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Braz J Biol. 2016 May 3;76(3):645-55. doi: 10.1590/1519-6984.23514.

Adrenal glands of Spix's yellow-toothed cavy (Galea spixii, Wagler, 1831): morphological and morphometric aspects.

Author information

1
School of Veterinary Medicine and Animal Science, Universidade de São Paulo, Universidade de São Paulo, São Paulo SP , Brazil, Post Graduate Program Anatomy of Domestic and Wild Animals, Department of Surgery, School of Veterinary Medicine and Animal Science, Universidade de São Paulo - USP, Av. Prof. Dr. Orlando Marques de Paiva, 87, CEP 05508-270, São Paulo, SP, Brazil.
2
Department of Morphology, Universidade Federal de Minas Gerais, Universidade Federal de Minas Gerais, Belo Horizonte MG , Brazil, Post Graduate Program of Cellular Biology, Department of Morphology, Universidade Federal de Minas Gerais - UFMG, Av. Presidente Antônio Carlos, 6627, CEP 31270-901, Belo Horizonte, MG, Brazil.
3
Institute of Health Sciences, Universidade Federal do Mato Grosso, Universidade Federal do Mato Grosso, Sinop MT , Brazil, Sector Animal Anatomy, Institute of Health Sciences, Universidade Federal do Mato Grosso - UFMT, Campus Sinop, Av. Alexandre Ferronato, 1200, Setor Industrial, CEP 78557-267, Sinop, MT, Brazil.
4
Department of Animal Science, Universidade Federal Rural do Semi-Árido, Universidade Federal Rural do Semi-Árido, Mossoró RN , Brazil, Post Graduate Program of Animal Science, Department of Animal Science, Universidade Federal Rural do Semi-Árido - UFERSA, Rodovia BR 110, Km 47, CEP 59625-900, Mossoró, RN, Brazil.

Abstract

Considering the physiological importance and need of greater morphophysiological knowledge of adrenal glands, the aims of present study were compare the morphometric data between left and right adrenal of male and female; perform a histological, scanning and transmission electron microscopy study showing tissue constitution of glands; finally, in order to define the presence and correct site of the cytochrome P450c17 expression in adrenal glands, immunohistochemical study of this enzyme was performed in 18 adrenal glands (right n=9 and left n=9) of nine adult Galea spixii (four males and five females). Right adrenal was more cranially positioned than left adrenal; dimensions (weight, length and width) of right adrenal was larger than left adrenal; no differences between male and female body and adrenal measurements were found; the morphology of cells and different amounts of lipid droplets may be related to the different demands of steroid hormones production, related to each zone of the adrenal cortex; and, the cytochrome P450c17 immunolocalization in fasciculate and reticular zone may be related with synthesis of 17-hydroxy-pregnenolone, 17-hydroxy-progesterone, dehydroepiandrosterone or androstenedione.

PMID:
27143060
DOI:
10.1590/1519-6984.23514
[Indexed for MEDLINE]
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