Association of vitamin d with mild cognitive impairment and alzheimer's dementia in older mexican adults
Rev. invest. clín
;
71(6): 381-386, Nov.-Dec. 2019. tab
Artigo
em Inglês
| LILACS
| ID: biblio-1289709
ABSTRACT
ABSTRACT 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 Alzheimers 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.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Vitamina D
/
Deficiência de Vitamina D
/
Doença de Alzheimer
Tipo de estudo:
Estudo de etiologia
/
Estudo observacional
/
Estudo de prevalência
/
Fatores de risco
Limite:
Idoso
/
Aged80
/
Feminino
/
Humanos
/
Masculino
País/Região como assunto:
México
Idioma:
Inglês
Revista:
Rev. invest. clín
Assunto da revista:
Medicina
Ano de publicação:
2019
Tipo de documento:
Artigo
País de afiliação:
México
Instituição/País de afiliação:
Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán/MX
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