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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
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pubmed:dateCreated |
1987-10-9
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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.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Octreotide,
http://linkedlifedata.com/resource/pubmed/chemical/Receptors, Neurotransmitter,
http://linkedlifedata.com/resource/pubmed/chemical/Receptors, Somatostatin,
http://linkedlifedata.com/resource/pubmed/chemical/Somatostatin,
http://linkedlifedata.com/resource/pubmed/chemical/Tritium
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pubmed:status |
MEDLINE
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pubmed:month |
Jun
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pubmed:issn |
0014-2999
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
26
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pubmed:volume |
138
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
327-33
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pubmed:dateRevised |
2003-11-14
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pubmed:meshHeading |
pubmed-meshheading:2887442-Animals,
pubmed-meshheading:2887442-Autoradiography,
pubmed-meshheading:2887442-Brain Chemistry,
pubmed-meshheading:2887442-Cerebral Cortex,
pubmed-meshheading:2887442-Hippocampus,
pubmed-meshheading:2887442-Octreotide,
pubmed-meshheading:2887442-Rats,
pubmed-meshheading:2887442-Receptors, Neurotransmitter,
pubmed-meshheading:2887442-Receptors, Somatostatin,
pubmed-meshheading:2887442-Somatostatin,
pubmed-meshheading:2887442-Tritium
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pubmed:year |
1987
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pubmed:articleTitle |
Autoradiographic visualization of binding sites for [3H]somatostatin in the rat brain.
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pubmed:publicationType |
Journal Article
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