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  5. 米麩油及其成分γ- oryzanol對第2型糖尿病大鼠胰島素抗性及脂質代謝的影響
 
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米麩油及其成分γ- oryzanol對第2型糖尿病大鼠胰島素抗性及脂質代謝的影響

Other Title
The effects of rice bran oil and γ- oryzanol on insulin resistance and lipid metabolism in rats with type 2 diabetes mellitus
Type
thesis
Date Issued
2007-06-14
Author(s)
馬千雅
Advisor
鄭心嫻
Subjects
系所名稱:保健營養學研究所
Description
學位別:碩士
語文別:中文
指導教授:鄭心嫻
共同指導教授:
口試委員:許瑞芬;楊淑惠
中文關鍵字:米麩油,第2型糖尿病大鼠;γ - oryzanol;胰島素抗性;脂質代謝
Abstract
本次研究目的欲探討米麩油及其成分γ - oryzanol對於第2型糖尿病大鼠胰島素抗性及脂質代謝之影響。實驗採用32隻wistar品系雄性大鼠,經由streptozotozin(STZ)誘導成第2型糖尿病模式。實驗為期5週,飲食以AIN93-M為基礎,油脂由4%修改為15%之高油飲食。實驗分為四組:控制組(C)、米麩油組(RBO),棕櫚油組(PO)及棕櫚油添加γ- oryzanol組(POO)。油脂分別使用大豆油、米麩油或棕櫚油。於第零週及第五週以腹腔注射葡萄糖耐受試驗評估胰島素敏感性,且於第五週採集實驗動物糞便。5週後犧牲,分析項目包括:禁食血漿葡萄糖、胰島素、三酸甘油酯、總膽固醇、低密度脂蛋白膽固醇、高密度脂蛋白膽固醇、脂肪酸組成、葡萄糖及胰島素濃度曲線下面積;肝臟三酸甘油酯、總膽固醇、脂肪酸組成;糞便中性固醇及膽酸排出量。結果顯示,四週實驗後,RBO組及POO組可改善胰島素抗性。在血脂的部份,RBO組及POO組皆顯著降低低密度脂蛋白膽固醇濃度、增加高密度脂蛋白膽固醇濃度、降低總膽固醇/高密度脂蛋白膽固醇比值、降低三酸甘油酯濃度、降低游離脂肪酸濃度。肝臟脂質的部份,RBO組及POO組顯著降低肝臟中三酸甘油酯及膽固醇含量。糞便中性固醇及膽固醇排出量的部份,RBO組及POO組能增加其排出量。上述結果得知,米麩油及其成分γ - oryzanol具有改善第2型糖尿病大鼠胰島素抗性及脂質代謝。
URI
https://203.71.86.71/handle/123456789/12021
https://hdl.handle.net/11296/6pq3g6
File(s)
No Thumbnail Available
Name

C0183249.pdf

Size

11.41 MB

Format

Adobe PDF

Checksum

(MD5):0ff2f57fb7ad4efc710abb7a67f145da

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