Journal
INTERNATIONAL UROGYNECOLOGY JOURNAL
Volume 34, Issue 4, Pages 797-808Publisher
SPRINGER LONDON LTD
DOI: 10.1007/s00192-022-05387-z
Keywords
Pelvic floor dysfunction; Animal model; Pelvic organ prolapse; Stress urinary incontinence
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This study explored the current practice of using animal models for female pelvic floor dysfunction (PFD) and found that rats are the most applicable animal type for modeling methods. Vaginal dilation is the most widely used modeling method for research on the pathogenesis, pathological changes, and treatment of PFD.
Introduction and hypothesis The objective was to explore the current practice of using animal models for female pelvic floor dysfunction (PFD). Methods By applying PFD and animal models as the keywords, we made a computerized search using PubMed, Ovid-Medline and Ovid-Embase from 2000 to 2022. The publications on the construction and application of animal models for PFD were included, and the results are presented in narrative text. Results Studies on PFD primarily use rodents, large quadrupeds, and nonhuman primates (NHPs). NHPs are closest to humans in anatomy and biomechanics of the pelvic floor, followed by large quadrupeds and rodents. Rodents are more suitable for studying molecular mechanism, histopathology of PFD, and mesh immune rejection. Large quadrupeds are adaptable to the study of pelvic floor biomechanics and the development of new surgical instruments for PFD. NHPs are suitable for studying the occurrence and pathogenesis of pelvic organ prolapse. Among modeling methods, violent destruction of pelvic floor muscles, regulation of hormone levels, and denervation were used to simulate the occurrence of PFD. Gene knockout can be used to study both the pathogenesis of PFD and the efficacy of treatments. Other methods such as abdominal wall defect, vaginal defect, and in vitro organ bath system are more frequently used to observe wound healing after surgery and to verify the efficacy of treatments. Conclusions The rat is currently the most applicable animal type for numerous modeling methods. Vaginal dilation is the most widely used modeling method for research on the pathogenesis, pathological changes, and treatment of PFD.
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