Abstract

본 연구는 야관문 추출물이 알코올 투여된 생쥐의 간장에 미치는 영향을 알아보고자 시행하였다. 대조군(Con), 알코올투여군(AL) 알코올-야관문 200 mg/kg 투여군 (AL-LC 200군), 알코올-야관문 400 mg/kg투여군 (AL-LC 400군)으로 나누어 구분하였다. 대조군과 알코올투여군은 1차 증류수를 알코올-야관문 투여군은 야관문을 각각 200 mg/kg과 400 mg/kg 농도로 10 일간 경구투여 하였다. 모든 실험군은 경구투여 7일후 12시간 절식시킨 다음 대조군은 1차 증류수, 알코올투여군과 알코올-야관문투여군은 50% ethanol (MERCK, USA)을 10 g/kg농도로 12시간 간격으로 5회 경구투여 하였다. 혈액의 AST, ALT 효소활성과 간장의 조직학적 실험을 하여 다음과 같은 결론을 얻었다. AST, ALT은 AL군 보다 알코올-야관문 복합투여군에서 수치가 감소하였다. 특히 AST 활성은 AL군에 대하여 AL-LC 200군과 AL-LC 400군 모두 활성이 유의적으로 감소하였다. 조직학적 결과는 간장에서 AL군은 대부분에서 괴사와 변형이 일어났고 중심정맥 주변 간세포 내에 지방방울이 축적되었다. AL-LC 200군에서는 중심정맥의 일부가 부풀어진 모습을 보였고 간세포의 팽창과 작은 지방 방울이 축적되었다. AL-LC 400군에서는 중심정맥은 정상적인 모습을 보이며 일부 간세포내의 작은 지방 방울이 축적 되었고 대부분은 정상적인 모습을 보였다. 이상의 연구결과로 보아 야관문 추출물이 알코올투여한 생쥐의 간장손상에 대한 보호 효과가 있어 기능성 건강 소재로서의 활성 용도가 높을 것으로 사료된다. This study was conducted to investigate the effects of Lespedeza caneata extract on the livers of alcohol-administered mice. The study subjects were divided into a control (Con), alcohol administration (AL), alcohol and Lespedeza Caneata extract 200 mg/kg administration (AL-LC 200), and alcohol and Lespedeza caneata extract400 mg/kg administration (AL-LC 400) group. Distilled water was administrated orally to control and alcohol groups for ten days, while Lespedeza caneata extract was administered orally to alcohol and Lespedeza caneata extract groups for ten days. All experimental groups were fasted for twelve hours seven days after the oral administration, after which distilled water was administered orally to Con five times at twelve-hour intervals. At the same time, 50% ethanol (MERCK, USA) at 10 g/kg concentration was administered orally to AL and AL-LC groups five times at 12-hour intervals. The AST, ALT enzyme activation in blood and histology of the liver were then evaluated. AST and ALT in AL-LC groups were lower than in the AL group. Particularly, the AL-LC 200 and AL-LC 400 groups had significantly lower AST activation than the AL group. Histological results showed that most of the subjects in the AL group had necrosis and deformation in their livers, while fat droplets were accumulated in hepatic cells around the central vein. AL-LC 200 group revealed that a portion of the central vein was swollen, liver cells were expanded, and small fat droplets were accumulated. In the AL-CL 400 group, the central vein was normal and small fat droplets were accumulated in some liver cells. However, most of the liver cells appeared normal in the AL-CL 400 group. These results suggest that the extracts of Lespedeza caneata prevented alcohol induced liver damage in mice and have great potential for use as natural health products.

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