Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming, People's Republic of China.
Phytother Res. 2011 Feb;25(2):234-8. doi: 10.1002/ptr.3247.
The antiobesity and antihyperlipidaemic effects of pu-erh tea in rats with high fat diet (HFD)-induced obesity were investigated. Male Sprague-Dawley rats were randomly divided into five groups and fed varying diets for an 8-week period: control diet, HFD, and HFD supplemented with low, moderate or high doses of pu-erh tea extract (0.5 g, 2 g and 4 g/kg BW/day, respectively). Pu-erh tea significantly reduced the total body weight and the weight of various adipose pads. Pu-erh tea administration also significantly lowered plasma total cholesterol, triglyceride concentrations and low-density lipoprotein-cholesterol levels in rats with HFD-induced obesity, but did not affect high-density lipoprotein-cholesterol levels. Moreover, pu-erh tea significantly increased lipoprotein lipase, hepatic lipase and hormone-sensitive lipase activities in epididymal fat tissue in rats with HFD-induced obesity. Analysis of real-time reverse transcription-polymerase chain reaction results indicated that pu-erh tea significantly enhanced mRNA levels of hormone-sensitive lipase in rats with HFD-induced obesity. These results suggest that pu-erh tea attenuated visceral fat accumulation and improved hyperlipidemia in a rat model of HFD-induced obesity.
研究了普洱茶对高脂肪饮食(HFD)诱导肥胖大鼠的抗肥胖和抗高血脂作用。雄性 Sprague-Dawley 大鼠随机分为五组,分别给予不同的饮食 8 周:对照饮食、HFD 和 HFD 分别补充低、中、高剂量的普洱茶提取物(0.5g、2g 和 4g/kgBW/天)。普洱茶显著降低了肥胖大鼠的总体重和各种脂肪垫的重量。普洱茶给药还显著降低了 HFD 诱导肥胖大鼠的血浆总胆固醇、甘油三酯浓度和低密度脂蛋白胆固醇水平,但对高密度脂蛋白胆固醇水平没有影响。此外,普洱茶显著增加了 HFD 诱导肥胖大鼠附睾脂肪组织中脂蛋白脂肪酶、肝脂肪酶和激素敏感脂肪酶的活性。实时逆转录聚合酶链反应结果分析表明,普洱茶显著增强了 HFD 诱导肥胖大鼠激素敏感脂肪酶的 mRNA 水平。这些结果表明,普洱茶减轻了内脏脂肪堆积,改善了 HFD 诱导肥胖大鼠的高血脂症。