酒精和低铁诱导的抗氧化剂和能量代谢的变化与蛋白质溶解乙化相关
Jesse A Thornton1, Zeynep C Koc1, Vincent E Sollars1
1Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25755, USA.
International journal of molecular sciences
|August 10, 2024
概括
饮食中铁的限制可能会通过增加蛋白质乙化和减少抗氧化防御来加剧酒精诱导的肝损伤. 这一发现表明,减少铁可能不是对酒精性肝病的有效策略.
科学领域:
- 肝病学 肝病学是一种肝病学.
- 营养科学 营养科学
- 生物化学 生物化学
背景情况:
- 慢性饮酒会导致肝应激和酒精性肝病.
- 铁在乙醇引起的肝损伤中的作用需要进一步阐明.
- 正在探索饮食干预措施,以减轻与酒精有关的肝损伤.
研究的目的:
- 研究铁在乙醇诱导的肝应激中的作用.
- 为了测试减轻饮食铁摄入量降低酒精诱导的肝损伤的假设.
- 检查铁限制对与酒精性肝病相关的代谢变化的影响.
主要方法:
- 一种双人养的小鼠模型被用液体饮食治疗了22周.
- 实行了乙醇暴露和饮食铁限制.
- 测量包括肝对身体体重比,铁代谢标记物 (费里丁,转移林受体1,费罗波丁1),蛋白质氨酸乙化,尼古丁胺胺氨基二核酸 (NAD+) 和NADH水平,依赖NAD的脱乙酶Sirtuin-3 (SIRT3) 表达,超氧化物失变酶 (SOD1和SOD2) 水平,以及氧化酸化 (OXPHOS) 复杂活动.
主要成果:
- 长期暴露于乙醇导致轻度肝应激,并降低了能量/抗氧化剂代谢.
- 饮食中铁的限制降低了费里和增加了转移素受体1的表达.
- 铁的限制加剧了蛋白质氨酸乙化,并进一步降低了NAD+和NADH水平,可能是通过减少SIRT3表达,并恶化了抗氧化剂代谢.
结论:
- 铁的限制可能会通过增加蛋白质乙化和抗氧化剂代谢受损而加剧乙醇诱导的肝损伤.
- 减少饮食中的铁摄入量可能不是对酒精性肝病的有效预防措施.
- 铁限制引起的代谢变化可能会阻碍饮食干预措施的有效性.
关键词:
FPN1 FPN1 FPN1 FPN1 FPN1 FPN1 FPN1 FPN1 FPN1 FPN1 FPN1 FPN1在FerLL上,FerL就是FerL.在TfR1中,TfR1是指TfR1.酒精代谢 酒精代谢抗氧化剂和能量新陈代谢.费里丁是一种铁素.铁波丁 1 铁波丁 1 铁波丁铁的代谢 铁的代谢肝脏疾病 肝脏疾病溶氨酸乙化溶氨酸氧化酸化是一种氧化酸化.这里是Sirtuinsins的所在地.转移素受体的受体是转移素的受体.更多相关视频
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