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Wgcna transcriptome

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https://www.readbyqxmd.com/read/29196862/voluntary-exposure-to-a-toxin-the-genetic-influence-on-ethanol-consumption
#1
Paula L Hoffman, Laura M Saba, Lauren A Vanderlinden, Boris Tabakoff
Ethyl alcohol is a toxin that, when consumed at high levels, produces organ damage and death. One way to prevent or ameliorate this damage in humans is to reduce the exposure of organs to alcohol by reducing alcohol ingestion. Both the propensity to consume large volumes of alcohol and the susceptibility of human organs to alcohol-induced damage exhibit a strong genetic influence. We have developed an integrative genetic/genomic approach to identify transcriptional networks that predispose complex traits, including propensity for alcohol consumption and propensity for alcohol-induced organ damage...
December 1, 2017: Mammalian Genome: Official Journal of the International Mammalian Genome Society
https://www.readbyqxmd.com/read/29189710/non-additive-transcriptomic-responses-to-inoculation-with-rhizobia-in-a-young-allopolyploid-compared-with-its-diploid-progenitors
#2
Adrian F Powell, Jeff J Doyle
Root nodule symbioses (nodulation) and whole genome duplication (WGD, polyploidy) are both important phenomena in the legume family (Leguminosae). Recently, it has been proposed that polyploidy may have played a critical role in the origin or refinement of nodulation. However, while nodulation and polyploidy have been studied independently, there have been no direct studies of mechanisms affecting the interactions between these phenomena in symbiotic, nodule-forming species. Here, we examined the transcriptome-level responses to inoculation in the young allopolyploid Glycine dolichocarpa (T2) and its diploid progenitor species to identify underlying processes leading to the enhanced nodulation responses previously identified in T2...
November 30, 2017: Genes
https://www.readbyqxmd.com/read/29186495/sugar-metabolism-reprogramming-in-a-non-climacteric-bud-mutant-of-a-climacteric-plum-fruit-during-development-on-the-tree
#3
Macarena Farcuh, Bosheng Li, Rosa M Rivero, Lyudmila Shlizerman, Avi Sadka, Eduardo Blumwald
We investigated sugar metabolism in leaves and fruits of two Japanese plum (Prunus salicina Lindl.) cultivars, the climacteric Santa Rosa and its bud sport mutant the non-climacteric Sweet Miriam, during development on the tree. We previously characterized differences between the two cultivars. Here, we identified key sugar metabolic pathways. Pearson coefficient correlations of metabolomics and transcriptomic data and weighted gene co-expression network analysis (WGCNA) of RNA sequencing (RNA-Seq) data allowed the identification of 11 key sugar metabolism-associated genes: sucrose synthase, sucrose phosphate synthase, cytosolic invertase, vacuolar invertase, invertase inhibitor, α-galactosidase, β-galactosidase, galactokinase, trehalase, galactinol synthase, and raffinose synthase...
November 25, 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/29177853/bioinformatic-assessment-of-macrophage-activation-by-the-innate-immune-system
#4
Thomas Ulas, Joachim L Schultze, Marc Beyer
Weighted gene co-expression network analysis (WGCNA) allows for the identification and characterization of cell type-specific gene modules in complex transcriptome datasets. Here, we use a microarray dataset of human macrophages comprising 29 conditions and 299 samples generated by differentiation of CD14+ monocytes into macrophages followed by in vitro stimulations to identify stimulation-specific gene modules. These gene modules can be used for experimental validation, as well as further bioinformatic analysis to determine key pathways or upstream transcription factors...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29166861/comprehensive-transcriptome-analysis-reveals-distinct-regulatory-programs-during-vernalization-and-floral-bud-development-of-orchardgrass-dactylis-glomerata-l
#5
Guangyan Feng, Linkai Huang, Ji Li, Jianping Wang, Lei Xu, Ling Pan, Xinxin Zhao, Xia Wang, Ting Huang, Xinquan Zhang
BACKGROUND: Vernalization and the transition from vegetative to reproductive growth involve multiple pathways, vital for controlling floral organ formation and flowering time. However, little transcription information is available about the mechanisms behind environmental adaption and growth regulation. Here, we used high-throughput sequencing to analyze the comprehensive transcriptome of Dactylis glomerata L. during six different growth periods. RESULTS: During vernalization, 4689 differentially expressed genes (DEGs) significantly increased in abundance, while 3841 decreased...
November 22, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/29146547/a-gene-module-associated-with-dysregulated-tcr-signaling-pathways-in-cd4-t-cell-subsets-in-rheumatoid-arthritis
#6
Shuji Sumitomo, Yasuo Nagafuchi, Yumi Tsuchida, Haruka Tsuchiya, Mineto Ota, Kazuyoshi Ishigaki, Shinichiro Nakachi, Rika Kato, Keiichi Sakurai, Norio Hanata, Shoko Tateishi, Hiroko Kanda, Akari Suzuki, Yuta Kochi, Keishi Fujio, Kazuhiko Yamamoto
We analyzed the transcriptome of detailed CD4(+) T cell subsets including them after abatacept treatment, and examined the difference among CD4(+) T cell subsets and identified gene sets that are closely associated disease activity and abatacept treatment. Seven CD4(+) T cell subsets (naive, Th1, Th17, Th1/17, nonTh1/17, Tfh and Treg) were sorted from PBMCs taken from 10 RA patients and 10 healthy controls, and three RA patients donated samples before and 6 months after abatacept treatment. Paired-end RNA sequencing was performed using HiSeq 2500...
November 13, 2017: Journal of Autoimmunity
https://www.readbyqxmd.com/read/29145611/identification-of-novel-potentially-pleiotropic-variants-associated-with-osteoporosis-and-obesity-using-cfdr-method
#7
Yuan Hu, Li-Jun Tan, Xiang-Ding Chen, Zhen Liu, Shi-Shi Min, Qin Zeng, Hui Shen, Hong-Wen Deng
Context: Genome-wide association studies (GWASs) have been successful in identifying loci associated with osteoporosis and obesity. However, the findings just explain a small fraction of the total genetic variance. Objective: The aim of this study was to identify novel pleiotropic genes important in osteoporosis and obesity. Design and Setting: A pleiotropic conditional false discovery rate (cFDR) method was applied to three independent GWAS summary statistics of femoral neck bone mineral density (FN BMD), body mass index (BMI) and waist-hip ratio (WHR)...
November 14, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29127223/systems-genetic-analysis-of-brown-adipose-tissue-function
#8
Michal Pravenec, Laura Saba, Vaclav Zidek, Vladimir Landa, Petr Mlejnek, Jan Silhavy, Miroslava Simakova, Hynak Strnad, Jaroslava Trnovska, Vojtech Skop, Martina Huttl, Irena Markova, Olena Oliyarnyk, Hana Malinska, Ludmila Kazdova, Harry Smith, Boris Tabakoff
Brown adipose tissue (BAT) has been suggested to play an important role in lipid and glucose metabolism in rodents and possibly also in humans. In the current study, we used genetic and correlation analyses in the BXH/HXB recombinant inbred (RI) strains, derived from Brown Norway (BN) and spontaneously hypertensive rats (SHR), to identify genetic determinants of BAT function. Linkage analyses revealed a quantitative trait locus (QTL) associated with interscapular BAT mass on chromosome 4 and two closely linked QTLs associated with glucose oxidation and glucose incorporation into BAT lipids on chromosome 2...
November 10, 2017: Physiological Genomics
https://www.readbyqxmd.com/read/29115926/co-expression-network-analysis-of-the-transcriptomes-of-rice-roots-exposed-to-various-cadmium-stresses-reveals-universal-cadmium-responsive-genes
#9
Mingpu Tan, Dan Cheng, Yuening Yang, Guoqiang Zhang, Mengjie Qin, Jun Chen, Yahua Chen, Mingyi Jiang
BACKGROUND: The migration of cadmium (Cd) from contaminated soil to rice is a cause for concern. However, the molecular mechanism underlying the response of rice roots to various Cd stresses remains to be clarified from the viewpoint of the co-expression network at a system-wide scale. RESULTS: We employed a comparative RNAseq-based approach to identify early Cd-responsive differentially expressed genes (DEGs) in rice 'Nipponbare' seedling roots after 1 h of high-Cd treatment...
November 7, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/29025019/differing-molecular-response-of-young-and-advanced-maternal-age-human-oocytes-to-ivm
#10
J M Reyes, E Silva, J L Chitwood, W B Schoolcraft, R L Krisher, P J Ross
STUDY QUESTION: What effect does maternal age have on the human oocyte's molecular response to in vitro oocyte maturation? SUMMARY ANSWER: Although polyadenylated transcript abundance is similar between young and advanced maternal age (AMA) germinal vesicle (GV) oocytes, metaphase II (MII) oocytes exhibit a divergent transcriptome resulting from a differential response to in vitro oocyte maturation. WHAT IS KNOWN ALREADY: Microarray studies considering maternal age or maturation stage have shown that either of these factors will affect oocyte polyadenylated transcript abundance in human oocytes...
November 1, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28970079/human-kidney-tubule-specific-gene-expression-based-dissection-of-chronic-kidney-disease-traits
#11
Pazit Beckerman, Chengxiang Qiu, Jihwan Park, Nora Ledo, Yi-An Ko, Ae-Seo Deok Park, Sang-Youb Han, Peter Choi, Matthew Palmer, Katalin Susztak
Chronic kidney disease (CKD) has diverse phenotypic manifestations including structural (such as fibrosis) and functional (such as glomerular filtration rate and albuminuria) alterations. Gene expression profiling has recently gained popularity as an important new tool for precision medicine approaches. Here we used unbiased and directed approaches to understand how gene expression captures different CKD manifestations in patients with diabetic and hypertensive CKD. Transcriptome data from ninety-five microdissected human kidney samples with a range of demographics, functional and structural changes were used for the primary analysis...
October 2017: EBioMedicine
https://www.readbyqxmd.com/read/28912681/divergence-in-morris-water-maze-based-cognitive-performance-under-chronic-stress-is-associated-with-the-hippocampal-whole-transcriptomic-modification-in-mice
#12
Seung H Jung, Milene L Brownlow, Matteo Pellegrini, Ryan Jankord
Individual susceptibility determines the magnitude of stress effects on cognitive function. The hippocampus, a brain region of memory consolidation, is vulnerable to stressful environments, and the impact of stress on hippocampus may determine individual variability in cognitive performance. Therefore, the purpose of this study was to define the relationship between the divergence in spatial memory performance under chronically unpredictable stress and an associated transcriptomic alternation in hippocampus, the brain region of spatial memory consolidation...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28903352/analysis-of-bos-taurus-and-sus-scrofa-x-and-y-chromosome-transcriptome-highlights-reproductive-driver-genes
#13
Faheem Ahmed Khan, Hui Liu, Hao Zhou, Kai Wang, Muhammad Tahir Ul Qamar, Nuruliarizki Shinta Pandupuspitasari, Zhang Shujun
The biology of sperm, its capability of fertilizing an egg and its role in sex ratio are the major biological questions in reproductive biology. To answer these question we integrated X and Y chromosome transcriptome across different species: Bos taurus and Sus scrofa and identified reproductive driver genes based on Weighted Gene Co-Expression Network Analysis (WGCNA) algorithm. Our strategy resulted in 11007 and 10445 unique genes consisting of 9 and 11 reproductive modules in Bos taurus and Sus scrofa, respectively...
August 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28886704/differentiated-transcriptional-signatures-in-the-maize-landraces-of-chiapas-mexico
#14
Matthew A Kost, Hugo R Perales, Saranga Wijeratne, Asela J Wijeratne, Eric Stockinger, Kristin L Mercer
BACKGROUND: Landrace farmers are the keepers of crops locally adapted to the environments where they are cultivated. Patterns of diversity across the genome can provide signals of past evolution in the face of abiotic and biotic change. Understanding this rich genetic resource is imperative especially since diversity can provide agricultural security as climate continues to shift. RESULTS: Here we employ RNA sequencing (RNA-seq) to understand the role that conditions that vary across a landscape may have played in shaping genetic diversity in the maize landraces of Chiapas, Mexico...
September 8, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28872670/tcr-pmhc-encounter-differentially-regulates-transcriptomes-of-tissue-resident-cd8-t%C3%A2-cells
#15
Akihiro Yoshizawa, Kevin Bi, Derin B Keskin, Guanglan Zhang, Bruce Reinhold, Ellis L Reinherz
To investigate the role of TCR-pMHC interaction in regulating lung CD8 tissue-resident T cell (TR ) differentiation, polyclonal responses were compared against NP366-374 /D(b) and PA224-233 /D(b) , two immunodominant epitopes that arise during influenza A infection in mice. Memory niches distinct from iBALTs develop within the lamina propria, supporting CD103(+) and CD103(-) CD8 TR generation and intraepithelial translocation. Gene set enrichment analysis (GSEA) and weighted gene co-expression network analysis (WGCNA) identify dominant TCR, adherens junction, RIG-I-like and NOD-like pattern recognition receptor as well as TGF-β signaling pathways and memory signatures among PA224-233 /D(b) T cells consistent with T resident memory (TRM ) status...
September 5, 2017: European Journal of Immunology
https://www.readbyqxmd.com/read/28819298/transcriptome-based-network-analysis-reveals-renal-cell-type-specific-dysregulation-of-hypoxia-associated-transcripts
#16
Natallia Shved, Gregor Warsow, Felix Eichinger, David Hoogewijs, Simone Brandt, Peter Wild, Matthias Kretzler, Clemens D Cohen, Maja T Lindenmeyer
Accumulating evidence suggests that dysregulation of hypoxia-regulated transcriptional mechanisms is involved in development of chronic kidney diseases (CKD). However, it remains unclear how hypoxia-induced transcription factors (HIFs) and subsequent biological processes contribute to CKD development and progression. In our study, genome-wide expression profiles of more than 200 renal biopsies from patients with different CKD stages revealed significant correlation of HIF-target genes with eGFR in glomeruli and tubulointerstitium...
August 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28798764/root-transcriptomic-analysis-revealing-the-importance-of-energy-metabolism-to-the-development-of-deep-roots-in-rice-oryza-sativa-l
#17
Qiaojun Lou, Liang Chen, Hanwei Mei, Kai Xu, Haibin Wei, Fangjun Feng, Tiemei Li, Xiaomeng Pang, Caiping Shi, Lijun Luo, Yang Zhong
Drought is the most serious abiotic stress limiting rice production, and deep root is the key contributor to drought avoidance. However, the genetic mechanism regulating the development of deep roots is largely unknown. In this study, the transcriptomes of 74 root samples from 37 rice varieties, representing the extreme genotypes of shallow or deep rooting, were surveyed by RNA-seq. The 13,242 differentially expressed genes (DEGs) between deep rooting and shallow rooting varieties (H vs. L) were enriched in the pathway of genetic information processing and metabolism, while the 1,052 DEGs between the deep roots and shallow roots from each of the plants (D vs...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28745372/systems-level-organization-of-non-alcoholic-fatty-liver-disease-progression-network
#18
K Shubham, L Vinay, P K Vinod
Non-Alcoholic Fatty Liver Disease (NAFLD) is a complex spectrum of diseases ranging from simple steatosis to Non-Alcoholic Steatohepatitis (NASH) with fibrosis, which can progress to cirrhosis and hepatocellular carcinoma. The pathogenesis of NAFLD is complex, involving crosstalk between multiple organs, cell-types, and environmental and genetic factors. Dysfunction of the adipose tissue plays a central role in NAFLD progression. Here, we analysed transcriptomics data obtained from the Visceral Adipose Tissue (VAT) of NAFLD patients to understand how the VAT metabolism is altered at the genome scale and co-regulated with other cellular processes during the progression from obesity to NASH with fibrosis...
August 22, 2017: Molecular BioSystems
https://www.readbyqxmd.com/read/28710486/comprehensive-transcriptomics-and-proteomics-analyses-of-pollinated-and-parthenocarpic-litchi-litchi-chinensis-sonn-fruits-during-early-development
#19
Wei Liu, Maoshan Chen, Lijun Bai, Zhenhua Zhuang, Chao Fan, Nonghui Jiang, Junsheng Zhao, Shuaipeng Ma, Xu Xiang
Litchi (Litchi chinensis Sonn.) is an important fruit that is widely cultivated in tropical and subtropical areas. In this study, we used RNA-Seq and iTRAQ technologies to compare the transcriptomes and proteomes of pollinated (polLFs) and parthenocarpic (parLFs) litchi fruits during early development (1 day, 2 days, 4 days and 6 days). We identified 4,864 DEGs in polLFs and 3,672 in parLFs, of which 2,835 were shared and 1,051 were specifically identified in parLFs. Compared to po1LFs, 768 DEGs were identified in parLFs...
July 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28693416/whole-transcriptome-analysis-delineates-the-human-placenta-gene-network-and-its-associations-with-fetal-growth
#20
Maya A Deyssenroth, Shouneng Peng, Ke Hao, Luca Lambertini, Carmen J Marsit, Jia Chen
BACKGROUND: The placenta is the principal organ regulating intrauterine growth and development, performing critical functions on behalf of the developing fetus. The delineation of functional networks and pathways driving placental processes has the potential to provide key insight into intrauterine perturbations that result in adverse birth as well as later life health outcomes. RESULTS: We generated the transcriptome-wide profile of 200 term human placenta using the Illumina HiSeq 2500 platform and characterized the functional placental gene network using weighted gene coexpression network analysis (WGCNA)...
July 10, 2017: BMC Genomics
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