【Abstract】Objective To investigate the protective effects of epidermal growth factor (EGF) on pancreas of rats with acute pancreatitis(AP). Methods Seventytwo male SpragueDawley rats were randomly divided into 3 groups: Control group, AP group and AP-EGF group. Subcutaneously injection of EGF (0.1 μg/g) were given to animals in the AP-EGF group after the establishment of the model of AP. The other two groups of animals received the same volume of saline. At 6 h, 12 h and 24 h after induction of AP, 8 animals in each group were sacrificed respectively， 4 ml of blood sample was withdrawn from heart，2 ml for the analysis of amylase activity and 2 ml for MDA content in serum. Ascites was sucked with dry gauzes and was weighed thereafter. Changes of pancreas morphology were evaluated at every time point. The same part of pancreas was removed for measurement of MDA content, apoptotic index (AI) and histologic changes. Results Histologic injury of the animals in the APEGF group was milder than that in the AP group. Ascites weight in the AP-EGF group decreased significantly compared with that in the AP group at 12 h and 24 h 〔(4.53±1.29) g vs (6.58±1.47) g, (7.64±1.85) g vs (11.96±2.13) g，P＜0.05，P＜0.01〕. Amylase activity in the APEGF group also decreased significantly compared with that in the AP group at 12 h and 24 h 〔(142.0±8.3) U/L vs (187.9±10.4) U/L, (194.3±10.4) U/L vs (253.3±8.6) U/L, P＜0.05，P＜0.01〕. MDA content in plasm 〔(2.34±0.23) μmol/L vs (3.15±0.38) μmol/L, P＜0.05〕 and in pancreas 〔(5.21±1.46) μmol/g vs (7.68±1.63) μmol/g, P＜0.01〕 in the APEGF group decreased significantly compared with those in the AP group at 24 h. AI of pancreas in the APEGF group increased significantly compared withthatintheAPgroupafteroperation〔(16.22±3.53)%〖KG4vs (7.35±1.04)%, (11.67±2.40)% vs (4.81±0.86)%, (6.38±1.42)% vs (1.97±0.21)%, P＜0.01〕. Conclusion EGF may accelerate the restoration of pathologic injury and alleviate the hemorrhage and edema of pancreas. It may also depress MDA content in plasm and in pancreas so that to lessen oxidative damage. EGF may protect pancreas by inducing cellular apoptosis.
目的:水泡口炎病毒(Vesicular Stomatitis Virus,VSV)基质蛋白(Matrix protein, M 蛋白)具有诱导肿瘤细胞凋亡的作用,本研究探讨水泡口炎病毒基质蛋白对癌性腹水形成的抑制和治疗作用。方法:采用旋转蒸发仪法制备纳米脂质体,检测其体外转染效率;采用脂质体转染技术将已构建的水泡口炎病毒基质蛋白(VSVM)重组真核表达质粒pcDNA31M 转入MethA肿瘤细胞,转染后6小时将细胞接种于小鼠腹腔,观察小鼠腹水的形成情况;腹水治疗组,则先将MethA肿瘤细胞接种于小鼠腹腔,将小鼠随机分成4组,于接种后第二天分别用脂质体包裹的pcDNA31M、pcDNA31空载体、单纯脂质体及生理盐水治疗,观察腹水的形成情况。结果:自制的DOTAP:DOPE脂质体与Sigma公司购买的Lipofectamine 2000的转染效率相似,pcDNA31M明显抑制MethA腹水的形成,对已经形成的腹水也有明显的治疗作用,与对照组比较有统计学意义(Plt;005),同时明显延长了小鼠的存活期。结论: VSVM蛋白真核表达质粒pcDNA31M对小鼠腹水的形成有抑制作用,能延长小鼠的存活期,对于恶性腹水的治疗具有一定的意义,值得进一步研究。
Objective To investigate the pathogenesis of acute lung injury in rats induced by intra-peritoneally injection of perforative peritonitis ascitic fluids（PPAF） and the role of L-arginine （L-Arg） in acute lung injury in this model. Methods Perforative peritonitis （PP） models were established in 60 rats and PPAF were collected. Forty-eight rats were randomly divided equally into NS group，PPAF group, and L-Arg group. Rats were randomly subjected to death at 7 h and 12 h. Peripheral blood WBC were counted，levels of NO and malondialdehyde （MDA） in serum were examined. Lung injury score and wet/dry ratio were evaluated， and level of myeloperoxidase （MPO） in lung tissues and lung cell apoptosis were tested. Results WBC count of peripheral blood, levels of NO and MDA in serum， level of MPO in lung tissue, lung injury score， wet/dry ratio， and lung cell apoptosis rate in PPAF group were significantly higher than that in NS group at each time point（P＜0.01）. Level of NO in serum in L-Arg group was higher than that in PPAF group （P＜0.01）， but lower level of MDA in serum， lower level of MPO in lung tissue and lung injury score，lower wet/dry ratio， and lung cell apoptosis rate were observed in L-Arg group（P＜0.05）. In PPAF group and L-Arg group， level of NO in serum， wet/dry ratio, and lung cell apoptosis rate were higher at 12 h than that at 7 h（P=0.000）. Serum NO level was in negative correlation with serum MDA level （r=-0.257，P=0.021）， MPO level in lung tissue（r=-0.444， P=0.011），and lung cell apoptosis（r=-0.351， P =0.010） in PPAF group and L-Arg group， but serum MDA level was in positive correlation with cell apoptosis（r=0.969， P＜0.001） in each group. Conclusions Acute lung injury rats model can be established by intra-peritoneally injection of PPAF. Enhanced oxidizing reaction and cell apoptosis take part in the occurrence of acute lung injury. L-Arg plays a protective role in acute lung injury.
目的:为了探讨肝硬化放腹水后应用右旋糖酐40代替人血白蛋白治疗顽固性腹水的临床疗效及其经济性。方法:将216例肝硬化顽固性腹水患者随机分为A,B,C三组。A组:定期放腹水后应用右旋糖酐40;B组:定期放腹水后应用人血白蛋白或血浆;C组:传统治疗方法,限钠和不断增加利尿剂用量。结果:A组分别与B组,C组相比较,其腹水消退时间,ALT复常率,输血不良反应,住院费用,平均住院日,好转治愈率,死亡率,以上各项对比均有显著性差异(Plt;0.05)。血清蛋白量的对比无显著性差异(Pgt;0.05)。结论:肝硬化放腹水后应用右旋糖酐40治疗顽固性腹水,能缩短病程,减少住院日,降低医疗费用,降低死亡率。
Objective To explore the methods and effect of venous retransfusion of ascites on the treatment of the complicated patients with Budd-Chiari syndrome.Methods Eighteen complicated and (or) recrudescent patients with Budd-Chiari syndrome were treated by venous retransfusion of ascites between March 2006 and July 2009. The changes in abdominal girth, body weight, the urine volume of 24 h, liver function, renal function, and serum electrolyte measurements before and after treatment were compared. Results After retransfusion of 5 000 ml to 7 800 ml (mean 6 940 ml) ascites, the abdominal girth of patients decreased (Plt;0.05), the urine volume of 24 h tended to normal and during which no serious side-effect happened. The levels of serum BUN, CREA, prothrombin time (PT), and activated partial thromboplastin time (APTT) decreased significantly (Plt;0.05), furthermore the levels of total albumen and albumin increased significantly (Plt;0.05). The changes of serum electrolyte measurements were not significant (Pgt;0.05). The follow-up period for all the patients was in the range of 4 to 37 months (mean 19 months). Then 12 patients were treated by the second operation at 3-6 months after discharge. Conclusions The ascites retransfusion provides a safe and effective treatment option for patients with refractory ascites, and yields a higher likelihood of discharge compared with conventional paracentesis. It is useful in improving quality of life and winning the operational chance for such as patients with complicated Budd-Chiari syndrome.
Objective To investigate predictive value of procalcitonin (PCT) and C-reactive protein (CRP) levels for spontaneous bacterial peritonitis (SBP) in patients with liver cirrhosis ascites. Methods The clinical data of 140 patients with liver cirrhosis ascites treated in our hospital from January 2012 to January 2016 were retrospectively analyzed. According to the presence of SBP, these patients were divided into SBP group and non-SBP group. The clinical data were compared between these two groups. The receiver operating characteristic (ROC) curve was constructed to assess their sensitivities and specificities of PCT and CRP for diagnosis of SBP. Results The PCT and CRP levels of the SBP group were significantly higher than those of the non-SBP group (P<0.05). The differences of serum ALT, AST and white cell count between the SBP group and the non-SBP were not statistically significant (P>0.05). The ROC curve analysis showed that the area under the ROC curve of PCT and CRP were 0.895 and 0.926, their corresponding cut-off value 2.1 μg/L and 24.8 mg/L, the sensitivities were 86.9% and 89.5%, the specificities were 85.1% and 83.5%, respectively. Conclusion Abnormally elevated PCT and CRP levels might have an important detective value for SBP in patients with liver cirrhosis ascites.
目的:观察持续腹腔引流治疗顽固性腹水的疗效。方法:将顽固性腹水患者74例分为两组,治疗组38例,采用腹腔置管,持续腹腔引流腹水,3000mL/天;对照组36例,以常规补充白蛋白、限钠、限水、利尿治疗为主,比较两组的疗效。观察治疗组治疗前后患者尿量、腹围和体重变化,并比较治疗组与对照组在肝、肾功能及电解质的变化及总体疗效。结果:治疗组疗效优于对照组(Plt;0.05),与治疗前比较,治疗组治疗后尿量、腹围、体重有明显改变(Plt;0.01), 肝、肾功能及电解质与对照组比较无明显变化(Pgt;0.05)。结论:持续腹腔引流治疗顽固性腹水经济适用,不良反应少,患者依从性好。