目的:研究胰腺导管腺癌组织中WT1,IGF-IR的表达与细胞凋亡关系．方法:应用免疫组化技术检测WT1,IGF-IR在49例胰腺导管腺癌及15例正常胰腺组织中的表达,并应用TUNEL法检测细胞凋亡,计算凋亡指数(AI)．结果:WT1,IGF-IR在正常胰腺组织中的...目的:研究胰腺导管腺癌组织中WT1,IGF-IR的表达与细胞凋亡关系．方法:应用免疫组化技术检测WT1,IGF-IR在49例胰腺导管腺癌及15例正常胰腺组织中的表达,并应用TUNEL法检测细胞凋亡,计算凋亡指数(AI)．结果:WT1,IGF-IR在正常胰腺组织中的阳性表达率分别为26．67％(4／15)、40．00％(6／15);在胰腺导管腺癌组织中的阳性表达率分别为71．43％(35／49)、77．55％(38／49),两者在癌组织中的表达分别明显高于其在正常胰腺组织中的表达(P<0．05),且在癌组织中的表达呈正相关(r=0．385,P<0．05)．正常胰腺组织及癌组织中的AI分别为0．41±0．13、5．93±4．18,两者比较有显著性差异(P<0．05),癌组织中AI随组织分化程度的升高而升高．IGF-IR表达阳性组的AI显著低于阴性组(4．11±3．68 vs 12．21±5．67,P<0．01)．结论:胰腺导管腺癌组织中IGF-IR的高表达抑制细胞凋亡,WT1,IGF-IR的高表达以及细胞凋亡的减少可能在胰腺导管腺癌的发生发展中起重要作用．展开更多
Background.Arterial blood gas(ABG)parameters such as pH form part of multi-parameter scoring systems for predicting severe acute pancreatitis;however,literature on detailed evaluation of ABG alone in this context is s...Background.Arterial blood gas(ABG)parameters such as pH form part of multi-parameter scoring systems for predicting severe acute pancreatitis;however,literature on detailed evaluation of ABG alone in this context is scarce.Methods.Patients with acute pancreatitis presenting to our unit between January 2012 and November 2013 were prospectively studied.ABG analysis was done at admission and development of organ failure,any need for intervention,and mortality were noted.The association between various parameters of ABG analysis and the development of organ failure or local complications,need for interventions(endoscopic/radiological/surgical)and mortality were analysed.Results.Two hundred and five patients(mean age:39.33-13.85 years;61.0%males)were prospectively studied.The aetiology of acute pancreatitis was alcohol in 93 patients(45.4%)and gall stone disease in 73(35.6%).Organ failure developed in 71.2%patients and 83.9%had local complications.In 18%of patients,endoscopic/radiological/surgical interventions were needed and 14.6%died.The patients(n=35)with metabolic acidosis(pH<7.35)suffered higher frequency of organ failure,need for interventions and mortality.Patients with low arterial bicarbonate levels,as well as higher base deficit,also displayed higher frequency of organ failure,need for interventions and mortality.The receiver operating characteristic(ROC)curves for pH<7.35,bicarbonate<22 meq/L and base deficit of>4 meq/L for prediction of mortality were 0.771(95%CI:0.664–0.878),0.707(95%CI:0.622–0.791)and 0.780(95%CI:0.693–0.867),respectively.Conclusion.Arterial pH,bicarbonate levels,and base deficit at presentation are useful early markers for predicting adverse outcome in acute pancreatitis.展开更多
文摘目的:研究胰腺导管腺癌组织中WT1,IGF-IR的表达与细胞凋亡关系．方法:应用免疫组化技术检测WT1,IGF-IR在49例胰腺导管腺癌及15例正常胰腺组织中的表达,并应用TUNEL法检测细胞凋亡,计算凋亡指数(AI)．结果:WT1,IGF-IR在正常胰腺组织中的阳性表达率分别为26．67％(4／15)、40．00％(6／15);在胰腺导管腺癌组织中的阳性表达率分别为71．43％(35／49)、77．55％(38／49),两者在癌组织中的表达分别明显高于其在正常胰腺组织中的表达(P<0．05),且在癌组织中的表达呈正相关(r=0．385,P<0．05)．正常胰腺组织及癌组织中的AI分别为0．41±0．13、5．93±4．18,两者比较有显著性差异(P<0．05),癌组织中AI随组织分化程度的升高而升高．IGF-IR表达阳性组的AI显著低于阴性组(4．11±3．68 vs 12．21±5．67,P<0．01)．结论:胰腺导管腺癌组织中IGF-IR的高表达抑制细胞凋亡,WT1,IGF-IR的高表达以及细胞凋亡的减少可能在胰腺导管腺癌的发生发展中起重要作用．
文摘Background.Arterial blood gas(ABG)parameters such as pH form part of multi-parameter scoring systems for predicting severe acute pancreatitis;however,literature on detailed evaluation of ABG alone in this context is scarce.Methods.Patients with acute pancreatitis presenting to our unit between January 2012 and November 2013 were prospectively studied.ABG analysis was done at admission and development of organ failure,any need for intervention,and mortality were noted.The association between various parameters of ABG analysis and the development of organ failure or local complications,need for interventions(endoscopic/radiological/surgical)and mortality were analysed.Results.Two hundred and five patients(mean age:39.33-13.85 years;61.0%males)were prospectively studied.The aetiology of acute pancreatitis was alcohol in 93 patients(45.4%)and gall stone disease in 73(35.6%).Organ failure developed in 71.2%patients and 83.9%had local complications.In 18%of patients,endoscopic/radiological/surgical interventions were needed and 14.6%died.The patients(n=35)with metabolic acidosis(pH<7.35)suffered higher frequency of organ failure,need for interventions and mortality.Patients with low arterial bicarbonate levels,as well as higher base deficit,also displayed higher frequency of organ failure,need for interventions and mortality.The receiver operating characteristic(ROC)curves for pH<7.35,bicarbonate<22 meq/L and base deficit of>4 meq/L for prediction of mortality were 0.771(95%CI:0.664–0.878),0.707(95%CI:0.622–0.791)and 0.780(95%CI:0.693–0.867),respectively.Conclusion.Arterial pH,bicarbonate levels,and base deficit at presentation are useful early markers for predicting adverse outcome in acute pancreatitis.
