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자료유형
학술저널
저자정보
신말순 (고려대학교) 박상서 (상명대학교 운동재활연구소) 이재민 (경희대학교) 김태운 (경희대학교) 김영표 (제주대학교)
저널정보
한국운동재활학회 Journal of exercise rehabilitation Journal of exercise rehabilitation Vol.13 No.1
발행연도
2017.1
수록면
36 - 42 (7page)

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The olfactory bulbectomy (OBX) is a well-known method inducing ani-mal model of depression. Depression is associated with dysfunction of serotonin (5-hydroxytryptamine, 5-HT) system. In the present study, an-tidepressive effect of treadmill exercise was investigated using olfacto-ry bulbectomized rats. After bilateral bulbectomy, the rats in the tread-mill exercise groups were subjected to run on a treadmill for 30 min once a day during 28 days. Increased immobility time and decreased fast time in the forced swim test were observed in the olfactory bulbec-tomized rats. Sucrose preference in the sucrose preference test was decreased and activity in the open field test was also increased in the olfactory bulbectomized rats. Treadmill exercise decreased immobility time and activity and increased fast time and sucrose preference in the olfactory bulbectomized rats. Expressions of 5-HT and tryptophan hy-droxylase (TPH) in the dorsal raphe of rats were suppressed by OBX and treadmill exercise increased the expressions of 5-HT and TPH in the olfactory bulbectomized rats. Serotonin receptor type 1A (5-HT1A) expression in the dorsal raphe was reduced by OBX and treadmill exer-cise increased 5-HT1A expression in the olfactory bulbectomized rats. In the present study, treadmill exercise ameliorated OBX-induced depres-sive symptoms. The antidepressive effect of treadmill exercise might be ascribed to the enhancement of serotonergic function through upregu-lation of 5-HT1A expression in the dorsal raphe.

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