Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
11
pubmed:dateCreated
1983-1-19
pubmed:abstractText
The beta-adrenergic and muscarinic cholinergic receptors in the splenic homogenates of control and 6-hydroxydopamine (6-OHDA) treated rats were characterized. The specific binding of [3H]dihydroalprenolol (DHA) and [3H]quinuclidinyl benzilate (QNB) in the rat spleen were saturable and of high affinity and showed pharmacological specificity of splenic beta-adrenergic and muscarinic cholinergic receptors. Following 6-OHDA treatment, the Bmax value for specific [3H](-)DHA binding to the rat spleen was significantly increased by 26 percent and 22 percent compared to control at 2 and 3 weeks without a change in the Kd. In contrast, there was a 38 percent decrease in the Bmax for [3H](-)QNB in the 6-Ohda treated rat spleen at 2 and 3 weeks respectively without a change in the Kd. The Bmax value at 5 weeks was significantly greater than that at 2 or 3 weeks. The splenic norepinephrine (NE) concentration was markedly reduced by the 6-OHDA treatment at 1 to 3 weeks, while there was a significant recovery in the splenic NE concentration at 5 weeks. Thus, our results strongly suggest that we are biochemically localizing muscarinic cholinergic receptors on the sympathetic nerves of the rat spleen and that the beta-adrenergic receptors of the spleen are localized postsynaptically.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0024-3205
pubmed:author
pubmed:issnType
Print
pubmed:day
13
pubmed:volume
31
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1161-70
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1982
pubmed:articleTitle
Characterization of postsynaptic beta-adrenergic receptors and presynaptic muscarinic cholinergic receptors in the rat spleen.
pubmed:publicationType
Journal Article, In Vitro, Research Support, U.S. Gov't, P.H.S.