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MRNA expression in SIDS

ABSTRACT: The purpose of this study was to investigate gene expression in SIDS cases and controls, in order to uncover genes that are differentially expressed in the two groups. Tissue from brain, heart and liver from 15 SIDS cases and 15 controls were included in this study, and mRNA expression was determined using the Illumina whole genome gene expression DASL HT assay

ORGANISM(S): Homo sapiens

PROVIDER: GSE70422 | GEO | 2016/03/01

SECONDARY ACCESSION(S): PRJNA288607

REPOSITORIES: GEO

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mRNA expression in SIDS

Project description:The purpose of this study was to investigate gene expression in SIDS cases and controls, in order to uncover genes that are differentially expressed in the two groups. Tissue from brain, heart and liver from 15 SIDS cases and 15 controls were included in this study, and mRNA expression was determined using the Illumina whole genome gene expression DASL HT assay WGDASL_HT ASSAY 15018210_D

2016-03-01 | E-GEOD-70422 | biostudies-arrayexpress

mRNA expression in SIDS

Project description:Genetic predispositions in cases suffering sudden unexpected infant death have been a research focus worldwide the last decade. Despite large efforts there is still uncertainty concerning the molecular pathogenesis of these deaths. With genetic technology in constant development the possibility of an alternative approach into this research field have become available, like mRNA expression studies. Methods: In this study we investigated mRNA gene expression in 14 cases that died suddenly and unexpectedly from infection without a history of severe illness prior to death. The control group included eight accidents, two cases of natural death, one undetermined, one case of medical malpractice and two homicides. The study included tissue from liver, heart and brain. The mRNA expression was determined using Illumina whole genome gene expression DASL HT assay. Results: From the array, 19 genes showed altered expression in the infectious deaths compared to controls. The heart was the organ were most genes showed altered expression: 15 genes showed different mRNA expression compared to the control group. Conclusion: Down-regulation of KCNE5 in heart tissue from cases of infectious death was of particular interest. Variants of KCNE5 are associated with Brugada syndrome KCNE5 gene is known to give increased risk of cardiac arrhythmia and sudden death, and could be responsible for the fatal outcome in the group of infectious death.

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