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Published on: June 21, 2018
Causal links between blood inflammation markers and postherpetic neuralgia risk: insights from a two-sample Mendelian
1Department of Pharmacy, Northwest University First Hospital, Xi'an, Shaanxi, China.
Introduction:
Previous studies have suggested an association between blood inflammation-related factors and postherpetic neuralgia. However, the causal relationship between blood inflammation-related factors and postherpetic neuralgia remains unclear.
Methods:
We employed a bidirectional Two-sample Mendelian randomization (MR) analysis to explore the causal relationship between blood inflammation-related factors and postherpetic neuralgia. The instrumental variables were obtained from a large Genome-wide association study (GWAS) meta-analysis dataset of European descent. The instrumental variables of the blood inflammation-related factors come from the database numbers GCST004420 to GCST004460 and GCST90029070. Postherpetic neuralgia has 195,191 samples with a total of 16,380,406 single nucleotide polymorphisms (SNPs). MR analyses were performed using inverse-variance weighted, MR-Egger, and weighted median methods.
Results:
The MR results revealed a significant causal effect of Macrophage Inflammatory Protein 1 Beta (MIP1β) on reducing the risk of postherpetic neuralgia (95%CI = 0.492-0.991, p = 0.044). Additionally, higher levels of interleukin (IL)-10 (95%CI = 0.973-0.998, p = 0.019) and IL-12p70 (95%CI = 0.973-0.997, p = 0.013) were associated with a lower risk of postherpetic neuralgia. Other inflammatory markers showed no significant causal relationship with this condition.
Conclusion:
This study identifies MIP1β, IL-10, and IL-12p70 as potential therapeutic targets for preventing or treating postherpetic neuralgia, underscoring the need for further research in this area.
Insights
This study used Mendelian randomization to investigate inflammation and postherpetic neuralgia. Macrophage Inflammatory Protein 1 Beta (MIP1β), IL-10, and IL-12p70 were found to reduce the risk of developing postherpetic neuralgia.
Area of Science:
- Immunology
- Genetics
- Neurology
Background:
- Previous research suggests a link between blood inflammation markers and postherpetic neuralgia (PHN).
- The exact causal relationship between these inflammatory factors and PHN remains undetermined.
Purpose of the Study:
- To investigate the causal relationship between blood inflammation-related factors and postherpetic neuralgia using a bidirectional Mendelian randomization analysis.
- To identify potential inflammatory biomarkers that could serve as therapeutic targets for PHN.
Main Methods:
- A bidirectional Two-sample Mendelian randomization (MR) analysis was conducted.
- Instrumental variables for inflammation-related factors were sourced from large GWAS meta-analysis datasets (GCST004420-GCST004460, GCST90029070).
- Standard MR analyses included inverse-variance weighted, MR-Egger, and weighted median methods.
Main Results:
- Macrophage Inflammatory Protein 1 Beta (MIP1β) showed a significant causal effect in reducing PHN risk.
- Elevated levels of interleukin (IL)-10 and IL-12p70 were associated with a decreased risk of PHN.
- No significant causal relationships were found for other examined inflammatory markers.
Conclusions:
- MIP1β, IL-10, and IL-12p70 are identified as potential therapeutic targets for PHN prevention and treatment.
- Further research is warranted to explore the therapeutic potential of these inflammatory markers in managing PHN.

