Linked Life Data

15834447

Source:http://linkedlifedata.com/resource/pubmed/id/15834447

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2005-4-18
pubmed:abstractText
Histamine-synthesizing neurons in the brain may play an important role in cognition, and a histaminergic deficit has been found in Alzheimer's disease (AD). The AD medication tacrine was previously shown to inhibit some forms of rodent histamine-N-methyltransferase (HNMT), but the effects of AD drugs have not been investigated on human HNMT activity. Presently, the effects of tacrine and galanthamine (another AD medication) were studied on the activity of several forms of human and rat HNMT. Tacrine (0.01-10 microM) inhibited both human and rat HNMT activity in a concentration-dependent manner, but was less potent on both human embryonic kidney and recombinant human brain HNMT than on rat kidney HNMT (IC50 values were 0.46 and 0.70 microM vs. 0.29 microM, respectively). Galanthamine (up to 10 microM) did not influence the activity of rat kidney or human HNMT. Tacrine, but not galanthamine, may achieve brain levels sufficient to influence histamine metabolism in some patients treated for AD.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0379-0355
pubmed:author
pubmed:issnType
Print
pubmed:volume
27
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
161-5
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
2005
pubmed:articleTitle
Actions of tacrine and galanthamine on histamine-N-methyltransferase.
pubmed:affiliation
Center for Neuropharmacology and Neuroscience, Albany Medical College, New York 12208, USA.
pubmed:publicationType
Journal Article, In Vitro, Research Support, U.S. Gov't, P.H.S., Research Support, N.I.H., Extramural