Physical Activity and Thymic Tumors: A Study on Causality
Author Information
Author(s): Sun Yulin, Hao Shuaipeng
Primary Institution: Department of Sports Science, Hanyang University ERICA
Hypothesis
Does physical activity reduce the risk of thymic tumors through circulating cytokines?
Conclusion
Physical activity causally reduces the risk of thymic tumors, partially mediated by IL10RB.
Supporting Evidence
- Genetically predicted physical activity was associated with reduced risks of benign and malignant thymic tumors.
- IL10RB was identified as a partial mediator of the protective effect of physical activity on benign tumors.
- Sensitivity analyses indicated no pleiotropy or heterogeneity.
Takeaway
Being active can help lower the chances of getting thymic tumors, which are rare types of cancer in the chest.
Methodology
Two-sample Mendelian randomization analysis using genetic variants as instrumental variables for physical activity and cytokines.
Potential Biases
Potential residual pleiotropy may bias results despite sensitivity analyses.
Limitations
The rarity of thymic tumors resulted in a small number of cases, and the study was limited to individuals of European ancestry.
Participant Demographics
Participants were primarily of European ancestry.
Statistical Information
P-Value
0.001
Confidence Interval
95% CI: 0.158 to 0.921 for benign tumors; 95% CI: 0.155 to 0.628 for malignant tumors.
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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