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3篇 您的检索式:作者名="Rodica Cosen"
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1Relaxin prevents the development of severe acute pancreatitis显示文摘瞄准:为了调查尖锐胰腺炎(AP ) 的严厉,被联系到白血球激活,煽动性的起来规定和联系到 ischemia-reperfusion 损害的微循环混乱的紧张。支持 inflammatory 调停人的 Microvascular 完整和抑制在 AP 的进化是关键因素的。松弛激素是被归因的像胰岛素的荷尔蒙经由氮的氧化物小径的 vasorelaxant 性质当作为糖皮质激素受体收缩筋表现时。方法:AP 被 bilio 胰腺的 duct-outlet-exclusion closed-duodenal-loops 模型导致。有松弛激素的处理在不同时间点被做。由由 mifepristone 的阻塞被考虑的 L 名字和糖皮质激素受体(GR ) 的氮的氧化物 synthase 抑制。AP 严厉被生物化学、组织病理学说的分析估计。结果:有松弛激素的处理减少了浆液淀粉酶,脂肪分解酵素, C 反应的蛋白质, IL-6, IL-10, hsp72, LDH 和 8-isoprostane 象一样胰腺并且肺 myeloperoxidase。腺泡和脂肪坏死,出血和 neutrophil 渗透也被减少。当 caspases 2-3-8 和 9 项活动被增加时, ATP 弄空和 ADP/ATP 比率被减少。L 名字和 mifepristone 减少了松弛激素的效率。结论:松弛激素结果在当保存微发行量并且在坏死上赞成 apoptosis 时,联合 GR 收缩筋的性质的 AP 的处理有益。Laura Iris Cosen-Binker Marcelo Gustavo Binker Rodica Cosen Gustavo Negri Osvaldo Tiscornia 2006World Journal of Gastroenterology2006,12,10:10
2Chronic stress sensitizes rats to pancreatitis induced by cerulein:Role of TNF-α显示文摘AIM:To investigate chronic stress as a susceptibility factor for developing pancreatitis,as well as tumor necrosis factor-α (TNF-α) as a putative sensitizer.METHODS:Rat pancreatic acini were used to analyze the influence of TNF-α on submaximal (50 pmol/L) cholecystokinin (CCK) stimulation.Chronic restraint (4 h every day for 21 d) was used to evaluate the effects of submaximal (0.2 μg/kg per hour) cerulein stimulation on chronically stressed rats.RESULTS:In vitro exposure of pancreatic acini toTNF-α disorganized the actin cytoskeleton.This was further increased by TNF-α/CCK treatment,which additionally reduced amylase secretion,and increased trypsin and nuclear factor-κB activities in a protein-kinase-C δ and ε-dependent manner.TNF-α/CCK also enhanced caspases' activity and lactate dehydrogenase release,induced ATP loss,and augmented the ADP/ATP ratio.In vivo,rats under chronic restraint exhibited elevated serum and pancreatic TNF-α levels.Serum,pancreatic,and lung inflammatory parameters,as well as caspases' activity in pancreatic and lung tissue,were substantially enhanced in stressed/cerulein-treated rats,which also experienced tissues' ATP loss and greater ADP/ATP ratios.Histological examination revealed that stressed/cerulein-treated animals developed abundant pancreatic and lung edema,hemorrhage and leukocyte infiltrate,and pancreatic necrosis.Pancreatitis severity was greatly decreased by treating animals with an anti-TNF-αantibody,which diminished all inflammatory parameters,histopathological scores,and apoptotic/necrotic markers in stressed/cerulein-treated rats.CONCLUSION:In rats,chronic stress increases susceptibility for developing pancreatitis,which involves TNF-α sensitization of pancreatic acinar cells to undergo injury by physiological cerulein stimulation.Marcelo G Binker Andres A Binker-Cosen Daniel Richards Herbert Y Gaisano Rodica H de Cosen Laura I Cosen-Binker 2010World Journal of Gastroenterology2010,16,44:7
3Hypoxia–reoxygenation increase invasiveness of PANC-1 cells through Rac1/MMP-2显示文摘Marcelo G. Binker Andres A. Binker-Cosen Daniel Richards Herbert Y. Gaisano Rodica H. de Cosen Laura I. Cosen-Binker 2010Biochemical and Biophysical Research Communications2010,,3:1
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