Placental development during early pregnancy in sheep: Effects of embryo origin on fetal and placental growth and global methylation
نویسندگان
چکیده
منابع مشابه
Placental development during early pregnancy in sheep: cell proliferation, global methylation, and angiogenesis in the fetal placenta.
To characterize early fetal placental development, gravid uterine tissues were collected from pregnant ewes every other day from day 16 to 30 after mating. Determination of 1) cell proliferation was based on Ki67 protein immunodetection; 2) global methylation was based on 5-methyl-cytosine (5mC) expression and mRNA expression for DNA methyltransferases (DNMTs) 1, 3a, and 3b; and 3) vascular dev...
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Background & Objective: Due to the relevant use of aspirin to relieve pain and common symptoms of gastric ulcer and possible malicious effects on fetus, this study investigates the histomorphologic effects of aspirin on the stomach tissue in rat embryos. Materials & Methods: In this experimental study, 30 pregnant female rats were randomly divided into six groups including control group wi...
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Exercise during pregnancy has become an important topic with the recent popularity of physical fitness programs among the non-pregnant population. Various physiological effects of exercise have been reported in several animal species, and there are some reports of physiological effects in pregnant women which will be reviewed.
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Contents 1. Introduction 2. Gene expression for uterine proteins and nutrient transporters 2.1. Temporal and spatial changes in steroid hormone receptors in the uterus during the peri-implantation period of pregnancy 3. Pregnancy recognition 3.1. Luteotrophic versus antiluteolytic signaling for pregnancy recognition 3.2. Corpus luteum formation and regression 3.3. Pregnancy recognition signals ...
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Pregnancy is associated with a significant increase in uteroplacental blood flow (UBF), which is responsible for delivering adequate nutrients and oxygen for fetal and placental growth. The present study was designed to determine the effects of vascular insufficiency on fetal and placental growth. Thirty-nine late-term pregnant ewes were instrumented to investigate the effects of chronic UBF re...
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ژورنال
عنوان ژورنال: Theriogenology
سال: 2013
ISSN: 0093-691X
DOI: 10.1016/j.theriogenology.2012.09.013