目的:探讨aMAP(age-male-ALBI-platelet,aMAP)、天门冬氨酸氨基转移酶/血小板比率指数(aspartate aminotransferase-to-platelet ratio index,APRI)、基于4因子的肝纤维化指数(fibrosis index based on the 4 factors,FIB-4)及肝硬度值(...目的:探讨aMAP(age-male-ALBI-platelet,aMAP)、天门冬氨酸氨基转移酶/血小板比率指数(aspartate aminotransferase-to-platelet ratio index,APRI)、基于4因子的肝纤维化指数(fibrosis index based on the 4 factors,FIB-4)及肝硬度值(liver stiffness measurement,LSM)评估乙型肝炎(乙肝)肝硬化患者食管胃静脉曲张(esophageal gastric varices,EGV)程度的价值。方法:选取2018年4月到2022年5月期间在上海交通大学医学院附属瑞金医院确诊并接受治疗的乙肝肝硬化患者114例,对其进行肝功能、血常规、LSM、胃镜等检查,根据计算公式计算aMAP、APRI、FIB-4。根据胃镜结果将患者分为无EGV组(39例)、轻度EGV组(30例)、中度EGV组(23例)及重度EGV组(22例),比较4组间的aMAP、APRI、FIB-4。采用受试者操作特征曲线(receiver operator characteristic curve,ROC曲线)分析aMAP、APRI、FIB-4及LSM评估乙肝肝硬化患者EGV程度的价值。结果:EGV患者(包括轻度、中度及重度EGV组)的aMAP、APRI、FIB-4、LSM均显著高于无EGV的患者,差异有统计学意义(P<0.05)。轻度、中度及重度EGV组间的aMAP、APRI、FIB-4差异均有统计学意义(P<0.05);轻度EGV组与中度、重度EGV组间LSM差异有统计学意义(P<0.05)。aMAP评估EGV程度的ROC曲线下面积(the area under ROC curve,AUROC)为0.76,灵敏度为85.9%,特异度为65.7%;APRI、FIB-4和LSM评估EGV程度的AUROC分别为0.86、0.85、0.79,灵敏度分别为81.30%、82.80%、88.40%,特异度分别为82.90%、77.10%、66.80%。aMAP、APRI、FIB-4和LSM对肝硬化患者是否合并EGV有较好诊断价值(P<0.05)。aMAP、APRI、FIB-4对乙肝肝硬化患者的EGV程度有一定诊断价值(P<0.05),但特异度较低。结论:aMAP、APRI、FIB-4及LSM诊断乙肝肝硬化患者伴EGV的价值较高,而aMAP、APRI及FIB-4对其EGV程度有一定评估价值,可作为不适合做胃镜患者评估EGV的补充参考,为EGV的预防及治疗提供依据。展开更多
伴随着移动互联网的发展,基于位置的服务LBS(location Based Service)服务应用市场爆发式发展。随着大数据时代的到来,人们的位置信息数据规模巨大,如何利用云计算平台处理LBS应用及相关服务成为人们下一步的研究重点。本项目基于对LBS...伴随着移动互联网的发展,基于位置的服务LBS(location Based Service)服务应用市场爆发式发展。随着大数据时代的到来,人们的位置信息数据规模巨大,如何利用云计算平台处理LBS应用及相关服务成为人们下一步的研究重点。本项目基于对LBS在国内外的应用的研究,讨论云计算平台在LBS相关服务中实现方式;并基于高德地图位置云服务,构建基于Android黄冈旅游手机客户端系统。展开更多
A report that reviews Arctic contaminants that are not currently regulated as persistent organic pollutants(POPs)under international treaties was recently published by the Arctic Monitoring and Assessment Programme(AM...A report that reviews Arctic contaminants that are not currently regulated as persistent organic pollutants(POPs)under international treaties was recently published by the Arctic Monitoring and Assessment Programme(AMAP).We evaluated 464 individual chemicals mentioned in the AMAP report according to hazard profiles for POPs,very persistent and very bioaccumulative(vPvB)chemicals,and two novel and distinct hazard profiles we derived from the planetary boundary threat framework.The two planetary boundary threat profiles assign high priority to chemicals that will be mobile and poorly reversible environmental contaminants.Utilizing persistence as a proxy for poor reversibility,we defined two exposure-based hazard profiles;airborne persistent contaminants(APCs)and waterborne persistent contaminants(WPCs)that are potential planetary boundary threats.We used in silico estimates of physicochemical properties and multimedia models to calculate hazard metrics for persistence,bioaccumulation and long-range transport potential,then we synthesized this information into four exposure-based hazard scores of the potential of each AMAP chemical to fit each of the POP,vPvB,APC and WPC exposure-based hazard profiles.As an alternative to adopting a“bright line”score that represented cause for concern,we scored the AMAP chemicals by benchmarking against a reference set of 148 known and relatively well-studied contaminants and expressed their exposure-based hazard scores as percentile ranks against the scores of the reference set chemicals.Our results show that scores in the four exposure-based hazard profiles provide complementary information about the potential environmental exposure-based hazards of the AMAP chemicals.Our POP,vPvB,APC and WPC exposure-based hazard scores identify high priority chemicals for further study from among the AMAP contaminants.展开更多
文摘目的:探讨aMAP(age-male-ALBI-platelet,aMAP)、天门冬氨酸氨基转移酶/血小板比率指数(aspartate aminotransferase-to-platelet ratio index,APRI)、基于4因子的肝纤维化指数(fibrosis index based on the 4 factors,FIB-4)及肝硬度值(liver stiffness measurement,LSM)评估乙型肝炎(乙肝)肝硬化患者食管胃静脉曲张(esophageal gastric varices,EGV)程度的价值。方法:选取2018年4月到2022年5月期间在上海交通大学医学院附属瑞金医院确诊并接受治疗的乙肝肝硬化患者114例,对其进行肝功能、血常规、LSM、胃镜等检查,根据计算公式计算aMAP、APRI、FIB-4。根据胃镜结果将患者分为无EGV组(39例)、轻度EGV组(30例)、中度EGV组(23例)及重度EGV组(22例),比较4组间的aMAP、APRI、FIB-4。采用受试者操作特征曲线(receiver operator characteristic curve,ROC曲线)分析aMAP、APRI、FIB-4及LSM评估乙肝肝硬化患者EGV程度的价值。结果:EGV患者(包括轻度、中度及重度EGV组)的aMAP、APRI、FIB-4、LSM均显著高于无EGV的患者,差异有统计学意义(P<0.05)。轻度、中度及重度EGV组间的aMAP、APRI、FIB-4差异均有统计学意义(P<0.05);轻度EGV组与中度、重度EGV组间LSM差异有统计学意义(P<0.05)。aMAP评估EGV程度的ROC曲线下面积(the area under ROC curve,AUROC)为0.76,灵敏度为85.9%,特异度为65.7%;APRI、FIB-4和LSM评估EGV程度的AUROC分别为0.86、0.85、0.79,灵敏度分别为81.30%、82.80%、88.40%,特异度分别为82.90%、77.10%、66.80%。aMAP、APRI、FIB-4和LSM对肝硬化患者是否合并EGV有较好诊断价值(P<0.05)。aMAP、APRI、FIB-4对乙肝肝硬化患者的EGV程度有一定诊断价值(P<0.05),但特异度较低。结论:aMAP、APRI、FIB-4及LSM诊断乙肝肝硬化患者伴EGV的价值较高,而aMAP、APRI及FIB-4对其EGV程度有一定评估价值,可作为不适合做胃镜患者评估EGV的补充参考,为EGV的预防及治疗提供依据。
文摘伴随着移动互联网的发展,基于位置的服务LBS(location Based Service)服务应用市场爆发式发展。随着大数据时代的到来,人们的位置信息数据规模巨大,如何利用云计算平台处理LBS应用及相关服务成为人们下一步的研究重点。本项目基于对LBS在国内外的应用的研究,讨论云计算平台在LBS相关服务中实现方式;并基于高德地图位置云服务,构建基于Android黄冈旅游手机客户端系统。
基金Financial support for this study was provided by the European Union's Seventh Framework Programme for research,technological development and demonstration under grant agreement no.316665(A-TEAM project)。
文摘A report that reviews Arctic contaminants that are not currently regulated as persistent organic pollutants(POPs)under international treaties was recently published by the Arctic Monitoring and Assessment Programme(AMAP).We evaluated 464 individual chemicals mentioned in the AMAP report according to hazard profiles for POPs,very persistent and very bioaccumulative(vPvB)chemicals,and two novel and distinct hazard profiles we derived from the planetary boundary threat framework.The two planetary boundary threat profiles assign high priority to chemicals that will be mobile and poorly reversible environmental contaminants.Utilizing persistence as a proxy for poor reversibility,we defined two exposure-based hazard profiles;airborne persistent contaminants(APCs)and waterborne persistent contaminants(WPCs)that are potential planetary boundary threats.We used in silico estimates of physicochemical properties and multimedia models to calculate hazard metrics for persistence,bioaccumulation and long-range transport potential,then we synthesized this information into four exposure-based hazard scores of the potential of each AMAP chemical to fit each of the POP,vPvB,APC and WPC exposure-based hazard profiles.As an alternative to adopting a“bright line”score that represented cause for concern,we scored the AMAP chemicals by benchmarking against a reference set of 148 known and relatively well-studied contaminants and expressed their exposure-based hazard scores as percentile ranks against the scores of the reference set chemicals.Our results show that scores in the four exposure-based hazard profiles provide complementary information about the potential environmental exposure-based hazards of the AMAP chemicals.Our POP,vPvB,APC and WPC exposure-based hazard scores identify high priority chemicals for further study from among the AMAP contaminants.
