在长期暴露于PM2.5和PM10后,血液中Kynurenine通路的变化:一个横截面研究
Churdsak Jaikang1,2, Giatgong Konguthaithip1,2, Yutti Amornlertwatana1,2
1Department of Forensic Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand.
Biomedicines
|September 28, 2024
概括
长期暴露在细颗粒物 (PM2.5和PM10) 中会破坏金氨酸通路,这是与炎症和疾病相关的过程. 减少颗粒物暴露对于防止不良健康结果至关重要.
科学领域:
- 环境健康 环境健康
- 生物化学 生物化学
- 毒理学 毒理学 毒理学
背景情况:
- 暴露于颗粒物 (PM2.5和PM10) 与炎症有关,导致呼吸道和心血管疾病.
- kynurenine 途径是托的关键代谢途径,与炎症过程有关.
- 了解慢性PM暴露对金氨酸通路的影响对于公共卫生至关重要.
研究的目的:
- 研究长期暴露于PM2.5和PM10对金氨酸通路的影响.
- 分析高与低PM暴露的个体中托代谢物和相关酶活动的变化.
主要方法:
- 横截面研究分析了来自低PM暴露 (LG) 和高PM暴露 (HG) 组的血液样本.
- 质子核磁共振光谱 (H-NMR) 用于量化托代谢物.
- 评估了与 kynurenine 途径相关的酶活动.
主要成果:
- 在高PM暴露组中观察到各种kynurenine途径代谢物的显着增加 (例如,血清素,kynurenic acid,L-氨酸).
- 在高PM暴露组中,注意到NAD和氨酸水平的降低.
- 在高PM暴露组中,酶活性变化包括降低氨酸2,3-二氧化酶和甲基胺酶,以及增加氨酸酶和氨酸单氧化酶.
结论:
- 长期暴露于PM2.5和PM10显著破坏了金氨酸通路.
- 这种干扰可能会导致炎症和非传染性疾病的发展.
- 尽量减少对颗粒物的暴露对于减轻对健康有害影响至关重要.
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