Enhanced peroxisomal β-oxidation metabolism in visceral adipose tissues of high-fat diet-fed obesity-resistant C57BL/6 mice

  • Authors:
    • Wei-Dong Xie
    • Hua Wang
    • Jin-Fang Zhang
    • Jian-Na Li
    • Yi Can
    • Lv Qing
    • Hsiang-Fu Kung
    • Ya-Ou Zhang
  • View Affiliations

  • Published online on: January 20, 2011     https://doi.org/10.3892/etm.2011.208
  • Pages: 309-315
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Abstract

This study aimed to investigate the potential mechanisms of natural resistance to high-fat diet-induced obesity. Four-week-old C57BL/6 mice were fed a high-fat diet for 6 weeks and were then designated as high-fat diet-fed obesity-prone (HOP) and obesity-resistant (HOR) animals. Their blood biochemistry was evaluated, and visceral adipose tissue samples were subjected to proteomic, Western blot and quantitative real-time PCR (q-PCR) analyses. The HOR mice showed reduced visceral fat weight and size, as well as lowered serum lipid and leptin levels. Proteomic analysis showed that enoyl coenzyme A hydratase 1, peroxisomal (Ech1) expression was significantly increased in their visceral adipose tissues. Moreover, other proteins, such as α-tropomyosin, myosin light chain, urine-nucleoside phosphorylase and transgelin, were also significantly increased. Furthermore, q-PCR analysis showed that the expression of acyl-CoA oxidase 1 palmitoyl, enoyl-CoA hydratase/3-hydroxyacyl-CoA dehydrogenase and 3-oxoacyl-CoA thiolase responsible for peroxisomal β-oxidation was also up-regulated in the visceral adipose tissues of the HOR mice. The expression of peroxisome proliferator-activated receptor α (PPARα) was increased in the HOR mice as shown by Western blot analysis. Obesity-resistant animals show enhanced peroxisomal β-oxidation metabolism and reduced fat accumulation in visceral adipose tissues by up-regulating the expression of Ech1, peroxisomal or other related peroxisomal β-oxidation marker genes, which may be driven or enhanced by the up-regulation of the expression of PPARα. However, further validation in future studies is required.
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March-April 2011
Volume 2 Issue 2

Print ISSN: 1792-0981
Online ISSN:1792-1015

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Spandidos Publications style
Xie W, Wang H, Zhang J, Li J, Can Y, Qing L, Kung H and Zhang Y: Enhanced peroxisomal β-oxidation metabolism in visceral adipose tissues of high-fat diet-fed obesity-resistant C57BL/6 mice. Exp Ther Med 2: 309-315, 2011
APA
Xie, W., Wang, H., Zhang, J., Li, J., Can, Y., Qing, L. ... Zhang, Y. (2011). Enhanced peroxisomal β-oxidation metabolism in visceral adipose tissues of high-fat diet-fed obesity-resistant C57BL/6 mice. Experimental and Therapeutic Medicine, 2, 309-315. https://doi.org/10.3892/etm.2011.208
MLA
Xie, W., Wang, H., Zhang, J., Li, J., Can, Y., Qing, L., Kung, H., Zhang, Y."Enhanced peroxisomal β-oxidation metabolism in visceral adipose tissues of high-fat diet-fed obesity-resistant C57BL/6 mice". Experimental and Therapeutic Medicine 2.2 (2011): 309-315.
Chicago
Xie, W., Wang, H., Zhang, J., Li, J., Can, Y., Qing, L., Kung, H., Zhang, Y."Enhanced peroxisomal β-oxidation metabolism in visceral adipose tissues of high-fat diet-fed obesity-resistant C57BL/6 mice". Experimental and Therapeutic Medicine 2, no. 2 (2011): 309-315. https://doi.org/10.3892/etm.2011.208