Project description:The heterogeneity in symptomatology and phenotypic profile attributable to COVID-19 is widely unknown. For the first time, our study provides the unique advantage of obtaining samples from the Middle Eastern population, an underrepresented region in genetic studies, and explore new genotypes in this population that will yield to novel genetic association. Specifically, we studied 646 patients in the United Arab Emirates. We describe strong association signals from genes on chromosomes 2, 3, 5, 11 and 13, which carry genes that are expressed in the lung, have been associated with tumour progression, emphysema, airway obstruction, and surface tension within the lung. Identifying genetic variants associated to COVID-19 susceptibility and severity may uncover novel biological insights into disease pathogenesis and identify mechanistic targets for therapeutic and vaccine development.
Project description:DNA methylation plays a role in the pathogenesis of viral infections and disease progression. We aimed to explore its connection to the trajectories of COVID-19 disease. To achieve this, we examined samples from the IMPACC cohort, which includes hospitalized COVID-19 patients categorized into five disease trajectory groups (TGs) based on the dynamics and severity of respiratory symptoms during the acute phase of SARS-CoV-2 infection (the first 28 days).
Project description:Coronavirus disease 2019 (COVID-19) can be asymptomatic or lead to a wide spectrum of symptoms, ranging from mild upper respiratory system involvement to acute respiratory distress syndrome, multi-organ damage and death. In this study, we explored the potential of microRNAs (miRNA) in delineating patient condition and in predicting clinical outcome. Analysis of the circulating miRNA profile of COVID-19 patients, sampled at different hospitalization intervals after admission, allowed to identify miR-144-3p as a dynamically regulated miRNA in response to COVID-19.