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https://www.readbyqxmd.com/read/28732368/meta-analysis-of-micrornas-expression-in-head-and-neck-cancer-uncovering-association-with-outcome-and-mechanisms
#1
Joshua Lubov, Mariana Maschietto, Iman Ibrahim, Alex Mlynarek, Michael Hier, Luiz Paulo Kowalski, Moulay A Alaoui-Jamali, Sabrina Daniela da Silva
Head and neck squamous cell carcinoma (HNSCC) is often diagnosed at advanced stages, incurring significant high mortality and morbidity. This review explored the risk stratification of miRNAs, and investigated the impact of miRNA networking in HNSCC prognostication. We performed a meta-analysis and a systematic literature search on online databases for papers published prior to December 1, 2016. The list of miRNAs was uploaded to MetacoreTM to construct a protein-protein interaction network, which was used to identify targets of the miRNAs and potential drugs...
July 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/28732062/a-drosophila-model-for-toxicogenomics-genetic-variation-in-susceptibility-to-heavy-metal-exposure
#2
Shanshan Zhou, Sarah E Luoma, Genevieve E St Armour, Esha Thakkar, Trudy F C Mackay, Robert R H Anholt
The genetic factors that give rise to variation in susceptibility to environmental toxins remain largely unexplored. Studies on genetic variation in susceptibility to environmental toxins are challenging in human populations, due to the variety of clinical symptoms and difficulty in determining which symptoms causally result from toxic exposure; uncontrolled environments, often with exposure to multiple toxicants; and difficulty in relating phenotypic effect size to toxic dose, especially when symptoms become manifest with a substantial time lag...
July 21, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28731515/analysis-of-structure-function-network-decoupling-in-the-brain-systems-of-spastic-diplegic-cerebral-palsy
#3
Dongha Lee, Chongwon Pae, Jong Doo Lee, Eun Sook Park, Sung-Rae Cho, Min-Hee Um, Seung-Koo Lee, Maeng-Keun Oh, Hae-Jeong Park
Manifestation of the functionalities from the structural brain network is becoming increasingly important to understand a brain disease. With the aim of investigating the differential structure-function couplings according to network systems, we investigated the structural and functional brain networks of patients with spastic diplegic cerebral palsy with periventricular leukomalacia compared to healthy controls. The structural and functional networks of the whole brain and motor system, constructed using deterministic and probabilistic tractography of diffusion tensor magnetic resonance images and Pearson and partial correlation analyses of resting-state functional magnetic resonance images, showed differential embedding of functional networks in the structural networks in patients...
July 21, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28731453/topological-alterations-and-symptom-relevant-modules-in-the-whole-brain-structural-network-in-semantic-dementia
#4
Junhua Ding, Keliang Chen, Weibin Zhang, Ming Li, Yan Chen, Qing Yang, Yingru Lv, Qihao Guo, Zaizhu Han
BACKGROUND: Semantic dementia (SD) is characterized by a selective decline in semantic processing. Although the neuropsychological pattern of this disease has been identified, its topological global alterations and symptom-relevant modules in the whole-brain anatomical network have not been fully elucidated. OBJECTIVE: This study aims to explore the topological alteration of anatomical network in SD and reveal the modules associated with semantic deficits in this disease...
July 19, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28731166/screening-of-the-prognostic-targets-for-breast-cancer-based-co-expression-modules-analysis
#5
Huijuan Liu, Hui Ye
The purpose of the present study was to screen the prognostic targets for breast cancer based on a co-expression modules analysis. The microarray dataset GSE73383 was downloaded from the Gene Expression Omnibus (GEO) database, including 15 breast cancer samples with good prognosis and 9 breast cancer samples with poor prognosis. The differentially expressed genes (DEGs) were identified with the limma package. The Database for Annotation, Visualization and Integrated Discovery was used to perform Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis...
July 21, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28731161/investigation-of-the-molecular-mechanisms-underlying-myotonic-dystrophy-types-1-and-2-cataracts-using-microrna%C3%A2-target-gene-networks
#6
Dewang Shao, Xiaoquan Zhu, Wei Sun, Lu Huo, Wei Chen, Hua Wang, Bing Liu, Peng Pan
The purpose of the present study was to investigate the molecular mechanisms of myotonic dystrophy (DM) 1 and 2 cataracts using bioinformatics methods. A microarray dataset (E‑MEXP‑3365) downloaded from the Array Express database included lens epithelial samples of DM1 and DM2 cataract patients (n=3/group) and non‑DM lens epithelial samples as a control (n=4). Differentially expressed genes (DEGs) were identified between DM1 and control samples, and between DM2 and control samples. Pathway enrichment analyses were performed for the DEGs...
July 21, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28731140/integrated-analysis-of-genome%C3%A2-wide-gene-expression-and-dna-methylation-microarray-of-diffuse-large-b%C3%A2-cell-lymphoma-with-tet-mutations
#7
Pengfei Liu, Wenhua Jiang, Jinkun Zhao, Huilai Zhang
Diffuse large B-cell lymphoma (DLBCL), the most frequently occurring type of lymphoid malignancy, has been demonstrated to be associated with mutations of Ten‑Eleven Translocation (TET). In order to explore the association between DLBCL and TET mutations, the present study analyzed the gene expression and methylation profiles in human DLBCL biopsy tissues with wildtype and mutated TET2. The microarray dataset GSE37365, containing two subseries: the genome‑wide gene expression dataset GSE37362 and the DNA methylation microarray dataset GSE37363, was downloaded from the Gene Expression Omnibus database...
July 21, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28730732/shared-atypical-default-mode-and-salience-network-functional-connectivity-between-autism-and-schizophrenia
#8
Heng Chen, Lucina Q Uddin, Xujun Duan, Junjie Zheng, Zhiliang Long, Youxue Zhang, Xiaonan Guo, Yan Zhang, Jingping Zhao, Huafu Chen
Schizophrenia and autism spectrum disorder (ASD) are two prevalent neurodevelopmental disorders sharing some similar genetic basis and clinical features. The extent to which they share common neural substrates remains unclear. Resting-state fMRI data were collected from 35 drug-naïve adolescent participants with first-episode schizophrenia (15.6 ± 1.8 years old) and 31 healthy controls (15.4 ± 1.6 years old). Data from 22 participants with ASD (13.1 ± 3.1 years old) and 21 healthy controls (12...
July 21, 2017: Autism Research: Official Journal of the International Society for Autism Research
https://www.readbyqxmd.com/read/28730480/identification-and-validation-of-driver-kinases-from-next-generation-sequencing-data
#9
Andri Leonidou, Barrie Peck, Rachael Natrajan
It is well appreciated that activating mutations in kinase genes result in kinome reprogramming that leads to altered downstream signaling networks that drive tumor progression. Indeed small-molecule inhibition of activated kinases has heralded the wave of precision medicine in the past decade. The advent of next-generation sequencing has identified a plethora of potentially activating mutations and fusion genes in previously unreported kinase genes that can potentially be developed as targeted therapies. However, the bottleneck in the translation of these alterations into clinically useful therapies lies in their functional validation...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28729899/evolutionary-loss-of-melanogenesis-in-the-tunicate-molgula-occulta
#10
Claudia Racioppi, Maria Carmen Valoroso, Ugo Coppola, Elijah K Lowe, C Titus Brown, Billie J Swalla, Lionel Christiaen, Alberto Stolfi, Filomena Ristoratore
BACKGROUND: Analyzing close species with diverse developmental modes is instrumental for investigating the evolutionary significance of physiological, anatomical and behavioral features at a molecular level. Many examples of trait loss are known in metazoan populations living in dark environments. Tunicates are the closest living relatives of vertebrates and typically present a lifecycle with distinct motile larval and sessile adult stages. The nervous system of the motile larva contains melanized cells associated with geotactic and light-sensing organs...
2017: EvoDevo
https://www.readbyqxmd.com/read/28729710/learning-a-health-knowledge-graph-from-electronic-medical-records
#11
Maya Rotmensch, Yoni Halpern, Abdulhakim Tlimat, Steven Horng, David Sontag
Demand for clinical decision support systems in medicine and self-diagnostic symptom checkers has substantially increased in recent years. Existing platforms rely on knowledge bases manually compiled through a labor-intensive process or automatically derived using simple pairwise statistics. This study explored an automated process to learn high quality knowledge bases linking diseases and symptoms directly from electronic medical records. Medical concepts were extracted from 273,174 de-identified patient records and maximum likelihood estimation of three probabilistic models was used to automatically construct knowledge graphs: logistic regression, naive Bayes classifier and a Bayesian network using noisy OR gates...
July 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28729650/large-scale-analysis-of-drug-side-effects-via-complex-regulatory-modules-composed-of-micrornas-transcription-factors-and-gene-sets
#12
Xiaodong Jia, Qing Jin, Xiangqiong Liu, Xiusen Bian, Yunfeng Wang, Lei Liu, Hongzhe Ma, Fujian Tan, Mingliang Gu, Xiujie Chen
Identifying the occurrence mechanism of drug-induced side effects (SEs) is critical for design of drug target and new drug development. The expression of genes in biological processes is regulated by transcription factors(TFs) and/or microRNAs. Most of previous studies were focused on a single level of gene or gene sets, while studies about regulatory relationships of TFs, miRNAs and biological processes are very rare. Discovering the complex regulating relations among TFs, gene sets and miRNAs will be helpful for researchers to get a more comprehensive understanding about the mechanism of side reaction...
July 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28728280/-the-problems-and-challenges-in-the-current-eye-health-management-in-china
#13
H D Zou
The core goal of "Thirteenth Five-Year Plan for National Eye Health (2016 to 2020)" is to obtain eye health. At present, there are still several problems hampering Chinese eye health management system development, including the lack of top policy design, system protection and financial investment, weak support from primary health care institutions, other medical disciplines and social forces, and insufficient digital information. To achieve effective eye health management, it is necessary to address the sustainability of eye health management, the integrity of eye health digital information data and the feasibility of eye health payment...
July 11, 2017: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/28728027/highly-sensitive-response-of-solution-processed-bismuth-sulfide-nanobelts-for-room-temperature-nitrogen-dioxide-detection
#14
Hao Kan, Min Li, Zhilong Song, Sisi Liu, Baohui Zhang, Jingyao Liu, Ming-Yu Li, Guangzu Zhang, ShengLin Jiang, Huan Liu
Low dimensional nanomaterials have emerged as candidates for gas sensors owing to their unique size-dependent properties. In this paper, Bi2S3 nanobelts were synthesized via a facile solvothermal process and spin-coated onto alumina substrates at room temperature. The conductometric devices can even sensitively response to the relatively low concentrations of NO2 at room temperature, and their sensing performance can be effectively enhanced by the ligand exchange treatment with inorganic salts. The Pb(NO3)2-treated device exhibited superior sensing performance of 58...
July 5, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28727780/comparative-analysis-of-signature-genes-in-prrsv-infected-porcine-monocyte-derived-cells-to-different-stimuli
#15
Laura C Miller, Damarius S Fleming, Xiangdong Li, Darrell O Bayles, Frank Blecha, Yongming Sang
Monocyte-derived DCs (mDCs) are major target cells in porcine reproductive and respiratory syndrome virus (PRRSV) pathogenesis; however, the plasticity of mDCs in response to activation stimuli and PRRSV infection remains unstudied. In this study, we polarized mDCs, and applied genome-wide transcriptomic analysis and predicted protein-protein interaction networks to compare signature genes involved in mDCs activation and response to PRRSV infection. Porcine mDCs were polarized with mediators for 30 hours, then mock-infected, infected with PRRSV strain VR2332, or a highly pathogenic PRRSV strain (rJXwn06), for 5 h...
2017: PloS One
https://www.readbyqxmd.com/read/28727646/development-and-validation-of-a-quantitative-measure-of-adaptive-behaviors-in-women-with-pelvic-floor-disorders
#16
John T Wei, Rodney Dunn, Ingrid Nygaard, Kathryn Burgio, Emily S Lukacz, Alayne Markland, Patricia A Wren, Linda Brubaker, Matthew D Barber, J Eric Jelovsek, Cathie Spino, Susie Meikle, Nancy Janz
PURPOSE: To establish validity for the Pelvic Floor Disorders Network (PFDN) self-administered Adaptive Behavior Index (ABI) and to assess whether ABI assesses known discordance between severity of pelvic floor symptoms and self-reported bother. METHODS: In addition to the ABI questionnaire, participants in 1 of 6 Pelvic Floor Disorders Network trials completed condition-specific measures of pretreatment symptom severity (including Pelvic Floor Distress Inventory; PFDI) and health-related quality of life (Pelvic Floor Impact Questionnaire; PFIQ)...
July 20, 2017: Female Pelvic Medicine & Reconstructive Surgery
https://www.readbyqxmd.com/read/28727557/integrating-flexible-sensor-and-virtual-self-organizing-dc-grid-model-with-cloud-computing-for-blood-leakage-detection-during-hemodialysis
#17
Ping-Tzan Huang, Tai-Lang Jong, Chien-Ming Li, Wei-Ling Chen, Chia-Hung Lin
Blood leakage and blood loss are serious complications during hemodialysis. From the hemodialysis survey reports, these life-threatening events occur to attract nephrology nurses and patients themselves. When the venous needle and blood line are disconnected, it takes only a few minutes for an adult patient to lose over 40% of his / her blood, which is a sufficient amount of blood loss to cause the patient to die. Therefore, we propose integrating a flexible sensor and self-organizing algorithm to design a cloud computing-based warning device for blood leakage detection...
July 18, 2017: IEEE Transactions on Biomedical Circuits and Systems
https://www.readbyqxmd.com/read/28727484/construction-and-analysis-of-circular-rna-molecular-regulatory-networks-in-liver-cancer
#18
Shuangchun Ren, Zhuoyuan Xin, Yinyan Xu, Jianting Xu, Guoqing Wang
Liver cancer is the sixth most prevalent cancer, and the third most frequent cause of cancer-related deaths. Circular RNAs (circRNAs), a kind of special endogenous ncRNAs, have been coming back to the forefront of cancer genomics research. In this study, we employed a systems biology approach to construct and analyze the circRNA molecular regulatory networks in the context of liver cancer. We detected a total of 127 differentially expressed circRNAs and 3,235 differentially expressed mRNAs. We selected the top-5 upregulated circRNAs to construct a circRNA-miRNA-mRNA network...
July 20, 2017: Cell Cycle
https://www.readbyqxmd.com/read/28726130/transmission-network-characteristics-based-on-env-and-gag-sequences-from-msm-during-acute-hiv-1-infection-in-beijing-china
#19
Zhimin Zhang, Lili Dai, Yan Jiang, Kaidi Feng, Lifeng Liu, Wei Xia, Fengjiao Yu, Jun Yao, Wenge Xing, Lijun Sun, Tong Zhang, Hao Wu, Bin Su, Maofeng Qiu
Molecular epidemiology can be used to identify human immunodeficiency virus (HIV) transmission clusters, usually using pol sequence for analysis. In the present study, we explored appropriate parameters to construct a simple network using HIV env and gag sequences instead of pol sequences for constructing a phylogenetic tree and a genetic transmission subnetwork, which were used to identify individuals with many potential transmission links and to explore the evolutionary dynamics of the virus among men who have sex with men (MSM) in Beijing...
July 19, 2017: Archives of Virology
https://www.readbyqxmd.com/read/28725177/characterization-of-lgr5-progenitor-cell-transcriptomes-after-neomycin-injury-in-the-neonatal-mouse-cochlea
#20
Shasha Zhang, Yuan Zhang, Pengfei Yu, Yao Hu, Han Zhou, Lingna Guo, Xiaochen Xu, Xiaocheng Zhu, Muhammad Waqas, Jieyu Qi, Xiaoli Zhang, Yan Liu, Fangyi Chen, Mingliang Tang, Xiaoyun Qian, Haibo Shi, Xia Gao, Renjie Chai
Lgr5+ supporting cells (SCs) are enriched hair cell (HC) progenitors in the cochlea. Both in vitro and in vivo studies have shown that HC injury can spontaneously activate Lgr5+ progenitors to regenerate HCs in the neonatal mouse cochlea. Promoting HC regeneration requires the understanding of the mechanism of HC regeneration, and this requires knowledge of the key genes involved in HC injury-induced self-repair responses that promote the proliferation and differentiation of Lgr5+ progenitors. Here, as expected, we found that neomycin-treated Lgr5+ progenitors (NLPs) had significantly greater HC regeneration ability, and greater but not significant proliferation ability compared to untreated Lgr5+ progenitors (ULPs) in response to neomycin exposure...
2017: Frontiers in Molecular Neuroscience
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