Histomorphometric analysis of a rat bladder after electrical stimulation
Gisela Rosa Franco1, Emerson de Oliveira, Edmund Chada Baracat
1Department of Gynecology, EPM, Universidade Federal de São Paulo, São Paulo, SP.
Revista Da Associacao Medica Brasileira (1992)
|March 11, 2011
Summary
Electrical stimulation (ES) of the pelvic floor in rats increased bladder muscle thickness and blood vessel count. Twelve sessions of ES significantly enhanced bladder muscle fibers compared to controls.
Area of Science:
- Urology
- Physiology
- Regenerative Medicine
Background:
- Pelvic floor dysfunction can impact bladder function.
- Electrical stimulation (ES) is a potential therapeutic modality for pelvic floor disorders.
Purpose of the Study:
- To investigate the effects of pelvic floor electrical stimulation (ES) on rat bladders.
- To analyze histological changes in bladder tissue following varying durations of ES.
Main Methods:
- Forty rats were divided into control, placebo, and two ES groups (6 and 12 sessions).
- Bladders were analyzed for epithelial, muscle, and vascular changes post-stimulation.
- Histological examination focused on muscle wall thickness and fiber composition.
Main Results:
- The 12-session ES group (GIV) showed significantly increased bladder muscle wall thickness.
- Both 6-session (GIII) and 12-session (GIV) ES groups exhibited a higher number of blood vessels compared to controls.
- GIV demonstrated an increased relative percentage of muscle fibers to collagen.
Conclusions:
- Repeated pelvic floor electrical stimulation (ES) positively impacts bladder tissue.
- Twelve sessions of ES led to significant increases in bladder muscle layer thickness, vascularity, and muscle fiber content.
- ES demonstrates potential for therapeutic applications in bladder function enhancement.
