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  3. .博碩士學位論文
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  5. Adenosine analogue自發性微乳化給藥系統
 
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Adenosine analogue自發性微乳化給藥系統

Other Title
Self- microemulsifying drug delivery system for oral delivery of an adenosine analogue
Type
thesis
Date Issued
2013-07-17
Author(s)
張齡云
Advisor
許明照
Subjects
系所名稱:藥學院生技製藥產業碩士專班
Description
學位別:碩士
語文別:中文
指導教授:許明照
共同指導教授:蔡翠敏
口試委員:蔡義弘;林山陽;謝堅銘
中文關鍵字:腺苷類似物;亨丁頓氏舞蹈症;自發性微乳化釋藥系統;Caco-2細胞;藥物動力學試驗
Abstract
目的:腺苷類似物來源中國藥材萃取出來,在動物模型已被證明能延緩亨丁頓氏舞蹈症的進展。然而,腺苷類似物之水溶解度差,且口服生體可用率低。為了提高腺苷類似物溶解度及口服生體可用率,進行SMEDDS(自發性微乳化釋藥系統)開發。

方法:為了獲得合適的自發性微乳化釋藥系統,進行脂質、表面活性劑和輔助表面活性劑組成的三相圖構建。 在28天內利用粒徑儀 (N5 submicron particle size analyzer) 測量SMEDDS在水性介質中形成的液滴大小。利用高效能液相層析法(HPLC)測量溶液中腺苷類似物的溶液濃度之方法開發。此外,利用超高效液相色譜-串聯質譜(UPLC-MS/MS)測定在大鼠腺苷類似物血漿中的濃度也被開發和驗證。SMEDDS利用Caco-2細胞進行體外模擬測試腺苷類似物於小腸穿透率。最後口服給予腺苷類似物於雄性Sprague - Dawley大鼠,進行藥物動力學試驗。

結果與結論:油相、界面活性劑、輔助介面活性劑所組成之自發性微乳化劑能顯著提高藥物的溶解度。在28天內在水介質中形成液滴的大小約200 nm左右。腺苷類似物自發性微乳化劑通過Caco-2細胞之穿透率較對照組溶液高。此外,自發性微乳化劑口服給予雄性Sprague - Dawley大鼠進行藥物動力學試驗,顯示出自發性微乳化劑對於水不溶性藥物腺苷類似物略提高其口服生體可用率。
URI
https://203.71.86.71/handle/123456789/14068

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