与年龄相匹配的男性相比,在绝经后女性服用鱼油补充剂后,血n-3多不和脂肪酸的增加更高
David C R Ku1, Insaf Loukil2, Annick Vachon2
1Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada.
Lipids
|February 23, 2026
概括
鱼油补充剂在老年人中显著增加了欧米茄-3脂肪酸. 与男性相比,女性对血中脂酸eicosapentaenoic acid (EPA) 和docosahexaenoic acid (DHA) 的反应更大.
科学领域:
- 营养科学 营养科学
- 生物化学 生物化学
- 老年学是一门学科.
背景情况:
- 欧米茄-3 (n-3) 多不和脂肪酸 (PUFA),包括乙酸 (EPA) 和酸 (DHA),对健康至关重要.
- 在老年人中,n-3PUFA的代谢途径,特别是中间体,尚未完全理解.
- 以前的研究还没有完全描述鱼油补充剂对老年人群n-3PUFA代谢的影响.
研究的目的:
- 研究鱼油补充剂对老年人n-3PUFA水平的影响.
- 为了检查补充剂后EPA和DHA代谢中的潜在的性别依赖差异.
- 描述鱼油对特定n-3PUFA中间体的影响.
主要方法:
- 一项为期5个月的鱼油补充剂研究,涉及10名绝经后女性和10名年龄相匹配的男性.
- 通过鱼油补充剂每天摄入1.8g EPA和1.4g DHA.
- 在补充剂之前和之后分析血脂和三糖醇n-3PUFA水平.
主要成果:
- 显著的性别 × 补充相互作用效应观察到血脂EPA,DHA和24:5n-3.
- 与男性相比,女性在补充后的血脂EPA (69%),DHA (101%) 和24:5n-3 (182%) 的水平显着更高.
- 补充导致血三糖醇 (EPA,DHA,22:5n-3和24:5n-3) 在两性 (83%-327%) 中显著增加.
结论:
- 鱼油补充剂有效地增加了健康的老年人中的n-3PUFA水平.
- 在服用鱼油补充剂后,DHA和相关中间体的新陈代谢在这个年龄组中显示出性别依赖的模式.
- 研究结果表明,基于性别的个性化n-3PUFA补充策略可能对老年人有益.
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