Linked Life Data

12486601

Source:http://linkedlifedata.com/resource/pubmed/id/12486601

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2002-12-17
pubmed:abstractText
Sensory cortex in the rat undergoes rapid postnatal development, especially following the onset of sensory function during so-called "critical periods." To investigate potential mechanisms in the auditory forebrain involving different NMDA receptor subunits, we have used in situ hybridization to determine expression patterns of NR2A and NR2B mRNA at postnatal days 4, 10, 13, 18, 25, and adult. In auditory cortex, NR2A mRNA expression is initially weak but increases rapidly over approximately 2 weeks. NR2B mRNA levels are initially high and remain high. For both subunits, expression tends to be highest in superficial layers of the cortex (except layer 1). Expression is weaker in the auditory thalamus (medial geniculate). Initially, NR2A mRNA expression is very low, whereas NR2B mRNA expression is moderate; both levels increase over approximately 2 weeks. Among medial geniculate subdivisions, NR2A mRNA expression occurs preferentially in the medial division, whereas NR2B mRNA expression is strongest in the ventral division. For auditory cortex and thalamus, NR2A and NR2B mRNA expression peaks about 1 week after the onset of hearing before declining slightly into adulthood. The heterogeneous distribution of NMDAR subunit mRNA throughout development may play a role in auditory forebrain development and function.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
1525-3961
pubmed:author
pubmed:issnType
Print
pubmed:volume
3
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
479-87
pubmed:dateRevised
2011-10-26
pubmed:meshHeading
pubmed:year
2002
pubmed:articleTitle
Postnatal development of NR2A and NR2B mRNA expression in rat auditory cortex and thalamus.
pubmed:affiliation
Department of Neurobiology and Behavior, University of California, Irvine, Irvine, CA 92697, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't