Linked Life Data

16887274

Source:http://linkedlifedata.com/resource/pubmed/id/16887274

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2006-9-25
pubmed:abstractText
Understanding the molecular biology of noise trauma is vital to developing effective and timely interventions. In a model of explosion-mediated impulse noise injury, differential gene expression was studied in whole rat cochlea preparations at 3 and 24 h following the exposure. We developed a technique using mRNA from a single cochlea on each oligonucleotide microarray to avoid pooling of mRNA samples. Application of a conservative statistical analysis approach resulted in the identification of 61 differentially expressed genes. Within 3 h after the exposure, there was an up-regulation of immediate early genes, mainly transcription factors and genes involved in the tissue's response to oxidative stress. No genes were found to be significantly down-regulated. At 24 h following the exposure, up-regulated genes included members of inflammatory and antioxidant pathways and one gene involved in glutathione metabolism was down-regulated. A subset of genes was confirmed by real-time reverse transcriptase-polymerase chain reaction (RT-PCR). The present study demonstrates the power of the microarray technique in providing a global view of the gene regulation following noise exposure, and in identifying genes that may be mechanistically important in hearing loss, and thereby serve as a basis for the development of therapeutic interventions.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0306-4522
pubmed:author
pubmed:issnType
Print
pubmed:day
13
pubmed:volume
142
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
425-35
pubmed:meshHeading
pubmed:year
2006
pubmed:articleTitle
Differential gene expression in the rat cochlea after exposure to impulse noise.
pubmed:affiliation
Center for Hearing and Communication Research, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden. mette.kirkegaard@ki.se
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't