Journal of the Korean Society of Food Science and Nutrition (한국식품영양과학회지)

The Korean Society of Food Science and Nutrition (한국식품영양과학회)
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Effect of Eucommia ulmoides Leaf Water Extract on Hepatotoxicity of Carbon Tetrachloride-Induced Rats

두충잎 물추출물이 사염화탄소를 투여한 흰쥐의 간손상에 미치는 영향

  • 전정례 (영남대학교 식품영양학과) ;
  • 박정륭 (영남대학교 식품영양학과)
  • Published : 2002.02.01
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Abstract

The present study was carried out to investigate the pretreatment of effects of water extract obtained from Eucommia ulmoides leaf (ELE) on hepatotoxicity of carbon tetrachloride ($CCl_4$) -treated rats. Thirty two healthy male Sprague-Dawley rats were divided into four groups, i.e. normal group (N), $CCl_4$-treated group (T), ELE-treated group (E), and ELE-treated group after injection of $CCl_4$(TE). The administration of $CCl_4$increased the activities of aspartate aminotransferase, alanine aminotransferase and lactate dehydrogenase in serum, but their activities were significantly decreased by the addition of ELE. Alkaline phosphatase activity in serum was significantly decreased in $CCl_4$-treated group, while the activity was not decreased by the extracts. Higher levels of HDL cholesterol was found in E and TE group which showed lower levels of total and LDL-cholesterol. Histopathologic findings by light microscopic examination showed fatty change, ballooning degeneration, acidophilic degeneration, spotty necrosis and zonal necrosis in $CCl_4$treated liver tissue. But the degree of liver damage was not identified in liver tissue of the TE group. These results indicated that Eucommia ulmoides leaf water extracts led migtigation of liver demage induced with $CCl_4$.

두충잎의 생약 및 식품 자원으로서의 이용성을 증진시킬 목적으로 두충잎의 물추출물을 사염화탄소를 투여한 흰쥐의 간손상에 미치는 영향을 검토하기 위해, 정상군, 사염화탄소군, 두충잎 물추출액 투여군, 사염화탄소 처리 후 두충잎 물추출액을 투여한 군의 4개군으로 나누어 6주간 사육하여 얻은 결과는 다음과 같다. 혈청 중의 AST, ALT, LDH 활성은 사염화탄소 투여에 의해 현저히 증가하였으나 두충잎 물추출물을 함께 투여함으로 정상군과 수준으로 회복되었다. 한편 사염화탄소에 의해 증가된 혈청중의 ALP 활성은 두충잎 투여에 의해 유의성 있게 감소하지 않았다. 혈청 중의 중성지질, 총 콜레스테롤 함량과 LDL콜레스테롤의 함량은 사염화탄소군에서만 유의적인 증가를 나타내었을 뿐 나머지 각군간의 유의적인 차이는 없었다. 한편 혈청 중의 HDL콜레스테롤의 함량은 두충 단독 투여군 및 사염화탄소 투여 후 두충잎 투여군이 정상군 및 사염화탄소 단독 투여군들보다 유의적으로 높게 나타났다. 간조직 중의 총콜레스테롤, 총지질, 중성 지질의 함량은 사염화탄소에 의해 유의적인 증가를 나타내었으나 두충잎 물추출액의 투여로 인해 이들의 함량이 유의성 있는 감소는 관찰되지 않았다. 광학현미경에 의한 간소직 세포의 병리학적인 검사에서는 사염화탄소군에서 간손상시 나타나는 간조직의 지방변화, 풍선양 변성, 호산성 변성, 국소성 괴사, 부위별 괴사가 관찰되었으나 그후 두충잎 투여에서 변화가 나타나지 않아 간 손상이 회복되었음을 알 수 있었다. 이상의 결과에서 두충잎 열수 추출물은 $CCl_4$에 의해 손상된 간기능을 회복시키는데 효과가 있었으며, 특히 혈청지질 개선에 탁월한 효과가 있음을 알 수 있었다.

Keywords

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