不同急性應(yīng)激反應(yīng)大鼠模型的比較
發(fā)布時(shí)間:2018-11-05 12:38
【摘要】:目的比較三種急性應(yīng)激反應(yīng)動(dòng)物模型應(yīng)激相關(guān)指標(biāo)的變化,探討建立相對(duì)適宜的急性應(yīng)激反應(yīng)模型。方法健康成年雄性SD大鼠40只,隨機(jī)數(shù)字表法分為正常組(Ⅰ)、斷尾組(Ⅱ)、燒傷組(Ⅲ)和截肢組(Ⅳ),每組10只。正常組不做處理,斷尾組在靠近尾端的尾干處(即S3和S4脊髓神經(jīng)之間)橫切,燒傷組制成30%體表面積III度燙傷模型,截肢組以左下肢截肢作為嚴(yán)重創(chuàng)傷應(yīng)激。應(yīng)用酶聯(lián)免疫法檢測(cè)各組大鼠血清促腎上腺皮質(zhì)激素(adrenocorticotropic hormone,ACTH)和皮質(zhì)醇(corticosterone,CORT)的含量,免疫組織化學(xué)方法檢測(cè)下丘腦c-fos蛋白的表達(dá)水平。結(jié)果與I組相比,Ⅱ、Ⅲ、Ⅳ組ACTH、CORT水平均升高(P0.05),c-fos蛋白表達(dá)明顯增加(P0.05)。與Ⅲ組相比,Ⅱ、Ⅳ組ACTH、CORT水平、c-fos蛋白表達(dá)較高(P0.05);但I(xiàn)I組與IV組各項(xiàng)指標(biāo)相比差異無(wú)統(tǒng)計(jì)學(xué)意義(P0.05)。結(jié)論通過(guò)低位尾干切斷制作急性應(yīng)激反應(yīng)模型,具有操作步驟簡(jiǎn)單、致傷程度較一致、應(yīng)激效果明顯等特點(diǎn),能夠較客觀地反映人類遭遇突發(fā)事故時(shí)的應(yīng)激反應(yīng),是較為理想的急性應(yīng)激反應(yīng)的建模方式。
[Abstract]:Objective to compare the changes of stress related indexes in three acute stress response animal models and to establish a relatively suitable acute stress response model. Methods Forty healthy male SD rats were randomly divided into normal group (鈪,
本文編號(hào):2312113
[Abstract]:Objective to compare the changes of stress related indexes in three acute stress response animal models and to establish a relatively suitable acute stress response model. Methods Forty healthy male SD rats were randomly divided into normal group (鈪,
本文編號(hào):2312113
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