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首页> 外文期刊>Basic & clinical pharmacology & toxicology. >Effect of carvedilol and nebivolol on oxidative stress-related parameters and endothelial function in patients with essential hypertension.
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Effect of carvedilol and nebivolol on oxidative stress-related parameters and endothelial function in patients with essential hypertension.

机译:卡维地洛和奈比洛尔对原发性高血压患者氧化应激相关参数和内皮功能的影响。

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Oxidative stress and endothelial dysfunction have been associated with essential hypertension (EH) mechanisms. The purpose of this study was to evaluate the effect of carvedilol and nebivolol on the oxidative stress-related parameters and endothelial function in patients with EH. The studied population included 57 patients, either sex, between 30 and 75?years of age, with mild-to-moderate EH complications. Participants were randomized to receive either carvedilol (12.5?mg) (n?=?23) or nebivolol (5?mg) (n?=?21) for 12?weeks. Measurements included; 24-hr ambulatory blood pressure (BP), flow-mediated dilatation, levels of nitric oxide estimated as nitrite - a nitric oxide metabolite ( NO (2) ) - in plasma, and oxidative stress-related parameters in plasma and erythrocyte. EH patients who were treated with nebivolol or carvedilol showed systolic BP reductions of 17.4 and 19.9?mmHg, respectively, compared with baseline values (p?
机译:氧化应激和内皮功能障碍已与原发性高血压(EH)机制相关。这项研究的目的是评估卡维地洛和奈比洛尔对EH患者氧化应激相关参数和内皮功能的影响。研究人群包括57名年龄在30至75岁之间的男女,患有轻度至中度的EH并发症。参与者被随机分配接受卡维地洛(12.5?mg)(n?=?23)或奈比洛尔(5?mg)(n?=?21)12周。包括测量; 24小时动态血压(BP),血流介导的扩张,血浆中一氧化氮的水平估计为亚硝酸盐-一种一氧化氮代谢产物(NO(2))-以及血浆和红细胞中与氧化应激相关的参数。与基线值相比,用奈必洛尔或卡维地洛治疗的EH患者的收缩压分别降低了17.4和19.9?mmHg(p <0.01)。用依必洛尔和卡维地洛治疗后,舒张压分别降低了13.7和12.8?mmHg(p?<?0.01)(图2B)。奈比洛尔和卡维地洛相对于基线值显示内皮依赖性扩张分别高7.3%和8.1%(p <0.05)。卡维地洛组的血浆铁还原能力(FRAP)和还原型谷胱甘肽/氧化型谷胱甘肽(GSSH)比值分别比基础值高31.5%和29.6%。然而,奈必洛尔治疗的患者在治疗后没有显示出显着差异。另一方面,卡维地洛的使用不会改变NO(2)血浆浓度。然而,奈比洛尔在治疗后将这些水平提高了62.1%。总之,这项研究证明了两种β受体阻滞剂的抗高血压作用。但是,卡维地洛可以通过增加NO(2)浓度来提高抗氧化能力和奈必洛尔,从而介导这些作用。需要进一步研究以确定这些作用的分子机制。

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