背景:研究表明,核苷酸结合寡聚化结构域样受体蛋白3(nucleotide binding oligomerization domain like receptor protein 3,NLRP3)炎性小体、白细胞介素18和白细胞介素1β均可以通过诱发炎症级联反应释放炎症因子、影响代谢应激、损伤...背景:研究表明,核苷酸结合寡聚化结构域样受体蛋白3(nucleotide binding oligomerization domain like receptor protein 3,NLRP3)炎性小体、白细胞介素18和白细胞介素1β均可以通过诱发炎症级联反应释放炎症因子、影响代谢应激、损伤内皮细胞等参与糖尿病足溃疡的发生、发展,可以为早期感染提供参考。目的:进一步探讨外周血单核细胞NLRP3炎性小体、白细胞介素18和白细胞介素1β水平对糖尿病足溃疡皮瓣修复术后早期感染的预测价值。方法:选取糖尿病足溃疡患者147例,根据术后1周内发生感染的情况分为感染组与非感染组,Logistic回归分析外周血单核细胞NLRP3炎性小体、白细胞介素18和白细胞介素1β水平与术后早期感染的关系,并评估预测价值。结果与结论:①147例糖尿病足溃疡患者术后1周内发生感染35例(23.8%),分离致病菌47株,含革兰阳性菌25株(53.19%);革兰阴性菌22株(46.81%)。②单因素分析显示,Wagner分级、是否合并糖尿病肾病、手术时间、外周血NLRP3、Caspase-1及ASC的mRNA、白细胞介素18、白细胞介素1β水平均是影响术后早期感染的危险因素(均P<0.05)。③多因素分析提示,Wagner分级、NLRP3、Caspase-1及ASC的mRNA、高白细胞介素18、白细胞介素1β均是影响术后早期感染的独立危险因素(均P<0.05)。④ROC曲线结果显示,NLRP3、Caspase-1及ASC的mRNA、白细胞介素18、白细胞介素1β对糖尿病足溃疡患者术后早期感染的区分效能曲线下面积(AUC)分别为0.823,0.705,0.676,0.811和0.853,联合预测效能AUC为0.915。⑤结果说明,糖尿病足溃疡患者主要是受到革兰阳性菌的影响,且外周血单核细胞NLRP3炎性小体、白细胞介素18和白细胞介素1β水平是影响术后早期感染的独立危险因素,上述指标的联合预测效能更优,值得进一步深入研究。展开更多
目的总结虚拟现实技术用于缓和医疗的基本内容,分析其应用效果和现存问题,为进一步规范和优化虚拟现实技术的应用提供依据。方法系统检索PubMed、Embase、CINAHL、Web of Science、Cochrane Library、中国知网、万方数据、维普网、中国...目的总结虚拟现实技术用于缓和医疗的基本内容,分析其应用效果和现存问题,为进一步规范和优化虚拟现实技术的应用提供依据。方法系统检索PubMed、Embase、CINAHL、Web of Science、Cochrane Library、中国知网、万方数据、维普网、中国生物医学文献数据库中的相关研究。检索时间为建库至2023年2月18日,由2名研究人员独立筛选并提取资料。结果共纳入16篇文献。虚拟现实技术干预主要内容要素为个性化视频课程、自然风景视频、特制生命回顾课程的沉浸式和非沉浸式体验,干预的有效性和可行性已得到初步证实。结论虚拟现实技术在缓和医疗中的应用处于起步阶段,具有使用前景。未来仍需要开展大样本、高质量的随机对照试验来验证虚拟现实技术在缓和医疗中的应用效果,为制定最佳虚拟现实技术干预方案提供循证依据。展开更多
The importance of developing high-resolution seismic models to improve understanding of tectonic processes and enhance seismic hazard mitigation programs,along with the rapid expansion of seismic coverage in China,cal...The importance of developing high-resolution seismic models to improve understanding of tectonic processes and enhance seismic hazard mitigation programs,along with the rapid expansion of seismic coverage in China,called for a seismological reference model to be established in China.The China Seismological Reference Model(CSRM)project was initiated by the National Natural Science Foundation of China with two primary goals:(1)the CSRM would serve as a primary source for the current state of seismological research in China,and(2)the seismic data and constraints used to construct the CSRM would be used as a backbone open-access cyberinfrastructure for future research in seismology.The CSRM project was also intended to promote data exchange and scientific collaboration in seismology in China.Accordingly,two parallel efforts of the project are being pursued:(1)construction of the CSRM,and(2)development of a CSRM product center.The CSRM is jointly constrained by various types of seismic constraints extracted from the seismic data recorded at 4511 seismic stations in continental China following a top-down approach,with the seismic structures in the shallower part of the Earth constrained first.Construction of the CSRM involves three preparation steps:(1)building datasets of various seismic constraints from the seismic data,(2)developing a method to incorporate the constraints of surface wave observations from regional earthquakes into the inversion of the seismic structure,and(3)constructing high-resolution pre-CSRM seismic models of the velocity structure in the shallow crust and the Pn-velocity structure in the uppermost mantle.In the final process,the CSRM will be constructed by jointly inverting all the seismic constraints using the pre-CSRM models as starting models or a priori structures.The CSRM product center(http://chinageorefmodel.org)archives and distributes three types of products:CSRM models,the Level 1 original seismic data used to extract seismic constraints in the construction of the CSRM,and Level 2 data on the seismic constraints derived from the Level 1 data and the inferred earthquake parameters in the construction of the CSRM.The CSRM product center has archived 141 TB of Level 1 data from 1120 permanent broadband stations in the China Seismic Network Center and 3391 temporary stations from various institutions and data centers around the world,as well as 140 GB of Level 2 data on various seismic constraints and inferred event parameters from the construction of the CSRM.The CSRM is expected to provide significant insights into the composition and tectonic dynamics in continental China and to enhance the capability of various seismic hazard mitigation programs in China from near real-time rapid determination of earthquake parameters to an earthquake early warning system.The CSRM could also provide guidance for focuses in future seismological research and the design of future active and passive seismic experiments in China.Several focuses are suggested for future seismological research in China,along with the building of a national cyberinfrastructure to sustain and expand the operations of the CSRM project.展开更多
基金supported by National Natural Science Foundation of China,China(No.52101138)Natural Science Foundation of Hubei Province,China(No.2020CFB259)+7 种基金Shenzhen Science and Technology Program,China(No.JCYJ20220530160813032)State Key Lab of Advanced Metals and Materials,China(No.2020-Z01)State Key Laboratory for Mechanical Behavior of Materials,China(No.20202205)Guangdong Basic and Applied Basic Research Foundation,China(Nos.2020A1515110531,2021A1515111122)State Key Laboratory of Materials Processing and Die&Mold Technology,Huazhong University of Science and Technology,China(No.P2021-021)support from the National Natural Science Foundation of China(No.12004294)National Youth Talents Programsupport by Center for Alloy Innovation and Design(CAID)and HPC platform of Xi’an Jiaotong University。
文摘背景:研究表明,核苷酸结合寡聚化结构域样受体蛋白3(nucleotide binding oligomerization domain like receptor protein 3,NLRP3)炎性小体、白细胞介素18和白细胞介素1β均可以通过诱发炎症级联反应释放炎症因子、影响代谢应激、损伤内皮细胞等参与糖尿病足溃疡的发生、发展,可以为早期感染提供参考。目的:进一步探讨外周血单核细胞NLRP3炎性小体、白细胞介素18和白细胞介素1β水平对糖尿病足溃疡皮瓣修复术后早期感染的预测价值。方法:选取糖尿病足溃疡患者147例,根据术后1周内发生感染的情况分为感染组与非感染组,Logistic回归分析外周血单核细胞NLRP3炎性小体、白细胞介素18和白细胞介素1β水平与术后早期感染的关系,并评估预测价值。结果与结论:①147例糖尿病足溃疡患者术后1周内发生感染35例(23.8%),分离致病菌47株,含革兰阳性菌25株(53.19%);革兰阴性菌22株(46.81%)。②单因素分析显示,Wagner分级、是否合并糖尿病肾病、手术时间、外周血NLRP3、Caspase-1及ASC的mRNA、白细胞介素18、白细胞介素1β水平均是影响术后早期感染的危险因素(均P<0.05)。③多因素分析提示,Wagner分级、NLRP3、Caspase-1及ASC的mRNA、高白细胞介素18、白细胞介素1β均是影响术后早期感染的独立危险因素(均P<0.05)。④ROC曲线结果显示,NLRP3、Caspase-1及ASC的mRNA、白细胞介素18、白细胞介素1β对糖尿病足溃疡患者术后早期感染的区分效能曲线下面积(AUC)分别为0.823,0.705,0.676,0.811和0.853,联合预测效能AUC为0.915。⑤结果说明,糖尿病足溃疡患者主要是受到革兰阳性菌的影响,且外周血单核细胞NLRP3炎性小体、白细胞介素18和白细胞介素1β水平是影响术后早期感染的独立危险因素,上述指标的联合预测效能更优,值得进一步深入研究。
文摘目的总结虚拟现实技术用于缓和医疗的基本内容,分析其应用效果和现存问题,为进一步规范和优化虚拟现实技术的应用提供依据。方法系统检索PubMed、Embase、CINAHL、Web of Science、Cochrane Library、中国知网、万方数据、维普网、中国生物医学文献数据库中的相关研究。检索时间为建库至2023年2月18日,由2名研究人员独立筛选并提取资料。结果共纳入16篇文献。虚拟现实技术干预主要内容要素为个性化视频课程、自然风景视频、特制生命回顾课程的沉浸式和非沉浸式体验,干预的有效性和可行性已得到初步证实。结论虚拟现实技术在缓和医疗中的应用处于起步阶段,具有使用前景。未来仍需要开展大样本、高质量的随机对照试验来验证虚拟现实技术在缓和医疗中的应用效果,为制定最佳虚拟现实技术干预方案提供循证依据。
基金the NSFC has funded 40 research grants for studying the seismic structure beneath continental China, including a grant NSFC42250201 focusing on the CSRM project
文摘The importance of developing high-resolution seismic models to improve understanding of tectonic processes and enhance seismic hazard mitigation programs,along with the rapid expansion of seismic coverage in China,called for a seismological reference model to be established in China.The China Seismological Reference Model(CSRM)project was initiated by the National Natural Science Foundation of China with two primary goals:(1)the CSRM would serve as a primary source for the current state of seismological research in China,and(2)the seismic data and constraints used to construct the CSRM would be used as a backbone open-access cyberinfrastructure for future research in seismology.The CSRM project was also intended to promote data exchange and scientific collaboration in seismology in China.Accordingly,two parallel efforts of the project are being pursued:(1)construction of the CSRM,and(2)development of a CSRM product center.The CSRM is jointly constrained by various types of seismic constraints extracted from the seismic data recorded at 4511 seismic stations in continental China following a top-down approach,with the seismic structures in the shallower part of the Earth constrained first.Construction of the CSRM involves three preparation steps:(1)building datasets of various seismic constraints from the seismic data,(2)developing a method to incorporate the constraints of surface wave observations from regional earthquakes into the inversion of the seismic structure,and(3)constructing high-resolution pre-CSRM seismic models of the velocity structure in the shallow crust and the Pn-velocity structure in the uppermost mantle.In the final process,the CSRM will be constructed by jointly inverting all the seismic constraints using the pre-CSRM models as starting models or a priori structures.The CSRM product center(http://chinageorefmodel.org)archives and distributes three types of products:CSRM models,the Level 1 original seismic data used to extract seismic constraints in the construction of the CSRM,and Level 2 data on the seismic constraints derived from the Level 1 data and the inferred earthquake parameters in the construction of the CSRM.The CSRM product center has archived 141 TB of Level 1 data from 1120 permanent broadband stations in the China Seismic Network Center and 3391 temporary stations from various institutions and data centers around the world,as well as 140 GB of Level 2 data on various seismic constraints and inferred event parameters from the construction of the CSRM.The CSRM is expected to provide significant insights into the composition and tectonic dynamics in continental China and to enhance the capability of various seismic hazard mitigation programs in China from near real-time rapid determination of earthquake parameters to an earthquake early warning system.The CSRM could also provide guidance for focuses in future seismological research and the design of future active and passive seismic experiments in China.Several focuses are suggested for future seismological research in China,along with the building of a national cyberinfrastructure to sustain and expand the operations of the CSRM project.
