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Mendelian randomization supports causality between COVID-19 and glaucoma

Maolin Chen1,2, Yinhui Zhang1,2, Yu Yao3

  • 1Department of Pharmacy, The Affiliated Hospital, Southwest Medical University, Luzhou, China.

Medicine
|June 14, 2024
PubMed

Insights

This study suggests a potential causal link between Corona Virus Disease 2019 (COVID-19) and an increased risk of glaucoma. Mendelian randomization analysis found significant associations between COVID-19 and glaucoma development.

Area of Science:

  • Ophthalmology
  • Genetics
  • Epidemiology

Background:

  • Glaucoma is a leading cause of irreversible blindness worldwide.
  • The potential impact of Corona Virus Disease 2019 (COVID-19) on glaucoma risk remains unclear.
  • Understanding genetic predispositions and disease interactions is crucial for public health.

Purpose of the Study:

  • To investigate a potential causal relationship between COVID-19 and glaucoma.
  • To apply a robust genetic epidemiology method to assess this association.
  • To provide evidence for future clinical and public health strategies.

Main Methods:

  • A two-sample Mendelian randomization (MR) design was employed.
  • Inverse-variance-weighted (IVW) analysis was the primary statistical method.
  • Genome-Wide Association Study (GWAS) data from the IEU database was utilized, with sensitivity analyses including heterogeneity, pleiotropy, and leave-one-out tests.

Main Results:

  • Significant associations were observed between COVID-19 (release) and increased glaucoma risk (ORs ranging from 1.164 to 1.227, P < 0.05).
  • COVID-19 hospitalizations also showed a significant association with elevated glaucoma risk (ORs ranging from 1.097 to 1.156, P < 0.05).
  • Sensitivity analyses confirmed the robustness and reliability of the findings (P > 0.05).

Conclusions:

  • This Mendelian randomization study provides preliminary evidence supporting a causal link between COVID-19 and an increased risk of developing glaucoma.
  • Further research is warranted to elucidate the underlying biological mechanisms.
  • These findings may inform preventative measures and clinical management for individuals at risk.

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