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INTRODUCTION: Many proteomics-based and bioinformatics-based efforts are made to detect the molecular mechanism of COVID-19 infection. Identification of the main protein targets and pathways of severe cases of COVID-19 infection is the aim of this study. METHODS: Published differentially expressed proteins were screened and the significant proteins were investigated via protein-protein interaction network using Cytoscape software V. 3.7.2 and STRING database. The studied proteins were assessed via action map analysis to determine the relationship between individual proteins using CluePedia. The related biological terms were investigated using ClueGO and the terms were clustered and discussed. RESULTS: Among the 35 queried proteins, six of them (FGA, FGB, FGG, and FGl1 plus TLN1 and THBS1) were identified as critical proteins. A total of 38 biological terms, clustered in 4 groups, were introduced as the affected terms. "Platelet degranulation" and "hereditary factor I deficiency disease" were introduced as the main class of the terms disturbed by COVID-19 virus. CONCLUSION: It can be concluded that platelet damage and disturbed haemostasis could be the main targets in severe cases of coronavirus infection. It is vital to follow patients' condition by examining the introduced critical differentially expressed proteins (DEPs).
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An association between obesity and symptoms of gastro-esophageal reflux disease (GERD) has been frequently reported in western societies. A recent study indicated a consistent association between abdominal diameter and reflux-type symptoms in the white population, but no consistent association in the black population or Asians. It is unclear whether an association persists after adjusting for known risk factors of GERD among Asian populations. We did a population-based, cross-sectional interview study to estimate the strength of association between body mass and symptoms of reflux. During interviews, participants completed a valid gastro-esophageal reflux questionnaire. Odds ratio (OR) with 95% confidence interval (CI), calculated by logistic regression with multivariate adjustments for covariates, were the measures of association. Symptoms of reflux at least once a week over the past 3 months were reported by 522 (9.1%) of the 5733 interviewees. Among those who were overweight or obese (BMI> 25 kg/m2), the OR of having symptoms of reflux was 0.88 (95% CI: 0.66-1.16) compared with those who were not overweight or obese. Thus, among Asians, symptoms of GERD occur independently of body mass index.