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普萘洛爾治療嬰幼兒血管瘤作用機(jī)理的動(dòng)物實(shí)驗(yàn)研究

發(fā)布時(shí)間:2018-05-15 16:41

  本文選題:血管瘤 + 普萘洛爾; 參考:《安徽醫(yī)科大學(xué)》2014年碩士論文


【摘要】:目的:治療嬰幼兒血管瘤的方法很多,但由于不同的不良反應(yīng),臨床上的選擇不同,最近普萘洛爾已經(jīng)逐漸被臨床醫(yī)生認(rèn)可為治療嬰幼兒血管瘤的一線臨床藥物,但具體治療通過(guò)何種機(jī)理卻達(dá)不到統(tǒng)一,本研究旨在探討普萘洛爾對(duì)人增生期血管瘤裸鼠種植瘤生長(zhǎng)的影響,進(jìn)而探究普萘洛爾治療嬰幼兒血管瘤的可能作用機(jī)理。 方法:臨床上選取一例健康的3個(gè)月大的嬰幼兒肩部增生期毛細(xì)血管瘤患者,于無(wú)菌操作下手術(shù)切除血管瘤組織,分為兩部分,,一部分于福爾馬林固定后送病理,另一部分保存于0~4℃的無(wú)菌容器中送SPF級(jí)動(dòng)物實(shí)驗(yàn)室,無(wú)菌條件下去除血管瘤表皮,合理選擇皮下組織,分別切成大小約5mm×4mm×3mm的組織塊若干,分別植入16只幼小裸鼠(BALB/c nu/nu)的皮下,每只4處。建立人增生期血管瘤裸鼠模型,于第45天隨機(jī)分成兩組:普萘洛爾組的每只裸鼠用0.01%普萘洛爾溶液0.4ml灌胃,每天1次,持續(xù)一周;用同等體積的蒸餾水相同給藥方法及給藥次數(shù)作為對(duì)照組。密切的監(jiān)測(cè)移植瘤體及裸鼠的生長(zhǎng)狀況并做相應(yīng)記錄,通過(guò)免疫組織化學(xué)方法以及Western Blot方法分別檢測(cè)血管內(nèi)皮生長(zhǎng)因子(VEGF)及胰島素樣生長(zhǎng)因子-2(IGF-2)的表達(dá)情況。 結(jié)果: 1.藥物干預(yù)前兩組裸鼠體重及移植血管瘤瘤體體積差異無(wú)統(tǒng)計(jì)學(xué)意義,藥物干預(yù)后普萘洛爾組(含32處種植瘤),瘤體組織生長(zhǎng)速率顯著慢于蒸餾水對(duì)照組(含28處種植瘤)(P0.05); 2.免疫組化方法檢測(cè)顯示:與對(duì)照組比,VEGF在普萘洛爾藥物干預(yù)與否的表達(dá)差異具有統(tǒng)計(jì)學(xué)意義(P0.5);與對(duì)照組比,IGF-2在普萘洛爾干預(yù)普萘洛爾藥物干預(yù)與否的表達(dá)差異也具有統(tǒng)計(jì)學(xué)意義(P0.5); 3. Western Blot方法檢測(cè)顯示:與空白對(duì)照組比,普萘洛爾組中VEGF蛋白的相對(duì)表達(dá)量明顯減少(P0.05);與空白對(duì)照組比,普萘洛爾組IGF-2蛋白的相對(duì)表達(dá)量明顯減少(P0.05)。 結(jié)論:普萘洛爾可以有效地抑制人血管瘤移植瘤生長(zhǎng)速度,抑制VEGF和IGF-2的分泌,從而有效抑制腫瘤血管生成,加速瘤體轉(zhuǎn)化為消退期。
[Abstract]:Objective: there are many methods for the treatment of infantile hemangioma, but due to different adverse reactions and different clinical choices, propranolol has been gradually recognized by clinicians as a first-line clinical drug for the treatment of infantile hemangioma. The purpose of this study was to investigate the effect of propranolol on the growth of implanted human hemangioma in nude mice and to explore the possible mechanism of propranolol in the treatment of infantile hemangioma. Methods: a healthy 3-month-old infant with proliferative capillary hemangioma of shoulder was selected clinically. The hemangioma tissue was surgically resected under aseptic operation and was divided into two parts, one of which was treated with formalin fixed evacuation. The other part was stored in an aseptic container at 0 鈩

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