Ivanova E A
Ontogenez. 1975;6(3):251-6.
The content of estrogens was determined in tissues of the guinea pig embryos, blood of pregnant females and placenta by means of biological testing. It was the highest in embryonic ovaries at all developmental stages. The sexual dimorphism in estrogen content was found in embryonic suprarenals: it was higher in females than in males. The estrogen content in blood of male embryos and pregnant females was similar but lower than that in female embryos. Estrogens were also found in placenta and their traces were detected in spleen, brain, hypothalamus and uterus. The problem of possible participation of estrogens in the sex differentiation of female embryos is discussed.
通过生物学检测方法测定了豚鼠胚胎组织、怀孕雌性动物血液及胎盘组织中的雌激素含量。在所有发育阶段，胚胎卵巢中的雌激素含量最高。在胚胎肾上腺中发现了雌激素含量的性别二态性：雌性高于雄性。雄性胚胎和怀孕雌性动物血液中的雌激素含量相似，但低于雌性胚胎。在胎盘中也发现了雌激素，并且在脾脏、大脑、下丘脑和子宫中检测到了其痕迹。本文讨论了雌激素可能参与雌性胚胎性别分化的问题。
