Maternal Body Composition Regulates Placental Function
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 41
- 主要终点
- Compare maternal body fat measurement
研究概览
简要总结
This study examined the relationships between maternal body composition, placental function, and fetal nutrition and body composition, and sought to determine the most accurate method of maternal body composition analysis in late pregnancy.
详细描述
This study examined the relationships between maternal body composition, placental function, and fetal nutrition and body composition, and sought to determine the most accurate method of maternal body composition analysis in late pregnancy. This project integrates body composition analysis, nutrition, and metabolic factors to study the impact of maternal body composition and diet on placental function and fetal growth.
Research Project: The proposed enrollment of 41 pregnant women at term (>37 weeks gestation) was completed in September 2013. The subjects underwent four body composition measurements (bioelectrical impedance, skin-fold thickness, BodPod, and deuterium dilution) and dietary surveys along with a fasting blood draw. The subjects returned 2 weeks postpartum for repeat measurements along with a DEXA scan.
研究设计
- 研究类型
- Observational
- 观察模型
- Cohort
- 时间视角
- Prospective
入排标准
- 年龄范围
- 18 Years 至 55 Years（Adult）
- 性别
- Female
- 接受健康志愿者
- 是
入选标准
- •Healthy pregnant women at term with singleton gestation
排除标准
- •Medical condition requiring daily medication Fetal congenital anomalies Diabetes
结局指标
主要结局
Compare maternal body fat measurement
时间窗: 37 weeks gestation
Subjects presented for their study visits in the morning following an overnight fast. During the first visit, at 37-38 weeks' gestation, they underwent four measures: 1) ADP, 2) TBW volume by deuterium (2H2O) dilution, 3) skin-fold thickness (SFT), and 4) bioelectrical impedance analysis (BIA). To determine maternal FM (kg) without the presence of the fetus or placenta, and to avoid radiation exposure to the fetus, subjects returned for a second study visit two weeks postpartum for repeat measurements by the above methods plus a dual-energy x-ray absorptiometry scan (DXA) scan. Statistical analysis was performed using the R package Method Comparison Regression, version 1.2.1. Estimates of mean FM (kg) were compared by analysis of variance.
次要结局
未报告次要终点
研究者
Nicole Marshall
Primary Investigator
National Center for Research Resources (NCRR)