Placental insufficiency leads to development of hypertension in growth-restricted offspring

Placental insufficiency leads to development of hypertension in growth-restricted offspring
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DOI:
10.1161/01.hyp.0000053448.95913.3d
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发表时间:
2003-03-01
期刊:
影响因子:
8.3
通讯作者:
Alexander, BT
Alexander, BT
中科院分区:
医学1区
文献类型:
--
作者:
Alexander, BT

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低出生体重是高血压发生的一个潜在风险因素。本研究的目的是确定在怀孕大鼠中因胎盘功能不全而产生的宫内生长受限模型是否与血压显著升高相关。妊娠晚期开始的子宫灌注减少导致低出生体重的后代(5.8±0.1克对比6.6±0.2克,P<0.05)。在出生后第10周,与对照组相比,宫内生长受限的雄性大鼠收缩压升高(128±2对比118±2毫米汞柱,P<0.05),而雌性大鼠则没有这种差异(114±2对比112±2毫米汞柱,P>0.05)。在出生后第20周,宫内生长受限的雄性大鼠收缩压进一步升高(142±3对比122±2毫米汞柱,P<0.01),舒张压也升高(92±2对比82±2毫米汞柱,P<0.01)。在雌性大鼠中,宫内生长受限组在出生后第20周收缩压升高(128±2对比116±2毫米汞柱,P<0.05),舒张压也升高(84±2对比76±2毫米汞柱,P<0.05)。这些数据表明,在大鼠中,因胎盘功能不全导致的宫内生长受限与出生后血压升高有关,且这种影响在雄性大鼠中出现得更早且更显著。
Low birth weight is a suggested risk factor for the development of hypertension. The purpose of the present study was to determine whether a model of intrauterine growth restriction produced in response to placental insufficiency in the pregnant rat was associated with marked elevations in blood pressure. Reduced uterine perfusion initiated in late gestation resulted in low-birth-weight offspring (5.8+/-0.1 versus 6.6+/-0.2 g, P