Runaway immune reactions cause long COVID breathing problems


Author: Christopher Vaughan, Stanford Medicine 2023 Stanford Medicine researchers have found a mechanism behind one of the most common symptoms of long COVID — shortness of breath. Post COVID-19 breathing problems are caused by a condition known as lung fibrosis, when damaged lungs form scar tissue, which makes it difficult for lungs to expand and […]

Severe Respiratory Disease Among Children With and Without Medical Complexity During the COVID-19 Pandemic


Christina Belza, PhD, MN; Eleanor Pullenayegum, PhD, Katherine E. Nelson, MD, PhD; et al ,JAMA Netw Open. 2023;6(11):e2343318. doi:10.1001/jamanetworkopen.2023.43318 Key Points Question  Did rates and outcomes of severe respiratory illness change during the first 2 years of the pandemic, compared with prepandemic, among children with medical complexity and those without medical complexity? Findings  In this repeated cross-sectional study of 139 078 respiratory hospitalizations in Canada, there were more […]

C5aR1 signaling triggers lung immunopathology in COVID-19 through neutrophil extracellular traps


Bruna M. Silva,1,2 Giovanni F. Gomes,1 Flavio P. Veras,1 Seppe Cambier,3 Gabriel V.L. Silva,1,2 Andreza U. Quadros,1 Diego B. Caetité,1,2 Daniele C. Nascimento,1,2 Camilla M. Silva,1,2 Juliana C. Silva,1 Samara Damasceno,1 Ayda H. Schneider,1 Fabio Beretta,3 Sabrina S. Batah,4 Icaro M.S. Castro,5 Isadora M. Paiva,1 Tamara Rodrigues,1,2 Ana Salina,1,6 Ronaldo Martins,6,7 Guilherme C.M. Cebinelli,1,2 Naira L. Bibo,1 Daniel M. Jorge,6,7 Helder I. Nakaya,5 Dario S. Zamboni,1,6 Luiz O. Leiria,1,2 Alexandre T. Fabro,4 José C. Alves-Filho,1,2 Eurico Arruda,6,7 Paulo Louzada-Junior,1,8 Renê D. Oliveira,1,8 Larissa D. Cunha,1,6 Pierre […]

Mast cell activation in lungs during SARS-CoV-2 infection associated with lung pathology and severe COVID-19


Janessa Y.J. Tan,1 Danielle E. Anderson,2,3 Abhay P.S. Rathore,4 Aled O’Neill,1 Chinmay Kumar Mantri,1 Wilfried A.A. Saron,1 Cheryl Q.E. Lee,5 Chu Wern Cui,5 Adrian E.Z. Kang,1 Randy Foo,1 Shirin Kalimuddin,1,6 Jenny G. Low,1,6 Lena Ho,5 Paul Tambyah,7,8 Thomas W. Burke,9 Christopher W. Woods,9,10 Kuan Rong Chan,1 Jörn Karhausen,4,11 and Ashley L. St. John1,4,12,13 Published August 10, 2023 – 10.1172/JCI149834 Journal of Clinical Investigation Lung inflammation is a hallmark of Coronavirus disease 2019 (COVID-19) in patients […]

Beyond epithelial damage: vascular and endothelial contributions to idiopathic pulmonary fibrosis


James May, Jane A. Mitchell, and R. Gisli Jenkins, Published September 15, 2023 – 10.1172/JCI172058 Idiopathic pulmonary fibrosis (IPF) is a progressive scarring disease of the lung with poor survival. The incidence and mortality of IPF are rising, but treatment remains limited. Currently, two drugs can slow the scarring process but often at the expense of intolerable side […]

SARS-CoV-2 particles promote airway epithelial differentiation and ciliation


Julian Gonzalez-Rubio1 Vu Thuy Khanh Le-Trilling2 Lea Baumann1 Maria Cheremkhina1 Hannah Kubiza1 Anja E. Luengen1,3 Sebastian Reuter3 Christian Taube3 Stephan Ruetten4 Daniela Duarte Campos5 Christian G. Cornelissen1,6 Mirko Trilling2 Anja Lena Thiebes1, Front. Bioeng. Biotechnol., 02 November 2023 Sec. Tissue Engineering and Regenerative MedicineVolume 11 – 2023 | https://doi.org/10.3389/fbioe.2023.1268782 Introduction: The Severe acute respiratory syndrome coronavirus type 2 (SARS-CoV-2), which caused the coronavirus disease 2019 (COVID-19) pandemic, enters the […]

SARS-CoV-2 particles promote airway epithelial differentiation and ciliation


Julian Gonzalez-Rubio1* Vu Thuy Khanh Le-Trilling2 Lea Baumann1 Maria Cheremkhina1 Hannah Kubiza1 Anja E. Luengen1, 3 Sebastian Reuter3 Christian Taube3 Stephan Ruetten4 Daniela Duarte Campos5 Christian Cornelissen6 Mirko Trilling2 Anja Lena Thiebes1* Front. Bioeng. Biotechnology. , Sec. Tissue Engineering and Regenerative Medicine, Volume 11 – 2023 | doi: 10.3389/fbioe.2023.1268782 The Severe acute respiratory syndrome coronavirus type 2 (SARS-CoV-2), which caused the coronavirus disease 2019 (COVID-19) pandemic, enters the […]

Spectrum of Fibrotic Lung Diseases


Marlies Wijsenbeek, M.D., and Vincent Cottin, M.D.  New England Journal of Medicine 2023 Diffuse parenchymal lung diseases encompass a large number of conditions, with a wide range of causes, clinical manifestations, and imaging and pathological features, as well as variable outcomes. Despite the intrinsic heterogeneity of this group of diseases, in most of them, the […]

Unraveling long COVID: Here’s what scientists who study the illness want to find out


September 9, 2023, By Will Stone NPR Newsletter Researchers looking for root causes of long COVID work in the autopsy suite inside the Clinical Center at the National Institute of Health in Bethesda, Maryland. Valerie Plesch/Bloomberg via Getty Images For people suffering from long COVID’s often disabling symptoms, including intense fatigue, breathing troubles, cognitive issues and heart […]

Endothelial dysfunction in COVID-19: an overview of evidence, biomarkers, mechanisms and potential therapies


Suo-wen Xu, Iqra Ilyas & Jian-ping Weng  Acta Pharmacologica Sinica volume 44, pages695–709 (2023) Cite this article 17 October 2022 Abstract The fight against coronavirus disease 2019 (COVID-19) caused by SARS-CoV-2 infection is still raging. However, the pathophysiology of acute and post-acute manifestations of COVID-19 (long COVID-19) is understudied. Endothelial cells are sentinels lining the innermost layer of blood vessel that […]