在雄性鼠肝脂肪酸氧化和生成增加后,血中酸和TCA循环代谢物的变化
Simon Nitter Dankel1, Tine-Lise Kalleklev1, Siri Lunde Tungland2
1Department of Clinical Science, University of Bergen, N-5021 Bergen, Norway.
International journal of molecular sciences
|November 14, 2023
概括
增强肝脏线粒体脂肪酸氧化与3 - 脂肪酸改变三糖酸循环代谢产物. 这表明了代谢健康和疾病预后的潜在生物标志物.
科学领域:
- 生物化学 生物化学
- 代谢性疾病研究研究
- 线粒体功能的功能
背景情况:
- 肝脏线粒体脂肪酸氧化和三碳酸 (TCA) 循环活动的改变与生活方式相关的疾病有关.
- 反映这些代谢变化的循环生物标志物可以为疾病管理提供预后价值.
研究的目的:
- 为了研究TCA循环代谢物的肝脏和全身变化后药理学增强肝脏线粒体脂肪酸氧化.
- 阐明肝脏线粒体活动的机制并确定潜在的生物标志物.
主要方法:
- 雄性Wistar大鼠接受了3 - 脂肪酸 (例如,四基酸,TTA) 的治疗.
- 测量包括肝脏和血TCA循环中间体,厌血基质 (LC-MS/MS),血,乙烯基 (HPLC-MS/MS),基因表达 (qPCR) 和酶活性.
- 分析重点是代谢物比率的变化,例如子/非化脂肪酸 (NEFA) 和乙卡尼丁/棕卡尼丁 (C2/C16).
主要成果:
- TTA治疗增加了肝脂肪酸氧化,导致更高的血体/NEFA比率和更低的血马洛尼尔-CoA.
- 血乙卡尼丁/棕卡尼丁 (C2/C16) 的比率增加,肝脏度降低,血中酸盐度增加.
- 观察到血中糖酸盐,酸盐和2-氧质酸盐度升高,同时增加了关键的TCA循环相关基因的表达.
结论:
- 通过3脂肪酸诱导肝脏线粒体脂肪酸β-氧化,改变了TCA循环代谢物概况.
- 观察到的变化包括肝脏中酸盐的减少和血中酸盐,酸盐,酸盐和2-基酸盐的增加.
- 这些发现表明肝脏线粒体活性和相关的代谢健康的潜在循环生物标志物.
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