... (Monodelphis domestica) KeyWords Testis Ovary Marsupial Sexual differentiation Abstract The time course for gonadal development in gray short-tailed opossums was examined in this study. It was found that the gonads were not differentiated on day 1 of postnatal life (the day of birth). While testis development...

... with the presence of testicular Leydig cells in similar conditions. The examination of ovaries from 62 cases with complications of pregnancy and of 113 controls showed that such conditions did not have an influence on the presence of hilar cells in the fetal and neonatal ovary. These findings are in marked contrast...

...Lilly H. Zondek; Theodor Zondek The presence of ovarian hilar cells in anencephaly has been investigated and compared with the presence of testicular Leydig cells in the same condition. The examination of 29 anencephalic ovaries and 49 controls showed that up to 36 weeks of gestation...