نتایج جستجو برای: periconceptional period
تعداد نتایج: 490693 فیلتر نتایج به سال:
Abstract Previous evidence has suggested that fertilization and preimplantation embryonic development are sensitive periods can be influenced by changes in maternal nutrition. We hypothesized feeding rumen-protected methionine (RP-Met) during the periconceptional period will program bovine gestation a manner enhances fetal postnatal growth. A total of 114 cows were fed roughage-based diet rando...
Taurine has an important role in numerous physiological processes, including many aspects of fetal development such as development of the pancreas and brain, and requirements increase during pregnancy. Periconceptional undernutrition has long-term effects on pancreas and brain function of the offspring, but the effects on maternal taurine economy are unknown. We, therefore, studied the effects ...
BACKGROUND Arsenic induces neural tube defects in several animal models, but its potential to cause neural tube defects in humans is unknown. Our objective was to investigate the associations between maternal arsenic exposure, periconceptional folic acid supplementation, and risk of posterior neural tube defect (myelomeningocele) among a highly exposed population in rural Bangladesh. METHODS ...
OBJECTIVES Approximately 4% to 12% of pregnant women have asthma; few studies have examined the effects of maternal asthma medication use on birth defects. We examined whether maternal asthma medication use during early pregnancy increased the risk of selected birth defects. METHODS National Birth Defects Prevention Study data for 2853 infants with 1 or more selected birth defects (diaphragma...
Abstract Study question Does maternal endometrial mitochondrial (mt) DNA cargo of EVs modulate embryo bioenergetics during implantation? Summary answer We demonstrate the vertical transmission mtDNA within endometrial-derived and their uptake by trophoblast which reduces respiration ATP production. What is known already The release membrane-enclosed compartments with specific cargos, commonly a...
The authors' objective was to determine the relation between periconceptional multivitamin use and the risk of small-for-gestational-age (SGA: <5th percentile; 5th-<10th percentiles) or preterm (<34 weeks; 34-<37 weeks) births. Women in the Pregnancy Exposures and Preeclampsia Prevention Study (1997-2001) reported at enrollment their regular multivitamin use in the past 6 months (n=1,823). Wome...
BACKGROUND Interactions between genetic and environmental factors, including modifiable maternal nutrition and lifestyle, play a significant role in the pathogenesis of most congenital heart defects (CHD). The aim of this study was to investigate associations between periconceptional maternal vitamin D status and the prevalence of CHD in offspring. METHODS A case-control study was performed i...
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