The ovary of Lagostomus maximus (Mammalia, Rodentia): an analysis by confocal microscopy
Biocell
; 35(2): 37-42, Aug. 2011. ilus, graf, tab
Article
em En
| LILACS
| ID: lil-639623
Biblioteca responsável:
AR1.2
ABSTRACT
Lagostomus maximus is a notable mammalian model for reproductive studies. Females have an extremely high ovulation rate, which is due to down-regulation of the follicular apoptosis pathway, which ensures a large pool of developing follicles. This large pool is supported by the convoluted anatomy of the mature ovary, whose germinal tissue is found in irregularly curved ridges throughout the cortex. Medullary tissue is restricted to a minimum. Lyso Tracker Red reconstruction under confocal laser scanning microscopy was used to recognize and measure all follicular stages from primordial to antral. Unlike most mammals in which early primordial follicles are just found in fetal life, the adult ovary shows regions packed with early primordial follicles. Follicle size ranged from 24 to 316 µm. We discuss the relationships of L. maximus follicles size with regard to other species of mammals and propose that the physiology of the adult viscacha ovary obeys to a neoteny process in the evolution of this species.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
LILACS
Assunto principal:
Ovário
/
Roedores
/
Microscopia Confocal
/
Folículo Ovariano
Limite:
Animals
Idioma:
En
Revista:
Biocell
Assunto da revista:
Clulas
Ano de publicação:
2011
Tipo de documento:
Article
País de afiliação:
Argentina