Endocrine Abstracts

The majority of pregnancy steroids originate in the fetal zone of the fetal adrenal (FZ). The data in the literature indicates that placental CRH directly stimulates the FZ. Despite the substantial alterations in the placental CRH production in late pregnancy, the predictivity of CRH for an estimation of term is poor. To sidetrack the expensive determination of unstable CRH, it may be expediential to use the FZ steroids. However, even these substances may not be optimal for pr...