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Aging-related lipidomic changes in mouse serum, kidney, and heart by nanoflow ultrahigh-performance liquid chromatography-tandem mass spectrometry.
Journal of Chromatography A ( IF 3.8 ) Pub Date : 2020-01-03 , DOI: 10.1016/j.chroma.2020.460849
Jung Yong Eum 1 , Jong Cheol Lee 1 , Sun Shin Yi 2 , Il Yong Kim 3 , Je Kyung Seong 3 , Myeong Hee Moon 1
Affiliation  

Aging refers to the intracellular accumulation of reactive oxygen species that damages proteins, DNA, and lipids. As alterations in lipid metabolism may trigger metabolic disorders and the onset of metabolic diseases, changes in lipid profiles can be closely related to aging. In this study, a comprehensive lipidomic comparison between 4- and 25-month-old mice was performed to investigate age-induced changes in the lipid profiles of mouse serum, kidney, and heart using nanoflow ultrahigh-performance liquid chromatography-electrospray ionization-tandem mass spectrometry. Quantitative analysis of 279 of the 542 identified lipids revealed significant changes upon aging, mainly showing decreased levels in the three types of samples. Exceptionally, most triacylglycerols showed significant increases in heart tissue. The kidney was influenced more by aging than the serum and heart. The highly abundant lipids in each lipid class with significant decreases (> 2-fold, p < 0.01) were lysophosphatidic acid 18:1, lysophosphatidylinositol 20:4, and ceramide d:18:1/24:0 in serum; lysophosphatidylglycerol 16:0 in heart tissue; and eight phosphatidylethanolamines (20:4, 22:6, 36:2, 36:3, 38:4, 38:5, 38:6, 40:6, and 40:7), two cardiolipins (72:7 and 72:8), and lysophosphatidylcholine 18:0 in kidney tissue. The findings indicate the potential of lipidomic analysis to study characteristic age-related lipid changes.

中文翻译:

纳流超高效液相色谱-串联质谱法测定小鼠血清,肾脏和心脏中与衰老相关的脂质组学变化。

老化是指细胞内活性氧的积累,会破坏蛋白质,DNA和脂质。由于脂质代谢的改变可能引发代谢紊乱和代谢疾病的发作,因此脂质分布的变化可能与衰老密切相关。在这项研究中,使用纳流超高效液相色谱-电喷雾电离串联技术,对4月龄和25月龄小鼠的脂质组学进行了全面比较,以研究年龄引起的小鼠血清,肾脏和心脏脂质分布的变化。质谱。542种已鉴定脂质中的279种定量分析显示,老化后发生了显着变化,主要显示出这三种类型样品的水平下降。例外,大多数三酰基甘油在心脏组织中显示出明显的增加。肾脏受衰老的影响大于血清和心脏。每个脂质类别中的高度丰富的脂质,其血清中的溶血磷脂酸18:1,溶血磷脂酰肌醇20:4和神经酰胺d:18:1/24:0显着降低(> 2倍,p <0.01);心脏组织中的溶血磷脂酰甘油16:0; 和八种磷脂酰乙醇胺(20:4、22:6、36:2、36:3、38:4、38:5、38:6、40:6和40:7),两个心磷脂(72:7和72 :8),和肾组织中的溶血磷脂酰胆碱18:0。研究结果表明脂质组学研究潜在的年龄相关性脂质变化的潜力。心脏组织中为0;和八种磷脂酰乙醇胺(20:4、22:6、36:2、36:3、38:4、38:5、38:6、40:6和40:7),两个心磷脂(72:7和72 :8),和肾组织中的溶血磷脂酰胆碱18:0。研究结果表明脂质组学研究潜在的年龄相关性脂质变化的潜力。心脏组织中为0;和八种磷脂酰乙醇胺(20:4、22:6、36:2、36:3、38:4、38:5、38:6、40:6和40:7),两个心磷脂(72:7和72 :8),和肾组织中的溶血磷脂酰胆碱18:0。研究结果表明脂质组学研究潜在的年龄相关性脂质变化的潜力。
更新日期:2020-01-03
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