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Brain transcriptional and epigenetic associations with the autistic phenotype

ABSTRACT: This SuperSeries is composed of the SubSeries listed below.

ORGANISM(S): Homo sapiens

PROVIDER: GSE38609 | GEO | 2012/08/15

SECONDARY ACCESSION(S): PRJNA168210

REPOSITORIES: GEO

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Brain transcriptional and epigenetic associations with the autistic phenotype (methylation data)

Project description:Autism is a common neurodevelopmental syndrome. Numerous rare genetic etiologies are reported; most cases are idiopathic. To uncover important gene dysregulation in autism, we analyzed carefully selected idiopathic autistic and control cerebellar and BA19 (occipital) brain tissues using high-resolution whole genome gene expression and DNA methylation microarrays. No changes in DNA methylation were identified in autistic brain but gene expression abnormalities in two areas of metabolism were apparent: down-regulation of genes of mitochondrial oxidative phosphorylation and of protein translation. We also found associations between specific behavioral domains of autism and specific brain gene expression modules related to myelin/myelination, inflammation/immune response and purinergic signaling. This work highlights two largely unrecognized molecular pathophysiological themes in autism and suggests differing molecular bases for autism behavioral endophenotypes. In this set of DNA methylation data, 9 cerebellar autism, 9 cerebellar control, 8 BA19 (occipital cortex) autism, and 8 BA19 control samples were used. Samples are labeled with a B followed by a unique number and letter identifying the subject and brain region, followed by an optional hyphenated number indicating the technical replicates performed on sample 1.

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Brain transcriptional and epigenetic associations with the autistic phenotype (expression data)

Project description:Autism is a common neurodevelopmental syndrome. Numerous rare genetic etiologies are reported; most cases are idiopathic. To uncover important gene dysregulation in autism we analyzed carefully selected idiopathic autistic and control cerebellar and BA19 (occipital) brain tissues using high resolution whole genome gene expression and DNA methylation microarrays. No changes in DNA methylation were identified in autistic brain but gene expression abnormalities in two areas of metabolism were apparent: down-regulation of genes of mitochondrial oxidative phosphorylation and of protein translation. We also found associations between specific behavioral domains of autism and specific brain gene expression modules related to myelin/myelination, inflammation/immune response and purinergic signaling. This work highlights two largely unrecognized molecular pathophysiological themes in autism and suggests differing molecular bases for autism behavioral endophenotypes.

2012-08-15 | GSE38322 | GEO

Brain transcriptional and epigenetic associations with the autistic phenotype (methylation data)

2012-08-15 | GSE38608 | GEO