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  2. .TMU Publications / 北醫出版品(教師升等著作 / 教學實踐 / 學位論文)
  3. .博碩士學位論文
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  5. 植物雌激素 (香豆醇及二羥基異黃酮) 對抗Ab及LPS誘發之毒性在小鼠星狀神經膠細胞的保護效果
 
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植物雌激素 (香豆醇及二羥基異黃酮) 對抗Ab及LPS誘發之毒性在小鼠星狀神經膠細胞的保護效果

Other Title
The Protective Effects of Phytoestrogen (Coumestrol and Daidzein) against Amyloid-??-peptide and LPS-induced Toxicity on Mice Astrocyte Cells
Type
thesis
Date Issued
2009-12-28
Author(s)
劉滿海
Advisor
許秀蘊
Subjects
系所名稱:藥學系(博士班)
Description
學位別:博士
語文別:中文
指導教授:許秀蘊
共同指導教授:孫瑞昇
口試委員:劉華昌;蔡麗雪;蔡東湖
中文關鍵字:香豆醇;二羥基異黃酮;星狀神經膠細胞
Abstract
從流行病學及回朔以往病例顯示雌激素補充療法(ERT)可以降低阿滋海默氏症發生率,植物雌激素已經被建議可以當作與雌激素補充療法二者具選擇之潛力藥物.本研究主要證明香豆醇在小鼠體外試驗是否具有類雌激素作用,並且研究植物雌激素daidzein和香豆醇(coumestrol)之神經保護及抗氧化效果.
以加入兩種毒性物質(LPS(脂多醣)及A??(類澱粉蛋白胜肽))至星狀神經膠細胞之模式,探討daidzein和香豆醇(coumestrol)對於星狀神經膠細胞保護之效果.細胞活性可以MTT去分析,對於細胞保護之效果與路徑可以經由測定特殊基因表現和蛋白質含量之改變.結果證明daidzein和香豆醇(coumestrol)可以顯著增加細胞活性,但再加入 LPS及A?珓廗|降低細胞活性.本研究主要是探討在受到Aβ和LPS的刺激之前,先加入具有抗發炎作用的藥物 daidzein及香豆醇(coumestrol),是否能減少誘導發炎的物質產生。結果顯示daidzein香豆醇(coumestrol)皆可以降低細胞白介素第一因子??(interleukin-1??(IL-1??))、細胞白介素第六因子 (interleukin-6 (IL-6)) 和腫瘤壞死因子α(tumor necrosis factor-alpha (TNF-α))的mRNA表現及蛋白質含量.
神經退化疾病之路徑仍是不明確,尚有許多阿滋海默氏症的假設,我們結果提供daidzein和香豆醇是既安全又有神經保護作用及有效抑制發炎反應,在新生鼠星狀神經膠細胞模式中 daidzein 和 coumestrol 最適當之劑量分別為10-12M ,10-9M.此結果顯示其在阿滋海默氏症之預防及治療上具有發展之潛力.
URI
https://203.71.86.71/handle/123456789/13329
https://hdl.handle.net/11296/37mk29
File(s)
No Thumbnail Available
Name

C0191945.pdf

Size

8.21 MB

Format

Adobe PDF

Checksum

(MD5):1278cbc2632ff518e6237e2e964f3bb8

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