【摘 要】
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Summary: Chronic treatment with Salvia Miltiorrhiza preventing left ventricular hypertrophy(LVH) and its possible mechanism-inhibiting the action of cardiac ald
【机 构】
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Department of Emergency Medicine,Department of Pathology
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Summary: Chronic treatment with Salvia Miltiorrhiza preventing left ventricular hypertrophy(LVH) and its possible mechanism-inhibiting the action of cardiac aldosterone in spontaneouslyhypertensive rats (SHR) were investigated. Normotensive Wistar-kyoto (WKY) rats and SHRswere used. Part of SHRs was treated with Salvia Miltiorrhiza for 12 weeks. Systolic blood pres-sure (SBP) and left ventricular mass index were measured. Sections of heart tissue were stainedwith HE method and VanGieson method. Collagen volume fraction was determined in the left ven-tricle by automatically quantitative morphometry. Cardiac aldosterone concentration was measuredby radioimmunoassay. The results indicated that compared with WKY rats, SHRs exhibited high-er SBP, left ventricular collagen volume fraction, and aldosterone concentration (all P＜0. 05).After the treatment with Salvia Miltiorrhiza, SBP, left ventricular collagen volume fraction, andaldosterone concentration in SHR were decreased as compared with control group (P＜0. 05) ex-cept SBP. It was concluded that chronic treatment with Salvia Miltiorrhiza could prevent left ven-tricular hypertrophy in SHR, significantly inhibit collagen compositions in left ventricle. Themechanism was probably related with the inhibition of the cardiac aldosterone action.
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