Is Respiratory Viral Infection an Inciting Event in the Development of Melioidosis? A Systematic Evaluation of Co-infection With and SARS-CoV-2 or Influenza.

Respiratory viral infection may increase infection with progressing to clinical disease (melioidosis). This data linkage study evaluated associations between melioidosis and SARS-CoV-2 or influenza. Among 160 melioidosis cases, there was no difference in risk factors, vaccine status, or disease severity between 17 with viral co-infection and 143 without.

Does ATP via purinergic receptor signalling fuel pulmonary fibrosis?

Background: Interstitial lung diseases (ILD) are poorly understood disorders characterised by diffuse damage to the lung parenchyma, with inflammation and fibrosis. Some manifest a progressive fibrotic phenotype with high fatality and limited treatment options, such as idiopathic pulmonary fibrosis (IPF).

Summary: The degree to which inflammation plays a role in fibrosis progression is unknown.

Cascading tipping points of Antarctica and the Southern Ocean.

Antarctica and the Southern Ocean are key elements in the physical and biological Earth system. Human-induced climate change, and other human activities in the region, are leading to several potential interacting tipping points with major and irreversible consequences. Here, we examine eight potential physical, biological, chemical, and social Antarctic tipping points.

The vacuolar anti- activity of neutrophil primary granule peptidyl-arginine deiminase enzymes.

The role of neutrophils in host defense involves several cell processes including phagocytosis, degranulation of antimicrobial proteins, and the release of neutrophil extracellular traps (NETs). In turn, dysregulated cell activity is associated with the pathogenesis of airway and rheumatic diseases, in which neutrophil-derived enzymes including peptidyl-arginine deiminases (PADs) play a role. Known physiological functions of PADs in neutrophils are limited to the activity of PAD isotype 4 in histone citrullination in NET formation.

Adaptive enrichment trial designs using joint modelling of longitudinal and time-to-event data.

Adaptive enrichment allows for pre-defined patient subgroups of interest to be investigated throughout the course of a clinical trial. These designs have gained attention in recent years because of their potential to shorten the trial's duration and identify effective therapies tailored to specific patient groups. We describe enrichment trials which consider long-term time-to-event outcomes but also incorporate additional short-term information from routinely collected longitudinal biomarkers.