title: Association of monoamine oxidase A gene polymorphism with Alzheimer's disease and Lewy body variant.
abstract: The association between (GT)n dinucleotide repeats in monoamine oxidase gene loci, monoamine oxidase A (MAOA) and B (MAOB), and Parkinson's disease (PD), Alzheimer's disease (AD), and Lewy body variant (LBV) of AD were determined. MAOA-GT polymorphisms were significantly associated with pure AD and LBV. MAOA-GT allele 113 was excessively represented in pure AD and LBV compared with controls. Furthermore, the frequency of females homozygous for MAOA-GT allele 113 was higher in pure AD and LBV than controls by 2.79- and 2.77-fold, respectively. In contrast, there was no association between MAOA-GT or MAOB-GT polymorphisms and PD. These results suggest that polymorphisms within the MAOA gene may have implication in AD pathology shared by pure AD and LBV.
authors.affiliation: Laboratory of Molecular Clinical Chemistry, Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan.
authors.forename: Masanori
authors.initials: M
authors.lastname: Takehashi
authors.forename: Seigo
authors.initials: S
authors.lastname: Tanaka
authors.forename: Eliezer
authors.initials: E
authors.lastname: Masliah
authors.forename: Kunihiro
authors.initials: K
authors.lastname: Ueda
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D000544:Alzheimer Disease / Q000235:genetics*; D018900:Dinucleotide Repeats; D005260:Female; D005787:Gene Frequency; D020022:Genetic Predisposition to Disease / Q000235:genetics; D006801:Humans; D020961:Lewy Body Disease / Q000235:genetics*; D008297:Male; D008875:Middle Aged; D008995:Monoamine Oxidase / Q000235:genetics*; D011110:Polymorphism, Genetic; D014960:X Chromosome
chemical_list: D008995:Monoamine Oxidase