从MAPT研究中,ATPase抑制因子1,生长差异化因子-15和老年人营养状况之间的纵向关联
Laetitia Lengelé1, Yves Rolland1,2, Laurent O Martinez3
1Gérontopôle de Toulouse, Institut du Vieillissement, Centre Hospitalo-Universitaire de Toulouse, Toulouse, France.
概括
增长差异化因子-15 (GDF-15) 水平与老年人食欲丧失和体重减轻风险增加有关. ATPase抑制因子1 (IF1) 与营养状况没有显著的关联.
科学领域:
- 生物化学 生物化学
- 老年学是指老年学的学科.
- 营养科学 营养科学
背景情况:
- ATPase抑制因子1 (IF1) 和生长分化因子-15 (GDF-15) 是与年龄相关的线粒体功能障碍的潜在生物标志物.
- 这些因素与体重和食欲的调节有关.
研究的目的:
- 调查IF1和GDF-15水平与营养变量之间的关联.
- 在多域阿尔茨海默氏症预防试验 (MAPT) 研究中探索这些关联.
主要方法:
- 血IF1和GDF-15的水平在1年的随访时间被测量.
- 用微量营养评估 (MNA) 评分和食欲丧失来评估营养状况.
- 监测了5年的体重变化,以确定体重减轻.
主要成果:
- 在IF1水平和MNA得分,食欲丧失或体重减轻之间没有发现显著的关联.
- 较高的GDF-15水平与食欲丧失和在4年内体重减轻的风险明显增加有关.
- IF1/GDF-15水平和性别之间的相互作用没有显著影响结果.
结论:
- GDF-15的血水平与关键营养不良标准有关.
- 在老年人中,GDF-15可以作为营养状况和减肥风险的生物标志物.
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