Association of Vitamin D with Mild Cognitive Impairment and Alzheimer’s Dementia in Older Mexican Adults



Título del documento: Association of Vitamin D with Mild Cognitive Impairment and Alzheimer’s Dementia in Older Mexican Adults
Revista: Revista de investigación clínica
Base de datos: PERIÓDICA
Número de sistema: 000454110
ISSN: 0034-8376
Autores: 1
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Instituciones: 1Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Programa de Medicina Geriátrica y Neurología, Ciudad de México. México
2Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Departamento de Geriatría, Ciudad de México. México
Año:
Periodo: Nov-Dic
Volumen: 71
Número: 6
Paginación: 381-386
País: México
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Analítico, descriptivo
Resumen en inglés Background It has been proposed that Vitamin D helps reduce the accumulation of cerebral β-amyloid-42 by innate immune stimulation and phagocytosis activation. An association between low Vitamin D levels and Alzheimer’s dementia (AD) has been established. We determined the association between Vitamin D, mild cognitive impairment (MCI), and AD in older Mexican adults (> 65 years) Methods Cross-sectional study conducted at the memory clinic in a tertiary-level hospital in Mexico City. We evaluated subjects with MCI, AD, and normal cognition (NC) with available serum Vitamin D [25(OH)D] levels (past 6 months). Three categories were assigned according to 25(OH)D levels: sufficiency (> 30 ng/mL), insufficiency (21-29 ng/mL), and deficiency (≤ 20 ng/mL). Descriptive statistics, means and standard deviations were used. Logistic regression analyses adjusted by age, sex, and educational level were performed Results We evaluated 208 patients. Mean age was 79 ± 1 year, 65% (n = 136) were female; and mean educational level was 6.7 ± 2.3 years. Thirty-one subjects (14%) had NC; 42% (n = 88) had MCI; and 43% (n = 89) had AD. Prevalence of Vitamin D deficiency was 54%, more frequent in the AD group (64%) followed by the MCI (59%) and NC (13%) (p < 0.001) groups. In the multivariate logistic regression analysis, Vitamin D deficiency was associated with MCI (HR 25.02 [confidence interval 95% 4.48-139]; p < 0.001) and AD (HR 41.7 [5.76-301]; p < 0.001) after adjusting for confounders Conclusions Serum Vitamin D deficiency was associated with MCI and dementia; low levels produced a greater effect over executive functions
Disciplinas: Medicina
Palabras clave: Neurología,
Geriatría,
Farmacología,
Vitamina D,
Deterioro cognitivo leve,
Demencia,
Enfermedad de Alzheimer,
Ancianos
Keyword: Neurology,
Geriatrics,
Pharmacology,
Vitamin D,
Mild cognitive impairment,
Dementia,
Alzheimer disease,
Aged
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