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ABSTRACT: Background
In this study, we performed a bidirectional mendelian randomization analysis on circulating cytokines and critically ill COVID-19.Methods
Both the exposure and outcome data were obtained from public genome wide association study (GWAS) database. We extracted independent instrumental variables from exposure at genome level significance (P < 5 × 10-8). Wald ratio or inverse variance weighted (IVW) method were used for estimating the causal relationships between circulating cytokines and critically ill COVID-19.Results
Only IL5 (cytokines to critically ill COVID-19 direction) and bNGF, IL8 (critically ill COVID-19 to cytokines direction) showed suggestive causal relations. However, these associations lost significance after FDR correction. Another validation data set of critically ill COVID-19 did not confirm these associations, either.Conclusions
Our Mendelian randomization did not find causal relationships between analyzable circulating cytokines and critically ill COVID-19.
SUBMITTER: Yang Y
PROVIDER: S-EPMC8934535 | biostudies-literature | 2022
REPOSITORIES: biostudies-literature
Yang Yu Y Xiaohui Yang Y Miao Sui S Yingshuo Zhong Z
Journal of global health 20220219
<h4>Background</h4>In this study, we performed a bidirectional mendelian randomization analysis on circulating cytokines and critically ill COVID-19.<h4>Methods</h4>Both the exposure and outcome data were obtained from public genome wide association study (GWAS) database. We extracted independent instrumental variables from exposure at genome level significance (<i>P</i> < 5 × 10<sup>-8</sup>). Wald ratio or inverse variance weighted (IVW) method were used for estimating the causal relationships ...[more]