Josefina Meléndez-Cabrero

Icahn School of Medicine at Mount Sinai, Borough of Manhattan, New York, United States

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Publications (3)20.11 Total impact

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    ABSTRACT: APOE epsilon4 is a major risk factor for Alzheimer's disease. It has also been associated with cognitive impairment and cognitive decline in young-olds, but the impact of the epsilon4 allele on cognitive function in very late life is still unclear. The object of this study was to evaluate the association of the epsilon4 allele of APOE with the cognitive performance of a sample of non-demented oldest-olds. Eighty-seven Spanish-speaking Puerto Rican non-demented nonagenarians were administered a complete neuropsychological assessment and provided a blood sample used for APOE genotyping. A factor analysis generated two factors: 1) verbal memory; and 2) visuo-spatial, naming and attention tasks, accounting for 43.6% of the overall variance in the 13 original neuropsychological variables. The multivariate analysis reflected, after controlling for gender, education, and age, the APOE epsilon4 carriers performed better in overall cognition (both factors analyzed together) than non-carriers (T ;{2} = 0.082, F(2,80) = 3.289, p = 0.042). Neither gender nor the gender by APOE epsilon4 status interaction was associated with differences in cognition. In conclusion, the results of this study suggest that, among these Puerto Rican non-demented nonagenarians, being an APOE epsilon4 allele carrier is associated with better cognition.
    Journal of Alzheimer's disease: JAD 08/2009; 18(3):533-40. DOI:10.3233/JAD-2009-1160 · 4.15 Impact Factor
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    ABSTRACT: While the oldest old are the fastest growing segment of the US population, normative neuropsychological data for nondemented oldest old Spanish speakers are nonexistent. This study sought to evaluate the neuropsychological performance of nondemented nonagenarians residing in Puerto Rico and to compare their results with those of a similar English-speaking sample from New York. We studied 81 subjects who had a complete CERAD neuropsychological assessment in Spanish. We used multiple regression analysis to predict performance on the CERAD battery and ANCOVA to compare the Puerto Rico and New York samples. In 10 out of the 13 neuropsychological tests administered, education was a significant predictor of performance. There were significant differences between the Puerto Rico and New York groups only in the Trail Making Tests. In this Puerto Rican sample, education was the strongest predictor of neuropsychological performance, which is consistent with previous studies. When education level is properly accounted for, the performance of Puerto Rican nonagenarians in the CERAD battery does not differ from the performance of US English-speaking nonagenarians.
    Dementia and Geriatric Cognitive Disorders 04/2009; 27(4):353-60. DOI:10.1159/000209213 · 3.55 Impact Factor

  • Alzheimer's and Dementia 07/2008; 4(4). DOI:10.1016/j.jalz.2008.05.1853 · 12.41 Impact Factor