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Long Non-coding RNAs in the Human Genome Acquired by Horizontal Gene Transfer 通过水平基因转移获得的人类基因组中的长非编码RNA
Q3 Computer Science Pub Date : 2018-08-31 DOI: 10.2174/1875036201811010182
R. Pierneef, F. Clasen, Oliver Bezuidt, O. Reva
Horizontal gene transfer of mobile genetic elements is an essential component of prokaryotic evolution. These insertion events in eukaryotes and particularly in the human genome have been investigated by various methodologies with varying results. In this paper, we implement a sequence composition approach to investigate insertions of genomic islands in the human genome. A modified version of a prokaryotic GI identifier, SeqWord Gene Island Sniffer v.2.0, was used to predict genomic islands in the hg38 version of the human genome. Predicted genomic islands were enriched with long non-coding RNAs and also contributed to the acquisition and modification of proteins associated with the immune system and gonad development, albeit to a lesser extent. The estimated rate of acquisition of these genomic islands in vertebrate genomes was non-linear with regards to species divergence times with an acceleration at the time of vertebrate land invasion and during the transition of prosimians to monkeys soon after the Cretaceous-Paleogene extinction. The rapid acquisition of non-conserved long non-coding RNAs in the human genome and probably in vertebrata genomes was facilitated by horizontal gene transfer. All predicted human genomic islands and supporting information are freely accessible from http://hislands.bi.up.ac.za.
移动遗传元件的水平基因转移是原核进化的重要组成部分。在真核生物中,特别是在人类基因组中,这些插入事件已经通过各种方法进行了研究,结果各不相同。在本文中,我们实现了一种序列组成方法来研究人类基因组中基因组岛的插入。原核GI标识符的修改版本SeqWord基因岛Sniffer v.2.0被用于预测人类基因组hg38版本中的基因组岛。预测的基因组岛富含长的非编码RNA,也有助于获得和修饰与免疫系统和性腺发育相关的蛋白质,尽管程度较低。脊椎动物基因组中这些基因组岛的估计获取率与物种分化时间有关是非线性的,在脊椎动物入侵陆地时以及白垩纪-古近纪灭绝后不久原体向猴子过渡期间,这种速度加快。水平基因转移促进了在人类基因组中以及可能在脊椎动物基因组中快速获得非保守的长非编码RNA。所有预测的人类基因组岛和支持信息都可以从http://hislands.bi.up.ac.za.
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引用次数: 1
Computational Pharmacogenetics of P-Glycoprotein Mediated Antiepileptic Drug Resistance p糖蛋白介导的抗癫痫药物耐药性的计算药物遗传学研究
Q3 Computer Science Pub Date : 2018-08-31 DOI: 10.2174/1875036201811010197
Sindhu Varghese, Ashok Palaniappan
The treatment of epilepsy using antiepileptogenic drugs is complicated by drug resistance, resulting in treatment failure in more than one-third of cases. Human P-glycoprotein (hPGP;MDR1) is a known epileptogenic mediator.Given that experimental investigations have suggested a role for pharmacogenetics in this treatment failure, it would be of interest to study hPGP polymorphisms that might contribute to the emergence of drug resistance. Changes in protein functional activity could result from mutations as well as altered abundance. Bioinformatics approaches were used to assess and rank the functional impact of 20 missenseMDR1polymorphisms and the top five were selected. The structures of the wildtype and variant hPGP were modelled based on the mouse PGP structure. Docking studies of the wildtype and variant hPGP with four standard anti-epileptic drugs were carried out.Our results revealed that the drug binding site with respect to the wildtype protein was uniform. However, the variant hPGP proteins displayed a repertoire of binding sites with stronger binding affinities towards the drug.Our studies indicated that specific polymorphisms inMDR1could drive conformational changes of PGP structure, facilitating altered contacts with drug-substrates and thus modifying their bioavailability. This suggests thatMDR1polymorphisms could actively contribute to the emergence of pharmaco-resistance in antiepileptic therapy.
使用抗癫痫药物治疗癫痫伴有耐药性,导致三分之一以上的病例治疗失败。人p -糖蛋白(hPGP;MDR1)是一种已知的致痫介质。鉴于实验研究表明药物遗传学在这种治疗失败中起作用,研究可能导致耐药性出现的hPGP多态性将是一项有趣的研究。蛋白质功能活性的变化可能是由突变和丰度改变引起的。利用生物信息学方法对20个missensemdr1多态性的功能影响进行评估和排序,并选出前5个。在小鼠PGP结构的基础上,建立了野生型和变异型hPGP的结构模型。将野生型和变异型hPGP与四种标准抗癫痫药物进行对接研究。我们的结果显示,药物结合位点相对于野生型蛋白是均匀的。然而,变体hPGP蛋白显示出对药物具有更强结合亲和力的结合位点。我们的研究表明,mdr1的特定多态性可以驱动PGP结构的构象变化,促进与药物底物的接触改变,从而改变其生物利用度。这表明mdr多态性可能在抗癫痫治疗中积极促进药物耐药的出现。
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引用次数: 1
Cyclostationary Analysis for Heart Rate Variability 心率变异性的循环平稳分析
Q3 Computer Science Pub Date : 2018-07-31 DOI: 10.2174/1875036201811010164
M. Ambrosanio, F. Baselice
Received: May 30, 2018 Revised: June 24, 2018 Accepted: June 26, 2018 Abstract: Background: During the last years, cyclostationarity has emerged as a new approach for the analysis of a certain type of non-stationary signals. This theoretical tool allows us to identify periodicity in signals which cannot be identified easily but also to separate useful signals for other interfering contributions that overlap in the spectral support.
摘要:背景:在过去的几年里,循环平稳性已经成为分析某种非平稳信号的一种新方法。这个理论工具使我们能够识别信号中的周期性,这些信号不容易识别,但也可以为频谱支持中重叠的其他干扰贡献分离有用的信号。
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引用次数: 2
A Study on the Relevance of Feature Selection Methods in Microarray Data 微阵列数据特征选择方法相关性研究
Q3 Computer Science Pub Date : 2018-07-31 DOI: 10.2174/1875036201811010117
Barnali Sahu, Satchidananda Dehuri, A. Jagadev
This paper studies the relevance of feature selection algorithms in microarray data for effective analysis. With no loss of generality, we present a list of feature selection algorithms and propose a generic categorizing framework that systematically groups algorithms into categories. The generic categorizing framework is based on search strategies and evaluation criteria. Further, it provides guidelines for selecting feature selection algorithms in general and in specific to the context of this study. In the context of microarray data analysis, the feature selection algorithms are classified into soft and non-soft computing categories. Their performance analysis with respect to microarray data analysis has been presented.
本文研究了微阵列数据中特征选择算法的相关性,以进行有效的分析。在不失一般性的情况下,我们给出了一个特征选择算法列表,并提出了一个通用的分类框架,将算法系统地分组。通用分类框架基于搜索策略和评估标准。此外,它还为选择本研究背景下的一般和特定特征选择算法提供了指导。在微阵列数据分析的背景下,特征选择算法被分为软计算和非软计算两类。已经介绍了它们相对于微阵列数据分析的性能分析。
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引用次数: 24
Enhanced Teamwork Communication Model for Electronic Clinical Pathways in Healthcare 医疗保健电子临床路径的增强团队沟通模型
Q3 Computer Science Pub Date : 2018-07-31 DOI: 10.2174/1875036201811010140
Wasef Mater, M. Aldwairi, R. Ibrahim
Background: One of the main challenges to hospital patient flow and treatment includes the lack of a patient-centered approach, which in turn contributes to non-effective teamwork communication. Objectives: To introduce patient-centered approach by implementing electronic clinical pathways to support more effective teamwork communication. To study how to enhance teamwork communication in healthcare by implementing electronic clinical pathways. Methods: We propose a research model, integrating the Donbedian model and the socio-technical theory, to investigate the factors that influence teamwork communication in healthcare. This research applied a quantitative approach using a survey method that was designed along the same principles as in the related work. Preliminary data collection was conducted using the survey method for problem formulation. Results: Designed and developed a model for implementing electronic clinical pathways to enhance teamwork communication in healthcare. Conclusion: This study provides recommendations to hospitals to enhance teamwork communication in healthcare by implementing electronic clinical pathways.
背景:医院患者流动和治疗的主要挑战之一包括缺乏以患者为中心的方法,这反过来又导致了无效的团队沟通。目的:通过实施电子临床路径,引入以患者为中心的方法,以支持更有效的团队沟通。目的:探讨如何通过实施电子临床路径加强医疗团队沟通。方法:采用东贝甸模型和社会技术理论相结合的研究模型,探讨医疗保健团队沟通的影响因素。本研究采用了定量的方法,采用了一种调查方法,该方法是按照与相关工作相同的原则设计的。采用问卷调查的方法进行初步的数据收集。结果:设计并开发了一个实施电子临床路径的模型,以加强医疗团队的沟通。结论:本研究为医院实施电子临床路径,加强医疗团队沟通提供建议。
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引用次数: 3
A Wearable System for the Stress Monitoring of Air Traffic Controllers During An Air Traffic Control Refresher Training and the Trier Social Stress Test: A Comparative Study 一种可穿戴式空中交通管制员压力监测系统在空中交通管制复习训练和Trier社会压力测试中的比较研究
Q3 Computer Science Pub Date : 2018-05-31 DOI: 10.2174/1875036201811010106
S. Rodrigues, J. S. Paiva, D. Dias, Marta Aleixo, R. Filipe, J. P. Cunha
Air Traffic Control (ATC) is a complex and demanding process, exposing Air Traffic Controllers (ATCs) to high stress. Recently, efforts have been made in ATC to maintain safety and efficiency in the face of increasing air traffic demands. Computer simulations have been a useful tool for ATC training, improving ATCs skills and consequently traffic safety.This study aims to: a) evaluate psychophysiological indices of stress in an ATC simulation environment using a wearable biomonitoring platform. In order to obtain a measure of ATCs stress levels, results from an experimental study with the same participants, that included a stress-induced task were used as a stress ground truth; b) understand if there are differences in stress levels of ATCs with different job functions (“advisors”vs“operationals”) when performing an ATC Refresher Training, in a simulator environment.Two studies were conducted with ATCs: Study 1, that included a stress-induced task - the Trier Social Stress Test (TSST) and Study 2, that included an ATC simulation task. Linear Heart Rate Variability (HRV) features from ATCs were acquired using a medical-grade wearable Electrocardiogram (ECG) device. Self-reports were used to measure perceived stress.TSST was self-reported as being much more stressful than the simulation task. Physiological data supports these results. Results from study 2 showed more stress among the “advisors” group when comparing to the “operational” group.Results point to the importance of the development of quantified Occupational Health (qOHealth) devices to allow monitoring and differentiation of ATCs stress responses.
空中交通管制(ATC)是一个复杂而苛刻的过程,使空中交通管制员(ATC)承受着很高的压力。面对日益增长的航空交通需求,空管部门近期致力维持安全及效率。计算机模拟已成为空管人员培训的有用工具,可提高空管人员的技能,从而提高交通安全。本研究旨在:a)利用可穿戴生物监测平台评估ATC模拟环境下应激的心理生理指标。为了获得ATCs压力水平的测量,来自同一参与者的实验研究结果,包括压力诱发的任务,被用作压力基础真理;b)了解不同工作职能(“顾问”与“操作”)的空管人员在模拟器环境中进行空管进修培训时,压力水平是否存在差异。两项研究是用ATC进行的:研究1包括一个压力诱发的任务——特里尔社会压力测试(TSST),研究2包括一个ATC模拟任务。线性心率变异性(HRV)特征从atc获得使用医疗级可穿戴心电图(ECG)设备。自我报告被用来测量感知压力。自述的TSST比模拟任务压力大得多。生理学数据支持这些结果。研究2的结果显示,与“操作”组相比,“顾问”组的压力更大。结果表明,开发量化职业健康(qOHealth)设备对于监测和区分ATCs应激反应具有重要意义。
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引用次数: 3
Bioinformatic Analysis of a “Functional Cluster” Probably Related to Retinitis Pigmentosa 可能与色素性视网膜炎有关的“功能簇”的生物信息学分析
Q3 Computer Science Pub Date : 2018-05-23 DOI: 10.2174/1875036201811010089
L. Donato, L. Denaro
RESEARCH ARTICLE Bioinformatic Analysis of a “Functional Cluster” Probably Related to Retinitis Pigmentosa Luigi Donato and Lucia Denaro Department of Biomedical and Dental Sciences and Morphofunctional Images, Division of Medical Biotechnologies and Preventive Medicine, University of Messina, Messina, Italy Department of vanguard medicine and therapies, biomolecular strategies and neuroscience, Section of NeuroscienceApplied Molecular Genetics and Predictive Medicine, I. E. ME. S. T., Palermo, Italy Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy
研究文章可能与色素性视网膜炎有关的“功能簇”的生物信息学分析Luigi Donato和Lucia Denaro意大利墨西拿大学医学生物技术和预防医学部生物医学和牙科科学与形态功能图像系,生物分子策略和神经科学,神经科学应用分子遗传学和预测医学系,意大利巴勒莫,意大利墨西拿大学化学、生物、药物和环境科学系
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引用次数: 0
Android Library for Recognition of Activities of Daily Living: Implementation Considerations, Challenges, and Solutions 用于识别日常生活活动的Android库:实施注意事项、挑战和解决方案
Q3 Computer Science Pub Date : 2018-05-22 DOI: 10.2174/1875036201811010061
I. Pires, Maria Cristina Canavarro Teixeira, Nuno Pombo, N. Garcia, Francisco Flórez-Revuelta, S. Spinsante, R. Goleva, Eftim Zdravevski
This work was supported by FCT project UID/EEA/50008/2013 (Este trabalho foi suportado pelo projecto FCT UID/EEA/50008/2013). The authors would also like to acknowledge the contribution of the COST Action IC1303 – AAPELE – Architectures, Algorithms and Protocols for Enhanced Living Environments.
这项工作得到了FCT项目UID/EEA/50008/2013(Este trabalho foi suportado pelo projecto FCT UID/EEA/50008/2013)的支持。作者还想感谢成本行动IC1303–AAPELE–增强生活环境的架构、算法和协议的贡献。
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引用次数: 18
Clinical Model to the Analysis of Synergy Pattern Changes of Back Muscles and its Relationship with the Occurrence of Fatigue 背部肌肉协同模式变化分析的临床模型及其与疲劳发生的关系
Q3 Computer Science Pub Date : 2018-05-14 DOI: 10.2174/1875036201811010052
Armin Hakkak Moghaddam Torbati, E. Tahami, H. Kobravi
Methods: Participants were ten male with average age 24 ± 1. Firstly, the process of fatigue during sitting was observed by mid-frequency index. For performing the necessary analysis, the 10-second window of time was used. The 15 minutes of time trial was divided into 3 sub-terms. Each sub-term was investigated separately. The sub-terms contain: The beginning of record until the 90th second, from the 90th second to the 600th second and from the 600th second to the 900th second.
方法:男性10例,平均年龄24±1岁。首先,采用中频指数法观察坐姿疲劳过程。为了执行必要的分析,使用了10秒的时间窗口。15分钟计时赛分为3个分项。每个分项分别进行调查。子条款包括:记录开始到90秒,从90秒到600秒,从600秒到900秒。
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引用次数: 1
Identification of Better Gene Expression Data for Mosquito Species Classification Using Radial Basis Function Network Methodology 基于径向基函数网络方法的蚊虫物种分类基因表达数据筛选
Q3 Computer Science Pub Date : 2018-04-30 DOI: 10.2174/1875036201811010038
J. Eswari, C. Venkateswarlu
Investigation in bioinformatics has developed promptly in latest years owing to improvements in sequence excavating techniques. Gene sequences in DNA are supplemented with great extent of information, but the intricacy and complexity of this information causes difficulty in analyzing it by using standard classical methods of classification. In this work, a Radial Basis Function Network (RBFN) methodology with self-network arrangement is presented for identification of mosquito species based on the genetic design content of ITS2 ribosomal DNA sequences.
近年来,由于序列挖掘技术的进步,生物信息学研究迅速发展。DNA中的基因序列补充了大量的信息,但这些信息的复杂性和复杂性导致难以使用标准的经典分类方法进行分析。本文基于ITS2核糖体DNA序列的遗传设计内容,提出了一种自网络排列的径向基函数网络(RBFN)方法来识别蚊子物种。
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引用次数: 1
期刊
Open Bioinformatics Journal
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