ArticleFemale pelvic medicine & reconstructive surgery2022
The Impact of Methenamine Hippurate Treatment on Urothelial Integrity and Bladder Inflammation in Aged Female Mice and Women With Urinary Tract Infections.
Article in Female pelvic medicine & reconstructive surgery, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
3 citing papers in PubMed, 5 citations in OpenAlex.
- Urinary tract infections: pathogenesis, host susceptibility and emerging therapeutics.Nature reviews. Microbiology · 2025Review
- D-Mannose reduces cellular senescence and NLRP3/GasderminD/IL-1β-driven pyroptotic uroepithelial cell shedding in the murine bladder.Developmental cell · 2024Article
- Effects of aging on urinary tract epithelial homeostasis and immunity.Developmental biology · 2023Review
Corrections and comments
- Commented on byGeriatrics.2022
Authors and funding
7 authors at 4 institutions in 1 country.
Funding
Abstract
importanceAntibiotics are commonly used to treat and prevent urinary tract infection (UTI), but resistance is growing. Nonantibiotic prophylaxis such as methenamine hippurate (MH) shows clinical promise, but its impact on bladder factors influencing recurrent UTIs (rUTIs) is not well described.
objectiveThe aim of the study was to examine the effect of MH on bladder inflammation and barrier function in aged mice and women with rUTI. STUDY
designThis study included urine samples from an experimental study involving aged female mice with and without methenamine treatment as well as women with rUTI who received either no prophylaxis, MH alone, vaginal estrogen therapy and/or d-mannose alone, or MH in addition to vaginal estrogen therapy and/or d-mannose. We performed a comprehensive cytopathological analysis, which included enzyme-linked immunosorbent assay for immunoglobulin A (IgA), interleukin 6 (in human samples), and fluorescein isothiocyanate-conjugated-dextran permeability assay (in mice) to assess for urothelial permeability.
resultsIn the aged mice model, there was a decreased urothelial permeability (as seen by retention of fluorescein isothiocyanate-conjugated-dextran fluorescence in superficial cells) and increased urinary IgA in mice treated with MH compared with controls. There was no significant difference in urothelial shedding (P > 0.05). In human samples, there was significantly increased urinary IgA in those taking MH alone compared with no prophylaxis (830.1 vs 540.1 ng/mL, P = 0.04), but no significant difference in interleukin 6.
conclusionsMethenamine hippurate seems to enhance barrier function as evidenced by decreased urothelial permeability and increased urinary IgA levels, without worsening inflammation. This may reflect another beneficial mechanism by which MH helps prevent rUTI.
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Registered trials
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