Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2000-1-4
pubmed:abstractText
MAO-A and -B are key isoenzymes that degrade biogenic and dietary amines. MAO-A preferentially oxidizes 5-HT and NE, whereas MAO-B preferentially oxidizes PEA. However, the substrate and inhibitor selectivity overlap depending on the concentration of the enzyme and substrate. A line of transgenic mice has been generated in which the gene that encodes MAO-A is disrupted. MAO-A KO mice have elevated brain levels of 5-HT, NE and DA and manifest aggressive behavior similar to men with a deletion of MAO-A. We have also generated mice deficient in MAO-B by homologous recombination. Interestingly, MAO-B KO mice do not exhibit aggression and only levels of PEA are increased. MAO-B-deficient mice are resistant to the Parkinsongenic neurotoxin, 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine. Thus, studies of MAO-A and -B KO mice have clearly shown that MAO-A and -B have distinct functions in neurotransmitter metabolism and behavior. MAO KO mice are valuable models for investigating the role of monoamines in aggression and neurodegenerative and stress-related disorders.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
1216-8068
pubmed:author
pubmed:issnType
Print
pubmed:volume
7
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
235-46
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1999
pubmed:articleTitle
MAO-A and -B gene knock-out mice exhibit distinctly different behavior.
pubmed:affiliation
Department of Molecular Pharmacology and Toxicology, University of Southern California, School of Pharmacy, Los Angeles 90033, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Review, Research Support, Non-U.S. Gov't