目的应用生物信息学方法筛选出经尸体检验确诊的婴儿猝死综合征(sudden infant death syndrome,SIDS)和婴儿感染性猝死(infectious sudden death in infancy,ISDI)死者脑、心脏和肝组织中共有的差异表达mRNA,探讨SIDS与ISDI的共有分子...目的应用生物信息学方法筛选出经尸体检验确诊的婴儿猝死综合征(sudden infant death syndrome,SIDS)和婴儿感染性猝死(infectious sudden death in infancy,ISDI)死者脑、心脏和肝组织中共有的差异表达mRNA,探讨SIDS与ISDI的共有分子标记和发生机制。方法下载GSE70422、GSE136992数据集,用R软件limma包筛选SIDS和ISDI死者不同组织样本中差异表达的mRNA,进行重叠分析,并用R软件clusterProfiler包进行基因本体论(gene ontology,GO)和京都基因和基因组数据库(Kyoto Encyclopedia of Genes and Genomes,KEGG)富集分析,使用STRING数据库构建蛋白质-蛋白质相互作用(protein-protein interaction,PPI)网络,基于cytoHubba插件筛选hub基因。结果与数据集中的对照组相比,SIDS和ISDI死者组织样本中有19个显著的共同差异基因,其中心脏组织中16个、肝组织中3个,心脏组织星形肌动蛋白1(astrotactin 1,ASTN1)基因表达差异最显著。PPI网络确定了Ras同源基因家族成员A(ras homolog family member A,RHOA)、整合素亚单位α1(integrin subunit alpha 1,ITGA1)和H2B簇状组蛋白5(H2B clustered histone 5,H2BC5)是hub基因。GO和KEGG分析结果表明,共同差异基因富集在肌动蛋白细胞骨架的调节、黏着斑及对霉酚酸的反应等分子通路中。结论ASTN1、RHOA和ITGA1可能参与SIDS与ISDI的发生发展。共同差异基因富集在免疫与炎症反应相关通路中,说明SIDS与ISDI在免疫与炎症反应方面可能存在共同的分子调控机制。这些发现有望为SIDS与ISDI的分子解剖和法医学鉴定提供新的生物标记。展开更多
The oily wastewater generated from pretreatment unit of electrocoating industry contains oils, phosphate, organic solvents, and surfactants. In order to improve the removal efficiencies of phosphate and oils, to mitig...The oily wastewater generated from pretreatment unit of electrocoating industry contains oils, phosphate, organic solvents, and surfactants. In order to improve the removal efficiencies of phosphate and oils, to mitigate the membrane fouling, coagulation for ceramic membrane microfiltration of oily wastewater was performed. The results of filtration tests show that the membrane fouling decreased and the permeate flux and quality increased with coagulation as pretreatment. At the coagulant Ca （OH）2 dosage of 900 mg/L, the removal efficiency of phosphate was increased from 46.4% without coagulation to 99.6%; the removal of COD and oils were 97.0% and 99.8%, respectively. And the permeate flux was about 70% greater than that when Ca（OH）2 was not used. The permeate obtained from coagulation and microfiltration can be reused as make-up water, and the recommended operation conditions for pilot and industrial application are transmembrane pressure of 0.10 MPa and cross-flow velocity of 5 m/s. The comparison results show that 0.2 μm ZrO2 microfilter with coagulation could be used to perform the filtration rather than conventional ultrafilter, with very substantial gain in flux and removal efficiency of phosphate.展开更多
文摘目的探讨oXiris-内毒素吸附技术治疗终末期肾病(end-stage renal disease,ESRD)合并脓毒症的疗效。方法回顾性收集2020年1月1日—2023年7月30日于河南科技大学第一附属医院住院治疗的ESRD合并脓毒症患者41例,其中oXiris组22例,连续性静脉-静脉血液滤过(continuous veno-venous hemofiltration,CVVH)联合血液灌流(hemoperfusion,HP)组19例。比较2组患者住院死亡率、ICU住院时长、机械通气时长、连续性肾脏替代治疗时长、机械通气患者数、使用滤器数以及在血液净化治疗开始时及治疗后急性生理与慢性健康评分(acute physiology and chronic health evaluation,APACHE-Ⅱ)、去甲肾上腺素(norepinephrine,NE)用量以及实验室检查结果。结果oXiris组患者机械通气时长少于CVVH+HP组(Z=-3.749,P=0.001)。治疗后oXiris组APACHE-Ⅱ评分(t=-4.481,P=0.001)、NE用量(t=-2.036,P=0.049)、C反应蛋白(Z=-2.850,P=0.004)、白细胞介素-6(Z=-2.512,P=0.012)水平较CVVH+HP组降低。结论oXiris-内毒素吸附技术能有效降低ESRD合并脓毒症患者炎症介质,且效果优于CVVH+HP,具有良好的临床应用价值。
文摘目的应用生物信息学方法筛选出经尸体检验确诊的婴儿猝死综合征(sudden infant death syndrome,SIDS)和婴儿感染性猝死(infectious sudden death in infancy,ISDI)死者脑、心脏和肝组织中共有的差异表达mRNA,探讨SIDS与ISDI的共有分子标记和发生机制。方法下载GSE70422、GSE136992数据集,用R软件limma包筛选SIDS和ISDI死者不同组织样本中差异表达的mRNA,进行重叠分析,并用R软件clusterProfiler包进行基因本体论(gene ontology,GO)和京都基因和基因组数据库(Kyoto Encyclopedia of Genes and Genomes,KEGG)富集分析,使用STRING数据库构建蛋白质-蛋白质相互作用(protein-protein interaction,PPI)网络,基于cytoHubba插件筛选hub基因。结果与数据集中的对照组相比,SIDS和ISDI死者组织样本中有19个显著的共同差异基因,其中心脏组织中16个、肝组织中3个,心脏组织星形肌动蛋白1(astrotactin 1,ASTN1)基因表达差异最显著。PPI网络确定了Ras同源基因家族成员A(ras homolog family member A,RHOA)、整合素亚单位α1(integrin subunit alpha 1,ITGA1)和H2B簇状组蛋白5(H2B clustered histone 5,H2BC5)是hub基因。GO和KEGG分析结果表明,共同差异基因富集在肌动蛋白细胞骨架的调节、黏着斑及对霉酚酸的反应等分子通路中。结论ASTN1、RHOA和ITGA1可能参与SIDS与ISDI的发生发展。共同差异基因富集在免疫与炎症反应相关通路中,说明SIDS与ISDI在免疫与炎症反应方面可能存在共同的分子调控机制。这些发现有望为SIDS与ISDI的分子解剖和法医学鉴定提供新的生物标记。
文摘The oily wastewater generated from pretreatment unit of electrocoating industry contains oils, phosphate, organic solvents, and surfactants. In order to improve the removal efficiencies of phosphate and oils, to mitigate the membrane fouling, coagulation for ceramic membrane microfiltration of oily wastewater was performed. The results of filtration tests show that the membrane fouling decreased and the permeate flux and quality increased with coagulation as pretreatment. At the coagulant Ca （OH）2 dosage of 900 mg/L, the removal efficiency of phosphate was increased from 46.4% without coagulation to 99.6%; the removal of COD and oils were 97.0% and 99.8%, respectively. And the permeate flux was about 70% greater than that when Ca（OH）2 was not used. The permeate obtained from coagulation and microfiltration can be reused as make-up water, and the recommended operation conditions for pilot and industrial application are transmembrane pressure of 0.10 MPa and cross-flow velocity of 5 m/s. The comparison results show that 0.2 μm ZrO2 microfilter with coagulation could be used to perform the filtration rather than conventional ultrafilter, with very substantial gain in flux and removal efficiency of phosphate.
