ArticleNeurology(R) neuroimmunology & neuroinflammation2022
Plasma Biomarkers of Neuropathogenesis in Hospitalized Patients With COVID-19 and Those With Postacute Sequelae of SARS-CoV-2 Infection.
Article in Neurology(R) neuroimmunology & neuroinflammation, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers, 4 of them syntheses that pooled it.
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Who cites it
42 citing papers in PubMed, 4 syntheses or guidelines pooled it, 64 citations in OpenAlex.
- Parallel electrophysiological abnormalities due to COVID-19 infection and to Alzheimer's disease and related dementia.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2024Pooled it
- Blood Biomarkers as Prognostic Indicators for Neurological Injury in COVID-19 Patients: A Systematic Review and Meta-Analysis.International journal of molecular sciences · 2023Pooled it
- Biomarkers in long COVID-19: A systematic review.Frontiers in medicine · 2023Pooled it
- Database and AI Diagnostic Tools Improve Understanding of Lung Damage, Correlation of Pulmonary Disease and Brain Damage in COVID-19.Sensors (Basel, Switzerland) · 2022Pooled it
- Protein microarray-based profiling of salivary IgA antibodies against human proteins in COVID-19 patients with depressive symptoms.Scientific reports · 2026Article
- Association between influenza A virus and SARS-CoV-2 infections and mood disorders.Brain, behavior, & immunity - health · 2026Article
- Cognitive and Neuropsychiatric Sequelae After SARS-CoV-2 Infection: A Narrative Review and Exploratory Cross-Sectional Study of Neurofilament Light Chain and GFAP.Brain sciences · 2026Article
- Identifying GFAP-expressing cell susceptibility to SARS-CoV-2 infection using human iPSC-derived neural cells.Scientific reports · 2026Article
- Cognition, Cytokines, Blood-Brain Barrier, and Beyond in COVID-19: A Narrative Review.International journal of molecular sciences · 2026Review
- Inflammation from mild COVID-19 results in persistent neurological and behavioral changes in rhesus macaques.Research square · 2025Article
- Immunological and Clinical Markers of Post-acute Sequelae of COVID-19: Insights from Mild and Severe Cases 6 Months Post-infection.European journal of immunology · 2025Article
- Neurocognitive Impairment After COVID-19: Mechanisms, Phenotypes, and Links to Alzheimer's Disease.Brain sciences · 2025Review
- Observational
- Glial activation among individuals with neurological post-acute sequelae of coronavirus disease 2019: A positron emission tomography study of brain fog using [Brain, behavior, & immunity - health · 2025Article
- Non-Hospitalized Long COVID Patients Exhibit Reduced Retinal Capillary Perfusion: A Prospective Cohort Study.Journal of imaging · 2025Article
- Evaluation of Plasma Neurodegenerative Biomarkers for Diagnosing Minimal Hepatic Encephalopathy and Predicting Overt Hepatic Encephalopathy in Chinese Patients with Hepatic Cirrhosis.Journal of clinical and translational hepatology · 2025Article
- Review
- Long COVID: plasma levels of neurofilament light chain in mild COVID-19 patients with neurocognitive symptoms.Molecular psychiatry · 2024Article
- Reactive Astrocytosis-A Potential Contributor to Increased Suicide in Long COVID-19 Patients?Brain sciences · 2024Review
- Long Neuro-COVID-19: Current Mechanistic Views and Therapeutic Perspectives.Biomolecules · 2024Review
Corrections and comments
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Authors and funding
13 authors at 1 institution in 1 country.
Funding
Abstract
BACKGROUND AND
objectivesAlthough patients hospitalized with COVID-19 frequently present with encephalopathy, those with mild initial COVID-19 disease who never required hospitalization also often develop neurologic symptoms as part of postacute sequelae of severe acute respiratory coronavirus type 2 (SARS-CoV-2) infection (neuro-PASC). The pathogenic mechanisms of COVID-19 encephalopathy and neuro-PASC are unknown. We sought to establish biochemical evidence of CNS injury in those patients and their association with neuropsychiatric manifestations and SARS-CoV-2 antigenemia.
methodsWe recruited hospitalized, posthospitalized, and nonhospitalized patients with confirmed diagnosis of COVID-19 with neurologic symptoms in addition to healthy control (HC) subjects. Plasma neurofilament light chain (pNfL), plasma glial fibrillary acidic protein (pGFAP), and plasma SARS-CoV-2 Nucleocapsid antigen (pN Ag) were measured by HD-X Simoa analyzer (Quanterix) and compared with neuropsychiatric symptoms, patient-reported quality-of-life measures, and standardized cognitive assessments. Neuroglial scores (pGFAP/pNfL) were calculated to estimate the relative contribution of astroglial and neuronal involvement.
resultsWe enrolled a total of 64 study participants, including 9 hospitalized patients with COVID-19 encephalopathy (CE), 9 posthospitalization neuro-PASC (PNP) patients, 38 nonhospitalized neuro-PASC (NNP) patients, and 8 HC subjects. Patients with CE were older, had higher pNfL and pGFAP concentrations, and more frequent pN Ag detection than all neuro-PASC groups. PNP and NNP patients exhibited similar PASC symptoms, decreased quality-of-life measures, and cognitive dysfunction, and 1 of the 38 (2.6%) NNP patients had pN Ag detectable 3 weeks postsymptoms onset. Patients with neuro-PASC presenting with anxiety/depression had higher neuroglial scores, which were correlated with increased anxiety on quality-of-life measures. DISCUSSION: pNfL, pGFAP, and pN Ag measurements indicate neuronal dysfunction and systemic involvement in hospitalized COVID-19 patients with encephalopathy. Detection of SARS-CoV-2 N Ag in blood 3 weeks after symptoms onset in a nonhospitalized patient suggests that prolonged antigenic stimulation, or possibly latent infection, may occur. Anxiety was associated with evidence of astroglial activation in patients with neuro-PASC. These data shed new light on SARS-Cov-2 neuropathogenesis and demonstrate the value of plasma biomarkers across the COVID-19 disease spectrum.
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