ROC, Receiver operating characteristic

ROC,接收机工作特性
  • 文章类型: Journal Article
    翻译后修饰(PTM)与许多疾病密切相关。在调节蛋白质结构方面发挥着重要作用,活动,和功能。因此,PTM的鉴定对于理解细胞生物学和疾病治疗的机制至关重要。与传统的机器学习方法相比,PTM预测的深度学习方法提供了准确、快速的筛查,指导下游湿实验,利用筛选的信息进行重点研究。在本文中,我们回顾了深度学习识别磷酸化的最新工作,乙酰化,泛素化,和其他PTM类型。此外,我们总结了PTM数据库,并讨论了未来的发展方向。
    Post-translational modifications (PTMs) are closely linked to numerous diseases, playing a significant role in regulating protein structures, activities, and functions. Therefore, the identification of PTMs is crucial for understanding the mechanisms of cell biology and diseases therapy. Compared to traditional machine learning methods, the deep learning approaches for PTM prediction provide accurate and rapid screening, guiding the downstream wet experiments to leverage the screened information for focused studies. In this paper, we reviewed the recent works in deep learning to identify phosphorylation, acetylation, ubiquitination, and other PTM types. In addition, we summarized PTM databases and discussed future directions with critical insights.
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  • 文章类型: Journal Article
    目的:评估聚焦超声心动图的个体使用和预测价值,潮气末二氧化碳(EtCO2),儿童心肺复苏(CPR)期间的有创动脉血压(BP)和近红外光谱(NIRS)。
    方法:本范围审查是作为国际复苏联络委员会(ILCOR)持续证据评估过程的一部分,并基于系统审查和荟萃分析(PRISMA)范围审查的首选报告项目。PubMed,MEDLINE,从最新的ILCOR评论中搜索CINAHL和EMBASE,直到2020年9月。我们纳入了所有发表的评估超声心动图效果的研究,EtCO2,BP或NIRS指导CPR对临床结果和CPR质量的影响。
    结果:我们确定了8项观察性研究,包括288名儿童。两个病例系列报告了超声心动图的使用,一个是检测肺栓塞,第二个心脏停滞,使用体外膜氧合可以恢复收缩力。描述EtCO2的两项研究在平均值与任何结果之间的关联方面存在矛盾。平均舒张压与生存率增加和良好的神经系统预后相关。但在两项描述重叠人群的研究中没有新的实质性发病率。NIRS值反映了两项研究中EtCO2和脑血容量指数的变化,在未实现循环恢复的患者中,该值较低。
    结论:尽管这些停滞内变量似乎有一些有益的影响,需要更高质量的儿科研究来评估超声心动图,EtCO2,BP或NIRS指导的CPR可以改善结果。
    OBJECTIVE: To evaluate the individual use and predictive value of focused echocardiography, end-tidal carbon dioxide (EtCO2), invasive arterial blood pressure (BP) and near-infrared spectroscopy (NIRS) during cardiopulmonary resuscitation (CPR) in children.
    METHODS: This scoping review was undertaken as part of the continuous evidence evaluation process of the International Liaison Committee on Resuscitation (ILCOR) and based on the Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA) extension for scoping reviews. PubMed, MEDLINE, CINAHL and EMBASE were searched from the last ILCOR reviews until September 2020. We included all published studies evaluating the effect of echocardiography, EtCO2, BP or NIRS guided CPR on clinical outcomes and quality of CPR.
    RESULTS: We identified eight observational studies, including 288 children. Two case series reported the use of echocardiography, one in detecting pulmonary emboli, the second in cardiac standstill, where contractility was regained with the use of extracorporeal membrane oxygenation. The two studies describing EtCO2 were ambivalent regarding the association between mean values and any outcomes. Mean diastolic BP was associated with increased survival and favourable neurological outcome, but not with new substantive morbidity in two studies describing an overlapping population. NIRS values reflected changes in EtCO2 and cerebral blood volume index in two studies, with lower values in patients who did not achieve return of circulation.
    CONCLUSIONS: Although there seems some beneficial effect of these intra-arrest variables, higher quality paediatric studies are needed to evaluate whether echocardiography, EtCO2, BP or NIRS guided CPR could improve outcomes.
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  • 文章类型: Journal Article
    OBJECTIVE: Several studies have been conducted on the accuracy of simplified criteria for autoimmune hepatitis that were presented in 2008 as an alternative to original criteria. Our purpose is to summarize the evidence available regarding their accuracy in children and to carry out a basic clinical decision analysis based on it.
    METHODS: Electronic and manual searches were performed with keywords related to diagnostic validity terms. Data from included studies were extracted, and summary estimates of accuracy measures were calculated. An effect model was chosen depending on heterogeneity, and the presence of publication bias was also studied. Therapeutic threshold was calculated based on the already published data. Through a Bayesian approach, simplified criteria\'s clinical utility was simulated, taking into account the meta-analyzed indicators and several assumptions on the prevalence of autoimmune hepatitis.
    RESULTS: The search yielded 166 studies, four of which were finally included, providing a total population of 437 patients. Pooled sensitivity and specificity of the simplified criteria for the diagnosis of autoimmune hepatitis in children was 77% and 95%, respectively, with a diagnostic odds ratio of 67. No evidence of publication bias was found. For prevalences ranging from 8.5 to 85.7, the predictive value of either a positive or a negative result moved beyond the therapeutic threshold (estimated at 56%).
    CONCLUSIONS: The simplified criteria show high specificity and moderate sensitivity for the diagnosis of autoimmune hepatitis in children. A positive result can justify starting a therapeutic assay, but a negative result does not seem sufficient to rule out this condition.
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