Genetic association between the APOE*4 allele and Lewy bodies in Alzheimer disease.

Objective: To explore the association between APOE*4 and pathologically confirmed cases of the Lewy body (LB) variant of Alzheimer disease (AD).

Methods: With use of alpha-synuclein (AS) immunohistochemistry, LBs were detected in 74 of 131 (56.5%) of the AD + LB cases; the remaining 57 cases (43.

Association of 3'-UTR polymorphisms of the oxidised LDL receptor 1 (OLR1) gene with Alzheimer's disease.

Although possession of the epsilon 4 allele of the apolipoprotein E gene appears to be an important biological marker for Alzheimer's disease (AD) susceptibility, strong evidence indicates that at least one additional risk gene exists on chromosome 12. Here, we describe an association of the 3'-UTR +1073 C/T polymorphism of the OLR1 (oxidised LDL receptor 1) on chromosome 12 with AD in French sporadic (589 cases and 663 controls) and American familial (230 affected sibs and 143 unaffected sibs) populations. The age and sex adjusted odds ratio between the CC+CT genotypes versus the TT genotypes was 1.

Association of the 3' UTR transcription factor LBP-1c/CP2/LSF polymorphism with late-onset Alzheimer's disease.

Alzheimer's disease (AD) is a genetically heterogeneous neurodegenerative disorder. To date, apolipoprotein E (apoE) is the only established susceptibility gene for late-onset AD. ApoE accounts for less than 50% of the risk of AD, indicating the presence of other unknown susceptibility loci.

Investigation of oxidized LDL-receptor 1 (OLR1) as the candidate gene for Alzheimer's disease on chromosome 12.

Late-onset Alzheimer's disease (AD) is a genetically heterogeneous neurodegenerative disorder. In addition to the apolipoprotein E (APOE) gene on chromosome 19, linkage studies suggest the existence of multiple susceptibility genes for late-onset AD. Genome-wide linkage and chromosome-12-specific linkage studies have identified a broad 50-cM pericentromeric region between 12p12 and 12q13 among non- APOE*4 carriers.

Genetic variation in alpha(1)-antichymotrypsin and its association with Alzheimer's disease.

Alzheimer's disease (AD) is a devastating neurodegenerative disorder characterized by extracellular neuritic plaques and intracellular neurofibrillary tangles in brain parenchyma. Alpha-1-antichymotrypsin (ACT) is a component of plaque cores, can bind to Abeta, and has been proposed as a possible candidate gene for AD susceptibility. The genetic association between the ACT codon -17*A allele of the signal peptide polymorphism and AD has been shown in some, but not in all studies.