Kümülatif kurşun maruziyeti için DNA metilasyon biyobelirteç Parkinson hastalığı ile ilişkilidir.

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Lead, a known neurotoxicant, has previously received attention in Parkinson's disease (PD) research, but epidemiologic studies have been limited in sample size and findings are equivocal. We generated two methylation-based biomarkers for cumulative tibia and patella bone-measured lead exposure in 1528 PD patients and 1169 controls. PD status was associated with increased levels of the DNAm biomarker for tibia-lead levels. We estimated a meta-OR for PD of 1.89 per unit DNAm tibia-lead increase (95% CI 1.59, 2.24; p = 8.1E-13). The current study supports the notion that chronic and long-term lead exposure tracked via DNAm may contribute to PD pathogenesis.

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