黑在心血管系统中的时代生物和细胞保护活性. 剂量是很重要的
Daniel P Cardinali1, Daniel E Vigo2,3
1Faculty of Medical Sciences, Pontificia Universidad Católica Argentina (UCA), Buenos Aires, Argentina. daniel_cardinali@uca.edu.ar.
Npj biological timing and sleep
|March 3, 2026
概括
循环节障碍和低黑激素水平在心血管疾病 (CVD) 中很常见. 可能需要高剂量的黑激素来实现对心血管疾病的细胞保护性益处,因为目前的低剂量试验可能不足.
科学领域:
- 时间生物学 时间生物学
- 心血管医学 心血管医学
- 生物化学 生物化学
背景情况:
- 心血管疾病 (CVD) 经常与昼夜干扰有关,其特点是睡眠障碍和轻度炎症.
- 血中黑激素的下降,这是一种具有抗氧化和抗炎性质的分子,是心血管疾病的常见标志.
- 黑色素在同步身体的中央和外围昼夜时钟 (慢生效应) 中起着至关重要的作用.
研究的目的:
- 研究黑激素在心血管疾病中的潜在治疗作用.
- 评估外源性黑激素给药对各种心血管参数的影响.
- 根据全米计算,确定黑素在心血管疾病中的细胞保护性益处的最佳剂量范围.
主要方法:
- 审查现有的研究对黑色素对心血管疾病的影响.
- 对黑激素对夜间高血压,血压,动脉脉动,血小板聚合和甲基荷胺水平的影响数据的分析.
- 应用基于动物研究的全度计算来估计有效的人类治疗剂量.
主要成果:
- 在心血管疾病中,外源性黑激素的使用已被证明可以降低夜间高血压,改善血压,降低动脉脉动,降低血小板聚合,降低血清甲醇胺水平.
- 黑素的使用会增加心脏中的副交感活动.
- 所有度计算表明,与当前临床试验中使用的剂量 (2-10毫克) 相比,在心血管疾病中获得显著的细胞保护性益处可能需要显著更高的黑素剂量 (100-200毫克/天).
结论:
- 黑素表现出与心血管健康相关的多种有益作用,包括抗氧化,抗炎和时代生物作用.
- 目前在心血管疾病临床试验中使用的低剂量黑激素可能不足以引起显著的治疗效果.
- 更高的黑激素剂量,可能在每天100-200毫克的范围内,需要对其在治疗心血管疾病中的有效性进行研究.
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