Body composition, serum lipid levels, and transcriptomic characterization in the adipose tissue of male pigs in response to sex hormone deficiency

文献类型： 外文期刊

第一作者： Yao, Yuchang

作者： Yao, Yuchang;Ma, Hongying;Wu, Keliang;Shao, Yonggang;Han, Wenpeng;Zhao, Chunjiang;Wu, Changxin;Yao, Yuchang;Cai, Zhaowei;Xu, Ningying;Qi, Meiyu

作者机构：

关键词： Transcriptome;Serum lipid level;Adipose tissue;Castration;Hypogonadism;Male pig

期刊名称：GENE （ 影响因子：3.688； 五年影响因子：3.329 ）

ISSN： 0378-1119

年卷期： 2018 年 646 卷

页码：

收录情况： SCI

摘要： It is known that the male hypogonadism plays an important role in regulating adipose metabolism. In the present study, fifteen pairs of full male sibs were divided into a castrated group and an intact group with a paired experiment design. The pigs were slaughtered at an age of 175 days. The carcass characteristics and fat deposit of the studied animal were measured, and the hormone and serum lipid levels of the peripheral blood samples were determined, and the differentially expressed genes of the back fat between the two groups were screened with porcine genome array. Our results showed that the absence of male gonadal steroids attributed to castration significantly raised the serum lipid levels and increased fat accumulation in the pigs. A total of 225 differentially expressed genes were identified between the boars and barrows and 135 of them were upregulated. The analysis of Gene Ontology categories and KEGG pathway indicated that these differentially expressed genes were mainly involved in metabolism of lipid, carbohydrate, amino acid, xenobiotics biodegradation, and immune diseases pathways. Our results indicated that there were higher capacity of fatty acid of synthesis, enhanced uptaking capacity of fatty acids and cholesterol, inhibited lipolysis, and enhanced carbohydrate metabolism in the adipose tissue of barrows compared to boars. The findings of the present study provide new insight into the mechanisms of adipose metabolism induced by hormone deficiency.

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