Linked Life Data

2565195

Source:http://linkedlifedata.com/resource/pubmed/id/2565195

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1989-6-5
pubmed:abstractText
1. Presynaptic alpha 2-adrenoceptor mechanisms in electrically stimulated longitudinal muscles of ilea isolated from 3, 10, 20 and 47 week-old guinea pigs were studied by analysis of the concentration-response curves of noradrenaline, a full agonist, and clonidine, a partial agonist, and the Scatchard plot of specific binding of [3H]-p-aminoclonidine to synaptosomal fractions from the longitudinal muscle of guinea pig ileum. 2. The pD2 value of noradrenaline and the maximum contraction induced by clonidine increased with age from 3 to 20 weeks and there after decreased to 47 weeks, while the pA2 value of yohimbine against noradrenaline did not alter with age. 3. The capacity of the maximum binding sites of [3H]-p-aminoclonidine increased with increasing age (3-20 weeks), while the dissociation constant (Kd) of [3H]-p-aminoclonidine did not change during the same period. 4. The changes in the presynaptic alpha 2-adrenoceptor mechanisms with age are considered to be due to the change in the total concentration of presynaptic of alpha 2-adrenoceptors.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0742-8413
pubmed:author
pubmed:issnType
Print
pubmed:volume
92
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
419-23
pubmed:dateRevised
2007-7-23
pubmed:meshHeading
pubmed:year
1989
pubmed:articleTitle
Effect of aging on presynaptic alpha 2-adrenoceptor mechanisms in guinea pig ileum.
pubmed:affiliation
Department of Chemical Pharmacology, Toho University School of Pharmaceutical Sciences, Chiba, Japan.
pubmed:publicationType
Journal Article, In Vitro, Research Support, Non-U.S. Gov't