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Correction: Confounding of linkage disequilibrium patterns in large scale DNA based gene-gene interaction studies 更正:在大规模的基于DNA的基因-基因相互作用研究中,连锁不平衡模式的混淆
IF 4.5 3区 生物学 Q1 MATHEMATICAL & COMPUTATIONAL BIOLOGY Pub Date : 2022-04-11 DOI: 10.1186/s13040-022-00296-9
Marc Joiret, J. M. John, Elena S. Gusareva, K. Steen
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引用次数: 0
DIVIS: a semantic DIstance to improve the VISualisation of heterogeneous phenotypic datasets DIVIS:一种改进异构表型数据集可视化的语义DIVIS
IF 4.5 3区 生物学 Q1 MATHEMATICAL & COMPUTATIONAL BIOLOGY Pub Date : 2022-04-04 DOI: 10.1186/s13040-022-00293-y
Rayan Eid, C. Landès, A. Pernet, E. Benoît, Pierre Santagostini, Angelina El Ghaziri, Julie Bourbeillon
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引用次数: 1
Predicting molecular initiating events using chemical target annotations and gene expression 利用化学靶标注释和基因表达预测分子起始事件
IF 4.5 3区 生物学 Q1 MATHEMATICAL & COMPUTATIONAL BIOLOGY Pub Date : 2022-03-04 DOI: 10.1186/s13040-022-00292-z
Bundy, Joseph L., Judson, Richard, Williams, Antony J., Grulke, Chris, Shah, Imran, Everett, Logan J.
The advent of high-throughput transcriptomic screening technologies has resulted in a wealth of publicly available gene expression data associated with chemical treatments. From a regulatory perspective, data sets that cover a large chemical space and contain reference chemicals offer utility for the prediction of molecular initiating events associated with chemical exposure. Here, we integrate data from a large compendium of transcriptomic responses to chemical exposure with a comprehensive database of chemical-protein associations to train binary classifiers that predict mechanism(s) of action from transcriptomic responses. First, we linked reference chemicals present in the LINCS L1000 gene expression data collection to chemical identifiers in RefChemDB, a database of chemical-protein interactions. Next, we trained binary classifiers on MCF7 human breast cancer cell line derived gene expression profiles and chemical-protein labels using six classification algorithms to identify optimal analysis parameters. To validate classifier accuracy, we used holdout data sets, training-excluded reference chemicals, and empirical significance testing of null models derived from permuted chemical-protein associations. To identify classifiers that have variable predicting performance across training data derived from different cellular contexts, we trained a separate set of binary classifiers on the PC3 human prostate cancer cell line. We trained classifiers using expression data associated with chemical treatments linked to 51 molecular initiating events. This analysis identified and validated 9 high-performing classifiers with empirical p-values lower than 0.05 and internal accuracies ranging from 0.73 to 0.94 and holdout accuracies of 0.68 to 0.92. High-ranking predictions for training-excluded reference chemicals demonstrating that predictive accuracy extends beyond the set of chemicals used in classifier training. To explore differences in classifier performance as a function of training data cellular context, MCF7-trained classifier accuracies were compared to classifiers trained on the PC3 gene expression data for the same molecular initiating events. This methodology can offer insight in prioritizing candidate perturbagens of interest for targeted screens. This approach can also help guide the selection of relevant cellular contexts for screening classes of candidate perturbagens using cell line specific model performance.
高通量转录组筛选技术的出现导致了大量与化学治疗相关的公开可用的基因表达数据。从监管的角度来看,涵盖大量化学空间并包含参考化学物质的数据集为预测与化学暴露相关的分子起始事件提供了实用工具。在这里,我们将来自化学暴露的转录组反应的大型汇编数据与化学-蛋白质关联的综合数据库相结合,以训练二元分类器,预测转录组反应的作用机制。首先,我们将LINCS L1000基因表达数据收集中的参考化学物质与RefChemDB(化学-蛋白质相互作用数据库)中的化学标识符联系起来。接下来,我们使用六种分类算法对MCF7人类乳腺癌细胞系衍生的基因表达谱和化学蛋白标签进行二元分类器训练,以确定最佳分析参数。为了验证分类器的准确性,我们使用了保留数据集,排除了训练的参考化学物质,并对来自排列化学-蛋白质关联的零模型进行了经验显著性检验。为了识别在来自不同细胞背景的训练数据中具有可变预测性能的分类器,我们在PC3人类前列腺癌细胞系上训练了一组单独的二元分类器。我们使用与51个分子起始事件相关的化学处理相关的表达数据来训练分类器。该分析鉴定并验证了9个高性能分类器,经验p值低于0.05,内部精度范围为0.73至0.94,持位精度范围为0.68至0.92。对排除训练的参考化学物质的高级预测表明,预测的准确性超出了分类器训练中使用的化学物质集。为了探索分类器性能作为训练数据细胞背景的差异,我们比较了mcf7训练的分类器与PC3基因表达数据训练的分类器在相同分子启动事件下的准确率。这种方法可以提供对目标筛选感兴趣的候选扰动原进行优先排序的见解。这种方法还可以帮助指导选择相关的细胞背景,使用细胞系特定模型性能筛选候选扰动原的类别。
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引用次数: 4
PredictPTB: an interpretable preterm birth prediction model using attention-based recurrent neural networks. PredictPTB:一个可解释的早产预测模型,使用基于注意的递归神经网络。
IF 4.5 3区 生物学 Q1 MATHEMATICAL & COMPUTATIONAL BIOLOGY Pub Date : 2022-02-14 DOI: 10.1186/s13040-022-00289-8
Rawan AlSaad, Qutaibah Malluhi, Sabri Boughorbel

Background: Early identification of pregnant women at risk for preterm birth (PTB), a major cause of infant mortality and morbidity, has a significant potential to improve prenatal care. However, we lack effective predictive models which can accurately forecast PTB and complement these predictions with appropriate interpretations for clinicians. In this work, we introduce a clinical prediction model (PredictPTB) which combines variables (medical codes) readily accessible through electronic health record (EHR) to accurately predict the risk of preterm birth at 1, 3, 6, and 9 months prior to delivery.

Methods: The architecture of PredictPTB employs recurrent neural networks (RNNs) to model the longitudinal patient's EHR visits and exploits a single code-level attention mechanism to improve the predictive performance, while providing temporal code-level and visit-level explanations for the prediction results. We compare the performance of different combinations of prediction time-points, data modalities, and data windows. We also present a case-study of our model's interpretability illustrating how clinicians can gain some transparency into the predictions.

Results: Leveraging a large cohort of 222,436 deliveries, comprising a total of 27,100 unique clinical concepts, our model was able to predict preterm birth with an ROC-AUC of 0.82, 0.79, 0.78, and PR-AUC of 0.40, 0.31, 0.24, at 1, 3, and 6 months prior to delivery, respectively. Results also confirm that observational data modalities (such as diagnoses) are more predictive for preterm birth than interventional data modalities (e.g., medications and procedures).

Conclusions: Our results demonstrate that PredictPTB can be utilized to achieve accurate and scalable predictions for preterm birth, complemented by explanations that directly highlight evidence in the patient's EHR timeline.

背景:早期识别有早产风险的孕妇(PTB)是婴儿死亡和发病的主要原因,具有改善产前护理的重大潜力。然而,我们缺乏有效的预测模型来准确预测肺结核,并为临床医生提供适当的解释。在这项工作中,我们引入了一个临床预测模型(PredictPTB),该模型结合了可通过电子健康记录(EHR)轻松获取的变量(医疗代码),以准确预测分娩前1、3、6和9个月的早产风险。方法:PredictPTB的体系结构采用递归神经网络(rnn)对纵向患者的电子病历就诊进行建模,利用单码级关注机制提高预测性能,同时为预测结果提供时间码级和访问级的解释。我们比较了预测时间点、数据模式和数据窗口的不同组合的性能。我们还提出了一个案例研究,说明我们的模型的可解释性,说明临床医生如何获得一些透明度的预测。结果:利用222,436例分娩的大队列,包括总共27,100个独特的临床概念,我们的模型能够预测早产,在分娩前1、3和6个月的ROC-AUC分别为0.82、0.79、0.78,PR-AUC分别为0.40、0.31、0.24。结果还证实,观察数据模式(如诊断)比介入性数据模式(如药物和程序)更能预测早产。结论:我们的研究结果表明,PredictPTB可以用于实现对早产的准确和可扩展的预测,并辅以直接突出患者EHR时间表证据的解释。
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引用次数: 3
eQTpLot: a user-friendly R package for the visualization of colocalization between eQTL and GWAS signals. eQTpLot:一个用户友好的 R 软件包,用于可视化 eQTL 和 GWAS 信号之间的共定位。
IF 4.5 3区 生物学 Q1 MATHEMATICAL & COMPUTATIONAL BIOLOGY Pub Date : 2021-07-17 DOI: 10.1186/s13040-021-00267-6
Theodore G Drivas, Anastasia Lucas, Marylyn D Ritchie

Background: Genomic studies increasingly integrate expression quantitative trait loci (eQTL) information into their analysis pipelines, but few tools exist for the visualization of colocalization between eQTL and GWAS results. Those tools that do exist are limited in their analysis options, and do not integrate eQTL and GWAS information into a single figure panel, making the visualization of colocalization difficult.

Results: To address this issue, we developed the intuitive and user-friendly R package eQTpLot. eQTpLot takes as input standard GWAS and cis-eQTL summary statistics, and optional pairwise LD information, to generate a series of plots visualizing colocalization, correlation, and enrichment between eQTL and GWAS signals for a given gene-trait pair. With eQTpLot, investigators can easily generate a series of customizable plots clearly illustrating, for a given gene-trait pair: 1) colocalization between GWAS and eQTL signals, 2) correlation between GWAS and eQTL p-values, 3) enrichment of eQTLs among trait-significant variants, 4) the LD landscape of the locus in question, and 5) the relationship between the direction of effect of eQTL signals and the direction of effect of colocalizing GWAS peaks. These clear and comprehensive plots provide a unique view of eQTL-GWAS colocalization, allowing for a more complete understanding of the interaction between gene expression and trait associations.

Conclusions: eQTpLot provides a unique, user-friendly, and intuitive means of visualizing eQTL and GWAS signal colocalization, incorporating novel features not found in other eQTL visualization software. We believe eQTpLot will prove a useful tool for investigators seeking a convenient and customizable visualization of eQTL and GWAS data colocalization.

Availability and implementation: the eQTpLot R package and tutorial are available at https://github.com/RitchieLab/eQTpLot.

背景:基因组研究越来越多地将表达定量性状位点(eQTL)信息整合到其分析管道中,但很少有工具可用于可视化eQTL与GWAS结果之间的共定位。现有工具的分析选项有限,而且没有将 eQTL 和 GWAS 信息整合到一个图板中,因此难以实现共定位的可视化:eQTpLot 将标准的 GWAS 和顺式 eQTL 统计摘要以及可选的成对 LD 信息作为输入,生成一系列图表,直观显示给定基因-性状对的 eQTL 和 GWAS 信号之间的共定位、相关性和富集性。利用 eQTpLot,研究人员可以轻松生成一系列可定制的图谱,清楚地说明给定基因-性状对的情况:1)GWAS 和 eQTL 信号之间的共定位;2)GWAS 和 eQTL p 值之间的相关性;3)eQTL 在性状显著变异中的富集;4)相关位点的 LD 景观;5)eQTL 信号的效应方向与共定位 GWAS 峰效应方向之间的关系。结论:eQTpLot 提供了一种独特的、用户友好的、直观的方法来可视化 eQTL 和 GWAS 信号的共定位,并结合了其他 eQTL 可视化软件所没有的新功能。我们相信,eQTpLot 将成为研究人员寻求方便、可定制的 eQTL 和 GWAS 数据共定位可视化的有用工具。可用性和实施:eQTpLot R 软件包和教程可从 https://github.com/RitchieLab/eQTpLot 获取。
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引用次数: 0
Genetic risk score for ovarian cancer based on chromosomal-scale length variation. 基于染色体尺度长度变异的卵巢癌遗传风险评分。
IF 4.5 3区 生物学 Q1 MATHEMATICAL & COMPUTATIONAL BIOLOGY Pub Date : 2021-03-09 DOI: 10.1186/s13040-021-00253-y
Christopher Toh, James P Brody

Introduction: Twin studies indicate that a substantial fraction of ovarian cancers should be predictable from genetic testing. Genetic risk scores can stratify women into different classes of risk. Higher risk women can be treated or screened for ovarian cancer, which should reduce ovarian cancer death rates. However, current ovarian cancer genetic risk scores do not work that well. We developed a genetic risk score based on variations in the length of chromosomes.

Methods: We evaluated this genetic risk score using data collected by The Cancer Genome Atlas. We synthesized a dataset of 414 women who had ovarian serous carcinoma and 4225 women who had no form of ovarian cancer. We characterized each woman by 22 numbers, representing the length of each chromosome in their germ line DNA. We used a gradient boosting machine to build a classifier that can predict whether a woman had been diagnosed with ovarian cancer.

Results: The genetic risk score based on chromosomal-scale length variation could stratify women such that the highest 20% had a 160x risk (95% confidence interval 50x-450x) compared to the lowest 20%. The genetic risk score we developed had an area under the curve of the receiver operating characteristic curve of 0.88 (95% confidence interval 0.86-0.91).

Conclusion: A genetic risk score based on chromosomal-scale length variation of germ line DNA provides an effective means of predicting whether or not a woman will develop ovarian cancer.

双胞胎研究表明,很大一部分卵巢癌可以通过基因检测来预测。遗传风险评分可以将女性分为不同的风险等级。高风险妇女可以接受卵巢癌治疗或筛查,这应该会降低卵巢癌死亡率。然而,目前的卵巢癌遗传风险评分并不那么有效。我们开发了一种基于染色体长度变化的遗传风险评分。方法:我们使用癌症基因组图谱收集的数据评估这种遗传风险评分。我们合成了414名患有卵巢浆液性癌的女性和4225名没有卵巢癌的女性的数据集。我们用22个数字来描述每个女性,代表她们生殖系DNA中每条染色体的长度。我们使用梯度增强机建立了一个分类器,可以预测女性是否被诊断患有卵巢癌。结果:基于染色体尺度长度变异的遗传风险评分可以对女性进行分层,使最高20%的女性与最低20%的女性相比具有160倍的风险(95%置信区间为50 -450倍)。我们开发的遗传风险评分在受试者工作特征曲线曲线下的面积为0.88(95%置信区间为0.86-0.91)。结论:基于生殖系DNA染色体尺度长度变异的遗传风险评分提供了预测女性是否会患卵巢癌的有效手段。
{"title":"Genetic risk score for ovarian cancer based on chromosomal-scale length variation.","authors":"Christopher Toh,&nbsp;James P Brody","doi":"10.1186/s13040-021-00253-y","DOIUrl":"https://doi.org/10.1186/s13040-021-00253-y","url":null,"abstract":"<p><strong>Introduction: </strong>Twin studies indicate that a substantial fraction of ovarian cancers should be predictable from genetic testing. Genetic risk scores can stratify women into different classes of risk. Higher risk women can be treated or screened for ovarian cancer, which should reduce ovarian cancer death rates. However, current ovarian cancer genetic risk scores do not work that well. We developed a genetic risk score based on variations in the length of chromosomes.</p><p><strong>Methods: </strong>We evaluated this genetic risk score using data collected by The Cancer Genome Atlas. We synthesized a dataset of 414 women who had ovarian serous carcinoma and 4225 women who had no form of ovarian cancer. We characterized each woman by 22 numbers, representing the length of each chromosome in their germ line DNA. We used a gradient boosting machine to build a classifier that can predict whether a woman had been diagnosed with ovarian cancer.</p><p><strong>Results: </strong>The genetic risk score based on chromosomal-scale length variation could stratify women such that the highest 20% had a 160x risk (95% confidence interval 50x-450x) compared to the lowest 20%. The genetic risk score we developed had an area under the curve of the receiver operating characteristic curve of 0.88 (95% confidence interval 0.86-0.91).</p><p><strong>Conclusion: </strong>A genetic risk score based on chromosomal-scale length variation of germ line DNA provides an effective means of predicting whether or not a woman will develop ovarian cancer.</p>","PeriodicalId":48947,"journal":{"name":"Biodata Mining","volume":"14 1","pages":"18"},"PeriodicalIF":4.5,"publicationDate":"2021-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1186/s13040-021-00253-y","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10296492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Comparative analysis, applications, and interpretation of electronic health record-based stroke phenotyping methods. 基于电子健康记录的中风表型方法的比较分析、应用和解释。
IF 4.5 3区 生物学 Q1 MATHEMATICAL & COMPUTATIONAL BIOLOGY Pub Date : 2020-12-07 DOI: 10.1186/s13040-020-00230-x
Phyllis M Thangaraj, Benjamin R Kummer, Tal Lorberbaum, Mitchell S V Elkind, Nicholas P Tatonetti

Background: Accurate identification of acute ischemic stroke (AIS) patient cohorts is essential for a wide range of clinical investigations. Automated phenotyping methods that leverage electronic health records (EHRs) represent a fundamentally new approach cohort identification without current laborious and ungeneralizable generation of phenotyping algorithms. We systematically compared and evaluated the ability of machine learning algorithms and case-control combinations to phenotype acute ischemic stroke patients using data from an EHR.

Materials and methods: Using structured patient data from the EHR at a tertiary-care hospital system, we built and evaluated machine learning models to identify patients with AIS based on 75 different case-control and classifier combinations. We then estimated the prevalence of AIS patients across the EHR. Finally, we externally validated the ability of the models to detect AIS patients without AIS diagnosis codes using the UK Biobank.

Results: Across all models, we found that the mean AUROC for detecting AIS was 0.963 ± 0.0520 and average precision score 0.790 ± 0.196 with minimal feature processing. Classifiers trained with cases with AIS diagnosis codes and controls with no cerebrovascular disease codes had the best average F1 score (0.832 ± 0.0383). In the external validation, we found that the top probabilities from a model-predicted AIS cohort were significantly enriched for AIS patients without AIS diagnosis codes (60-150 fold over expected).

Conclusions: Our findings support machine learning algorithms as a generalizable way to accurately identify AIS patients without using process-intensive manual feature curation. When a set of AIS patients is unavailable, diagnosis codes may be used to train classifier models.

背景:准确识别急性缺血性脑卒中(AIS)患者队列对各种临床研究至关重要。利用电子健康记录(EHR)的自动表型方法是一种全新的队列识别方法,而无需目前费力且无法通用的表型算法。我们系统地比较和评估了机器学习算法和病例对照组合使用电子病历数据对急性缺血性中风患者进行表型的能力:利用一家三级医院系统的电子病历中的结构化患者数据,我们建立并评估了机器学习模型,该模型基于 75 种不同的病例对照和分类器组合来识别急性缺血性卒中患者。然后,我们估算了 EHR 中 AIS 患者的患病率。最后,我们利用英国生物库从外部验证了这些模型检测无 AIS 诊断代码的 AIS 患者的能力:结果:我们发现,在所有模型中,检测 AIS 的平均 AUROC 为 0.963 ± 0.0520,平均精确度为 0.790 ± 0.196,特征处理最小。用带有 AIS 诊断代码的病例和没有脑血管疾病代码的对照组训练的分类器平均 F1 得分最高(0.832 ± 0.0383)。在外部验证中,我们发现模型预测的 AIS 队列的最高概率显著提高了无 AIS 诊断代码的 AIS 患者的概率(比预期高出 60-150 倍):我们的研究结果支持将机器学习算法作为一种通用方法,在不使用过程密集型人工特征整理的情况下准确识别 AIS 患者。当没有一组 AIS 患者时,诊断代码可用于训练分类器模型。
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引用次数: 0
ISLAND: in-silico proteins binding affinity prediction using sequence information. ISLAND:利用序列信息预测蛋白质结合亲和力。
IF 4.5 3区 生物学 Q1 MATHEMATICAL & COMPUTATIONAL BIOLOGY Pub Date : 2020-11-25 DOI: 10.1186/s13040-020-00231-w
Wajid Arshad Abbasi, Adiba Yaseen, Fahad Ul Hassan, Saiqa Andleeb, Fayyaz Ul Amir Afsar Minhas

Background: Determining binding affinity in protein-protein interactions is important in the discovery and design of novel therapeutics and mutagenesis studies. Determination of binding affinity of proteins in the formation of protein complexes requires sophisticated, expensive and time-consuming experimentation which can be replaced with computational methods. Most computational prediction techniques require protein structures that limit their applicability to protein complexes with known structures. In this work, we explore sequence-based protein binding affinity prediction using machine learning.

Method: We have used protein sequence information instead of protein structures along with machine learning techniques to accurately predict the protein binding affinity.

Results: We present our findings that the true generalization performance of even the state-of-the-art sequence-only predictor is far from satisfactory and that the development of machine learning methods for binding affinity prediction with improved generalization performance is still an open problem. We have also proposed a sequence-based novel protein binding affinity predictor called ISLAND which gives better accuracy than existing methods over the same validation set as well as on external independent test dataset. A cloud-based webserver implementation of ISLAND and its python code are available at https://sites.google.com/view/wajidarshad/software .

Conclusion: This paper highlights the fact that the true generalization performance of even the state-of-the-art sequence-only predictor of binding affinity is far from satisfactory and that the development of effective and practical methods in this domain is still an open problem.

背景:确定蛋白-蛋白相互作用中的结合亲和力对于发现和设计新的治疗方法和诱变研究非常重要。在蛋白质复合物形成过程中测定蛋白质的结合亲和力需要复杂、昂贵和耗时的实验,而这些实验可以用计算方法代替。大多数计算预测技术需要蛋白质结构,这限制了它们对已知结构的蛋白质复合物的适用性。在这项工作中,我们探索了使用机器学习的基于序列的蛋白质结合亲和力预测。方法:利用蛋白质序列信息代替蛋白质结构,结合机器学习技术准确预测蛋白质结合亲和力。结果:我们提出了我们的研究结果,即使是最先进的序列预测器的真正泛化性能也远远不能令人满意,并且开发具有改进泛化性能的绑定亲和预测的机器学习方法仍然是一个开放的问题。我们还提出了一种基于序列的新型蛋白质结合亲和预测器,称为ISLAND,它在相同验证集以及外部独立测试数据集上比现有方法具有更好的准确性。结论:本文强调了这样一个事实,即即使是最先进的仅序列的绑定亲和预测器的真正泛化性能也远远不能令人满意,并且在该领域开发有效和实用的方法仍然是一个开放的问题。
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引用次数: 1
Exploring active ingredients and function mechanisms of Ephedra-bitter almond for prevention and treatment of Corona virus disease 2019 (COVID-19) based on network pharmacology. 基于网络药理学的麻黄苦杏仁防治2019年科罗纳病毒病(COVID-19)的有效成分及作用机制探索
IF 4.5 3区 生物学 Q1 MATHEMATICAL & COMPUTATIONAL BIOLOGY Pub Date : 2020-11-10 DOI: 10.1186/s13040-020-00229-4
Kai Gao, Yan-Ping Song, Anna Song

Background: COVID-19 has caused a global pandemic, and there is no wonder drug for epidemic control at present. However, many clinical practices have shown that traditional Chinese medicine has played an important role in treating the outbreak. Among them, ephedra-bitter almond is a common couplet medicine in anti-COVID-19 prescriptions. This study aims to conduct an exploration of key components and mechanisms of ephedra-bitter almond anti-COVID-19 based on network pharmacology.

Material and methods: We collected and screened potential active components of ephedra-bitter almond based on the TCMSP Database, and we predicted targets of the components. Meanwhile, we collected relevant targets of COVID-19 through the GeneCards and CTD databases. Then, the potential targets of ephedra-bitter almond against COVID-19 were screened out. The key components, targets, biological processes, and pathways of ephedra-bitter almond anti-COVID-19 were predicted by constructing the relationship network of herb-component-target (H-C-T), protein-protein interaction (PPI), and functional enrichment. Finally, the key components and targets were docked by AutoDock Vina to explore their binding mode.

Results: Ephedra-bitter almond played an overall regulatory role in anti-COVID-19 via the patterns of multi-component-target-pathway. In addition, some key components of ephedra-bitter almond, such as β-sitosterol, estrone, and stigmasterol, had high binding activity to 3CL and ACE2 by molecular docking simulation, which provided new molecular structures for new drug development of COVID-19.

Conclusion: Ephedra-bitter almonds were used to prevent and treat COVID-19 through directly inhibiting the virus, regulating immune responses, and promoting body repair. However, this work is a prospective study based on data mining, and the findings need to be interpreted with caution.

背景:COVID-19 已造成全球大流行,目前尚无控制疫情的特效药。但许多临床实践表明,中药在治疗疫情中发挥了重要作用。其中,麻黄苦杏仁是抗COVID-19处方中常用的对联药物。本研究旨在基于网络药理学对麻黄苦杏仁抗COVID-19的关键成分和机制进行探索:材料和方法:我们基于 TCMSP 数据库收集和筛选了麻黄苦杏仁中潜在的活性成分,并预测了这些成分的靶点。同时,通过GeneCards和CTD数据库收集COVID-19的相关靶点。然后,筛选出麻黄苦杏针对 COVID-19 的潜在靶点。通过构建草药-成分-靶标(H-C-T)、蛋白质-蛋白质相互作用(PPI)和功能富集的关系网络,预测了麻黄苦杏仁抗COVID-19的关键成分、靶标、生物过程和通路。最后,利用 AutoDock Vina 对关键成分和靶标进行对接,探索其结合模式:结果:麻黄苦杏仁通过多组分-靶点-途径模式在抗COVID-19中发挥了整体调控作用。此外,通过分子对接模拟,麻黄苦杏仁的一些关键成分,如β-谷甾醇、雌酮、豆甾醇等,与3CL和ACE2具有较高的结合活性,为COVID-19的新药开发提供了新的分子结构:麻黄苦杏仁通过直接抑制病毒、调节免疫反应和促进机体修复来预防和治疗 COVID-19。然而,这项工作是一项基于数据挖掘的前瞻性研究,需要谨慎解读研究结果。
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引用次数: 0
Ten important roles for academic leaders in data science. 数据科学学术领袖的十大重要角色。
IF 4.5 3区 生物学 Q1 MATHEMATICAL & COMPUTATIONAL BIOLOGY Pub Date : 2020-10-26 eCollection Date: 2020-01-01 DOI: 10.1186/s13040-020-00228-5
Jason H Moore

Data science has emerged as an important discipline in the era of big data and biological and biomedical data mining. As such, we have seen a rapid increase in the number of data science departments, research centers, and schools. We review here ten important leadership roles for a successful academic data science chair, director, or dean. These roles include the visionary, executive, cheerleader, manager, enforcer, subordinate, educator, entrepreneur, mentor, and communicator. Examples specific to leadership in data science are given for each role.

数据科学已经成为大数据时代和生物医学数据挖掘时代的一门重要学科。因此,我们看到数据科学部门、研究中心和学校的数量迅速增加。我们在这里回顾了成功的学术数据科学主席、主任或院长的十个重要领导角色。这些角色包括梦想家、执行者、啦啦队长、经理、执行者、下属、教育者、企业家、导师和沟通者。每个角色都给出了具体到数据科学领导的例子。
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引用次数: 0
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Biodata Mining
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