Abstract
Objectives
To address to a better understanding of whether increased water consumption is associated with beneficial effects of urinary tract infections prophylaxis and treatment, and if so, the mechanism involved in this process.
Methods
Models of the catheterized bladder were infected with Escherichia coli. Artificial urine was supplied at various flow rates and various concentrations to separately assess the “flushing effect” and “dilution effect” of increased water consumption on catheter blockage time, encrustation formation, and bacterial growth.
Results
There were no statistical significances regarding catheter blockage time (P = 0.92), encrustation formation, and bacterial growth among bladder models supplied with various flow rates. When the flow rate was set as 1 ml/min, however, there showed significant decrease trend of the time to blockage (P = 0.0005), encrustation formation, and bacterial growth as the concentration of the artificial urine increased except the twofold-concentration urine group.
Conclusions
Increased water consumption is associated with beneficial effects of urinary tract infection prophylaxis and treatment, and dilution effect of bacteria nutrition in the urine is at least partly involved in this process if not all, rather than the “flushing effect”. Considering the flaws and the in vitro design of the current study, however, an in vivo study is warranted.
Similar content being viewed by others
References
Schappert SM, Burt CW (2006) Ambulatory care visits to physician offices, hospital outpatient departments, and emergency departments: United States, 2001–02. Vital Health Stat 159:1–66
Mulvey MA, Schilling JD, Martinez JJ, Hultgren SJ (2000) Bad bugs and beleaguered bladders: interplay between uropathogenic Escherichia coli and innate host defenses. Proc Natl Acad Sci USA 97:8829–8835
Mulvey MA, Schilling JD, Hultgren SJ (2001) Establishment of a persistent Escherichia coli reservoir during the acute phase of a bladder infection. Infect Immun 69:4572–4579
Geerlings SE (2008) Urinary tract infections in patients with diabetes mellitus: epidemiology, pathogenesis and treatment. Int J Antimicrob Agents 31(Suppl 1):S54–S57
Funfstuck R, Nicolle LE, Hanefeld M, Naber KG (2012) Urinary tract infection in patients with diabetes mellitus. Clin Nephrol 77:40–48
Chen SL, Jackson SL, Boyko EJ (2009) Diabetes mellitus and urinary tract infection: epidemiology, pathogenesis and proposed studies in animal models. J Urol 182:S51–S56
Griffith DP, Musher DM, Itin C (1976) Urease. The primary cause of infection-induced urinary stones. Invest Urol 13:346–350
Stickler DJ, Morris NS, Winters C (1999) Simple physical model to study formation and physiology of biofilms on urethral catheters. Methods Enzymol 310:494–501
Lotan Y, Daudon M, Bruyere F, Talaska G, Strippoli G, Johnson RJ (2013) Impact of fluid intake in the prevention of urinary system diseases: a brief review. Curr Opin Nephrol Hypertens 22(Suppl 1):S1–S10
Beetz R (2003) Mild dehydration: a risk factor of urinary tract infection? Eur J Clin Nutr 57(Suppl 2):S52–S58
Hooton TM, Bradley SF, Cardenas DD, Colgan R, Geerlings SE, Rice JC, Saint S, Schaeffer AJ, Tambayh PA, Tenke P, Nicolle LE (2010) Diagnosis, prevention, and treatment of catheter-associated urinary tract infection in adults: 2009 International Clinical Practice Guidelines from the Infectious Diseases Society of America. Clin Infect Dis 50:625–663
Hunt JC, Waller G (1992) Psychological factors in recurrent uncomplicated urinary tract infection. Br J Urol 69:460–464
Kunin CM (1997) Urinary tract infections. detection, prevention and management, 5th edn. Williams & Wilkins, Baltimore
Grabe M, Bjerklund-Johansen TE, Botto H, Cek M, Naber KG, Pickard RS, Tenke P, Wagenlehner F, Wullt B (2013) EAU guideline on urological infections. European Association of Urology 2013. http://www.uroweb.org/gls/pdf/18_Urological%20infections_LR.pdf. Accessed March 2014
Cicmanec JF, Shank RA, Evans AT (1985) Overnight concentration of urine. Natural defense mechanism against urinary tract infection. Urology 26:157–159
Acknowledgments
This study was funded by grants from the Technology Support Program of Science and Technology Department of Sichuan Province (Nos. 2010SZ0163 and 2008SZ0204) and the Ph.D. Programs Foundation of Ministry of Education of China (No. 20110181130003).
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
Conflict of interest
Author Ye Tian declares that he has no conflict of interest. Author Xiang Cai declares that he has no conflict of interest. Author Romel Wazir declares that he has no conflict of interest. Author Kunjie Wang declares that he has no conflict of interest. Author Hong Li declares that he has no conflict of interest.
Ethical approval
This article does not contain any studies with human participants or animals performed by any of the authors.
Rights and permissions
About this article
Cite this article
Tian, Y., Cai, X., Wazir, R. et al. Water consumption and urinary tract infections: an in vitro study. Int Urol Nephrol 48, 949–954 (2016). https://doi.org/10.1007/s11255-016-1262-7
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11255-016-1262-7