Aims Smoking, hypertension, hyperlipidemia, and diabetes are considered to increase the incidence of peripheral arterial disease (PAD). They can activate endogenous free radicals, cause inflammation and oxidative stress, and lead to endothelial cell dysfunction. Hydrogen (H2) has been proven to decrease oxidative stress, improve cell function, and reduce chronic inflammation. The purpose of this research was to validate the role of H2 in individuals who are at risk of PAD.Methods Sixty subjects were randomly assigned to placebo (PBO) group or H2-rich water (HRW) group and drank either bottled pure water or H2-rich water (245 mL/time, 3 times/d) for ten weeks.Results The pulse wave velocity was ameliorated in the HRW group with no significant change in the ankle-brachial index. The serum total cholesterol of the HRW group was significantly reduced compared to the placebo group. In addition, compared to baseline, the levels of lipoprotein(a) was decreased, the malondialdehyde content was reduced, the superoxide dismutase activity was increased, and the expression of intercellular cell adhesion molecule-1 was decreased significantly in the HRW group. The oxidized phospholipid of 1-palmitoyl-2-azelaoyl-sn-glycero-3-phosphatidylcholine level in the HRW group were significantly reduced compared to the placebo group. Finally, H2 significantly improved the antioxidant, antiinflammatory, and antiapoptotic abilities of high-density lipoprotein (HDL).Conclusions Drinking HRW can improve vascular sclerosis indicators, improve dyslipidemia, reduce vascular oxidative stress and inflammation, and improve HDL function. H2 may be used to prevent and relieve PAD caused by major risk factors such as smoking, hypertension, hyperlipidemia, and diabetes.

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乐备实（上海优宁维生物科技股份有限公司旗下全资子公司），是国内专注于提供高质量蛋白检测以及组学分析服务的实验服务专家，自2018年成立以来，乐备实不断寻求突破，公司的服务技术平台已扩展到单细胞测序、空间多组学、流式检测、超敏电化学发光、Luminex多因子检测、抗体芯片、PCR Array、ELISA、Elispot、PLA蛋白互作、多色免疫组化、DSP空间多组学等30多个，建立起了一套涵盖基因、蛋白、细胞以及组织水平实验的完整检测体系。

 
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