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  5. 桃仁承氣湯併用aspirin在大鼠自體血栓引發腦血管梗塞之活性作用探討
 
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桃仁承氣湯併用aspirin在大鼠自體血栓引發腦血管梗塞之活性作用探討

Other Title
Study of Tao-Ren-Cheng-Qi-Tang combined with aspirin in thromboembolic MCAO rat model
Type
thesis
Date Issued
2013-07-04
Author(s)
許玲維
Advisor
許準榕
Subjects
系所名稱:醫學科學研究所
Description
學位別:碩士
語文別:中文
指導教授:許準榕
共同指導教授:
口試委員:顏茂雄;馮琮涵
中文關鍵字:缺血性中風;桃仁承氣湯
Abstract
中風是國內十大疾病死因之第三位,且造成社會龐大負擔。目前為止,尚未有任何一種藥物能夠完全治療中風。在台灣,有許多病人在西藥治療之外,併用傳統中藥治療和預防中風。因此探討中西藥併用於中風,其交互作用和副作用風險等為重要課題。在中國大陸,桃仁承氣湯長期被中醫用於治療缺血性中風。另一方面,aspirin臨床上用於預防缺血性中風,但有出血風險。本篇實驗併用傳統中藥桃仁承氣湯和西藥aspirin,探討兩者併用對於治療缺血性中風之作用,以及觀察其出血性副作用。
實驗利用自體血栓引發中大腦動脈梗塞動物模式,術後24小時每天管餵桃仁承氣湯(0.5 g/kg)併用aspirin (5 mg/kg)一個月和三個月,結果顯示桃仁承氣湯不論單獨或併用aspirin皆顯著降低缺血性傷害,並且加速改善其神經行為功能,但aspirin則無此效果。除此之外,桃仁承氣湯併用aspirin有效降低缺血性中風導致TNF-α、JNK、Bax、caspase-3表現和腦組織切片TUNEL染色。另外桃仁承氣湯(0.2-0.4 mg/ml)隨著劑量增加有效降低血小板凝集,在小鼠斷尾凝血試驗管餵桃仁承氣湯(860 mg/kg)一週亦有效延長凝血所需時間。利用ESR發現桃仁承氣湯(0.3、0.7、1.3 mg/ml)具有清除氫氧自由基(OH˙)的能力。除此之外,在探討副作用的實驗,如顱內出血、蜘蛛膜下腔出血和胃出血等,皆無出血情形,凝血酶原時間並無顯著增加。
本篇實驗證明桃仁承氣湯不論單獨或併用aspirin皆有神經保護作用,藉由抑制發炎反應、細胞凋亡、氧化壓力和血小板活化而降低缺血性腦傷害、改善神經功能,並且無出血性副作用。在本論文研究證實桃仁承氣湯的確是一有效治療缺血性腦中風且值得進一步研究的中藥方劑。
URI
https://203.71.86.71/handle/123456789/13927

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