title: Apolipoprotein A-V gene polymorphism -1131T>C and Alzheimer's disease.
abstract: Alzheimer's disease (AD) is the most common neurodegenerative disorder in the elderly and is also considered a progeroid genetic syndrome. The etiology of AD is complex and the mechanisms underlying its pathophysiology remain to be clarified. It has been suggested that a high serum cholesterol level is a risk factor for (AD), and that some polymorphisms of genes encoding proteins regulating cholesterol metabolism are associated with AD development. APOA5 is a recently discovered apolipoprotein involved primarily with triglyceride (TG) metabolism disorder. This study investigates the association of AD with the APOA5 gene -1131T>C polymorphisms in samples of 106 patients with Alzheimer's disease (AD), 76 elderly healthy controls and 93 young healthy controls. DNA samples were isolated from blood cells, amplified by PCR and digested with Tru1l. We observed that the genotype distributions of APOA5 variants were within Hardy-Weinberg equilibrium in all subject samples. Furthermore, chi-square test comparison for genotype distributions and allele frequencies did not reveal any significant difference among the three groups of subjects P>0.05). These results support the idea that these variants are not involved as a risk factor for developing AD.
authors.affiliation: Mestrado en Biologia Oral, USC Universidade do Sagrado Coração, Bauru, São Paulo, Brazil.
authors.forename: Fábio Augusto Freiria
authors.initials: FA
authors.lastname: Barbosa
authors.forename: Roger Willian
authors.initials: RW
authors.lastname: de Labio
authors.forename: Valdeci
authors.initials: V
authors.lastname: de Oliveira S Rigolin
authors.forename: Thais
authors.initials: T
authors.lastname: Minett
authors.forename: Paulo Henrique Ferreira
authors.initials: PH
authors.lastname: Bertolucci
authors.forename: Marília
authors.initials: M
authors.lastname: de Arruda Cardoso Smith
authors.forename: Spencer Luiz Marques
authors.initials: SL
authors.lastname: Payão
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D000544:Alzheimer Disease / Q000235:genetics* / Q000503:physiopathology; D000072040:Apolipoprotein A-V; D001054:Apolipoproteins A / Q000235:genetics*; D005260:Female; D005787:Gene Frequency / Q000235:genetics; D006580:Genetic Carrier Screening; D005838:Genotype; D006801:Humans; D008297:Male; D008875:Middle Aged; D016133:Polymerase Chain Reaction; D011110:Polymorphism, Genetic / Q000235:genetics*; D012016:Reference Values; D012307:Risk Factors; D014280:Triglycerides / Q000097:blood
chemical_list: C437704:APOA5 protein, human; D000072040:Apolipoprotein A-V; D001054:Apolipoproteins A; D014280:Triglycerides