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Xu Z, Wang H, Jiang S, Teng J, Zhou D, Chen Z, Wen C, Xu Z. Brain Pathology in COVID-19: Clinical Manifestations and Potential Mechanisms. Neurosci Bull 2024; 40:383-400. [PMID: 37715924 PMCID: PMC10912108 DOI: 10.1007/s12264-023-01110-0] [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: 01/12/2023] [Accepted: 05/25/2023] [Indexed: 09/18/2023] Open
Abstract
Neurological manifestations of coronavirus disease 2019 (COVID-19) are less noticeable than the respiratory symptoms, but they may be associated with disability and mortality in COVID-19. Even though Omicron caused less severe disease than Delta, the incidence of neurological manifestations is similar. More than 30% of patients experienced "brain fog", delirium, stroke, and cognitive impairment, and over half of these patients presented abnormal neuroimaging outcomes. In this review, we summarize current advances in the clinical findings of neurological manifestations in COVID-19 patients and compare them with those in patients with influenza infection. We also illustrate the structure and cellular invasion mechanisms of SARS-CoV-2 and describe the pathway for central SARS-CoV-2 invasion. In addition, we discuss direct damage and other pathological conditions caused by SARS-CoV-2, such as an aberrant interferon response, cytokine storm, lymphopenia, and hypercoagulation, to provide treatment ideas. This review may offer new insights into preventing or treating brain damage in COVID-19.
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Affiliation(s)
- Zhixing Xu
- First School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Hui Wang
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Siya Jiang
- Second School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Jiao Teng
- Affiliated Lin'an People's Hospital of Hangzhou Medical College, First People's Hospital of Hangzhou Lin'an District, Lin'an, Hangzhou, 311300, China
| | - Dongxu Zhou
- School of Life Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Zhong Chen
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China
- Key Laboratory of Neuropharmacology and Translational Medicine of Zhejiang Province, College of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Chengping Wen
- Laboratory of Rheumatology and Institute of TCM Clinical Basic Medicine, College of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, 310053, China.
| | - Zhenghao Xu
- Key Laboratory of Neuropharmacology and Translational Medicine of Zhejiang Province, College of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou, 310053, China.
- Laboratory of Rheumatology and Institute of TCM Clinical Basic Medicine, College of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, 310053, China.
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Saghir K, Chraa M, Kissani N, Joulal H, Essaadouni L, Louhab N. Anti-MDA5 antibody-positive dermatomyositis with mild encephalopathy with reversible splenial lesion: a possible rare association? Wien Med Wochenschr 2023; 173:263-266. [PMID: 35729459 PMCID: PMC9211780 DOI: 10.1007/s10354-022-00943-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 05/25/2022] [Indexed: 12/01/2022]
Abstract
Central nervous system (CNS) involvement in dermatomyositis (DM) is seldom observed. However, there are very rare case reports of CNS involvement with juvenile dermatomyositis. Encephalopathy in DM may occur for a number of reasons, such as cerebral vasculitis and hypoperfusion/hypertensive encephalopathy, but mostly as a consequence of immunosuppressant treatment. We report here for the first time the case of a patient with two rare diseases, namely anti-MDA5 antibody-positive dermatomyositis and mild encephalopathy with reversible splenial lesion (MERS).
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Affiliation(s)
- Khadija Saghir
- Neuroscience Research Laboratory, Marrakech Medical School, Cadi Ayyad University, Marrakech, Morocco.
- Department of Neurology, University Teaching Hospital Mohammed VI, Marrakesh, Morocco.
- Faculty of Medicine, Cadi Ayyad. Department of Internal Medicine, University Teaching Hospital Mohammed VI, Marrakesh, Morocco.
| | - Mohammed Chraa
- Neuroscience Research Laboratory, Marrakech Medical School, Cadi Ayyad University, Marrakech, Morocco
- Department of Neurology, University Teaching Hospital Mohammed VI, Marrakesh, Morocco
- Faculty of Medicine, Cadi Ayyad. Department of Internal Medicine, University Teaching Hospital Mohammed VI, Marrakesh, Morocco
| | - Najib Kissani
- Neuroscience Research Laboratory, Marrakech Medical School, Cadi Ayyad University, Marrakech, Morocco
- Department of Neurology, University Teaching Hospital Mohammed VI, Marrakesh, Morocco
- Faculty of Medicine, Cadi Ayyad. Department of Internal Medicine, University Teaching Hospital Mohammed VI, Marrakesh, Morocco
| | - Hajar Joulal
- Neuroscience Research Laboratory, Marrakech Medical School, Cadi Ayyad University, Marrakech, Morocco
- Department of Neurology, University Teaching Hospital Mohammed VI, Marrakesh, Morocco
- Faculty of Medicine, Cadi Ayyad. Department of Internal Medicine, University Teaching Hospital Mohammed VI, Marrakesh, Morocco
| | - Lamiaa Essaadouni
- Neuroscience Research Laboratory, Marrakech Medical School, Cadi Ayyad University, Marrakech, Morocco
- Department of Neurology, University Teaching Hospital Mohammed VI, Marrakesh, Morocco
- Faculty of Medicine, Cadi Ayyad. Department of Internal Medicine, University Teaching Hospital Mohammed VI, Marrakesh, Morocco
| | - Nissrine Louhab
- Neuroscience Research Laboratory, Marrakech Medical School, Cadi Ayyad University, Marrakech, Morocco
- Department of Neurology, University Teaching Hospital Mohammed VI, Marrakesh, Morocco
- Faculty of Medicine, Cadi Ayyad. Department of Internal Medicine, University Teaching Hospital Mohammed VI, Marrakesh, Morocco
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Brown RL, Benjamin L, Lunn MP, Bharucha T, Zandi MS, Hoskote C, McNamara P, Manji H. Pathophysiology, diagnosis, and management of neuroinflammation in covid-19. BMJ 2023; 382:e073923. [PMID: 37595965 DOI: 10.1136/bmj-2022-073923] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/20/2023]
Abstract
Although neurological complications of SARS-CoV-2 infection are relatively rare, their potential long term morbidity and mortality have a significant impact, given the large numbers of infected patients. Covid-19 is now in the differential diagnosis of a number of common neurological syndromes including encephalopathy, encephalitis, acute demyelinating encephalomyelitis, stroke, and Guillain-Barré syndrome. Physicians should be aware of the pathophysiology underlying these presentations to diagnose and treat patients rapidly and appropriately. Although good evidence has been found for neurovirulence, the neuroinvasive and neurotropic potential of SARS-CoV-2 is limited. The pathophysiology of most complications is immune mediated and vascular, or both. A significant proportion of patients have developed long covid, which can include neuropsychiatric presentations. The mechanisms of long covid remain unclear. The longer term consequences of infection with covid-19 on the brain, particularly in terms of neurodegeneration, will only become apparent with time and long term follow-up.
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Affiliation(s)
- Rachel L Brown
- University College London, Queen Square Institute of Neurology, London, UK
- National Hospital for Neurology and Neurosurgery, Queen Square, London, UK
- UCL Institute of Immunity and Transplantation, London, UK
| | - Laura Benjamin
- National Hospital for Neurology and Neurosurgery, Queen Square, London, UK
- UCL Laboratory of Molecular and Cell Biology, London, UK
| | - Michael P Lunn
- University College London, Queen Square Institute of Neurology, London, UK
- National Hospital for Neurology and Neurosurgery, Queen Square, London, UK
| | - Tehmina Bharucha
- National Hospital for Neurology and Neurosurgery, Queen Square, London, UK
- Department of Biochemistry, University of Oxford, UK
| | - Michael S Zandi
- University College London, Queen Square Institute of Neurology, London, UK
- National Hospital for Neurology and Neurosurgery, Queen Square, London, UK
| | - Chandrashekar Hoskote
- Lysholm Department of Neuroradiology, National Hospital for Neurology and Neurosurgery, University College London Hospitals NHS Foundation Trust, London, UK
| | - Patricia McNamara
- National Hospital for Neurology and Neurosurgery, Queen Square, London, UK
| | - Hadi Manji
- University College London, Queen Square Institute of Neurology, London, UK
- National Hospital for Neurology and Neurosurgery, Queen Square, London, UK
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