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  5. 丹參酚酸B 對於纖維蛋白原之作用機轉討論
 
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丹參酚酸B 對於纖維蛋白原之作用機轉討論

Other Title
To study Salvianolic acid B on the fibrinogen level for HepG2-TRα1 and the hemorheology parameter for T3 rats.
Type
thesis
Date Issued
2010-07-01
Author(s)
林怡君
Advisor
劉得任
Subjects
系所名稱:生醫材料暨工程研究所
Description
學位別:碩士
語文別:中文
指導教授:劉得任
共同指導教授:
口試委員:黃義侑;侯文琪
中文關鍵字:三碘甲狀腺素;纖維蛋白原;丹參酚酸B;過量表現甲狀腺素受體的肝癌細胞株
Abstract
甲狀腺素 (Triiodothyronine, T3)是一種可調控細胞生長、發育與分化之重要因子。然而,過量的甲狀腺素會造成血液中纖維蛋白原 (fibrinogen) 上升,促使紅血球聚集度增加,血液黏度提高,造成血液流變異常。丹參 (Salvia miltiorrhiza Bunge) 是一種具有活血化瘀功能的中草藥,被廣泛應用於治療心血管疾病。丹參酚酸B (Salvianolic acid B,Sab) 是丹參水溶性有效成分,因此透過探討丹參酚酸B 對大鼠血液中纖維蛋白原的影響。
利用T3刺激HepG2-TRα1細胞,使其生成纖維蛋白原,再利用不同濃度10、30、50、80、100 μM 丹參酚酸B處理,由Q-PCR及ELISA分別得知纖維蛋白原mRNA及protein生成量,由實驗結果得,以30 μM以上之丹參酚酸B處理,纖維蛋白原mRNA生成量會開始明顯降低;而纖維蛋白原protein層面,則是50 μM以上的丹參酚酸B,可降低纖維蛋白原生成量,因此可推論:丹參酚酸B可抑制纖維蛋白原mRNA生成。
本實驗使用八週齡之Sprague-Dawley 大鼠,給予T4飲用水,於第六週開始,每天分別餵食30、50、80mg/(kg day)丹參酚酸B,持續六週。並抽取其血液檢測血液流變之參數。結果顯示,餵食50、80mg/(kg day)丹參酚酸B組於第四、六週之纖維蛋白原含量較T4組低;於第六週時,紅血球聚集度較T4組低;於低shear rate下,三組餵食丹參酚酸B組相較於T4組其黏度皆有降低之趨勢。纖維蛋白降解產物(FDP)也無明顯差異。由此可知:丹參酚酸B具有降低纖維蛋白原生成之功效。
URI
https://203.71.86.71/handle/123456789/13120

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