Small airways disease (SAD) is a key component of COPD and is a main contributing factor to lung function decline.. ..Thirty nine COPD subjects defined as either frequent exacerbators ( ≥ 2 exacerbations per year, n = 17) and infrequent exacerbators (≤1 exacerbation per year, n = 22) underwent Forced Oscillation Technique (R5-R19, AX), multiple… Continue reading Interrelationships between small airways dysfunction, neutrophilic #inflammation and exacerbation frequency in #COPD
Category: Infectivology
Gut #microbiota depletion by chronic antibiotic treatment alters the #sleep/wake architecture and sleep #EEG power spectra in mice
Dysbiosis of the gut microbiota affects physiological processes, including brain functions, by altering the intestinal metabolism. Here we examined the effects of the gut microbiota on sleep/wake regulation. C57BL/6 male mice were treated with broad-spectrum antibiotics for 4 weeks to deplete their gut microbiota. Metabolome profiling of cecal contents in antibiotic-induced microbiota-depleted (AIMD) and control… Continue reading Gut #microbiota depletion by chronic antibiotic treatment alters the #sleep/wake architecture and sleep #EEG power spectra in mice
#Aprotinin Inhibits #SARS-CoV-2 Replication
Severe acute respiratory syndrome virus 2 (SARS-CoV-2) is the cause of the current coronavirus disease 19 (COVID-19) pandemic. Protease inhibitors are under consideration as virus entry inhibitors that prevent the cleavage of the coronavirus spike (S) protein by cellular proteases. Herein, we showed that the protease inhibitor aprotinin (but not the protease inhibitor SERPINA1/alpha-1 antitrypsin)… Continue reading #Aprotinin Inhibits #SARS-CoV-2 Replication
The gut #microbiota is associated with #immune cell dynamics in humans
The gut microbiota influences development and homeostasis of the mammalian immune system, and is associated with human inflammatory and immune diseases as well as responses to immunotherapy. Nevertheless, our understanding of how gut bacteria modulate the immune system remains limited, particularly in humans, where the difficulty of direct experimentation makes inference challenging. Here we study… Continue reading The gut #microbiota is associated with #immune cell dynamics in humans
Distinct #inflammatory profiles distinguish #COVID-19 from #influenza with limited contributions from #cytokine storm
We pursued a study of immune responses in COVID-19 and influenza cohorts. Compared to influenza patients, COVID-19 patients exhibited largely equivalent lymphocyte counts, fewer monocytes, and lower surface HLA-class II expression on select monocyte populations. Furthermore, decreased HLA-DR on intermediate monocytes was a significant predictor of COVID-19 disease severity. In contrast to prevailing assumptions about… Continue reading Distinct #inflammatory profiles distinguish #COVID-19 from #influenza with limited contributions from #cytokine storm
#Loneliness, Mental Health, and Substance Use among US Young Adults during #COVID-19
As COVID-19 converges with loneliness and addiction epidemics in the US, both public health and mental health experts forecast dramatic increases in substance use and mental health conditions. This cross-sectional study evaluated relationships of loneliness with depression, anxiety, alcohol use, and drug use during COVID-19, and assessed perceived increases in these symptoms in young adults.… Continue reading #Loneliness, Mental Health, and Substance Use among US Young Adults during #COVID-19
Integrative analysis for #COVID-19 patient outcome prediction
While image analysis of chest computed tomography (CT) for COVID-19 diagnosis has been intensively studied, little work has been performed for image-based patient outcome prediction. Management of high-risk patients with early intervention is a key to lower the fatality rate of COVID-19 pneumonia, as a majority of patients recover naturally. Therefore, an accurate prediction of… Continue reading Integrative analysis for #COVID-19 patient outcome prediction
Racial and Ethnic Differences in Presentation and Outcomes for Patients Hospitalized with #COVID-19: Findings from the American Heart Association’s COVID-19 Cardiovascular Disease Registry
The COVID-19 pandemic has exposed longstanding racial/ethnic inequities in health risks and outcomes in the U.S.. We sought to identify racial/ethnic differences in presentation and outcomes for patients hospitalized with COVID-19.. ..Among 7,868 patients hospitalized with COVID-19, 33.0% were Hispanic, 25.5% were non-Hispanic Black, 6.3% were Asian, and 35.2% were non-Hispanic White. Hispanic and Black… Continue reading Racial and Ethnic Differences in Presentation and Outcomes for Patients Hospitalized with #COVID-19: Findings from the American Heart Association’s COVID-19 Cardiovascular Disease Registry
JAK inhibition reduces #SARS-CoV-2 #liver infectivity and modulates inflammatory responses to reduce morbidity and mortality
Using AI we identified baricitinib as possessing anti-viral and anti-cytokine efficacy. We now show a 71% (95% CI 0.15-0.58) mortality benefit in 83 patients with moderate-severe SARS-CoV-2 pneumonia with few drug-induced adverse events, including a large elderly cohort (median age 81 years). A further 48 cases with mild-moderate pneumonia recovered uneventfully. Using organotypic 3D cultures… Continue reading JAK inhibition reduces #SARS-CoV-2 #liver infectivity and modulates inflammatory responses to reduce morbidity and mortality
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