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Antidepressant Effect of Acer tegmentosum Maxim on Forced Swimming Test in the Rat

강제수영실험을 통한 산청목의 항우울효과

  • Received : 2014.09.23
  • Accepted : 2014.11.06
  • Published : 2014.11.30

Abstract

Acer tegmentosum Maxim (AT) is a species of the maple genus, which is native to North-Eastern China and Korea. Traditionally, AT has been already used for pain relief in Korea. On the other hand, its antidepressant-like activity and related molecular mechanisms is not completely understood. Using the Forced Swimming Test (FST), the effects of a subacute treatment with AT(100, 200, and 400 mg/kg, p.o.) on the immobility and FST-induced changes to the immune parameters, cortisol, ACTH, and cytokine, in rats were investigated. The tendency of immobility showed a dose-dependent decrease in FST. The levels of cortisol, IL-6 and $IL-1{\beta}$ in the peripheral blood were increased significantly after FST exposure. Overall, these results suggest that AT treatment can decrease the immobility time and the release of pro-inflammatory cytokines in the FST, suggesting that the anti-inflammatory effects of AT might be involved in the antidepressant-like effect.

은행속에 속하는 산청목은 중국과 한국 북동부지역에 널리 분포하는 자생 식물로 전통적으로 항염증제로 사용되었으며 현재까지 항우울에 대한 효능과 그에 대한 면역변화에 대한 연구는 미흡한 실정이다. 본 연구실에서는 100, 200, 그리고 400 mg/kg 농도의 산청목추출물을 실험쥐에게 경구투여를 실행하였으며 강제수영실험을 통하여 항우울효과를 평가 그리고 혈 중 코티솔, ACTH, 그리고 사이토카인의 농도를 측정하였다. 실험 결과 실험쥐에 경구투여한 산청목 투입량이 증가함에 따라 강제수영실험에서의 행동불능시간이 감소하였으며 수중공포에 의해 분비유도된 사이토카인 농도 또한 감소함을 볼 수 있었다. 특히 코티솔, IL-6 과 $IL-1{\beta}$농도가 산청목 투입군에서 유의하게 감소함을 알 수 있었다. 산청목 경구투여군에서의 부동시간의 감소와 전염증성 사이토카인의 저하를 종합하여 볼 때 산청목의 항염증 효능으로 인한 작용에 의하여 강제수영 실험에서 항우울효과가 발현했다고 간주된다.

Keywords

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