內毒素에 의한 敗血症 白鼠 모델에서 成長호르몬 療法의 治療 效果

• 영문명: THE EFFECT OF HUMAN GROWTH HORMONE ON SEPSIS RAT MODEL INDUCED BY ENDOTOXIN
• 발행기관: 대한구강악안면외과학회
• 저자명: 고광희(Kwang Hee Ko) 신효근(Hyo Keun Shin)
• 간행물 정보: 『대한구강악안면외과학회지』대한구강악안면외과학회지 제26권 제1호, 5~17쪽, 전체 13쪽
• 주제분류: 의약학 > 내과학
• 파일형태: PDF
• 발행일자: 2000.02.28

영문 초록

To evaluate the possible therapeutic effects of growth hormone and vitamin C on multiorgan failure, a rat model was developed for LPS-induced sepsis. Using this model, the effects of growth hormone and vitamin C on tissue damages, catalase and i-NOS activities, and MDA levels were examined in the lung and liver. The level of TNF- in plasm was also examined. Male, Sprague-Dawley rats were injected with LPS intraperitoneally then divided into 3 groups : positive controls injected with LPS only, the ones injected with growth hormone or vitamin C immediately after the LPS injections. The lung and the liver were then isolated, blood samples were collected at 24 or 48 hours after the LPS injection, then examined for histopathological and biochemical changes. The results obtained were as follows. 1. LPS induced sinusoid vasodilation and mild destruction of lobular structure in the liver. In the lung, alveolar structure appeared to be thickened and interstitial edema was observed. The levels of MDA in the liver and the lung was increased by LPS, while the activity of catalase was decreased. The activity of i-NOS of those tissues was also increased, which was more pronounced at 24 hr. The level of TNF- in plasm was increased by LPS 2. In the lung, vitamin C suppressed lymphocyte and neutrophil infiltration, alveolar wall thickening and interstitial edema. In the liver, vitamin C protected against the destruction of the lobular structure. The activity of catalase reduced by LPS was reversed partly by vitamin C. The activity of i-NOS enhanced by LPS was also reversed by vitamin C. The level of TNF- in plasm reduced in some animals by vitamin C, which however was not significant statistically(p<0.05). 3. Growth hormone showed similar protective effects against inflammation and damages in the liver and lung tissues. Growth hormone reversed partly the LPS effects on the level of MDA, the activity of catalase and i-NOS induction in the liver and the lung. Growth hormone reduced plasma level of TNF-a substantially, which contrasted from vitamin C. Besides this, overall protective effects of growth hormone against LPS-induced experimental sepsis were similar to those of vitamin C. From this results, the mechanism of growth hormone on suppression of LPS-induced tissue damage might be associated with production of antioxidative enzyme and suppression of plasma TNF- level.

목차

Abstract

Ⅰ. 서론

Ⅱ. 연구재료 및 방법

Ⅲ. 연구성적

Ⅳ. 총괄 및 고찰

Ⅴ. 결론

참고문헌