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Calbindin-1 association and Parkinson's disease
A I Soto-Ortolaza1, B Behrouz, C Wider
1Department of Neuroscience, Mayo Clinic College of Medicine, Jacksonville, FL, USA.
European Journal of Neurology
|August 14, 2009
Summary
This study found no link between the calbindin gene variant rs1805874 and Parkinson's disease (PD) risk in Caucasian populations. The findings suggest that calbindin's role in PD may differ across ethnic groups.
Area of Science:
- Neuroscience
- Genetics
- Epidemiology
Background:
- Calcium homeostasis is crucial for neuronal survival, particularly in the nigrostriatal pathway affected in Parkinson's disease (PD).
- Previous research suggested a potential association between the calbindin gene (rs1805874) and PD risk in a Japanese cohort.
Purpose of the Study:
- To investigate the association between the calbindin gene variant rs1805874 and Parkinson's disease risk in Caucasian populations.
- To determine if the previously reported association in a Japanese population is replicated in independent Caucasian cohorts.
Main Methods:
- Genotyping of the rs1805874 polymorphism in four independent Caucasian case-control studies.
- Analysis included a total of 1543 PD patients and 1771 healthy controls.
Main Results:
- No statistically significant association was observed between rs1805874 and PD risk in any of the individual Caucasian populations.
- Combined analysis of the four Caucasian cohorts also revealed no evidence of an association (OR: 1.04, 95% CI: 0.82-1.31, P = 0.74).
Conclusions:
- The calbindin gene variant rs1805874 is not associated with Parkinson's disease risk in the studied Caucasian populations.
- These findings indicate that the influence of calbindin on PD susceptibility may be population-specific, potentially differing between Asian and Caucasian ancestries.
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