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Updated: May 16, 2025

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多不和脂肪酸不平衡 - - 一种导致SARS CoV-2疾病严重性的因素
James P Chambers1, Luke T Daum2, Bernard P Arulanandam3
1Department of Molecular Microbiology and Immunology, The University of Texas at San Antonio, San Antonio, Texas 78249, USA.
Journal of nutrition and metabolism
|April 1, 2025
概括
严重的COVID-19与omega-6代谢物增加和omega-3SPM减少有关,从而影响炎症的解决. 欧米茄-3 PUFA 治疗改善了这种平衡,减少了有害的副产品.
科学领域:
- 生物化学 生物化学
- 免疫学 免疫学 免疫学
- 营养科学 营养科学
背景情况:
- 感染SARS-CoV-2会引发炎症,而解决失败会导致严重的疾病.
- 严重的COVID-19可能涉及亲炎性omega-6 (ω-6) 多不和脂肪酸 (PUFA) 和抗炎性omega-3 (ω-3) 衍生专用前溶解媒介 (SPM) 之间的不平衡.
研究的目的:
- 调查与对照组相比,严重的COVID-19患者的omega-6 (ω-6) PUFA代谢物是否升高.
- 评估omega-3 (ω-3) PUFA补充剂对SARS-CoV-2患者这些代谢物水平的影响.
主要方法:
- 对 ω-6 PUFA代谢物的分析,包括酸 (LA) 衍生物,如酸 (AA) 和其下游产品 (EET,HETE,前列腺素).
- 量化 ω-3 衍生的 SPM 和它们的前体.
- 在SARS-CoV-2患者的 ω-3 PUFA 治疗干预后测量代谢物变化.
主要成果:
- 在严重的COVID-19中观察到高水平的 ω-6 LA代谢物 (AA,EETs,HETEs,前列腺素E2).
- 在严重的COVID-19患者中发现 ω-3衍生的SPM水平降低.
- ω-3 PUFA治疗增加了SPM前体和EPA衍生的二醇,同时降低了有毒的狄荷-γ-烯酸 (9,10-和12,13-diHOMEs).
结论:
- 不平衡的 ω-6/ω-3 PUFA 饮食摄入量有助于SARS-CoV-2 的严重程度.
- 这种不平衡阻碍了 ω-3 依存的 SPM 介导炎症的解决.
- 增加AA的铁性过氧化与严重的COVID-19结局有关.
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