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妊娠期营养不良对大鼠糖、脂代谢及子代出生体重的影响 被引量:5

Effects of gestational malnutrition on glucose and lipid metabolism of pregnant rats and birth weight of their offsprings
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摘要 目的研究妊娠期营养不良(营养过剩及营养不足)对大鼠糖、脂代谢及子代出生体重的影响。方法Wistar大鼠从确定妊娠第1天起按摄人食物的不同,分别分为高脂高热量组、正常饮食组及低热量饮食组,每组10只。比较孕鼠妊娠期体重变化以及妊娠晚期血清甘油三酯、高密度脂蛋白、低密度脂蛋白、空腹血糖、胰岛素的水平、口服葡萄糖耐量试验和胰岛素释放试验结果的差异,观察各组子代出生体重及仔鼠巨大儿和低体重的发生率。采用单因素方差分析、LSD或DunnettT3检验、卡方检验进行统计学分析。结果高脂高热量饮食组大鼠妊娠期体重明显增加,妊娠晚期血清甘油三酯及低密度脂蛋白分别为(1.68±0.13)mmol/L及(0.57±0.04)mmol/L,均高于正常饮食组[(0.78±0.08)mmol/L及(0.35±0.07)mmol/I,),P均〈O.01],而高密度脂蛋白低于正常饮食组[(o.56±0.06)mmol/L。与(1.94-0.08)mmol/L,P〈0.05];低热量饮食组甘油三酯、低密度脂蛋白及高密度脂蛋白分别为[(0.47±0.06)mmol/L、(O.21±0.06)mmol/L及(0.42±0.05)mmol/L],均低于正常饮食组(P均〈O.05)。营养不良组(高脂高热量饮食组和低热量饮食组)孕鼠均出现了糖耐量受损,口服葡萄糖耐量试验和胰岛素释放试验异常;高脂高热量饮食组鼠妊娠晚期空腹血糖高于正常饮食组[(6.63±0.53)mmol/I。与(4.90±0.26)mmol/L,P〈0.05],低热量饮食组空腹血糖为(4.18±0.26)mmol/L,与正常饮食组比较,差异无统计学意义(P〉O.05)。3组孕鼠妊娠晚期空腹血清胰岛素水平比较,差异均无统计学意义。高脂高热量饮食组子代平均出生体重高于正常饮食组[(6.14±0.31)g与(5.73±0.26)g,P〈0.05],仔鼠巨大儿发生率高于正常饮食组[19.20%(19/99)与7.84%(8/102),P〈0.053;低热量饮食组子代平均出生体重为(4.54±0.23)g,低于正常饮食组(P〈0.05),仔鼠巨大儿发生率为13.40Yo(11/76),高于正常饮食组(P〈0.05);低体重儿发生率高于正常饮食组r15.90%(13/76)与3.92%(4/102),P〈0.051;仔鼠总数量少于正常饮食组(76只与102只)(P〈0.05),高脂高热量饮食组仔鼠总数量为99只,少于正常饮食组,但差异无统计学意义(P〉O.05)。结论妊娠期营养不良可引起大鼠妊娠期脂质代谢异常、糖耐量受损和胰岛素抵抗,同时也对子代出生体重,包括仔鼠巨大儿及低体重儿的发生率产生不良影响。 Objective To explore the glucose and liplid metabolism changes of pregnant rats and the birth weight of their of fsprings clue to pregnancy malnutrition, including overnutrition and undernutrition. Methods Thirty pregnant Wistar rats were randomly divided into three groups on the day of conception, the high fat-diet group, normal control group and 50% food-restricted diet group. Increase of body weight and serum level of triglyeerides, high-density lipoprotein, low-density lipoprotein, oral glucose tolerance test (OGTT) and insulin release test(IRT) levels during pregnancywere measured. The birth weight of offsprings was recorded within 12 h after birth. One-way ANOVA, I.SD or Dunnett T3, and Chi-square test were applied for statistical analysis.
出处 《中华围产医学杂志》 CAS 北大核心 2013年第6期362-368,共7页 Chinese Journal of Perinatal Medicine
基金 上海交通大学医学院院基金项目(11XJ21002)
关键词 妊娠并发症 营养不良 葡萄糖代谢障碍 脂代谢障碍 巨大胎儿 婴儿 出生时低体重 疾病模型 动物 Pregnancy complications Malnutrition Glucose metabolism disorders Lipidmetabolism disorders Fetal macrosomia Infant, low birth weight~ Diseasemodels, animal
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参考文献22

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二级参考文献52

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