ghrelin在急性坏死性胰腺炎并急性胃黏膜损伤中的作用研究
发布时间:2021-12-19 18:26
目的探讨在急性坏死性胰腺炎并急性胃黏膜损伤(AGML)时,胃组织中ghrelin的变化及其与氧化应激及致炎因子NF-κB变化的关系,同时研究褪黑素对胃组织保护作用与ghrelin的关系。方法72只大鼠随机分为对照组(C组,n=24)、ANP组(A组,n=24)和褪黑素干预组(M组,n=24)。A组分3次腹腔内注射6%L-精氨酸(L-Arg)1.5 g/kg建立ANP模型;C组同法注射等量生理盐水;M组于首次注射L-Arg前0.5 h腹腔内注射褪黑素50μg/kg体重。各实验组大鼠于末次腹腔内注射后6 h、12 h和24 h分批处死。光镜下观察胰腺和胃组织并进行病理学评分,抽血测定血清淀粉酶、ghrelin、IL-6的含量,采用RT-PCR法检测胃组织中ghrelin mRNA及NF-κB p65 mRNA的表达,Western Blot法检测胃组织中NF-κB p65蛋白表达,同时检测胃组织中MDA、MPO含量及T-SOD的活力。结果A组各时点大鼠的胰腺及胃组织病理学评分、血清淀粉酶、血清ghrelin及IL-6均较C组同时点明显升高,而M组大鼠的胰腺及胃组织病理学评分、血清淀粉酶、血...
【文章来源】:广西医科大学广西壮族自治区
【文章页数】:59 页
【学位级别】:硕士
【部分图文】:
血清IL一6标准曲线
脂肪皂化现象,甚至出现紫黑肠段;胰腺外观肿胀,颜色晦暗、灰白色、或暗紫色;肉眼病理变化随时间延长而加重;A组大鼠肉眼观病变程度最重,M组相对较轻。各组大鼠24h时点胰腺组织的肉眼观见图5。ANP组共使用动物37只,至实验结束存活26只,死亡率为29.73%(l1/37);M组使用动物34只,至实验结束存活30只,死亡率为H.76%(4/34)。图5各组大鼠24h时点胰腺组织的肉眼观 Fig.5GrossapPearaneesofPancreasindifferentgrouPratsat24hPoint1.2光镜观察C组大鼠镜下见胰腺腺泡结构完整,腺小叶清晰,偶见水肿或少量炎性细胞浸润。A组及M组大鼠镜下见胰腺腺泡水肿,在胰腺实质、间质内有炎症细胞浸润或伴局灶性出血,实质局灶性或弥漫性坏死,严重者腺小叶结构消失
各组大鼠24h时点胰腺组织的HE染色镜下观(HE义100)
【参考文献】:
期刊论文
[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诱导急性坏死性胰腺炎大鼠模型[J]. 赖铭裕,梁志海,唐国都,孙学成. 世界华人消化杂志. 2006(22)
[3]大剂量左旋-精氨酸对大鼠胰腺及细胞因子的影响[J]. 孙学成,唐国都,吴建胜,梁志海,邓德海. 中华消化杂志. 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)
本文编号:3544851
【文章来源】:广西医科大学广西壮族自治区
【文章页数】:59 页
【学位级别】:硕士
【部分图文】:
血清IL一6标准曲线
脂肪皂化现象,甚至出现紫黑肠段;胰腺外观肿胀,颜色晦暗、灰白色、或暗紫色;肉眼病理变化随时间延长而加重;A组大鼠肉眼观病变程度最重,M组相对较轻。各组大鼠24h时点胰腺组织的肉眼观见图5。ANP组共使用动物37只,至实验结束存活26只,死亡率为29.73%(l1/37);M组使用动物34只,至实验结束存活30只,死亡率为H.76%(4/34)。图5各组大鼠24h时点胰腺组织的肉眼观 Fig.5GrossapPearaneesofPancreasindifferentgrouPratsat24hPoint1.2光镜观察C组大鼠镜下见胰腺腺泡结构完整,腺小叶清晰,偶见水肿或少量炎性细胞浸润。A组及M组大鼠镜下见胰腺腺泡水肿,在胰腺实质、间质内有炎症细胞浸润或伴局灶性出血,实质局灶性或弥漫性坏死,严重者腺小叶结构消失
各组大鼠24h时点胰腺组织的HE染色镜下观(HE义100)
【参考文献】:
期刊论文
[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诱导急性坏死性胰腺炎大鼠模型[J]. 赖铭裕,梁志海,唐国都,孙学成. 世界华人消化杂志. 2006(22)
[3]大剂量左旋-精氨酸对大鼠胰腺及细胞因子的影响[J]. 孙学成,唐国都,吴建胜,梁志海,邓德海. 中华消化杂志. 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)
本文编号:3544851
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