rdf:type |
|
lifeskim:mentions |
|
pubmed:issue |
4
|
pubmed:dateCreated |
1991-9-17
|
pubmed:abstractText |
The effect of bilateral colchicine lesions of the nucleus basalis magnocellularis (NBM) on agonist-stimulated phosphoinositide (PI) hydrolysis was examined in cortical slices 1, 3, or 14 months after surgery. Colchicine lesions resulted in a loss of acetylcholinesterase staining in the cortex which recovered to control levels by 14 months. Choline acetyltransferase activity in the cortex was decreased by 43% one month after lesioning, but returned to control levels by 3 months. In vitro stimulation with carbachol produced a concentration-dependent increase in PI hydrolysis, which was enhanced 3 and 14 months after NBM lesions. Norepinephrine and quisqualate-stimulated PI hydrolysis was also enhanced 14 months after NBM lesions. These results suggest a slow up-regulation of postsynaptic receptor function following presynaptic loss of transmitter.
|
pubmed:language |
eng
|
pubmed:journal |
|
pubmed:citationSubset |
IM
|
pubmed:chemical |
|
pubmed:status |
MEDLINE
|
pubmed:month |
Apr
|
pubmed:issn |
0361-9230
|
pubmed:author |
|
pubmed:issnType |
Print
|
pubmed:volume |
26
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
657-62
|
pubmed:dateRevised |
2006-11-15
|
pubmed:meshHeading |
pubmed-meshheading:1651150-Acetylcholinesterase,
pubmed-meshheading:1651150-Animals,
pubmed-meshheading:1651150-Basal Ganglia,
pubmed-meshheading:1651150-Carbachol,
pubmed-meshheading:1651150-Cerebral Cortex,
pubmed-meshheading:1651150-Choline O-Acetyltransferase,
pubmed-meshheading:1651150-Colchicine,
pubmed-meshheading:1651150-Hydrolysis,
pubmed-meshheading:1651150-Male,
pubmed-meshheading:1651150-Norepinephrine,
pubmed-meshheading:1651150-Phosphatidylinositols,
pubmed-meshheading:1651150-Quisqualic Acid,
pubmed-meshheading:1651150-Rats,
pubmed-meshheading:1651150-Rats, Inbred F344,
pubmed-meshheading:1651150-Time Factors
|
pubmed:year |
1991
|
pubmed:articleTitle |
Long-term changes in phosphoinositide hydrolysis following colchicine lesions of the nucleus basalis magnocellularis.
|
pubmed:affiliation |
Laboratory of Molecular and Integrative Neuroscience, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC 27709.
|
pubmed:publicationType |
Journal Article,
In Vitro
|