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首页> 外文期刊>Canadian Journal of Physiology and Pharmacology >Oral supplementation with glycine reduces oxidative stress in patients with metabolic syndrome, improving their systolic blood pressure
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Oral supplementation with glycine reduces oxidative stress in patients with metabolic syndrome, improving their systolic blood pressure

机译:口服补充甘氨酸可减少代谢综合征患者的氧化应激,改善其收缩压

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摘要

Reactive oxygen species derived from abdominal fat and uncontrolled glucose metabolism are contributing factors to both oxidative stress and the development of metabolic syndrome (MetS). This study was designed to evaluate the effects of daily administration of an oral glycine supplement on antioxidant enzymes and lipid peroxidation in MetS patients. The study included 60 volunteers: 30 individuals that were supplemented with glycine (15 g/day) and 30 that were given a placebo for 3 months. We analysed thiobarbituric acid reactive substances (TBARS) and S-nitrosohemoglobin (SNO-Hb) in plasma; the enzymatic activities of glucose-6-phosphate dehydrogenase (G6PD), superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GPX) in erythrocytes; and the expression of CAT, GPX, and SOD2 in leukocytes. Individuals treated with glycine showed a 25% decrease in TBARS compared with the placebo-treated group. Furthermore, there was a 20% reduction in SOD-specific activity in the glycine-treated group, which correlated with SOD2 expression. G6PD activity and SNO-Hb levels increased in the glycine-treated male group. Systolic blood pressure (SBP) also showed a significant decrease in the glycine-treated men (p = 0.043). Glycine plays an important role in balancing the redox reactions in the human body, thus protecting against oxidative damage in MetS patients.
机译:源自腹部脂肪的活性氧和不受控制的葡萄糖代谢是氧化应激和代谢综合征(MetS)发展的因素。这项研究旨在评估每日服用口服甘氨酸补充剂对MetS患者的抗氧化酶和脂质过氧化的影响。该研究包括60名志愿者:30名补充了甘氨酸(15 g /天)的人和30名接受了安慰剂治疗3个月的人。我们分析了血浆中的硫代巴比妥酸反应性物质(TBARS)和S-亚硝基血红蛋白(SNO-Hb);葡萄糖-6-磷酸脱氢酶(G6PD),超氧化物歧化酶(SOD),过氧化氢酶(CAT)和谷胱甘肽过氧化物酶(GPX)在红细胞中的酶活性;以及CAT,GPX和SOD2在白细胞中的表达。与安慰剂治疗组相比,甘氨酸治疗的个体的TBARS降低了25%。此外,甘氨酸处理组的SOD特异性活性降低了20%,这与SOD2表达相关。在甘氨酸治疗的雄性组中,G6PD活性和SNO-Hb水平升高。在接受甘氨酸治疗的男性中,收缩压(SBP)也显示出显着降低(p = 0.043)。甘氨酸在平衡人体内的氧化还原反应中起着重要作用,因此可以保护MetS患者免受氧化损伤。

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