Background: Experiments have shown that opioid drugs abuse during pregnancy can cause a delay in the development of the placenta. In mammals, the placenta is the most important channel for the exchange of Materialss between the maternal and fetal bloods. The present study investigates the time-dependent effect of the addiction duration of maternal morphine consumption during pregnancy. Material...

Choriocarcinoma (CC) is a malignant tumor of trophoblastic tissue composed cytotrophoblastic, intermediate and syncytiotrophoblast cells. predominantly has gestational origin. The non-gestational type said to arise from the gonads pluripotent germ It rapidly invasive metastasizes widely, but it good response chemotherapy once identified. Metastatic choriocarcinoma are extremely rare in breast. ...

The human placenta has a remarkable capacity to aromatize C19-steroids, produced by the fetal adrenals, to estrogens. This reaction is catalyzed by aromatase P450 (P450arom), encoded by the CYP19 gene. In placenta, CYP19 gene expression is restricted to the syncytiotrophoblast layer. Cytotrophoblasts isolated from human placenta, when placed in monolayer culture in 20% O2, spontaneously fuse to...