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The MC1R melanoma risk variant p.R160W is associated with Parkinson disease

Gemma Tell-Marti1, Joan Anton Puig-Butille, Miriam Potrony

  • 1Dermatology, Department, Melanoma Unit, Hospital Clínic and August Pi i Sunyer Biomedical Research Institute (IDIBAPS); Center for Biomedical Network Research on Rare Diseases (CIBERER), Carlos III Health Institute (ISCIII).

Annals of Neurology
|January 30, 2015
PubMed

Insights

Genetic variants in the melanocortin 1 receptor (MC1R) gene may influence Parkinson disease (PD) risk. The MC1R variant p.R160W showed a marginal association with PD in a Spanish population study.

Area of Science:

  • Genetics
  • Neuroscience
  • Dermatology

Background:

  • Epidemiological studies indicate a potential link between Parkinson disease (PD) and melanoma.
  • Genetic variations in the melanocortin 1 receptor (MC1R) gene are known risk factors for melanoma.
  • MC1R plays a role in pigmentation and is implicated in various cellular processes.

Purpose of the Study:

  • To investigate whether genetic variants in the MC1R gene influence the risk of developing Parkinson disease.
  • To explore the association between specific MC1R variants and PD in a Spanish cohort.

Main Methods:

  • Sequencing of the entire MC1R gene in 870 Parkinson disease patients and 736 control individuals.
  • Statistical analysis to assess the association between MC1R variants and PD risk, adjusting for age and gender.
  • Application of Bonferroni correction for multiple comparisons.

Main Results:

  • A marginal association was observed between the MC1R variant p.R160W (rs1805008) and Parkinson disease.
  • The odds ratio for PD associated with the p.R160W variant was 2.10 (adjusted p = 0.009, Bonferroni-corrected p = 0.063).

Conclusions:

  • Genetic variants within the MC1R gene may modulate the risk of Parkinson disease.
  • These findings suggest a potential genetic link between pigmentation pathways and PD susceptibility in the Spanish population.

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