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Chronic treatment with probucol effectively inhibits progression of pulmonary hypertension in rats

机译:普罗布考慢性治疗有效抑制大鼠肺动脉高压的发展

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It has been reported that probucol is a lipid-lowering agent having a strong antioxidative effect and inhibitory action on vascular smooth muscle cell proliferation. In this work, we studied the effect of treatment with a 1% probucol diet on pulmonary hypertension induced by monocrotaline (MCT) in rats. Rats were fed a control or 1% probucol-supplemented diet for 7 days, then given a single subcutaneous injection of 60 mg/kg MCT or saline, and continuously fed the same diet for 20 days, respectively. MCT caused an increase in right ventricular systolic pressure (RVSP), an indicator of pulmonary hypertension, and central venous pressure (CVP) on day 20. In rats receiving a diet containing 1% probucol, RVSP was significantly lower than that in rats treated with control diet, and CVP remained essentially at the basal level. On day 20, MCT also caused an increase in the ratio of right ventricular (RV) to body weight (BW), compared to the control value, indicating the development of RV hypertrophy in MCT rats. RV hypertrophy was significantly inhibited in 1% probucol-treated rats. These findings suggest that chronic treatment with probucol effectively inhibits the progression of pulmonary hypertension in rats. (C) 2000 Elsevier Science Inc. All rights reserved. [References: 20]
机译:据报道,普罗布考是一种降脂剂,具有很强的抗氧化作用和对血管平滑肌细胞增殖的抑制作用。在这项工作中,我们研究了用1%的普罗布考饮食治疗对大鼠中芥子油碱(MCT)诱发的肺动脉高压的影响。给大鼠喂食对照或补充1%普罗布考的饮食7天,然后一次皮下注射60 mg / kg MCT或盐水,并分别连续喂食20天。第20天,MCT导致右心室收缩压(RVSP)升高,这是肺动脉高压的指标,而中心静脉压(CVP)升高。在接受含1%普罗布考饮食的大鼠中,RVSP显着低于接受CPR治疗的大鼠对照饮食,CVP基本保持在基础水平。在第20天,与对照组相比,MCT还导致右心室(RV)与体重(BW)的比率增加,表明MCT大鼠出现RV肥大。 1%普罗布考治疗的大鼠右室肥大得到明显抑制。这些发现表明,用普罗布考进行慢性治疗可有效抑制大鼠肺动脉高压的发展。 (C)2000 Elsevier Science Inc.保留所有权利。 [参考:20]

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