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    Duca, Frank A. Sakar, Yassine and Covasa, Mihai 2013. The modulatory role of high fat feeding on gastrointestinal signals in obesity. The Journal of Nutritional Biochemistry, Vol. 24, Issue. 10, p. 1663.


    Li, Jie Ma, Weiwei and Wang, Shuran 2011. Slower gastric emptying in high-fat diet induced obese rats is associated with attenuated plasma ghrelin and elevated plasma leptin and cholecystokinin concentrations. Regulatory Peptides, Vol. 171, Issue. 1-3, p. 53.


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Effects of changing dietary fat content on plasma gut hormone concentrations in diet-induced obese and diet-resistant rats

  • Jie Li (a1), Shuran Wang (a1), Na Zhang (a1), Ze Li (a1), Rui Li (a1) and Cong Li (a1)
  • DOI: http://dx.doi.org/10.1017/S0007114510004381
  • Published online: 09 November 2010
Abstract

Gut hormones play key roles in the regulation of energy homeostasis. However, little is known about the long- and short-term effects of changing dietary fat content on gut hormones. We aim to examine the effects of changing dietary fat content on plasma gut hormone concentrations in diet-induced obese (DIO) and diet-resistant (DR) rats. After inducing obesity with a high-fat (HF) diet, male Sprague–Dawley rats were divided into three groups according to their body-weight gain: DIO; DR; control (CON). The DIO and DR rats were further divided in random into two groups. One continued on a HF diet and the other switched to a low-fat (LF) diet for an additional 4 weeks. Finally, each group was randomly divided into three subgroups (n 8): fasted; fasted-refed HF; fasted-refed LF diet groups. Replacing a HF diet with a LF diet for 4 weeks resulted in less fat mass, higher fasting and post-HF plasma ghrelin concentration and lower postprandial plasma cholecystokinin concentration in the DIO and DR rats. Acute switching dietary fat resulted in significantly higher post-HF plasma ghrelin concentrations than post-LF ghrelin concentrations in the DR rats on LF diet (DRLF) and DIO rats on LF diet (DIOLF) rats, and significantly higher post-HF obestatin concentrations than post-LF obestatin concentrations in the CON, DR rats on HF diet (DRHF) and DRLF rats. Dietary fat content appears to play a role in the gut hormone profile, which may consequently influence fat mass.

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*Corresponding author: S. Wang, fax +86 451 87502885, email shuranwang@163.com
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British Journal of Nutrition
  • ISSN: 0007-1145
  • EISSN: 1475-2662
  • URL: /core/journals/british-journal-of-nutrition
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