Publications by authors named "Ahmed Alaswad"

Vaccination-induced protection against influenza is greatly diminished and increasingly heterogeneous with age. We investigated longitudinally (up to five time points) a cohort of 234 vaccinated >65-year-old vaccinees with adjuvanted vaccine FluAd across two independent seasons. System-level analyses of multiomics datasets measuring six modalities and serological data revealed that poor responders lacked time-dependent changes in response to vaccination as observed in responders, suggestive of systemic dysregulation in poor responders.

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Article Synopsis
  • * Researchers analyzed cytokine production before and after antibiotic treatment in over 1,000 patients, discovering a negative relationship between antibody production and IL-10 levels, as well as increased IL-1Ra in those with advanced disease.
  • * Genome-wide mapping identified 34 cytokine quantitative trait loci (cQTLs), including 31 new ones, linking immune responses to Lyme borreliosis susceptibility and offering insights relevant to other immune-related diseases.
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Objectives: To determine the association between common comorbidities, ICU mortality and antimicrobial consumption among critically ill COVID 19 patients in Saudi Arabia.

Methods: A retrospective observational study of patients admitted to the ICU from March 1st, 2020, through August 31st, 2021. We excluded patients who stayed <24 h in the ICU and with no confirmed COVID-19 PCR testing.

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Bacillus Calmette-Guérin (BCG) vaccination is a prototype model for the study of trained immunity (TI) in humans, and results in a more effective response of innate immune cells upon stimulation with heterologous stimuli. Here, we investigate the heterogeneity of TI induction by single-cell RNA sequencing of immune cells collected from 156 samples. We observe that both monocytes and CD8 T cells show heterologous transcriptional responses to lipopolysaccharide, with an active crosstalk between these two cell types.

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Biomarkers to identify ICU COVID-19 patients at high risk for mortality are urgently needed for therapeutic care and management. Here we found plasma levels of the glycolysis byproduct methylglyoxal (MG) were 4.4-fold higher in ICU patients upon admission that later died (n = 33), and 1.

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