桂皮提取物对糖尿病大鼠血糖和血脂含量的影响

Effects of cinnamon on blood sugar and lipid levels in diabetic rats

【目的】探讨桂皮提取物对糖尿病大鼠血糖和血脂含量的影响。【方法】给大鼠腹腔注射200mg/kg的四氧嘧啶建立糖尿病模型。试验共分4组:正常对照组(Ⅰ)、糖尿病模型组(Ⅱ)、低剂量桂皮提取物组(Ⅲ)和高剂量桂皮提取物组(Ⅳ),Ⅲ、Ⅳ组糖尿病模型大鼠分别灌服100和200mg/(kg.d)的桂皮提取物,连续灌服30d;Ⅰ、Ⅱ组大鼠分别灌服生理盐水,方法和剂量同前。试验期间观测各组大鼠饮食、尿量,并在0d(开始时)和30d时,取样测定大鼠血糖、血清总胆固醇(TC)、甘油三酯(TG)、低密度脂蛋白(LDL-C)、高密度脂蛋白(HDL-C)水平和体质量。【结果】试验开始时,与Ⅰ组相比,Ⅱ、Ⅲ和Ⅳ组大鼠体质量显著降低(P<0.05),血糖显著提高(P<0.05)。试验结束时,与Ⅱ组相比,Ⅳ组大鼠血糖及血清TC、TG和LDL-C水平显著降低(P<0.05),而体质量和HDL-C水平显著升高(P<0.05);而Ⅳ组与Ⅰ组相比,大鼠体质量、血糖及血清TC、TG、LDL-C和HDL-C水平差异均不显著(P>0.05)。【结论】灌服200mg/(kg.d)的桂皮提取物,能够降低四氧嘧啶所致糖尿病大鼠的血糖及血清TC、TG和LDL-C水平,增加其体质量,提高其血清HDL-C水平。

【Objective】 The study was conducted on the effects of cinnamon on blood sugar and lipid levels in diabetic rats.【Method】 The diabetic rats were induced by intraperitoneal injection of 200 mg/kg alloxan to establish diabetic model.The rats were divided into control group（Ⅰ）,model group（Ⅱ）,low dose cinnamon treating group（Ⅲ） and high dose cinnamon treating group（Ⅳ）.The diabetic rats of group Ⅲ and Ⅳ were orally administered with 100 and 200 mg/（kg·d） cinnamon extract respectively,for 30 days.The rats of group Ⅰ and Ⅱ were orally administered with saline respectively by the same way and the same dose.The daily feed consume,water intake and urine excretion were recorded.The blood sugar,TC,TG,LDL-C,HDL-C level and the body weight were estimated at 0 and 30 d.【Result】 Compared with the rats of group Ⅰ,the body weight of all the diabetic rats of group（Ⅱ,Ⅲ and Ⅳ） decreased significantly（P0.05）,and the blood sugar level increased significantly（P0.05） at 0 d.Compared with the rats of groupⅡ,the blood sugar,TC,TG,LDL-C level of the diabetic rats in group Ⅳdecreased significantly（P0.05）,the body weight and HDL-C level increased significantly（P0.05） at 30 d.Compared with the rats of group Ⅰ,there were no differences in body weight,blood sugar,TC,TG,LDL-C and HDL-C level of the diabetic rats in group Ⅳ at 30 d（P0.05）.【Conclusion】 The cinnamon extract（200 mg/（kg ·d）） decreased the blood sugar,TC,TG and LDL-C level of the diabetic rats induced by alloxan,increased the body weight and enhanced HDL-C level.Enrichment of cinnamon with cinnamate can provide a functional food spice that could potentially benefit human health.