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  5. 評估藻膠萃取物(CTX)在退化性關節炎之保護能力
 
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評估藻膠萃取物(CTX)在退化性關節炎之保護能力

Other Title
Evaluation of the Protective Effects of the Alginate Extract(CTX) in Osteoarthritis
Type
thesis
Date Issued
2012-06-27
Author(s)
姚力凡
Advisor
陳建和
Subjects
系所名稱:醫學檢驗暨生物技術學系
Publisher
醫學檢驗暨生物技術學系
Description
學位別:碩士
語文別:中文
指導教授:陳建和
共同指導教授:鄭朝文
口試委員:黃嘯谷;廖辰中;林詠峯
中文關鍵字:藻膠萃取物;退化性關節炎
Abstract
退化性關節炎(OA)是一種因關節軟骨遭受破壞而造成關節出現多種退化性的症狀。目前對於OA的研究主要著重於治療的藥物或日常生活補充的保健食品是否可達到抑制具有分解作用的細胞激素產生和減緩關節軟骨的降解。事實上,在稍早的研究中,即針對一項由植物中萃取的CTX在軟骨基質合成與刺激軟骨新生的潛在能力。因此,本篇論文研究的目的則是藉由體內試驗和體外試驗更進一步證明CTX對於早期的OA預防功效為何。在體內試驗方面,利用慢性關節軟骨磨損誘導手術(ACLT)之動物模式來模擬人類OA,經口服投以CTX後,以解剖病理方式來評估CTX對於股骨和脛骨之軟骨保護效果。在體外試驗方面,則使用細胞培養模式來評估CTX對於軟骨分解相關細胞激素第一型介白素β(IL-1β)存在下對於軟骨保護的相關機轉,並進一步分析其對基質金屬蛋白酶類(MMPs)、軟骨蛋白聚醣(aggrecan)等軟骨相關成份的調控情形。然而,在投以CTX與OA控制組比較下,結果顯示CTX能降低基質金屬蛋白酶類(尤其是MMP-13)基因表現外,更能促進軟骨蛋白聚醣基因表達。此外,CTX對於OA在鎮痛及病徵亦有減緩的趨勢。本篇研究顯示,CTX於劑量3㏄/天在動物模式體內試驗上,與OA控制組相比,OA所導致的關節僵硬及軟骨磨損均能獲得改善。總而言之,未來在於早期OA的預防上,CTX可以提供正向的協助。
URI
https://203.71.86.71/handle/123456789/11170

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