Comment[ArrayExpressAccession] E-GEOD-37458 MAGE-TAB Version 1.1 Public Release Date 2012-11-14 Investigation Title Expression data from WT and VAChT KDHOM ventricles Comment[Submitted Name] Expression data from WT and VAChT KDHOM ventricles Comment[AEExperimentDisplayName] Transcription profiling by array of ventricles from mice with homozygous knockdown expression of the vesicular acetylcholine transporter (VAChT) and wild type controls Experiment Description VAChT KDHOM mice have a 70% decrease in the vesicular acetylcholine transporter (VAChT) and this leads to a systemic decrease in ACh release and cardiac dysfunction. We used this microarray to determine whether there were transcriptional alterations in the hearts of mutant mice as a result of this long-term decrease in cholinergic tone. We isolated whole hearts from 3-month-old WT and VAChT KD mice and used them for RNA extraction and hybridization on Affymetrix microarrays. We sought to obtain homogenous populations for each sample and, as such, pooled together two RNA samples to generate one microarray sample. Term Source Name ArrayExpress EFO Term Source File http://www.ebi.ac.uk/arrayexpress/ http://www.ebi.ac.uk/efo Person Last Name Carter Marco A.M. Robert Person First Name David Prado Gros Person Mid Initials E Person Email dcarter@robarts.ca Person Affiliation Robarts Research Institute Person Address London Regional Genomics Centre, Robarts Research Institute, 100 Perth Drive, London, ON, Canada Person Roles submitter Protocol Name P-GSE37458-1 P-GSE37458-6 P-GSE37458-3 P-GSE37458-8 P-GSE37458-7 P-GSE37458-2 P-GSE37458-4 P-GSE37458-5 Protocol Description ID_REF = VALUE = RMA signal intensity 5.5 ug of single stranded cDNA was hybridized for 16 hr at 45C on GeneChip Mouse Gene 1.0 ST Arrays. GeneChips were washed and stained in the Affymetrix Fluidics Station 450. WT and VAChT KD mice were aged to 3 months of age before hearts were excised for RNA extraction. The data were analyzed with Partek Genomcis Suite using the RMA normalization method GeneChips were scanned using the Affymetrix GeneChip Scanner 3000 7G. No treatments were applied to the animals or tissue. RNA was extracted using the Fatty and Fibrous Tissue RNA Extraction Kit (Bio-rad) Biotin end labeled single strand cDNA was prepared according to the Affymetrix GeneChip Whole Transcript (WT) Sense Target Labeling Assay Manual Protocol Type bioassay_data_transformation hybridization grow feature_extraction image_aquisition specified_biomaterial_action nucleic_acid_extraction labeling Experimental Factor Name genotype Experimental Factor Type genotype Publication Title An analysis of the myocardial transcriptome in a mouse model of cardiac dysfunction with decreased cholinergic neurotransmission. Publication Author List Roy A, Lara A, Guimar�es D, Pires R, Gomes ER, Carter DE, Gomez MV, Guatimosim S, Prado VF, Prado MA, Gros R PubMed ID 22768193 Publication DOI 10.1371/journal.pone.0039997 Comment[SecondaryAccession] GSE37458 Comment[GEOReleaseDate] 2012-11-14 Comment[ArrayExpressSubmissionDate] 2012-04-20 Comment[GEOLastUpdateDate] 2012-11-14 Comment[AEExperimentType] transcription profiling by array SDRF File E-GEOD-37458.sdrf.txt