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Profiling Transcriptomic Alterations in Postmortem Prefrontal Cortex Tissues of Individuals with Alcohol Use Disorders

ABSTRACT: Analysis of transcriptiomic alternations related with alcohol use disorders (AUDs). The hypothesis is that chronic alcohol consumption might alter genome-wide gene expression patterns. The results suggest that differential gene expression in the prefrontal cortex is implicated in neuroadaptations to alcohol. Total RNAs were extracted from postmortem prefrontal cortex tissues from 23 AUD cases and 23 matched controls. Both AUD cases and matched controls were assessed with DSM-IV.

ORGANISM(S): Homo sapiens

SUBMITTER: Huiping Zhang

PROVIDER: E-GEOD-49376 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Sex-biased methylome and transcriptome in human prefrontal cortex.

Xu Hongqin H Wang Fan F Liu Yawen Y Yu Yaqin Y Gelernter Joel J Zhang Huiping H

Human molecular genetics 20131024 5

Brain function and cognitive performance differ between men and women in some measures. The phenotypic variation may be partially due to sex differences in epigenomes and transcriptomes in specific brain regions [e.g. the prefrontal cortex (PFC)]. Genome-wide DNA methylation and gene expression were examined in postmortem PFC of 32 males and 14 females (all were Caucasians) using Illumina's 450K Methylation and HT-12 v4 Gene Expression BeadChips, respectively. Multiple linear regression, Pearson ...[more]

PMID: 24163133

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Profiling Methylomic Alterations in Postmortem Prefrontal Cortex Tissues of Individuals with Alcohol Use Disorders

Project description:Analysis of methylomic alternations related with alcohol use disorders (AUD). The hypothesis is that chronic alcohol consumption might alter genome-wide DNA methylation patterns. The results suggest that differential DNA methylation might be invovled in neuradaptations to alcohol. Genomic DNA was extraced from postmortem prefrontal cortex tissues of 23 AUD cases and 23 matched controls. Both AUD cases and matched controls are assessed with DSM-IV

2013-11-06 | E-GEOD-49393 | biostudies-arrayexpress

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Project description:Excessive alcohol consumption is a leading cause of preventable death worldwide. Neurobiological mechanisms associated with alcohol use disorder (AUD) remain insufficiently understood. Here, we provide RNA-sequencing data generated in nucleus accumbent and dorsolateral prefrontal cortex, from 114 deceased individuals: 58 AUD cases, 56 non-AUD controls. DNA methylation data on many of these same individuals is available (see GEO accession number GSE252501).

2024-01-19 | GSE253155 | GEO

Brain Proteomic Atlas of Alcohol Use Disorder in Adult Males

Project description:Alcohol use disorder (AUD) affects transcriptomic, epigenetic and proteomic expression in several organs including the brain. Multi-omic analyses of the brain from individuals with AUD to date lack a comprehensive analysis of protein alterations in the multiple brain regions that underlie neuroadaptations occurring in AUD. We performed quantitative proteomic analysis using liquid chromatography-tandem mass spectrometry (LC-MS/MS) analysis of human post-mortem tissue from brain regions that play a key role in the development and maintenance of AUD: amygdala (AMG), hippocampus (HIPP), hypothalamus (HYP), nucleus accumbens (NAc), prefrontal cortex (PFC) and ventral tegmental area (VTA). Brain tissues analyzed were from individuals with AUD (n = 11) and matched controls (n = 16).

2023-10-24 | PXD040884 | Pride

Profiling of mRNA transcriptomic changes using RNA-seq in postmortem prefrontal cortex of subjects with alcohol use disorder

Project description:Purpose: The goal of this study to examine mRNA transcriptomic changes in reward-related brain regions of subjects with alcohol use disorder. Methods: Total RNAs were extracted from postmortem prefrontal cortex of 12 AUD and 12 control subjects. rRNA depletion RNA sequencing was performed and the sequence reads were processed using the bulk RNA-seq processing pipeline Pipeliner workflow (Federico et al. Front Genet 2019; 10, 614). AUD-associated mRNA transcriptomic changes were analyzed by the Limma-Voom method. Results: Differentially expressed mRNAs (absolute FC>2.0 & P<0.05) were identified in postmortem prefrontal cortex of subjects with alcohol use disorder (AUD). Chronic alcohol consumption may alter mRNA transcriptome profiles in reward-related brain regions, resulting in alcohol-induced neuroadaptations.

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Project description:Alcohol use disorder (AUD) is a life-threatening disease characterized by compulsive drinking, cognitive deficits, and social impairment that continue despite negative consequences, which are driven by dysfunction of cortical areas, such as the orbitofrontal cortex (OFC), that normally balances decisions related to reward and risk. In this study, proteomics and machine learning analysis of post-mortem OFC brain samples collected from individuals with AUD revealed dysregulation of presynaptic (e.g., AP2A1) and mitochondrial proteins that predicted the occurrence and severity of AUD. Alcohol-sensitive OFC proteins also mapped to abnormal social behaviors and interactions. Validation using reverse genetics, we found that prefrontal Ap2a1 regulates alcohol drinking in genetically diverse mouse strains. Furthermore, we demonstrated sexual dimorphism in human OFC proteins that regulate extracellular matrix structure and signaling. Together, these findings highlight the impact of excessive alcohol consumption on the human OFC proteome and identify important cross-species cortical mechanisms underlying AUD.

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Profiling Transcriptomic Alterations in Postmortem Prefrontal Cortex Tissues of Individuals with Alcohol Use Disorders

Project description:Analysis of transcriptiomic alternations related with alcohol use disorders (AUDs). The hypothesis is that chronic alcohol consumption might alter genome-wide gene expression patterns. The results suggest that differential gene expression in the prefrontal cortex is implicated in neuroadaptations to alcohol.

2013-11-06 | GSE49376 | GEO

Alcohol use disorder-associated DNA methylation differences in nucleus accumbens and dorsolateral prefrontal cortex

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2024-01-18 | GSE252501 | GEO

Profiling Methylomic Alterations in Postmortem Prefrontal Cortex Tissues of Individuals with Alcohol Use Disorders

2013-11-06 | GSE49393 | GEO

Cell-type brain-region specific changes in prefrontal cortex of mouse model of alcohol dependence

Project description:The prefrontal cortex is a crucial regulator of escalation of alcohol drinking, dependence, and other behavioral criteria associated with AUD. Comprehensive identification of cell-type specific transcriptomic changes in alcohol dependence will improve our understanding of mechanisms mediating the escalation of alcohol use and will refine targets for therapeutic development. We performed single nucleus RNA sequencing (snRNA-seq) on ~150,000 single nuclei from the medial prefrontal cortex (mPFC) obtained from C57BL/6J mice exposed to the chronic intermittent ethanol exposure (CIE) paradigm which models phenotypes associated with alcohol dependence. Gene co-expression network analysis and differential expression analysis identified highly dysregulated co-expression networks in multiple cell types. Here, we present a comprehensive atlas of cell-type specific alcohol dependence related gene expression changes in the mPFC.

2024-01-10 | GSE233763 | GEO

Gene expression profiling of renal medulla and cortex during postnatal development

Project description:The aim of this study is to establish a comprehensive transcriptome atlas that enables identification of key molecular pathways and morphogenic events regulating postnatal renal medulla/papillary and cortex development. To achieve this, a microarray expression profiling was performed on postnatal day 0-90 renal medulla and cortex obtained from CD1 male mice. Renal medulla and cortex were regionally dissected from postnatal day 0-90 CD1 male mice, and total RNA extracted for microarray expression profiling. Each time point consists of RNA pooled from 4 biological replicates, and an Agilent Bioanalyser test was performed to assess RNA integrity prior to sample pooling. The microarray data was analysed with the use of lumi and limma packages (Bioconductor) in R.

2016-01-12 | E-GEOD-72128 | biostudies-arrayexpress

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