Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1982-5-12
pubmed:abstractText
The distribution of immunoreactive dynorphin (ir-dyn) has been determined in various regions of human brain and pituitary by use of a highly specific radioimmunoassay. The concentrations of ir-dyn in the substantia nigra (24.5 pmol/g) and hypothalamus were among the highest in the 26 brain areas examined. Substantial amounts were also measurable in other extrapyramidal structures such as the caudate nucleus, pallidus and putamen. Lower concentrations of ir-dyn were detected in the amygdala, hippocampus, periaqueductal gray matter, colliculi, pons, medulla and area postrema, but only low amounts were found in the posterior lobe of the pituitary, while no ir-dyn was detectable in the anterior lobe. By gel permeation chromatography the brain immunoreactivity was shown to consist of 3-4 peaks of apparent molecular weights of about 12,000, 6000, 1800 and less than 1000. It was possible to demonstrate the high opioid potency of 2 of these peaks in the guinea-pig ileum longitudinal muscle bioassay after purification by immunoprecipitation. A comparison of the distribution pattern of ir-dyn revealed some parallels with enkephalin, whereas the distribution of ir-beta-endorphin is quite different.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0006-8993
pubmed:author
pubmed:issnType
Print
pubmed:day
4
pubmed:volume
233
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
65-74
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1982
pubmed:articleTitle
Immunoreactive dynorphin in human brain and pituitary.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't