The effect of early nutritional intervention on insulin-like growth factors, intestinal development and catch-up growth in rats born with intrauterine growth retardation
2003
目的探讨早期营养干预对宫内生长迟缓(IUGR)幼鼠血清胰岛素样生长因子(IGF)和小肠发育及生长追赶的影响.方法将24只IUGR新生雌鼠和8只正常新生雌鼠随机分为4组:IUGR模型组,IUGR低蛋白组,IUGR高蛋白组,正常对照组.于生后4周时检测各组大鼠血清IGF1、胰岛素样生长因子结合蛋白3(IGFBP3)浓度、体重、身长和小肠重量、长度及肠黏膜组织结构变化.结果 4周时IUGR高蛋白组血IGF1、IGFBP3和小肠黏膜绒毛高度、吸收表面积均显著高于对照组和IUGR模型组(P 0.0 5).结论生后头4周予高蛋白饮食早期营养干预IUGR幼鼠,可通过促进小肠发育达到满意的体格生长追赶.血清IGF1是反映生长追赶的灵敏指标.
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