Project description:Describe the transcriptomic profile of Golden Hamster olfactory bulb in response to SARS-CoV-2 infection, separating by sexes.

2021-06-19 | E-MTAB-10442 | biostudies-arrayexpress

Polymorphisms associated with post-COVID-19 hyperglycemia using the Axiom Human Genotyping SARS-CoV-2 Research Array

Project description:To investigate the association between polymorphisms in innate immune genes and post-COVID-19 hyperglycemia

2025-08-30 | E-MTAB-15470 | biostudies-arrayexpress

Investigation of IgG-reactivity Profiles and Epitope Landscape in Divergent COVID-19 Trajectories and SARS-CoV-2 Variants using SARS-CoV-2 whole proteome peptide microarray

Project description:The objective of the study was to characterize the immunoreactivity profiles of IgG-reactive epitopes in COVID-19 patients with distinct disease trajectories as well as SARS-CoV-2-naïve sera, using a high-density SARS-CoV-2 whole proteome peptide microarray. The microarray comprised of a total of 5347 individual peptides, each consisting of 15 amino acids with an overlap of 13 amino acids printed in duplicate. The microarray also had a panel of the most relevant mutations from SARS-CoV-2 variants of concern like omicron, alpha, beta, gamma, delta, and others. This study consisted of 29 participants, including 10 naïve controls (5 pre-pandemic and 5 SARS-CoV-2 seronegative) and 19 RT-PCR-confirmed COVID-19 patients. The COVID-19 patients were stratified into two distinct cohorts based on their disease trajectories: the severe cohort (S), in which the patients presented moderate COVID-19 symptoms initially but eventually progressed toward severity; and the recovered cohort (R), in which severe COVID-19 patients progressed toward recovery. Our findings contribute to a deeper understanding of the immunopathogenesis of COVID-19 in patients with different disease trajectories, the effect of mutations on immunoreactivity, and potential cross-reactivity due to exposure to common cold viruses.

2025-03-31 | E-MTAB-14495 | biostudies-arrayexpress

Cryptic transmission of SARS-CoV-2 and the first COVID-19 wave.

Project description: Not available

| S-EPMC8636257 | biostudies-literature

COVID-19 tissue atlases reveal SARS-COV-2 pathology and cellular targets

Project description:COVID-19, caused by SARS-CoV-2, can result in acute respiratory distress syndrome and multiple-organ failure, but little is known about its pathophysiology. Here, we generated single-cell atlases of 23 lung, 16 kidney, 15 liver and 18 heart COVID-19 autopsy donor tissue samples, and spatial atlases of 14 lung donors. Integrated computational analysis uncovered substantial remodeling in the lung epithelial, immune and stromal compartments, with evidence of multiple paths of failed tissue regeneration, including defective alveolar type 2 differentiation and expansion of myofibroblasts and putative TP63+ intrapulmonary basal-like progenitor cells. Viral RNAs were enriched in mononuclear phagocytic and endothelial lung cells which induced specific host programs. Spatial analysis in lung distinguished inflammatory host responses in lung regions with and without viral RNA. Analysis of the other tissue atlases showed transcriptional alterations in multiple cell types in COVID-19 donor heart tissue, and mapped cell types and genes implicated with disease severity based on COVID-19 GWAS. Our foundational dataset elucidates the biological impact of severe SARS-CoV-2 infection across the body a key step towards new treatments.

2021-04-09 | GSE171668 | GEO

Aerosol and surface stability of HCoV-19 (SARS-CoV-2) compared to SARS-CoV-1.

Project description: Not available

| S-EPMC7217062 | biostudies-literature