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Updated: Sep 29, 2026

Generalized Psychophysiological Interaction (PPI) Analysis of Memory Related Connectivity in Individuals at Genetic Risk for Alzheimer's Disease
Published on: November 14, 2017
Possible association between genetic variability at the apolipoprotein(a) locus and Alzheimer's disease in
Danielle Compton1, Fabienne Wavrant DeVriéze, Ronald C Petersen
1Department of Neuroscience, Mayo Clinic, Jacksonville, FL 32224, USA. comptond@mail.nih.gov
Abstract:
Apolipoprotein(a) (Apo(a)) is a glycoprotein that is linked by a disulfide bond to apolipoprotein B on low density lipoprotein particles to form lipoprotein(a) (Lp(a)). High plasma levels of Lp(a) are thought to contribute directly to the development of atherosclerosis. We tested a variant (T3888P) located in the Kringle-IV region of Apo(a) in a case-control series. Overall, there were no differences between case and controls. However, in the apoE2 positive subgroup, we noticed that the mutant allele is over-represented in the cases (P=0.005). We suggest that this polymorphism and others at the Apo(a) locus be further studied in relation to Alzheimer's disease.
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