| 货号 | 582281-480Well |
| 描述 | Estriol, a metabolite of 17β-estradiol and a major estrogen produced during pregnancy, has historically been used as an indicator of fetal well-being. In the final weeks before parturition, estriol levels increase significantly. In a longitudinal study in healthy pregnant women, total plasma estriol levels increased from <10 ng/ml at 8-10 weeks gestation to approximately 150 ng/ml at week 38.1 The majority of the estriol synthesized in the later stages of pregnancy originates from fetal dehydroepiandrosterone sulfate (DHEAS) and serves as a direct marker of fetal adrenal gland activity.2 In the 1960s and 1970s plasma and urine were used to measure estriol. However, saliva contains primarily unbound and unconjugated estriol, the biologically active form of the hormone, and therefore is currently a commonly used biological fluid for monitoring estriol levels.2,3 Plasma levels of estriol in males and non-pregnant females is less than 2 ng/ml.4 |
| 别名 | Estriol EIA Kit;E3;16α-hydroxy-17β-Estradiol;1,3,5(10)-Estratriene-3,16α,17β-triol; |
| 供应商 | Cayman |
| 应用文献 | |
| 1.Peter, M.,Dörr, H.G. and Sippell, W.G. Changes in the concentrations of dehydroepiandrosterone sulfate and estriol in maternal plasma during pregnancy: A longitudinal study in healthy women throughout gestation and at term. Hormone Research 42, 278-281 (1994). 2.Goodwin, T.M. A role for estriol in human labor, term and preterm. American Journal of Obstetics and Gynecology 180, S208-S213 (1999). 3.Voss, H.F. Hormonal pathways of preterm birth. American Journal of Obstetics and Gynecology 180, S226-S231 (1999). 4.. Steroid levels in humans. (1999). | |
| 运输条件 | Wet ice in continental US; may vary elsewhere |
| 存放说明 | -20 |
| 稳定性 | ≥ 1 year |
| 本官网所有报价均为常温或者蓝冰运输价格，如有产品需要干冰运输，需另外加收干冰运输费。 |