Pioglitazone Enhances Survival and Regeneration of Pelvic Ganglion Neurons After Cavernosal Nerve Injury

Urology
Eric G KatzWayne J G Hellstrom

Abstract

To investigate the effects of pioglitazone on pelvic ganglion neurons in a rat model of bilateral cavernosal nerve crush injury (BCNI), thereby elucidating the actions of pioglitazone in preventing post-prostatectomy neurogenic erectile dysfunction. Sprague-Dawley rats aged 12 weeks were divided into four groups: (a) sham procedure, (b) BCNI, (c) BCNI + postsurgical pioglitazone, and (d) BCNI + pre and postsurgical pioglitazone (preventive therapy). Preoperative injection of Fluoro-Gold (FG) fluorescent tracer into the cavernosal tissue was performed for retrograde labeling of pelvic ganglion cells. Pelvic ganglia were resected at 2 weeks in all rats and processed for real-time polymerase chain reaction, immunohistochemistry, and Western blot to examine the expression of FG, neuronal nitric oxide synthase, β-III tubulin, neurturin, and glial cell line-derived neurotrophic factor family receptor alpha-2 (GFRα2). Animals treated with pre- and postsurgical pioglitazone demonstrated increased staining for FG similar to sham levels. Gene expression of neuronal nitric oxide synthase, neurturin, GFRα2, and β-III tubulin was also upregulated in the group receiving preventive therapy. Pioglitazone provides a protective effect on pelvic ...Continue Reading

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Citations

Jul 3, 2021·Journal of Clinical Medicine·Angelo CignarelliFrancesco Giorgino
Sep 14, 2021·Diabetes/metabolism Research and Reviews·Giuseppe DefeudisDaniele Gianfrilli

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