The publication detail shows the title, authors (with indicators showing other profiled authors), information on the publishing organization, abstract and a link to the article in PubMed. This abstract is what is used to create the fingerprint of the publication. If any grants are referenced by the publication, they will be listed here as well.
COMT genotype and cognitive function: an 8-year longitudinal study in white and black elders.
A J Fiocco; K Lindquist; R Ferrell; R Li; E M Simonsick; M Nalls; T B Harris; K Yaffe; (Profiled Author: Eleanor Simonsick)
Department of Psychiatry, School of Medicine, University of California, San Francisco, CA 94121, USA. firstname.lastname@example.org
OBJECTIVE: Catechol-O-methyltransferase (COMT), an enzyme that catalyzes the degradation of dopamine, is necessary for cognitive function. Few studies have examined the prospective association between COMT (val(158)met) genotype and cognition in older adults. METHODS: We assessed a biracial cohort of 2,858 elderly subjects without dementia who were followed for 8 years. The Modified Mini-Mental State Examination (3MS) and Digit Symbol Substitution Test (DSST) were administered at baseline and years 3, 5, and 8. COMT by race, gender, and APOE status interactions were examined. RESULTS: Stratified by race and adjusted for covariates, repeated-measures mixed-effects models showed no association between COMT genotype and baseline cognitive function in black or white subjects. In white subjects, COMT was associated with change in 3MS (Met/Met: -2.3 [0.60], Met/Val: -1.7 [0.40], and Val/Val: -1.2 [0.50]) and DSST (Met/Met: -5.60 [1.00], Met/Val: -4.80 [0.70], Val/Val: -4.00 [0.90]). In black subjects, COMT was associated with change in the DSST (Met/Met: -4.10 [2.1], Met/Val: -4.80 [0.90], Val/Val -2.60 [1.00]). CONCLUSION: These findings suggest that the Val allele has a protective impact on cognitive decline in late life.
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