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No association between alpha 1-antichymotrypsin and familial Alzheimer's disease. 1996

J L Haines, and M L Pritchard, and A M Saunders, and J M Schildkraut, and J H Growdon, and P C Gaskell, and L A Farrer, and S A Auerbach, and J F Gusella, and P A Locke, and B L Rosi, and L Yamaoka, and G W Small, and P M Conneally, and A D Roses, and M Pericak-Vance
Molecular Neurogenetics Unit, Massachusetts General Hospital, Charlestown 02129, USA.

Alzheimer's disease (AD) is the most common mid to late age-of-onset neurodegenerative disorder. AD has a strong and complex genetic etiology, and multiple genes, acting independently and/or interacting, likely affect the risk of developing AD. Several genes involved with AD already have been described, but only the APOE gene on chromosome 19q has been shown to affect the risk of the most common form of AD, occurring with onset over the age of 65. Because a substantial portion of late-onset AD is not explained by APOE, other genes affecting late-onset AD likely occur. These could act either independently or perhaps interact with APOE. alpha 1-Antichymotrypsin (ACT) is a major component of the amyloid plaques found in the brains of AD patients and may play a role in the pathophysiology of AD. It has been proposed that a specific polymorphism within the ACT gene interacts with APOE to increase the risk of developing AD. Our results do not confirm this finding.

UI MeSH Term Description Entries
D008126 Lod Score The total relative probability, expressed on a logarithmic scale, that a linkage relationship exists among selected loci. Lod is an acronym for "logarithmic odds." Lod Scores,Score, Lod,Scores, Lod
D008297 Male Males
D008404 Massachusetts State bounded on the north by New Hampshire and Vermont, on the east by the Atlantic Ocean, on the south by Connecticut and Rhode Island, and on the west by New York.
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D005190 Family A social group consisting of parents or parent substitutes and children. Family Life Cycles,Family Members,Family Life Cycle,Family Research,Filiation,Kinship Networks,Relatives,Families,Family Member,Kinship Network,Life Cycle, Family,Life Cycles, Family,Network, Kinship,Networks, Kinship,Research, Family
D005260 Female Females
D005838 Genotype The genetic constitution of the individual, comprising the ALLELES present at each GENETIC LOCUS. Genogroup,Genogroups,Genotypes
D006579 Heterozygote An individual having different alleles at one or more loci regarding a specific character. Carriers, Genetic,Genetic Carriers,Carrier, Genetic,Genetic Carrier,Heterozygotes
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults

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