This study is valuable to ATH investors. It gives info on the pathogenesis of PD. For an iron chelation company, it can open possibilities in PD prevention.
https://www.frontiersin.org/journals/aging-neuroscience/articles/10.3389/fnagi.2024.1416014/full
Here is the abstract:Abdominal multi-organ iron content and the risk of Parkinson's disease: a Mendelian randomization study
Mingrui Yang # 1, Cheng Tang # 1, Fei Peng # 1, Chaotian Luo 1, Guowei Chen 1, Rong Kong 1, Peng Peng 1 2AffiliationsPMCID: PMC11349543 DOI: 10.3389/fnagi.2024.1416014
- PMID: 39206119
Abstract
Background: To evaluate the causal relationship between abdominal multi-organ iron content and PD risk using publicly available genome-wide association study (GWAS) data.
Methods: We conducted MR analysis to assess the effects of iron content in various abdominal organs on PD risk, followed by reverse analysis. Additionally, MVMR analysis evaluated the independent effects of organ-specific iron content on PD. We utilized genetic variation data from the UK Biobank, including liver iron content (n = 32,858), spleen iron content (n = 35,324), and pancreas iron content (n = 25,617), as well as summary-level data for Parkinson's disease from the FinnGen (n = 218,473) and two other large GWAS datasets of European populations (First dataset n = 480,018; Second dataset n = 2,829). The primary MR analysis used the inverse variance-weighted (IVW) method, confirmed by MR-Egger and weighted median methods. Sensitivity analysis was performed to address potential pleiotropy and heterogeneity. Observational cohort results were validated through replication cohort analysis, followed by meta-analysis.
Results: IVW analysis revealed a causal relationship between increased liver iron content and elevated risk of PD (OR = 1.27; 95% CI: 1.05-1.53; p = 0.015). No significant causal relationship was observed between spleen (OR = 1.00; 95% CI: 0.76-1.32; p = 0.983) and pancreatic (OR = 0.93; 95% CI: 0.72-1.20; p = 0.573) iron content and increased risk of PD. Meta-analysis of GWAS data for PD from three different sources using the random-effects IVW method showed a statistically significant causal relationship between liver iron content and the occurrence of PD (OR = 1.17, 95% CI: 1.01-1.35; p = 0.012).
Conclusion: This study presents evidence from Mendelian randomization (MR) analysis indicating a significant causal link between increased liver iron content and a higher risk of Parkinson's disease (PD). These findings suggest that interventions targeting body iron metabolism, particularly liver iron levels, may be effective in preventing PD.
Keywords: Mendelian randomization; Parkinson’s disease; abdominal multi-organ; iron content; iron metabolism.
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