Epididymis of Viscacha (Lagostomus maximus maximus): A Morphological Comparative Study in Relation to Sexual Maturity
| Autor: | E. M. Chaves, Albana Cruceño, Fabian Mohamed, Claudia Aguilera-Merlo |
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| Rok vydání: | 2016 |
| Předmět: |
Male
0301 basic medicine endocrine system food.ingredient Stromal cell Muscle Fibers Skeletal Biology Andrology 03 medical and health sciences food Chinchilla medicine Animals Sexual maturity Testosterone Epididymis Lagostomus General Veterinary urogenital system Epithelial Cells General Medicine Anatomy Viscacha biology.organism_classification Immunohistochemistry Androgen receptor 030104 developmental biology medicine.anatomical_structure Receptors Androgen Testicular histology |
| Zdroj: | Anatomia, Histologia, Embryologia. 46:73-84 |
| ISSN: | 0340-2096 |
| DOI: | 10.1111/ahe.12240 |
| Popis: | Summary The morphological variations and the androgen receptor (AR) expression were studied in viscacha epididymis in relation to sexual maturity. The animals were divided into immature, pre-pubertal and adult, according to their corporal weight and testicular histology. The epididymides were studied by light microscopy, immunohistochemistry for AR and morphometric analysis. In pre-pubertal and adult animals, four well-differentiated segments (initial, caput, corpus and cauda) were observed, while in immature animals, three segments were identified (initial-caput segment, corpus and cauda). In each segment, the structural parameters and the relative cell distribution were different between the groups. The serum testosterone levels of pre-pubertal and adults showed a very significant increase related to sexual maturity. The AR expression in epithelial and fibromuscular stromal cells was different between the groups. In conclusion, the present work demonstrates that the morphological characteristics of the viscacha epididymis vary while sexual maturity is reached, the development of initial and caput is subsequent to corpus and cauda development and the androgens might play an important role during this process. |
| Databáze: | OpenAIRE |
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