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Glutamine supplementation alleviated aortic atherosclerosis in mice model and in vitro

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机构: [1]Department of Cardiology, National Clinical Research Centre for Geriatric Diseases, Xuanwu Hospital, Capital Medical University, Beijing, China. [2]Department of Evidence-Based Medicine, Xuanwu Hospital, Capital Medical University, Beijing, China. [3]Surgical Laboratory, Xuanwu Hospital, Capital Medical University, Beijing, China.
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关键词: atherosclerosis glutamine glycolysis inflammation O-GlcNAc oxidative stress

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This study aimed to clarify the role of glutamine in atherosclerosis and its participating mechanism. Forty C57BL/6J mice were divided into wild control (wild Con), ApoE- /- control (ApoE- /- Con), glutamine + ApoE- /- control (Glut + ApoE- /- Con), ApoE- /- high fat diet (ApoE- /- HFD), and glutamine + ApoE- /- HFD (Glut + ApoE- /- HFD) groups. The degree of atherosclerosis, western blotting, and multiomics were detected at 18 weeks. An in vitro study was also performed. Glutamine treatment significantly decreased the degree of aortic atherosclerosis (p = 0.03). O-GlcNAcylation (O-GlcNAc), IL-1β, IL-1α, and pyruvate kinase M2 (PKM2) in the ApoE- /- HFD group were significantly higher than those in the ApoE- /- Con group (p < 0.05). These differences were attenuated by glutamine treatment (p < 0.05), and aggravated by O-GlcNA transferase (OGT) overexpression in the in vitro study (p < 0.05). Multiomics showed that the ApoE- /- HFD group had higher levels of oxidative stress regulatory molecules (guanine deaminase [GUAD], xanthine dehydrogenase [XDH]), proinflammatory regulatory molecules (myristic acid and myristoleic acid), and stress granules regulatory molecules (caprin-1 and deoxyribose-phosphate aldolase [DERA]) (p < 0.05). These differences were attenuated by glutamine treatment (p < 0.05). We conclude that glutamine supplementation might alleviate atherosclerosis through downregulation of O-GlcNAc, glycolysis, oxidative stress, and proinflammatory pathway.© 2023 Wiley-VCH GmbH.

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出版当年[2023]版:
大类 | 4 区 生物学
小类 | 4 区 生化研究方法 4 区 生化与分子生物学
最新[2025]版:
大类 | 3 区 生物学
小类 | 3 区 生化研究方法 4 区 生化与分子生物学
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出版当年[2022]版:
Q2 BIOCHEMICAL RESEARCH METHODS Q3 BIOCHEMISTRY & MOLECULAR BIOLOGY
最新[2023]版:
Q2 BIOCHEMICAL RESEARCH METHODS Q2 BIOCHEMISTRY & MOLECULAR BIOLOGY

影响因子: 最新[2023版] 最新五年平均 出版当年[2022版] 出版当年五年平均 出版前一年[2021版] 出版后一年[2023版]

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第一作者机构: [1]Department of Cardiology, National Clinical Research Centre for Geriatric Diseases, Xuanwu Hospital, Capital Medical University, Beijing, China.
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通讯机构: [1]Department of Cardiology, National Clinical Research Centre for Geriatric Diseases, Xuanwu Hospital, Capital Medical University, Beijing, China. [*1]Department of Cardiology, National Clinical Research Centre for Geriatric Diseases, Xuanwu Hospital, Capital Medical University, Beijing 100053, China.
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