目的探究糖尿病性心肌病(diabetic cardiomyopathy,DCM)防治的潜在新靶点。方法取正常组和糖尿病组小鼠心肌组织用于蛋白质组学研究。利用R语言对GEO数据库GSE161931数据集进行分析,以P<0.05及|log_(2)FC|≥1为标准对芯片数据进行筛...目的探究糖尿病性心肌病(diabetic cardiomyopathy,DCM)防治的潜在新靶点。方法取正常组和糖尿病组小鼠心肌组织用于蛋白质组学研究。利用R语言对GEO数据库GSE161931数据集进行分析,以P<0.05及|log_(2)FC|≥1为标准对芯片数据进行筛选,得到相关差异基因。进一步采用R语言对差异基因进行基因本体论(gene ontology,GO)功能富集分析及京都基因与基因组(kyoto encyclopedia of genes and genomes,KEGG)富集分析。最后,构建糖尿病模型小鼠并评估其心功能,初步验证上述差异表达基因分析结果,并研究差异蛋白作为潜在DCM治疗靶标的可能性。结果结果显示,糖尿病模型小鼠表现出DCM症状,模型组较正常组显著升高的蛋白19个、降低的蛋白35个,这些差异蛋白主要富集于脂代谢信号通路及细胞因子和炎性细胞通路。基于以上结果,通过STRING分析蛋白-蛋白相互作用筛选出11个靶标蛋白,结合实验发现了ACOT2的潜在靶标作用。验证实验结果显示,抑制ACOT2可以减轻糖尿病模型小鼠的DCM症状。结论通过应用蛋白组学与DCM转录组分析,ACOT2可能是DCM防治的潜在新靶点。展开更多
文章对美国新发布的ACOT2项目报告的核心内容做了概述,对项目所开展的一种新的学习方式:基于挑战的学习(Challenge Based Learning,简称CBL)进行了追述,分析了CBL的构成要件和实施过程。最后,将ACOT项目与国内课程整合项目从项目指导理...文章对美国新发布的ACOT2项目报告的核心内容做了概述,对项目所开展的一种新的学习方式:基于挑战的学习(Challenge Based Learning,简称CBL)进行了追述,分析了CBL的构成要件和实施过程。最后,将ACOT项目与国内课程整合项目从项目指导理念、项目目标、项目推进方式、项目实验学科和课程整合模式等五个方面进行了比较分析,试图找出两国在整合项目上的不同取向,并尝试对我国教育信息化发展提出几点启示。展开更多
Acute coagulopathy of trauma-shock (ACoTS) occurs in 25% of patients with severe trauma in the early phase, and the mortality of those patients is four-fold higher than patients without coagulopathy. The pathophysio...Acute coagulopathy of trauma-shock (ACoTS) occurs in 25% of patients with severe trauma in the early phase, and the mortality of those patients is four-fold higher than patients without coagulopathy. The pathophysiology of this complicated phenomenon has been focused on in recent years. Tissue injury and hypoperfusion, activated protein C and Complements play important roles in the early phase after trauma. While the use of blood products, hypothermia, acidosis and inflammation are the main mechanism in late phase. Supplementing coagulation factors and platelets to improve ACoTS are inefficient. Only positive resuscitation from shock and improving tissue hypoperfusion have expected benefits.展开更多
文摘目的探究糖尿病性心肌病(diabetic cardiomyopathy,DCM)防治的潜在新靶点。方法取正常组和糖尿病组小鼠心肌组织用于蛋白质组学研究。利用R语言对GEO数据库GSE161931数据集进行分析,以P<0.05及|log_(2)FC|≥1为标准对芯片数据进行筛选,得到相关差异基因。进一步采用R语言对差异基因进行基因本体论(gene ontology,GO)功能富集分析及京都基因与基因组(kyoto encyclopedia of genes and genomes,KEGG)富集分析。最后,构建糖尿病模型小鼠并评估其心功能,初步验证上述差异表达基因分析结果,并研究差异蛋白作为潜在DCM治疗靶标的可能性。结果结果显示,糖尿病模型小鼠表现出DCM症状,模型组较正常组显著升高的蛋白19个、降低的蛋白35个,这些差异蛋白主要富集于脂代谢信号通路及细胞因子和炎性细胞通路。基于以上结果,通过STRING分析蛋白-蛋白相互作用筛选出11个靶标蛋白,结合实验发现了ACOT2的潜在靶标作用。验证实验结果显示,抑制ACOT2可以减轻糖尿病模型小鼠的DCM症状。结论通过应用蛋白组学与DCM转录组分析,ACOT2可能是DCM防治的潜在新靶点。
文摘文章对美国新发布的ACOT2项目报告的核心内容做了概述,对项目所开展的一种新的学习方式:基于挑战的学习(Challenge Based Learning,简称CBL)进行了追述,分析了CBL的构成要件和实施过程。最后,将ACOT项目与国内课程整合项目从项目指导理念、项目目标、项目推进方式、项目实验学科和课程整合模式等五个方面进行了比较分析,试图找出两国在整合项目上的不同取向,并尝试对我国教育信息化发展提出几点启示。
文摘Acute coagulopathy of trauma-shock (ACoTS) occurs in 25% of patients with severe trauma in the early phase, and the mortality of those patients is four-fold higher than patients without coagulopathy. The pathophysiology of this complicated phenomenon has been focused on in recent years. Tissue injury and hypoperfusion, activated protein C and Complements play important roles in the early phase after trauma. While the use of blood products, hypothermia, acidosis and inflammation are the main mechanism in late phase. Supplementing coagulation factors and platelets to improve ACoTS are inefficient. Only positive resuscitation from shock and improving tissue hypoperfusion have expected benefits.