“高原明珠”绿茶对自发性高血压大鼠血压、心肌超微结构及血管紧张素Ⅱ含量影响的研究  

Effect of "Plateau Bright Pearl"Green Tea on Blood Pressure,Myocardial Microstructure and Level of Plasma Angiotensin Ⅱ(Ang Ⅱ) in Spontaneous Hypertensive rats

作　　者：罗显扬 梁月荣[2] 周国兰 刘声传 郑文佳 

机构地区：[1]贵州省茶叶研究所,贵州贵阳550006 [2]浙江大学,浙江杭州310029

出　　处：《贵州茶叶》2011年第3期16-20,2,共5页Journal of Guizhou Tea

基　　金：贵州省科技重大茶叶专项"贵州茶产业关键技术研究与示范"[黔科合重大专项字(2008)6015];贵州省科技厅;"‘高原明珠’降压茶保健食品核心技术研究及新产品开发"[黔科合体Z字(2010)4002]

摘　　要：初步探讨了"高原明珠"拼配绿茶对自发性高血压大鼠(SHR)血压、血浆血管紧张素Ⅱ(AngⅡ)含量及其左心室组织超微结构的影响。结果表明:"高原明珠"拼配绿茶能显著降低SHR大鼠的血压和血浆AngII含量,改善左心室的线粒体和肌原纤维的超微结构。"高原明珠"拼配绿茶具有减肥、保护心脏及降血压等生理保健功能。Zinc,selenium and other trace elements which are necessary for human body are rich in tea,further,it also are rich with γ-aminobutyric acid and tea polyphenols that could lower blood pressure and inhibit heart and brain disease.In order to investigate effect of ＂Plateau Bright Pearl＂ commixed green tea on blood pressure,myocardial microstructure and level of plasma angiotensin II（Ang II） in spontaneous hypertensive（SHR） rats,＂plateau bright pearl＂commixed green tea containing these substances and elements were uesd,and intragastric administration at dosages 2.0 g kg-1 d-1（high dosage groups）,1.0 g kg-1 d-1（Medium dosage groups）,0.2 g kg-1 d-1（low dosage groups） and 0 g kg-1 d-1（the control group）in spontaneous hypertensive rats were conducted,respectively.The results showed that：After intragastric administrating ＂Plateau Bright Pearl＂commixed green tea in SHR rats,its blood pressure and plasma Ang II content were significantly lowered,and ultra structures of left ventricular mitochondrion and myofibrillae were improved.It is considered that ＂Plateau Bright Pearl＂commixed green tea had many physiological health functions,such as lose weight,protect the heart,lower blood pressure,etc.

关 键 词：拼配绿茶 高血压 自发性高血压大鼠 血管紧张素Ⅱ 超微结构 

分 类 号：S571.1[农业科学—茶叶生产加工]