作为代谢生物标志物,N-Lactoyl氨基酸区分了低和高的运动反应
Maha Sellami1, Khaled Naja2, Shamma Almuraikhy2
1Physical Education Department (PE), College of Education, Qatar University, Doha, Qatar.
Biology of sport
|April 4, 2025
概括
较低的运动反应可能源于较少的慢肌纤维. 这项研究发现N-lactoyl氨基酸,像N-lactoylphenylalanine一样,表明运动耐受性差和肌肉疲劳. 这些代谢物可以预测运动有效性.
科学领域:
- 运动生理学 运动生理学
- 代谢学 代谢学 代谢学
- 遗传学 是一个遗传学.
背景情况:
- 有氧运动对心血管健康有好处,但个人的反应各不相同.
- 较差的运动耐受性可能与低百分比的慢肌纤维有关.
- 识别代谢差异可以阐明各种运动反应.
研究的目的:
- 为了识别对有氧运动有较低和较高反应的代谢特征,区分有氧运动的低和高反应者.
- 为了研究N-lactoyl氨基酸在运动反应中的作用.
- 为了将这些代谢物相关的基因表达与肌肉纤维类型相关联.
主要方法:
- 在43名年轻女性中,在运动干预前后对1039种代谢物进行非向代谢.
- 基于6分钟步行距离改善的参与者的分类.
- 在GTEx项目的791个个体中分析CNDP2的基因表达.
主要成果:
- 低响应者 (Δ6-MWD = 27m) 呈现出较高的血清N-lactoyl氨基酸,包括N-lactoylphenylalanine (Lac-Phe).
- CNDP2的基因表达,一种Lac-Phe合成的酶,与缓慢抽的肌肉纤维负面相关 (p < 0.0001).
结论:
- N-lactoyl氨基酸可以作为肌肉疲劳和运动反应差的生物标志物.
- 这些代谢物可能表明炼的有效性,并有助于区分个体反应.
- 研究结果表明,特定代谢物,肌肉纤维类型和运动适应性之间存在联系.
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