Elevated serum plasminogen activator inhibitor-1 is associated with seizure burden, drug resistance, and neuroinflammatory markers in pediatric epilepsy - Summary - MDSpire

Elevated serum plasminogen activator inhibitor-1 is associated with seizure burden, drug resistance, and neuroinflammatory markers in pediatric epilepsy

  • By

  • Xiao Xiao

  • Xiaoyan Shi

  • Jun Feng

  • Xinyu Zhou

  • Manli Wang

  • Bingbing Zhang

  • Chen Xu

  • Jihong Tang

  • July 14, 2026

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Objective:

To investigate the association of PAI-1 with neuroinflammation, seizure susceptibility, and clinical outcomes in pediatric epilepsy patients.

Approach:
  • Study Design: A case-control study involving 200 pediatric epilepsy patients and 100 healthy controls.
  • Data Collection: Serum levels of PAI-1, cytokines, and markers of BBB disruption were quantified using ELISA. Clinical data on seizure frequency and treatment response were collected.
  • Statistical Analysis: Statistical methods included t-tests, ANOVA, Pearson correlation, multivariate linear regression, and ROC analysis.
Key Findings:
  • Serum PAI-1 levels were significantly higher in epilepsy patients compared to controls (28.47 ± 12.10 ng/mL vs. 11.35 ± 5.05 ng/mL; p < 0.001).
  • PAI-1 levels correlated positively with seizure frequency (r = 0.537, p < 0.001) and were higher in drug-resistant epilepsy patients (p < 0.001).
  • PAI-1 demonstrated excellent diagnostic performance for epilepsy (AUC = 0.916).
  • PAI-1 levels correlated with neuroinflammatory markers (IL-6: r = 0.270, p < 0.001) and BBB disruption (S100B: r = 0.271, p < 0.001).
  • Higher PAI-1 levels were associated with poorer quality of life scores (r = −0.227, p < 0.001).
Interpretation:

PAI-1 is significantly elevated in pediatric epilepsy and correlates with seizure burden, neuroinflammation, BBB disruption, drug resistance, and quality of life.

Limitations:
  • The study is cross-sectional, limiting causal inferences.
  • Longitudinal studies are needed to assess the predictive value of PAI-1 over time.
Conclusion:

PAI-1 may serve as a risk-stratification biomarker for identifying children with higher disease burden and potential treatment resistance.

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