Pediatric rheumatology

Gene association analysis to determine the causal relationship between immune cells and juvenile idiopathic arthritis

Pediatr Rheumatol Online JPublished Two-sample Mendelian randomisation study

Authors' conclusion

Our study assessed the causal effect of immune cells on JIA from a genetic perspective.

Study context

Population
731 immune cell phenotypes (median fluorescence intensity (MFI), relative cellular (RC), absolute cellular (AC), morphological parameters (MP)) and juvenile idiopathic arthritis (JIA)
Comparison
Genetically predicted immune cell phenotypes and JIA
Outcome
Causal relationship between immune phenotypes and the onset of JIA
Methodological detailsbidirectional, sensitivity analysis
  • Bidirectional
  • Sensitivity analysis

Main finding

As reported in the abstract

Immune phenotypes causally associated with JIA
CD3 on CM CD8br causally associated with JIA (significance level 0.05), 95% CI
0.630 ≈0.847
CD3 on CM CD8br, P
P = 3.33 × 10-5
CD3 on CM CD8br, PFDR
PFDR = 0.024
HLA DR on CD14+ CD16- monocyte causally associated with JIA (significance level 0.20), 95% CI
0.633 ≈0.884
HLA DR on CD14+ CD16- monocyte, P
P = 6.83 × 10-4
HLA DR on CD14+ CD16- monocyte, PFDR
PFDR = 0.16
HLA DR on CD14+ monocyte causally associated with JIA (significance level 0.20), 95% CI
0.627 ≈0.882
HLA DR on CD14+ monocyte, P
P = 6.9 × 10-4
HLA DR on CD14+ monocyte, PFDR
PFDR = 0.16

Original publication

Gene association analysis to determine the causal relationship between immune cells and juvenile idiopathic arthritis. Pediatr Rheumatol Online J. Published 8 March 2024. doi:10.1186/s12969-024-00970-8

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