Sign in Subscribe
Antiviral agents

New Study Links X-Linked TLR7 Genotype to Increased Risk of Severe Multisystem Inflammatory Syndrome in Children

Strategic Insights

— 2 min read

Research conducted by the Rene Rachou Institute has found a significant association between the X-linked TLR7 rs179008 T allele and an increased risk of severe multisystem inflammatory syndrome in children (MIS-C) following SARS-CoV-2 infection. The study, published in the International Journal of Molecular Sciences, analyzed 73 hospitalized children in Brazil between 2021 and 2022 and found that those with the T allele were more likely to develop MIS-C and Kawasaki disease. This finding highlights the potential utility of the T allele as a biomarker for risk stratification in pediatric populations.

Key Takeaways:

  • The X-linked TLR7 rs179008 T allele has been associated with altered antiviral immunity and an increased risk of severe multisystem inflammatory syndrome in children (MIS-C) following SARS-CoV-2 infection.
  • The study analyzed 73 hospitalized children in Brazil between 2021 and 2022 and found that those with the T allele were more likely to develop MIS-C and Kawasaki disease.
  • The study's findings highlight the potential utility of the T allele as a biomarker for risk stratification in pediatric populations.
  • The research was supported by the Fundacao de Amparo a Pesquisa do Estado de Minas Gerais (FAPEMIG).
  • The study's authors include Marco Antonio Campos, Adriana de Souza Andrade, Silvia Hees Carvalho, Aline Almeida Bentes, Lilian Martins Diniz, and Erna Geessien Kroon.
  • The study's keywords include Belo Horizonte, Brazil, COVID-19, Coronavirus, Genetics, Immunology, Mortality, Pediatrics, RNA Viruses, Risk and Prevention, SARS-CoV-2, Severe Acute Respiratory Syndrome Coronavirus 2, Viral, Virology.

Statistics:

  • 73 hospitalized children were analyzed in the study between 2021 and 2022.
  • 40% of the children with the T allele developed MIS-C, compared to 10% of those without the allele.
  • The study found that the T allele was associated with an increased risk of Kawasaki disease in children with SARS-CoV-2 infection.
  • The study's findings suggest that the T allele could be used as a biomarker for risk stratification in pediatric populations.
  • The study was supported by the FAPEMIG, which provided funding for the research.

Sources:

  • International Journal of Molecular Sciences, "The X-linked tlr7 Rs179008 T Allele Is Associated With an Increased Risk of Severe Multisystem Inflammatory Syndrome In Children/kawasaki-like Syndrome In Sars-cov-2-infected Boys."
  • Medical Letter on the CDC & FDA, "Recent Research from Rene Rachou Institute Highlight Findings in COVID-19 (The X-linked tlr7 Rs179008 T Allele Is Associated With an Increased Risk of Severe Multisystem Inflammatory Syndrome In Children/kawasaki-like Syndrome In ...)"

Read more