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一种可推广的 29-mRNA 神经网络分类器,用于急性细菌和病毒感染。

A generalizable 29-mRNA neural-network classifier for acute bacterial and viral infections.

机构信息

Inflammatix, Inc., 863 Mitten Rd, Suite 104, Burlingame, CA, 94010, USA.

Department of Medicine, Stanford University, Palo Alto, CA, 94305, USA.

出版信息

Nat Commun. 2020 Mar 4;11(1):1177. doi: 10.1038/s41467-020-14975-w.

DOI:10.1038/s41467-020-14975-w
PMID:32132525
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7055276/
Abstract

Improved identification of bacterial and viral infections would reduce morbidity from sepsis, reduce antibiotic overuse, and lower healthcare costs. Here, we develop a generalizable host-gene-expression-based classifier for acute bacterial and viral infections. We use training data (N = 1069) from 18 retrospective transcriptomic studies. Using only 29 preselected host mRNAs, we train a neural-network classifier with a bacterial-vs-other area under the receiver-operating characteristic curve (AUROC) 0.92 (95% CI 0.90-0.93) and a viral-vs-other AUROC 0.92 (95% CI 0.90-0.93). We then apply this classifier, inflammatix-bacterial-viral-noninfected-version 1 (IMX-BVN-1), without retraining, to an independent cohort (N = 163). In this cohort, IMX-BVN-1 AUROCs are: bacterial-vs.-other 0.86 (95% CI 0.77-0.93), and viral-vs.-other 0.85 (95% CI 0.76-0.93). In patients enrolled within 36 h of hospital admission (N = 70), IMX-BVN-1 AUROCs are: bacterial-vs.-other 0.92 (95% CI 0.83-0.99), and viral-vs.-other 0.91 (95% CI 0.82-0.98). With further study, IMX-BVN-1 could provide a tool for assessing patients with suspected infection and sepsis at hospital admission.

摘要

提高对细菌和病毒感染的识别能力,可降低脓毒症的发病率,减少抗生素的过度使用,并降低医疗保健成本。在这里,我们开发了一种基于宿主基因表达的通用分类器,用于急性细菌和病毒感染。我们使用来自 18 项回顾性转录组学研究的训练数据(N=1069)。仅使用 29 个预先选择的宿主 mRNA,我们使用神经网络分类器进行训练,细菌与其他分类的受试者工作特征曲线下面积(AUROC)为 0.92(95%CI 0.90-0.93),病毒与其他分类的 AUROC 为 0.92(95%CI 0.90-0.93)。然后,我们在没有重新训练的情况下,将这个分类器(inflammatix-bacterial-viral-noninfected-version 1,IMX-BVN-1)应用于一个独立的队列(N=163)。在这个队列中,IMX-BVN-1 的 AUROC 为:细菌与其他分类的 0.86(95%CI 0.77-0.93),病毒与其他分类的 0.85(95%CI 0.76-0.93)。在入院后 36 小时内入组的患者(N=70)中,IMX-BVN-1 的 AUROC 为:细菌与其他分类的 0.92(95%CI 0.83-0.99),病毒与其他分类的 0.91(95%CI 0.82-0.98)。通过进一步研究,IMX-BVN-1 可能成为评估疑似感染和入院时脓毒症患者的一种工具。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7e16/7055276/e4a19368f04f/41467_2020_14975_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7e16/7055276/3befd466e4d0/41467_2020_14975_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7e16/7055276/995dbe4c4ab2/41467_2020_14975_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7e16/7055276/e4a19368f04f/41467_2020_14975_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7e16/7055276/3befd466e4d0/41467_2020_14975_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7e16/7055276/995dbe4c4ab2/41467_2020_14975_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7e16/7055276/e4a19368f04f/41467_2020_14975_Fig3_HTML.jpg

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