Effect of testosterone therapy on the urinary bladder in experimental hypogonadism of rats

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• 作者：Ahmed A. M. Abdel-Hamid ; Eyad M. T. Ali
• 关键词：Testosterone replacement therapy ; Urothelium ; Castration ; Hypogonadism ; Ck20
• 刊名：Journal of Molecular Histology
• 出版年：2015
• 出版时间：June 2015
• 年：2015
• 卷：46
• 期：3
• 页码：263-272
• 全文大小：2,820 KB
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• 作者单位：Ahmed A. M. Abdel-Hamid (1)
  Eyad M. T. Ali (2)
  
  1. Department of Histology and Cell Biology, Faculty of Medicine, Mansoura University, P.O. 35516, Mansoura, Egypt
  2. Department of Anatomy, Faculty of Medicine, Mansoura University, Mansoura, Egypt
  
• 刊物类别：Biomedical and Life Sciences
• 刊物主题：Life Sciences
  Cell Biology
  Biomedicine
  Developmental Biology
  
• 出版者：Springer Netherlands
• ISSN：1567-2387

文摘

Testosterone (T) deficiency is prevalent particularly in elderly men and lead to physical and sexual morbidities. Although low levels of T are associated with low urinary tract symptoms, the correlation between T deficiency and bladder dysfunction is not clearly identified. The aim of this study was to investigate the effect of high dose testosterone replacement therapy (TRT) on the histological structure of the UB in castrated rats. Twenty-five adult male rats were divided into three groups: control, castrated and castrated?+?TRT. T was administrated in high dose (100?mg/kg) two intramuscular injections/week for 60?days. UB sections were prepared and stained with H&E, Masson’s trichrome and immunohistochemical detection of Cytokeratin 20 (Ck20). All data were morphometrically and statistically analyzed. In castrated group, significant atrophy of the urothelium (P?<?0.001) accompanied with widening of the corium were observed. The smooth muscle appeared thin with marked increase in the collagen fibers. On treating the castrated group with TRT, atypical Ck20 expression as well as significant increase in urothelial thickness (P?<?0.05) and smooth muscle/collagen ratio (P?<?0.001) were detected. In castrated rat model, high dose TRT has a positive effect on the UB smooth muscle rather than the urothelium which acquired atypical patterns.