Safety of Cranberries in the Prevention of Urinary Tract Infection
Analysis
DOI:
https://doi.org/10.55175/cdk.v52i3.1477Keywords:
Cranberries, PAC, prevention of urinary tract infection, proanthyocyanidinAbstract
Urinary tract infection is a common disease with high recurrence. UTI is usually treated with antibiotics, however high bacteria resistance towards first-line antibiotic treatment is becoming a health issue. Cranberries have been shown to prevent the adhesion of bacteria to host cell, hence preventing UTI. This systematic review aimed to determine the effectivity and safety of cranberry for prevention of urinary tract infection. Systematic Review was done with search engine from Google Scholar, PubMed, and ScienceDirect, starting with forming clinical question using PICO framework. Studies included was selected based on inclusion and exclusion criteria. The outcomes extracted from each study are the effectiveness and safety of cranberries in UTI prevention. Eight studies were reviewed, seven studies concluded that cranberries can significantly
prevent UTI, while 1 study found that the result was not significant. Three studies reported minimal adverse effect in a small percentage of patients. Cranberries can reduce the incidence of recurrent UTI with minimal adverse effect. PACs (proanthocyanidins) in cranberries can prevent bacteria adhesion, therefore preventing colonization of the bacteria in the urinary tract. Further research on dose and duration are required.
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Bonkat G, Bartoletti R, Bruyere F, Cai T, Geerlings S, Koves B, et al. EAU guideline on urological infection. Eur Assoc Urol[Internet]. 2023:1-84. Available from: https://d56bochluxqnz.cloudfront.net/documents/full-guideline/EAU-Guidelines-on-Urological-infections-2023.pdf.
Liu H, Howell AB, Zhang DJ, Khoo C. A randomized, double-blind, placebo-controlled pilot study to assess bacterial anti-adhesive activity in human urine following consumption of a cranberry supplement. Food Funct. 2019;10(12):7645–52. DOI: 10.1039/c9fo01198f.
Jeitler M, Michalsen A, Schwiertz A, Kessler CS, Koppold-Liebscher D, Grasme J, et al. Effects of a supplement containing a cranberry extract on recurrent urinary tract infections and intestinal microbiota: A prospective, uncontrolled exploratory study. J Integr Complement Med. 2022;28(5):399–406. DOI: 10.1089/jicm.2021.0300.
Shah C, Baral R, Bartaula B, Shrestha LB. Virulence factors of uropathogenic Escherichia coli (UPEC) and correlation with antimicrobial resistance. BMC Microbiol. 2019;19(1):204. DOI: 10.1186/s12866-019-1587-3.
Konesan J, Liu L, Mansfield KJ. The clinical trial outcomes of cranberry, D-mannose and NSAIDs in the prevention or management of uncomplicated urinary tract infections in women: A systematic review. Pathogens. 2022; 11(12):1471. DOI: 10.3390/pathogens11121471.
Mooren ES, Liefers WJ, De Leeuw JW. Cranberries after pelvic floor surgery for urinary tract infection prophylaxis: A randomized controlled trial. Neurourol Urodyn. 2020; 39(5):1543–9. doi: 10.1002/nau.24391.
Gbinigie O, Allen J, Williams N, Moore M, Hay AD, Heneghan C, et al. Does cranberry extract reduce antibiotic use for symptoms of acute uncomplicated urinary tract infections (CUTI)? A feasibility randomised trial. BMJ Open 2021;11(2):e046791. DOI: 10.1136/bmjopen-2020-046791.
Maki KC, Kaspar KL, Khoo C, Derrig LH, Schild AL, Gupta K. 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. 2016;103(6):1434–42. DOI: 10.3945/ajcn.116.130542.
Vostalova J, Vidlar A, Simanek V, Galandakova A, Kosina P, Vacek J, et al. Are high proanthocyanidins key to cranberry efficacy in the prevention of recurrent urinary tract infection? Phytother Res. 2015;29(10):1559–67. DOI: 10.1002/ptr.5427.
Caljouw MAA, Van Den Hout WB, Putter H, Achterberg WP, Cools HJM, Gussekloo J. 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. 2014;62(1):103–10. DOI: 10.1111/jgs.12593.
Foxman B, Cronenwett AEW, Spino C, Berger MB, Morgan DM. Cranberry juice capsules and urinary tract infection after surgery: Results of a randomized trial. Am J Obstet Gynecol. 2015;213(2):194.e1-194.e8. DOI: 10.1016/j.ajog.2015.04.003.
Bruyere F, Azzouzi AR, Lavigne JP, Droupy S, Coloby P, Game X, et al. A multicenter, randomized, placebo-controlled study evaluating the efficacy of a combination of propolis and cranberry (Vaccinium macrocarpon) (DUAB®) in preventing low urinary tract infection recurrence in women complaining of recurrent cystitis. Urol Int. 2019;103(1):41–8. DOI: 10.1159/000496695.
Ledda A, Belcaro G, Dugall M, Feragalli B, Riva A, Togni S, et al. Cranberry extract in elderly with BPH associated with urinary tract infections. Eur Rev Med Pharmacol Sci. 2016;20:5205–9.
Koradia P, Kapadia S, Trivedi Y, Chanchu G, Harper A. Probiotic and cranberry supplementation for preventing recurrent uncomplicated urinary tract infections in premenopausal women: A controlled pilot study. Expert Rev Anti Infect Ther. 2019; 17(9): 733–40. DOI: 10.1080/14787210.2019.1664287.
Whelan S, Lucey B, Finn K. Uropathogenic Escherichia coli (UPEC)-associated urinary tract infections: The molecular basis for challenges to effective treatment. Microorganisms. 2023;11(9):2169. DOI: 10.3390/microorganisms11092169.
Terlizzi ME, Gribaudo G, Maffei ME. Uropathogenic Escherichia coli (UPEC) infections: Virulence factors, bladder responses, antibiotic, and non-antibiotic antimicrobial strategies. Front Microbiol. 2017;8:1566. DOI: 10.3389/fmicb.2017.01566.
Dong B, Zimmerman R, Dang L, Pillai G. Cranberry for the prevention and treatment of non-complicated urinary tract infections. SOJ Pharm Sci. 2018;6(1):1-9. DOI: 10.15226/2374-6866/6/1/00193.
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. 2017;198(3):614–21. DOI: 10.1016/j.juro.2017.03.078.
Rauf A, Imran M, Abu-Izneid T, Iahtisham-Ul-Haq, Patel S, Pan X, et al. Proanthocyanidins: A comprehensive review. Biomed Pharmacother. 2019;116:108999. DOI: 10.1016/j.biopha.2019.108999.
Babar A, Moore L, Leblanc V, Dudonne S, Desjardins Y, Lemieux S, et al. High dose versus low dose standardized cranberry proanthocyanidin extract for the prevention of recurrent urinary tract infection in healthy women: A double-blind randomized controlled trial. BMC Urol. 2021;21(1):44. DOI: 10.1186/s12894-021-00811-w.
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