4.6 Review

Damage to endothelial barriers and its contribution to long COVID

Related references

Note: Only part of the references are listed.
Article Medicine, General & Internal

Long-term (180-Day) Outcomes in Critically Ill Patients With COVID-19 in the REMAP-CAP Randomized Clinical Trial

Alisa M. Higgins et al.

Summary: The longer-term effects of therapies for critically ill COVID-19 patients are unknown. In this study, 4869 patients were randomized to receive different interventions, and it was found that treatment with IL-6 receptor antagonists and antiplatelet agents significantly improved survival rates after 180 days. These findings suggest that most therapies have consistent effects over a 6-month period.

JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION (2023)

Article Infectious Diseases

Effectiveness of BNT162b2 and CoronaVac COVID-19 vaccination against asymptomatic and symptomatic infection of SARS-CoV-2 omicron BA.2 in Hong Kong: a prospective cohort study

Nicole Ngai Yung Tsang et al.

Summary: This study investigated the effectiveness of the BNT162b2 and CoronaVac vaccines against Omicron variant infections. The results showed that the use of booster doses of these vaccines significantly reduced the risk of Omicron variant infections.

LANCET INFECTIOUS DISEASES (2023)

Review Microbiology

Long COVID: major findings, mechanisms and recommendations

Hannah E. Davis et al.

Summary: Long COVID is a common and debilitating illness that affects at least 10% of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infections, with a wide range of symptoms and impacts on multiple organ systems. There are an estimated 65 million individuals worldwide with long COVID, and the number of cases is increasing daily. Current diagnostic and treatment options are insufficient, and there is a need for clinical trials to address leading hypotheses. Future research should account for biases and testing issues, build on viral-onset research, include marginalized populations, and meaningfully engage patients.

NATURE REVIEWS MICROBIOLOGY (2023)

Article Peripheral Vascular Disease

Persistent capillary rarefication in long COVID syndrome

Irina Osiaevi et al.

Summary: This observational study found that capillary rarefaction persists for up to 18 months after COVID-19 infection. Although the dimensions of the glycocalyx were comparable to those of healthy individuals, the vascular density, particularly in very small capillaries, was significantly decreased. The number of perfused capillaries in long COVID patients was similar to that of critically ill COVID-19 patients and did not respond adequately to local variations in tissue metabolic demand.

ANGIOGENESIS (2023)

Article Hematology

Enoxaparin for outpatients with COVID-19: 90-day results from the randomised, open-label, parallel-group, multinational, phase III OVID trial

Davide Voci et al.

Summary: The benefits of early thromboprophylaxis in symptomatic COVID-19 outpatients remain unclear. This study presents the 90-day results from the OVID phase III trial, which showed that early thromboprophylaxis with enoxaparin did not improve the course of COVID-19 in terms of hospitalization, death, or resolution of symptoms.

THROMBOSIS RESEARCH (2023)

Review Gastroenterology & Hepatology

Gut microbiota in COVID-19: key microbial changes, potential mechanisms and clinical applications

Raphaela Lau et al.

Summary: The gastrointestinal tract is involved in COVID-19 and changes in the gut microbiota may be related to disease outcomes and host immune dysregulation. This article discusses the interactions between SARS-CoV-2 infection and the gut microbiota, key microbial changes, and potential modulatory strategies.

NATURE REVIEWS GASTROENTEROLOGY & HEPATOLOGY (2023)

Article Peripheral Vascular Disease

Inflammation and vascular remodeling in COVID-19 hearts

Christopher Werlein et al.

Summary: In this multicentre study, researchers performed a comprehensive analysis of heart samples from autopsies of COVID-19 patients and discovered that cardiac involvement in COVID-19 is a macrophage-driven inflammatory process that is distinct from the typical anti-viral inflammatory responses. The study also found the presence of intussusceptive angiogenesis in the affected hearts, which is a key characteristic of vascular remodeling in COVID-19 pneumonia.

ANGIOGENESIS (2023)

Article Immunology

Prevalence of Post-COVID Condition 12 Weeks After Omicron Infection Compared With Negative Controls and Association With Vaccination Status

Mayssam Nehme et al.

Summary: This study evaluates the prevalence of symptoms and functional impairment 12 weeks after Omicron variants (BA.1 and BA.2) infection and compares it with negative controls. The results show that the prevalence of symptoms after 12 weeks of Omicron infection is relatively low, and vaccination can reduce the occurrence of post-COVID symptoms.

CLINICAL INFECTIOUS DISEASES (2023)

Article Critical Care Medicine

The Bronchial Circulation in COVID-19 Pneumonia

Maximilian Ackermann et al.

AMERICAN JOURNAL OF RESPIRATORY AND CRITICAL CARE MEDICINE (2022)

Review Hematology

Vasculopathy in COVID-19

Robert Flaumenhaft et al.

Summary: This article reviews the vascular pathology of COVID-19, focusing on the role of endothelial cells in the infection process and the impact of inflammatory and prothrombotic changes on endothelial cell function. The consequences of COVID-19 vascular involvement on organ systems are also discussed, with reference to vascular responses seen in other severe respiratory diseases caused by viruses. This conceptual framework provides context for interpreting new information on the vascular complications of COVID-19.

BLOOD (2022)

Article Biochemistry & Molecular Biology

Multiple early factors anticipate post-acute COVID-19 sequelae

Yapeng Su et al.

Summary: Post-acute sequelae of COVID-19 (PASC) is an emerging global crisis, and the quantifiable risk factors and biological associations are not well understood. In this study, a deep multi-omic investigation was conducted on 309 COVID-19 patients, and four PASC-anticipating risk factors were identified at the time of initial diagnosis. The study also observed changes in immune states during recovery from COVID-19.
Letter Cardiac & Cardiovascular Systems

Myocardial work and vascular dysfunction are partially improved at 12 months after COVID-19 infection

Ignatios Ikonomidis et al.

EUROPEAN JOURNAL OF HEART FAILURE (2022)

Article Gastroenterology & Hepatology

Gut microbiota dynamics in a prospective cohort of patients with post-acute COVID-19 syndrome

Qin Liu et al.

Summary: This study investigated the link between gut microbiome composition and post-acute COVID-19 syndrome. The results showed that the gut microbiome of patients with long-term complications of COVID-19 differed significantly from that of non-COVID-19 controls and patients without post-acute COVID-19 syndrome.
Article Immunology

Immuno-proteomic profiling reveals aberrant immune cell regulation in the airways of individuals with ongoing post-COVID-19 respiratory disease

Bavithra Vijayakumar et al.

Summary: Patients with persistent lung disease after COVID-19 discharge exhibit abnormal immune-proteomic profiles in the airways, characterized by elevated levels of proteins associated with cell death, tissue repair, and epithelial injury. The severity of airway dysfunction correlates with increased cytotoxic lymphocyte counts, while more extensive lung abnormalities are associated with elevated B cell numbers and altered monocyte subsets. Long-term follow-up indicates that these abnormalities resolve over time.

IMMUNITY (2022)

Article Medicine, General & Internal

Rivaroxaban versus no anticoagulation for post-discharge thromboprophylaxis after hospitalisation for COVID-19 (MICHELLE): an open-label, multicentre, randomised, controlled trial

Eduardo Ramacciotti et al.

Summary: This study investigated the efficacy of rivaroxaban thromboprophylaxis for 35 days in patients discharged after hospitalisation due to COVID-19. The results showed that this treatment significantly reduced the incidence of venous thromboembolism, with no major bleeding events reported.

LANCET (2022)

Article Immunology

Immunological dysfunction persists for 8 months following initial mild-to-moderate SARS-CoV-2 infection

Chansavath Phetsouphanh et al.

Summary: Phetsouphanh and colleagues found that individuals with long COVID exhibit persistent activation of the immune system even 8 months after infection. They also identified a set of analytes associated with long COVID, suggesting potential opportunities for prevention and treatment.

NATURE IMMUNOLOGY (2022)

Review Immunology

Pathological sequelae of long-haul COVID

Saurabh Mehandru et al.

Summary: This review examines the underlying pathophysiological mechanisms of post-COVID-19 syndromes, including persistent inflammation, induced autoimmunity, and putative viral reservoirs. The disease is called 'long-haul COVID' or 'post-COVID-19 syndrome', and clinical symptoms include fatigue, dyspnea, and neuropsychiatric syndromes.

NATURE IMMUNOLOGY (2022)

Review Cardiac & Cardiovascular Systems

Potential long-term effects of SARS-CoV-2 infection on the pulmonary vasculature: a global perspective

Sarah Halawa et al.

Summary: This article discusses the potential causes of COVID-19 heterogeneity and summarizes the pathobiology of the disease, with a focus on the role of the pulmonary vasculature in the acute stage and the potential for developing chronic pulmonary hypertension.

NATURE REVIEWS CARDIOLOGY (2022)

Letter Medicine, General & Internal

Lung Transplantation for Covid-19-Related Respiratory Failure in the United States

Amy Roach et al.

NEW ENGLAND JOURNAL OF MEDICINE (2022)

Editorial Material Multidisciplinary Sciences

Nervous system consequences of COVID-19

Serena Spudich et al.

Summary: Understanding the pathophysiological mechanisms behind neurological symptoms is crucial.

SCIENCE (2022)

Article Hematology

Hypercoagulability, endotheliopathy, and inflammation approximating 1 year after recovery: Assessing the long-term outcomes in COVID-19 patients

Bingwen Eugene Fan et al.

Summary: Sustained hypercoagulability and endotheliopathy persist in convalescent COVID-19 patients for several months after recovery. Hemostatic, endothelial, and inflammatory abnormalities are still detectable in these patients compared to their pre-recovery state. This finding is important for long-term anticoagulation therapy and follow-up of recovered patients.

AMERICAN JOURNAL OF HEMATOLOGY (2022)

Article Critical Care Medicine

COVID-19-associated Lung Microvascular Endotheliopathy A From the Bench Perspective

Jeremie Joffre et al.

Summary: This study found that COVID-19 infection can lead to endothelial dysfunction and increased permeability. Additionally, factors in the patients' serum can also cause abnormalities in endothelial cell function. These findings suggest that both systemic factors acting on lung endothelial cells and viral infection of endothelial cells play a role in COVID-19-associated endotheliopathy.

AMERICAN JOURNAL OF RESPIRATORY AND CRITICAL CARE MEDICINE (2022)

Article Clinical Neurology

Prolonged Unconsciousness is Common in COVID-19 and Associated with Hypoxemia

Greer Waldrop et al.

Summary: The study aimed to estimate the time to recovery of command-following in severe COVID-19 patients and investigate the association between hypoxemia and time to recovery. The findings showed that survivors commonly regain consciousness weeks after cessation of mechanical ventilation, and longer recovery periods are associated with more severe hypoxemia.

ANNALS OF NEUROLOGY (2022)

Review Hematology

Clinical features of thrombosis and bleeding in COVID-19

Mari R. Thomas et al.

Summary: Infection with the SARS-CoV-2 virus, resulting in COVID-19 disease, is associated with a higher risk of thrombosis, especially venous thrombosis. Thrombosis, including pulmonary thrombi and other venous thromboses, is more common in COVID-19 patients compared to other hospitalized patients. Arterial thrombosis is less common but still documented. Risk factors for thrombosis in COVID-19 patients include duration of symptoms before admission and specific laboratory parameters. Thromboprophylaxis is recommended for all COVID-19 patients upon admission, but the dose and duration of treatment are still debated.

BLOOD (2022)

Article Cardiac & Cardiovascular Systems

Vascular Dysfunction of COVID-19 Is Partially Reverted in the Long-Term

Luca Zanoli et al.

Summary: COVID-19 has mid- and long-term effects on vascular and cardiac autonomic function, with increased aortic pulse wave velocity and improved arterial stiffness.

CIRCULATION RESEARCH (2022)

Article Cardiac & Cardiovascular Systems

Cerebrovascular Complications of COVID-19 and COVID-19 Vaccination

Manuela De Michele et al.

Summary: The risk of stroke and cerebrovascular disease complicating SARS-CoV-2 infection has been extensively reported. The rapid development and mass vaccination of DNA and mRNA vaccines against SARS-CoV-2 have led to rare but catastrophic cases of thrombosis. This review provides an overview of stroke and cerebrovascular complications of SARS-CoV-2 infection, as well as vaccinations, with a focus on vaccine-induced immune thrombotic thrombocytopenia. A therapeutic protocol is proposed based on available data.

CIRCULATION RESEARCH (2022)

Article Infectious Diseases

Post-COVID-19 syndrome and humoral response association after 1 year in vaccinated and unvaccinated patients

Maddalena Peghin et al.

Summary: This study investigated the impact of vaccination and humoral responses on post-COVID-19 syndrome 1 year after the onset of SARS-CoV-2 infection. The results showed that vaccination was not associated with worsening of post-COVID-19 symptoms, while high titres of non-RBD SARS-CoV-2 IgG induced by natural infection may play a role in long-haul COVID-19.

CLINICAL MICROBIOLOGY AND INFECTION (2022)

Article Respiratory System

Clinical, radiological and pathological findings in patients with persistent lung disease following SARS-CoV-2 infection

Claudia Ravaglia et al.

Summary: This study analyzes the morphological and immunomolecular features of lung tissue in patients with post-COVID-19 lung disease. Different phenotypes with potentially different underlying pathogenic mechanisms have been identified, providing a better understanding of lung abnormalities after SARS-CoV-2 infection.

EUROPEAN RESPIRATORY JOURNAL (2022)

Article Gastroenterology & Hepatology

Postacute COVID-19 is Characterized by Gut Viral Antigen Persistence in Inflammatory Bowel Diseases

Andreas Zollner et al.

Summary: The study investigates whether the persistence of SARS-CoV-2 antigen in infected tissues is responsible for postacute COVID-19 syndrome. The results suggest that viral antigen persistence may be the underlying cause of postacute COVID-19 and this concept should be validated in controlled clinical trials.

GASTROENTEROLOGY (2022)

Article Infectious Diseases

Risk factors and disease profile of post-vaccination SARS-CoV-2 infection in UK users of the COVID Symptom Study app: a prospective, community-based, nested, case-control study

Michela Antonelli et al.

Summary: Despite the high efficacy of COVID-19 vaccines, some individuals still become infected with SARS-CoV-2 post-vaccination. Risk factors for post-vaccination infection include frailty in older adults, living in deprived areas, and obesity. Vaccination is associated with reduced odds of severe symptoms and long-duration illness. The findings suggest the importance of targeting at-risk populations and maintaining infection control measures even in vaccinated individuals.

LANCET INFECTIOUS DISEASES (2022)

Article Medicine, General & Internal

Respiratory dysfunction three months after severe COVID-19 is associated with gut microbiota alterations

Beate Vestad et al.

Summary: Respiratory dysfunction after COVID-19 is associated with altered gut microbiota and persistently elevated LBP levels. Our results suggest a potential gut-lung axis that should be further investigated in relation to long-term pulmonary dysfunction and long COVID.

JOURNAL OF INTERNAL MEDICINE (2022)

Article Biochemistry & Molecular Biology

Long COVID after breakthrough SARS-CoV-2 infection

Ziyad Al-Aly et al.

Summary: This study analyzed the US Department of Veterans Affairs national healthcare databases to investigate the occurrence of Long COVID and death risk after breakthrough SARS-CoV-2 infection. The findings showed that vaccination significantly reduced the risk of death and post-acute sequelae but did not eliminate them completely. These results underscore the importance of further research on prevention and post-acute care for breakthrough infections.

NATURE MEDICINE (2022)

Review Microbiology

SARS-CoV-2 pathogenesis

Mart M. Lamers et al.

Summary: This Review explores the recent clinical and experimental advancements in understanding the pathogenesis of SARS-CoV-2, its interactions with host cells, and the role of the immune system in the development of severe disease, with a focus on the mechanisms underlying COVID-19-associated ARDS. The findings suggest that SARS-CoV-2 can infect the lower respiratory tract, causing alveolar damage and dysfunctional immune responses, leading to inflammation and immunopathology. These insights may contribute to the development of new therapeutic interventions against COVID-19.

NATURE REVIEWS MICROBIOLOGY (2022)

Article Psychology, Clinical

Post-acute sequelae of SARS-CoV-2 infection: relationship of central nervous system manifestations with physical disability and systemic inflammation

Geraldo F. Busatto et al.

Summary: A study was conducted to investigate the patterns of symptom co-occurrence and their biological correlates in individuals with post-acute sequelae of SARS-CoV-2 infection. The results showed that fatigue, psychiatric, and cognitive symptoms were highly discriminative and associated with physical disability and persistent systemic inflammation.

PSYCHOLOGICAL MEDICINE (2022)

Review Respiratory System

Parenchymal lung abnormalities following hospitalisation for COVID-19 and viral pneumonitis: a systematic review and meta-analysis

Laura Fabbri et al.

Summary: This study assessed the proportion of lung disease in COVID-19 survivors by analyzing chest CT scans and pulmonary function tests. The findings suggest that pulmonary fibrosis and other sequelae are common in COVID-19 patients during follow-up. However, caution should be exercised in interpreting the estimates due to heterogeneity and differences in study populations.

THORAX (2022)

Article Pharmacology & Pharmacy

Endothelial dysfunction in acute and long standing COVID-19: A prospective cohort study

Evangelos Oikonomou et al.

Summary: In this study, the immediate, intermediate, and long-term effects of COVID-19 on endothelial function were assessed. The results showed that COVID-19 patients developed endothelial dysfunction, which improved over a 6-month follow-up but remained impaired compared to healthy controls. Further research is needed to investigate whether the chronic dysregulation of endothelial function following COVID-19 is associated with a residual risk for cardiovascular and thrombotic events.

VASCULAR PHARMACOLOGY (2022)

Article Microbiology

Nutritional Modulation of Gut Microbiota Alleviates Severe Gastrointestinal Symptoms in a Patient with Post-Acute COVID-19 Syndrome

Ying Wang et al.

Summary: This study demonstrates the feasibility of alleviating gastrointestinal symptoms in patients with post-acute COVID-19 syndrome through microbiota-targeted nutritional intervention.
Article Multidisciplinary Sciences

Neuropathology and virus in brain of SARS-CoV-2 infected non-human primates

Ibolya Rutkai et al.

Summary: COVID-19 infection can lead to neurological manifestations, and animal models can provide insights into the underlying mechanisms. In this study, neuroinflammation, microhemorrhages, and brain hypoxia were observed in SARS-CoV-2 infected non-human primates, even in those without severe respiratory disease. These findings are important for understanding the neuropathogenesis of SARS-CoV-2 infection and may help explain the neurological symptoms associated with long COVID.

NATURE COMMUNICATIONS (2022)

Article Multidisciplinary Sciences

Course of post COVID-19 disease symptoms over time in the ComPaRe long COVID prospective e-cohort

Viet-Thi Tran et al.

Summary: About 10% of people infected by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) experience post COVID-19 disease. This study analyzed data from a French disease cohort and found that among patients symptomatic after 2 months, 85% still reported symptoms one year after their symptom onset. Symptoms showed different trends over time, with some decreasing, some remaining stable, and some increasing in prevalence. The study provides important insights into the natural history of post COVID-19 disease.

NATURE COMMUNICATIONS (2022)

Article Medicine, General & Internal

Trajectory of long covid symptoms after covid-19 vaccination: community based cohort study

Daniel Ayoubkhani et al.

Summary: COVID-19 vaccination was associated with a decrease in the likelihood of long covid symptoms, and evidence suggested sustained improvement after a second dose, although longer follow-up is needed.

BMJ-BRITISH MEDICAL JOURNAL (2022)

Review Microbiology

Intestinal Damage in COVID-19: SARS-CoV-2 Infection and Intestinal Thrombosis

Xiaoming Wu et al.

Summary: The intestinal tract is a major site of extrapulmonary infection in COVID-19, and viral infection and thrombosis can damage the gut-blood barrier, leading to intestinal injury and increased disease severity. Early prophylactic antithrombotic therapy can reduce these damages.

FRONTIERS IN MICROBIOLOGY (2022)

Editorial Material Critical Care Medicine

Long COVID: systemic inflammation and obesity as therapeutic targets

Lidiane L. Florencio et al.

LANCET RESPIRATORY MEDICINE (2022)

Article Critical Care Medicine

Clinical characteristics with inflammation profiling of long COVID and association with 1-year recovery following hospitalisation in the UK: a prospective observational study

Rachael A. Evans et al.

Summary: This study aimed to describe recovery one year after hospital discharge for COVID-19 and identify potential therapeutic targets by analyzing inflammatory profiles. The results showed that a significant proportion of patients did not fully recover one year after discharge. Female sex, obesity, and invasive mechanical ventilation were associated with lower likelihood of full recovery. Inflammation and obesity may be treatable traits that need further investigation in clinical trials.

LANCET RESPIRATORY MEDICINE (2022)

Article Cardiac & Cardiovascular Systems

Sulodexide Significantly Improves Endothelial Dysfunction and Alleviates Chest Pain and Palpitations in Patients With Long-COVID-19: Insights From TUN-EndCOV Study

Salma Charfeddine et al.

Summary: The study found that Sulodexide significantly improves endothelial dysfunction in long-term COVID-19 patients and alleviates chest pain and palpitations.

FRONTIERS IN CARDIOVASCULAR MEDICINE (2022)

Article Cardiac & Cardiovascular Systems

Impact of breakthrough COVID-19 cases during the omicron wave on vascular health and cardiac autonomic function in young adults

Rachel J. Skow et al.

Summary: We demonstrate for the first time that breakthrough cases of COVID-19 during the Omicron wave do not impact vascular health and cardiac autonomic function in young adults. These findings are promising considering previous researches showing impaired vascular and autonomic function following previous variants of COVID-19. Overall, these data demonstrate that the recent Omicron variant is not detrimental to cardiovascular health in young, otherwise healthy, vaccinated adults.

AMERICAN JOURNAL OF PHYSIOLOGY-HEART AND CIRCULATORY PHYSIOLOGY (2022)

Letter Critical Care Medicine

Long-Term Impairments Are Most Pronounced in Critically Ill Patients with COVID-19 with Severe Obesity

Emma Kooistra et al.

AMERICAN JOURNAL OF RESPIRATORY AND CRITICAL CARE MEDICINE (2022)

Article Clinical Neurology

Neurovascular injury with complement activation and inflammation in COVID-19

Myoung Hwa Lee et al.

Summary: This autopsy study reveals the underlying mechanisms of brain microvascular pathology in patients with COVID-19, including vascular leakage, platelet aggregation, neuroinflammation, and neuronal injury, which are likely initiated by antibody-mediated cytotoxicity against brain endothelial cells.

BRAIN (2022)

Article Cardiac & Cardiovascular Systems

Prevalence of symptoms, comorbidities, fibrin amyloid microclots and platelet pathology in individuals with Long COVID/Post-Acute Sequelae of COVID-19 (PASC)

Etheresia Pretorius et al.

Summary: Fibrin amyloid microclots and platelet hyperactivation in South African patients with Long COVID/PASC may be responsible for the persistent symptoms. Hypertension, high cholesterol levels, cardiovascular disease, and type 2 diabetes mellitus were found to be the most important comorbidities. The study highlights the need for further research on the pathophysiology and treatment of Long COVID/PASC.

CARDIOVASCULAR DIABETOLOGY (2022)

Article Multidisciplinary Sciences

Viral load dynamics of SARS-CoV-2 Delta and Omicron variants following multiple vaccine doses and previous infection

Yonatan Woodbridge et al.

Summary: This study demonstrates that recent vaccination reduces Omicron viral load, but its effect wanes rapidly. In contrast, recovered COVID-19 individuals show a significantly slower waning rate. Therefore, a reassessment of future booster campaigns is needed.

NATURE COMMUNICATIONS (2022)

Article Multidisciplinary Sciences

Post-covid medical complaints following infection with SARS-CoV-2 Omicron vs Delta variants

Karin Magnusson et al.

Summary: According to a study on a population in Norway, individuals infected with the Omicron variant have a similar risk of experiencing post-COVID complaints as those infected with the Delta variant, during the acute, sub-acute, and chronic phases. However, at >=90 days after testing positive, individuals infected with Omicron have a lower risk of any complaint and musculoskeletal pain compared to those infected with Delta.

NATURE COMMUNICATIONS (2022)

Article Biochemistry & Molecular Biology

Long COVID: Association of Functional Autoantibodies against G-Protein-Coupled Receptors with an Impaired Retinal Microcirculation

Charlotte Szewczykowski et al.

Summary: The presence of GPCR-AAbs in long COVID patients may be linked to impaired retinal capillary microcirculation, potentially reflecting systemic microcirculation and leading to clinical symptoms.

INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES (2022)

Letter Medicine, General & Internal

Association Between BNT162b2 Vaccination and Long COVID After Infections Not Requiring Hospitalization in Health Care Workers

Elena Azzolini et al.

JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION (2022)

Letter Medicine, General & Internal

Risk of long COVID associated with delta versus omicron variants of SARS-CoV-2

Michela Antonelli et al.

LANCET (2022)

Article Multidisciplinary Sciences

SARS-CoV-2 Omicron variant causes mild pathology in the upper and lower respiratory tract of hamsters

Federico Armando et al.

Summary: This study compares virus spread and pathology in Syrian golden hamsters infected with different variants of SARS-CoV-2 and finds that the Omicron variant causes milder pathology.

NATURE COMMUNICATIONS (2022)

Article Cardiac & Cardiovascular Systems

Early antithrombotic post-discharge therapy using prophylactic DOAC or dipyridamole improves long-term survival and cardiovascular outcomes in hospitalized COVID-19 survivors

Lukas J. Motloch et al.

Summary: In COVID-19 survivors, early post-discharge prophylactic treatment with direct oral anticoagulation or dipyridamole can improve mid- and long-term cardiovascular events and all-cause mortality.

FRONTIERS IN CARDIOVASCULAR MEDICINE (2022)

Letter Cardiac & Cardiovascular Systems

Persisting Platelet Activation and Hyperactivity in COVID-19 Survivors

Remy Martins-Goncalves et al.

CIRCULATION RESEARCH (2022)

Article Biochemistry & Molecular Biology

Long-term neurologic outcomes of COVID-19

Evan Xu et al.

Summary: Individuals with COVID-19 have an increased risk of developing a range of neurologic disorders at 12 months, even if they were not hospitalized during the acute phase of the infection.

NATURE MEDICINE (2022)

Article Hematology

Relative Hypercoagulopathy of the SARS-CoV-2 Beta and Delta Variants when Compared to the Less Severe Omicron Variants Is Related to TEG Parameters, the Extent of Fibrin Amyloid Microclots, and the Severity of Clinical Illness

Lize M. Grobbelaar et al.

Summary: The newer Omicron variants of SARS-CoV-2 are more transmissible but less virulent compared to earlier variants. Clotting parameters associated with Omicron variants are significantly raised but still lower than more severe variants like beta and delta.

SEMINARS IN THROMBOSIS AND HEMOSTASIS (2022)

Article Immunology

The state of complement in COVID-19

Behdad Afzali et al.

Summary: Hyperactivation of the complement system is implicated in the pathology of COVID-19, with potential therapeutic benefits through complement inhibition. Latest research progress suggests targeting complement components for treatment may be beneficial in mitigating excessive inflammation and thrombosis in severe COVID-19 cases.

NATURE REVIEWS IMMUNOLOGY (2022)

Article Peripheral Vascular Disease

Microvascular dysfunction in COVID-19: the MYSTIC study

Alexandros Rovas et al.

Summary: Our study found that COVID-19 patients have reduced microvascular density, slower red blood cell velocity, and glycocalyx damage. Elevated markers of endothelial dysfunction are associated with disease severity and can predict 60-day in-hospital mortality.

ANGIOGENESIS (2021)

Article Radiology, Nuclear Medicine & Medical Imaging

Lung and kidney perfusion deficits diagnosed by dual-energy computed tomography in patients with COVID-19-related systemic microangiopathy

Ilkay S. Idilman et al.

Summary: There is evidence of thrombotic events in COVID-19 patients, with a proportion showing lung and kidney perfusion abnormalities, suggesting systemic microangiopathy with micro-thrombosis. These findings may help in managing COVID-19 patients, including early indications of thromboprophylaxis and optimizing oxygenation strategies.

EUROPEAN RADIOLOGY (2021)

Article Clinical Neurology

The Impact of SARS-CoV-2 on Stroke Epidemiology and Care: A Meta-Analysis

Aristeidis H. Katsanos et al.

Summary: This study found that patients with SARS-CoV-2 infection have an increased risk of ischemic stroke and higher mortality rates.

ANNALS OF NEUROLOGY (2021)

Article Biochemistry & Molecular Biology

SARS-CoV-2 infection triggers profibrotic macrophage responses and lung fibrosis

Daniel Wendisch et al.

Summary: Analysis of pulmonary immune responses and lung pathology in patients with COVID-19 ARDS revealed an accumulation of profibrotic macrophages and similarities with macrophage populations in idiopathic pulmonary fibrosis. Exposure to SARS-CoV-2 induced a profibrotic phenotype in human monocytes, suggesting a mechanistic link between the virus and fibroproliferative ARDS.
Article Respiratory System

Cardiopulmonary recovery after COVID-19: an observational prospective multicentre trial

Thomas Sonnweber et al.

Summary: A study found that some COVID-19 patients still experienced persistent symptoms and lung function impairment 100 days after the onset of the disease, but there was significant improvement in symptoms and cardiopulmonary status over time.

EUROPEAN RESPIRATORY JOURNAL (2021)

Article Multidisciplinary Sciences

Evolution of antibody immunity to SARS-CoV-2

Christian Gaebler et al.

Summary: After infection with SARS-CoV-2, antibody levels against the spike protein decrease significantly, but the number of memory B cells remain unchanged, indicating an evolving humoral response at 6.2 months after infection.

NATURE (2021)

Letter Medicine, General & Internal

Microvascular Injury in the Brains of Patients with Covid-19

Daniel P. Perl et al.

NEW ENGLAND JOURNAL OF MEDICINE (2021)

Review Physiology

THE COMPLEXITY OF ALZHEIMER'SDISEASE: AN EVOLVING PUZZLE

Camilla Ferrari et al.

Summary: The history of Alzheimer's disease dates back to 1907, but it wasn't until the end of the century that the components of pathological hallmarks and genetic subtypes were identified, leading to the first pathogenic hypothesis. Advances in biomarkers and technology have shifted the concept of AD from a static view to a biological entity that can manifest in various ways. Research shows that AD is heterogeneous in terms of amyloid composition, tau distribution, clinical symptoms, and genetic background, making it difficult to explain with a single pathological process.

PHYSIOLOGICAL REVIEWS (2021)

Review Critical Care Medicine

Beyond the clot: perfusion imaging of the pulmonary vasculature after COVID-19

Ranju T. Dhawan et al.

Summary: COVID-19 is associated with pulmonary thrombosis and thromboembolism, potentially leading to pulmonary fibrotic damage and long-term consequences. A proactive follow-up strategy is needed to evaluate residual clot burden, small vessel injury, and potential hemodynamic sequelae. A nuanced and physiological approach to follow-up imaging is crucial for informing therapeutic strategies in case of clinically significant pulmonary vascular sequelae.

LANCET RESPIRATORY MEDICINE (2021)

Article Hematology

Vascular Endothelial Damage in the Pathogenesis of Organ Injury in Severe COVID-19

Annabelle Dupont et al.

Summary: The study investigated the association between endothelial damage and immune dysregulation with organ failure, thrombus formation, and death in 82 patients with COVID-19, finding a direct role of endotheliopathy in organ failure and an association between dysregulated immune response and respiratory failure, liver injury, and death. Thrombi from COVID-19 patients on extracorporeal membrane oxygenation showed increased neutrophil accumulation and neutrophil extracellular traps compared to non-COVID-19 thrombi.

ARTERIOSCLEROSIS THROMBOSIS AND VASCULAR BIOLOGY (2021)

Article Respiratory System

Altered pulmonary blood volume distribution as a biomarker for predicting outcomes in COVID-19 disease

Michael F. Morris et al.

Summary: Evidence suggests that a decrease in BV5% on chest CT scans may predict adverse clinical outcomes in COVID-19 patients. A BV5% threshold below 25% was associated with increased odds ratios for mortality, intubation, and the composite of mortality or intubation, indicating its potential as a novel biomarker for predicting outcomes in these patients.

EUROPEAN RESPIRATORY JOURNAL (2021)

Article Cell Biology

Lung epithelial and endothelial damage, loss of tissue repair, inhibition of fibrinolysis, and cellular senescence in fatal COVID-19

Felice D'Agnillo et al.

Summary: This study identified significant pulmonary pathological features in fatal COVID-19 cases, including progressive diffuse alveolar damage, excessive thrombosis, and delayed pulmonary tissue and vascular remodeling. Acute damage at the alveolar-capillary barrier was characterized by loss of surfactant protein expression and injury to various types of cells, such as alveolar epithelial cells and endothelial cells. These findings provide insights into potential therapeutic targets for treating SARS-CoV-2 infection-induced respiratory distress.

SCIENCE TRANSLATIONAL MEDICINE (2021)

Article Virology

Indications of Persistent Glycocalyx Damage in Convalescent COVID-19 Patients: A Prospective Multicenter Study and Hypothesis

Richard Vollenberg et al.

Summary: This study identifies signs of endothelial damage in convalescent COVID-19 patients after mild disease progression without hospitalization, consistent with studies showing evidence of persistent endothelial damage after severe or critical disease progression. Further research should investigate endothelial damage in convalescent COVID-19 patients.

VIRUSES-BASEL (2021)

Article Multidisciplinary Sciences

Burdens of post-acute sequelae of COVID-19 by severity of acute infection, demographics and health status

Yan Xie et al.

Summary: The study analyzed data from the US Department of Veterans Affairs healthcare databases to estimate the burden of Post-Acute Sequelae of SARS-CoV-2 infection (PASC), finding approximately 73.43 PASC cases per 1000 persons at 6 months. The burden of PASC varied by demographic groups and baseline health status, with more severe acute infection leading to higher burden. The study highlights the substantial burden of PASC and the importance of considering different population groups when planning healthcare strategies.

NATURE COMMUNICATIONS (2021)

News Item Medicine, General & Internal

Covid-19: Hospital admission 50-70% less likely with omicron than delta, but transmission a major concern

Elisabeth Mahase

BMJ-BRITISH MEDICAL JOURNAL (2021)

Article Clinical Neurology

COVID-19 neuropathology at Columbia University Irving Medical Center/New York Presbyterian Hospital

Kiran T. Thakur et al.

Summary: Many patients with SARS-CoV-2 infection exhibit neurological signs and symptoms, but autopsy results show that most brains have low levels of detectable virus and it does not correlate with the histopathological alterations.

BRAIN (2021)

Letter Cardiac & Cardiovascular Systems

SARS-CoV-2 Spike Protein Impairs Endothelial Function via Downregulation of ACE 2

Yuyang Lei et al.

CIRCULATION RESEARCH (2021)

Article Gastroenterology & Hepatology

Gut as viral reservoir: lessons from gut viromes, HIV and COVID-19

Markus F. Neurath et al.

Article Immunology

Immune signatures underlying post-acute COVID-19 lung sequelae

I. S. Cheon et al.

Summary: Through high-dimensional characterization of the pathophysiological and immune traits of aged COVID-19 convalescents, it was found that chronic lung impairment was accompanied by persistent respiratory immune alterations, with functional SARS-CoV-2-specific memory T and B cells enriched at the site of infection. Dysregulated respiratory CD8(+) T cell responses were associated with impaired lung function after acute COVID-19, with potential pathogenic subsets contributing to persistent tissue conditions.

SCIENCE IMMUNOLOGY (2021)

Editorial Material Endocrinology & Metabolism

Long COVID - metabolic risk factors and novel therapeutic management

Kamlesh Khunti et al.

Summary: Cardiometabolic conditions, like type 1 and type 2 diabetes mellitus, are linked to severe COVID-19 and long COVID. Interventions targeting multiple risk factors, along with the use of novel glucose-lowering agents, are recommended for managing long COVID in people.

NATURE REVIEWS ENDOCRINOLOGY (2021)

Article Biology

Convalescent COVID-19 patients are susceptible to endothelial dysfunction due to persistent immune activation

Florence W. J. Chioh et al.

Summary: The impact of COVID-19 on vascular health of recovered patients is significant, with elevated levels of circulating endothelial cells indicating vascular injury. The presence of proinflammatory and activated T lymphocyte-associated cytokines suggests cytokine-driven endothelial dysfunction. Effector T cells were more frequent in COVID-19 convalescents, pointing to a possible cytotoxic effector cell targeting of activated endothelial cells.

ELIFE (2021)

Review Peripheral Vascular Disease

COVID-19 is a systemic vascular hemopathy: insight for mechanistic and clinical aspects

David M. Smadja et al.

Summary: COVID-19 caused by SARS-CoV-2 is a systemic disease associated with vascular inflammation and endothelial injury, which can lead to ARDS and hypercoagulation. Besides pro-inflammatory cytokines, endothelial dysfunction can also cause hypercoagulation, thrombosis and pathological angiogenesis.

ANGIOGENESIS (2021)

Article Hematology

Postdischarge thromboembolic outcomes and mortality of hospitalized patients with COVID-19: the CORE-19 registry

Dimitrios Giannis et al.

Summary: Thromboembolic events and mortality from subclinical thrombotic events frequently occur in COVID-19 inpatients. Postdischarge VTE, ATE, and ACM are common, with advanced age and cardiovascular risk factors increasing the risk. Postdischarge anticoagulation can significantly reduce the risk by 46%.

BLOOD (2021)

Article Cardiac & Cardiovascular Systems

Association of COVID-19 with impaired endothelial glycocalyx, vascular function and myocardial deformation 4 months after infection

Vaia Lambadiari et al.

Summary: Findings from the study suggest that COVID-19 infection may result in endothelial and vascular dysfunction four months after infection, manifesting in altered arterial stiffness, coronary and myocardial function, and changes in markers related to endothelial health.

EUROPEAN JOURNAL OF HEART FAILURE (2021)

Article Immunology

Deep spatial profiling of human COVID-19 brains reveals neuroinflammation with distinct microanatomical microglia-T-cell interactions

Marius Schwabenland et al.

Summary: The study found profound neuroinflammation in COVID-19 patients, with activation of innate and adaptive immune cells. These pathological changes are associated with systemic inflammation and disturbed hemostasis, suggesting potential therapeutic strategies.

IMMUNITY (2021)

Article Dermatology

From Your Nose to Your Toes: A Review of Severe Acute Respiratory Syndrome Coronavirus 2 Pandemic-Associated Pernio

Lisa M. Arkin et al.

Summary: Despite the large number of patients with pandemic-associated pernio, establishing a causal link to SARS-CoV-2 remains a challenge. Pathophysiological studies suggest that some children with pernio may have abnormalities in IFN-1 immunity, while excessive immune responses to SARS-CoV-2 are seen in the skin of pernio patients.

JOURNAL OF INVESTIGATIVE DERMATOLOGY (2021)

Article Urology & Nephrology

Kidney Outcomes in Long COVID

Benjamin Bowe et al.

Summary: The study showed that survivors of COVID-19 had an increased risk of kidney outcomes in the post-acute phase of the disease, indicating the importance of paying attention to kidney disease in long-term COVID-19 care.

JOURNAL OF THE AMERICAN SOCIETY OF NEPHROLOGY (2021)

Article Hematology

Persistent endotheliopathy in the pathogenesis of long COVID syndrome

Helen Fogarty et al.

Summary: The study found that endothelial cell activation may persist in convalescent COVID-19 patients and may contribute to the pathogenesis of long COVID. This sustained endotheliopathy was more common in older, comorbid patients, and those requiring hospitalization, indicating a potential link between endothelial dysfunction and long-term COVID symptoms.

JOURNAL OF THROMBOSIS AND HAEMOSTASIS (2021)

Article Biochemistry & Molecular Biology

Long COVID in a prospective cohort of home-isolated patients

Bjorn Blomberg et al.

Summary: An analysis of patients with SARS-CoV-2 infections in Bergen, Norway, revealed that a high proportion of patients experienced long-term COVID symptoms at 6 months, even though they were relatively young and had only mild to moderate acute COVID-19 symptoms. This highlights the significance of infection control measures, such as vaccination.

NATURE MEDICINE (2021)

Review Biotechnology & Applied Microbiology

The glomerular filtration barrier: a structural target for novel kidney therapies

Ilse S. Daehn et al.

Summary: This review discusses strategies to target components of the glomerular filtration barrier (GFB) to improve kidney function, focusing on controlling mitochondrial function and the actin-myosin contractile machinery. Developments in therapies targeting the GFB offer potential for new interventions in kidney diseases.

NATURE REVIEWS DRUG DISCOVERY (2021)

Editorial Material Urology & Nephrology

Long COVID and kidney disease

Sachin Yende et al.

Summary: Kidney involvement is common in acute SARS-CoV-2 infection, with subclinical inflammation and injury potentially leading to chronic kidney disease. Further research is crucial to understanding these long-term consequences and finding interventions to mitigate them.

NATURE REVIEWS NEPHROLOGY (2021)

Review Urology & Nephrology

Pathophysiology of COVID-19-associated acute kidney injury

Matthieu Legrand et al.

Summary: Acute kidney injury (AKI) is a common complication of COVID-19, and potential mechanisms for COVID-19-associated AKI include systemic haemodynamic instability, local immune cell infiltration, and endothelial injury, which may lead to impaired kidney function.

NATURE REVIEWS NEPHROLOGY (2021)

Article Medicine, General & Internal

Clinical Features of Vaccine-Induced Immune Thrombocytopenia and Thrombosis

Sue Pavord et al.

Summary: Phenotypes of VITT were defined in 220 patients in the United Kingdom who presented a median of 14 days after the first ChAdOx1 nCoV-19 vaccination. Half had cerebral venous sinus thrombosis, a third of whom also had intracranial hemorrhage. Mortality was 22%. Intravenous immune globulin may reverse VITT.

NEW ENGLAND JOURNAL OF MEDICINE (2021)

Article Immunology

SARS-CoV-2 Infects Endothelial Cells In Vivo and In Vitro

Fengming Liu et al.

Summary: This study found that SARS-CoV-2 may directly infect mature vascular endothelial cells in vivo and ex vivo, potentially contributing to cardiovascular complications in SARS-CoV-2 infection, including multiple organ failure.

FRONTIERS IN CELLULAR AND INFECTION MICROBIOLOGY (2021)

Article Multidisciplinary Sciences

Platelets amplify endotheliopathy in COVID-19

Tessa J. Barrett et al.

Summary: The study reveals an inflammatory hypercoagulable state between platelets and endothelial cells in COVID-19, with platelet-released factors promoting endotheliopathy. S100A8, S100A9, and their protein product MRP8/14 are enriched in COVID-19 platelets and contribute significantly to poor clinical outcomes. Targeting platelet P2Y(12) appears to be a promising strategy for reducing proinflammatory platelet-endothelial interactions in COVID-19.

SCIENCE ADVANCES (2021)

Article Critical Care Medicine

Comparison of renal histopathology and gene expression profiles between severe COVID-19 and bacterial sepsis in critically ill patients

Meint Volbeda et al.

Summary: This study analyzed postmortem kidney biopsies from COVID-19 and bacterial sepsis patients, revealing distinct histopathological features and gene expression patterns in COVID-19 patients with more severe ATN and microvascular thrombosis. Furthermore, decreased levels of ACE2 mRNA and angiopoietin-1, as well as disrupted microvascular flow, were observed in COVID-19 patients, suggesting unique pathophysiological mechanisms of AKI in COVID-19.

CRITICAL CARE (2021)

Article Immunology

Endothelial dysfunction and immunothrombosis as key pathogenic mechanisms in COVID-19

Aldo Bonaventura et al.

Summary: The authors suggest that SARS-CoV-2 infection induces a prothrombotic state and dysregulated immunothrombosis, leading to severe manifestations of COVID-19. They also discuss potential antithrombotic and immunomodulating drugs for treating COVID-19 patients, aiming to reduce the acute and long-term consequences of the disease by targeting immunothrombosis.

NATURE REVIEWS IMMUNOLOGY (2021)

Letter Respiratory System

Plasma mediators in patients with severe COVID-19 cause lung endothelial barrier failure

Laura Michalick et al.

EUROPEAN RESPIRATORY JOURNAL (2021)

Article Gastroenterology & Hepatology

Alterations in Gut Microbiota of Patients With COVID-19 During Time of Hospitalization

Tao Zuo et al.

GASTROENTEROLOGY (2020)

Letter Hematology

Pathological evidence of pulmonary thrombotic phenomena in severe COVID-19

Marisa Dolhnikoff et al.

JOURNAL OF THROMBOSIS AND HAEMOSTASIS (2020)

Review Urology & Nephrology

The case of complement activation in COVID-19 multiorgan impact

Marina Noris et al.

KIDNEY INTERNATIONAL (2020)

Letter Medicine, General & Internal

Endothelial cell infection and endotheliitis in COVID-19

Zsuzsanna Varga et al.

LANCET (2020)

Article Medicine, General & Internal

Pulmonary Vascular Endothelialitis, Thrombosis, and Angiogenesis in Covid-19

Maximilian Ackermann et al.

NEW ENGLAND JOURNAL OF MEDICINE (2020)

Article Medicine, General & Internal

Multiorgan and Renal Tropism of SARS-CoV-2

Victor G. Puelles et al.

NEW ENGLAND JOURNAL OF MEDICINE (2020)

Editorial Material Gastroenterology & Hepatology

Poor Outcome of Intestinal Ischemic Manifestations of COVID-19

Lorenzo Norsa et al.

GASTROENTEROLOGY (2020)

Letter Medicine, General & Internal

Persistent Symptoms in Patients After Acute COVID-19

Angelo Carfi et al.

JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION (2020)

Article Urology & Nephrology

COVID-19-Associated Kidney Injury: A Case Series of Kidney Biopsy Findings

Purva Sharma et al.

JOURNAL OF THE AMERICAN SOCIETY OF NEPHROLOGY (2020)

Review Physiology

PASSING THE VASCULAR BARRIER: ENDOTHELIAL SIGNALING PROCESSES CONTROLLING EXTRAVASATION

Nina Wettschureck et al.

PHYSIOLOGICAL REVIEWS (2019)

Review Hematology

Derangement of the endothelial glycocalyx in sepsis

T. Iba et al.

JOURNAL OF THROMBOSIS AND HAEMOSTASIS (2019)

Review Urology & Nephrology

Endothelium structure and function in kidney health and disease

Noemie Jourde-Chiche et al.

NATURE REVIEWS NEPHROLOGY (2019)

Review Physiology

BLOOD-BRAIN BARRIER: FROM PHYSIOLOGY TO DISEASE AND BACK

Melanie D. Sweeney et al.

PHYSIOLOGICAL REVIEWS (2019)

Review Immunology

Organ-specific protection mediated by cooperation between vascular and epithelial barriers

Ilaria Spadoni et al.

NATURE REVIEWS IMMUNOLOGY (2017)

Review Immunology

The movers and shapers in immune privilege of the CNS

Britta Engelhardt et al.

NATURE IMMUNOLOGY (2017)

Review Multidisciplinary Sciences

The microbiome and innate immunity

Christoph A. Thaiss et al.

NATURE (2016)

Review Physiology

NEW FUNDAMENTALS IN HEMOSTASIS

Henri H. Versteeg et al.

PHYSIOLOGICAL REVIEWS (2013)

Review Cardiac & Cardiovascular Systems

Phenotypic heterogeneity of the endothelium II. Representative vascular beds

William C. Aird

CIRCULATION RESEARCH (2007)