Association between genetic and environmental factors and the risk of Alzheimer's disease.
Folia Neuropathol
; 46(4): 249-54, 2008.
Article
en En
| MEDLINE
| ID: mdl-19169966
ABSTRACT
The only well confirmed genetic risk factor for sporadic Alzheimer's disease (AD) is the possession of apolipoprotein E (APOE) epsilon4 allele. As it contributes to 40-70% of AD cases, a large proportion of genetic variance may be determined by additional loci. Our aim was to estimate how reported genetic factors (APOE, NOS3, MTHFR) interact to increase the risk for AD and combine them with environmental factors (homocysteine, vitamin B12, cholesterol). Genotyping was performed in 154 AD patients and 176 healthy controls. Levels of homocysteine, vitamin B12 and cholesterol were assessed in subgroups of 100 AD patients and 100 controls. We found a difference in APOE epsilon4 and NOS3 G/G distribution between groups (p<0.005). Plasma total homocysteine was increased and vitamin B12 decreased in AD patients (p<0.001). The influence of APOE epsilon4 and NOS3 G alleles on the risk of AD was independent of homocysteine, vitamin B12 levels and MTHFR status.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Predisposición Genética a la Enfermedad
/
Enfermedad de Alzheimer
Tipo de estudio:
Etiology_studies
/
Risk_factors_studies
Límite:
Humans
Idioma:
En
Revista:
Folia Neuropathol
Asunto de la revista:
NEUROLOGIA
/
PATOLOGIA
Año:
2008
Tipo del documento:
Article
País de afiliación:
Polonia