产品描述:
Estriol-d2 is intended for use as an internal standard for the quantification of estriol (Item No. 10006484) by GC- or LC-MS. Estriol is a metabolite of estradiol (Item Nos. ISO60155 | 10006315) and a major estrogen produced in the later stages of pregnancy. In a longitudinal study in healthy pregnant women, total plasma estriol levels increased from 15873) and serves as a direct marker of fetal adrenal gland activity.{7766} Saliva contains primarily unbound and unconjugated estriol and is commonly used for monitoring estriol levels.{7766,7799} Plasma levels of estriol in males and non-pregnant females is less than 2 ng/ml.{7647}