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首页> 外文期刊>Meat Science >Differential expression of genes associated with lipid metabolism in longissimus dorsi of Korean bulls and steers
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Differential expression of genes associated with lipid metabolism in longissimus dorsi of Korean bulls and steers

机译：牛公牛背最长肌脂质代谢相关基因的差异表达

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摘要

The objective of this study was to compare expression of genes associated with lipid deposition and removal between bulls and steers in the longissimus dorsi muscle (LM) tissue of Korean cattle. Castration increased the expression of lipid uptake lipoprotein lipase, fatty acid translocase, and fatty acid transport protein 1 in LM. Castration increased lipogenic gene expression of both acetyl-CoA carboxylase and fatty acid synthase. In contrast, castration downregulated lipolytic gene expression of both adipose triglyceride lipase (ATGL) and monoglyceride lipase. Steers showed higher expression levels of insulin signaling phospho-v-akt murine thy-moma viral oncogene homolog 1 than bulls but lower protein levels of nuclear Forkhead box 0 1 (Fox01) than bulls, suggesting that increased insulin signaling following castration decreases nuclear Fox01 levels, leading to downregulation of ATGL gene expression. These findings suggest that castration contributes to increases in lipid uptake and lipogenesis and a decrease in lipolysis, resulting in improved marbling.
机译：这项研究的目的是比较公牛和ers牛在朝鲜牛背最长肌（LM）组织中与脂质沉积和清除相关的基因表达。去势增加了LM中脂质摄取脂蛋白脂肪酶，脂肪酸转位酶和脂肪酸转运蛋白1的表达。去势增加了乙酰辅酶A羧化酶和脂肪酸合酶的脂肪生成基因表达。相比之下，去势下调了脂肪甘油三酸酯脂肪酶（ATGL）和甘油单酸酯脂肪酶的脂解基因表达。牛ers牛的胰岛素信号转导磷酸-v-akt鼠胸腺瘤病毒致癌基因同系物1的表达水平高于公牛，但核叉头盒0 1（Fox01）的蛋白水平低于公牛，这表明，割后胰岛素信号转导增加会降低核Fox01水平。 ，导致ATGL基因表达下调。这些发现表明cast割有助于增加脂质的摄取和脂肪生成，并减少脂解作用，从而改善大理石花纹。

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  • 来源
    《Meat Science》 |2012年第3期|p.284-293|共10页
  • 作者

    Jin Jong Bong; Jin Young Jeong; Panchamoorthy Rajasekar; Young Moo Cho; Eung Gi Kwon; Hyeong Cheol Kim; Bong Hyun Paek; Myunggi Baik;

  • 作者单位

    Department of Molecular Biotechnology, WCU-RNNM, Biotechnology Research Institute, Chonnam National University, Cwangju 500-757, Republic of Korea;

    Department of Molecular Biotechnology, WCU-RNNM, Biotechnology Research Institute, Chonnam National University, Cwangju 500-757, Republic of Korea;

    Department of Molecular Biotechnology, WCU-RNNM, Biotechnology Research Institute, Chonnam National University, Cwangju 500-757, Republic of Korea;

    National Institute of Animal Science, RDA, Suwon 441-706, Republic of Korea;

    National Institute of Animal Science, RDA, Suwon 441-706, Republic of Korea;

    National Institute of Animal Science, RDA, Suwon 441-706, Republic of Korea;

    National Institute of Animal Science, RDA, Suwon 441-706, Republic of Korea;

    Department of Molecular Biotechnology, WCU-RNNM, Biotechnology Research Institute, Chonnam National University, Cwangju 500-757, Republic of Korea;

  • 收录信息 美国《科学引文索引》(SCI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    korean cattle; lipid uptake; lipogenesis; lipolysis; marbling; longissimus dorsi;

    机译：韩国牛脂质摄取;脂肪生成脂肪分解大理石花纹背最长背;

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