Applied Microscopy

Korean Society of Microscopy (한국현미경학회)
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Changes of the Antioxidant Enzymes and Histopathological Changes of Liver and Kidney According to the Administered Dosage of Bambusae Caulis in Liquamen in Mice

죽력 (Bambusae Caulis in Liquamen)의 투여량에 따른 생쥐의 항산화효소 활성과 간과 신장의 조직병리학적 변화

  • Kim, Jeong-Sang (Department of Anatomy, College of Oriental Medicine, Dongshin University)
  • 김정상 (동신대학교 한의과대학 해부학교실)
  • Published : 2002.12.01
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Abstract

This study was performed to investigate the effects of Bambusae Caulis in Liquamen (bamboo extract) on the changes of antioxidant enzymes and histopathological changes of liver and kidney in mice when administered in different dosages. The experimental groups were divided into four. For control group, 0.9％ NaCl (0.2 ml/25 g B.W.) and for experimental groups, 5% (H1 group), 10% (H2 group), and 20%(H3 group) bamboo extract diluted with 0.9％ NaCl, were administered (0.2 ml/25 g B.W.) respectively for 28 days at an interval of 48 hours. MnSOD activities were increased in H1 group (46%, P<0.05), H2 group (40%, P<0.05), and H3 group (34%, P<0.05) as compared to the control group. CuZnSOD activities were increased in H1 group (11%, P<0.05), but were decreased in H3 group (13%, P<0.05). The activities of catalase were decreased in H1 group (39%, P<0.05), H2 group (34%, P<0.05), and H3 group (31%, P<0.05) as compared to the control group. Histopathological observation revealed ballooned hepatocytes in the pericentral and periportal veins of H1 group. More ballooned and injured hepatocytes than in H1 group were observed in the H2 and H3 groups. Detachment of endothelial cells of the central vein was observed in the H2 and H3 groups. These results indicated that bamboo extract developed dose-dependent changes in antioxidant enzyme activities and developed histopathological changes of liver and kidney.

죽력의 투여에 따른 생쥐 간세포의 항산화효소 활성변화와 간과 신장의 조직병리학적 변화에 미치는 영향을 통하여 치료약물로써 죽력의 안전성 확보에 기여하고자 본 연구를 수행하였다. 대조군은 생리식염수를 투여하였으며, 실험군은 죽력을 생리식염수에 5% (H1군), 10% (H2군), 20% (H3군)로 희석하여 0.2 ml씩 48시간 간격으로 28일 동안 구강 투여하였다. 대조군과 실험군의 간조직을 절취하여 SOD와 catalase의 활성변화를 측정하였으며, 간과 신장의 조직학적변화 및 미세구조적 변화를 관찰하였다. MnSOD의 활성은 대조군에 비하여 H1 (46%, P<0.05), H2 (40%, P<0.05), H3군 (34%, P<0.05)에서 증가하였다 (Fig. 1). CuZnSOD의 활성은 대조군에 비하여 H1군 (11%, P<0.05)에서는 증가하였으나, H3군 (13%, P<0.05)에서는 감소하였다. Catalase의 활성은 대조군에 비하여 H1 (39%, P<0.05), H2 (34%, P<0.05), H3군 (31%, P<0.05)에서 감소하였다. 간과 신장의 조직병리학적 관찰 결과, H3군에서 간세포의 팽창과 중심정맥 내피세포의 파괴현상이 뚜렷이 나타났으며, 신장의 곱슬세관 상피세포의 파괴현상이 뚜렷하였다. H2군의 간세포는 핵질이 매우 응축되어 있었으며, 사립체의 팽대현상이 현저하였다. H3군은 핵질의 전자밀도가 매우 낮게 나타났다. 사립체의 내강은 매우 팽대되어 있고 크리스테의 형태는 관찰되지 않으면서 기질의 전자밀도는 낮게 나타났다. H3군 근위곱슬소관의 원주상피세포는 핵의 괴사가 뚜렷하였으며, 세포질내에서 관찰되는 사립체들은 대부분 팽대되거나 파괴된 양상을 보여주었다. 이상의 연구 결과로 보아 죽력은 투여 농도에 따라 간세포의 항산화효소 활성의 변화와 간과 신장의 조직 병리학적 변화를 초래한다고 생각된다.

Keywords

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