中孕期大脑中动脉与脐动脉阻力指数比值差对单绒毛膜双胎围生儿结局不良的预测-- 关键词] 彩色多普勒;阻力指数比值;胎儿发育 [gap=1042]Key words] Color dopple flow imaging; Resistance index ratio; Prenataldevelopment
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Objective: to investigate the effect of prenatal tobacco and alcohol exposure on stature and neural development of offspring.
目的:探讨孕期烟酒对子代神经发育的影响和机制。
Objective to study the effects of prenatal exposure to low level lead on the physical and neuro-behavioral development of mice and the interaction between lead and zinc.
目的研究孕期铅染毒对仔鼠生理发育与行为能力的影响及其与锌的相互作用。
Methods: to research the effects of prenatal cocaine exposure on spatial resolution in the water maze test and observe the development of frontal cortex and hippocampus by toluidine blue staining.
方法:运用水迷宫方法观察可卡因对子鼠空间辨别能力的影响;采用甲苯胺蓝染色技术观察额叶皮质及海马的发育情况。
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