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  5. 麩醯胺補充對STZ誘導糖尿病鼠發炎反應與氧化壓力之影響
 
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麩醯胺補充對STZ誘導糖尿病鼠發炎反應與氧化壓力之影響

Other Title
Effects of glutamine supplementation on inflammation and oxidative stress in STZ-induced diabetic rodents
Type
thesis
Date Issued
2011-06-17
Author(s)
蔡佩璇
Advisor
葉松鈴
Subjects
系所名稱:保健營養學研究所
Description
學位別:博士
語文別:中文
指導教授:葉松鈴
共同指導教授:
口試委員:許瑞芬;蔡帛蓉;陳彥州;陳俊榮
中文關鍵字:麩醯胺、糖尿病、發炎介質、氧化壓力
Abstract
為了探討麩醯胺對糖尿病引發之發炎反應與氧化壓力之影響,我們建立了第一型(Type 1 diabetes mellitus, T1DM)與第二型(T2DM)的糖尿病動物模式。將實驗動物分成三組,分別為控制組(normal control, NC)、糖尿病組(diabetes without glutamine, DM)、糖尿病餵食麩醯胺組(diabetes with glutamine, DM-Gln),結果顯示,T1DM小鼠血漿中葡萄糖、果糖胺與黏著分子皆高於正常組,DM組其組織中nitrotyrosine濃度與myeloperoxidase (MPO)活性高於NC組,而glutathione redox ratio(GSH/GSSG)比值低於NC組,但DM-Gln與NC組則無顯著差異,可知補充Gln可降低T1DM發炎反應與氧化壓力。第二部分結果顯示,T2DM給予Gln後可以降低發炎相關介質包括:interleukin (IL)-6、IL-23、monocyte chemotactic protein (MCP)-1、receptor of advanced glycation end products (RAGEs)、glutamine fructose-6- phosphate amidotransferase (GFAT)與thioredoxin interacting protein (TXNIP)等基因之表現,Gln也可改善血中抗氧化酵素活性與總抗氧化力,且降低腎臟中nitrotyrosine濃度與TXNIP基因之表現量。由以上結果可知,不論T1DM或T2DM補充麩醯胺,可增加體內抗氧化能力進而降低氧化壓力與發炎反應,減少器官氧化傷害。
URI
https://203.71.86.71/handle/123456789/13487

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