Effects of Flavangenol on Autonomic Nerve Activities and Dietary Body Weight Gain in Rats

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  • TANIDA Mamoru
    Institute for Protein Research, Osaka University ANBAS Corporation Department of Biomedical Sciences, College of Life Sciences, Ritsumeikan University
  • TSURUOKA Nobuo
    Institute for Health Care Science, Suntory Limited
  • SHEN Jiao
    Institute for Protein Research, Osaka University ANBAS Corporation
  • HORII Yuko
    Institute for Protein Research, Osaka University ANBAS Corporation
  • BEPPU Yoshinori
    Institute for Health Care Science, Suntory Limited
  • KISO Yoshinobu
    Institute for Health Care Science, Suntory Limited
  • NAGAI Katsuya
    Institute for Protein Research, Osaka University ANBAS Corporation

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In a previous report, evidence was presented that flavangenol supplementation has an anti-ischemic effects in rats. In the study presented here, we examined the autonomic effects of intraduodenal (ID) injection of flavangenol in urethane-anesthetized rats and found that it increased sympathetic nerve activity innervating brown adipose tissue (BAT-SNA) in a dose-dependent manner, while it suppressed gastric vagal nerve activity (GVNA). In addition, intra-oral (IO) injection of flavangenol elevated brown adipose tissue temperature (BAT-T). Furthermore, flavangenol drinking for 15 d reduced body weight gain in rats fed a high-fat diet. These results thus suggest that flavangenol supplementation exerts its reducing action on body weight through changes in autonomic neurotransmission.

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