大黃碳酸氫鈉對(duì)嚴(yán)重?zé)齻改c道動(dòng)力功能保護(hù)作用的研究
發(fā)布時(shí)間:2018-08-23 19:36
【摘要】:研究目的:觀察早期應(yīng)用大黃碳酸氫鈉片對(duì)嚴(yán)重?zé)齻改c道動(dòng)力功能的保護(hù)作用。 方法:將54只SD大鼠隨機(jī)分為3組:正常組(N組,n=6)、對(duì)照組(B組,n=24)、治療組(S組,n=24)。后兩組又分為傷后6h、12h、24h、48h四個(gè)時(shí)相點(diǎn),每個(gè)時(shí)相點(diǎn)6只大鼠。處理方法:①N組:不做處理,觀察硫酸鋇混懸液在小腸中移行距離占整個(gè)小腸的百分比值以及血漿中MTL、SP、VIP、SS的含量。②B組:制備成30%背部Ⅲ度燙傷模型,并于傷后立刻將2ml生理鹽水灌胃,每天2次;③S組:同樣方法制備成30%背部Ⅲ度燙傷模型,并與B組同時(shí)段將大黃碳酸氫鈉片1片溶解于2ml生理鹽水后灌胃。各時(shí)相點(diǎn)前30min行大鼠硫酸鋇混懸液灌胃(2mL/100g),于各時(shí)相點(diǎn)頸椎脫臼處死大鼠,剖腹,取胃及小腸平鋪于黑紙上,觀察硫酸鋇混懸液在小腸中移行距離占整個(gè)小腸的百分比值;并同時(shí)抽取大鼠腹腔靜脈血,用酶聯(lián)免疫分析法檢測(cè)血漿MTL、SP、VIP、SS的含量。 結(jié)果:(1)大鼠小腸推進(jìn)的百分率在傷后6h開始下降,12h降至最低值,傷后24h開始回升,48h仍低于正常組;治療組各時(shí)相點(diǎn)小腸推進(jìn)的百分率明顯高于對(duì)照組。(2)MTL和SP在傷后6小時(shí)開始下降且達(dá)到最低值,12小時(shí)開始上升,48小時(shí)仍低于正常值;治療組MTL和P物質(zhì)下降幅度明顯降低,各時(shí)相點(diǎn)均高于對(duì)照組,傷后48小時(shí)基本接近正常值。(3)VIP和SS傷后6小時(shí)達(dá)到最高值,傷后12小時(shí)開始下降,傷后48小時(shí)仍高于正常值;治療組VIP和SS上升幅度較低,且各時(shí)相點(diǎn)均低于對(duì)照組,傷后48小時(shí)基本恢復(fù)到正常水平。結(jié)論:1.嚴(yán)重燙傷早期胃腸道的蠕動(dòng)及推進(jìn)功能降低。 2.大黃碳酸氫鈉能調(diào)控嚴(yán)重燙傷早期血漿中胃腸激素的分泌和釋放,,改善燒傷后胃腸道動(dòng)力系統(tǒng)抑制狀態(tài),從而保護(hù)燒傷后胃腸動(dòng)力功能。
[Abstract]:Objective: to observe the protective effect of rhubarb sodium bicarbonate tablets on gastrointestinal motility after severe burn. Methods: 54 SD rats were randomly divided into 3 groups: normal group (group N), control group (group B) and treatment group (group S). The latter two groups were divided into four time points, 6 rats at each time point, 12 hours after injury and 24 hours and 48 hours after injury. Treatment method: without treatment, the percentage of transit distance of barium sulfate suspension in the whole small intestine and the content of MTL,SP,VIP,SS in plasma were observed. Group 2B: the model of 30% back 鈪
本文編號(hào):2199703
[Abstract]:Objective: to observe the protective effect of rhubarb sodium bicarbonate tablets on gastrointestinal motility after severe burn. Methods: 54 SD rats were randomly divided into 3 groups: normal group (group N), control group (group B) and treatment group (group S). The latter two groups were divided into four time points, 6 rats at each time point, 12 hours after injury and 24 hours and 48 hours after injury. Treatment method: without treatment, the percentage of transit distance of barium sulfate suspension in the whole small intestine and the content of MTL,SP,VIP,SS in plasma were observed. Group 2B: the model of 30% back 鈪
本文編號(hào):2199703
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