一种新的代谢综合征大鼠模型的建立

目的：构建、评价高盐高脂饲养诱导的代谢综合征大鼠（MS）动物模型。方法：雄性Wistar大鼠,于哺乳期（3周龄）后,随机分为3组（每组12只）：正常盐组（0.5%NaCl,NS）、高盐组（4%NaCl,HS）和高盐高脂组（49%fat＋4%NaCl,FS）,持续饲养18周,测体重,颈总动脉插管直接测血压,血浆测血脂指标TC、TG、低密度脂蛋白胆固醇（LDL-C）、高密度脂蛋白胆固醇（HDL-C）,测血清胰岛素和血糖值。结果：HS、FS组较NS组大鼠血压明显增高（P〈0.01）,而HS组与FS组之间差异无统计学意义;FS组较NS组大鼠血脂明显增高,以TC、TG、LDL-C为主,三者均P〈0.01,HDL-C无明显改变（P〉0.05）,HS组与NS组之间差异无统计学意义;FS组大鼠胰岛素抵抗指数较NS组明显升高（P〈0.01）,HS组与NS组之间差异无统计学意义;FS组较NS组大鼠体重明显增加（P〈0.01）,HS组与NS组之间差异无统计学意义。结论：长期高盐高脂饲养可诱导出符合或接近临床的代谢综合征大鼠模型。

Established a new rat model of metabolic syndrome

AIM:To establish and evaluate a rat model of metabolic syndrome induced by high fat and salt diet. METHODS:Wistar rats,aged 3 weeks,which were divided into three groups in randomized manner:control with normal salt diet(0.5% NaCl,NS),high salt diet(4% NaCl,HS),fat and salt-enriched diet(49%fat+4%NaCl,FS),12 rats in each group for 18 weeks.Then the bodyweights were measured.The right carotid artery was cannulated for direct blood pressure measurement.Insulin was measured in plasma sample by enzyme linked imm...