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The Effects of Pueraria and Rehmannia Glutinosa Intake and Exercise on Epigenetic Modification in Ovariectomized Rat Skeletal Muscle
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  • Journal title : Journal of Life Science
  • Volume 25, Issue 11,  2015, pp.1214-1222
  • Publisher : Korean Society of Life Science
  • DOI : 10.5352/JLS.2015.25.11.1214
 Title & Authors
The Effects of Pueraria and Rehmannia Glutinosa Intake and Exercise on Epigenetic Modification in Ovariectomized Rat Skeletal Muscle
Jung, Hyun Ji; Kim, Hye Jin; Kwon, Oran; Lee, Won Jun;
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The purpose of this study was to determine the effect of Pueraria lobate-root based combination supplementation containing Rehmannia glutinosa and exercise on histone modification in ovariectomized rat hindlimb skeletal muscle. Sixty rats were fed with high fat diet and randomly assigned into the following groups for 8 weeks: 1)HSV; High fat+Sedentary+Vehicle, 2)HSP; High fat+Sedentary+PR, 3)HSH; High fat+Sedentary+Estradiol, 4)HEV; High fat+Ex+Vehicle, 5)HEP; High fat+Ex+PR, 6)HEH; High fat+Ex+Estradiol. Exercise consisted of low intensity treadmill exercise(1-4th wk:15 m/min for 30 min, 5-8th wk: 18 m/min for 40 min, 5 times/week). The result of this study showed that exercise and Pueraria and Rehmannia glutinosa intake suppressed weight gain. Furthermore, exercise and Pueraria and Rehmannia glutinosa intake increased muscle mass. This study observed H3K9 acetylation and demethylation in plantaris muscle in exercised group, but no difference in soleus muscle. To test whether the decrease in HDAC4, HDAC5 and G9a mRNA levels after exercise and Pueraria/Rehmannia glutinosa intake, HDAC4, HDAC5 and G9a mRNA levels were determined by real-time PCR. Only exercise induced HDAC5 and G9a mRNA reduction in plantaris muscle, but not in soleus muscle. In conclusion, these data demonstrates that exercise and Pueraria/Rehmannia glutinosa intake effect on body compositions. These changes are regulated by epigenetic modifications, such as histone acetylation and methylation. Future studies should focus on gene-specific epigenetics and other epigenetic mechanism for Pueraria/Rehmannia glutinosa intake.
Epigenetic modification;exercise;ovariectomized rat;pueraria/rehmannia glutinosa;skeletal muscle;
 Cited by
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