Linked Life Data

9379838

Source:http://linkedlifedata.com/resource/pubmed/id/9379838

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1997-11-10
pubmed:abstractText
The suprachiasmatic nucleus (SCN), a circadian oscillator, contains various peptides arranged in the compartment-specific manner. Somatostatin (SS) and substance P (SP), a peptide derived from preprotachykinin A (PPT-A), are expressed in neurons in the intermediate zone, a narrow area between the major dorsomedial and ventrolateral subdivisions. In the present study, we examined the possibility of co-localization of SS and SP in the SCN by a double-labeling in situ hybridization method using 35S-labeled and digoxigenin-labeled cRNA probes. In the SCN, most of preprosomatostatin (PPSS) mRNA-containing neurons expressed PPT-A mRNA (86%) and, in turn, almost all preprotachykinin A (PPT-A) mRNA-expressing neurons expressed PPSS mRNA signals (97%). Both PPSS and PPT-A mRNAs were also detected in the cerebral cortex and the caudate-putamen, however, their co-existence was extremely rare (< 4%) in these regions. Since the pharmacological effects of SS and SP are similar to that of the light pulses exposed on animals under constant darkness, the co-release of peptides might be an important process for entraining the circadian clock in the SCN.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0169-328X
pubmed:author
pubmed:issnType
Print
pubmed:volume
48
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
159-63
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1997
pubmed:articleTitle
Co-localization of preprosomatostatin mRNA and preprotachykinin A mRNA in neurons of the rat suprachiasmatic nucleus.
pubmed:affiliation
Department of Anatomy and Brain Science, Kobe University School of Medicine, Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't