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http://purl.uniprot.org/citations/31840824http://www.w3.org/1999/02/22-rdf-syntax-ns#typehttp://purl.uniprot.org/core/Journal_Citation
http://purl.uniprot.org/citations/31840824http://www.w3.org/2000/01/rdf-schema#comment"

Background

Alcohol exposure alters the expression of a large number of genes, resulting in neuronal adaptions and neuronal loss, but the underlying mechanisms are largely unknown. miRNAs are gene repressors that are abundant in the brain. A recent study identified ~ 35 miRNAs that are up-regulated in the prefrontal cortex of human alcoholics and predicted to target genes that are down-regulated in the same region. Although interactions between alcohol-responsive miRNAs and their target genes have been predicted, few studies have validated these predictions.

Methods

We measured the expression of GABAA α5 mRNA in the prefrontal and motor cortices of human alcoholics and matched controls using real-time PCR. The expression of miR-203 was measured in a subset of these cases. The predicted interaction of miR-203 and GABRA5 was validated for miR-203 using a luciferase reporter assay.

Results

In both frontal and motor cortices, the expression of GABAA α5 was significantly lower in cirrhotic alcoholics compared with controls. Further, the pattern of expression between the groups was significantly different between males and females. The expression of miR-203 was higher in the prefrontal cortex of cirrhotic alcoholics compared with controls and uncomplicated alcoholics. These differences were particularly marked in female cases. Cotransfection of GABRA5 with miR-203 in HEK293T cells reduced luciferase reporter activity.

Conclusion

There are sex differences in the expression of GABAA α5 and miR-203 in the brain of human alcoholics which are particularly marked in alcoholics with cirrhosis of the liver. Further, miR-203 may mediate the changes in expression of this GABAA receptor isoform that is brought about by alcohol exposure."xsd:string
http://purl.uniprot.org/citations/31840824http://purl.org/dc/terms/identifier"doi:10.1111/acer.14266"xsd:string
http://purl.uniprot.org/citations/31840824http://purl.uniprot.org/core/author"Dodd P.R."xsd:string
http://purl.uniprot.org/citations/31840824http://purl.uniprot.org/core/author"Colson N."xsd:string
http://purl.uniprot.org/citations/31840824http://purl.uniprot.org/core/author"Lewohl J.M."xsd:string
http://purl.uniprot.org/citations/31840824http://purl.uniprot.org/core/author"Janeczek P."xsd:string
http://purl.uniprot.org/citations/31840824http://purl.uniprot.org/core/date"2020"xsd:gYear
http://purl.uniprot.org/citations/31840824http://purl.uniprot.org/core/name"Alcohol Clin Exp Res"xsd:string
http://purl.uniprot.org/citations/31840824http://purl.uniprot.org/core/pages"423-434"xsd:string
http://purl.uniprot.org/citations/31840824http://purl.uniprot.org/core/title"Sex Differences in the Expression of the alpha5 Subunit of the GABApisub>Api/sub> Receptor in Alcoholics with and without Cirrhosis of the Liver."xsd:string
http://purl.uniprot.org/citations/31840824http://purl.uniprot.org/core/volume"44"xsd:string
http://purl.uniprot.org/citations/31840824http://www.w3.org/2004/02/skos/core#exactMatchhttp://purl.uniprot.org/pubmed/31840824
http://purl.uniprot.org/citations/31840824http://xmlns.com/foaf/0.1/primaryTopicOfhttps://pubmed.ncbi.nlm.nih.gov/31840824
http://purl.uniprot.org/uniprot/#_B4DFX3-mappedCitation-31840824http://www.w3.org/1999/02/22-rdf-syntax-ns#objecthttp://purl.uniprot.org/citations/31840824
http://purl.uniprot.org/uniprot/#_B4E1A2-mappedCitation-31840824http://www.w3.org/1999/02/22-rdf-syntax-ns#objecthttp://purl.uniprot.org/citations/31840824
http://purl.uniprot.org/uniprot/#_P31644-mappedCitation-31840824http://www.w3.org/1999/02/22-rdf-syntax-ns#objecthttp://purl.uniprot.org/citations/31840824
http://purl.uniprot.org/uniprot/P31644http://purl.uniprot.org/core/mappedCitationhttp://purl.uniprot.org/citations/31840824
http://purl.uniprot.org/uniprot/B4E1A2http://purl.uniprot.org/core/mappedCitationhttp://purl.uniprot.org/citations/31840824
http://purl.uniprot.org/uniprot/B4DFX3http://purl.uniprot.org/core/mappedCitationhttp://purl.uniprot.org/citations/31840824