Evaluation of Anti-Obesity Activity, Acute Toxicity, and Subacute Toxicity of Probiotic Dark Tea

文献类型： 外文期刊

第一作者： Ling, Wang

作者： Ling, Wang;Wang, Guangguang;Fan, Wentong;Sun, Kai;Bian, Jianchun;Li, Shungeng;Ling, Wang;Wang, Guangguang;Fan, Wentong;Sun, Kai;Bian, Jianchun;Zhang, Xingcai;Xu, Yongquan;Gao, Ying;Du, Qizhen

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关键词： probiotic dark tea; Sprague-Dawley (SD) rats; acute toxicity; subacute toxicity; anti-obesity; dyslipidemia

期刊名称：BIOMOLECULES （ 影响因子：4.879； 五年影响因子：5.362 ）

ISSN： 2218-273X

年卷期： 2018 年 8 卷 4 期

页码：

收录情况： SCI

摘要： Probiotic dark tea (PDT) is a novel kind of dark tea produced by fresh albino tea leaves and fermented with specific probiotics. Our study demonstrates that PDT can ameliorate high-fat diet-induced overweight and lipid metabolic disorders and shows no acute or subacute toxicity in Sprague-Dawley (SD) rats. Daily intragastric administration of 5% PDT infusion for 14 days caused no obvious effect on general physiological features and behaviors of rats. Oral administration of 1%, 2%, and 3% of PDT infusion for six weeks had no influence on the biochemistry and histopathology of rats' organs and blood, as well as the body weight and ratios of organ/body weight. To investigate its anti-obesity activity, SD rats were randomly divided into four groups, treated with normal diet + water (Group I), high-fat diet + water (Group II), high-fat diet + 3% traditional dark tea infusion (Group III), high-fat diet + 3% PDT infusion (Group IV). After six weeks, the body weight, serum total triacylglycerol (TG) and serum total cholesterol (TC) levels of rats in Group II were significantly increased and the high-density lipoprotein cholesterol (HDL) levels were significantly decreased compared with those in the other three groups. Both traditional dark tea and PDT treatment effectively counteracted the adverse effect of a high-fat diet in SD rats. These results suggest that PDT could be applied for the prevention of obesity, which ameliorates overweight and lipid metabolic disorders and which shows no acute or subacute toxicity.

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