Muro-Neuro-Urodynamics: a review of the functional assessment of mouse lower urinary tract function
Author(s)
Type
Journal Article
Abstract
Background: Mouse urodynamic tests are fundamental to understanding normal lower urinary tract (LUT) function. These experiments also contribute to our understanding of neurological dysfunction, pathophysiological processes, and potential mechanisms of therapy.Objectives: Systematic assessment of published evidence on urodynamics, advantages and limitations of different urodynamic measurements in mice, and consideration of potential implications for the clinical field.Methods: A search using specific search-terms for urodynamic studies and mice was conducted on PubMed (from inception to 1 July 2016).Results: We identified 55 studies examining or describing mouse neuro-urodynamics. We summarize reported features of mouse urodynamic function deriving from frequency-volume chart (FVC) measurements, voiding spot assays, filling cystometry, and pressure-flow studies. Similarly, an influence of the diurnal cycle on voiding is observed in mice and should be considered when interpreting rodent urodynamic studies, especially FVC measurements and voiding spot assays. Anaesthesia, restraint conditions, or filling rate influence mouse neuro-urodynamics. Mouse cystometric studies have observed intravesical pressure oscillations that accompany urine flow, attributed tohigh frequency opening and closing of the urethra. This characterization is not seen in other species, except rats. In contrast to human clinical urodynamics, the terminology of these examinations has not been standardized although many rodent urodynamic studies have been described.Conclusion: Mice have many anatomical and physiological similarities to humansand they are generally cost effective, and allow investigation of the effects of aging because of their short lifespan. There are some differences between mouse and human urodynamics. These must be considered when interpreting LUT function in mice, and translational value of murine disease models.
Date Issued
2017-02-06
Date Acceptance
2017-01-18
Citation
Frontiers in Physiology, 2017, 8, pp.1-13
ISSN
1664-042X
Publisher
Frontiers Media S.A.
Start Page
1
End Page
13
Journal / Book Title
Frontiers in Physiology
Volume
8
Copyright Statement
Copyright © 2017 Ito, Pickering, Igawa, Kanai, Fry and Drake. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
License URL
Identifier
https://www.frontiersin.org/articles/10.3389/fphys.2017.00049/full
Notes
18 January 2017 keywords: Mouse model, Lower urinary tract dysfunction, Cystometry, Electromyography of the external urethral sphincter, Frequency-volume chart
Publication Status
Published
Article Number
49
Date Publish Online
2017-02-06