Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1987-10-9
pubmed:abstractText
[4-3H][Phe6]somatostatin-14 was used to localize somatostatin binding sites in the rat brain by tritium-film autoradiography. The distribution of binding sites using 0.7 nM [3H]somatostatin confirmed that previously described for iodinated tyrosyl analogues of somatostatin, with highest densities of sites in the cerebral cortex (particularly in laminae III-V), amygdala, lateral septal nucleus, hippocampus and claustrum. Investigation of the pharmacological specificity of the binding sites showed that somatostatin-28, but not its N-terminal dodecapeptide, somatostatin-28 (1-12) or des-Ala1[Gly2,Lys4,Asn5,Thr12,Ser13]somatostatin displaced [3H]somatostatin. Further examination of the binding inhibition characteristics, using a homogenate assay, suggested the presence of two classes of binding sites in the cerebral cortex, hippocampus, midbrain and striatum. The existence of sub-populations of somatostatin binding sites in the rat brain has implications for future studies on the physiological and pharmacological significance of somatostatin receptors in the central nervous system.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0014-2999
pubmed:author
pubmed:issnType
Print
pubmed:day
26
pubmed:volume
138
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
327-33
pubmed:dateRevised
2003-11-14
pubmed:meshHeading
pubmed:year
1987
pubmed:articleTitle
Autoradiographic visualization of binding sites for [3H]somatostatin in the rat brain.
pubmed:publicationType
Journal Article