机构地区:[1]成都市第一人民医院心血管内科,成都610041 [2]成都地奥制药集团公司基因工程实验室,成都610041 [3]四川省中医药科学院中医研究所,成都610016
出 处:《中国中西医结合杂志》2012年第9期1238-1244,共7页Chinese Journal of Integrated Traditional and Western Medicine
基 金:成都市卫生局2007年重大科技攻关课题(No.0702)
摘 要:目的比较温阳法、滋阴法、活血法及复合法对肾阳虚型心力衰竭大鼠心室重构(ventricular re-modeling,VR)及心功能的影响。方法采用切除双侧甲状腺组织后持续静脉滴注阿霉素的方法制备心肾阳虚型心力衰竭大鼠模型。随机分为模型组生理盐水6mL/(kg·d)灌胃、温阳组温阳健心灵浸膏6mL/(kg·d)灌胃、活血组川芎丹参浸膏6mL/(kg·d)灌胃、滋阴组麦冬知母浸膏6mL/(kg·d)灌胃及复合组阴阳双补健心浸膏6mL/(kg·d)灌胃,每组10只。另选取10只大鼠作为正常对照组(正常组),自由饮食饮水。各组连续干预4周。观察大鼠左心室收缩压(left ventricular systolic pressure,LVSP)、左心室舒张末压(left ventricular end diastolic pressure,LVEDP)、左心室内压最大上升和下降速率maximal rate of left ventricular pressure of development(+dp/dtmax) and maximal rate of left ventricular pressure of decline(-dp/dtmax),测量动脉收缩压(systolic blood pressure,SBP)及舒张压(diastolic blood pressure,DBP),计算平均动脉压(mean arterial pressure,MAP),记录心率(heart rate,HR)。称取心脏质量(heart mass,HM)、左心室(包含室间隔)质量(left ventricular mass,LVM)及右心室质量(right ventricular mass,RVM),计算心脏质量指数(heart mass index,HMI)和左心室质量指数(left ventricular mass index,LVMI)。采用RT-PCR法测定大鼠心肌基质金属蛋白酶9(Matrix metalloproteinase-9,MMP-9)、组织金属蛋白酶抑制剂-1(tissue inhibitors of matrixmetalloproteinase-1,TIMP-1)mRNA表达。采用双抗体夹心ELISA法测定血清MMP-9、TIMP-1、N末端脑钠肽(N-terminal pro-brain natriuretic peptide,NT-proBNP)的含量。结果与正常组比较,模型组HR、LVEDP、HM、LVM、HMI、RVM、LVMI、NT-proBNP、MMP-9含量及MMP-9mRNA升高,SBP、DBP、MAP、LVSP、±dp/dtmax、TIMP-1含量及TIMP-1mRNA降低,差异均有统计学意义(P<0.05)。与模型组比较,温阳组SBP、DBP及±dp/dtmax升高,LVEDP、NT-proBNP、MMP-9降低;活血组HR、LVObjective To observe the effects of warming yang method, nourishing yin method, activating blood method, and the combined treatment method on the ventricular remodeling (~ VR) and the heart function of heart failure (HF) rats of Shen-yang deficiency syndrome (SYDS). Methods The Sprague-Dawley (SD) HF rat model of SYDS was established by continuously intravenous dripping adriamycin after ectomizing bilateral thy- roid tissues. Rats were then randomly divided into the model group (administered with normal saline at the daily dose of 6 mL/kg by gastrogavage), the warming yang group (administered with Wenyang Jianxinling Extractum at the daily dose of 6 mL/kg by gastrogavage), the activating blood group (administered with Ligusticum Wallichfi and Salvia Miltiorrhiza Extractum at the daily dose of 6 mL/kg by gastrogavage), the nourishing yin group ( ad- ministered with Radix Ophiopogonis and Rhizoma Anemarrhenae Extractum at the daily dose of 6 mL/kg by gas- trogavage), and the combined treatment group ( administered with Yin-Yang Supplementing Extractum at the dai- ly dose of 6 mL/kg by gastrogavage), 10 in each group. Another 10 SD rats were taken as the normal control group. They ate food and drank water freely. All rats were intervened for four successive weeks. The left ventric- ular systolic pressure (LVSP), left ventricular end diastolic pressure (LVEDP), maximal rate of left ventricular pressure of development ( +dp/dtmax), and maximal rate of left ventricular pressure of decline (-dp/dtmax) were observed. The systolic blood pressure (SBP) and the diastolic blood pressure (DBP) were determined. The mean arterial pressure (MAP) was calculated. The heart rate (HR) was recorded. Then all rats were killed and their hearts were taken out to weigh the heart mass ( HM), the left ventricular mass ( LVM), the right ventric- ular mass (RVM). The heart mass index (HMI) and the left ventricular mass index (LVMI) were calculated. The
关 键 词:中医治法 心室重构 血流动力学 基质金属蛋白酶 N氨基末端脑钠肽前体 慢性心力衰竭
分 类 号:R259[医药卫生—中西医结合]
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