ghrelin在急性壞死性胰腺炎并急性胃黏膜損傷中的作用研究
發(fā)布時(shí)間:2021-12-19 18:26
目的探討在急性壞死性胰腺炎并急性胃黏膜損傷(AGML)時(shí),胃組織中g(shù)hrelin的變化及其與氧化應(yīng)激及致炎因子NF-κB變化的關(guān)系,同時(shí)研究褪黑素對胃組織保護(hù)作用與ghrelin的關(guān)系。方法72只大鼠隨機(jī)分為對照組(C組,n=24)、ANP組(A組,n=24)和褪黑素干預(yù)組(M組,n=24)。A組分3次腹腔內(nèi)注射6%L-精氨酸(L-Arg)1.5 g/kg建立ANP模型;C組同法注射等量生理鹽水;M組于首次注射L-Arg前0.5 h腹腔內(nèi)注射褪黑素50μg/kg體重。各實(shí)驗(yàn)組大鼠于末次腹腔內(nèi)注射后6 h、12 h和24 h分批處死。光鏡下觀察胰腺和胃組織并進(jìn)行病理學(xué)評分,抽血測定血清淀粉酶、ghrelin、IL-6的含量,采用RT-PCR法檢測胃組織中g(shù)hrelin mRNA及NF-κB p65 mRNA的表達(dá),Western Blot法檢測胃組織中NF-κB p65蛋白表達(dá),同時(shí)檢測胃組織中MDA、MPO含量及T-SOD的活力。結(jié)果A組各時(shí)點(diǎn)大鼠的胰腺及胃組織病理學(xué)評分、血清淀粉酶、血清ghrelin及IL-6均較C組同時(shí)點(diǎn)明顯升高,而M組大鼠的胰腺及胃組織病理學(xué)評分、血清淀粉酶、血...
【文章來源】:廣西醫(yī)科大學(xué)廣西壯族自治區(qū)
【文章頁數(shù)】:59 頁
【學(xué)位級別】:碩士
【部分圖文】:
血清IL一6標(biāo)準(zhǔn)曲線
脂肪皂化現(xiàn)象,甚至出現(xiàn)紫黑腸段;胰腺外觀腫脹,顏色晦暗、灰白色、或暗紫色;肉眼病理變化隨時(shí)間延長而加重;A組大鼠肉眼觀病變程度最重,M組相對較輕。各組大鼠24h時(shí)點(diǎn)胰腺組織的肉眼觀見圖5。ANP組共使用動物37只,至實(shí)驗(yàn)結(jié)束存活26只,死亡率為29.73%(l1/37);M組使用動物34只,至實(shí)驗(yàn)結(jié)束存活30只,死亡率為H.76%(4/34)。圖5各組大鼠24h時(shí)點(diǎn)胰腺組織的肉眼觀 Fig.5GrossapPearaneesofPancreasindifferentgrouPratsat24hPoint1.2光鏡觀察C組大鼠鏡下見胰腺腺泡結(jié)構(gòu)完整,腺小葉清晰,偶見水腫或少量炎性細(xì)胞浸潤。A組及M組大鼠鏡下見胰腺腺泡水腫,在胰腺實(shí)質(zhì)、間質(zhì)內(nèi)有炎癥細(xì)胞浸潤或伴局灶性出血,實(shí)質(zhì)局灶性或彌漫性壞死,嚴(yán)重者腺小葉結(jié)構(gòu)消失
各組大鼠24h時(shí)點(diǎn)胰腺組織的HE染色鏡下觀(HE義100)
【參考文獻(xiàn)】:
期刊論文
[1]Ligustrazine alleviates gastric mucosal injury in a rat model of acute necrotizing pancreatitis[J]. Sheng-Chun Dang, Jian-Xin Zhang, Jian-Guo Qu, Xue-Qing Wang and Xin Fan Department of General Surgery, Affiliated Hospital of Jiangsu University, Zhenjiang 212001, China. Hepatobiliary & Pancreatic Diseases International. 2007(02)
[2]腹腔注射左旋精氨酸誘導(dǎo)急性壞死性胰腺炎大鼠模型[J]. 賴銘裕,梁志海,唐國都,孫學(xué)成. 世界華人消化雜志. 2006(22)
[3]大劑量左旋-精氨酸對大鼠胰腺及細(xì)胞因子的影響[J]. 孫學(xué)成,唐國都,吳建勝,梁志海,鄧德海. 中華消化雜志. 2006(06)
[4]Antioxidative effect of melatonin, ascorbic acid and N-acetylcysteine on caerulein-induced pancreatitis and associated liver injury in rats[J]. Mukaddes E■refoglu,Mehmet Gül,Burhan Ate■,Kadir Batoglu,Mukadder Ay■e Selimoglu. World Journal of Gastroenterology. 2006(02)
[5]Changes of gastric and intestinal blood flow, serum phospholipase A2 and interleukin-1β in rats with acute necrotizing pancreatitis[J]. Jian-Xin Zhang,Sheng-Chun Dang,Jian-Guo Qu,Xue-Qing Wang,Guo-Zuo Chen,Department of General Surgery,The Affiliated Hospital of Jiangsu University,Zhenjiang 212001,Jiangsu Province,China. World Journal of Gastroenterology. 2005(23)
本文編號:3544851
【文章來源】:廣西醫(yī)科大學(xué)廣西壯族自治區(qū)
【文章頁數(shù)】:59 頁
【學(xué)位級別】:碩士
【部分圖文】:
血清IL一6標(biāo)準(zhǔn)曲線
脂肪皂化現(xiàn)象,甚至出現(xiàn)紫黑腸段;胰腺外觀腫脹,顏色晦暗、灰白色、或暗紫色;肉眼病理變化隨時(shí)間延長而加重;A組大鼠肉眼觀病變程度最重,M組相對較輕。各組大鼠24h時(shí)點(diǎn)胰腺組織的肉眼觀見圖5。ANP組共使用動物37只,至實(shí)驗(yàn)結(jié)束存活26只,死亡率為29.73%(l1/37);M組使用動物34只,至實(shí)驗(yàn)結(jié)束存活30只,死亡率為H.76%(4/34)。圖5各組大鼠24h時(shí)點(diǎn)胰腺組織的肉眼觀 Fig.5GrossapPearaneesofPancreasindifferentgrouPratsat24hPoint1.2光鏡觀察C組大鼠鏡下見胰腺腺泡結(jié)構(gòu)完整,腺小葉清晰,偶見水腫或少量炎性細(xì)胞浸潤。A組及M組大鼠鏡下見胰腺腺泡水腫,在胰腺實(shí)質(zhì)、間質(zhì)內(nèi)有炎癥細(xì)胞浸潤或伴局灶性出血,實(shí)質(zhì)局灶性或彌漫性壞死,嚴(yán)重者腺小葉結(jié)構(gòu)消失
各組大鼠24h時(shí)點(diǎn)胰腺組織的HE染色鏡下觀(HE義100)
【參考文獻(xiàn)】:
期刊論文
[1]Ligustrazine alleviates gastric mucosal injury in a rat model of acute necrotizing pancreatitis[J]. Sheng-Chun Dang, Jian-Xin Zhang, Jian-Guo Qu, Xue-Qing Wang and Xin Fan Department of General Surgery, Affiliated Hospital of Jiangsu University, Zhenjiang 212001, China. Hepatobiliary & Pancreatic Diseases International. 2007(02)
[2]腹腔注射左旋精氨酸誘導(dǎo)急性壞死性胰腺炎大鼠模型[J]. 賴銘裕,梁志海,唐國都,孫學(xué)成. 世界華人消化雜志. 2006(22)
[3]大劑量左旋-精氨酸對大鼠胰腺及細(xì)胞因子的影響[J]. 孫學(xué)成,唐國都,吳建勝,梁志海,鄧德海. 中華消化雜志. 2006(06)
[4]Antioxidative effect of melatonin, ascorbic acid and N-acetylcysteine on caerulein-induced pancreatitis and associated liver injury in rats[J]. Mukaddes E■refoglu,Mehmet Gül,Burhan Ate■,Kadir Batoglu,Mukadder Ay■e Selimoglu. World Journal of Gastroenterology. 2006(02)
[5]Changes of gastric and intestinal blood flow, serum phospholipase A2 and interleukin-1β in rats with acute necrotizing pancreatitis[J]. Jian-Xin Zhang,Sheng-Chun Dang,Jian-Guo Qu,Xue-Qing Wang,Guo-Zuo Chen,Department of General Surgery,The Affiliated Hospital of Jiangsu University,Zhenjiang 212001,Jiangsu Province,China. World Journal of Gastroenterology. 2005(23)
本文編號:3544851
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