Castration reshapes the liver by altering fatty acid composition and metabolism in male mice
文献类型： 外文期刊
作者： Yao, Huan 1 ; Li, Dong 1 ; Cao, Xiaohan 1 ; Han, Xingfa 1 ; He, Jingyi 1 ; Cheng, Dan 1 ; Shang, Jiameng 1 ; Song, Tianzeng 2 ; Zeng, Xianyin 1 ;
作者机构： 1.Sichuan Agr Univ, Coll Life Sci, Yaan 625014, Sichuan, Peoples R China
2.Tibet Acad Agr & Anim Husb Sci, Inst Anim Sci, Lhasa 850009, Xizang, Peoples R China
关键词： Castration; Liver; Lipid metabolism; Mice
期刊名称：BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS （ 影响因子：2.5； 五年影响因子：2.7 ）
ISSN： 0006-291X
年卷期： 2024 年 727 卷
页码：
收录情况： SCI
摘要： Castration promotes subcutaneous fat deposition that may be associated with metabolic adaptations in the liver. However, fatty acid composition, abundance, and metabolic characteristics of the liver after castration are not fully understood. Our results showed that surgical castration significantly reduced water and food intake, reduced liver weight, and induced liver inflammation in mice. Transcriptome analyses revealed that castration enhanced fatty acid metabolism, particularly that of arachidonic and linoleic acids metabolism. Gas chromatography-mass spectrometry analysis revealed that castration altered the composition and relative abundance of fatty acids in the liver. The relative abundances of arachidonic and linoleic acids were significantly decreased in 4-week-old castrated mice. Analysis of fatty acid synthesis- and metabolism-related genes revealed that castration enhanced the transcription of fatty acid synthesis- and oxidation-related genes. Analyzing the level of key enzymes in the beta-oxidation and tricarboxylic acid cycle pathways of fatty acids in mitochondria, we found that castration enhanced the beta-oxidation of fatty acids in mitochondria, and also enhanced the protein level of the rate-limiting enzyme in the tricarboxylic acid cycle pathway, isocitrate dehydrogenase 2. These results comprehensively clarify metabolic changes in liver fatty acids after castration in mice of different ages and provide a reference for understanding castration-induced fat deposition from the perspective of liver fatty acid metabolism in male mice.
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