Effects of fenofibrate on high-fat diet-induced body weight gain and adiposity in female C57BL/6J mice

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Effects of fenofibrate on high-fat diet-induced body weight gain and adiposity in female C57BL/6J mice
S Jeong; M Han; H Lee; M Kim; J Kim; C J Nicol; B H Kim; J H Choi; Ki Hoan Nam; G T Oh; M Yoon
Bibliographic Citation
Metabolism-Clinical and Experimental, vol. 53, no. 10, pp. 1284-1289
Publication Year
Our previous study suggested that fenofibrate affects obesity and lipid metabolism in a sexually dimorphic manner in part through the differential activation of hepatic peroxisome proliferator-activated receptor α (PPARα) in male and female C57BL/6J mice. To determine whether fenofibrate reduces body weight gain and adiposity in female sham-operated (Sham) and ovariectomized (OVX) C57BL/6J mice, the effects of fenofibrate on not only body weight, white adipose tissue (WAT) mass, and food intake, but also the expression of both leptin and PPARα target genes were measured. Compared to their respective low-fat diet-fed controls, both Sham and OVX mice exhibited increases in body weight and WAT mass when fed a high-fat diet. Fenofibrate treatment decreased body weight gain and WAT mass in OVX, but not in Sham mice. Furthermore, fenofibrate increased the mRNA levels of PPARα target genes encoding peroxisomal enzymes involved in fatty acid β-oxidation, and reduced apolipoprotein C-III (apo C-III) mRNA, all of which were expressed at higher levels in OVX compared to Sham mice. However, leptin mRNA levels were found to positively correlate with WAT mass, and food intake was not changed in either OVX or Sham mice following fenofibrate treatment. These results suggest that fenofibrate differentially regulates body weight and adiposity due in part to differences in PPARα activation, but not to differences in leptin production, between female OVX and Sham mice.
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Ochang Branch Institute > Division of National Bio-Infrastructure > Laboratory Animal Resource & Research Center > 1. Journal Articles
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