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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
11
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pubmed:dateCreated |
1983-1-19
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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.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Alprenolol,
http://linkedlifedata.com/resource/pubmed/chemical/Dihydroalprenolol,
http://linkedlifedata.com/resource/pubmed/chemical/Hydroxydopamines,
http://linkedlifedata.com/resource/pubmed/chemical/Norepinephrine,
http://linkedlifedata.com/resource/pubmed/chemical/Quinuclidines,
http://linkedlifedata.com/resource/pubmed/chemical/Quinuclidinyl Benzilate,
http://linkedlifedata.com/resource/pubmed/chemical/Receptors, Adrenergic,
http://linkedlifedata.com/resource/pubmed/chemical/Receptors, Adrenergic, beta,
http://linkedlifedata.com/resource/pubmed/chemical/Receptors, Cholinergic,
http://linkedlifedata.com/resource/pubmed/chemical/Receptors, Muscarinic
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pubmed:status |
MEDLINE
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pubmed:month |
Sep
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pubmed:issn |
0024-3205
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
13
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pubmed:volume |
31
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1161-70
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:6292605-Alprenolol,
pubmed-meshheading:6292605-Animals,
pubmed-meshheading:6292605-Dihydroalprenolol,
pubmed-meshheading:6292605-Hydroxydopamines,
pubmed-meshheading:6292605-Male,
pubmed-meshheading:6292605-Norepinephrine,
pubmed-meshheading:6292605-Quinuclidines,
pubmed-meshheading:6292605-Quinuclidinyl Benzilate,
pubmed-meshheading:6292605-Rats,
pubmed-meshheading:6292605-Receptors, Adrenergic,
pubmed-meshheading:6292605-Receptors, Adrenergic, beta,
pubmed-meshheading:6292605-Receptors, Cholinergic,
pubmed-meshheading:6292605-Receptors, Muscarinic,
pubmed-meshheading:6292605-Spleen,
pubmed-meshheading:6292605-Time Factors
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pubmed:year |
1982
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pubmed:articleTitle |
Characterization of postsynaptic beta-adrenergic receptors and presynaptic muscarinic cholinergic receptors in the rat spleen.
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pubmed:publicationType |
Journal Article,
In Vitro,
Research Support, U.S. Gov't, P.H.S.
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