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장기간 중강도 운동훈련과 일회 탈진운동이 쥐 비장세포의 싸이토카인 생성량 및 증식반응에 미치는 영향

Effects of acute exhaustive exercise and long-term moderate exercise training on splenocyte immunocompetence in mice

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초록

본 연구의 목적은 장기간 중강도 운동훈련과 일회 탈진운동이 쥐 비장세포의 면역반응에 미치는 영향을 규명하는 것이다. 실험동물로써 4주령의 BALB/c 마우스 30마리를 사용하였으며, 1주간의 적응기 후에 무작위로 통제군(n=10), 탈진운동군(n=10), 장기간 중강도 운동군(n=10)으로 분류하였다. 운동은 쥐용 트레드밀을 이용하였으며, 운동훈련은 탈진운동(14-28m/min, 5%, ~90분, 16주), 장기간 중강도 운동(10-14m/min, 30-50min, 주5회, 16주간)을 실시하였다. 16주간 운동 후 비장세포를 추출하여 다양한 농도의 concanavalin A로 자극한 후 IL-1β, IL-4, IL-12, IFN-γ과 증식반응을 측정하였다. 통계적 방법으로는 일원변량분석을 실시하였으며, 유의 수준은 α=.05로 설정하여 다음과 같은 결과를 얻었다. 탈진운동군에서 IL-12의 생성량이 다른 두 그룹보다 유의하게 높았지만, IL-1β, IL-4, IFN-γ와 증식반응에서는 유의한 차이가 나타나지 않아 비장세포 있어 탈진운동이 면역반응을 저하시키거나 중강도 운동이 향상시키는 결과는 얻지 못하였다. 결론적으로 마우스 비장세포에서 Th1 계열의 IL-12 생성량 향상에 영향미치는 것으로 나타나 탈진운동이 세포매개성 면역반응에 영향을 주는 것으로 보여지며 운동강도에 따라 면역세포간 각기 다른 반응을 나타내는 것으로 사료된다.

Abstract

The present research was to investigate the effect of exhaustive exercise and long-term moderate exercise training on splenocyte immunoresponse in mice. Male Balb/c mice (4 weeks, n = 30) were used and randomly divided into 3 groups; Control group (CON, n=10), Exhaustive exercise group (EXH, n=10, 14-28 m/min, 5%, ≒90 min at 16 weeks) and Moderate exercise training group (TRA, n=10, 10-14 m/min, 30-50 min/day, 5 day/week for 16 weeks). After exercise training, all the splenocyte was collected and multiful doses of Con A(Concanavalin A) were used to stimulate the cells. Then, IL-1β, IL-4, IL-12, IFN-γ and cell proliferation were measured by commercial ELISA kits. One-way ANOVA were used and p value under 0.05 was considered as statistical significance. IL-12 production of exhaustive exercise was higher than other groups. However, IL-1β, IL-4, IFN-γ and cell proliferation and were not significantly affected by both exhaustive exercise and a long-term moderate exercise training. In conclusion, exhaustive exercise could enhance to produce IL-12 cytokine(Th1 cytokine) in splenocyte, which help cell-mediated immunity. Further exercise-induced immunocompetence would be different in each immune cells.

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