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Leptin对营养性肥胖大鼠摄食量体重和血脂的影响 被引量:3

Effects of intracerebroventricular injection of recombinant leptin on food intake, body weight and blood lipids in diet-induced obese rats
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摘要 目的 探讨leptin对营养性肥胖模型的减肥、降脂作用。 方法 建立高营养饮食诱导的肥胖大鼠模型 ,行右侧脑室内插管 ,每只注射重组leptin 5 μg ,连续 5d ,测量体重、记录摄食量并测定血脂 [总胆固醇 (TC) ,三酰甘油 (TG) ,高密度脂蛋白胆固醇 (HDL -C)、低密度脂蛋白胆固醇 (LDL -C) ]。结果 ①模型制作过程中 ,肥胖组大鼠体重增长较正常组明显 [7周后 ( 3 4 7± 4 4 ) gvs ( 2 88± 3 2 ) g ,增重 ( 2 69± 4 6)gvs ( 2 13± 3 2 ) g],差异有显著性 (P <0 .0 1)。注射leptin 1d后 ,肥胖大鼠即出现体重明显下降、摄食量减少 ,与注射前比较差异有显著性 ,5d后尤为明显。体重 ( 3 3 6.3± 5 2 .1) g降至 ( 2 87.9± 5 3 .4 ) g ( P <0 .0 1) ,减少 ( 4 8.4± 17.9) g ;进食量 ( 3 5 .6±13 .7) g降至 ( 2 1.1± 11.8) g (P <0 .0 1) ,共减少 ( 14 .6± 4 .8) g。正常对照组体重和摄食量在给药 3d后才有所下降 :体重 ( 2 94 .5± 2 9.9) g降至 ( 2 69.5± 3 0 .9) g ( P <0 .0 5 ) ,减少 ( 2 5 .0± 17.8) g ;进食量 ( 3 1.0± 3 .5 ) g降至( 2 5 .6± 3 .6) g ( P <0 .0 5 ) ,共减少 ( 5 .3± 3 .3 ) g ,但效应较迟且无肥胖组明显。两者减重量和减食量相比 ,P <0 .0 1。②肥胖leptin治疗组TC ,LDL
出处 《中国当代儿科杂志》 CAS CSCD 2001年第4期373-376,464-468,共9页 Chinese Journal of Contemporary Pediatrics
基金 江苏省科委自然科学基金资助项目 (基金号 :BK99136)
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同被引文献21

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