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Mitsikostas DD, Caronna E, De Tommaso M, Deligianni CI, Ekizoglu E, Bolay H, Göbel CH, Kristoffersen ES, Lampl C, Moro E, Pozo‐Rosich P, Sellner J, Terwindt G, Irimia‐Sieira P. Headaches and facial pain attributed to SARS-CoV-2 infection and vaccination: a systematic review. Eur J Neurol 2024; 31:e16251. [PMID: 38415282 PMCID: PMC11235838 DOI: 10.1111/ene.16251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 01/23/2024] [Accepted: 02/01/2024] [Indexed: 02/29/2024]
Abstract
BACKGROUND AND PURPOSE The aim was to provide insights to the characteristics of headache in the context of COVID-19 on behalf of the Headache Scientific Panel and the Neuro-COVID-19 Task Force of the European Academy of Neurology (EAN) and the European Headache Federation (EHF). METHODS Following the Delphi method the Task Force identified six relevant questions and then conducted a systematic literature review to provide evidence-based answers and suggest specific diagnostic criteria. RESULTS No data for facial pain were identified in the literature search. (1) Headache incidence during acute COVID-19 varies considerably, with higher prevalence rates in prospective compared to retrospective studies (28.9%-74.6% vs. 6.5%-34.0%). (2) Acute COVID-19 headache is usually bilateral or holocranial and often moderate to severe with throbbing pain quality lasting 2-14 days after first signs of COVID-19; photo-phonophobia, nausea, anosmia and ageusia are common associated features; persistent headache shares similar clinical characteristics. (3) Acute COVID-19 headache is presumably caused by immune-mediated mechanisms that activate the trigeminovascular system. (4) Headache occurs in 13.3%-76.9% following SARS-CoV-2 vaccination and occurs more often amongst women with a pre-existing primary headache; the risk of developing headache is higher with the adenoviral-vector-type vaccines than with other preparations. (5) Headache related to SARS-CoV-2 vaccination is mostly bilateral, and throbbing, pressing, jolting or stabbing. (6) No studies have been conducted investigating the underlying mechanism of headache attributed to SARS-CoV-2 vaccines. CONCLUSION The results of this joint EAN/EHF initiative provide a framework for a better understanding of headache in the context of SARS-CoV-2 infection and vaccination.
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Affiliation(s)
| | - Edoardo Caronna
- Headache Unit, Neurology DepartmentHospital Universitari Vall d'HebronBarcelonaSpain
- Headache and Neurological Pain Research Group, Department of MedicineVall d'Hebron Research Institute, Universitat Autònoma de BarcelonaBarcelonaSpain
| | - Marina De Tommaso
- Neurophysiopathology Unit, DiBrain DepartmentAldo Moro UniversityBariItaly
| | | | - Esme Ekizoglu
- Department of Neurology, Faculty of MedicineIstanbul University, IstanbulIstanbulTurkey
| | - Hayrunnisa Bolay
- Department of Neurology and Algology, NÖROMGazi University AnkaraAnkaraTurkey
| | - Carl H. Göbel
- Department of NeurologyUniversity Hospital Schleswig‐HolsteinLübeckGermany
| | - Espen Saxhaug Kristoffersen
- Department of NeurologyAkershus University HospitalLørenskogNorway
- NorHEAD, Norwegian Centre for Headache ResearchAkershus University HospitalLørenskogNorway
- Department of General Practice, HELSAMUniversity of OsloOsloNorway
| | - Christian Lampl
- Department of Neurology and Stroke UnitKonventhospital Barmherzige Brüder LinzLinzAustria
- Headache Medical Center LinzLinzAustria
| | - Elena Moro
- Division of Neurology, CHU of Grenoble, Grenoble Institute of Neurosciences, Grenoble Alpes UniversityGrenobleFrance
| | - Patricia Pozo‐Rosich
- Headache Unit, Neurology DepartmentHospital Universitari Vall d'HebronBarcelonaSpain
- Headache and Neurological Pain Research Group, Department of MedicineVall d'Hebron Research Institute, Universitat Autònoma de BarcelonaBarcelonaSpain
| | - Johann Sellner
- Department of NeurologyLandesklinikum Mistelbach‐GänserndorfMistelbachAustria
| | - Gisela Terwindt
- Department of NeurologyLeiden University Medical CenterLeidenThe Netherlands
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Sourani A, Vahdat N, Bowers CA, Rezvani M, Foroughi M, Sourani A, Mirza R, Baradaran Mahdavi S. SARS-CoV-2 and spinal cord ischemia: a systematic review on clinical presentations, diagnosis, treatment, and outcomes. Spine J 2024; 24:979-988. [PMID: 38365009 DOI: 10.1016/j.spinee.2024.02.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 12/16/2023] [Accepted: 02/06/2024] [Indexed: 02/18/2024]
Abstract
BACKGROUND CONTEXT Spinal cord ischemia is a rare but ominous clinical situation with high levels of disability. There are emerging reports on COVID-19 and spinal cord ischemic events. PURPOSE To investigate the cardinal manifestations of SARS-CoV-2 associated spinal cord ischemia, review treatment paradigms, and follow outcomes. STUDY DESIGN A systematic review. METHODS The current study was conducted under Preferred Reporting Items for Systematic Reviews and Meta-analysis (PRISMA) guidelines. The authors searched PubMed, Scopus, Web of Science, and Google Scholar for studies published up to February 12, 2023, on spinal cord ischemia and SARS-CoV-2 infection. Data on patient demographics, study methods, medical records, interventions, and outcomes were extracted from eligible articles. For each data set, the authors performed pooled estimates examining 3 factors of interest, which were (1) predisposing factors (2) treatment regimens, and (3) neurological rehabilitation outcomes. Neurological status was reported as the American Spinal Injury Association (ASIA) impairment scale reported by data sets. RESULTS Six data sets were identified. The mean age of the study population was 50 years old, with 66.6% male predominance. Sixty-six percent of the patients had severe COVID-19. Five data sets reported preexisting coagulopathy. ASIA A and B were the most prevalent primary neurological status (80%). The mean interval between COVID-19 and the first neurological deficit was 13 days. Anterior spinal artery lesions were the most prevalent ischemic pattern. The most common treatment regimens were heparin and steroid therapy. Physical rehabilitation showed poor functional outcomes. CONCLUSIONS SARS-CoV-2 is associated with spinal cord ischemia through multiple neuropathological mechanisms. Proper coagulation profile control and aggressive rehabilitation may play a promising role in the prevention and recovery of spinal cord infarction in SARS-CoV-2 patients.
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Affiliation(s)
- Arman Sourani
- Department of Neurosurgery, Isfahan University of Medical Sciences, Isfahan, Iran; Environment Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Noushin Vahdat
- Department of Radiology, University of California San Diego (UCSD), San Diego, CA, USA; Department of Radiology, Veterans Administration Healthcare System, San Diego, CA, USA
| | - Christian A Bowers
- Department of Neurosurgery, University of New Mexico Hospital (UNMH), Albuquerque, NM, USA; Bowers Neurosurgical Frailty and Outcomes Data Science Lab, Albuquerque, NM, 87131, USA
| | - Majid Rezvani
- Department of Neurosurgery, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mina Foroughi
- Student Research Committee, Isfahan University of Medical Sciences, Isfahan, Iran.
| | - Armin Sourani
- Student Research Committee, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Ryan Mirza
- Department of Radiology, University of California San Diego (UCSD), San Diego, CA, USA
| | - Sadegh Baradaran Mahdavi
- Department of Physical Medicine and Rehabilitation, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran; Child Growth and Development Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran.
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Hashimoto K. Detrimental effects of COVID-19 in the brain and therapeutic options for long COVID: The role of Epstein-Barr virus and the gut-brain axis. Mol Psychiatry 2023; 28:4968-4976. [PMID: 37402856 PMCID: PMC11041741 DOI: 10.1038/s41380-023-02161-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Revised: 06/13/2023] [Accepted: 06/22/2023] [Indexed: 07/06/2023]
Abstract
The coronavirus disease 2019 (COVID-19) pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection has resulted in a serious public health burden worldwide. In addition to respiratory, heart, and gastrointestinal symptoms, patients infected with SARS-CoV-2 experience a number of persistent neurological and psychiatric symptoms, known as long COVID or "brain fog". Studies of autopsy samples from patients who died from COVID-19 detected SARS-CoV-2 in the brain. Furthermore, increasing evidence shows that Epstein-Barr virus (EBV) reactivation after SARS-CoV-2 infection might play a role in long COVID symptoms. Moreover, alterations in the microbiome after SARS-CoV-2 infection might contribute to acute and long COVID symptoms. In this article, the author reviews the detrimental effects of COVID-19 on the brain, and the biological mechanisms (e.g., EBV reactivation, and changes in the gut, nasal, oral, or lung microbiomes) underlying long COVID. In addition, the author discusses potential therapeutic approaches based on the gut-brain axis, including plant-based diet, probiotics and prebiotics, fecal microbiota transplantation, and vagus nerve stimulation, and sigma-1 receptor agonist fluvoxamine.
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Affiliation(s)
- Kenji Hashimoto
- Division of Clinical Neuroscience, Chiba University Center for Forensic Mental Health, Chiba, 260-8670, Japan.
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Afsahi AM, Norbash AM, Syed SF, Sedaghat M, Afsahi G, Shahidi R, Tajabadi Z, Bagherzadeh-Fard M, Karami S, Yarahmadi P, Shirdel S, Asgarzadeh A, Baradaran M, Khalaj F, Sadeghsalehi H, Fotouhi M, Habibi MA, Jang H, Alavi A, Sedaghat S. Brain MRI findings in neurologically symptomatic COVID-19 patients: a systematic review and meta-analysis. J Neurol 2023; 270:5131-5154. [PMID: 37535100 DOI: 10.1007/s00415-023-11914-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 07/24/2023] [Accepted: 07/28/2023] [Indexed: 08/04/2023]
Abstract
BACKGROUND Coronavirus disease 2019 (COVID-19) has been associated with nervous system involvement, with more than one-third of COVID-19 patients experiencing neurological manifestations. Utilizing a systematic review, this study aims to summarize brain MRI findings in COVID-19 patients presenting with neurological symptoms. METHODS Systematic review was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-analysis (PRISMA) checklist. The electronic databases of PubMed/MEDLINE, Embase, Scopus, and Web of Science were systematically searched for literature addressing brain MRI findings in COVID-19 patients with neurological symptoms. RESULTS 25 publications containing a total number of 3118 COVID-19 patients with neurological symptoms who underwent MRI were included. The most common MRI findings and the respective pooled incidences in decreasing order were acute/subacute infarct (22%), olfactory bulb abnormalities (22%), white matter abnormalities (20%), cerebral microbleeds (17%), grey matter abnormalities (12%), leptomeningeal enhancement (10%), ADEM (Acute Disseminated Encephalomyelitis) or ADEM-like lesions (10%), non-traumatic ICH (10%), cranial neuropathy (8%), cortical gray matter signal changes compatible with encephalitis (8%), basal ganglia abnormalities (5%), PRES (Posterior Reversible Encephalopathy Syndrome) (3%), hypoxic-ischemic lesions (4%), venous thrombosis (2%), and cytotoxic lesions of the corpus callosum (2%). CONCLUSION The present study revealed that a considerable proportion of patients with COVID-19 might harbor neurological abnormalities detectable by MRI. Among various findings, the most common MRI alterations are acute/subacute infarction, olfactory bulb abnormalities, white matter abnormalities, and cerebral microbleeds.
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Affiliation(s)
| | | | - Shahla F Syed
- Department of Radiology, Weill Cornell Medicine, New York, NY, USA
| | - Maya Sedaghat
- Department for Radiology and Neuroradiology, University Hospital Schleswig-Holstein Campus Kiel, Kiel, Germany
| | - Ghazaleh Afsahi
- Department of Biotechnology Research, Blue California Ingredients, Rancho Santa Margarita, CA, USA
| | - Ramin Shahidi
- School of Medicine, Bushehr University of Medical Sciences, Bushehr, Iran
| | - Zohreh Tajabadi
- Digestive Disease Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Shaghayegh Karami
- School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Pourya Yarahmadi
- School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Shabnam Shirdel
- Department of Psychology, Faculty of Education and Psychology, University of Tabriz, Tabriz, Iran
| | - Ali Asgarzadeh
- Students Research Committee, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Mansoureh Baradaran
- Department of Radiology, Imam Ali Hospital, North Khorasan University of Medical Science, Bojnurd, Iran
| | - Fattaneh Khalaj
- Digestive Disease Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Hamidreza Sadeghsalehi
- Department of Artificial Intelligence in Medical Sciences, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Maryam Fotouhi
- Quantitative MR Imaging and Spectroscopy Group (QMISG), Research Centre for Molecular and Cellular Imaging (RCMCI), Advanced Medical Technologies and Equipment Institute (AMTEI), Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | | | - Hyungseok Jang
- Department of Radiology, University of California, San Diego, CA, USA
| | - Abass Alavi
- Department of Diagnostic Radiology and Nuclear Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Sam Sedaghat
- Department of Radiology, University of California, San Diego, CA, USA
- Department of Diagnostic and Interventional Radiology, University Hospital Heidelberg, Heidelberg, Germany
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Sinaei R, Nejadbiglari H, Sinaei R, Zeinaly M, Pezeshki S, Jafari M. Finding positive SARS-CoV-2 RT-PCR in cerebrospinal fluid of two pediatric patients with severe COVID-19: a brief case report. BMC Pediatr 2023; 23:49. [PMID: 36717816 PMCID: PMC9885917 DOI: 10.1186/s12887-022-03806-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Accepted: 12/15/2022] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND There is growing evidence of nervous system involvement and related complaints in children with coronavirus disease 2019 (COVID-19). However, it seems that attempts to track of the virus in the nervous system have so far been unsuccessful. CASE PRESENTATION Here we describe two pediatric cases of severe COVID-19 who had positive cerebrospinal fluid (CSF) and nasopharyngeal polymerase chain reaction (PCR) tests for severe acute respiratory syndrome coronavirus disease 2019 (SARS-CoV-2). A 36-month-old girl who presented with fever, diarrhea, mild left ventricular dysfunction and bizarre movements, and a five-month-old boy who presented with fever, watery diarrhea, severe dehydration, mottling, and two episodes of seizure. Their CSF analyses and cultures were normal. They admitted in intensive care unit (ICU) for near four days and discharged after ten days without any complaint. CONCLUSION This is one of the first reports of the presence of coronavirus in the central nervous system in COVID-19 pediatric patients, emphasizing the neurotropism and neuroinvasion characteristics of the virus.
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Affiliation(s)
- Reza Sinaei
- grid.412105.30000 0001 2092 9755Department of Pediatrics, School of Medicine, Kerman University of Medical Sciences, Kerman, Iran ,grid.412105.30000 0001 2092 9755Endocrinology and Metabolism Research Center, Institute of Basic and Clinical Physiology Sciences, Kerman University of Medical Sciences, Kerman, Iran
| | - Habibeh Nejadbiglari
- grid.412105.30000 0001 2092 9755Neuroscience Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - Roya Sinaei
- grid.411705.60000 0001 0166 0922Department of Pediatric Neurology, Pediatrics Center of Excellence, Children’s Medical Center, Tehran University of Medical Sciences, Tehran, Iran ,grid.412105.30000 0001 2092 9755Department of Pediatrics, Kerman University of Medical Sciences, Kerman, Iran
| | - Maziar Zeinaly
- grid.412105.30000 0001 2092 9755Department of Pediatrics, School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - Sara Pezeshki
- grid.412105.30000 0001 2092 9755Department of Internal Medicine, Kerman University of Medical Sciences, Kerman, Iran ,grid.412105.30000 0001 2092 9755Endocrinology and Metabolism Research Center, Institute of Basic and Clinical Physiology Sciences, Kerman University of Medical Sciences, Kerman, Iran
| | - Maedeh Jafari
- grid.412105.30000 0001 2092 9755Clinical Research Development Unit, Afzalipour Hospital, Kerman University of Medical Sciences, Kerman, Iran ,grid.412105.30000 0001 2092 9755Department of Pediatrics, School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
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Chin HL, Cheong KK. Diagnostic Tests in Pediatric Patients With COVID-19 With Cerebrovascular Complications. Pediatr Neurol 2022; 136:34. [PMID: 36084420 PMCID: PMC9357280 DOI: 10.1016/j.pediatrneurol.2022.07.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Accepted: 07/27/2022] [Indexed: 11/19/2022]
Affiliation(s)
- Hok Leong Chin
- Private Clinic, Macau, Macau Special Administrative Region of China
| | - Ka Kin Cheong
- Macao Academy of Medicine, Centro Hospitalar Conde de São Januário, Macau, Macau Special Administrative Region of China.
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7
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Mustafin RN, Kazantseva AV, Kovas YV, Khusnutdinova EK. Role Of Retroelements In The Development Of COVID-19 Neurological Consequences. RUSSIAN OPEN MEDICAL JOURNAL 2022. [DOI: 10.15275/rusomj.2022.0313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Retroelements play a key role in brain functioning in humans and other animals, since they represent dynamic regulatory elements controlling the expression of specific neuron types. The activity of retroelements in the brain is impaired under the influence of SARS-CoV-2, penetrating the blood-brain barrier. We propose a new concept, according to which the neurological complications of COVID-19 and their long-term effects are caused by modified expression of retroelements in neurons due to viral effect. This effect is implemented in several ways: a direct effect of the virus on the promoter regions of retroelement-encoding genes, virus interaction with miRNAs causing silencing of transposons, and an effect of the viral RNA on the products of retroelement transcription. Aging-related physiological activation of retroelements in the elderly is responsible for more severe course of COVID-19. The associations of multiple sclerosis, Parkinson’s disease, Guillain-Barré syndrome, acute disseminated encephalomyelitis with coronavirus lesions also indicate the role of retroelements in such complications, because retroelements are involved in the mechanisms of the development of these diseases. According to meta-analyses, COVID-19-caused neurological complications ranged 36.4-73%. The neuropsychiatric consequences of COVID-19 are observed in patients over a long period after recovery, and their prevalence may exceed those during the acute phase of the disease. Even 12 months after recovery, unmotivated fatigue, headache, mental disorders, and neurocognitive impairment were observed in 82%, 60%, 26.2-45%, and 16.2-46.8% of patients, correspondingly. These manifestations are explained by the role of retroelements in the integration of SARS-CoV-2 into the human genome using their reverse transcriptase and endonuclease, which results in a long-term viral persistence. The research on the role of specific retroelements in these changes can become the basis for developing targeted therapy for neurological consequences of COVID-19 using miRNAs, since epigenetic changes in the functioning of the genome in neurons, affected by transposons, are reversible.
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Affiliation(s)
| | - Anastasiya V. Kazantseva
- Ufa Federal Research Center of the Russian Academy of Sciences; Bashkir State University, Ufa, Russia
| | - Yulia V. Kovas
- Bashkir State University, Ufa, Russia;University of London, London, Great Britain
| | - Elza K. Khusnutdinova
- Academy of Sciences of the Republic of Bashkortostan; Russian Academy of Education; Ufa Federal Research Center, Russian Academy of Sciences, Ufa, Russia
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Hamsters Expressing Human Angiotensin-Converting Enzyme 2 Develop Severe Disease following Exposure to SARS-CoV-2. mBio 2022; 13:e0290621. [PMID: 35073750 PMCID: PMC8787465 DOI: 10.1128/mbio.02906-21] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
The rapid emergence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has created a global health emergency. While most human disease is mild to moderate, some infections lead to a severe disease characterized by acute respiratory distress, hypoxia, anosmia, ageusia, and, in some instances, neurological involvement. Small-animal models reproducing severe disease, including neurological sequela, are needed to characterize the pathophysiological mechanism(s) of disease and to identify medical countermeasures. Transgenic mice expressing the human angiotensin-converting enzyme 2 (hACE2) viral receptor under the control of the K18 promoter develop severe and lethal respiratory disease subsequent to SARS-CoV-2 intranasal challenge when high viral doses are used. Here, we report on SARS-CoV-2 infection of hamsters engineered to express the hACE2 receptor under the control of the K18 promoter. K18-hACE2 hamsters infected with a relatively low dose of 100 or 1,000 PFU of SARS-CoV-2 developed a severe and lethal disease, with most animals succumbing by day 5 postinfection. Hamsters developed severe lesions and inflammation within the upper and lower respiratory system, including infection of the nasal cavities causing marked destruction of the olfactory epithelium as well as severe bronchopneumonia that extended deep into the alveoli. Additionally, SARS-CoV-2 infection spread to the central nervous system (CNS), including the brain stem and spinal cord. Wild-type (WT) hamsters naturally support SARS-CoV-2 infection, with the primary lesions present in the respiratory tract and nasal cavity. Overall, infection in the K18-hACE2 hamsters is more extensive than that in WT hamsters, with more CNS involvement and a lethal outcome. These findings demonstrate the K18-hACE2 hamster model will be valuable for studying SARS-CoV-2. IMPORTANCE The rapid emergence of SARS-CoV-2 has created a global health emergency. While most human SARS-CoV-2 disease is mild, some people develop severe, life-threatening disease. Small-animal models mimicking the severe aspects of human disease are needed to more clearly understand the pathophysiological processes driving this progression. Here, we studied SARS-CoV-2 infection in hamsters engineered to express the human angiotensin-converting enzyme 2 viral receptor under the control of the K18 promoter. SARS-CoV-2 produces a severe and lethal infection in transgenic hamsters that mirrors the most severe aspects of COVID-19 in humans, including respiratory and neurological injury. In contrast to other animal systems, hamsters manifest disease with levels of input virus more consistent with natural human infection. This system will be useful for the study of SARS-CoV-2 disease and the development of drugs targeting this virus.
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Lee MH, Perl DP, Steiner J, Pasternack N, Li W, Maric D, Safavi F, Horkayne-Szakaly I, Jones R, Stram MN, Moncur JT, Hefti M, Folkerth RD, Nath A. OUP accepted manuscript. Brain 2022; 145:2555-2568. [PMID: 35788639 PMCID: PMC9278212 DOI: 10.1093/brain/awac151] [Citation(s) in RCA: 110] [Impact Index Per Article: 55.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 04/05/2022] [Accepted: 04/07/2022] [Indexed: 11/19/2022] Open
Abstract
The underlying mechanisms by which severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) leads to acute and long-term neurological manifestations remains obscure. We aimed to characterize the neuropathological changes in patients with coronavirus disease 2019 and determine the underlying pathophysiological mechanisms. In this autopsy study of the brain, we characterized the vascular pathology, the neuroinflammatory changes and cellular and humoral immune responses by immunohistochemistry. All patients died during the first wave of the pandemic from March to July 2020. All patients were adults who died after a short duration of the infection, some had died suddenly with minimal respiratory involvement. Infection with SARS-CoV-2 was confirmed on ante-mortem or post-mortem testing. Descriptive analysis of the pathological changes and quantitative analyses of the infiltrates and vascular changes were performed. All patients had multifocal vascular damage as determined by leakage of serum proteins into the brain parenchyma. This was accompanied by widespread endothelial cell activation. Platelet aggregates and microthrombi were found adherent to the endothelial cells along vascular lumina. Immune complexes with activation of the classical complement pathway were found on the endothelial cells and platelets. Perivascular infiltrates consisted of predominantly macrophages and some CD8+ T cells. Only rare CD4+ T cells and CD20+ B cells were present. Astrogliosis was also prominent in the perivascular regions. Microglial nodules were predominant in the hindbrain, which were associated with focal neuronal loss and neuronophagia. Antibody-mediated cytotoxicity directed against the endothelial cells is the most likely initiating event that leads to vascular leakage, platelet aggregation, neuroinflammation and neuronal injury. Therapeutic modalities directed against immune complexes should be considered.
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Affiliation(s)
- Myoung Hwa Lee
- National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892, USA
| | - Daniel P Perl
- Department of Pathology, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
| | - Joseph Steiner
- National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892, USA
| | - Nicholas Pasternack
- National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892, USA
| | - Wenxue Li
- National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892, USA
| | - Dragan Maric
- National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892, USA
| | - Farinaz Safavi
- National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892, USA
| | | | - Robert Jones
- The Joint Pathology Center, Defense Health Agency, Silver Spring, MD 20910, USA
| | - Michelle N Stram
- Office of Chief Medical Examiner, and Department of Forensic Medicine, New York University School of Medicine, New York, NY 10016, USA
| | - Joel T Moncur
- The Joint Pathology Center, Defense Health Agency, Silver Spring, MD 20910, USA
| | - Marco Hefti
- Department of Pathology, University of Iowa Roy J. and Lucille A. Carver College of Medicine, Iowa City, IA 52242, USA
| | - Rebecca D Folkerth
- Office of Chief Medical Examiner, and Department of Forensic Medicine, New York University School of Medicine, New York, NY 10016, USA
| | - Avindra Nath
- Correspondence to: Avindra Nath MD Bldg 10; Room 7C-103; 10 Center Drive Bethesda, MD 20892, USA E-mail:
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