AIM: To evaluate the protective effects of transplanted and mobilized bone marrow stem cells (BMSCs) on mice with severe acute pancreatitis (SAP) and to probe into their possible mechanisms.METHODS: A mouse model of S...AIM: To evaluate the protective effects of transplanted and mobilized bone marrow stem cells (BMSCs) on mice with severe acute pancreatitis (SAP) and to probe into their possible mechanisms.METHODS: A mouse model of SAP induced by intraparitoneal injections of L-arginine was employed in the present study.Two hundred female Balb/c mice weighing 18-22 g were randomly assigned into 4 groups. Group A was the stem cell mobilized group treated by injection of granulocytecolony stimulating factor (G-CSF) into mice for 4 days at a dose of 40 μg@kg-1@d-1 before induction of SAP. Group B was the group of BMSCs transplantation, in which the mice were given the isolated BMSCs via the tail vein 4 days prior to induction of SAP. Group C served as the model control and only SAP was induced. The mice without induction of SAP in group D acted as the normal control. At the time of animal sacrifice at 24, 48 and 72 h after induction of SAP, blood samples were obtained and prepared to detect serum amylase, while the abdominal viscera were examined both grossly and microscopically for the observation of pathological changes.RESULTS: The mortality of mice in the model control, groups A and B was 34%, 8% and 10% respectively within 72 h after induction of SAP. The serum level of amylase in the model control was significantly increased at all time points after induction of SAP as compared with that of the normal control (P＜0.05-0.01). When the mice were pretreated with BMSCs' transplantation or G-CSF injection, their serum level of amylase was significantly reduced at 48 h and 72 h after induction of SAP in comparison with that of the model control (P＜0.05-0.01). In accordance with these observations,both gross and microscopic examinations revealed that the pathological changes of SAP in mice pretreated with BMSCs transplantation or G-CSF injection were considerably attenuated as compared with those in the model control at all observed time points.CONCLUSION: Both transplanted allogenic and mobilized autologous BMSCs can protect mo展开更多
目的:研究血清炎症因子粒细胞集落刺激因子(G-CSF)、单核细胞趋化蛋白-1(MCP-1)、干扰素诱导蛋白-10(IP-10)在支气管肺发育不良(BPD)早产儿中的表达及其临床意义。方法:选取自2018年1月至2019年9月本院儿科收治的126例早产儿作为研究对...目的:研究血清炎症因子粒细胞集落刺激因子(G-CSF)、单核细胞趋化蛋白-1(MCP-1)、干扰素诱导蛋白-10(IP-10)在支气管肺发育不良(BPD)早产儿中的表达及其临床意义。方法:选取自2018年1月至2019年9月本院儿科收治的126例早产儿作为研究对象(胎龄<32周和/或出生体重≤1500g),根据病情分为非BPD组48例,BPD组78例,其中轻度BPD组30例,中度BPD组31例及重度BPD组17例。采用酶联免疫吸附实验(ELISA)检测各组患儿生后不同时间点血清G-CSF、MCP-1、IP-10水平的差异。受试者工作曲线(ROC)分析血清G-CSF、MCP-1、IP-10对BPD的诊断价值。结果:与非BPD组比较,BPD组早产儿胎龄和出生体重均较小,5 min Apgar评分明显较低,机械通气时间和总吸氧时间较长,新生儿肺炎和新生儿窒息发生率较高(均P<0.05);BPD组各时间点血清G-CSF、MCP-1及IP-10水平明显升高(均P<0.05)。重度BPD组早产儿在第14天和第28天时血清G-CSF,MCP-1及IP-10水平明显高于轻度、中度BPD组患儿(P<0.05)。第1天血清G-CSF、MCP-1、IP-10的ROC曲线下面积(AUC)分别为0.763、0.751及0.766,第14天分别为0.913、0.925及0.867。结论:BPD患儿血清G-CSF、MCP-1、IP-10水平明显升高,并且升高的程度与BPD疾病严重程度有关,检测早产儿血清G-CSF、MCP-1、IP-10水平有助于BPD的早期诊断。展开更多
文摘AIM: To evaluate the protective effects of transplanted and mobilized bone marrow stem cells (BMSCs) on mice with severe acute pancreatitis (SAP) and to probe into their possible mechanisms.METHODS: A mouse model of SAP induced by intraparitoneal injections of L-arginine was employed in the present study.Two hundred female Balb/c mice weighing 18-22 g were randomly assigned into 4 groups. Group A was the stem cell mobilized group treated by injection of granulocytecolony stimulating factor (G-CSF) into mice for 4 days at a dose of 40 μg@kg-1@d-1 before induction of SAP. Group B was the group of BMSCs transplantation, in which the mice were given the isolated BMSCs via the tail vein 4 days prior to induction of SAP. Group C served as the model control and only SAP was induced. The mice without induction of SAP in group D acted as the normal control. At the time of animal sacrifice at 24, 48 and 72 h after induction of SAP, blood samples were obtained and prepared to detect serum amylase, while the abdominal viscera were examined both grossly and microscopically for the observation of pathological changes.RESULTS: The mortality of mice in the model control, groups A and B was 34%, 8% and 10% respectively within 72 h after induction of SAP. The serum level of amylase in the model control was significantly increased at all time points after induction of SAP as compared with that of the normal control (P＜0.05-0.01). When the mice were pretreated with BMSCs' transplantation or G-CSF injection, their serum level of amylase was significantly reduced at 48 h and 72 h after induction of SAP in comparison with that of the model control (P＜0.05-0.01). In accordance with these observations,both gross and microscopic examinations revealed that the pathological changes of SAP in mice pretreated with BMSCs transplantation or G-CSF injection were considerably attenuated as compared with those in the model control at all observed time points.CONCLUSION: Both transplanted allogenic and mobilized autologous BMSCs can protect mo
文摘目的:研究血清炎症因子粒细胞集落刺激因子(G-CSF)、单核细胞趋化蛋白-1(MCP-1)、干扰素诱导蛋白-10(IP-10)在支气管肺发育不良(BPD)早产儿中的表达及其临床意义。方法:选取自2018年1月至2019年9月本院儿科收治的126例早产儿作为研究对象(胎龄<32周和/或出生体重≤1500g),根据病情分为非BPD组48例,BPD组78例,其中轻度BPD组30例,中度BPD组31例及重度BPD组17例。采用酶联免疫吸附实验(ELISA)检测各组患儿生后不同时间点血清G-CSF、MCP-1、IP-10水平的差异。受试者工作曲线(ROC)分析血清G-CSF、MCP-1、IP-10对BPD的诊断价值。结果:与非BPD组比较,BPD组早产儿胎龄和出生体重均较小,5 min Apgar评分明显较低,机械通气时间和总吸氧时间较长,新生儿肺炎和新生儿窒息发生率较高(均P<0.05);BPD组各时间点血清G-CSF、MCP-1及IP-10水平明显升高(均P<0.05)。重度BPD组早产儿在第14天和第28天时血清G-CSF,MCP-1及IP-10水平明显高于轻度、中度BPD组患儿(P<0.05)。第1天血清G-CSF、MCP-1、IP-10的ROC曲线下面积(AUC)分别为0.763、0.751及0.766,第14天分别为0.913、0.925及0.867。结论:BPD患儿血清G-CSF、MCP-1、IP-10水平明显升高,并且升高的程度与BPD疾病严重程度有关,检测早产儿血清G-CSF、MCP-1、IP-10水平有助于BPD的早期诊断。
