Endothelial function,regulation of angiogenesis and embryonic central hemodynamics in ART-conceived pregnancies

Abstract

This study was undertaken to compare the concentrations of pro- and anti-angiogenic growth factors, nitric oxide (NO) stable metabolites in maternal serum and embryonic left ventricular (LV) isovolumic relaxation time (IRT, ms) during the first trimester in two groups of women: with pregnancy conceived by assisted reproductive technologies (ART, n?=?39) and normally conceived (control group, n?=?68) pregnancy. The concentration of vasoconstrictor endothelin 1 was 45.5 times more in ART than in control group. On the contrary, the concentrations of NO stable metabolites in ART were 1.9 times less than in control women. The assessment of angiogenic suppressors in ART women demonstrates the decrease in s-endoglin concentration was 1.6 times and in soluble receptor to vascular endothelial growth factor concentration was 2.0 times in comparison with control group. There was a significant increase in LV IRT in ART embryos in comparison to control ones. These data suggest significant changes in pro- anti-angiogenic factors balance and increase in vascular impedance in ART-conceived embryos.     

中西医结合治疗排卵障碍性不孕症临床观察

目的:观察中西医结合治疗排卵障碍性不孕症的疗效。方法:82例按随机数字表法分为对照组和观察组各41例。两组均给予常规西药治疗,观察组加用腹针温阳法治疗。结果:受孕成功率观察组84.44%,对照组71.11%,两组比较差异有统计学意义(P<0.05)。观察组优质卵泡直径小于对照组(P<0.05),优质卵泡数量以及子宫内膜厚度均高于对照组(P<0.05)。两组卵巢动脉血流PI、RI、PSV与EDV指标均优于治疗前(P<0.05),且观察组各项指标均优于对照组(P<0.05)。结论:中西医结合治疗排卵障碍性不孕症可改善卵泡发育以及卵巢动脉血流指标,提高受孕率。     

The Presence of Portal Vein Thrombosis Alters the Classic Enhancement Associated with Diagnosis of Hepatocellular Carcinoma

Digestive Diseases and Sciences - To determine whether the presence of portal vein thrombosis (PVT) where venous flow within the liver may be altered may delay the diagnosis of HCC and be...     

Effect of Tropicamide on Laser Flare Meter Measurements in Patients with Pseudoexfoliation

ABSTRACT

Purpose

To investigate the effect of 1% tropicamide on anterior chamber aqueous flare (ACAF) measurements acquired with laser flare meter in patients with pseudoexfoliation.     

Sexual dimorphism in shape and size of the neurocranium

International Journal of Legal Medicine - Sex identification is a primary step in forensic analysis of skeletal remains. The accuracy of sex estimation methods greatly depends on the sexual...