Role of neutrophil-epithelial interactions in SARS-CoV-2 infection


Authors: By Suchandrima BhowmikAug 15 2021Reviewed by Benedette Cuffari, M.Sc. The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which is the virus that causes coronavirus disease 2019 (COVID-19), is associated with high mortality and hospitalization rates. However, many patients who are infected with SARS-CoV-2 remain asymptomatic or develop mild symptoms. In a recent study published on the […]

Inflammatory brain injury higher in men with acute COVID-19, finds study


Download PDF Copy Authors: By Dr. Liji Thomas, MD The coronavirus disease 2019 (COVID-19) pandemic has been associated with both short- and long-term neurologic complications, including stroke, brain fog and persistent tiredness. A new study concludes that the effects of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) on the central nervous system are due to the […]

Pathophysiology of acute respiratory syndrome coronavirus 2 infection: a systematic literature review to inform EULAR points to consider


Authors: Aurélie Najm1, http://orcid.org/0000-0003-1105-5640Alessia Alunno2, Xavier Mariette3,4, http://orcid.org/0000-0001-6612-7336Benjamin Terrier5,6, http://orcid.org/0000-0003-2406-161XGabriele De Marco7,8, Jenny Emmel9, Laura Mason9, Dennis G McGonagle7,10 and http://orcid.org/0000-0002-8411-7972Pedro M Machado11,12,13 Abstract Background The SARS-CoV-2 pandemic is a global health problem. Beside the specific pathogenic effect of SARS-CoV-2, incompletely understood deleterious and aberrant host immune responses play critical roles in severe disease. Our objective was to summarise the available information on the pathophysiology […]

Complement Anaphylatoxins and Inflammatory Cytokines as Prognostic Markers for COVID-19 Severity and In-Hospital Mortality


Authors: Bandar Alosaimi1,2, Ayman Mubarak3, Maaweya E. Hamed3, Abdullah Z. Almutairi4, Ahmed A. Alrashed5, Abdullah AlJuryyan6, Mushira Enani7,Faris Q. Alenzi8 and Wael Alturaiki9* COVID-19 severity due to innate immunity dysregulation accounts for prolonged hospitalization, critical complications, and mortality. Severe SARS-CoV-2 infections involve the complement pathway activation for cytokine storm development. Nevertheless, the role of complement in COVID-19 immunopathology, complement‐modulating treatment strategies against COVID-19, […]

COVID-19 is, in the end, an endothelial disease


Authors: Peter Libby, Thomas Lüscher The vascular endothelium provides the crucial interface between the blood compartment and tissues, and displays a series of remarkable properties that normally maintain homeostasis. This tightly regulated palette of functions includes control of haemostasis, fibrinolysis, vasomotion, inflammation, oxidative stress, vascular permeability, and structure. While these functions participate in the moment-to-moment regulation […]

COVID-19 Vasculopathy: Mounting Evidence for an Indirect Mechanism of Endothelial Injury


Authors: Roberto F. Nicosia,∗∗ Giovanni Ligresti,† Nunzia Caporarello,‡ Shreeram Akilesh,∗ and Domenico Ribatti§ Patients with coronavirus disease 2019 (COVID-19) who are critically ill develop vascular complications characterized by thrombosis of small, medium, and large vessels. Dysfunction of the vascular endothelium due to the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection has been implicated in the pathogenesis of the COVID-19 […]

Endothelial dysfunction contributes to COVID-19-associated vascular inflammation and coagulopathy


Authors: Jun Zhang 1, Kristen M Tecson 1, Peter A McCullough 1 2 3 Great attention has been paid to endothelial dysfunction (ED) in coronavirus disease 2019 (COVID-19). There is growing evidence to suggest that the angiotensin converting enzyme 2 receptor (ACE2 receptor) is expressed on endothelial cells (ECs) in the lung, heart, kidney, and intestine, particularly in systemic vessels (small and […]

What is cytokine release syndrome?


Authors: Medical News Today Cytokine release syndrome (CRS) can cause a variety of symptoms, including fever, headaches, and nausea. The symptoms can become severe quickly. CRS occurs when the immune system responds too aggressively to an infection. It can also happen as a result of some types of immunotherapy. Treatments for CRS typically involve reducing the […]

What Is a Cytokine Storm? Doctors Explain How Some COVID-19 Patients’ Immune Systems Turn Deadly


Authors: Sarah Bradley The news cycle is heavily saturated with stress-inducing information about COVID-19, but one of the most worrying aspects so far has been the huge disparity in the way the novel coronavirus presents itself: Why do some people have no symptoms (or only mild ones), while others are so sick they require ventilation? There isn’t a definitive answer, but many […]

Cytokine Storm in COVID-19—Immunopathological Mechanisms, Clinical Considerations, and Therapeutic Approaches: The REPROGRAM Consortium Position Paper


Authors: Sonu Bhaskar,1,2,3,* Akansha Sinha,1,4 Maciej Banach,1,5,6,7 Shikha Mittoo,1,8 Robert Weissert,1,9 Joseph S. Kass,1,10 Santhosh Rajagopal,1,11 Anupama R. Pai,1,12 and Shelby Kutty1,13,14 Cytokine storm is an acute hyperinflammatory response that may be responsible for critical illness in many conditions including viral infections, cancer, sepsis, and multi-organ failure. The phenomenon has been implicated in critically ill patients infected with SARS-CoV-2, the novel coronavirus implicated in […]