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学科主题: 基础医学
题名:
Pu-erh tea aqueous extracts lower atherosclerotic risk factors in a rat hyperlipidemia model
作者: Hou, Yan2; Shao, Wanfang1; Xiao, Rong3; Xu, Kunlong3; Ma, Zhizhong4; Johnstone, Brian H.5; Du, Yansheng6
关键词: Pu-erh tea ; Hyperlipidemia ; Obesity ; Serum lipid ; Lipid peroxidation
刊名: EXPERIMENTAL GERONTOLOGY
发表日期: 2009-06-01
DOI: 10.1016/j.exger.2009.03.007
卷: 44, 期:6-7, 页:434-439
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology
类目[WOS]: Geriatrics & Gerontology
研究领域[WOS]: Geriatrics & Gerontology
关键词[WOS]: SUPEROXIDE-DISMUTASE ; CARBON-TETRACHLORIDE ; HEALTH-BENEFITS ; GREEN TEA ; GSH-PX ; POLYPHENOLS ; ASSAY ; ACID ; BLOOD ; BLACK
英文摘要:

Pu-erh tea is believed to possess many beneficial health effects since it is a natural source of cardioprotective lipid lowering and antioxidant compounds, although, the major constituents putatively responsible for these beneficial effects remain unknown. In this study, we examined the effects of two commonly consumed forms of Pu-erh tea, fermented and unfermented, on weight gain, serum levels of lipids and lipoprotein, lipid oxidation, and blood antioxidant enzymes in a rat hyperlipidemia model. Hyperlipidemic rats were treated with water extracts of either 0.5, 1.5 or 3.0 mg/kg fermented or unfermented Pu-erh tea. Serum low density lipoprotein-cholesterol (LDL-C) and triglyceride levels were significantly lowered by tea extract compared to the control group. (p < 0.05) and in most cases were indistinguishable from rats fed normal chow, basal diet. Conversely, levels of high density lipoprotein-cholesterol (HDL-C) were elevated in the groups given daily doses of tea extract (p < 0.05). Compared to the hyperlipidemic control group, activities of superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) in serum were significantly elevated in Pu-erh tea-treated groups while levels of malondiadehyde (a byproduct of lipid peroxidation) decreased in the same groups. These effects were most pronounced in the groups treated with the highest dose of fermented Pu-erh tea extract. Our results suggest that Pu-erh tea exerts strong antioxidative and lipid-lowering effects and therefore can be used to reduce the risk of cardiovascular disorders. (C) 2009 Elsevier Inc. All rights reserved.

语种: 英语
所属项目编号: 2007BAD581304 ; 2007YNCXB-01-01
项目资助者: National Key Technology R&amp ; D Program of the People&prime ; s Republic of China ; Office of Biological Resources Innovation of Yunnan province
WOS记录号: WOS:000267584900012
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.bjmu.edu.cn/handle/400002259/56995
Appears in Collections:基础医学院_期刊论文

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作者单位: 1.Yunnan Agr Univ, Coll Long Run Pu Erh Tea, Kunming 650201, Yunnan, Peoples R China
2.Certificate Assessment Ctr Yunnan Pu Erh Tea, Kunming 650201, Yunnan, Peoples R China
3.Yunnan Agr Univ, Coll Anim Sci & Technol, Kunming 650201, Yunnan, Peoples R China
4.Peking Univ, Basic Med Sch, Beijing 100083, Peoples R China
5.Indiana Univ, Sch Med, Dept Med, Indianapolis, IN 46202 USA
6.Indiana Univ, Sch Med, Dept Neurol, Indianapolis, IN 46202 USA

Recommended Citation:
Hou, Yan,Shao, Wanfang,Xiao, Rong,et al. Pu-erh tea aqueous extracts lower atherosclerotic risk factors in a rat hyperlipidemia model[J]. EXPERIMENTAL GERONTOLOGY,2009,44(6-7):434-439.
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