活性维生素D纠正1α-氧酶淘汰小鼠高血压表现的脑血管功能障碍和异常血管压力表达
Wei Zhang1, Yingying Hu1, Luqing Zhang2
1Kangda College, Nanjing Medical University.
Journal of nutritional science and vitaminology
|August 31, 2025
概括
维生素D (1,25(OH) 2D3) 保护大脑免受高血压相关的氧化应激. 补充剂或抗氧化剂治疗在缺乏1α-基酶的小鼠中纠正了高血压和脑损伤.
科学领域:
- 神经科学
- 内分泌学
- 心血管研究
背景情况:
- 维生素D对大脑健康起作用,尤其是在高血压的情况下.
- 1,25- 二氧化维生素D3 (1,25(OH) 2D3) 通过抗氧化机制显示出调节高血压和中央胺-血管激素系统的潜力.
- 1α-基酶淘汰的小鼠表现出高血压和相关的大脑氧化应激.
研究的目的:
- 调查内源性或外源性1,25 (OH) 2D3缺乏和补充对脑血管功能和血管压素表达的影响.
- 确定抗氧化机制在这些变化中的作用.
- 评估 1,25 ((OH) 2D3 在缓解高血压引起的大脑损伤方面的治疗潜力.
主要方法:
- 使用1α-基酶淘汰 (1α(OH) 酶-/-) 小鼠及其野生类型的 littermates.
- 进行了不同的饮食干预:定期饮食,高/高的救援饮食与N-乙-L-氨酸,和1,25(OH) 2D3皮下注射.
- 评估高血压表型,血管压素表达和大脑/血液氧化应激水平.
主要成果:
- 1α(OH) 酶-/-小鼠表现出高血压表现型,其特征是大脑和血液中血管压素表达升高和氧化应激升高.
- 用1,25(OH) 2D3或N-乙-L-氨酸的组合治疗和救援饮食有效地纠正了这些病态变化.
- 脑血管功能和血管压素水平受到维生素D状态和抗氧化剂干预的调节.
结论:
- 1,25-二维生素D3缺乏会加剧与高血压相关的大脑氧化应激和血管压素失调.
- 内源和外源的1,25(OH) 2D3,以及抗氧化策略,都显示出对高血压引起的大脑损伤的保护作用.
- 1,25(OH) 2D3 是一种潜在的治疗策略,用于治疗与高血压和氧化应激相关的脑部并发症.
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