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구속 스트레스 쥐 모델에서 스트레스 반응 감소에 대한 사카린 섭취의 효과

Effect of Saccharin Intake in Restraint-induced Stress Response Reduction in Rats

  • 박종민 (경북보건대학교 간호학과) ;
  • 송민경 (경희대학교 간호과학대학) ;
  • 김윤주 (경희대학교 간호과학대학) ;
  • 김연정 (경희대학교 간호과학대학.동서간호학 연구소)
  • Park, Jong Min (Department of Nursing, Gyeongbuk College of Health) ;
  • Song, Min Kyung (College of Nursing Science, Kyung Hee University) ;
  • Kim, Yoon Ju (College of Nursing Science, Kyung Hee University) ;
  • Kim, Youn Jung (College of Nursing Science.East West Nursing Institute, Kyung Hee University)
  • 투고 : 2016.01.31
  • 심사 : 2016.02.10
  • 발행 : 2016.02.29

초록

Purpose: Stress activates the sympathetic nervous system and hypothalamic-pituitary-adrenal (HPA) axis and induces the release of glucocorticoids. Saccharin is 300 times sweeter than sucrose, but does not increase blood insulin levels. Thus, this study was designed to evaluate the effect of saccharin intake in restraint-induced stress response reduction in rats. Methods: Adult male Sprague-Dawley (SD) rats had stress induced by restraint for 2 hours/day for 1 week. Saccharin was provided in sufficient amounts to allow them to intake it voluntarily at 0.1% diluted in water. The Y-maze test and forced swim test (FST) were performed to evaluate cognitive function and the depressive behavior of the rats. The protein expression of the glucocorticoid receptor (GR) in hippocampal cornu ammonis (CA) 1 was investigated by using immunohistochemistry. Results: It was found that, the percentage of alternation in the Y-maze test was significantly (p<.01) higher in the Stress + saccharin group than in the Stress group. Immobility time in the FST was significantly (p<.01) lower in the Stress + saccharin group than in the Stress group. Also, the positive cells of GR in hippocampus CA1 were significantly (p<.05) lower in the Stress + saccharin group than in the Stress group. Conclusion: This study showed that there was an effect of saccharin intake in restraint-induced stress response reduction in rats.

키워드

참고문헌

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