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  5. 臺灣產植物抗光老化活性及其奈米劑型之探討 (1)
 
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臺灣產植物抗光老化活性及其奈米劑型之探討 (1)

Other Title
The anti-photoaging activities and pharmaceutical dosage form in Taiwanese plant
Type
thesis
Date Issued
2015-07-22
Author(s)
葉宜龍
Advisor
李美賢
Subjects
系所名稱:生藥學研究所
Description
學位別:碩士
語文別:中文
指導教授:李美賢
共同指導教授:
口試委員:柯宏慧;曾靖孋
中文關鍵字:基質金屬蛋白酶臺灣火刺木;纖維母細胞;抗氧化
英文關鍵字:matrix metalloproteinase;Pyracantha koidzumii;human fibroblasts;reactive oxygen species
Abstract
近年來多數國家人口逐漸進入高齡化社會,具有抗老化活性之藥妝產品漸漸受到消費者的注意,決定皮膚光老化的主要原因之一是膠 原蛋白,而基質金屬蛋白酶-1 (matrix metalloproteinase, MMP-1) 會影 響膠原蛋白的降解,因此 MMP-1 在皮膚抗光老化的作用扮演重要的 角色。臺灣火刺木 ( Pyracantha koidzumii (Hanyata) Rehder) 為薔薇科 (Rosaceae) 火刺木屬 (Pyracantha) 之常綠灌木,屬於臺灣特有種植物。過去研究指出臺灣火刺木具有美白作用,本研究以其果實之 95% 乙醇萃取物進行部分劃分,利用活性追蹤方式探討在 WS-1 細胞之抗 光老化作用,結果顯示粗萃物、乙酸乙酯、正丁醇及水層之萃取物對 細胞存活率影響不大,且乙酸乙酯層萃取物具較明顯抑制 MMP-1 活 性。將乙酸乙酯層萃取物進行藥物奈米劑型的探討,得到奈米等級 (粒徑= 148.3 nm)、穩定 (多分散性指數= 0.131) 且包覆率為 90% 之 藥物劑型。進一步從乙酸乙酯層萃取物進行成分分離純化,經理化及 光譜相關數據與參考文獻比對得到三個化合物:分別為 PK1, PK2 及 PK3。在人類纖維母細胞 (WS-1) 中具有抑制 MMP-1 之活性,且 PK2 和 PK3 具有細胞內抗氧化的作用。期望透過本研究在未來對臺灣火 刺木發展抗光老化及奈米劑型有良好貢獻。
URI
https://203.71.86.71/handle/123456789/57074

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