The causal relationship between matrix metalloproteinase-3 and fibromyalgia: A two-sample Mendelian randomization...

Area of Science:

• Genetics
• Rheumatology
• Biochemistry

Background:

• Fibromyalgia is a chronic pain condition with unclear causes.
• Matrix metalloproteinase-3 (MMP-3) is implicated in inflammation and tissue remodeling.
• Genetic links between MMP-3 and fibromyalgia require validation.

Purpose of the Study:

• To explore the potential causal association between MMP-3 levels and fibromyalgia risk.
• To utilize Mendelian randomization (MR) methods for genetic evidence.
• To investigate MMP-3's role in fibromyalgia pathogenesis.

Main Methods:

• Mendelian randomization (MR) analysis using genome-wide association study (GWAS) data.
• GWAS data for MMP-3 levels (n=21,758) and fibromyalgia (n=361,194).
• Inverse variance weighting (IVW), MR-Egger, and weighted median methods were employed.

Main Results:

• The IVW analysis indicated a potential causal link, with increased MMP-3 associated with higher fibromyalgia risk (OR=1.00098, P=0.0225).
• MR-Egger and weighted median analyses showed consistent trends but lacked statistical significance.
• Sensitivity analyses confirmed the robustness of the findings, with no significant heterogeneity or pleiotropy detected.

Conclusions:

• Genetic evidence supports a potential causal association between MMP-3 and fibromyalgia.
• MMP-3 may be involved in the underlying mechanisms of fibromyalgia.
• Further research into MMP-3 as a therapeutic target for fibromyalgia is warranted.