Wednesday, 31 October 2018
Nonantibiotic prevention and management of recurrent urinary tract infection
Review Article | Published: 25 October 2018
Néha Sihra, Anna Goodman, Rhana Zakri, Arun Sahai & Sachin Malde
Nature Reviews Urology (2018) | Download Citation
Abstract
Urinary tract infections (UTIs) are highly prevalent, lead to considerable patient morbidity, incur large financial costs to health-care systems and are one of the most common reasons for antibiotic use worldwide. The growing problem of antimicrobial resistance means that the search for nonantibiotic alternatives for the treatment and prevention of UTI is of critical importance. Potential nonantibiotic measures and treatments for UTIs include behavioural changes, dietary supplementation (such as Chinese herbal medicines and cranberry products), NSAIDs, probiotics, D-mannose, methenamine hippurate, estrogens, intravesical glycosaminoglycans, immunostimulants, vaccines and inoculation with less-pathogenic bacteria. Some of the results of trials of these approaches are promising; however, high-level evidence is required before firm recommendations for their use can be made. A combination of these agents might provide the optimal treatment to reduce recurrent UTI, and trials in specific population groups are required.
Key points
Rising rates of antimicrobial resistance, fuelled by the overuse of antibiotics in humans, are a serious threat to global public health.
Alternatives to antibiotics for the prevention of recurrent urinary tract infection (UTI) are attractive options to reduce the risks of antimicrobial resistance.
The most commonly studied nonantibiotic management options for recurrent UTI include cranberries, probiotics, D-mannose, methenamine hippurate, estrogens, intravesical glycosaminoglycans and immunostimulants.
Studies of novel vaccines targeting the adherence mechanisms of uropathogenic bacteria seem promising, but human trials are required to determine the efficacy of this approach.
Evidence for the nonantibiotic measures is hampered by considerable heterogeneity, and further placebo-controlled randomized trials of these agents are needed.
Access options
Subscribe to Journal
Get full journal access for 1 year
$199.00
only $16.58 per issue
Subscribe
All prices are NET prices.
VAT will be added later in the checkout.
Rent or Buy article
Get time limited or full article access on ReadCube.
from$8.99
Rent or Buy
All prices are NET prices.
Additional access options:
Log inOpenAthensShibboleth
Additional information
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
References
1.
Stamm, W. E. & Norrby, S. R. Urinary tract infections: disease panorama and challenges. J. Infect. Dis. 183, S1–S4 (2001).
Show context for reference 1
PubMedArticle Google Scholar
2.
Laupland, K. B., Ross, T., Pitout, J. D., Church, D. L. & Gregson, D. B. Community-onset urinary tract infections: a population-based assessment. Infection 35, 150–153 (2007).
Show context for reference 2
CASPubMedArticle Google Scholar
3.
Mabeck, C. E. Treatment of uncomplicated urinary tract infection in non-pregnant women. Postgrad. Med. J. 48, 69–75 (1972).
Show context for reference 3
CASPubMedArticlePubMed Central Google Scholar
4.
Foxman, B. Epidemiology of urinary tract infections: incidence, morbidity, and economic costs. Am. J. Med. 113 (Suppl 1A), 5s–13s (2002).
Show context for reference 4
PubMedArticle Google Scholar
5.
Nicolle, L. E. Urinary tract infection. Crit. Care Clin. 29, 699–715 (2013).
Show context for reference 5
PubMedArticle Google Scholar
6.
Loveday, H. P. et al. epic3: national evidence-based guidelines for preventing healthcare-associated infections in NHS hospitals in England. J. Hosp. Infect. 86, S1–S70 (2014).
Show context for reference 6
PubMedArticle Google Scholar
7.
Flores-Mireles, A. L., Walker, J. N., Caparon, M. & Hultgren, S. J. Urinary tract infections: epidemiology, mechanisms of infection and treatment options. Nat. Rev. Microbiol. 13, 269–284 (2015).
Show context for reference 7
CASPubMedArticlePubMed Central Google Scholar
8.
Ellis, A. K. & Verma, S. Quality of life in women with urinary tract infections: is benign disease a misnomer? J. Am. Board Fam. Pract. 13, 392–397 (2000).
Show context for reference 8
CASPubMedArticle Google Scholar
9.
Foxman, B. & Frerichs, R. R. Epidemiology of urinary tract infection: I. Diaphragm use and sexual intercourse. Am. J. Publ. Health 75, 1308–1313 (1985).
Show context for reference 9
CASArticle Google Scholar
10.
Akkerman, A. E., Kuyvenhoven, M. M., Verheij, T. J. & van Dijk, L. Antibiotics in Dutch general practice: nationwide electronic GP database and national reimbursement rates. Pharmacoepidemiol. Drug Saf. 17, 378–383 (2008).
Show context for reference 10
PubMedArticle Google Scholar
11.
European Centre for Disease Prevention and Control. ECDC/EMEA Joint Technical Report. The bacterial challenge: time to react (ECDC, 2009).
Show context for reference 11
12.
Llor, C. & Bjerrum, L. Antimicrobial resistance: risk associated with antibiotic overuse and initiatives to reduce the problem. Ther. Adv. Drug Safety 5, 229–241 (2014).
Show context for reference 12
Article Google Scholar
13.
Gupta, K. et al. Inverse association of H2O2-producing lactobacilli and vaginal Escherichia coli colonization in women with recurrent urinary tract infections. J. Infect. Dis. 178, 446–450 (1998).
Show context for reference 13
CASPubMedArticle Google Scholar
14.
Foxman, B. et al. Uropathogenic Escherichia coli are more likely than commensal E. coli to be shared between heterosexual sex partners. Am. J. Epidemiol. 156, 1133–1140 (2002).
Show context for reference 14
PubMedArticle Google Scholar
15.
Mulvey, M. A., Schilling, J. D. & Hultgren, S. J. Establishment of a persistent Escherichia coli reservoir during the acute phase of a bladder infection. Infect. Immun. 69, 4572–4579 (2001).
Show context for reference 15
CASPubMedArticlePubMed Central Google Scholar
16.
Schilling, J. D., Lorenz, R. G. & Hultgren, S. J. Effect of trimethoprim-sulfamethoxazole on recurrent bacteriuria and bacterial persistence in mice infected with uropathogenic. Escherichia coli. Infect. Immun. 70, 7042–7049 (2002).
Show context for reference 16
CASPubMedArticle Google Scholar
17.
Rosen, D. A., Hooton, T. M., Stamm, W. E., Humphrey, P. A. & Hultgren, S. J. Detection of intracellular bacterial communities in human urinary tract infection. PLoS Med. 4, e329 (2007).
Show context for reference 17
PubMedArticlePubMed Central Google Scholar
18.
World Health Organisation. Antimicrobial resistance: global report on surveillance 2014 (WHO, 2014).
Show context for reference 18
19.
Bryce, A. et al. Global prevalence of antibiotic resistance in paediatric urinary tract infections caused by Escherichia coli and association with routine use of antibiotics in primary care: systematic review and meta-analysis. BMJ 352, i939 (2016).
Show context for reference 19
Google Scholar
20.
Johnson, J. R., Johnston, B., Clabots, C., Kuskowski, M. A. & Castanheira, M. Escherichia coli sequence type ST131 as the major cause of serious multidrug-resistant E. coli infections in the United States. Clin. Infect. Dis. 51, 286–294 (2010).
Show context for reference 20
PubMedArticle Google Scholar
21.
Wang, Y. et al. Prevalence, risk factors, outcomes, and molecular epidemiology of mcr-1-positive Enterobacteriaceae in patients and healthy adults from China: an epidemiological and clinical study. Lancet Infect. Dis. 17, 390–399 (2017).
Show context for reference 21
CASPubMedArticle Google Scholar
22.
Blair, J. M., Webber, M. A., Baylay, A. J., Ogbolu, D. O. & Piddock, L. J. Molecular mechanisms of antibiotic resistance. Nat. Rev. Microbiol. 13, 42–51 (2015).
Show context for reference 22
CASPubMedArticle Google Scholar
23.
Van Boeckel, T. P. et al. Global antibiotic consumption 2000 to 2010: an analysis of national pharmaceutical sales data. Lancet Infect. Dis. 14, 742–750 (2014).
Show context for reference 23
PubMedArticle Google Scholar
24.
Munita, J. M. & Arias, C. A. Mechanisms of antibiotic resistance. Microbiol. Spectr. https://doi.org/10.1128/microbiolspec.VMBF-0016-2015 (2016).
Show context for reference 24
ArticlePubMedPubMed Central Google Scholar
25.
Abraham, E. P. & Chain, E. An enzyme from bacteria able to destroy penicillin. 1940. Rev. Infect. Dis. 10, 677–678 (1988).
Show context for reference 25
CASPubMedArticle Google Scholar
26.
Logan, L. K. & Weinstein, R. A. The epidemiology of carbapenem-resistant Enterobacteriaceae: the impact and evolution of a global menace. J. Infect. Dis. 215, S28–S36 (2017).
Show context for reference 26
PubMedArticlePubMed Central Google Scholar
27.
Tangden, T., Adler, M., Cars, O., Sandegren, L. & Lowdin, E. Frequent emergence of porin-deficient subpopulations with reduced carbapenem susceptibility in ESBL-producing Escherichia coli during exposure to ertapenem in an in vitro pharmacokinetic model. J. Antimicrob. Chemother. 68, 1319–1326 (2013).
Show context for reference 27
PubMedArticleCAS Google Scholar
28.
Adler, M., Anjum, M., Andersson, D. I. & Sandegren, L. Influence of acquired β-lactamases on the evolution of spontaneous carbapenem resistance in. Escherichia coli. J. Antimicrob. Chemother. 68, 51–59 (2013).
Show context for reference 28
CASPubMedArticle Google Scholar
29.
Ma, L. et al. Widespread dissemination of aminoglycoside resistance genes armA and rmtB in Klebsiella pneumoniae isolates in Taiwan producing CTX-M-type extended-spectrum β-lactamases. Antimicrob. Agents Chemother. 53, 104–111 (2009).
Show context for reference 29
CASPubMedArticle Google Scholar
30.
Sanchez, G. V., Baird, A. M., Karlowsky, J. A., Master, R. N. & Bordon, J. M. Nitrofurantoin retains antimicrobial activity against multidrug-resistant urinary Escherichia coli from US outpatients. J. Antimicrob. Chemother. 69, 3259–3262 (2014).
Show context for reference 30
CASPubMedArticle Google Scholar
31.
Russell, G. Antibiotic resistance in children with E coli urinary tract infection. BMJ 352, i1399 (2016).
Show context for reference 31
PubMedArticlePubMed Central Google Scholar
32.
Heinemann, C. & Reid, G. Vaginal microbial diversity among postmenopausal women with and without hormone replacement therapy. Can. J. Microbiol. 51, 777–781 (2005).
Show context for reference 32
CASPubMedArticle Google Scholar
33.
Falagas, M. E., Rafailidis, P. I. & Makris, G. C. Bacterial interference for the prevention and treatment of infections. Int. J. Antimicrob. Agents 31, 518–522 (2008).
Show context for reference 33
CASPubMedArticle Google Scholar
34.
Chan, R. C., Reid, G., Irvin, R. T., Bruce, A. W. & Costerton, J. W. Competitive exclusion of uropathogens from human uroepithelial cells by Lactobacillus whole cells and cell wall fragments. Infect. Immun. 47, 84–89 (1985).
Show context for reference 34
CASPubMedPubMed Central Google Scholar
35.
Hooton, T. M. et al. A prospective study of risk factors for symptomatic urinary tract infection in young women. N. Engl. J. Med. 335, 468–474 (1996).
Show context for reference 35
CASPubMedArticle Google Scholar
36.
Hooton, T. M., Roberts, P. L. & Stamm, W. E. Effects of recent sexual activity and use of a diaphragm on the vaginal microflora. Clin. Infect. Dis. 19, 274–278 (1994).
Show context for reference 36
CASPubMedArticle Google Scholar
37.
Xie, J., Foxman, B., Zhang, L. & Marrs, C. F. Molecular epidemiologic identification of Escherichia coli genes that are potentially involved in movement of the organism from the intestinal tract to the vagina and bladder. J. Clin. Microbiol. 44, 2434–2441 (2006).
Show context for reference 37
CASPubMedArticlePubMed Central Google Scholar
38.
Scholes, D. et al. Risk factors for recurrent urinary tract infection in young women. J. Infect. Dis. 182, 1177–1182 (2000).
Show context for reference 38
CASPubMedArticle Google Scholar
39.
Moore, E. E. et al. Sexual intercourse and risk of symptomatic urinary tract infection in post-menopausal women. J. Gen. Intern. Med. 23, 595–599 (2008).
Show context for reference 39
PubMedArticlePubMed Central Google Scholar
40.
Foxman, B. et al. Urinary tract infection among women aged 40 to 65: behavioral and sexual risk factors. J. Clin. Epidemiol. 54, 710–718 (2001).
Show context for reference 40
CASPubMedArticle Google Scholar
41.
Raz, R. et al. Recurrent urinary tract infections in postmenopausal women. Clin. Infect. Dis. 30, 152–156 (2000).
Show context for reference 41
CASPubMedArticle Google Scholar
42.
Lema, V. M. Urinary tract infection in young healthy women following heterosexual anal intercourse: case reports. Afr. J. Reproductive Health 19, 134–139 (2015).
Show context for reference 42
Google Scholar
43.
Coull, N., Mastoroudes, H., Popert, R. & O’Brien, T. S. Redefining urological history taking - anal intercourse as the cause of unexplained symptoms in heterosexuals. Ann. R. Coll. Surg. Engl. 90, 403–405 (2008).
Show context for reference 43
PubMedArticlePubMed Central Google Scholar
44.
Gupta, K., Hillier, S. L., Hooton, T. M., Roberts, P. L. & Stamm, W. E. Effects of contraceptive method on the vaginal microbial flora: a prospective evaluation. J. Infect. Dis. 181, 595–601 (2000).
Show context for reference 44
CASPubMedArticle Google Scholar
45.
Handley, M. A., Reingold, A. L., Shiboski, S. & Padian, N. S. Incidence of acute urinary tract infection in young women and use of male condoms with and without nonoxynol-9 spermicides. Epidemiology 13, 431–436 (2002).
Show context for reference 45
PubMedArticle Google Scholar
46.
Su, S. B., Wang, J. N., Lu, C. W. & Guo, H. R. Reducing urinary tract infections among female clean room workers. J. Womens Health 15, 870–876 (2006).
Show context for reference 46
Article Google Scholar
47.
Foxman, B. & Chi, J. W. Health behavior and urinary tract infection in college-aged women. J. Clin. Epidemiol. 43, 329–337 (1990).
Show context for reference 47
CASPubMedArticle Google Scholar
48.
Adatto, K., Doebele, K. G., Galland, L. & Granowetter, L. Behavioral factors and urinary tract infection. JAMA 241, 2525–2526 (1979).
Show context for reference 48
CASPubMedArticle Google Scholar
49.
Nygaard, I. & Linder, M. Thirst at work — an occupational hazard? Int. Urogynecol. J. Pelvic Floor Dysfunct. 8, 340–343 (1997).
Show context for reference 49
CASPubMedArticle Google Scholar
50.
Eckford, S. D., Keane, D. P., Lamond, E., Jackson, S. R. & Abrams, P. Hydration monitoring in the prevention of recurrent idiopathic urinary tract infections in pre-menopausal women. Br. J. Urol. 76, 90–93 (1995).
Show context for reference 50
CASPubMedArticle Google Scholar
51.
Murphy, F. J., Zelman, S. & Mau, W. Ascorbic acid as a urinary acidifying agent. 2. Its adjunctive role in chronic urinary infection. J. Urol. 94, 300–303 (1965).
Show context for reference 51
CASPubMedArticle Google Scholar
52.
McDonald, D. F. & Murphy, G. P. Bacteriostatic and acidifying effects of methionine, hydrolyzed casein, and AA on the urine. N. Engl. J. Med. 261, 803–805 (1959).
Show context for reference 52
CASArticle Google Scholar
53.
Castello, T., Girona, L., Gomez, M. R., Mena Mur, A. & Garcia, L. The possible value of ascorbic acid as a prophylactic agent for urinary tract infection. Spinal Cord 34, 592–593 (1996).
Show context for reference 53
CASPubMedArticle Google Scholar
54.
Peng, M. M., Fang, Y., Hu, W. & Huang, Q. The pharmacological activities of compound salvia plebeia granules on treating urinary tract infection. J. Ethnopharmacol. 129, 59–63 (2010).
Show context for reference 54
PubMedArticle Google Scholar
55.
Yan, D., Jin, C., Xiao, X. H. & Dong, X. P. Antimicrobial properties of berberines alkaloids in Coptis chinensis Franch by microcalorimetry. J. Biochem. Biophys. Methods 70, 845–849 (2008).
Show context for reference 55
PubMedArticleCAS Google Scholar
56.
Flower, A., Wang, L. Q., Lewith, G., Liu, J. P. & Li, Q. Chinese herbal medicine for treating recurrent urinary tract infections in women. Cochrane Database Syst Rev. 6, CD01044 (2015).
Show context for reference 56
Google Scholar
57.
Ma, X. Y., Zhi, Y., Zhang, X., Zhao, H. & Gao, G. J. Clinical study of Xianqing Houbu method in treating senile female recurrent urinary tract infection. J. Emergency Tradit. Chinese Med. 20, 1918–1919 (2011).
Show context for reference 57
Google Scholar
58.
Shen, Y. & Yao, Q. Clinical observation of “baitouweng decoction” and “erxian decoction” in treating lower urinary infection in 52 postmenopausal women. Shanghai J. Tradit. Chinese Med. 41, 37–38 (2007).
Show context for reference 58
Google Scholar
59.
Zhao, K. S. et al. Clinical study of clearing liver fire, removing dampness, strengthening spleen and tonifying kidney methods in treating middle-aged and old woman with chronic urinary tract infection. Int. J. Tradit. Chinese Med. 33, 976–978 (2011).
Show context for reference 59
Google Scholar
60.
Chen, M., Wang, Y. & Gu, X. C. Clinical observation of modified “erxian decoction” plus antibiotics in treating chronic urinary tract infection in middle-aged and old women. Shanghai J. Tradit. Chinese Med. 42, 48–49 (2008).
Show context for reference 60
Google Scholar
61.
Luo, M. Clinical study of bushen tonglin decoction on female with chronic urinary tract infection. Hubei Uni. Chinese Med. (2011).
Show context for reference 61
62.
Gu, X. C., Xu, Z., Chen, M. & Wang, M. Study of erding erxian docoction compared with sanjin tablet in treating recurrent urinary tract infection. Chinese J. Integr. Tradit. Western Nephrol. 12, 623–624 (2011).
Show context for reference 62
Google Scholar
63.
Qin, S. G. Clinical analysis of Ningmitai capsule on 60 cases chronic urinary tract infection. Hebei Med. 10, 700–702 (2004).
Show context for reference 63
Google Scholar
64.
Balshem, H. et al. GRADE guidelines: 3. Rating the quality of evidence. J. Clin. Epidemiol. 64, 401–406 (2011).
Show context for reference 64
PubMedArticle Google Scholar
65.
Guay, D. R. Cranberry and urinary tract infections. Drugs 69, 775–807 (2009).
Show context for reference 65
CASPubMedArticle Google Scholar
66.
Borukh, I. F., Kirbaba, V. I. & Senchuk, G. V. [Antimicrobial properties of cranberry]. Voprosy Pitaniia 31, 82 (1972).
Show context for reference 66
CASPubMed Google Scholar
67.
Hisano, M., Bruschini, H., Nicodemo, A. C. & Srougi, M. Cranberries and lower urinary tract infection prevention. Clinics 67, 661–668 (2012).
Show context for reference 67
PubMedArticlePubMed Central Google Scholar
68.
Lynch, D. M. Cranberry for prevention of urinary tract infections. Am. Fam. Physician 70, 2175–2177 (2004).
Show context for reference 68
PubMed Google Scholar
69.
Beachey, E. H. Bacterial adherence: adhesin-receptor interactions mediating the attachment of bacteria to mucosal surface. J. Infect. Dis. 143, 325–345 (1981).
Show context for reference 69
CASPubMedArticle Google Scholar
70.
Howell, A. B. Bioactive compounds in cranberries and their role in prevention of urinary tract infections. Mol. Nutr. Food Res. 51, 732–737 (2007).
Show context for reference 70
CASPubMedArticle Google Scholar
71.
Ofek, I. & Beachey, E. H. Mannose binding and epithelial cell adherence of Escherichia coli. Infect. Immun. 22, 247–254 (1978).
Show context for reference 71
CASPubMedPubMed Central Google Scholar
72.
Zafriri, D., Ofek, I., Adar, R., Pocino, M. & Sharon, N. Inhibitory activity of cranberry juice on adherence of type 1 and type P fimbriated Escherichia coli to eucaryotic cells. Antimicrob. Agents Chemother. 33, 92–98 (1989).
Show context for reference 72
CASPubMedArticlePubMed Central Google Scholar
73.
Hidalgo, G., Chan, M. & Tufenkji, N. Inhibition of Escherichia coli CFT073 fliC expression and motility by cranberry materials. Appl. Environ. Microbiol. 77, 6852–6857 (2011).
Show context for reference 73
CASPubMedArticlePubMed Central Google Scholar
74.
O’May, C. & Tufenkji, N. The swarming motility of Pseudomonas aeruginosa is blocked by cranberry proanthocyanidins and other tannin-containing materials. Appl. Environ. Microbiol. 77, 3061–3067 (2011).
Show context for reference 74
PubMedArticleCASPubMed Central Google Scholar
75.
Howell, A. B. et al. A-Type cranberry proanthocyanidins and uropathogenic bacterial anti-adhesion activity. Phytochemistry 66, 2281–2291 (2005).
Show context for reference 75
CASPubMedArticle Google Scholar
76.
Liu, Y., Black, M. A., Caron, L. & Camesano, T. A. Role of cranberry juice on molecular-scale surface characteristics and adhesion behavior of Escherichia coli. Biotechnol. Bioengineer. 93, 297–305 (2006).
Show context for reference 76
CASArticle Google Scholar
77.
Vasileiou, I., Katsargyris, A., Theocharis, S. & Giaginis, C. Current clinical status on the preventive effects of cranberry consumption against urinary tract infections. Nutr. Res. 33, 595–607 (2013).
Show context for reference 77
CASPubMedArticle Google Scholar
78.
Ren, D. et al. Differential gene expression for investigation of Escherichia coli biofilm inhibition by plant extract ursolic acid. Appl. Environ. Microbiol. 71, 4022–4034 (2005).
Show context for reference 78
CASPubMedArticlePubMed Central Google Scholar
79.
Grace, M. H., Massey, A. R., Mbeunkui, F., Yousef, G. G. & Lila, M. A. Comparison of health-relevant flavonoids in commonly consumed cranberry products. J. Food Sci. 77, H176–H183 (2012).
Show context for reference 79
CASPubMedArticle Google Scholar
80.
Howell, A. B. & Foxman, B. Cranberry juice and adhesion of antibiotic-resistant uropathogens. JAMA 287, 3082–3083 (2002).
Show context for reference 80
PubMedArticle Google Scholar
81.
Avorn, J. et al. Reduction of bacteriuria and pyuria after ingestion of cranberry juice. JAMA 271, 751–754 (1994).
Show context for reference 81
CASPubMedArticle Google Scholar
82.
Howell, A. B. et al. Dosage effect on uropathogenic Escherichia coli anti-adhesion activity in urine following consumption of cranberry powder standardized for proanthocyanidin content: a multicentric randomized double blind study. BMC Infect. Dis. 10, 94 (2010).
Show context for reference 82
PubMedArticlePubMed Central Google Scholar
83.
Beerepoot, M. & Geerlings, S. Non-antibiotic prophylaxis for urinary tract infections. Pathogens 5, E36 (2016).
Show context for reference 83
PubMedArticleCAS Google Scholar
84.
Luis, A., Domingues, F. & Pereira, L. Can cranberries contribute to reduce the incidence of urinary tract infections? A systematic review with meta-analysis and trial sequential analysis of clinical trials. J. Urol. 198, 614–621 (2017).
Show context for reference 84
PubMedArticle Google Scholar
85.
Jepson, R. G., Williams, G. & Craig, J. C. Cranberries for preventing urinary tract infections. Cochrane Database Syst. Rev. 10, CD001321 (2012).
Show context for reference 85
PubMed Google Scholar
86.
Wang, C. H. et al. Cranberry-containing products for prevention of urinary tract infections in susceptible populations: a systematic review and meta-analysis of randomized controlled trials. Arch. Intern. Med. 172, 988–996 (2012).
Show context for reference 86
PubMed Google Scholar
87.
Stothers, L. A randomized trial to evaluate effectiveness and cost effectiveness of naturopathic cranberry products as prophylaxis against urinary tract infection in women. Can. J. Urol. 9, 1558–1562 (2002).
Show context for reference 87
PubMed Google Scholar
88.
Vostalova, J. et al. Are high proanthocyanidins key to cranberry efficacy in the prevention of recurrent urinary tract infection? Phytother. Res. 29, 1559–1567 (2015).
Show context for reference 88
CASPubMedArticle Google Scholar
89.
Maki, K. C. et al. Consumption of a cranberry juice beverage lowered the number of clinical urinary tract infection episodes in women with a recent history of urinary tract infection. Am. J. Clin. Nutr. 103, 1434–1442 (2016).
Show context for reference 89
CASPubMedArticle Google Scholar
90.
Kontiokari, T. et al. Randomised trial of cranberry-lingonberry juice and Lactobacillus GG drink for the prevention of urinary tract infections in women. BMJ 322, 1571 (2001).
Show context for reference 90
CASPubMedArticlePubMed Central Google Scholar
91.
Stapleton, A. E. et al. Recurrent urinary tract infection and urinary Escherichia coli in women ingesting cranberry juice daily: a randomized controlled trial. Mayo Clin. Proc. 87, 143–150 (2012).
Show context for reference 91
PubMedArticlePubMed Central Google Scholar
92.
Barbosa-Cesnik, C. et al. Cranberry juice fails to prevent recurrent urinary tract infection: results from a randomized placebo-controlled trial. Clin. Infect. Dis. 52, 23–30 (2011).
Show context for reference 92
PubMedArticlePubMed Central Google Scholar
93.
Foxman, B. et al. Risk factors for second urinary tract infection among college women. Am. J. Epidemiol. 151, 1194–1205 (2000).
Show context for reference 93
CASPubMedArticle Google Scholar
94.
McMurdo, M. E., Argo, I., Phillips, G., Daly, F. & Davey, P. Cranberry or trimethoprim for the prevention of recurrent urinary tract infections? A randomized controlled trial in older women. J. Antimicrob. Chemother. 63, 389–395 (2009).
Show context for reference 94
CASPubMedArticle Google Scholar
95.
Beerepoot, M. A. et al. Cranberries versus antibiotics to prevent urinary tract infections: a randomized double-blind noninferiority trial in premenopausal women. Arch. Intern. Med. 171, 1270–1278 (2011).
Show context for reference 95
PubMedArticle Google Scholar
96.
Beerepoot, M. A., Geerlings, S. E., van Haarst, E. P., van Charante, N. M. & ter Riet, G. Nonantibiotic prophylaxis for recurrent urinary tract infections: a systematic review and meta-analysis of randomized controlled trials. J. Urol. 190, 1981–1989 (2013).
Show context for reference 96
CASPubMedArticle Google Scholar
97.
Caljouw, M. A. et al. Effectiveness of cranberry capsules to prevent urinary tract infections in vulnerable older persons: a double-blind randomized placebo-controlled trial in long-term care facilities. J. Am. Geriatr. Soc. 62, 103–110 (2014).
Show context for reference 97
PubMedArticle Google Scholar
98.
Juthani-Mehta, M. et al. Effect of cranberry capsules on bacteriuria plus pyuria among older women in nursing homes: a randomized clinical trial. JAMA 316, 1879–1887 (2016).
Show context for reference 98
CASPubMedArticlePubMed Central Google Scholar
99.
Afshar, K., Stothers, L., Scott, H. & MacNeily, A. E. Cranberry juice for the prevention of pediatric urinary tract infection: a randomized controlled trial. J. Urol. 188, 1584–1587 (2012).
Show context for reference 99
CASPubMedArticle Google Scholar
100.
Ferrara, P. et al. Cranberry juice for the prevention of recurrent urinary tract infections: a randomized controlled trial in children. Scand. J. Urol. Nephrol. 43, 369–372 (2009).
Show context for reference 100
PubMedArticle Google Scholar
101.
Wing, D. A., Rumney, P. J., Preslicka, C. W. & Chung, J. H. Daily cranberry juice for the prevention of asymptomatic bacteriuria in pregnancy: a randomized, controlled pilot study. J. Urol. 180, 1367–1372 (2008).
Show context for reference 101
PubMedArticlePubMed Central Google Scholar
102.
Dugoua, J. J., Seely, D., Perri, D., Mills, E. & Koren, G. Safety and efficacy of cranberry (Vaccinium macrocarpon) during pregnancy and lactation. Can. J. Clin. Pharmacol. 15, e80–e86 (2008).
Show context for reference 102
PubMed Google Scholar
103.
Hannan, T. J., Mysorekar, I. U., Hung, C. S., Isaacson-Schmid, M. L. & Hultgren, S. J. Early severe inflammatory responses to uropathogenic E. coli predispose to chronic and recurrent urinary tract infection. PLoS Pathog. 6, e1001042 (2010).
Show context for reference 103
PubMedArticleCASPubMed Central Google Scholar
104.
Schlager, T. A., LeGallo, R., Innes, D., Hendley, J. O. & Peters, C. A. B cell infiltration and lymphonodular hyperplasia in bladder submucosa of patients with persistent bacteriuria and recurrent urinary tract infections. J. Urol. 186, 2359–2364 (2011).
Show context for reference 104
CASPubMedArticle Google Scholar
105.
Hannan, T. J. et al. Inhibition of cyclooxygenase-2 prevents chronic and recurrent cystitis. EBioMedicine 1, 46–57 (2014).
Show context for reference 105
PubMedArticlePubMed Central Google Scholar
106.
Wheeler, M. A., Hausladen, D. A., Yoon, J. H. & Weiss, R. M. Prostaglandin E2 production and cyclooxygenase-2 induction in human urinary tract infections and bladder cancer. J. Urol. 168, 1568–1573 (2002).
Show context for reference 106
CASPubMedArticle Google Scholar
107.
Bleidorn, J., Gagyor, I., Kochen, M. M., Wegscheider, K. & Hummers-Pradier, E. Symptomatic treatment (ibuprofen) or antibiotics (ciprofloxacin) for uncomplicated urinary tract infection?—results of a randomized controlled pilot trial. BMC Med. 8, 30 (2010).
Show context for reference 107
PubMedArticleCASPubMed Central Google Scholar
108.
Gagyor, I. et al. Ibuprofen versus fosfomycin for uncomplicated urinary tract infection in women: randomised controlled trial. BMJ 351, h6544 (2015).
Show context for reference 108
PubMedArticleCASPubMed Central Google Scholar
109.
Ferry, S. A., Holm, S. E., Stenlund, H., Lundholm, R. & Monsen, T. J. The natural course of uncomplicated lower urinary tract infection in women illustrated by a randomized placebo controlled study. Scand. J. Infect. Dis. 36, 296–301 (2004).
Show context for reference 109
PubMedArticle Google Scholar
110.
Christiaens, T. C. et al. Randomised controlled trial of nitrofurantoin versus placebo in the treatment of uncomplicated urinary tract infection in adult women. Br. J. Gen. Pract. 52, 729–734 (2002).
Show context for reference 110
CASPubMedPubMed Central Google Scholar
111.
Kalle, A. M. & Rizvi, A. Inhibition of bacterial multidrug resistance by celecoxib, a cyclooxygenase-2 inhibitor. Antimicrob. Agents Chemother. 55, 439–442 (2011).
Show context for reference 111
CASPubMedArticle Google Scholar
112.
Velraeds, M. M., van der Mei, H. C., Reid, G. & Busscher, H. J. Inhibition of initial adhesion of uropathogenic Enterococcus faecalis by biosurfactants from Lactobacillus isolates. Appl. Environ. Microbiol. 62, 1958–1963 (1996).
Show context for reference 112
CASPubMedPubMed Central Google Scholar
113.
Bruce, A. W., Chadwick, P., Hassan, A. & VanCott, G. F. Recurrent urethritis in women. Can. Med. Assoc. J. 108, 973–976 (1973).
Show context for reference 113
CASPubMedPubMed Central Google Scholar
114.
Reid, G., Bruce, A. W., Cook, R. L. & Llano, M. Effect on urogenital flora of antibiotic therapy for urinary tract infection. Scand. J. Infect. Dis. 22, 43–47 (1990).
Show context for reference 114
CASPubMedArticle Google Scholar
115.
Andreu, A., Stapleton, A. E., Fennell, C. L., Hillier, S. L. & Stamm, W. E. Hemagglutination, adherence, and surface properties of vaginal Lactobacillus species. J. Infect. Dis. 171, 1237–1243 (1995).
Show context for reference 115
CASPubMedArticle Google Scholar
116.
Osset, J., Bartolome, R. M., Garcia, E. & Andreu, A. Assessment of the capacity of Lactobacillus to inhibit the growth of uropathogens and block their adhesion to vaginal epithelial cells. J. Infect. Dis. 183, 485–491 (2001).
Show context for reference 116
CASPubMedArticle Google Scholar
117.
Mastromarino, P. et al. Characterization and selection of vaginal Lactobacillus strains for the preparation of vaginal tablets. J. Appl. Microbiol. 93, 884–893 (2002).
Show context for reference 117
CASPubMedArticle Google Scholar
118.
Barrons, R. & Tassone, D. Use of Lactobacillus probiotics for bacterial genitourinary infections in women: a review. Clin. Ther. 30, 453–468 (2008).
Show context for reference 118
CASPubMedArticle Google Scholar
119.
Zarate, G. & Nader-Macias, M. E. Influence of probiotic vaginal lactobacilli on in vitro adhesion of urogenital pathogens to vaginal epithelial cells. Lett. Appl. Microbiol. 43, 174–180 (2006).
Show context for reference 119
CASPubMedArticle Google Scholar
120.
de Llano, D. G. et al. Strain-specific inhibition of the adherence of uropathogenic bacteria to bladder cells by probiotic Lactobacillus spp. Pathog. Dis. https://doi.org/10.1093/femspd/ftx043 (2017).
Show context for reference 120
ArticlePubMed Google Scholar
121.
Manzoor, A., Ul-Haq, I., Baig, S., Qazi, J. I. & Seratlic, S. Efficacy of locally isolated lactic acid bacteria against antibiotic-resistant uropathogens. Jundishapur J. Microbiol. 9, e18952 (2016).
Show context for reference 121
PubMedArticleCASPubMed Central Google Scholar
122.
Shim, Y. H., Lee, S. J. & Lee, J. W. Antimicrobial activity of lactobacillus strains against uropathogens. Pediatr. Int. 58, 1009–1013 (2016).
Show context for reference 122
CASPubMedArticle Google Scholar
123.
Aroutcheva, A. et al. Defense factors of vaginal lactobacilli. Am. J. Obstetr. Gynecol. 185, 375–379 (2001).
Show context for reference 123
CASArticle Google Scholar
124.
Atassi, F. & Servin, A. L. Individual and co-operative roles of lactic acid and hydrogen peroxide in the killing activity of enteric strain Lactobacillus johnsonii NCC933 and vaginal strain Lactobacillus gasseri KS120.1 against enteric, uropathogenic and vaginosis-associated pathogens. FEMS Microbiol. Lett. 304, 29–38 (2010).
Show context for reference 124
CASPubMedArticle Google Scholar
125.
Alakomi, H. L. et al. Lactic acid permeabilizes gram-negative bacteria by disrupting the outer membrane. Appl. Environ. Microbiol. 66, 2001–2005 (2000).
Show context for reference 125
CASPubMedArticlePubMed Central Google Scholar
126.
Amdekar, S., Singh, V. & Singh, D. D. Probiotic therapy: immunomodulating approach toward urinary tract infection. Curr. Microbiol. 63, 484–490 (2011).
Show context for reference 126
CASPubMedArticle Google Scholar
127.
Karlsson, M., Scherbak, N., Khalaf, H., Olsson, P. E. & Jass, J. Substances released from probiotic Lactobacillus rhamnosus GR-1 potentiate NF-κB activity in Escherichia coli-stimulated urinary bladder cells. FEMS Immunol. Med. Microbiol. 66, 147–156 (2012).
Show context for reference 127
CASPubMedArticle Google Scholar
128.
Fettweis, J. M. et al. Differences in vaginal microbiome in African American women versus women of European ancestry. Microbiology 160, 2272–2282 (2014).
Show context for reference 128
CASPubMedArticlePubMed Central Google Scholar
129.
Baerheim, A., Larsen, E. & Digranes, A. Vaginal application of lactobacilli in the prophylaxis of recurrent lower urinary tract infection in women. Scand. J. Prim. Health Care 12, 239–243 (1994).
Show context for reference 129
CASPubMedArticle Google Scholar
130.
Colodner, R., Edelstein, H., Chazan, B. & Raz, R. Vaginal colonization by orally administered Lactobacillus rhamnosus GG. Isr. Med. Assoc. J. 5, 767–769 (2003).
Show context for reference 130
PubMed Google Scholar
131.
Reid, G., Millsap, K. & Bruce, A. W. Implantation of Lactobacillus casei var rhamnosus into vagina. Lancet 344, 1229 (1994).
Show context for reference 131
CASPubMedArticle Google Scholar
132.
Morelli, L., Zonenenschain, D., Del Piano, M. & Cognein, P. Utilization of the intestinal tract as a delivery system for urogenital probiotics. J. Clin. Gastroenterol. 38, S107–S110 (2004).
Show context for reference 132
CASPubMedArticle Google Scholar
133.
Cribby, S., Taylor, M. & Reid, G. Vaginal microbiota and the use of probiotics. Interdiscip. Perspect. Infect. Dis. 2008, 256490 (2008).
Show context for reference 133
PubMedArticleCAS Google Scholar
134.
Mezzasalma, V. et al. Orally administered multispecies probiotic formulations to prevent uro-genital infections: a randomized placebo-controlled pilot study. Arch. Gynecol. Obstetr. 295, 163–172 (2017).
Show context for reference 134
Article Google Scholar
135.
Reid, G. et al. Oral use of Lactobacillus rhamnosus GR-1 and L. fermentum RC-14 significantly alters vaginal flora: randomized, placebo-controlled trial in 64 healthy women. FEMS Immunol. Med. Microbiol. 35, 131–134 (2003).
Show context for reference 135
CASPubMedArticle Google Scholar
136.
Beerepoot, M. A. et al. Lactobacilli vs antibiotics to prevent urinary tract infections: a randomized, double-blind, noninferiority trial in postmenopausal women. Arch. Intern. Med. 172, 704–712 (2012).
Show context for reference 136
CASPubMedArticle Google Scholar
137.
Lee, S. J., Shim, Y. H., Cho, S. J. & Lee, J. W. Probiotics prophylaxis in children with persistent primary vesicoureteral reflux. Pediatr. Nephrol. 22, 1315–1320 (2007).
Show context for reference 137
PubMedArticle Google Scholar
138.
Mohseni, M. J. et al. Combination of probiotics and antibiotics in the prevention of recurrent urinary tract infection in children. Iranian J. Pediatr. 23, 430–438 (2013).
Show context for reference 138
Google Scholar
139.
Reid, G., Bruce, A. W. & Taylor, M. Influence of three-day antimicrobial therapy and lactobacillus vaginal suppositories on recurrence of urinary tract infections. Clin. Ther. 14, 11–16 (1992).
Show context for reference 139
CASPubMed Google Scholar
140.
Stapleton, A. E. et al. Randomized, placebo-controlled phase 2 trial of a Lactobacillus crispatus probiotic given intravaginally for prevention of recurrent urinary tract infection. Clin. Infect. Dis. 52, 1212–1217 (2011).
Show context for reference 140
PubMedArticlePubMed Central Google Scholar
141.
Schwenger, E. M., Tejani, A. M. & Loewen, P. S. Probiotics for preventing urinary tract infections in adults and children. Cochrane Database Syst. Rev. 12, CD008772 (2015).
Show context for reference 141
Google Scholar
142.
Grin, P. M., Kowalewska, P. M., Alhazzan, W. & Fox-Robichaud, A. E. Lactobacillus for preventing recurrent urinary tract infections in women: meta-analysis. Can. J. Urol. 20, 6607–6614 (2013).
Show context for reference 142
PubMed Google Scholar
143.
Davis, J. A. & Freeze, H. H. Studies of mannose metabolism and effects of long-term mannose ingestion in the mouse. Biochim. Biophys. Acta 1528, 116–126 (2001).
Show context for reference 143
CASPubMedArticle Google Scholar
144.
Fronzes, R., Remaut, H. & Waksman, G. Architectures and biogenesis of non-flagellar protein appendages in Gram-negative bacteria. EMBO J. 27, 2271–2280 (2008).
Show context for reference 144
CASPubMedArticlePubMed Central Google Scholar
145.
Choudhury, D. et al. X-Ray structure of the FimC-FimH chaperone-adhesin complex from uropathogenic Escherichia coli. Science 285, 1061–1066 (1999).
Show context for reference 145
CASPubMedArticle Google Scholar
146.
Zhou, G. et al. Uroplakin Ia is the urothelial receptor for uropathogenic Escherichia coli: evidence from in vitro FimH binding. J. Cell Sci. 114, 4095–4103 (2001).
Show context for reference 146
CASPubMed Google Scholar
147.
Pak, J., Pu, Y., Zhang, Z. T., Hasty, D. L. & Wu, X. R. Tamm-Horsfall protein binds to type 1 fimbriated Escherichia coli and prevents E. coli from binding to uroplakin Ia and Ib receptors. J. Biol. Chem. 276, 9924–9930 (2001).
Show context for reference 147
CASPubMedArticle Google Scholar
148.
Eto, D. S., Jones, T. A., Sundsbak, J. L. & Mulvey, M. A. Integrin-mediated host cell invasion by type 1-piliated uropathogenic Escherichia coli. PLoS Pathog. 3, e100 (2007).
Show context for reference 148
PubMedArticleCAS Google Scholar
149.
Mydock-McGrane, L. K., Cusumano, Z. T. & Janetka, J. W. Mannose-derived FimH antagonists: a promising anti-virulence therapeutic strategy for urinary tract infections and Crohn’s disease. Expert Opin. Ther. Patents 26, 175–197 (2016).
Show context for reference 149
CASArticle Google Scholar
150.
Michaels, E. K., Chmiel, J. S., Plotkin, B. J. & Schaeffer, A. J. Effect of D-mannose and D-glucose on Escherichia coli bacteriuria in rats. Urol. Res. 11, 97–102 (1983).
Show context for reference 150
CASPubMedArticle Google Scholar
151.
Schaeffer, A. J., Chmiel, J. S., Duncan, J. L. & Falkowski, W. S. Mannose-sensitive adherence of Escherichia coli to epithelial cells from women with recurrent urinary tract infections. J. Urol. 131, 906–910 (1984).
Show context for reference 151
CASPubMedArticle Google Scholar
152.
Wellens, A. et al. Intervening with urinary tract infections using anti-adhesives based on the crystal structure of the FimH-oligomannose-3 complex. PLOS ONE 3, e2040 (2008).
Show context for reference 152
PubMedArticleCASPubMed Central Google Scholar
153.
Cusumano, C. K. et al. Treatment and prevention of urinary tract infection with orally active FimH inhibitors. Sci. Transl Med. 3, 109ra115 (2011).
Show context for reference 153
PubMedArticleCASPubMed Central Google Scholar
154.
Spaulding, C. N. et al. Selective depletion of uropathogenic E. coli from the gut by a FimH antagonist. Nature 546, 528–532 (2017).
Show context for reference 154
CASPubMedPubMed Central Google Scholar
155.
Mydock-McGrane, L. K., Hannan, T. J. & Janetka, J. W. Rational design strategies for FimH antagonists: new drugs on the horizon for urinary tract infection and Crohn’s disease. Expert Opin. Drug Discov. 12, 711–731 (2017).
Show context for reference 155
CASPubMedArticlePubMed Central Google Scholar
156.
Kranjcec, B., Papes, D. & Altarac, S. D-Mannose powder for prophylaxis of recurrent urinary tract infections in women: a randomized clinical trial. World J. Urol. 32, 79–84 (2014).
Show context for reference 156
CASPubMedArticle Google Scholar
157.
Phe, V. et al. Open label feasibility study evaluating D-mannose combined with home-based monitoring of suspected urinary tract infections in patients with multiple sclerosis. Neurourol. Urodyn. 36, 1770–1775 (2017).
Show context for reference 157
CASPubMedArticle Google Scholar
158.
Vicariotto, F. Effectiveness of an association of a cranberry dry extract, D-mannose, and the two microorganisms Lactobacillus plantarum LP01 and Lactobacillus paracasei LPC09 in women affected by cystitis: a pilot study. J. Clin. Gastroenterol. 48, S96–S101 (2014).
Show context for reference 158
CASPubMedArticle Google Scholar
159.
Naves, P. et al. Effects of human serum albumin, ibuprofen and N-acetyl-L-cysteine against biofilm formation by pathogenic Escherichia coli strains. J. Hosp. Infect. 76, 165–170 (2010).
Show context for reference 159
CASPubMedArticle Google Scholar
160.
Palleschi, G. et al. Prospective study to compare antibiosis versus the association of N-acetylcysteine, D-mannose and Morinda citrifolia fruit extract in preventing urinary tract infections in patients submitted to urodynamic investigation. Arch. Ital. Urol. Androl. 89, 45–50 (2017).
Show context for reference 160
CASPubMedArticle Google Scholar
161.
Hamilton-Miller, J. M. & Brumfitt, W. Methenamine and its salts as urinary tract antiseptics: variables affecting the antibacterial activity of formaldehyde, mandelic acid, and hippuric acid in vitro. Invest. Urol. 14, 287–291 (1977).
Show context for reference 161
CASPubMed Google Scholar
162.
Neely, W. B. Action of formaldehyde on microorganisms. III. Bactericidal action of sublethal concentrations of formaldehyde on aerobacter aerogenes. J. Bacteriol. 86, 445–448 (1963).
Show context for reference 162
CASPubMedPubMed Central Google Scholar
163.
Musher, D. M. & Griffith, D. P. Generation of formaldehyde from methenamine: effect of pH and concentration, and antibacterial effect. Antimicrob. Agents Chemother. 6, 708–711 (1974).
Show context for reference 163
CASPubMedArticlePubMed Central Google Scholar
164.
Lee, B. S., Bhuta, T., Simpson, J. M. & Craig, J. C. Methenamine hippurate for preventing urinary tract infections. Cochrane Database Syst. Rev. 10, CD003265 (2012).
Show context for reference 164
PubMed Google Scholar
165.
Nahata, M. C., Cummins, B. A., McLeod, D. C. & Butler, R. Predictability of methenamine efficacy based on type of urinary pathogen and pH. J. Am. Geriatr. Soc. 29, 236–239 (1981).
Show context for reference 165
CASPubMedArticle Google Scholar
166.
Nahata, M. C., Cummins, B. A., McLeod, D. C., Schondelmeyer, S. W. & Butler, R. Effect of urinary acidifiers on formaldehyde concentration and efficacy with methenamine therapy. Eur. J. Clin. Pharmacol. 22, 281–284 (1982).
Show context for reference 166
CASPubMedArticle Google Scholar
167.
Sander, S. & Jakobsen, A. Jr. [Preventive Hiprex in urinary tract operations]. Tidsskr. Nor. Laegeforen. 96, 167–169 (1976).
Show context for reference 167
CASPubMed Google Scholar
168.
Thomlinson, J., Williams, J. D. & Cope, E. Persistence of bacteriuria following gynaecological surgery: a trial of methenamine hippurate. Br. J. Urol. 40, 479–482 (1968).
Show context for reference 168
CASPubMedArticle Google Scholar
169.
ISRCTN registry. Alternatives to prophylactic antibiotics for the treatment of recurrent urinary tract infection in women. BMC http://www.isrctn.com/ISRCTN70219762 (2016).
Show context for reference 169
170.
Mulvey, M. A., Schilling, J. D., Martinez, J. J. & Hultgren, S. J. Bad bugs and beleaguered bladders: interplay between uropathogenic Escherichia coli and innate host defenses. Proc. Natl Acad. Sci. USA 97, 8829–8835 (2000).
Show context for reference 170
CASPubMedArticle Google Scholar
171.
Teng, J., Wang, Z. Y., Jarrard, D. F. & Bjorling, D. E. Roles of estrogen receptor α and β in modulating urothelial cell proliferation. Endocr. Relat. Cancer 15, 351–364 (2008).
Show context for reference 171
CASPubMedArticlePubMed Central Google Scholar
172.
Simpson, E. R. Sources of estrogen and their importance. J. Steroid Biochem. Mol. Biol. 86, 225–230 (2003).
Show context for reference 172
CASPubMedArticle Google Scholar
173.
Raz, R. Hormone replacement therapy or prophylaxis in post-menopausal women with urinary tract infection. J. Infect. Dis. 183, 74–76 (2001).
Show context for reference 173
Article Google Scholar
174.
Marshburn, P. B. & Carr, B. R. Hormone replacement therapy. Protection against the consequences of menopause. Postgrad. Med. 92, 145–148, 151–142, 157–149 (1992).
Show context for reference 174
CASPubMedArticle Google Scholar
175.
Luthje, P., Hirschberg, A. L. & Brauner, A. Estrogenic action on innate defense mechanisms in the urinary tract. Maturitas 77, 32–36 (2014).
Show context for reference 175
CASPubMedArticle Google Scholar
176.
Robinson, D. & Cardozo, L. Oestrogens and the lower urinary tract. BJOG 111 (Suppl. 1), 10–14 (2004).
Show context for reference 176
CASPubMedArticle Google Scholar
177.
Hannan, T. J., Hooton, T. M. & Hultgren, S. J. Estrogen and recurrent UTI: what are the facts? Sci. Transl Med. 5, 190fs123 (2013).
Show context for reference 177
ArticleCAS Google Scholar
178.
Mirmonsef, P. et al. Exploratory comparison of vaginal glycogen and Lactobacillus levels in premenopausal and postmenopausal women. Menopause 22, 702–709 (2015).
Show context for reference 178
PubMedArticlePubMed Central Google Scholar
179.
Miller, L. et al. Depomedroxyprogesterone-induced hypoestrogenism and changes in vaginal flora and epithelium. Obstetr. Gynecol. 96, 431–439 (2000).
Show context for reference 179
CAS Google Scholar
180.
Raz, R. & Stamm, W. E. A controlled trial of intravaginal estriol in postmenopausal women with recurrent urinary tract infections. N. Engl. J. Med. 329, 753–756 (1993).
Show context for reference 180
CASPubMedArticle Google Scholar
181.
Chromek, M. et al. The antimicrobial peptide cathelicidin protects the urinary tract against invasive bacterial infection. Nat. Med. 12, 636–641 (2006).
Show context for reference 181
CASPubMedArticle Google Scholar
182.
Luthje, P. et al. Estrogen supports urothelial defense mechanisms. Sci. Transl Med. 5, 190ra180 (2013).
Show context for reference 182
ArticleCAS Google Scholar
183.
Stern, J. A., Hsieh, Y. C. & Schaeffer, A. J. Residual urine in an elderly female population: novel implications for oral estrogen replacement and impact on recurrent urinary tract infection. J. Urol. 171, 768–770 (2004).
Show context for reference 183
CASPubMedArticle Google Scholar
184.
Christiansen, C. & Riis, B. J. 17 β-estradiol and continuous norethisterone: a unique treatment for established osteoporosis in elderly women. J. Clin. Endocrinol. Metab. 71, 836–841 (1990).
Show context for reference 184
CASPubMedArticle Google Scholar
185.
Rossouw, J. E. et al. Postmenopausal hormone therapy and risk of cardiovascular disease by age and years since menopause. JAMA 297, 1465–1477 (2007).
Show context for reference 185
CASPubMedArticle Google Scholar
186.
Cardozo, L., Lose, G., McClish, D. & Versi, E. A systematic review of the effects of estrogens for symptoms suggestive of overactive bladder. Acta Obstet. Gynecol. Scand. 83, 892–897 (2004).
Show context for reference 186
PubMedArticle Google Scholar
187.
Brown, J. S. et al. Urinary tract infections in postmenopausal women: effect of hormone therapy and risk factors. Obstetr. Gynecol. 98, 1045–1052 (2001).
Show context for reference 187
CAS Google Scholar
188.
Cardozo, L., Benness, C. & Abbott, D. Low dose oestrogen prophylaxis for recurrent urinary tract infections in elderly women. Br. J. Obstetr. Gynaecol. 105, 403–407 (1998).
Show context for reference 188
CASArticle Google Scholar
189.
Kirkengen, A. L. et al. Oestriol in the prophylactic treatment of recurrent urinary tract infections in postmenopausal women. Scand. J. Prim. Health Care 10, 139–142 (1992).
Show context for reference 189
CASPubMedArticle Google Scholar
190.
Ouslander, J. G. et al. Effects of oral estrogen and progestin on the lower urinary tract among female nursing home residents. J. Am. Geriatr. Soc. 49, 803–807 (2001).
Show context for reference 190
CASPubMedArticle Google Scholar
191.
Perrotta, C., Aznar, M., Mejia, R., Albert, X. & Ng, C. W. Oestrogens for preventing recurrent urinary tract infection in postmenopausal women. Cochrane Database Syst. Rev. 2, CD005131 (2008).
Show context for reference 191
Google Scholar
192.
Raz, R. et al. Effectiveness of estriol-containing vaginal pessaries and nitrofurantoin macrocrystal therapy in the prevention of recurrent urinary tract infection in postmenopausal women. Clin. Infect. Dis. 36, 1362–1368 (2003).
Show context for reference 192
CASPubMedArticle Google Scholar
193.
Suckling, J., Lethaby, A. & Kennedy, R. Local oestrogen for vaginal atrophy in postmenopausal women. Cochrane Database Syst. Rev. 4, CD001500 (2006).
Show context for reference 193
Google Scholar
194.
Eriksen, B. A randomized, open, parallel-group study on the preventive effect of an estradiol-releasing vaginal ring (Estring) on recurrent urinary tract infections in postmenopausal women. Am. J. Obstetr. Gynecol. 180, 1072–1079 (1999).
Show context for reference 194
CASArticle Google Scholar
195.
Xu, R., Wu, Y. & Hu, Y. [Prevention and treatment of recurrent urinary system infection with estrogen cream in postmenopausal women]. Zhonghua Fu Chan Ke Za Zhi 36, 531–533 (2001).
Show context for reference 195
CASPubMed Google Scholar
196.
Parsons, C. L., Boychuk, D., Jones, S., Hurst, R. & Callahan, H. Bladder surface glycosaminoglycans: an epithelial permeability barrier. J. Urol. 143, 139–142 (1990).
Show context for reference 196
CASPubMedArticle Google Scholar
197.
Parsons, C. L., Pollen, J. J., Anwar, H., Stauffer, C. & Schmidt, J. D. Antibacterial activity of bladder surface mucin duplicated in the rabbit bladder by exogenous glycosaminoglycan (sodium pentosanpolysulfate). Infect. Immun. 27, 876–881 (1980).
Show context for reference 197
CASPubMedPubMed Central Google Scholar
198.
Parsons, C. L., Greenspan, C. & Mulholland, S. G. The primary antibacterial defense mechanism of the bladder. Invest. Urol. 13, 72–78 (1975).
Show context for reference 198
CASPubMed Google Scholar
199.
Ruggieri, M. R., Hanno, P. M. & Levin, R. M. The effects of heparin on the adherence of five species of urinary tract pathogens to urinary bladder mucosa. Urol. Res. 12, 199–203 (1984).
Show context for reference 199
CASPubMedArticle Google Scholar
200.
Parsons, C. L. The role of the urinary epithelium in the pathogenesis of interstitial cystitis/prostatitis/urethritis. Urology 69, 9–16 (2007).
Show context for reference 200
PubMedArticle Google Scholar
201.
Cicione, A. et al. Restoring the glycosaminoglycans layer in recurrent cystitis: experimental and clinical foundations. Int. J. Urol. 21, 763–768 (2014).
Show context for reference 201
PubMedArticle Google Scholar
202.
Lee, D. G. et al. Preventive effects of hyaluronic acid on Escherichia coli-induced urinary tract infection in rat. Urology 75, 949–954 (2010).
Show context for reference 202
PubMedArticle Google Scholar
203.
Hauser, P. J. et al. Restoring barrier function to acid damaged bladder by intravesical chondroitin sulfate. J. Urol. 182, 2477–2482 (2009).
Show context for reference 203
CASPubMedArticlePubMed Central Google Scholar
204.
Yildiz, N. et al. Intravesical hyaluronic acid treatment improves bacterial cystitis and reduces cystitis-induced hypercontractility in rats. Int. J. Urol. 22, 598–603 (2015).
Show context for reference 204
CASPubMedArticle Google Scholar
205.
Tasdemir, S. et al. Intravesical hyaluronic acid and chondroitin sulfate alone and in combination for urinary tract infection: assessment of protective effects in a rat model. Int. J. Urol. 19, 1108–1112 (2012).
Show context for reference 205
CASPubMedArticle Google Scholar
206.
Nishimura, M. et al. Role of chondroitin sulfate-hyaluronan interactions in the viscoelastic properties of extracellular matrices and fluids. Biochim. Biophys. Acta 1380, 1–9 (1998).
Show context for reference 206
CASPubMedArticle Google Scholar
207.
Freissler, E., Meyer auf der Heyde, A., David, G., Meyer, T. F. & Dehio, C. Syndecan-1 and syndecan-4 can mediate the invasion of OpaHSPG-expressing Neisseria gonorrhoeae into epithelial cells. Cell. Microbiol. 2, 69–82 (2000).
Show context for reference 207
CASPubMedArticle Google Scholar
208.
Laquerre, S. et al. Heparan sulfate proteoglycan binding by herpes simplex virus type 1 glycoproteins B and C, which differ in their contributions to virus attachment, penetration, and cell-to-cell spread. J. Virol. 72, 6119–6130 (1998).
Show context for reference 208
CASPubMedPubMed Central Google Scholar
209.
Constantinides, C. et al. Prevention of recurrent bacterial cystitis by intravesical administration of hyaluronic acid: a pilot study. BJU Int. 93, 1262–1266 (2004).
Show context for reference 209
CASPubMedArticle Google Scholar
210.
Lipovac, M. et al. Prevention of recurrent bacterial urinary tract infections by intravesical instillation of hyaluronic acid. Int. J. Gynaecol. Obstetr. 96, 192–195 (2007).
Show context for reference 210
CASArticle Google Scholar
211.
Damiano, R. et al. Prevention of recurrent urinary tract infections by intravesical administration of hyaluronic acid and chondroitin sulphate: a placebo-controlled randomised trial. Eur. Urol. 59, 645–651 (2011).
Show context for reference 211
CASPubMedArticle Google Scholar
212.
De Vita, D. & Giordano, S. Effectiveness of intravesical hyaluronic acid/chondroitin sulfate in recurrent bacterial cystitis: a randomized study. Int. Urogynecol J. 23, 1707–1713 (2012).
Show context for reference 212
PubMedArticle Google Scholar
213.
Cicione, A. et al. Intravesical treatment with highly-concentrated hyaluronic acid and chondroitin sulphate in patients with recurrent urinary tract infections: results from a multicentre survey. Can. Urol. Assoc. J. 8, E721–E727 (2014).
Show context for reference 213
PubMedArticlePubMed Central Google Scholar
214.
Gugliotta, G. et al. Is intravesical instillation of hyaluronic acid and chondroitin sulfate useful in preventing recurrent bacterial cystitis? A multicenter case control analysis. Taiwan J. Obstet. Gynecol. 54, 537–540 (2015).
Show context for reference 214
PubMedArticle Google Scholar
215.
Torella, M. et al. Intravesical therapy in recurrent cystitis: a multi-center experience. J. Infect. Chemother. 19, 920–925 (2013).
Show context for reference 215
CASPubMedArticle Google Scholar
216.
Ciani, O. et al. Intravesical administration of combined hyaluronic acid (HA) and chondroitin sulfate (CS) for the treatment of female recurrent urinary tract infections: a European multicentre nested case-control study. BMJ Open 6, e009669 (2016).
Show context for reference 216
PubMedArticlePubMed Central Google Scholar
217.
De Vita, D., Antell, H. & Giordano, S. Effectiveness of intravesical hyaluronic acid with or without chondroitin sulfate for recurrent bacterial cystitis in adult women: a meta-analysis. Int. Urogynecol J. 24, 545–552 (2013).
Show context for reference 217
PubMedArticle Google Scholar
218.
Chan, C. Y., St John, A. L. & Abraham, S. N. Mast cell interleukin-10 drives localized tolerance in chronic bladder infection. Immunity 38, 349–359 (2013).
Show context for reference 218
CASPubMedArticlePubMed Central Google Scholar
219.
Brumbaugh, A. R. & Mobley, H. L. Preventing urinary tract infection: progress toward an effective Escherichia coli vaccine. Expert Rev. Vaccines 11, 663–676 (2012).
Show context for reference 219
CASPubMedArticlePubMed Central Google Scholar
220.
Schmidhammer, S. et al. An Escherichia coli-based oral vaccine against urinary tract infections potently activates human dendritic cells. Urology 60, 521–526 (2002).
Show context for reference 220
PubMedArticle Google Scholar
221.
Van Pham, T., Kreis, B., Corradin-Betz, S., Bauer, J. & Mauel, J. Metabolic and functional stimulation of lymphocytes and macrophages by an Escherichia coli extract (OM-89): in vitro studies. J. Biol. Response Mod. 9, 231–240 (1990).
Show context for reference 221
PubMed Google Scholar
222.
Ha, U. S. & Cho, Y. H. Immunostimulation with Escherichia coli extract: prevention of recurrent urinary tract infections. Int. J. Antimicrob. Agents 31, S63–S67 (2008).
Show context for reference 222
CASPubMedArticle Google Scholar
223.
Huber, M., Baier, W., Serr, A. & Bessler, W. G. Immunogenicity of an E. coli extract after oral or intraperitoneal administration: induction of antibodies against pathogenic bacterial strains. Int. J. Immunopharmacol. 22, 57–68 (2000).
Show context for reference 223
CASPubMedArticle Google Scholar
224.
Lee, S. J., Kim, S. W., Cho, Y. H. & Yoon, M. S. Anti-inflammatory effect of an Escherichia coli extract in a mouse model of lipopolysaccharide-induced cystitis. World J. Urol. 24, 33–38 (2006).
Show context for reference 224
PubMedArticle Google Scholar
225.
Wagenlehner, F. M. et al. A randomized, double-blind, parallel-group, multicenter clinical study of Escherichia coli-lyophilized lysate for the prophylaxis of recurrent uncomplicated urinary tract infections. Urol. Intern. 95, 167–176 (2015).
Show context for reference 225
Article Google Scholar
226.
Naber, K. G., Cho, Y. H., Matsumoto, T. & Schaeffer, A. J. Immunoactive prophylaxis of recurrent urinary tract infections: a meta-analysis. Int. J. Antimicrob. Agents 33, 111–119 (2009).
Show context for reference 226
CASPubMedArticle Google Scholar
227.
Bonkat, G. et al. European Association of Urology Guidelines on urological infections. EAU https://uroweb.org/guideline/urological-infections/ (2018).
Show context for reference 227
228.
Das, P. Vaginal vaccine for recurrent urinary-tract infections. Lancet Infect. Dis. 2, 68 (2002).
Show context for reference 228
PubMedArticle Google Scholar
229.
Hopkins, W. J., Elkahwaji, J., Beierle, L. M., Leverson, G. E. & Uehling, D. T. Vaginal mucosal vaccine for recurrent urinary tract infections in women: results of a phase 2 clinical trial. J. Urol. 177, 1349–1353 (2007).
Show context for reference 229
PubMedArticle Google Scholar
230.
Uehling, D. T., Hopkins, W. J., Elkahwaji, J. E., Schmidt, D. M. & Leverson, G. E. Phase 2 clinical trial of a vaginal mucosal vaccine for urinary tract infections. J. Urol. 170, 867–869 (2003).
Show context for reference 230
PubMedArticle Google Scholar
231.
Benito-Villalvilla, C. et al. MV140, a sublingual polyvalent bacterial preparation to treat recurrent urinary tract infections, licenses human dendritic cells for generating Th1, Th17, and IL-10 responses via Syk and MyD88. Mucosal Immunol. 10, 924–935 (2017).
Show context for reference 231
CASPubMedArticle Google Scholar
232.
Lorenzo-Gomez, M. F. et al. Comparison of sublingual therapeutic vaccine with antibiotics for the prophylaxis of recurrent urinary tract infections. Frontiers Cell. Infect. Microbiol. 5, 50 (2015).
Show context for reference 232
Google Scholar
233.
Yang, B. & Foley, S. First experience in the UK of treating women with recurrent urinary tract infections with the bacterial vaccine Uromune®. BJU Int. 121, 289–292 (2018).
Show context for reference 233
PubMedArticle Google Scholar
234.
Lorenzo-Gomez, M. F. et al. Evaluation of a therapeutic vaccine for the prevention of recurrent urinary tract infections versus prophylactic treatment with antibiotics. Int. Urogynecol J. 24, 127–134 (2013).
Show context for reference 234
CASPubMedArticle Google Scholar
235.
US National Library of Medicine. ClinicalTrials.gov https://clinicaltrials.gov/ct2/show/NCT02543827. (2018).
Show context for reference 235
236.
Marinova, S. et al. Cellular and humoral systemic and mucosal immune responses stimulated by an oral polybacterial immunomodulator in patients with chronic urinary tract infections. Int. J. Immunopathol. Pharmacol. 18, 457–473 (2005).
Show context for reference 236
CASPubMedArticle Google Scholar
237.
Langermann, S. et al. Vaccination with FimH adhesin protects cynomolgus monkeys from colonization and infection by uropathogenic Escherichia coli. J. Infect. Dis. 181, 774–778 (2000).
Show context for reference 237
CASPubMed Google Scholar
238.
Dupuis, M. et al. Dendritic cells internalize vaccine adjuvant after intramuscular injection. Cell. Immunol. 186, 18–27 (1998).
Show context for reference 238
CASPubMedArticle Google Scholar
239.
Asadi Karam, M. R., Oloomi, M., Mahdavi, M., Habibi, M. & Bouzari, S. Vaccination with recombinant FimH fused with flagellin enhances cellular and humoral immunity against urinary tract infection in mice. Vaccine 31, 1210–1216 (2013).
Show context for reference 239
CASPubMedArticle Google Scholar
240.
Roberts, J. A. et al. Antibody responses and protection from pyelonephritis following vaccination with purified Escherichia coli PapDG protein. J. Urol. 171, 1682–1685 (2004).
Show context for reference 240
CASPubMedArticlePubMed Central Google Scholar
241.
Goluszko, P. et al. Vaccination with purified Dr Fimbriae reduces mortality associated with chronic urinary tract infection due to Escherichia coli bearing Dr adhesin. Infect. Immun. 73, 627–631 (2005).
Show context for reference 241
CASPubMedArticlePubMed Central Google Scholar
242.
Flores-Mireles, A. L., Pinkner, J. S., Caparon, M. G. & Hultgren, S. J. EbpA vaccine antibodies block binding of Enterococcus faecalis to fibrinogen to prevent catheter-associated bladder infection in mice. Sci. Transl Med. 6, 254ra127 (2014).
Show context for reference 242
PubMedArticleCASPubMed Central Google Scholar
243.
Brumbaugh, A. R., Smith, S. N. & Mobley, H. L. Immunization with the yersiniabactin receptor, FyuA, protects against pyelonephritis in a murine model of urinary tract infection. Infect. Immun. 81, 3309–3316 (2013).
Show context for reference 243
CASPubMedArticlePubMed Central Google Scholar
244.
van den Dobbelsteen, G. P. et al. Immunogenicity and safety of a tetravalent E. coli O-antigen bioconjugate vaccine in animal models. Vaccine 34, 4152–4160 (2016).
Show context for reference 244
PubMedArticleCAS Google Scholar
245.
Huttner, A. et al. Safety, immunogenicity, and preliminary clinical efficacy of a vaccine against extraintestinal pathogenic Escherichia coli in women with a history of recurrent urinary tract infection: a randomised, single-blind, placebo-controlled phase 1b trial. Lancet Infect. Dis. 17, 528–537 (2017).
Show context for reference 245
CASPubMedArticle Google Scholar
246.
Darouiche, R. O. et al. Multicenter randomized controlled trial of bacterial interference for prevention of urinary tract infection in patients with neurogenic bladder. Urology 78, 341–346 (2011).
Show context for reference 246
PubMedArticle Google Scholar
247.
Sunden, F., Hakansson, L., Ljunggren, E. & Wullt, B. Escherichia coli 83972 bacteriuria protects against recurrent lower urinary tract infections in patients with incomplete bladder emptying. J. Urol. 184, 179–185 (2010).
Show context for reference 247
PubMedArticle Google Scholar
248.
Koves, B. et al. Rare emergence of symptoms during long-term asymptomatic Escherichia coli 83972 carriage without an altered virulence factor repertoire. J. Urol. 191, 519–528 (2014).
Show context for reference 248
PubMedArticleCAS Google Scholar
Download references
Acknowledgements
Reviewer information
Nature Reviews Urology thanks T. J. Hannan, F. Wagenlehner and the other anonymous reviewer(s) for their contribution to the peer review of this work.
Author information
Affiliations
Department of Urology, Guy’s and St Thomas’ NHS Foundation Trust, London, UK
Néha Sihra, Rhana Zakri, Arun Sahai & Sachin Malde
Department of Infectious Diseases, Guy’s and St Thomas’ NHS Foundation Trust, London, UK
Anna Goodman
Contributions
N.S., A.G., R.Z., A.S. and S.M. researched data for the article. S.M. made substantial contributions to discussions of content. All authors wrote the manuscript, and S.M. reviewed and edited the manuscript before submission.
Competing interests
N.S., A.G. and R.Z. declare no competing interests. A.S. has received an unrestricted educational grant, is an adviser to and has received speaker fees from Allergan Ltd. and has received monies from Medtronic for promotional purposes. S.M. has received monies from Medtronic for promotional purposes.
Corresponding author
Correspondence to Sachin Malde.
Rights and permissions
To obtain permission to re-use content from this article visit RightsLink.
Phytochemical Screening and in-vitro Antimicrobial Activity of Citharexylum spinosum L. (Verbenaceae)
January 2018
DOI: 10.21276/ijprhs.2018.04.19
Dhanya ShreeArbin AyeshaSaema Noorain
Sahana B.K
Citations
Abstract
Objectives: The present study was conducted to evaluate antibacterial and antifungal activity of leaf and bark extract of Citharexylum spinosum L. (Verbenaceae). Methods: Extraction of powdered leaf and bark material was carried out by maceration process. The extracts were screened for detection of phytochemicals by standard phytochemical analyses. Antibacterial and antifungal activities were evaluated by agar well diffusion and poisoned food technique, respectively. Results: Leaf extracts showed marked antibacterial activity than bark extract. Both extracts showed highest and least inhibitory activity against Bacillus cereus and Shigella flexneri, respectively. Both extracts caused >50% inhibition of mycelial growth of two seed-borne fungi viz. Aspergillus niger and Bipolaris sp. Preliminary phytochemical analysis detected the presence of saponins, alkaloids, flavonoids, sterols and triterpenoids in both the extracts. Conclusions: The plant C. spinosum can be used to treat infections caused by pathogenic bacteria and to manage seed-borne fungal diseases of plants.
Tuesday, 30 October 2018
New Report: $25 Million Koch-funded Think Tank at Utah State University Targets Public Lands
OCTOBER 29, 2018R.T. FITCH
https://rtfitchauthor.com/2018/10/29/new-report-25-million-koch-funded-think-tank-at-utah-state-university-targets-public-lands/
Source: Center for Biological Diversity
“OUR PUBLIC UNIVERSITIES ARE MEANT TO WORK FOR THE COMMON GOOD, NOT FOR CORPORATE PROFIT,”
Photo by Carol Walker
SALT LAKE CITY— A new Koch-funded research center at Utah State University is taking over the work of a private anti-public-lands think tank, leveraging the public university’s name and credibility for projects that stand to benefit Koch Industries, according to a new report released today by the Center for Biological Diversity and UnKoch My Campus.
The Center for Growth and Opportunity is carrying on the work of the Logan-based Strata Policy, a Koch-funded advocacy group. Research and policy work at the Center, established at Utah State in 2017 with a $25 million matching donation from the Charles Koch Foundation, stands to boost profits for Koch Industries and others in the Koch philanthropic network, the report found.
“Our public universities are meant to work for the common good, not for corporate profit,” said Samantha Parsons of UnKoch My Campus. “Allowing a corporate donor to leverage the university’s resources and brand to grow its self-interested advocacy project is anathema to that mission.”
The groups are calling on Utah State to rescind its agreement with the Koch Foundation and disaffiliate itself from the Center for Growth and Opportunity.
Koch Industries is involved in oil and gas extraction, transportation and refining, cattle grazing, logging and other activities on public lands. The Koch Foundation has spent some $200 million to support faculty and centers on more than 300 U.S. higher-education campuses. The foundation’s gift to Utah State is its largest to a western university.
“The Koch Foundation’s insidious gift to Utah State is really a big present for Koch Industries,” said Ryan Beam of the Center for Biological Diversity. “There’s a grave risk to both public lands and public education if a corporation like Koch Industries can buy itself a think tank at Utah State. Public lands and public universities are for the people, not for private interest.”
The Center for Growth and Opportunity’s work includes policy research and commentary supporting public lands privatization and the rollback of environmental protections. Most of its employees worked for Strata, and the Center is continuing much of the private think tank’s anti-public-lands work, the report found.
Other findings show that the Center for Growth and Opportunity:
Lacks university oversight;
Is controlled by a pre-installed board including Koch-affiliated officials;
Has veto power over the hiring of six new Utah State faculty members.
Strata and the Center are connected to many of the country’s most prominent anti-public-lands figures, including members of Utah’s congressional delegation and state legislature and members of the far-right militant arm of the anti-public-lands movement.
https://www.biologicaldiversity.org/news/press_releases/2018/Insidious-Gift-report-findings-10-23-2018.php?fbclid=IwAR37m9AiiwuMzlOozsipQnpQMh73dINOLUMlf9xNsWrLVwwh5NP3b3NPxtE
s.com.
Study Your Grievances
by Emma Spruce, Jacob Breslow & Tomás Ojeda
http://blogs.lse.ac.uk/gender/2018/10/29/study-your-grievances/
Recently, Aero Magazine published an essay by Helen Pluckrose, James A. Lindsay, and Peter Boghossian titled “Academic Grievance Studies and the Corruption of Scholarship”. In it, Pluckrose et al. unveiled a year-long project in which they sought to expose the ‘corruption’ of ‘grievance studies’ by publishing hoax articles in interdisciplinary feminist, queer, critical race journals.
There have already been several thoughtful responses to this ‘hoax’, however some points require emphasis and elaboration. Firstly, it must be said that Pluckrose et al. are not writing in a vacuum: theirs is not an apolitical critique of academic publishing, but must be viewed in the context of a wider history of attacks on gender, sexuality, and critical race studies. The repeated engagement with questions of sexual violence in their papers do not coincidentally emerge alongside the #MeToo movement. Secondly, the current reporting on the hoax overwhelmingly fails to do due diligence. Pluckrose et al. are routinely taken at their word, with media outlets apparently failing to read and make independent judgements about the four articles that were published (out of twenty they attempted). Finally, only few responses to the ‘hoax’ challenge its claim to be ‘successful’.
Seeking to intervene in the way this ‘hoax’ has been taken up, in this post we briefly challenge three of the main grievances that Pluckrose et al. share in their exposé of the ‘hoax’. These are: 1) the abandonment of objectivity and truth in favour of politics, 2) the alleged lack of rigour of academic journals in the social sciences and humanities, and 3) the scholarly community’s verification and endorsement of the ‘absurd and horrible’ arguments Pluckrose et al. so gleefully wrote.
Brown frame of 5 x 5 boxes, top rows have letters inside spelling out word 'objectivity'
Photo credit: ‘Objectivity by Sol LeWitt’ by Cliff
Grievance 1 – objectivity and politicization
One of the repeated grievances that Pluckrose et al. launch is that academic scholarship (specifically within gender studies, sexuality studies, and critical race studies) has abandoned objectivity and truth in favour of ideology and politics. In a sense, they are correct in this; ‘subjectivity’ is indeed understood as more rigorous than ‘objectivity,’ and the fields in which we work are fundamentally political and politicized. Where they err, however, is in thinking that these characteristics of our fields are problems.
Feminist epistemologists have been debating ‘objectivity’ for multiple decades (Bar On 1993; Code 1993, 2014; Collins 2000; Haraway 1988; Harding 1986, 1993, etc. etc.).[1] In the mid 1980s, Acker, Barry and Esseveld (1983: 427), for example, argued that objectivity should be understood not as a practical or obtainable position, but rather as an illusion. In their words, the idea of objectivity is to ‘remove the particular point of view of the observer from the research process so that the results will not be biased by the researcher’s subjectivity.’ This ‘ideal’ version of objectivity, however, as Smith (1977) argues, can only be possible if the knower is understood as an abstract being and the ‘known’ (the object of research) is understood as without agency. And yet knowers, as feminist epistemologists have argued for decades, are not ‘abstract’ at all, ‘but [are] member[s] of definite social categor[ies] occupying definite positions within the society’ (Smith 1974: 16-17).
The production and validation of knowledge does not take place regardless of context and history. Claims to objective truth are evaluated by institutions that have historically been occupied by people in privileged positions. That objective truth continues to be evaluated by people with “partial and perverse” (Hartsock 1983) perspectives raises important questions about the limitations of ‘objectivity’ and the types of knowledges (as well as knowers) that are deemed legitimate: Whose experiences are valued? On what grounds? By whom? For whom do the ‘blind principles of neutrality’ apply (cf. Williams 1991)? It is in response to these questions that feminists have debated the merits of situated knowledges, and the importance of marginal voices.
Put simply, we would agree that our research and teaching is political and politicized. This politicization, however, is not a flaw: it is necessary and important. While we may not agree with one another (more on that in a moment), our fields of study are not neutral. The purpose of our fields is to address, understand, and transform injustices of various kinds. To draw upon Hartsock (1997: 370), ‘the search for truth is not at all the way to understand’ feminist, queer, trans, critical race scholarship; ‘the point, most fundamentally, is to understand power relations… [and] the point of understanding power relations is to change them.’ It is not a shocking revelation, in other words, to suggest that our fields are political. That said, as we turn to next, the suggestion that by virtue of being political, our fields somehow share a univocal version of what ‘gender,’ ‘race,’ or ‘sexuality’ mean (let alone sexism, racism, or heteronormativity), is a blatant mischaracterisation.
Grievance 2 – knowledge production and scientific truths
Pluckrose et al. argue that ‘grievance studies’ have contributed to the politicised corruption of scholarship. “The peer reviewer system, which should filter out the biases that enable these problems to grow and gain influence,” they write, “is inadequate within grievance studies.” This framing of the ‘problem,’ however, actually misunderstands and distorts the generosity of peer reviewers, renders peer-reviewed journals as ‘the absolute gold standard of knowledge production’, and ignores all other sites of knowledge production. For the ‘hoax’ authors, academic journals work as the final repository of truth within a scientific community that they imagine as a coherent, consensual and idealised abstraction – but this is simply not the case.
Criticizing grievance studies’ alleged lack of rigour, they fail to address other sources of knowledge that also shape the world they imagine as being under threat, and that are outside the scope of the academic journals they targeted (Feminists do speak and publish in languages beyond English, you know). While rather obvious to those of us who spend our days teaching, ‘conferencing’, and talking (to colleagues, policy-makers, activists, practitioners and anyone else who wants to be in conversation), knowledge is also produced beyond journal publications. To attack journals as symptomatic is to mistake one part of the field for its entirety.
Their claim that there is something particularly wrong about ‘grievance studies’ also entails some spectacular ‘looking away’ because, surprise!, similar critiques have been also tested in other scientific fields (see, for instance, this blog post for the case of psychology). Thus, if anything, what the ‘hoax’ reveals as the problem in academic publishing is less related to the supposed flaws of ‘grievance studies’, and more with how Pluckrose et al. imagine the peer-reviewed system works. Peer review is not simply about checks and balances, it is a process which relies on the principles of good faith and honesty, something that they intentionally corrupted. Yes, peer review is a means of enhancing the rigor of fields, but its effect is not to mark any and every peer-reviewed article as unquestionable dogma. Having an article published in a feminist journal does not mean that its argument has become accepted by all feminists.
Academic journals, and journals with anti-racist, anti-sexist (etc.) ideological commitments in particular, are sites of struggles over knowledge that we understand as unfinished-testing sites: to publish is to invite response, dissent and critical engagement, not to have the final word. This is manifest in the discussion of standpoint theory, which Pluckrose et al. misrepresent and hold in particular ire, (see grievance 1). Curiously, they suggest feminist academia encourages ‘an epistemological and moral relativism’, yet critique feminist thought for its unique and pernicious dogmatism. If you turn to the ‘comments and reply’ section of Signs Journal special issue on standpoint theory, you’ll see the range of perspectives and disagreements feminists have had about its successes and flaws.
Grievance 3 – ‘absurd and horrible’ theses
At the centre of the Pluckrose et al. ‘hoax’ is a cry of outrage: how could such “outlandish or intentionally broken” papers get published? In fact, given the “shoddy methodologies” “dubious ethical implications” and “considerable silliness”, modeled by these papers, they should have gone straight into the shredder. That this wasn’t the case; that a few articles were published, and that even more of them were given feedback, is cold hard evidence that in ‘grievance studies’ “just about anything can be made to work, so long as it falls within the moral orthodoxy and demonstrates understanding of the existing literature”.
In other words, Pluckrose et al. suggest that worthless and irresponsible articles will be published in ‘grievance studies’ if they have the ‘right’ politics. Leaving aside their frankly ridiculously narrow representation of feminist politics (writing this blog was testimony to the adage that if you put 3 feminists in a room, you will get 5 opinions), we thought that it was important to actually read the articles that made it through to publication (especially as so little of the media coverage seems to have done so). It turns out that to claim their ‘hoax’ as a success, Pluckrose et al. don’t just have to misrepresent other people’s work, but they also have to misrepresent their own. Here is a closer look at one example:
“Hooters” consists of a (faked) ethnographic study of men who go to restaurants where “scantily-clad, attractive female servers are a defining feature/gimmick”. Pluckrose et al. tell us that it is ridiculous that this article was published because “[t]he data are clearly nonsense and conclusions drawn from it are unwarranted.”
The research, however, claims to be derived from 99 visits that resulted in 10,000 minutes of recorded conversation and over 600 pages of field notes. If this weren’t fictionalised, why would a journal editor or peer reviewer consider this vast amount of data worthless nonsense? After all, the only claims that the article makes from this data are that it offers a description of an understudied site, and that it presents a hypothesis that the particular appeal of Hooters-like restaurants is that they allow men to ‘act out’ ideas of masculinity such as “sexual objectification and male dominance” that are increasingly unacceptable in other social sites.
To some extent this article should be low on publication appeal because it is boring: Feminism has not eradicated sexism – surprise. Gendered hierarchies and capitalist systems reinforce each other – surprise. Masculinity and femininity remain important to many people’s’ sense of self – surprise. But then again, in a context where the US President normalised his description of sexual assault as ‘locker room talk’,[2] surely we do want to gain insights on the versions of masculinity being endorsed in male-dominated spaces?
In their discussion of this article for Aero magazine, Pluckrose et al. suggest that it was published solely because it aligns with an outlandish feminist orthodoxy that “problematize[s] heterosexual men’s attraction to women”. And yet, to argue that male sexual dominance and objectification are neither good for everyone, nor an uncontrollable and universally evident biological expression that society can’t engage doesn’t really seem that outlandish?
Upon closer inspection, it turns out that the article barely makes an ideological point anyway. Instead, it presents itself as a descriptive first-step in a larger project to understand the social conditions that endorse and facilitate male dominance over women. “Hooters” is replete with caveats and a keen awareness of its own limitations (perhaps thanks to the time and effort of very generous peer reviewers). This disjuncture between what they claim these articles say, and what they argue as a point of fact, is symptomatic of their entire project’s lack of ethics.
Conclusion
In a political climate wherein gender, sexuality, and critical race studies are under persistent attack, we feel it’s important to frame this ‘hoax’ as a call to keep studying our ‘grievances,’ with all the interdisciplinary tools we have, and with a fervour, passion and clarity that stands up to the malicious attempts to undermine us.
Pluckrose et al. claim to be concerned with ‘important issues relevant to social justice’: they spent a year producing fictional material to help us understand what social justice really is and how we should address it in our research and broader scholarship. There is, however, no such a thing as a univocal and straight-forward way of understanding what social justice means, especially when contested notions of what count as justice, for whom and in what terms have been at the forefront of historical debates within feminist, queer and critical race studies. These are ongoing debates, ones we must keep having.
In this vein, maybe Pluckrose et al. could spend the next year actually doing the research that they faked. This could, perhaps, contribute towards understanding the dynamics of dominance that they so gleefully — and with apparent ease — spent their time narrating.[3]
image of author Emma SpruceEmma Spruce is a Teaching Fellow in Gender, Sexuality and Human Rights at LSE, where she co-convenes a course on feminist epistemologies with Jacob Breslow. Her research examines the intersections of sexuality, space and place; exploring the movement of sexual politics across scales (from the nation to the neighbourhood), as well as the ways that place and space acquire meaning through narratives of sexuality and gender.
image of author Jacob BreslowJacob Breslow is a Teaching Fellow in Transnational Gender and Sexuality Studies at LSE, where he co-convenes a course on feminist epistemologies with Emma Spruce. He researches contemporary U.S. social justice movements and the ways in which the idea of childhood operates within and against them. Currently, he is working on a book with the University of Minnesota Press, titled: After Childhood: Ambivalence, Belonging, and the Psychic Life of the Child.
Picture of the author Tomás OjedaTomás Ojeda is a PhD candidate at LSE Department of Gender Studies and member of the Engenderings editorial collective. His research examines the political place of Chilean psychology in the making up of the sexual subject of diversity, by analysing the sexual epistemologies at work in the so-called turn to diversity in contemporary clinical practice.
[1] The list of full references is available on the next page.
[2] “I don’t even wait. And when you’re a star, they let you do it. You can do anything. Grab them by the pussy. You can do anything.” (full transcript)
[3] As a side note, did it feel good to write those descriptions of sexual objectification? It definitely did not feel good to read them. And your tone, Pluckrose et al., makes the claim that that the ‘hoax’ is not an ideologically motivated attack difficult to believe.
References
Joan Acker, Kate Barry and Joke Esseveld (1983) “Objectivity and Truth: Problems in Doing Feminist Research” Women’s Studies International Forum. 6(4): 423-435.
Bat-Ami Bar On (1993) “Marginality and Epistemic Privilege” in Linda Alcoff and Elizabeth Potter (eds.) Feminist Epistemologies. New York: Routledge pp. 83-100.
Lorraine Code (1993) “Taking Subjectivity Into Account” in Linda Alcoff and Elizabeth Potter (eds.) Feminist Epistemologies. New York: Routledge pp. 23-57.
Lorraine Code (2014) “Feminist Epistemology and the Politics of Knowledge: Questions of Marginality” in Mary Evans et al. (eds.) The Sage Handbook of Feminist Theory. London: Sage pp. 9-25.
Patricia Hill Collins (2000) Black Feminist Thought: Knowledge, Consciousness, and the Politics of Empowerment. London: Routledge.
Donna Haraway (1988) “Situated Knowledges: The Science Question in Feminism and the Privilege of Partial Perspective” Feminist Studies 14(3): 581-607.
Sandra Harding (1986) The Science Question in Feminism. London: Cornell University Press.
Sandra Harding (1993) “Rethinking Standpoint Epistemology: What is ‘Strong Objectivity’?” in Linda Alcoff and Elizabeth Potter (eds.) Feminist Epistemologies. New York: Routledge pp. 49-82.
Nancy Hartsock (1983) “The Feminist Standpoint: Developing the Ground for a Specifically Feminist Historical Materialism” in Sandra Harding (ed.) Feminism and Methodology: Social Science Issues. Bloomington: Indiana University Press pp. 157-180.
Nancy Hartsock (1997) “Comment on Heckman’s ‘Truth and Method: Feminist Standpoint Theory REvisited’: Truth or Justice?” Signs 22(2): 367-374.
Dorothy Smith (1974) “Women’s Perspective as a Radical Critique of Sociology” Sociological Inquiry 44: 7-13.
Dorothy Smith (1977) “Some Implications of a Sociology for Women” In Nona Glazer and Helen Waehrer (eds.) Woman in a Man-Made World: A Socioeconomic Handbook. Chicago: Rand McNally.
Patricia Williams (1991) The Alchemy of Race and Rights: Diary of a Law Professor. Cambridge: Harvard University Press.
Monday, 29 October 2018
At Ajo y Orégano, Big Flavors Flow From a Small Space
HUNGRY CITY
https://www.nytimes.com/2018/10/26/dining/ajo-y-oregano-review.html?action=click&module=Features&pgtype=Homepage
A Family Affair in the Bronx
10 PhotosView Slide Show ›
Image
Caitlin Ochs for The New York Times
Ajo y OréganoNYT Critic's PickCaribbean, Latin American$1556 White Plains Road, Parkchester347-657-1201
By Ligaya Mishan
Oct. 26, 2018
4
If it’s Friday, there will be rabo encendido, oxtails dark as ink from a simmer in Presidente beer and Brugal rum. This is lunch and event at once, and may explain the crowd that forms before noon on the rainbow-planked porch outside Ajo y Orégano, a tiny gasp of a restaurant in Parkchester, the Bronx, between a tire shop and a barber’s.
On Friday, too, is the promise of pica pollo, Dominican fried chicken in airy golden coats, with seasonings gone deep. Chief among them are the ones pictured on the restaurant’s wooden awning: garlic and oregano, matching the restaurant’s name.
So go on Friday — but then you’ll miss Wednesday and Thursday’s special of berenjenas asadas, eggplant charred over open flame until its insides retreat and cede sovereignty to smoke. The flesh is then mashed in a pot with garlic, tomatoes and, crucially, eggs, the secret to the dish’s louche creaminess.
Image
Platters served during lunch at Ajo y Orégano, in the Bronx.CreditCaitlin Ochs for The New York Times
And what of Saturday and Sunday’s mondongo (tripe soup), Monday’s pernil (roast pork) and Tuesday’s pastelón, layers of fried ripe plantains, ground beef and mozzarella, salty and sweet embracing their differences? Any day you go, the menu is a tease of what might have been.
ADVERTISEMENT
Fortunately, the steam table at the back of the dining room is stocked daily with pollo guisado, chicken stew stained black from sugar thrown in the pan at the start and brought within seconds of a burn. Other regulars are fried sea bass under a drape of coconut milk and sofrito, orange from achiote; and barbecue pork ribs like smoked candy, with meat that gives and gives.
Enver Perez and his younger brother, Jeudy Perez, opened Ajo y Orégano last October. They were children when they left Santo Domingo in the Dominican Republic to live in the Castle Hill section of the Bronx. Their mother, Maritza Reynoso, now works the cash register and makes the house hot sauce; their older brother, Freddy Perez, runs the floor.
The bounty of the steam table, with its helpings of moro (rice and beans) and guandules con coco, pigeon peas enriched with coconut milk and auyama (pumpkin), is supplied by two aunts, Milqueya and Jackeline Reynoso. Food is presented in aluminum pots sized for little hands, the kind that the Reynoso sisters learned to cook with when they were young. But the contents are hardly dainty, and what look like small portions prove to be more than enough.
Yudelkys Paniagua, a veteran of Dominican restaurants in Washington Heights, cooks dishes à la carte, including chimi sliders, a diminutive but still gloriously messy version of the Dominican street burger. Chubby beef patties are stacked with squeaky fried white cheese between ragged-edged tostones: green plantains fried, flattened and fried again, so they’re crisp and chewy at once. The sauce, classic pink mayo-ketchup, gets a dash of fizz and nostalgia from Country Club frambuesa (raspberry) soda, also available by the bottle.
Editors’ Picks
Stone Mountain: The Largest Confederate Monument Problem in the World
Is ‘RuPaul’s Drag Race’ the Most Radical Show on TV?
A ‘Generationally Perpetuated’ Pattern: Daughters Do More Chores
ADVERTISEMENT
Image
Food is presented in aluminum pots sized for little hands, the kind that the chefs learned to cook with when they were children.CreditCaitlin Ochs for The New York Times
Not on the menu but worth asking for is mofongo, plantains fried and broken down in a wooden pilón (mortar), then molded by hand into a giant cup. Once filled, it’s a caldron, aswamp in melted cheese and either mayo-ketchup or garlicky béchamel, with your choice of meat in the depths. Smaller mofonguitos, shaped with a lemon squeezer, fit demurely in ramekins, perhaps a better idea if you don’t want to stagger home.
Spanish is the language and the electric current at Ajo y Orégano, where forks clank over a low throb of salsa, merengue and bachata from two decades past. The walls of the dining room are as green as palms and mounted with crockery and hot pink shutters. Bills come in shoeshine boxes painted with island scenes, of tin-roofed houses slumbering under flamboyant trees.
But the space is too small, which for the crowd growing restive on the porch is a problem. By the end of November, the Perez brothers plan to open a second Ajo y Orégano in Belmont, by the Bronx Zoo. Milqueya will oversee the new kitchen, while Jackeline holds down the fort here.
As it happens, both aunts worked with Enver in the White Plains Road storefront’s previous incarnation as a healthy meal-preparation service. They had minor roles: One was a dishwasher; the other did breakfast. It makes him laugh now. He said, “I had the magic recipe all along.”
Follow NYT Food on Twitter and NYT Cooking on Instagram, Facebook and Pinterest. Get regular updates from NYT Cooking, with recipe suggestions, cooking tips and shopping advice.
Subscribe to Five Weeknight Dishes
Fresh dinner ideas for busy people who want something great to eat, with NYT Cooking recipes sent to you weekly.
SIGN UP
Ajo y OréganoNYT Critic's Pick
1556 White Plains Road
(Guerlain Street)
Parkchester
347-657-1201
ajoyoregano.com
Recommended DishesChimi sliders; mofonguitos; pollo guisado; barbecue pork ribs; rabo encendido (oxtail stew); berenjenas asadas (roasted eggplant).Price$ (inexpensive)OpenDaily for lunch and dinner.
How a Vortex Helps Dandelions Fly
https://www.nytimes.com/video/science/100000006166266/how-a-vortex-helps-dandelions-fly.html?action=click&module=Discovery&pgtype=Homepage
Caryophyllene
BY MICHAEL FREEMANTLE19 OCTOBER 2018
https://www.chemistryworld.com/podcasts/caryophyllene/3009646.article
A biologically active compound from the biblical balm of Gilead, said to ‘heal the sin-sick soul’ and mentioned at the marriage of Prince Harry and Meghan Markle
Ben Valsler
Earlier this week, Kensington Palace announced that here in the UK we have another royal baby to look forward to, due in spring 2019. And here on Chemistry in its element, Mike Freemantle has been thinking back to the happy couple’s big day…
Prince Harry, Duke of Sussex and his wife Meghan, Duchess of Sussex leave from the West Door of St George's Chapel, Windsor Castle, in Windsor on May 19, 2018.
Source: © Ben Stansall - WPA Pool / Getty Images
Prince Harry, Duke of Sussex and his wife Meghan, Duchess of Sussex leave from the West Door of St George's Chapel, Windsor Castle, in Windsor on May 19, 2018.
Michael Freemantle
Cast your mind back to Saturday 19th May this year. That was the day Prince Harry, a member of the British royal family, and American former actor Meghan Markle married. During the wedding ceremony at St George’s Chapel, Windsor Castle, the American bishop Michael Curry delivered a powerful sermon. He quoted lines from a medieval poem and an old African American spiritual that referred to the balm of Gilead:
‘There is a balm in Gilead,
To make the wounded whole.’
In these lines, the balm is employed as a metaphor for the power of love to heal the human spirit. When I heard these lines, I asked myself: what is this balm of Gilead?
Dried twigs and leaves of the plant Commiphora gileadensis, source of Balm of Gilead
Source: By Deror_avi CC BY-SA 3.0, from Wikimedia Commons
I soon discovered that the balm was an oil that had been used since ancient times as a perfume and as an ointment to heal various physical illnesses. The balm was named after the Gilead region of the Arabian peninsula where it was extracted from plants. The region is now part of Jordan.
There are several references to the balm in the Bible, for example, in chapter 37 of the book of Genesis: ‘… behold, a company of Ishmaelites came from Gilead with their camels bearing spicery and balm and myrrh, going to carry it down to Egypt.’
Commiphora gileadensis, botanical illustration
Commiphora gileadensis, botanical illustration
In 2012, a team of scientists in Israel reported the results of research on ‘the biblical balm of Gilead,’ as they called it. Their aim was to study the anti-cancer activity of the oil, which they extracted from a plant with the botanical name Commiphora gileadensis. First of all, they used gas chromatography and mass spectrometry to separate and identify its volatile organic components. They identified 27 components, the most prominent of which was the hydrocarbon β-caryophyllene. It accounted for just over 20 % of the oil. Their study established that the balm prevented the proliferation of tumour cells and that the key ingredient responsible for this activity was β-caryophyllene.
The compound is ubiquitous in nature and generally occurs in mixtures with other organic compounds. Essential oils extracted from lavender, rosemary, hops, cannabis and especially cloves all contain significant amounts of β-caryophyllene. The compound is also present in the oily resins extracted from many species of pine conifers.
Beta caryophyllene
The properties and structure of this naturally-occurring compound have been extensively investigated since the 1830s. However, it was not until 1951 that British organic chemist and chemistry Nobel laureate Sir Derek Barton provided definitive evidence of its molecular structure. The compound has an unusual bicyclic structure for a natural product. Each molecule has a nine-membered ring of carbon atoms, a four-membered ring and two carbon-carbon double bonds. Another chemistry Nobel laureate, the American organic chemist E. J. Corey, reported the total synthesis of the bicyclic hydrocarbon in 1964.
β-Caryophyllene has a spicy woody smell and is generally recognised as a safe dietary supplement and flavouring agent for foods and beverages. Well-documented research studies over recent years have shown that the compound is not only active against cancer but also has a wide array of other medicinal properties. It acts as a pain killer, for example, and also exhibits anti-inflammatory, anti-bacterial and anti-fungal activity.
Last year, another team published a paper on the chemical compositions of essential oils extracted from the stem bark, leaves and fruit of Commiphora gileadensis. The researchers surprisingly found a dearth of β-caryophyllene in the oils, in complete contrast to the findings of the other team, even though both teams had investigated plant samples collected from the same botanical garden in Israel. The second team observed that the chemical compositions of the Commiphora gileadensis essential oils from Israel ‘are markedly different from previously reported samples.’ So how do you account for the difference? The second team concluded that there must be ‘a wide variation of essential oil compositions within the population of this plant.’
The Jordan River border between Israel and Jordan
Source: © Shutterstock
The Jordan River border between Israel and Jordan
And there is another intriguing question here. Did the ancient Ishamaelites really extract their fragrant healing oil from the plant Commiphora gileadensis? There are claims that their precious balm of Gilead was extracted from a different plant – the mastic tree, known scientifically as Pistacia lentiscus. The plant is indigenous to the Mediterranean region including Israel, Jordan and other Middle Eastern countries. It exudes a pleasant-smelling resin with similar health and culinary properties to the Commiphora gileadensis oil.
Whatever the answers to these questions, there can be no doubt about the health and therapeutic benefits of β-caryophyllene, and the balm of Gilead - whatever its composition and source.
Never miss a podcast again!
If you love listening to the chemistry in its element podcast, subscribe today and never miss an episode
Chemistry World
Ben Valsler
That was Mike Freemantle, showing that sometimes science writers can get distracted by chemistry even in the midst of a moving speech at a nationally important wedding. Next week, Kat Arney indicates how misuse of a common, colourful compound can cause catastrophic colonic complaints.
Kat Arney
These imported drinks lacked the deep red colour the people expected, so the authorities decided to add a dash of phenolphthalein to the wine supplies to redden them up. It being the early 1900s, nobody had thought to test whether it was actually safe to use as a food additive first, which might have avoided the unpleasant result: a mass outbreak of diarrhoea.
Ben Valsler
Join Kat next time with the pH indicator you almost certainly used in high school. Until then, you can find all of our podcasts at chemistryworld.com/podcasts, and you can get in touch with any questions or comments – email chemistryworld@rsc.org or tweet @chemistryworld. Thanks for listening, I’m Ben Valsler.
TOPICS
Subscribe to:
Posts (Atom)