Guerreiro, RJ; Bras, JM; Santana, I; Januario, C; Santiago, B; Morgadinho, AS; Ribeiro, MH; ... Oliveira, C; + view all Guerreiro, RJ; Bras, JM; Santana, I; Januario, C; Santiago, B; Morgadinho, AS; Ribeiro, MH; Hardy, J; Singleton, A; Oliveira, C; - view fewer (2006) Association of HFE common mutations with Parkinson's disease, Alzheimer's disease and mild cognitive impairment in a Portuguese cohort. BMC Neurology , 6 , Article 24. 10.1186/1471-2377-6-24.

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Abstract

Background: Pathological brain iron deposition has been implicated as a source of neurotoxic reactive oxygen species in Alzheimer (AD) and Parkinson diseases (PD). Iron metabolism is associated with the gene hemochromatosis (HFE Human genome nomenclature committee ID: 4886), and mutations in HFE are a cause of the iron mismetabolism disease, hemochromatosis. Several reports have tested the association of HFE variants with neurodegenerative diseases, such as AD and PD with conflicting results.Methods: Genotypes were analysed for the two most common variants of HFE in a series of 130 AD, 55 Mild Cognitive Impairment (MCI) and 132 PD patients. Additionally, a series of 115 healthy age-matched controls was also screened.Results: A statistically significant association was found in the PD group when compared to controls, showing that the presence of the C282Y variant allele may confer higher risk for developing the disease.Conclusion: Taken together these results suggest that the common variants in HFE may be a risk factor for PD, but not for AD in the Portuguese population.

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