1
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Granholm ACE, Englund E, Gilmore A, Head E, Yong WH, Perez SE, Guzman SJ, Hamlett ED, Mufson EJ. Neuropathological findings in Down syndrome, Alzheimer's disease and control patients with and without SARS-COV-2: preliminary findings. Acta Neuropathol 2024; 147:92. [PMID: 38801558 PMCID: PMC11130011 DOI: 10.1007/s00401-024-02743-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 05/11/2024] [Accepted: 05/12/2024] [Indexed: 05/29/2024]
Abstract
The SARS-CoV-2 virus that led to COVID-19 is associated with significant and long-lasting neurologic symptoms in many patients, with an increased mortality risk for people with Alzheimer's disease (AD) and/or Down syndrome (DS). However, few studies have evaluated the neuropathological and inflammatory sequelae in postmortem brain tissue obtained from AD and people with DS with severe SARS-CoV-2 infections. We examined tau, beta-amyloid (Aβ), inflammatory markers and SARS-CoV-2 nucleoprotein in DS, AD, and healthy non-demented controls with COVID-19 and compared with non-infected brain tissue from each disease group (total n = 24). A nested ANOVA was used to determine regional effects of the COVID-19 infection on arborization of astrocytes (Sholl analysis) and percent-stained area of Iba-1 and TMEM 119. SARS-CoV-2 antibodies labeled neurons and glial cells in the frontal cortex of all subjects with COVID-19, and in the hippocampus of two of the three DS COVID-19 cases. SARS-CoV-2-related alterations were observed in peri-vascular astrocytes and microglial cells in the gray matter of the frontal cortex, hippocampus, and para-hippocampal gyrus. Bright field microscopy revealed scattered intracellular and diffuse extracellular Aβ deposits in the hippocampus of controls with confirmed SARS-CoV-2 infections. Overall, the present preliminary findings suggest that SARS-CoV-2 infections induce abnormal inflammatory responses in Down syndrome.
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Affiliation(s)
- Ann-Charlotte E Granholm
- Department of Neurosurgery, University of Colorado Anschutz Medical Campus, Research Complex II, Aurora, CO, USA.
| | - Elisabet Englund
- Division of Pathology, Department of Clinical Sciences, Lund University, Lund, Sweden
| | - Anah Gilmore
- Department of Neurosurgery, University of Colorado Anschutz Medical Campus, Research Complex II, Aurora, CO, USA
| | - Elizabeth Head
- Department of Pathology and Laboratory Medicine, University of California Irvine, Irvine, CA, USA
- Department of Neurology, University of California Irvine, Irvine, CA, USA
| | - William H Yong
- Department of Pathology and Laboratory Medicine, University of California Irvine, Irvine, CA, USA
| | - Sylvia E Perez
- Department of Translational Neuroscience and Neurology, Barrow Neurological Institute, Phoenix, AZ, USA
| | - Samuel J Guzman
- Department of Pathology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Eric D Hamlett
- Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, SC, USA
| | - Elliott J Mufson
- Department of Translational Neuroscience and Neurology, Barrow Neurological Institute, Phoenix, AZ, USA
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2
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Zhao J, Xia F, Jiao X, Lyu X. Long COVID and its association with neurodegenerative diseases: pathogenesis, neuroimaging, and treatment. Front Neurol 2024; 15:1367974. [PMID: 38638307 PMCID: PMC11024438 DOI: 10.3389/fneur.2024.1367974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Accepted: 02/28/2024] [Indexed: 04/20/2024] Open
Abstract
Corona Virus disease 2019 (COVID-19), caused by the severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), has presented unprecedented challenges to the world. Changes after acute COVID-19 have had a significant impact on patients with neurodegenerative diseases. This study aims to explore the mechanism of neurodegenerative diseases by examining the main pathways of central nervous system infection of SARS-CoV-2. Research has indicated that chronic inflammation and abnormal immune response are the primary factors leading to neuronal damage and long-term consequences of COVID-19. In some COVID-19 patients, the concurrent inflammatory response leads to increased release of pro-inflammatory cytokines, which may significantly impact the prognosis. Molecular imaging can accurately assess the severity of neurodegenerative diseases in patients with COVID-19 after the acute phase. Furthermore, the use of FDG-PET is advocated to quantify the relationship between neuroinflammation and psychiatric and cognitive symptoms in patients who have recovered from COVID-19. Future development should focus on aggressive post-infection control of inflammation and the development of targeted therapies that target ACE2 receptors, ERK1/2, and Ca2+.
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Affiliation(s)
- Jinyang Zhao
- Department of Radiology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Fan Xia
- Department of Radiology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Xue Jiao
- Department of Respiratory, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Xiaohong Lyu
- Department of Radiology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
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3
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van der Knaap N, Ariës MJH, van der Horst ICC, Jansen JFA. On the merits and potential of advanced neuroimaging techniques in COVID-19: A scoping review. Neuroimage Clin 2024; 42:103589. [PMID: 38461701 PMCID: PMC10938171 DOI: 10.1016/j.nicl.2024.103589] [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: 01/09/2024] [Revised: 02/29/2024] [Accepted: 03/03/2024] [Indexed: 03/12/2024]
Abstract
Many Coronavirus Disease 2019 (COVID-19) patients are suffering from long-term neuropsychological sequelae. These patients may benefit from a better understanding of the underlying neuropathophysiological mechanisms and identification of potential biomarkers and treatment targets. Structural clinical neuroimaging techniques have limited ability to visualize subtle cerebral abnormalities and to investigate brain function. This scoping review assesses the merits and potential of advanced neuroimaging techniques in COVID-19 using literature including advanced neuroimaging or postmortem analyses in adult COVID-19 patients published from the start of the pandemic until December 2023. Findings were summarized according to distinct categories of reported cerebral abnormalities revealed by different imaging techniques. Although no unified COVID-19-specific pattern could be subtracted, a broad range of cerebral abnormalities were revealed by advanced neuroimaging (likely attributable to hypoxic, vascular, and inflammatory pathology), even in absence of structural clinical imaging findings. These abnormalities are validated by postmortem examinations. This scoping review emphasizes the added value of advanced neuroimaging compared to structural clinical imaging and highlights implications for brain functioning and long-term consequences in COVID-19.
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Affiliation(s)
- Noa van der Knaap
- Department of Intensive Care Medicine, Maastricht University Medical Center, Maastricht, the Netherlands; Department of Radiology & Nuclear Medicine, Maastricht University Medical Center, Maastricht, the Netherlands; Research Institute of Mental Health & Neuroscience, Maastricht University, Maastricht, the Netherlands
| | - Marcel J H Ariës
- Department of Intensive Care Medicine, Maastricht University Medical Center, Maastricht, the Netherlands; Research Institute of Mental Health & Neuroscience, Maastricht University, Maastricht, the Netherlands
| | - Iwan C C van der Horst
- Department of Intensive Care Medicine, Maastricht University Medical Center, Maastricht, the Netherlands; Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, the Netherlands
| | - Jacobus F A Jansen
- Department of Radiology & Nuclear Medicine, Maastricht University Medical Center, Maastricht, the Netherlands; Research Institute of Mental Health & Neuroscience, Maastricht University, Maastricht, the Netherlands; Department of Electrical Engineering, Eindhoven University of Technology, Eindhoven, the Netherlands.
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4
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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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5
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Rittmannsberger H, Barth M, Lamprecht B, Malik P, Yazdi-Zorn K. [Interaction of somatic findings and psychiatric symptoms in COVID-19. A scoping review]. NEUROPSYCHIATRIE : KLINIK, DIAGNOSTIK, THERAPIE UND REHABILITATION : ORGAN DER GESELLSCHAFT OSTERREICHISCHER NERVENARZTE UND PSYCHIATER 2024; 38:1-23. [PMID: 38055146 DOI: 10.1007/s40211-023-00487-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Accepted: 10/24/2023] [Indexed: 12/07/2023]
Abstract
An infection with SARS-CoV‑2 can affect the central nervous system, leading to neurological as well as psychiatric symptoms. In this respect, mechanisms of inflammation seem to be of much greater importance than the virus itself. This paper deals with the possible contributions of organic changes to psychiatric symptomatology and deals especially with delirium, cognitive symptoms, depression, anxiety, posttraumatic stress disorder and psychosis. Processes of neuroinflammation with infection of capillary endothelial cells and activation of microglia and astrocytes releasing high amounts of cytokines seem to be of key importance in all kinds of disturbances. They can lead to damage in grey and white matter, impairment of cerebral metabolism and loss of connectivity. Such neuroimmunological processes have been described as a organic basis for many psychiatric disorders, as affective disorders, psychoses and dementia. As the activation of the glia cells can persist for a long time after the offending agent has been cleared, this can contribute to long term sequalae of the infection.
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Affiliation(s)
- Hans Rittmannsberger
- Abteilung Psychiatrie und psychotherapeutische Medizin, Pyhrn-Eisenwurzen Klinikum Steyr, Steyr, Österreich.
| | - Martin Barth
- Abteilung Psychiatrie und psychotherapeutische Medizin, Pyhrn-Eisenwurzen Klinikum Steyr, Steyr, Österreich
| | - Bernd Lamprecht
- Med Campus III, Universitätsklinik für Innere Medizin mit Schwerpunkt Pneumologie, Kepler Universitätsklinikum GmbH, Linz, Österreich
- Medizinische Fakultät, Johannes Kepler Universität Linz, Linz, Österreich
| | - Peter Malik
- Abteilung Psychiatrie und psychotherapeutische Medizin, Pyhrn-Eisenwurzen Klinikum Steyr, Steyr, Österreich
| | - Kurosch Yazdi-Zorn
- Neuromed Campus, Klinik für Psychiatrie mit Schwerpunkt Suchtmedizin, Kepler Universitätsklinikum GmbH, Linz, Österreich
- Medizinische Fakultät, Johannes Kepler Universität Linz, Linz, Österreich
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6
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Bungenberg J, Hohenfeld C, Costa AS, Heine J, Schwichtenberg K, Hartung T, Franke C, Binkofski F, Schulz JB, Finke C, Reetz K. Characteristic functional connectome related to Post-COVID-19 syndrome. Sci Rep 2024; 14:4997. [PMID: 38424415 PMCID: PMC10904373 DOI: 10.1038/s41598-024-54554-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 02/14/2024] [Indexed: 03/02/2024] Open
Abstract
Post-COVID-19 syndrome is a serious complication following SARS-CoV-2 infection, characterized primarily by fatigue and cognitive complaints. Although first metabolic and structural imaging alterations in Post-COVID-19 syndrome have been identified, their functional consequences remain unknown. Thus, we explored the impact of Post-COVID-19 syndrome on the functional connectome of the brain providing a deeper understanding of pathophysiological mechanisms. In a cross-sectional observational study, resting-state functional magnetic resonance imaging data of 66 patients with Post-COVID-19 syndrome after mild infection (mean age 42.3 years, 57 female) and 57 healthy controls (mean age 42.1 years, 38 female) with a mean time of seven months after acute COVID-19 were analysed using a graph theoretical approach. Network features were quantified using measures including mean distance, nodal degree, betweenness and Katz centrality, and compared between both groups. Graph measures were correlated with clinical measures quantifying fatigue, cognitive function, affective symptoms and sleep disturbances. Alterations were mainly found in the brainstem, olfactory cortex, cingulate cortex, thalamus and cerebellum on average seven months after SARS-CoV-2 infection. Additionally, strong correlations between fatigue severity, cognitive functioning and daytime sleepiness from clinical scales and graph measures were observed. Our study confirms functional relevance of brain imaging changes in Post-COVID-19 syndrome as mediating factors for persistent symptoms and improves our pathophysiological understanding.
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Affiliation(s)
- Julia Bungenberg
- Department of Neurology, RWTH Aachen University, Pauwelsstraße 30, 52074, Aachen, Germany
- JARA Brain Institute Molecular Neuroscience and Neuroimaging (INM-11), Research Centre Jülich and RWTH Aachen University, 52056, Aachen, Germany
| | - Christian Hohenfeld
- Department of Neurology, RWTH Aachen University, Pauwelsstraße 30, 52074, Aachen, Germany
- JARA Brain Institute Molecular Neuroscience and Neuroimaging (INM-11), Research Centre Jülich and RWTH Aachen University, 52056, Aachen, Germany
| | - Ana S Costa
- Department of Neurology, RWTH Aachen University, Pauwelsstraße 30, 52074, Aachen, Germany
- JARA Brain Institute Molecular Neuroscience and Neuroimaging (INM-11), Research Centre Jülich and RWTH Aachen University, 52056, Aachen, Germany
| | - Josephine Heine
- Department of Neurology, Charité-Universitätsmedizin Berlin, 10117, Berlin, Germany
- Faculty of Philosophy, Berlin School of Mind and Brain, Humboldt-Universität zu Berlin, 10117, Berlin, Germany
| | - Katia Schwichtenberg
- Department of Neurology, Charité-Universitätsmedizin Berlin, 10117, Berlin, Germany
- Faculty of Philosophy, Berlin School of Mind and Brain, Humboldt-Universität zu Berlin, 10117, Berlin, Germany
| | - Tim Hartung
- Department of Neurology, Charité-Universitätsmedizin Berlin, 10117, Berlin, Germany
- Faculty of Philosophy, Berlin School of Mind and Brain, Humboldt-Universität zu Berlin, 10117, Berlin, Germany
| | - Christiana Franke
- Department of Neurology, Charité-Universitätsmedizin Berlin, 10117, Berlin, Germany
- Faculty of Philosophy, Berlin School of Mind and Brain, Humboldt-Universität zu Berlin, 10117, Berlin, Germany
| | - Ferdinand Binkofski
- Department of Neurology, RWTH Aachen University, Pauwelsstraße 30, 52074, Aachen, Germany
- Division for Clinical Cognitive Sciences, Department of Neurology, RWTH Aachen University, 52074, Aachen, Germany
- Institute for Neuroscience and Medicine (INM-4), Research Center Jülich GmbH, 52425, Jülich, Germany
| | - Jörg B Schulz
- Department of Neurology, RWTH Aachen University, Pauwelsstraße 30, 52074, Aachen, Germany
- JARA Brain Institute Molecular Neuroscience and Neuroimaging (INM-11), Research Centre Jülich and RWTH Aachen University, 52056, Aachen, Germany
| | - Carsten Finke
- Department of Neurology, Charité-Universitätsmedizin Berlin, 10117, Berlin, Germany
- Faculty of Philosophy, Berlin School of Mind and Brain, Humboldt-Universität zu Berlin, 10117, Berlin, Germany
| | - Kathrin Reetz
- Department of Neurology, RWTH Aachen University, Pauwelsstraße 30, 52074, Aachen, Germany.
- JARA Brain Institute Molecular Neuroscience and Neuroimaging (INM-11), Research Centre Jülich and RWTH Aachen University, 52056, Aachen, Germany.
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7
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Lee JD, Solomon IH, Slack FJ, Mavrikaki M. Cognition-associated long noncoding RNAs are dysregulated upon severe COVID-19. Front Immunol 2024; 15:1290523. [PMID: 38410515 PMCID: PMC10894962 DOI: 10.3389/fimmu.2024.1290523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 01/23/2024] [Indexed: 02/28/2024] Open
Abstract
Severe COVID-19 leads to widespread transcriptomic changes in the human brain, mimicking diminished cognitive performance. As long noncoding RNAs (lncRNAs) play crucial roles in the regulation of gene expression, identification of the lncRNAs differentially expressed upon COVID-19 may nominate key regulatory nodes underpinning cognitive changes. Here we identify hundreds of lncRNAs differentially expressed in the brains of COVID-19 patients relative to uninfected age/sex-matched controls, many of which are associated with decreased cognitive performance and inflammatory cytokine response. Our analyses reveal pervasive transcriptomic changes in lncRNA expression upon severe COVID-19, which may serve as key regulators of neurocognitive changes in the brain.
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Affiliation(s)
- Jonathan D. Lee
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States
| | - Isaac H. Solomon
- Department of Pathology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, United States
| | - Frank J. Slack
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States
- Harvard Medical School Initiative for RNA Medicine, Harvard Medical School, Boston, MA, United States
| | - Maria Mavrikaki
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States
- Harvard Medical School Initiative for RNA Medicine, Harvard Medical School, Boston, MA, United States
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8
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Lin K, Gao Y, Ji W, Li Y, Wang W, Du M, Liu J, Hong Z, Jiang T, Wang Y. Attentional impairment and altered brain activity in healthcare workers after mild COVID-19. Brain Imaging Behav 2024:10.1007/s11682-024-00851-4. [PMID: 38296922 DOI: 10.1007/s11682-024-00851-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/05/2024] [Indexed: 02/02/2024]
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-COV-2) is highly transmissible and pathogenic. Patients with mild cases account for the majority of those infected with coronavirus disease 2019 (COVID-19). Although there is evidence that many patients with COVID-19 have varying degrees of attentional impairment, little is known about how SARS-COV-2 affects attentional function. This study included a high-risk healthcare population divided into groups of healthcare workers (HCWs) with mild COVID-19 (patient group, n = 45) and matched healthy HCWs controls (HC group, n = 42), who completed general neuropsychological background tests and Attention Network Test (ANT), and underwent resting-state functional magnetic resonance imaging (rs-fMRI) using amplitude of low-frequency fluctuation (ALFF) to assess altered brain activity; Selective impairment occurred in orienting and executive control networks, but not in alert network, in the patient group, and widespread cognitive impairment encompassing general attention, memory, and executive dysfunction. Moreover, the patient group had significantly lower ALFF values in the left superior and left middle frontal gyri than the HC group. SARS-COV-2 infection may have led to reduced brain activity in the left superior and left middle frontal gyri, thus impairing attentional orienting and executive control networks, which may explain the development of attentional deficits after COVID-19.
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Affiliation(s)
- Keyi Lin
- Department of Neurosurgery, The First Affiliated Hospital of Anhui Medical University, Hefei, China
- Anhui Public Health Clinical Center, Hefei, China
| | - Yaotian Gao
- Department of Neurosurgery, The First Affiliated Hospital of Anhui Medical University, Hefei, China
- Anhui Public Health Clinical Center, Hefei, China
| | - Wei Ji
- Department of Neurosurgery, The First Affiliated Hospital of Anhui Medical University, Hefei, China
- Anhui Public Health Clinical Center, Hefei, China
- Department of Neurosurgery, Hefei Huaan Brain Hospital, Hefei, China
| | - Yan Li
- Anhui Public Health Clinical Center, Hefei, China
- Department of Radiology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Wei Wang
- Department of Neurosurgery, The Second Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Mengcheng Du
- Department of Neurosurgery, The Second Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Jia Liu
- Anhui Public Health Clinical Center, Hefei, China
- Department of Radiology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Zhengyu Hong
- Anhui Public Health Clinical Center, Hefei, China
- Department of Radiology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Tao Jiang
- Department of Neurosurgery, The First Affiliated Hospital of Anhui Medical University, Hefei, China.
- Anhui Public Health Clinical Center, Hefei, China.
- Anhui Provincial Institute of Translational Medicine, Hefei, China.
| | - Yuyang Wang
- Department of Neurosurgery, The Second Affiliated Hospital of Anhui Medical University, Hefei, China.
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9
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Ikemizu Y, Oda Y, Hirose Y, Sasaki T, Iyo M. Cerebellar and Occipital Alterations in Brain Perfusion in a Patient With Post-acute COVID-19 Encephalopathy Misdiagnosed As Primary Psychotic Disorder. Cureus 2024; 16:e52953. [PMID: 38406081 PMCID: PMC10894069 DOI: 10.7759/cureus.52953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/24/2024] [Indexed: 02/27/2024] Open
Abstract
We describe the case of an unvaccinated 21-year-old Japanese male who experienced psychotic symptoms attributed to encephalopathy, known as post-acute COVID-19 syndrome (PACS). One week after his discharge following the remission of a SARS-CoV-2 infection, he experienced hyperactive delirium and unexpected movements of his limbs. As COVID-19-associated encephalopathy was suspected as a cause of the psychotic symptoms, he was admitted to the Department of Neurology. He received antiviral and steroid pulse therapy, but his psychiatric symptoms did not improve completely. Consequently, he was admitted to our psychiatric ward with a diagnosis of a primary psychotic disorder. Although he did not take psychopharmacotherapy, he gradually achieved a remission of psychiatric symptoms. At three months post-SARS-CoV-2 infection, single-photon emission computed tomography (SPECT) revealed hypoperfusion in the bilateral cerebellar dentate nuclei and occipital lobes. However, no abnormal findings were observed on fluorine-18 fluoro-deoxy-glucose positron emission tomography (18F-FDG PET) at six months after the infection. This case indicates that (1) brain perfusion SPECT can be effective for detecting functional alterations in post-acute COVID-19-associated encephalopathy, and (2) it is necessary to carefully monitor patients' progress instead of quickly diagnosing a primary psychotic disorder.
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Affiliation(s)
- Yuki Ikemizu
- Department of Psychiatry, Graduate School of Medicine, Chiba University, Chiba, JPN
- Research Center for Child Mental Development, Chiba University, Chiba, JPN
| | - Yasunori Oda
- Department of Psychiatry, Graduate School of Medicine, Chiba University, Chiba, JPN
| | - Yuki Hirose
- Department of Psychiatry, Graduate School of Medicine, Chiba University, Chiba, JPN
| | - Tsuyoshi Sasaki
- Department of Child Psychiatry, Chiba University Hospital, Chiba, JPN
| | - Masaomi Iyo
- Department of Psychiatry, Graduate School of Medicine, Chiba University, Chiba, JPN
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10
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Zhao S, Toniolo S, Hampshire A, Husain M. Effects of COVID-19 on cognition and brain health. Trends Cogn Sci 2023; 27:1053-1067. [PMID: 37657964 PMCID: PMC10789620 DOI: 10.1016/j.tics.2023.08.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 08/08/2023] [Accepted: 08/08/2023] [Indexed: 09/03/2023]
Abstract
COVID-19 is associated with a range of neurological, cognitive, and mental health symptoms both acutely and chronically that can persist for many months after infection in people with long-COVID syndrome. Investigations of cognitive function and neuroimaging have begun to elucidate the nature of some of these symptoms. They reveal that, although cognitive deficits may be related to brain imaging abnormalities in some people, symptoms can also occur in the absence of objective cognitive deficits or neuroimaging changes. Furthermore, cognitive impairment may be detected even in asymptomatic individuals. We consider the evidence regarding symptoms, cognitive deficits, and neuroimaging, as well as their possible underlying mechanisms.
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Affiliation(s)
- Sijia Zhao
- Department of Experimental Psychology, University of Oxford, Oxford OX2 6GG, UK.
| | - Sofia Toniolo
- Nuffield Department of Clinical Neurosciences, John Radcliffe Hospital, University of Oxford, Oxford OX3 9DU, UK; Wellcome Trust Centre for Integrative Neuroimaging, Department of Experimental Psychology, University of Oxford, Oxford OX2 6AE, UK
| | - Adam Hampshire
- Department of Brain Sciences, Imperial College London, 926 Sir Michael Uren Hub, 86 Wood Lane, London W12 0BZ, UK
| | - Masud Husain
- Department of Experimental Psychology, University of Oxford, Oxford OX2 6GG, UK; Nuffield Department of Clinical Neurosciences, John Radcliffe Hospital, University of Oxford, Oxford OX3 9DU, UK; Wellcome Trust Centre for Integrative Neuroimaging, Department of Experimental Psychology, University of Oxford, Oxford OX2 6AE, UK.
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11
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Zorzo C, Solares L, Mendez M, Mendez-Lopez M. Hippocampal alterations after SARS-CoV-2 infection: A systematic review. Behav Brain Res 2023; 455:114662. [PMID: 37703951 DOI: 10.1016/j.bbr.2023.114662] [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: 06/23/2023] [Revised: 08/30/2023] [Accepted: 09/08/2023] [Indexed: 09/15/2023]
Abstract
SARS-CoV-2 infection produces a wide range of symptoms. Some of the structural changes caused by the virus in the nervous system are found in the medial temporal lobe, and several neuropsychological sequelae of COVID-19 are related to the function of the hippocampus. The main objective of the systematic review is to update and further analyze the existing evidence of hippocampal and related cortices' structural and functional alterations due to SARS-CoV-2 infection. Both clinical and preclinical studies that used different methodologies to explore the effects of this disease at different stages and grades of severity were considered, besides exploring related cognitive and emotional symptomatology. A total of 24 studies were identified by searching in SCOPUS, Web Of Science (WOS), PubMed, and PsycInfo databases up to October 3rd, 2022. Thirteen studies were performed in clinical human samples, 9 included preclinical animal models, 3 were performed post-mortem, and 1 included both post-mortem and preclinical samples. Alterations in the hippocampus were detected in the acute stage and after several months of infection. Clinical studies revealed alterations in hippocampal connectivity and metabolism. Memory alterations correlated with altered metabolic profiles or changes in grey matter volumes. Hippocampal human postmortem and animal studies observed alterations in neurogenesis, dendrites, and immune response, besides high apoptosis and neuroinflammation. Preclinical studies reported the viral load in the hippocampus. Olfactory dysfunction was associated with alterations in brain functionality. Several clinical studies revealed cognitive complaints, neuropsychological alterations, and depressive and anxious symptomatology.
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Affiliation(s)
- Candela Zorzo
- Neuroscience Institute of Principado de Asturias (INEUROPA), Faculty of Psychology, Plaza Feijoo s/n, 33003 Oviedo, Asturias, Spain; Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Av. del Hospital Universitario, s/n, 33011 Oviedo, Asturias, Spain; Department of Psychology, University of Oviedo, Faculty of Psychology, Plaza Feijoo s/n, 33003 Oviedo, Asturias, Spain.
| | - Lucía Solares
- Department of Psychology, University of Oviedo, Faculty of Psychology, Plaza Feijoo s/n, 33003 Oviedo, Asturias, Spain.
| | - Marta Mendez
- Neuroscience Institute of Principado de Asturias (INEUROPA), Faculty of Psychology, Plaza Feijoo s/n, 33003 Oviedo, Asturias, Spain; Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Av. del Hospital Universitario, s/n, 33011 Oviedo, Asturias, Spain; Department of Psychology, University of Oviedo, Faculty of Psychology, Plaza Feijoo s/n, 33003 Oviedo, Asturias, Spain.
| | - Magdalena Mendez-Lopez
- Department of Psychology and Sociology, University of Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Aragón, Spain; IIS Aragón, San Juan Bosco, 13, 50009 Zaragoza, Aragón, Spain.
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12
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Tang SW, Helmeste DM, Leonard BE. COVID-19 as a polymorphic inflammatory spectrum of diseases: a review with focus on the brain. Acta Neuropsychiatr 2023; 35:248-269. [PMID: 36861428 DOI: 10.1017/neu.2023.17] [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] [Indexed: 03/03/2023]
Abstract
There appear to be huge variations and aberrations in the reported data in COVID-19 2 years now into the pandemic. Conflicting data exist at almost every level and also in the reported epidemiological statistics across different regions. It is becoming clear that COVID-19 is a polymorphic inflammatory spectrum of diseases, and there is a wide range of inflammation-related pathology and symptoms in those infected with the virus. The host's inflammatory response to COVID-19 appears to be determined by genetics, age, immune status, health status and stage of disease. The interplay of these factors may decide the magnitude, duration, types of pathology, symptoms and prognosis in the spectrum of COVID-19 disorders, and whether neuropsychiatric disorders continue to be significant. Early and successful management of inflammation reduces morbidity and mortality in all stages of COVID-19.
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Affiliation(s)
- Siu Wa Tang
- Department of Psychiatry, University of California, Irvine, Irvine, CA, USA
- Institute of Brain Medicine, Hong Kong, China
| | - Daiga Maret Helmeste
- Department of Psychiatry, University of California, Irvine, Irvine, CA, USA
- Institute of Brain Medicine, Hong Kong, China
| | - Brian E Leonard
- Institute of Brain Medicine, Hong Kong, China
- Department of Pharmacology, National University of Ireland, Galway, Ireland
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13
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Tziolos NR, Ioannou P, Baliou S, Kofteridis DP. Long COVID-19 Pathophysiology: What Do We Know So Far? Microorganisms 2023; 11:2458. [PMID: 37894116 PMCID: PMC10609046 DOI: 10.3390/microorganisms11102458] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 09/17/2023] [Accepted: 09/29/2023] [Indexed: 10/29/2023] Open
Abstract
Long COVID-19 is a recognized entity that affects millions of people worldwide. Its broad clinical symptoms include thrombotic events, brain fog, myocarditis, shortness of breath, fatigue, muscle pains, and others. Due to the binding of the virus with ACE-2 receptors, expressed in many organs, it can potentially affect any system; however, it most often affects the cardiovascular, central nervous, respiratory, and immune systems. Age, high body mass index, female sex, previous hospitalization, and smoking are some of its risk factors. Despite great efforts to define its pathophysiology, gaps remain to be explained. The main mechanisms described in the literature involve viral persistence, hypercoagulopathy, immune dysregulation, autoimmunity, hyperinflammation, or a combination of these. The exact mechanisms may differ from system to system, but some share the same pathways. This review aims to describe the most prevalent pathophysiological pathways explaining this syndrome.
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Affiliation(s)
- Nikolaos-Renatos Tziolos
- Department of Internal Medicine & Infectious Diseases, University Hospital of Heraklion, 71110 Heraklion, Greece (D.P.K.)
| | - Petros Ioannou
- Department of Internal Medicine & Infectious Diseases, University Hospital of Heraklion, 71110 Heraklion, Greece (D.P.K.)
- School of Medicine, University of Crete, 71003 Heraklion, Greece
| | - Stella Baliou
- School of Medicine, University of Crete, 71003 Heraklion, Greece
| | - Diamantis P. Kofteridis
- Department of Internal Medicine & Infectious Diseases, University Hospital of Heraklion, 71110 Heraklion, Greece (D.P.K.)
- School of Medicine, University of Crete, 71003 Heraklion, Greece
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14
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Yulug B, Ayyıldız B, Ayyıldız S, Sayman D, Salar AB, Cankaya S, Ozdemir Oktem E, Ozsimsek A, Kurt CC, Lakadamyalı H, Akturk A, Altay Ö, Hanoglu L, Velioglu HA, Mardinoglu A. Infection with COVID-19 is no longer a public emergency: But what about degenerative dementia? J Med Virol 2023; 95:e29072. [PMID: 37724347 DOI: 10.1002/jmv.29072] [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: 05/19/2023] [Revised: 08/16/2023] [Accepted: 08/23/2023] [Indexed: 09/20/2023]
Abstract
Although no longer considered a public health threat, post-COVID cognitive syndrome continues to impact on a considerable proportion of individuals who were infected with COVID-19. Recent studies have also suggested that COVID may be represent a critical risk factor for the development of Alzheimer's disease (AD). We compared 17 COVID patients with 20 controls and evaluated the effects of COVID-19 on general cognitive performance, hippocampal volume, and connections using structural and seed-based connectivity analysis. We showed that COVID patients exhibited considerably worse cognitive functioning and increased hippocampal connectivity supported by the strong correlation between hippocampal connectivity and cognitive scores. Our findings of higher hippocampal connectivity with no observable hippocampal morphological changes even in mild COVID cases may be represent evidence of a prestructural compensatory mechanism for stimulating additional neuronal resources to combat cognitive dysfunction as recently shown for the prodromal stages of degenerative cognitive disorders. Our findings may be also important in light of recent data showing that other viral infections as well as COVID may constitute a critical risk factor for the development of AD. To our knowledge, this is the first study that investigated network differences in COVID patients, with a particular focus on compensatory hippocampal connectivity.
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Affiliation(s)
- Burak Yulug
- Department of Neurology and Neuroscience, Alanya Alaaddin Keykubat University, Antalya, Turkey
| | - Behçet Ayyıldız
- Anatomy PhD Program, Graduate School of Health Sciences, Kocaeli University, Istanbul, Turkey
| | - Sevilay Ayyıldız
- Anatomy PhD Program, Graduate School of Health Sciences, Kocaeli University, Istanbul, Turkey
- Department of Neuroradiology, School of Medicine, Technical University of Munich, Munich, Germany
- TUM-NIC Neuroimaging Center, School of Medicine, Technical University of Munich, Munich, Germany
| | - Dila Sayman
- Department of Neurology and Neuroscience, Alanya Alaaddin Keykubat University, Antalya, Turkey
| | - Ali Behram Salar
- Department of Neuroscience, Faculty of Medicine, Istanbul Medipol University, Istanbul, Türkiye
| | - Seyda Cankaya
- Department of Neurology and Neuroscience, Alanya Alaaddin Keykubat University, Antalya, Turkey
| | - Ece Ozdemir Oktem
- Department of Neurology and Neuroscience, Alanya Alaaddin Keykubat University, Antalya, Turkey
| | - Ahmet Ozsimsek
- Department of Neurology and Neuroscience, Alanya Alaaddin Keykubat University, Antalya, Turkey
| | - Cagla Ceren Kurt
- Department of Physiotherapy, Alanya Alaaddin Keykubat University, Antalya, Turkey
| | - Hatice Lakadamyalı
- Department of Radiology, Alanya Alaaddin Keykubat University, Antalya, Turkey
| | - Aynur Akturk
- Department of Neurology and Neuroscience, Alanya Alaaddin Keykubat University, Antalya, Turkey
| | - Özlem Altay
- KTH-Royal Institute of Technology, Stockholm, Sweden
| | - Lutfu Hanoglu
- Department of Neurology, Istanbul Medipol University, Istanbul, Turkey
| | - Halil Aziz Velioglu
- Department of Neuroscience, Faculty of Medicine, Istanbul Medipol University, Istanbul, Türkiye
- Center for Psychiatric Neuroscience, Feinstein Institute for Medical Research, Manhasset, New York, USA
| | - Adil Mardinoglu
- KTH-Royal Institute of Technology, Stockholm, Sweden
- King's College London, Faculty of Dentistry, London, UK
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15
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Sarıoğlu E, Sarıaltın SY, Çoban T. Neurological complications and effects of COVID-19: Symptoms and conceivable mechanisms. BRAIN HEMORRHAGES 2023; 4:154-173. [PMID: 36789140 PMCID: PMC9911160 DOI: 10.1016/j.hest.2023.02.001] [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: 01/12/2023] [Revised: 02/04/2023] [Accepted: 02/05/2023] [Indexed: 02/11/2023] Open
Abstract
A novel coronavirus, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) was first identified in December 2019 in Wuhan, China. The new coronavirus disease (COVID-19) was declared a global pandemic by the World Health Organization (WHO) in March 2020. SARS-CoV-2 can invade the nervous system aside from infecting the respiratory system as its primary target. The most common nervous system symptoms of COVID-19 are stated as headache, myalgia, fatigue, nausea, vomiting, sudden and unexplained anosmia, and ageusia. More severe conditions such as encephalomyelitis, acute myelitis, thromboembolic events, ischemic stroke, intracerebral hemorrhage, Guillain-Barré-syndrome, Bell's palsy, rhabdomyolysis, and even coma have also been reported. Cohort studies revealed that neurological findings are associated with higher morbidity and mortality. The neurological symptoms and manifestations caused by SARS-CoV-2 and COVID-19 are examined and summarized in this article.
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Affiliation(s)
- Elif Sarıoğlu
- Ankara University, Faculty of Pharmacy, Department of Pharmaceutical Toxicology, 06560 Ankara, Turkey
| | - Sezen Yılmaz Sarıaltın
- Ankara University, Faculty of Pharmacy, Department of Pharmaceutical Toxicology, 06560 Ankara, Turkey
| | - Tülay Çoban
- Ankara University, Faculty of Pharmacy, Department of Pharmaceutical Toxicology, 06560 Ankara, Turkey
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16
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Li R, Liu G, Zhang X, Zhang M, Lu J, Li H. Altered intrinsic brain activity and functional connectivity in COVID-19 hospitalized patients at 6-month follow-up. BMC Infect Dis 2023; 23:521. [PMID: 37553613 PMCID: PMC10410836 DOI: 10.1186/s12879-023-08331-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Accepted: 05/15/2023] [Indexed: 08/10/2023] Open
Abstract
BACKGROUND Although most patients can recover from SARS-CoV-2 infection during the short-term, the long-term effects of COVID-19 on the brain remain explored. Functional MRI (fMRI) could potentially elucidate or otherwise contribute to the investigation of the long COVID syndrome. A lower fMRI response would be translated into decreased brain activity or delayed signal transferring reflecting decreased connectivity. This research aimed to investigate the long-term alterations in the local (regional) brain activity and remote (interregional) functional connection in recovered COVID-19. METHODS Thirty-five previously hospitalized COVID-19 patients underwent 3D T1weighed imaging and resting-state fMRI at 6-month follow-up, and 36 demographic-matched healthy controls (HCs) were recruited accordingly. The amplitude of low-frequency fluctuation (ALFF) and seed-based functional connectivity (FC) was used to assess the regional intrinsic brain activity and the influence of regional disturbances on FC with other brain regions. Spearman correlation analyses were performed to evaluate the association between brain function changes and clinical variables. RESULTS The incidence of neurosymptoms (6/35, 17.14%) decreased significantly at 6-month follow-up, compared with COVID-19 hospitalization stage (21/35, 60%). Compared with HCs, recovered COVID-19 exhibited higher ALFF in right precuneus, middle temporal gyrus, middle and inferior occipital gyrus, lower ALFF in right middle frontal gyrus and bilateral inferior temporal gyrus. Furthermore, setting seven abnormal activity regions as seeds, we found increased FC between right middle occipital gyrus and left inferior occipital gyrus, and reduced FC between right inferior occipital gyrus and right inferior temporal gyrus/bilateral fusiform gyrus, and between right middle frontal gyrus and right middle frontal gyrus/ supplementary motor cortex/ precuneus. Additionally, abnormal ALFF and FC were associated with clinical variables. CONCLUSIONS COVID-19 related neurological symptoms can self heal over time. Recovered COVID-19 presented functional alterations in right frontal, temporal and occipital lobe at 6-month follow-up. Most regional disturbances in ALFF were related to the weakening of short-range regional interactions in the same brain function.
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Affiliation(s)
- Ruili Li
- Department of Radiology and Nuclear Medicine, Xuanwu Hospital, Capital Medical University, No.45 Changchun Street, Xicheng District, Beijing, 100053, China
- Department of Radiology, Beijing Youan Hospital, Capital Medical University, No.8 Xi Tou Tiao Youanmen Wai, Fengtai District, Beijing, 100069, China
- Beijing Key Laboratory of Magnetic Resonance Imaging and Brain Informatics, Beijing, 100053, China
| | - Guangxue Liu
- Department of Natural Medicines, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing, 100191, China
| | - Xiaodong Zhang
- Department of Radiology, Tianjin First Central Hospital, Nankai University, Tianjin, 300192, China
| | - Miao Zhang
- Department of Radiology and Nuclear Medicine, Xuanwu Hospital, Capital Medical University, No.45 Changchun Street, Xicheng District, Beijing, 100053, China
- Beijing Key Laboratory of Magnetic Resonance Imaging and Brain Informatics, Beijing, 100053, China
| | - Jie Lu
- Department of Radiology and Nuclear Medicine, Xuanwu Hospital, Capital Medical University, No.45 Changchun Street, Xicheng District, Beijing, 100053, China.
- Beijing Key Laboratory of Magnetic Resonance Imaging and Brain Informatics, Beijing, 100053, China.
| | - Hongjun Li
- Department of Radiology, Beijing Youan Hospital, Capital Medical University, No.8 Xi Tou Tiao Youanmen Wai, Fengtai District, Beijing, 100069, China.
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17
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Kotzalidis GD, Ferrara OM, Margoni S, Ieritano V, Restaino A, Bernardi E, Fischetti A, Catinari A, Monti L, Chieffo DPR, Simonetti A, Sani G. Are the Post-COVID-19 Posttraumatic Stress Disorder (PTSD) Symptoms Justified by the Effects of COVID-19 on Brain Structure? A Systematic Review. J Pers Med 2023; 13:1140. [PMID: 37511753 PMCID: PMC10381510 DOI: 10.3390/jpm13071140] [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: 05/02/2023] [Revised: 07/07/2023] [Accepted: 07/12/2023] [Indexed: 07/30/2023] Open
Abstract
COVID-19 affects brain function, as deduced by the "brain fog" that is often encountered in COVID-19 patients and some cognitive impairment that is observed in many a patient in the post-COVID-19 period. Approximately one-third of patients, even when they have recovered from the acute somatic disease, continue to show posttraumatic stress disorder (PTSD) symptoms. We hypothesized that the persistent changes induced by COVID-19 on brain structure would overlap with those associated with PTSD. We performed a thorough PubMed search on 25 April 2023 using the following strategy: ((posttraumatic OR PTSD) AND COVID-19 AND (neuroimaging OR voxel OR VBM OR freesurfer OR structural OR ROI OR whole-brain OR hippocamp* OR amygd* OR "deep gray matter" OR "cortical thickness" OR caudate OR striatum OR accumbens OR putamen OR "regions of interest" OR subcortical)) OR (COVID-19 AND brain AND (voxel[ti] OR VBM[ti] OR magnetic[ti] OR resonance[ti] OR imaging[ti] OR neuroimaging[ti] OR neuroimage[ti] OR positron[ti] OR photon*[ti] OR PET[ti] OR SPET[ti] OR SPECT[ti] OR spectroscop*[ti] OR MRS[ti])), which produced 486 records and two additional records from other sources, of which 36 were found to be eligible. Alterations were identified and described and plotted against the ordinary PTSD imaging findings. Common elements were hypometabolism in the insula and caudate nucleus, reduced hippocampal volumes, and subarachnoid hemorrhages, while white matter hyperintensities were widespread in both PTSD and post-COVID-19 brain infection. The comparison partly supported our initial hypothesis. These data may contribute to further investigation of the effects of long COVID on brain structure and function.
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Affiliation(s)
- Georgios D Kotzalidis
- NESMOS (Neurosciences, Mental Health, and Sensory Organs) Department, Faculty of Medicine and Psychology, Sant'Andrea Hospital, Sapienza-Università di Roma, 00189 Rome, Italy
- Department of Neuroscience, Section of Psychiatry, Fondazione Policlinico Universitario Agostino Gemelli IRCSS, 00168 Rome, Italy
- Centro Lucio Bini, 00193 Rome, Italy
| | - Ottavia Marianna Ferrara
- Department of Neuroscience, Section of Psychiatry, Fondazione Policlinico Universitario Agostino Gemelli IRCSS, 00168 Rome, Italy
| | - Stella Margoni
- Department of Neuroscience, Section of Psychiatry, Fondazione Policlinico Universitario Agostino Gemelli IRCSS, 00168 Rome, Italy
| | - Valentina Ieritano
- Department of Neuroscience, Section of Psychiatry, Fondazione Policlinico Universitario Agostino Gemelli IRCSS, 00168 Rome, Italy
| | - Antonio Restaino
- Department of Neuroscience, Section of Psychiatry, Fondazione Policlinico Universitario Agostino Gemelli IRCSS, 00168 Rome, Italy
| | - Evelina Bernardi
- Department of Neuroscience, Section of Psychiatry, Fondazione Policlinico Universitario Agostino Gemelli IRCSS, 00168 Rome, Italy
| | - Alessia Fischetti
- Department of Neuroscience, Section of Psychiatry, Fondazione Policlinico Universitario Agostino Gemelli IRCSS, 00168 Rome, Italy
| | - Antonello Catinari
- Department of Neuroscience, Section of Psychiatry, Fondazione Policlinico Universitario Agostino Gemelli IRCSS, 00168 Rome, Italy
| | - Laura Monti
- UOS Clinical Psychology, Clinical Government, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy
| | - Daniela Pia Rosaria Chieffo
- UOS Clinical Psychology, Clinical Government, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy
- Women, Children and Public Health Department, Catholic University of the Sacred Heart, 00168 Rome, Italy
| | - Alessio Simonetti
- Department of Neuroscience, Section of Psychiatry, Fondazione Policlinico Universitario Agostino Gemelli IRCSS, 00168 Rome, Italy
- Centro Lucio Bini, 00193 Rome, Italy
- Menninger Department of Psychiatry and Behavioral Sciences, Baylor College of Medicine, Houston, TX 77030, USA
- Institute of Psychiatry, Department of Neuroscience, Catholic University of the Sacred Heart, 00168 Rome, Italy
| | - Gabriele Sani
- Department of Neuroscience, Section of Psychiatry, Fondazione Policlinico Universitario Agostino Gemelli IRCSS, 00168 Rome, Italy
- Institute of Psychiatry, Department of Neuroscience, Catholic University of the Sacred Heart, 00168 Rome, Italy
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18
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Hameed R, Bahadur AR, Singh SB, Sher J, Todua M, Moradi L(M, Bastakoti S, Arslan M, Ajmal H, Lee GY, Ayubcha C, Werner TJ, Alavi A, Revheim ME. Neurological and Psychiatric Manifestations of Long COVID-19 and Their [ 18F]FDG PET Findings: A Review. Diagnostics (Basel) 2023; 13:2353. [PMID: 37510097 PMCID: PMC10378471 DOI: 10.3390/diagnostics13142353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 07/05/2023] [Accepted: 07/10/2023] [Indexed: 07/30/2023] Open
Abstract
For more than two years, lingering sequalae of COVID-19 have been extensively investigated. Approximately 10% of individuals infected by COVID-19 have been found to experience long-term symptoms termed "long COVID-19". The neurological and psychiatric manifestations of long COVID-19 are of particular concern. While pathogenesis remains unclear, emerging imaging studies have begun to better elucidate certain pathological manifestation. Of specific interest is imaging with [18F]FDG PET which directly reflects cellular glycolysis often linked to metabolic and inflammatory processes. Seeking to understand the molecular basis of neurological features of long COVID-19, this review encompasses the most recent [18F]FDG PET literature in this area.
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Affiliation(s)
- Rizwanullah Hameed
- Kingsbrook Jewish Medical Center, 585 Schenectady Avenue, New York, NY 11203, USA;
- Interfaith Medical Center, 1545 Atlantic Avenue, New York, NY 11213, USA
| | | | - Shashi Bhushan Singh
- Department of Radiology, Stanford University School of Medicine, Stanford, CA 94304, USA;
| | - Juwairah Sher
- Medical University of the Americas, 27 Jackson Road, Suite 302, Devens, MA 0134, USA;
| | - Maia Todua
- Department of Endocrinology, Tbilisi State Medical University, Vazha-Pshavela Ave. 33, 0186 Tbilisi, Georgia;
| | - Leah (Mahsa) Moradi
- Touro University, Touro College of Pharmacy, 3 Times Square, New York, NY 10036, USA;
| | | | - Maeen Arslan
- Dartmouth College Hanover, Hanover, NH 03755, USA;
| | - Hanfa Ajmal
- College of Public Health, University of South Florida, 4202 E Fowler Ave., Tampa, FL 33620, USA;
| | - Gha Young Lee
- Harvard Medical School, 25 Shattuck St., Boston, MA 02115, USA; (G.Y.L.); (C.A.)
| | - Cyrus Ayubcha
- Harvard Medical School, 25 Shattuck St., Boston, MA 02115, USA; (G.Y.L.); (C.A.)
| | - Thomas J. Werner
- Department of Radiology, Hospital of the University of Pennsylvania, 3400 Spruce St., Philadelphia, PA 19104, USA; (T.J.W.); (A.A.)
| | - Abass Alavi
- Department of Radiology, Hospital of the University of Pennsylvania, 3400 Spruce St., Philadelphia, PA 19104, USA; (T.J.W.); (A.A.)
| | - Mona-Elisabeth Revheim
- The Intervention Center, Rikshospitalet, Division for Technology and Innovation, Oslo University Hospital, 0424 Oslo, Norway
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, 0313 Oslo, Norway
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19
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Advani S, Hosseini SMM, Bozorgmehr R, Khameneh-Bagheri A, Mohammadzadeh S, Hasanzadeh T, Jalilian L, Vahidi M, Nofeli AH, Hooshyari Z. Abnormalities of brain imaging in COVID-19 patients with neurological symptoms. CURRENT JOURNAL OF NEUROLOGY 2023; 22:162-169. [PMID: 38011453 PMCID: PMC10626144 DOI: 10.18502/cjn.v22i3.13796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 05/09/2023] [Indexed: 11/29/2023]
Abstract
Background: Coronavirus disease 2019 (COVID-19) is a multisystem disease, manifested by several symptoms of various degrees. Severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) can affect the central nervous system (CNS) through several mechanisms and brain imaging plays an essential role in the diagnosis and evaluation of the neurological involvement of COVID-19. Moreover, brain imaging of patients with COVID-19 would result in a better understanding of SARS-CoV-2 neuro-pathophysiology. In this study, we evaluated the brain imaging findings of patients with COVID-19 in Shohada-e Tajrish Hospital, Tehran, Iran. Methods: This was a single-center, retrospective, and observational study. The hospital records and chest and brain computed tomography (CT) scans of patients with confirmed COVID-19 were reviewed. Results: 161 patients were included in this study (39.1% women, mean age: 60.84). Thirteen patients (8%) had ischemic strokes identified by brain CT. Subdural hematoma, subdural effusion, and subarachnoid hemorrhage were confirmed in three patients. Furthermore, there were four cases of intracranial hemorrhage (ICH) and intraventricular hemorrhage (IVH). Patients with and without abnormal brain CTs had similar average ages. The rate of brain CT abnormalities in both genders did not differ significantly. Moreover, abnormal brain CT was not associated with increased death rate. There was no significant difference in lung involvement (according to lung CT scan) between the two groups. Conclusion: Our experience revealed a wide range of imaging findings in patients with COVID-19 and these findings were not associated with a more severe lung involvement or increased rate of mortality.
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Affiliation(s)
- Soroor Advani
- Men’s Health and Reproductive Health Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Seyyed Mohammad Mahdi Hosseini
- School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Student Research Committee, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Rama Bozorgmehr
- Clinical Research Development Unit, Shohada-e Tajrish Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Arash Khameneh-Bagheri
- Department of Radiology, Shohada-e Tajrish Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sevda Mohammadzadeh
- School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Taha Hasanzadeh
- School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Laya Jalilian
- School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Vahidi
- School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Amir Hasan Nofeli
- School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Zahra Hooshyari
- Psychiatry and Psychology Research Center, Tehran University of Medical Sciences, Tehran, Iran
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20
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Ousseiran ZH, Fares Y, Chamoun WT. Neurological manifestations of COVID-19: a systematic review and detailed comprehension. Int J Neurosci 2023; 133:754-769. [PMID: 34433369 PMCID: PMC8506813 DOI: 10.1080/00207454.2021.1973000] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 07/25/2021] [Accepted: 08/16/2021] [Indexed: 12/13/2022]
Abstract
The current pandemic caused by severe acute respiratory syndrome corona virus 2 (SARS-CoV-2) is accompanied with a rapid increase of reports and papers detailing its neurological effects and symptoms. The virus infection causes respiratory illness named by the world health organization as corona virus 19 (COVID-19).This systematic review aims to study and summarize the different neurological manifestations of this virus. All articles published and indexed via Pubmed, Medline and Google Scholar databases between January 1st 2020 and February 28th 2021 that reported neurological symptoms of SARS-CoV-2 are reviewed following the Preferred Reporting Items for Systemic review and Meta-Analysis (PRISMA) guidelines.We included data from 113 articles: eight prospective studies, 25 retrospective studies and the rest were case reports/series. COVID-19 can present with central nervous system manifestations, such as headache, encephalitis and encephalopathy, peripheral nervous system manifestations, such as anosmia, ageusia and Guillian Barre syndrome, and skeletal muscle manifestations, such as myalgia and myasthenia gravis. Our systematic review showed that COVID-19 can be manifested by a wide spectrum of neurological symptoms reported either in the early stage or within the course of the disease. However, a detailed comprehension of these manifestations is required and more studies are needed in order to improve our scientific knowledge and to develop preventive and therapeutic measures to control this pandemic.
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Affiliation(s)
- Zeina Hassan Ousseiran
- Neuroscience Research Center, Faculty of Medical Sciences, Lebanese University, Beirut, Lebanon
| | - Youssef Fares
- Neuroscience Research Center, Faculty of Medical Sciences, Lebanese University, Beirut, Lebanon
| | - Wafaa Takash Chamoun
- Neuroscience Research Center, Faculty of Medical Sciences, Lebanese University, Beirut, Lebanon
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21
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Juby AG, Cunnane SC, Mager DR. Refueling the post COVID-19 brain: potential role of ketogenic medium chain triglyceride supplementation: an hypothesis. Front Nutr 2023; 10:1126534. [PMID: 37415915 PMCID: PMC10320593 DOI: 10.3389/fnut.2023.1126534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Accepted: 04/25/2023] [Indexed: 07/08/2023] Open
Abstract
COVID-19 infection causes cognitive changes in the acute phase, but also after apparent recovery. Over fifty post (long)-COVID symptoms are described, including cognitive dysfunction ("brain fog") precluding return to pre-COVID level of function, with rates twice as high in females. Additionally, the predominant demographic affected by these symptoms is younger and still in the workforce. Lack of ability to work, even for six months, has significant socio-economic consequences. This cognitive dysfunction is associated with impaired cerebral glucose metabolism, assessed using 18F-fluorodeoxyglucose-positron emission tomography (FDG-PET), showing brain regions that are abnormal compared to age and sex matched controls. In other cognitive conditions such as Alzheimer's disease (AD), typical patterns of cerebral glucose hypometabolism, frontal hypometabolism and cerebellar hypermetabolism are common. Similar FDG-PET changes have also been observed in post-COVID-19, raising the possibility of a similar etiology. Ketone bodies (B-hydroxybutyrate, acetoacetate and acetone) are produced endogenously with very low carbohydrate intake or fasting. They improve brain energy metabolism in the face of cerebral glucose hypometabolism in other conditions [mild cognitive impairment (MCI) and AD]. Long-term low carbohydrate intake or prolonged fasting is not usually feasible. Medium chain triglyceride (MCT) is an exogenous route to nutritional ketosis. Research has supported their efficacy in managing intractable seizures, and cognitive impairment in MCI and AD. We hypothesize that cerebral glucose hypometabolism associated with post COVID-19 infection can be mitigated with MCT supplementation, with the prediction that cognitive function would also improve. Although there is some suggestion that post COVID-19 cognitive symptoms may diminish over time, in many individuals this may take more than six months. If MCT supplementation is able to speed the cognitive recovery, this will impact importantly on quality of life. MCT is readily available and, compared to pharmaceutical interventions, is cost-effective. Research shows general tolerability with dose titration. MCT is a component of enteral and parenteral nutrition supplements, including in pediatrics, so has a long record of safety in vulnerable populations. It is not associated with weight gain or adverse changes in lipid profiles. This hypothesis serves to encourage the development of clinical trials evaluating the impact of MCT supplementation on the duration and severity of post COVID-19 cognitive symptoms.
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Affiliation(s)
- Angela G. Juby
- Division of Geriatrics, Department of Medicine, University of Alberta, Edmonton, AB, Canada
| | - Stephen C. Cunnane
- Research Center on Aging, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Diana R. Mager
- Agriculture Food and Nutrition Science, University of Alberta, Edmonton, AB, Canada
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22
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Cocciolillo F, Chieffo DPR, Giordano A, Arcangeli V, Lazzareschi I, Morello R, Zampino G, Valentini P, Buonsenso D. Case report: Post-COVID new-onset neurocognitive decline with bilateral mesial-temporal hypometabolism in two previously healthy sisters. Front Pediatr 2023; 11:1165072. [PMID: 37303754 PMCID: PMC10251436 DOI: 10.3389/fped.2023.1165072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 04/17/2023] [Indexed: 06/13/2023] Open
Abstract
Background Long coronavirus disease (COVID) is increasingly recognized in adults and children; however, it is still poorly characterized from a clinical and diagnostic perspective, particularly in the younger populations. Case presentation We described the story of two sisters-with high social and academic performance before their severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection-who reported severe neurocognitive problems, initially classified as psychologic pandemic distress and eventually found to have significant brain hypometabolism. Conclusions We provided a detailed clinical presentation of neurocognitive symptoms in two sisters with long COVID associated with brain hypometabolism documented in both sisters. We believe that the evidence of objective findings in these children further supports the hypothesis that organic events cause persisting symptoms in a cohort of children after SARS-CoV-2 infection. Such findings highlight the importance of discovering diagnostics and therapeutics.
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Affiliation(s)
- Fabrizio Cocciolillo
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, UOC di Medicina Nucleare, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
| | - Daniela Pia Rosaria Chieffo
- Clinical Psychology Unit, Fondazione Policlinico Universitario A Gemelli IRCCS, Rome, Italy
- Department of Woman, Children and Public Health, Catholic University of Sacred Heart, Rome, Italy
| | - Alessandro Giordano
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, UOC di Medicina Nucleare, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
- Sezione di Medicina Nucleare, Dipartimento di Scienze Radiologiche ed Ematologiche, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Valentina Arcangeli
- Clinical Psychology Unit, Fondazione Policlinico Universitario A Gemelli IRCCS, Rome, Italy
| | - Ilaria Lazzareschi
- Department of Woman and Child Health and Public Health, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Rosa Morello
- Department of Woman and Child Health and Public Health, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Giuseppe Zampino
- Department of Woman and Child Health and Public Health, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Piero Valentini
- Sezione di Medicina Nucleare, Dipartimento di Scienze Radiologiche ed Ematologiche, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Danilo Buonsenso
- Department of Woman and Child Health and Public Health, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
- Centro di Salute Globale, Università Cattolica del Sacro Cuore, Roma, Italy
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23
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Debs P, Khalili N, Solnes L, Al-Zaghal A, Sair HI, Yedavalli V, Luna LP. Post-COVID-19 Brain [ 18F] FDG-PET Findings: A Retrospective Single-Center Study in the United States. AJNR Am J Neuroradiol 2023; 44:517-522. [PMID: 37105680 PMCID: PMC10171380 DOI: 10.3174/ajnr.a7863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 03/05/2023] [Indexed: 04/29/2023]
Abstract
BACKGROUND AND PURPOSE The pathophysiology of neurologic manifestations of postacute sequelae of Severe Acute Respiratory Syndrome coronavirus 2 (SARS-CoV-2) infection is not clearly understood. Our aim was to investigate brain metabolic activity on [18F] FDG-PET/CT scans in patients with a history of coronavirus disease 2019 (COVID-19) infection before imaging. MATERIALS AND METHODS This retrospective study included 45 patients who underwent [18F] FDG-PET/CT imaging for any reason and had, at least once, tested positive for COVID-19 at any time before imaging. Fifteen patients had available [18F] FDG-PET scans obtained under identical conditions before the infection. A group of 52 patients with melanoma or multiple myeloma who underwent [18F] FDG-PET/CT were used as controls. Whole-brain 2-sample t test analysis was performed using SPM software to identify clusters of hypo- and hypermetabolism and compare brain metabolic activity between patients with COVID-19 and controls. Paired sample t test comparison was also performed for 15 patients, and correlations between metabolic values of clusters and clinical data were measured. RESULTS Compared with the control group, patients with a history of COVID-19 infection exhibited focal areas of hypometabolism in the bilateral frontal, parietal, occipital, and posterior temporal lobes and cerebellum (P = .05 uncorrected at the voxel level, family-wise error-corrected at the cluster level) that peaked during the first 2 months, improved to near-complete recovery around 6 months, and disappeared at 12 months. Hypermetabolism involving the brainstem, cerebellum, limbic structures, frontal cortex, and periventricular white matter was observed only at 2-6 months after infection. Older age, neurologic symptoms, and worse disease severity scores positively correlated with the metabolic changes. CONCLUSIONS This study demonstrates a profile of time-dependent brain PET hypo- and hypermetabolism in patients with confirmed SARS-CoV-2 infection.
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Affiliation(s)
- P Debs
- From the Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - N Khalili
- From the Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - L Solnes
- From the Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - A Al-Zaghal
- From the Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - H I Sair
- From the Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - V Yedavalli
- From the Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - L P Luna
- From the Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland
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24
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Bommarito G, Garibotto V, Frisoni GB, Assal F, Lalive PH, Allali G. The Two-Way Route between Delirium Disorder and Dementia: Insights from COVID-19. NEURODEGENER DIS 2023; 22:91-103. [PMID: 37054684 DOI: 10.1159/000530566] [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: 11/30/2022] [Accepted: 03/23/2023] [Indexed: 04/15/2023] Open
Abstract
BACKGROUND Delirium disorder is a frequent neurological complication of SARS-CoV-2 infection and associated with increased disease severity and mortality. Cognitive impairment is a major risk factor for developing delirium disorder during COVID-19, which, in turn, increases the risk of subsequent neurological complications and cognitive decline. SUMMARY The bidirectional connection between delirium disorder and dementia likely resides at multiple levels, and its pathophysiological mechanisms during COVID-19 include endothelial damage, blood-brain barrier dysfunction, and local inflammation, with activation of microglia and astrocytes. Here, we describe the putative pathogenic pathways underlying delirium disorder during COVID-19 and highlight how they cross with the ones leading to neurodegenerative dementia. KEY MESSAGES The analysis of the two-sided link can offer useful insights for confronting with long-term neurological consequences of COVID-19 and framing future prevention and early treatment strategies.
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Affiliation(s)
- Giulia Bommarito
- Department of Clinical Neurosciences, Lausanne University Hospitals and University of Lausanne, Lausanne, Switzerland
| | - Valentina Garibotto
- Division of Nuclear Medicine and Molecular Imaging, Geneva University Hospitals and NIMTlab, University of Geneva, Geneva, Switzerland
| | - Giovanni B Frisoni
- Memory Center and LANVIE-Laboratory of Neuroimaging of Aging, Geneva University Hospitals and University of Geneva, Geneva, Switzerland
| | - Frédéric Assal
- Department of Clinical Neurosciences, Geneva University Hospitals and University of Geneva, Geneva, Switzerland
| | - Patrice H Lalive
- Department of Clinical Neurosciences, Geneva University Hospitals and University of Geneva, Geneva, Switzerland
- Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland
- Division of Laboratory Medicine, Diagnostic Department, Geneva University Hospitals, Geneva, Switzerland
| | - Gilles Allali
- Department of Clinical Neurosciences, Geneva University Hospitals and University of Geneva, Geneva, Switzerland
- Division of Cognitive and Motor Aging, Department of Neurology, Albert Einstein College of Medicine, Yeshiva University, Bronx, New York, USA
- Leenaards Memory Center, Lausanne University Hospitals and University of Lausanne, Lausanne, Switzerland
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25
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Ajčević M, Iscra K, Furlanis G, Michelutti M, Miladinović A, Buoite Stella A, Ukmar M, Cova MA, Accardo A, Manganotti P. Cerebral hypoperfusion in post-COVID-19 cognitively impaired subjects revealed by arterial spin labeling MRI. Sci Rep 2023; 13:5808. [PMID: 37037833 PMCID: PMC10086005 DOI: 10.1038/s41598-023-32275-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Accepted: 03/24/2023] [Indexed: 04/12/2023] Open
Abstract
Cognitive impairment is one of the most prevalent symptoms of post Severe Acute Respiratory Syndrome COronaVirus 2 (SARS-CoV-2) state, which is known as Long COVID. Advanced neuroimaging techniques may contribute to a better understanding of the pathophysiological brain changes and the underlying mechanisms in post-COVID-19 subjects. We aimed at investigating regional cerebral perfusion alterations in post-COVID-19 subjects who reported a subjective cognitive impairment after a mild SARS-CoV-2 infection, using a non-invasive Arterial Spin Labeling (ASL) MRI technique and analysis. Using MRI-ASL image processing, we investigated the brain perfusion alterations in 24 patients (53.0 ± 14.5 years, 15F/9M) with persistent cognitive complaints in the post COVID-19 period. Voxelwise and region-of-interest analyses were performed to identify statistically significant differences in cerebral blood flow (CBF) maps between post-COVID-19 patients, and age and sex matched healthy controls (54.8 ± 9.1 years, 13F/9M). The results showed a significant hypoperfusion in a widespread cerebral network in the post-COVID-19 group, predominantly affecting the frontal cortex, as well as the parietal and temporal cortex, as identified by a non-parametric permutation testing (p < 0.05, FWE-corrected with TFCE). The hypoperfusion areas identified in the right hemisphere regions were more extensive. These findings support the hypothesis of a large network dysfunction in post-COVID subjects with cognitive complaints. The non-invasive nature of the ASL-MRI method may play an important role in the monitoring and prognosis of post-COVID-19 subjects.
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Affiliation(s)
- Miloš Ajčević
- Department of Engineering and Architecture, University of Trieste, Trieste, Italy
| | - Katerina Iscra
- Department of Engineering and Architecture, University of Trieste, Trieste, Italy
| | - Giovanni Furlanis
- Clinical Unit of Neurology, Department of Medicine, Surgery and Health Sciences, Trieste University Hospital-ASUGI, University of Trieste, Trieste, Italy
| | - Marco Michelutti
- Clinical Unit of Neurology, Department of Medicine, Surgery and Health Sciences, Trieste University Hospital-ASUGI, University of Trieste, Trieste, Italy
| | | | - Alex Buoite Stella
- Clinical Unit of Neurology, Department of Medicine, Surgery and Health Sciences, Trieste University Hospital-ASUGI, University of Trieste, Trieste, Italy
| | - Maja Ukmar
- Radiology Unit, Department of Medicine, Surgery and Health Sciences, Trieste University Hospital-ASUGI, University of Trieste, Trieste, Italy
| | - Maria Assunta Cova
- Radiology Unit, Department of Medicine, Surgery and Health Sciences, Trieste University Hospital-ASUGI, University of Trieste, Trieste, Italy
| | - Agostino Accardo
- Department of Engineering and Architecture, University of Trieste, Trieste, Italy
| | - Paolo Manganotti
- Clinical Unit of Neurology, Department of Medicine, Surgery and Health Sciences, Trieste University Hospital-ASUGI, University of Trieste, Trieste, Italy.
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Vaz N, Franquet E, Heidari P, Chow DZ, Jacene HA, Ng TSC. COVID-19: Findings in nuclear medicine from head to toe. Clin Imaging 2023; 99:10-18. [PMID: 37043868 PMCID: PMC10081937 DOI: 10.1016/j.clinimag.2023.04.003] [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: 10/02/2022] [Accepted: 04/03/2023] [Indexed: 04/14/2023]
Abstract
COVID-19 is a multisystemic disease, and hence its potential manifestations on nuclear medicine imaging can extend beyond the lung. Therefore, it is important for the nuclear medicine physician to recognize these manifestations in the clinic. While FDG-PET/CT is not indicated routinely in COVID-19 evaluation, its unique capability to provide a functional and anatomical assessment of the entire body means that it can be a powerful tool to monitor acute, subacute, and long-term effects of COVID-19. Single-photon scintigraphy is routinely used to assess conditions such as pulmonary embolism, cardiac ischemia, and thyroiditis, and COVID-19 may present in these studies. The most common nuclear imaging finding of COVID-19 vaccination to date is hypermetabolic axillary lymphadenopathy. This may pose important diagnostic and management dilemmas in oncologic patients, particularly those with malignancies where the axilla constitutes a lymphatic drainage area. This article aims to summarize the relevant literature published since the beginning of the pandemic on the intersection between COVID-19 and nuclear medicine.
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Affiliation(s)
- Nuno Vaz
- Department of Radiology, Brigham and Women's Hospital, 75 Francis St, Boston, MA 02115, United States.
| | - Elisa Franquet
- Department of Radiology, Brigham and Women's Hospital, 75 Francis St, Boston, MA 02115, United States
| | - Pedram Heidari
- Department of Radiology, Massachusetts General Hospital, 55 Fruit St, Boston, MA 02114, United States
| | - David Z Chow
- Department of Radiology, Massachusetts General Hospital, 55 Fruit St, Boston, MA 02114, United States
| | - Heather A Jacene
- Department of Radiology, Brigham and Women's Hospital, 75 Francis St, Boston, MA 02115, United States
| | - Thomas S C Ng
- Department of Radiology, Massachusetts General Hospital, 55 Fruit St, Boston, MA 02114, United States
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27
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Lesoil C, Bombois S, Guinebretiere O, Houot M, Bahrami M, Levy M, Genthon R, Bozon F, Jean-Marie H, Epelbaum S, Foulon P, Villain N, Dubois B. Validation study of "Santé-Cerveau", a digital tool for early cognitive changes identification. Alzheimers Res Ther 2023; 15:70. [PMID: 37013590 PMCID: PMC10068729 DOI: 10.1186/s13195-023-01204-x] [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: 12/05/2022] [Accepted: 03/11/2023] [Indexed: 04/05/2023]
Abstract
BACKGROUND There is a need for a reliable, easy-to-use, widely available, and validated tool for timely cognitive impairment identification. We created a computerized cognitive screening tool (Santé-Cerveau digital tool (SCD-T)) including validated questionnaires and the following neuropsychological tests: 5 Word Test (5-WT) for episodic memory, Trail Making Test (TMT) for executive functions, and a number coding test (NCT) adapted from the Digit Symbol Substitution Test for global intellectual efficiency. This study aimed to evaluate the performance of SCD-T to identify cognitive deficit and to determine its usability. METHODS Three groups were constituted including 65 elderly Controls, 64 patients with neurodegenerative diseases (NDG): 50 AD and 14 non-AD, and 20 post-COVID-19 patients. The minimum MMSE score for inclusion was 20. Association between computerized SCD-T cognitive tests and their standard equivalent was assessed using Pearson's correlation coefficients. Two algorithms (a simple clinician-guided algorithm involving the 5-WT and the NCT; and a machine learning classifier based on 8 scores from the SCD-T tests extracted from a multiple logistic regression model, and data from the SCD-T questionnaires) were evaluated. The acceptability of SCD-T was investigated through a questionnaire and scale. RESULTS AD and non-AD participants were older (mean ± standard deviation (SD): 72.61 ± 6.79 vs 69.91 ± 4.86 years old, p = 0.011) and had a lower MMSE score (Mean difference estimate ± standard error: 1.74 ± 0.14, p < 0.001) than Controls; post-COVID-19 patients were younger than Controls (mean ± SD: 45.07 ± 11.36 years old, p < 0.001). All the computerized SCD-T cognitive tests were significantly associated with their reference version. In the pooled Controls and NDG group, the correlation coefficient was 0.84 for verbal memory, -0.60 for executive functions, and 0.72 for global intellectual efficiency. The clinician-guided algorithm demonstrated 94.4% ± 3.8% sensitivity and 80.5% ± 8.7% specificity, and the machine learning classifier 96.8% ± 3.9% sensitivity and 90.7% ± 5.8% specificity. The acceptability of SCD-T was good to excellent. CONCLUSIONS We demonstrate the high accuracy of SCD-T in screening cognitive disorders and its good acceptance even in individuals with prodromal and mild dementia stages. SCD-T would be useful in primary care to faster refer subjects with significant cognitive impairment (and limit unnecessary referrals) to specialized consultation, improve the AD care pathway and the pre-screening in clinical trials.
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Affiliation(s)
- Constance Lesoil
- Assistance Publique-Hôpitaux de Paris (AP-HP), Department of Neurology, Institute of Memory and Alzheimer's Disease (IM2A), Paris, France
| | - Stéphanie Bombois
- Assistance Publique-Hôpitaux de Paris (AP-HP), Department of Neurology, Institute of Memory and Alzheimer's Disease (IM2A), Paris, France
- INSERM U1171 - Degenerative and Vascular Cognitive Disorders, University of Lille, Lille, France
| | - Octave Guinebretiere
- Assistance Publique-Hôpitaux de Paris (AP-HP), Department of Neurology, Institute of Memory and Alzheimer's Disease (IM2A), Paris, France
| | - Marion Houot
- Assistance Publique-Hôpitaux de Paris (AP-HP), Department of Neurology, Institute of Memory and Alzheimer's Disease (IM2A), Paris, France
- Centre of Excellence of Neurodegenerative Disease (CoEN), AP-HP, Pitié-Salpêtrière, Institut du Cerveau - Paris Brain Institute - ICM, Paris, France
| | - Mahsa Bahrami
- Assistance Publique-Hôpitaux de Paris (AP-HP), Department of Neurology, Institute of Memory and Alzheimer's Disease (IM2A), Paris, France
| | - Marcel Levy
- Assistance Publique-Hôpitaux de Paris (AP-HP), Department of Neurology, Institute of Memory and Alzheimer's Disease (IM2A), Paris, France
| | - Rémy Genthon
- Assistance Publique-Hôpitaux de Paris (AP-HP), Department of Neurology, Institute of Memory and Alzheimer's Disease (IM2A), Paris, France
| | - Frédérique Bozon
- Assistance Publique-Hôpitaux de Paris (AP-HP), Department of Neurology, Institute of Memory and Alzheimer's Disease (IM2A), Paris, France
| | | | - Stéphane Epelbaum
- Assistance Publique-Hôpitaux de Paris (AP-HP), Department of Neurology, Institute of Memory and Alzheimer's Disease (IM2A), Paris, France
- Centre of Excellence of Neurodegenerative Disease (CoEN), AP-HP, Pitié-Salpêtrière, Institut du Cerveau - Paris Brain Institute - ICM, Paris, France
| | | | - Nicolas Villain
- Assistance Publique-Hôpitaux de Paris (AP-HP), Department of Neurology, Institute of Memory and Alzheimer's Disease (IM2A), Paris, France
- Centre of Excellence of Neurodegenerative Disease (CoEN), AP-HP, Pitié-Salpêtrière, Institut du Cerveau - Paris Brain Institute - ICM, Paris, France
- Sorbonne Université, INSERM U1127, CNRS 7225, Paris, France
| | - Bruno Dubois
- Assistance Publique-Hôpitaux de Paris (AP-HP), Department of Neurology, Institute of Memory and Alzheimer's Disease (IM2A), Paris, France.
- Centre of Excellence of Neurodegenerative Disease (CoEN), AP-HP, Pitié-Salpêtrière, Institut du Cerveau - Paris Brain Institute - ICM, Paris, France.
- Sorbonne Université, INSERM U1127, CNRS 7225, Paris, France.
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28
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Kim J, Young GS. Neuroimaging of COVID-19. Semin Neurol 2023; 43:205-218. [PMID: 37379850 DOI: 10.1055/s-0043-1767771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/30/2023]
Abstract
We review the wide variety of common neuroimaging manifestations related to coronavirus disease 2019 (COVID-19) and COVID therapies, grouping the entities by likely pathophysiology, recognizing that the etiology of many entities remains uncertain. Direct viral invasion likely contributes to olfactory bulb abnormalities. COVID meningoencephalitis may represent direct viral infection and/or autoimmune inflammation. Para-infectious inflammation and inflammatory demyelination at the time of infection are likely primary contributors to acute necrotizing encephalopathy, cytotoxic lesion of the corpus callosum, and diffuse white matter abnormality. Later postinfectious inflammation and demyelination may manifest as acute demyelinating encephalomyelitis, Guillain-Barré syndrome, or transverse myelitis. The hallmark vascular inflammation and coagulopathy of COVID-19 may produce acute ischemic infarction, microinfarction contributing to white matter abnormality, space-occupying hemorrhage or microhemorrhage, venous thrombosis, and posterior reversible encephalopathy syndrome. Adverse effects of therapies including zinc, chloroquine/hydroxychloroquine, antivirals, and vaccines, and current evidence regarding "long COVID" is briefly reviewed. Finally, we present a case of bacterial and fungal superinfection related to immune dysregulation from COVID.
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Affiliation(s)
- Jisoo Kim
- Division of Neuroradiology, Department of Radiology, Harvard Medical School & Brigham and Women's Hospital, Boston, Massachusetts
| | - Geoffrey S Young
- Division of Neuroradiology, Department of Radiology, Harvard Medical School & Brigham and Women's Hospital, Boston, Massachusetts
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29
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Ferrucci R, Cuffaro L, Capozza A, Rosci C, Maiorana N, Groppo E, Reitano MR, Poletti B, Ticozzi N, Tagliabue L, Silani V, Priori A. Brain positron emission tomography (PET) and cognitive abnormalities one year after COVID-19. J Neurol 2023; 270:1823-1834. [PMID: 36692636 PMCID: PMC9873215 DOI: 10.1007/s00415-022-11543-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 12/19/2022] [Accepted: 12/20/2022] [Indexed: 01/25/2023]
Abstract
Emerging evidence indicates that the etiologic agent responsible for coronavirus disease 2019 (COVID-19), can cause neurological complications. COVID-19 may induce cognitive impairment through multiple mechanisms. The aim of the present study was to describe the possible neuropsychological and metabolic neuroimaging consequences of COVID-19 12 months after patients' hospital discharge. We retrospectively recruited 7 patients (age [mean ± SD] = 56 years ± 12.39, 4 men) who had been hospitalized for COVID-19 with persistent neuropsychological deficits 12 months after hospital discharge. All patients underwent cognitive assessment and brain (18F-FDG) PET/CT, and one also underwent 18F-amyloid PET/CT. Of the seven patients studied, four had normal glucose metabolism in the brain. Three patients showed various brain hypometabolism patterns: (1) unilateral left temporal mesial area hypometabolism; (2) pontine involvement; and (3) bilateral prefrontal area abnormalities with asymmetric parietal impairment. The patient who showed the most widespread glucose hypometabolism in the brain underwent an 18F-amyloid PET/CT to assess the presence of Aβ plaques. This examination showed significant Aβ deposition in the superior and middle frontal cortex, and in the posterior cingulate cortex extending mildly in the rostral and caudal anterior cingulate areas. Although some other reports have already suggested that brain hypometabolism may be associated with cognitive impairment at shorter intervals from SarsCov-2 infection, our study is the first to assess cognitive functions, brain metabolic activity and in a patient also amyloid PET one year after COVID-19, demonstrating that cerebral effects of COVID-19 can largely outlast the acute phase of the disease and even be followed by amyloid deposition.
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Affiliation(s)
- Roberta Ferrucci
- Department of Health Science, Aldo Ravelli Research Center, University of Milan, Milan, Italy
- Neurology Unit, ASST-Santi Paolo e Carlo Hospital, Milan, Italy
| | - Luca Cuffaro
- Neurology Unit, ASST-Santi Paolo e Carlo Hospital, Milan, Italy
| | - Antonella Capozza
- Nuclear Medicine Unit, ASST-Santi Paolo e Carlo Hospital, Milan, Italy
| | - Chiara Rosci
- Neurology Unit, ASST-Santi Paolo e Carlo Hospital, Milan, Italy
| | - Natale Maiorana
- Department of Health Science, Aldo Ravelli Research Center, University of Milan, Milan, Italy
| | | | | | - Barbara Poletti
- Department of Neurology and Laboratory of Neuroscience, IRCCS Auxologico Institute, Milan, Italy
| | - Nicola Ticozzi
- Department of Neurology and Laboratory of Neuroscience, IRCCS Auxologico Institute, Milan, Italy
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Luca Tagliabue
- Nuclear Medicine Unit, ASST-Santi Paolo e Carlo Hospital, Milan, Italy
| | - Vincenzo Silani
- Department of Neurology and Laboratory of Neuroscience, IRCCS Auxologico Institute, Milan, Italy
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Alberto Priori
- Department of Health Science, Aldo Ravelli Research Center, University of Milan, Milan, Italy.
- Neurology Unit, ASST-Santi Paolo e Carlo Hospital, Milan, Italy.
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Zhu C, Zhang T, Li Q, Chen X, Wang K. Depression and Anxiety During the COVID-19 Pandemic: Epidemiology, Mechanism, and Treatment. Neurosci Bull 2023; 39:675-684. [PMID: 36411394 PMCID: PMC9685018 DOI: 10.1007/s12264-022-00970-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 08/12/2022] [Indexed: 11/23/2022] Open
Abstract
The Coronavirus Disease 2019 (COVID-19) pandemic has had an adverse impact on the physical and mental health of the public worldwide. In addition to illness in patients with COVID-19, isolated people and the general population have experienced mental health problems due to social distancing policies, mandatory lockdown, and other psychosocial factors, and the prevalence of depression and anxiety significantly increased during the pandemic. The purpose of this review is to elucidate the epidemiology, contributing factors, and pathogenesis of depression and anxiety. during the pandemic. These findings indicate that physicians and psychiatrists should pay more attention to and identify those with a high risk for mental problems, such as females, younger people, unmarried people, and those with a low educational level. In addition, researchers should focus on identifying the neural and neuroimmune mechanisms involved in depression and anxiety, and assess the intestinal microbiome to identify effective biomarkers. We also provide an overview of various intervention methods, including pharmacological treatment, psychological therapy, and physiotherapy, to provide a reference for different populations to guide the development of optimized intervention methods.
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Affiliation(s)
- Chunyan Zhu
- School of Mental Health and Psychological Sciences, Anhui Medical University, Hefei, 230032, China
- Anhui Province Key Laboratory of Cognition and Neuropsychiatric Disorders, Hefei, 230032, China
- Collaborative Innovation Center of Neuropsychiatric Disorders and Mental Health, Hefei, 230032, China
| | - Ting Zhang
- Department of Psychiatry, The First Affiliated Hospital of Anhui Medical University, Hefei, 230032, China
| | - Qianqian Li
- Department of Psychiatry, The First Affiliated Hospital of Anhui Medical University, Hefei, 230032, China
| | - Xingui Chen
- Department of Neurology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230032, China
| | - Kai Wang
- School of Mental Health and Psychological Sciences, Anhui Medical University, Hefei, 230032, China.
- Anhui Province Key Laboratory of Cognition and Neuropsychiatric Disorders, Hefei, 230032, China.
- Collaborative Innovation Center of Neuropsychiatric Disorders and Mental Health, Hefei, 230032, China.
- Department of Neurology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230032, China.
- Institute of Artificial Intelligence, Hefei Comprehensive National Science Center, Hefei, 230032, China.
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Georgousi K, Karageorgiou P, Tzaki M, Pachi I, Kyriazis I. Indirect Confirmation of a COVID-19 Encephalitis Case. Cureus 2023; 15:e36959. [PMID: 37131561 PMCID: PMC10149089 DOI: 10.7759/cureus.36959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/30/2023] [Indexed: 04/03/2023] Open
Abstract
A 58-year-old man was admitted to the hospital with acute neurological manifestations of encephalitis 15 days after a previous upper respiratory COVID-19 illness. On presentation, he was confused with altered mental status, aggressive behavior, and a Glasgow coma scale score of 10/15. Laboratory investigation, brain computed tomography (CT), and brain magnetic resonance imaging (MRI) were unremarkable with normal results. Although the cerebrospinal fluid (CSF) polymerase chain reaction (PCR) for SARS-CoV-2 was negative, we found increased concentrations of positive immunoglobulin (Ig) A and IgG antibodies in CSF, suggesting acute central nervous system (CNS) infection and indirect confirmation of virus neuroinvasion. There was no evidence of humoral auto-reactivity, and we rejected the hypothesis of autoimmune encephalitis with known autoantibodies. On the fifth day of hospitalization, myoclonic jerks emerged as a new neurological sign until the added levetiracetam led to total remission. The patient achieved full recovery after antiviral and corticosteroid therapy implementation of 10 days in the hospital. This case report emphasizes the importance of the presence of CSF IgA and IgG antibodies to diagnose encephalitis in COVID-19 patients as an indirect confirmation of CNS infection.
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Griffin MT, Werner TJ, Alavi A, Revheim ME. The value of FDG-PET/CT imaging in the assessment, monitoring, and management of COVID-19. EUROPEAN PHYSICAL JOURNAL PLUS 2023; 138:283. [PMID: 37008755 PMCID: PMC10040919 DOI: 10.1140/epjp/s13360-023-03797-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 02/11/2023] [Indexed: 06/19/2023]
Abstract
The pathogenesis of Coronavirus Disease 2019 (COVID-19) involves cytokine-driven recruitment and accumulation of inflammatory cells at sites of infection. These activated neutrophils, monocytes, and effector T cells are highly glycolytic and thus appear as [18]F-labeled fluorodeoxyglucose (FDG) avid sites on positron emission tomography (PET) imaging. FDG-PET-computed tomography (FDG-PET/CT) is a highly sensitive modality for the detection, monitoring, and assessing response related to COVID-19 disease activity that holds significant clinical relevance. To date, concerns over cost, access, and undue radiation exposure have limited the use of FDG-PET/CT in COVID-19 to a small number of individuals where PET-based interventions were already indicated. In this review, we summarize the existing literature on the use of FDG-PET in the detection and monitoring of COVID-19 with particular focus on several areas of clinical relevance that warrant future research: (1) incidental early detection of subclinical COVID-19 in patients who have undergone FDG-PET for other underlying diseases, (2) standardized quantitative assessment of COVID-19 disease burden at specific points in time, and (3) analysis of FDG-PET/CT data leading to better characterization of COVID-19 pathogenesis. Employing FDG-PET/CT for these purposes may allow for the earliest detection of COVID-19-associated venous thromboembolism (VTE), standardized monitoring of disease progression and response to treatment, and better characterization of the acute and chronic complications of this disease.
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Affiliation(s)
- Matthew T. Griffin
- Drexel University College of Medicine, Philadelphia, PA USA
- Department of Radiology, University of Pennsylvania, Philadelphia, PA USA
| | - Thomas J. Werner
- Department of Radiology, University of Pennsylvania, Philadelphia, PA USA
| | - Abass Alavi
- Department of Radiology, University of Pennsylvania, Philadelphia, PA USA
| | - Mona-Elisabeth Revheim
- Division of Radiology and Nuclear Medicine, Oslo University Hospital, Postbox 4950, 0424 Nydalen, Oslo, Norway
- Faculty of Medicine, Institute of Clinical Medicine, University of Oslo, Postbox 1078, 0316 Blindern, Oslo, Norway
- The Intervention Center, Division of Technology and Innovation, Oslo University Hospital, Postbox 4950, 0424 Oslo, Norway
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Huang P, Zhang LY, Tan YY, Chen SD. Links between COVID-19 and Parkinson's disease/Alzheimer's disease: reciprocal impacts, medical care strategies and underlying mechanisms. Transl Neurodegener 2023; 12:5. [PMID: 36717892 PMCID: PMC9885419 DOI: 10.1186/s40035-023-00337-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 01/12/2023] [Indexed: 01/31/2023] Open
Abstract
The impact of coronavirus disease 2019 (COVID-19) pandemic on patients with neurodegenerative diseases and the specific neurological manifestations of COVID-19 have aroused great interest. However, there are still many issues of concern to be clarified. Therefore, we review the current literature on the complex relationship between COVID-19 and neurodegenerative diseases with an emphasis on Parkinson's disease (PD) and Alzheimer's disease (AD). We summarize the impact of COVID-19 infection on symptom severity, disease progression, and mortality rate of PD and AD, and discuss whether COVID-19 infection could trigger PD and AD. In addition, the susceptibility to and the prognosis of COVID-19 in PD patients and AD patients are also included. In order to achieve better management of PD and AD patients, modifications of care strategies, specific drug therapies, and vaccines during the pandemic are also listed. At last, mechanisms underlying the link of COVID-19 with PD and AD are reviewed.
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Affiliation(s)
- Pei Huang
- grid.16821.3c0000 0004 0368 8293Department of Neurology and Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025 China
| | - Lin-Yuan Zhang
- grid.412478.c0000 0004 1760 4628Department of Neurology, Shanghai General Hospital, Shanghai, 200080 China
| | - Yu-Yan Tan
- Department of Neurology and Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
| | - Sheng-Di Chen
- Department of Neurology and Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China. .,Lab for Translational Research of Neurodegenerative Diseases, Shanghai Institute for Advanced Immunochemical Studies (SIAIS), Shanghai Tech University, Shanghai, 201210, China.
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Cognitive Deficits in the Acute Phase of COVID-19: A Review and Meta-Analysis. J Clin Med 2023; 12:jcm12030762. [PMID: 36769410 PMCID: PMC9917639 DOI: 10.3390/jcm12030762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 01/09/2023] [Accepted: 01/11/2023] [Indexed: 01/19/2023] Open
Abstract
This meta-analysis was conducted to quantify the risk of patients exhibiting cognitive deficits in the acute phase of COVID-19 at the time of the first variants (i.e., before the vaccine) and quantify the potential vulnerability of older patients and those who experienced more severe respiratory symptoms. To this end, we searched the LitCovid and EMBASE platforms for articles, including preprints, and included all studies (n = 48) that featured a measurement of cognition, which encompassed 2233 cases of COVID-19. Of these, 28 studies reported scores on global cognitive efficiency scales administered in the acute phase of COVID-19 (up to 3 months after infection). We were able to perform a meta-analysis of proportions on 24 articles (Npatients = 943), and a logistic regression on 18 articles (Npatients = 518). The meta-analysis for proportion indicated that 52.31% of patients with COVID-19 exhibited cognitive deficits in the acute phase. This high percentage, however, has to be interpreted taking in consideration the fact that the majority of patients were hospitalized, and some presented neurological complications, such as encephalopathy. A bootstrap procedure with random resampling revealed that an age of 59 was the threshold at which one would be more prone to present cognitive deficits. However, the severity of respiratory symptoms did not influence the scores on a global cognitive efficiency scale. Overall, our results indicated that neuropsychological deficits were a major consequence of the acute phase of the first forms of COVID-19.
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Abstract
COVID-19 illness is associated with diverse neurological manifestations. Its exceptionally high prevalence results from unprecedented genetic diversity, genomic recombination, and superspreading. With each new mutation and variant, there are foreseeable risks of rising fatality and novel neurological motor complications in childhood and adult cases. This chapter provides an extensive review of COVID-19 neurological illness, notably the motor manifestations. Innovative treatments have been developed to stem the spread of infectious contagious illness, and attenuate the resultant cytokine storm and other postinfectious immune aspects responsible for postacute COVID-19 syndrome due to the multiplier effect of infection, immunity, and inflammation, termed I3.
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Affiliation(s)
- David S Younger
- Department of Clinical Medicine and Neuroscience, CUNY School of Medicine, New York, NY, United States; Department of Medicine, Section of Internal Medicine and Neurology, White Plains Hospital, White Plains, NY, United States.
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Du Y, Zhao W, Huang S, Huang Y, Chen Y, Zhang H, Guo H, Liu J. Two-year follow-up of brain structural changes in patients who recovered from COVID-19: A prospective study. Psychiatry Res 2023; 319:114969. [PMID: 36462292 PMCID: PMC9684092 DOI: 10.1016/j.psychres.2022.114969] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 11/08/2022] [Accepted: 11/18/2022] [Indexed: 11/25/2022]
Abstract
The long-term effects of COVID-19 on brain structure remain unclear. A prospective study was conducted to explore the changes in brain structure in COVID-19 survivors at one and two years after discharge (COVID-19one, COVID-19two). The difference in gray matter volume (GMV) was analyzed using the voxel-based morphometry method, and correlation analyses were conducted. The dynamic changes in clinical sequelae varied. The GMVs in the cerebellum and vermis were reduced in COVID-19one and COVID-19two, positively correlated with lymphocyte count, and negatively correlated with neutrophil count, neutrophil/lymphocyte ratio (COVID-19one), and systemic immune-inflammation index (COVID-19two). The decreased GMVs in the left middle frontal gyrus, inferior frontal gyrus of the operculum, right middle temporal gyrus, and inferior temporal gyrus returned to normal in COVID-19two. The decreased GMV in the left frontal lobe was negatively correlated with the Athens Insomnia Scale (AIS). The GMV in the left temporal lobe was aggravated in COVID-19two and positively correlated with C-reactive protein. In conclusion, GMV recovery coexisted with injury, which was associated with AIS and inflammatory factors. This may shed some light on the dynamic changes in brain structure and the possible predictors that may be related to GMV changes in COVID-19two.
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Affiliation(s)
- Yanyao Du
- Department of Radiology, Second Xiangya Hospital of Central South University, Changsha, Hunan Province 410011, China
| | - Wei Zhao
- Department of Radiology, Second Xiangya Hospital of Central South University, Changsha, Hunan Province 410011, China; Clinical Research Center for Medical Imaging in Hunan Province, Changsha, Hunan 410011, China; Department of Radiology Quality Control Center, Changsha, Hunan Province 410011, China
| | - Sihong Huang
- Department of Radiology, Second Xiangya Hospital of Central South University, Changsha, Hunan Province 410011, China
| | - Yijie Huang
- Department of Radiology, Second Xiangya Hospital of Central South University, Changsha, Hunan Province 410011, China
| | - Yanjing Chen
- Department of Radiology, Second Xiangya Hospital of Central South University, Changsha, Hunan Province 410011, China
| | - Huiting Zhang
- MR Scientific Marketing, Siemens Healthineers Ltd., Wuhan 430000, China
| | - Hu Guo
- MR Application, Siemens Healthineers Ltd., Changsha 410011, China
| | - Jun Liu
- Department of Radiology, Second Xiangya Hospital of Central South University, Changsha, Hunan Province 410011, China; Clinical Research Center for Medical Imaging in Hunan Province, Changsha, Hunan 410011, China; Department of Radiology Quality Control Center, Changsha, Hunan Province 410011, China.
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Kero K, Halter CM, Moll AC, Hanna SM, Woodard JL, Giordani B, Daugherty AM, Kavcic V. Metacognition in Community-Dwelling Older Black and African American Adults During the COVID-19 Pandemic. J Alzheimers Dis 2023; 96:301-311. [PMID: 37742635 PMCID: PMC10757653 DOI: 10.3233/jad-221140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/26/2023]
Abstract
BACKGROUND Cognitive assessment of older adults typically includes symptom reports and objective evaluations. However, there is often poor agreement between these measures. Cultural norms, stress, and anxiety may also influence cognitive self-appraisal and performance. Little research describes how other factors affect the self-report/objective test discrepancies noted in the literature. OBJECTIVE This study investigated whether the disparity between subjective cognitive concerns and objective cognitive performance is related to measures of anxiety and stress in older Black and African American adults. METHODS Telephone screenings were administered to 206 older adults (ages 64-94) during the first year of the pandemic. Demographic data, objective memory (Telephone Interview for Cognitive Status [TICS-m]), an adaptation of the subjective memory measure, the Cognitive Change Questionnaire, emphasizing executive functioning in everyday life [CCQ-e]), Generalized Anxiety Disorder-7 (GAD-7), and Perceived Stress Scale-4 (PSS4) were measured. Metacognition Discrepancy Index (MDI) was calculated from the standardized residual after regressing TICS-m on CCQ-e scores to quantify the discrepancy between cognitive self-appraisal and objective cognitive functioning. RESULTS Neither GAD-7 nor PSS-4 moderated the relationship between TICS-m and CCQ-e, and TICS-m scores weakly predicted subjective CCQ-e scores (F(1, 197)=4.37, p = 0.038, R2 = 0.022). The MDI correlated with stress and anxiety (rs = 0.294, 0.396, ps < 0.001). CONCLUSION Discrepancies exist between objectively measured and self-evaluated cognition. Elevations in stress and anxiety are associated with greater overestimation of cognitive difficulties relative to objective performance. Pandemic-related stressors may have worsened anxiety and diminished self-appraisal of cognitive abilities for some individuals, while others may remain reluctant to acknowledge impairments. Social and emotional factors are meaningful considerations in assessing cognitive difficulties.
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Affiliation(s)
| | | | | | | | | | - Bruno Giordani
- Michigan Alzheimer’s Disease Research Center, Ann Arbor, MI, USA
- University of Michigan, Ann Arbor, MI, USA
| | | | - Voyko Kavcic
- Wayne State University, Detroit, MI, USA
- International Institute of Applied Gerontology, Ljubljana, Slovenia
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Herman B, Bruni A, Zain E, Dzulhadj A, Oo AC. Post-COVID depression and its multiple factors, does Favipiravir have a protective effect? A longitudinal study of indonesia COVID-19 patients. PLoS One 2022; 17:e0279184. [PMID: 36584099 PMCID: PMC9803217 DOI: 10.1371/journal.pone.0279184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 12/01/2022] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Coronavirus disease (COVID-19) not only has a long-term effect on its survivors, it also affects their quality of life, including inducing depression as a possible manifestation of central nervous system disruption. Favipiravir shows promising efficacy as an antiviral drug for the treatment of COVID-19. However, its effect on the sequelae of COVID-19 has not been explored. Therefore, this study aims to assess the impact of Favipiravir and address the factors associated with post-COVID depression in Indonesia. METHOD This cohort study conducted a post-COVID-19 survey on Indonesian patients who were diagnosed by using real-time polymerase chain reaction (RT-PCR) and antigen tests until January 2022. An online questionnaire was distributed to obtain information on demographics, comorbidities, health behavior, symptoms, and treatment. The propensity technique was used to allocate the participants into the favipiravir and nonrecipient groups (1:1). The Patient Health Questionnaire-9 (PHQ-9) was used for outcome measurement. The cohort was followed up biweekly for 60 days after onset/diagnosis to determine the occurrence of depression. Cox regression analysis with an adjusted odds ratio and 95% confidence interval was used to estimate the effect of favipiravir on post-COVID-19 depression. RESULTS The data included the information of 712 participants, of whom 18.54% had depression within 60 days after onset/diagnosis. Depression was higher in the nonrecipient group (21.06%) than in the favipiravir group (16.01%). After adjustment by other factors, favipiravir prescription was found to be associated with depression (aOR 0.488, 95% CI 0.339-0.701 p < 0.001). In accordance with the PHQ-9 subset, favipiravir exerted a significant protective effect against depressive mood and loss of interest. However, patients living alone were prone to experiencing loss of interest (aOR 2.253, 95% CI 1.329-3.818, p = 0.003). CONCLUSION The data obtained in this preliminary survey suggested that favipiravir may be useful for preventing post-COVID depression. However, further study is needed. Moreover, the provision of mental health support, particularly to those who live alone, must be ensured. TRIAL REGISTRATION Registry NCT05060562.
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Affiliation(s)
- Bumi Herman
- College of Public Health Science Chulalongkorn University Thailand, Bangkok, Thailand
- Faculty of Medicine, Hasanuddin University, Makassar, Indonesia
- * E-mail: (PV); (BH)
| | - Andrea Bruni
- Mental Health Officer, World Health Organization, Baghdad, Iraq
| | - Ekachaeryanti Zain
- Department of Psychiatry, Graduate School of Medicine, Niigata University, Niigata, Japan
- Department of Psychiatry, Faculty of Medicine, Mulawarman University, Samarinda, Indonesia
| | - Azhar Dzulhadj
- Faculty of Medicine, Hasanuddin University, Makassar, Indonesia
- School of Biomedical Science, The University of Western Australia, Perth, Australia
| | - Aye Chan Oo
- College of Public Health Science Chulalongkorn University Thailand, Bangkok, Thailand
| | - Viwattanakulvanid
- College of Public Health Science Chulalongkorn University Thailand, Bangkok, Thailand
- * E-mail: (PV); (BH)
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Cerebral Metabolic Rate of Glucose and Cognitive Tests in Long COVID Patients. Brain Sci 2022; 13:brainsci13010023. [PMID: 36672005 PMCID: PMC9856023 DOI: 10.3390/brainsci13010023] [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: 11/18/2022] [Revised: 12/18/2022] [Accepted: 12/20/2022] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Common long-term sequelae after COVID-19 include fatigue and cognitive impairment. Although symptoms interfere with daily living, the underlying pathology is largely unknown. Previous studies report relative hypometabolism in frontal, limbic and cerebellar regions suggesting focal brain involvement. We aimed to determine whether absolute hypometabolism was present and correlated to same day standardized neurocognitive testing. METHODS Fourteen patients included from a long COVID clinic had cognitive testing and quantitative dynamic [18F]FDG PET of the brain on the same day to correlate cognitive function to metabolic glucose rate. RESULTS We found no hypometabolism in frontal, limbic and cerebellar regions in cognitively impaired relative to cognitive intact patients. In contrast, the cognitive impaired patients showed higher cerebellar metabolism (p = 0.03), which correlated with more severe deficits in working memory and executive function (p = 0.03). CONCLUSIONS Hypermetabolism in the cerebellum may reflect inefficient brain processing and play a role in cognitive impairments after COVID-19.
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Shan D, Li S, Xu R, Nie G, Xie Y, Han J, Gao X, Zheng Y, Xu Z, Dai Z. Post-COVID-19 human memory impairment: A PRISMA-based systematic review of evidence from brain imaging studies. Front Aging Neurosci 2022; 14:1077384. [PMID: 36570532 PMCID: PMC9780393 DOI: 10.3389/fnagi.2022.1077384] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Accepted: 11/30/2022] [Indexed: 12/14/2022] Open
Abstract
Many people with coronavirus disease 2019 (COVID-19) report varying degrees of memory impairment. Neuroimaging techniques such as MRI and PET have been utilized to shed light on how COVID-19 affects brain function in humans, including memory dysfunction. In this PRISMA-based systematic review, we compared and summarized the current literature looking at the relationship between COVID-19-induced neuropathological changes by neuroimaging scans and memory symptoms experienced by patients who recovered from COVID-19. Overall, this review suggests a correlational trend between structural abnormalities (e.g., cortical atrophy and white matter hyperintensities) or functional abnormalities (e.g., hypometabolism) in a wide range of brain regions (particularly in the frontal, parietal and temporal regions) and memory impairments in COVID-19 survivors, although a causal relationship between them remains elusive in the absence of sufficient caution. Further longitudinal investigations, particularly controlled studies combined with correlational analyses, are needed to provide additional evidence.
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Affiliation(s)
- Dan Shan
- Department of Biobehavioral Sciences, Columbia University, New York, NY, United States
| | - Shaoyang Li
- Faculty of Science, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China
| | - Ruichen Xu
- Department of Integrative Biology, University of Wisconsin-Madison, Madison, WI, United States
| | - Glen Nie
- Department of Biological Science, Northeastern University, Boston, MA, United States
| | - Yangyiran Xie
- School of Medicine, Vanderbilt University, Nashville, TN, United States
| | - Junchu Han
- New York State Psychiatric Institute, Global Psychiatric Epidemiology Group, New York, NY, United States
| | - Xiaoyi Gao
- School of Medicine, Saint Louis University, St. Louis, MO, United States
| | - Yuandian Zheng
- Department of Biobehavioral Sciences, Columbia University, New York, NY, United States
| | - Zhen Xu
- Minhang Crosspoint Academy at Shanghai Wenqi Middle School, Shanghai, China
| | - Zhihao Dai
- School of Medicine, Royal College of Surgeons in Ireland, University of Medicine and Health Sciences, Dublin, Ireland
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41
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Kim WSH, Ji X, Roudaia E, Chen JJ, Gilboa A, Sekuler A, Gao F, Lin Z, Jegatheesan A, Masellis M, Goubran M, Rabin JS, Lam B, Cheng I, Fowler R, Heyn C, Black SE, Graham SJ, MacIntosh BJ. MRI Assessment of Cerebral Blood Flow in Nonhospitalized Adults Who Self-Isolated Due to COVID-19. J Magn Reson Imaging 2022. [PMID: 36472248 PMCID: PMC9877942 DOI: 10.1002/jmri.28555] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 11/22/2022] [Accepted: 11/23/2022] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Neurological symptoms associated with coronavirus disease 2019 (COVID-19), such as fatigue and smell/taste changes, persist beyond infection. However, little is known of brain physiology in the post-COVID-19 timeframe. PURPOSE To determine whether adults who experienced flu-like symptoms due to COVID-19 would exhibit cerebral blood flow (CBF) alterations in the weeks/months beyond infection, relative to controls who experienced flu-like symptoms but tested negative for COVID-19. STUDY TYPE Prospective observational. POPULATION A total of 39 adults who previously self-isolated at home due to COVID-19 (41.9 ± 12.6 years of age, 59% female, 116.5 ± 62.2 days since positive diagnosis) and 11 controls who experienced flu-like symptoms but had a negative COVID-19 diagnosis (41.5 ± 13.4 years of age, 55% female, 112.1 ± 59.5 since negative diagnosis). FIELD STRENGTH AND SEQUENCES A 3.0 T; T1-weighted magnetization-prepared rapid gradient and echo-planar turbo gradient-spin echo arterial spin labeling sequences. ASSESSMENT Arterial spin labeling was used to estimate CBF. A self-reported questionnaire assessed symptoms, including ongoing fatigue. CBF was compared between COVID-19 and control groups and between those with (n = 11) and without self-reported ongoing fatigue (n = 28) within the COVID-19 group. STATISTICAL TESTS Between-group and within-group comparisons of CBF were performed in a voxel-wise manner, controlling for age and sex, at a family-wise error rate of 0.05. RESULTS Relative to controls, the COVID-19 group exhibited significantly decreased CBF in subcortical regions including the thalamus, orbitofrontal cortex, and basal ganglia (maximum cluster size = 6012 voxels and maximum t-statistic = 5.21). Within the COVID-19 group, significant CBF differences in occipital and parietal regions were observed between those with and without self-reported on-going fatigue. DATA CONCLUSION These cross-sectional data revealed regional CBF decreases in the COVID-19 group, suggesting the relevance of brain physiology in the post-COVID-19 timeframe. This research may help elucidate the heterogeneous symptoms of the post-COVID-19 condition. EVIDENCE LEVEL 2. TECHNICAL EFFICACY Stage 3.
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Affiliation(s)
- William S H Kim
- Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada.,Hurvitz Brain Sciences Program, Sunnybrook Research Institute, Toronto, Ontario, Canada
| | - Xiang Ji
- LC Campbell Cognitive Neurology Research Group, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - Eugenie Roudaia
- Rotman Research Institute, Baycrest Academy for Research and Education, Toronto, Ontario, Canada
| | - J Jean Chen
- Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada.,Rotman Research Institute, Baycrest Academy for Research and Education, Toronto, Ontario, Canada.,Institute of Biomedical Engineering, University of Toronto, Toronto, Ontario, Canada
| | - Asaf Gilboa
- Rotman Research Institute, Baycrest Academy for Research and Education, Toronto, Ontario, Canada.,Department of Psychology, University of Toronto, Toronto, Ontario, Canada
| | - Allison Sekuler
- Rotman Research Institute, Baycrest Academy for Research and Education, Toronto, Ontario, Canada.,Department of Psychology, University of Toronto, Toronto, Ontario, Canada.,Department of Psychology, Neuroscience & Behaviour, McMaster University, Hamilton, Ontario, Canada
| | - Fuqiang Gao
- Hurvitz Brain Sciences Program, Sunnybrook Research Institute, Toronto, Ontario, Canada.,LC Campbell Cognitive Neurology Research Group, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - Zhongmin Lin
- Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada.,Physical Sciences Platform, Sunnybrook Research Institute, Toronto, Ontario, Canada
| | - Aravinthan Jegatheesan
- Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada.,Physical Sciences Platform, Sunnybrook Research Institute, Toronto, Ontario, Canada
| | - Mario Masellis
- Hurvitz Brain Sciences Program, Sunnybrook Research Institute, Toronto, Ontario, Canada.,LC Campbell Cognitive Neurology Research Group, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada.,Division of Neurology, Department of Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - Maged Goubran
- Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada.,Hurvitz Brain Sciences Program, Sunnybrook Research Institute, Toronto, Ontario, Canada.,Physical Sciences Platform, Sunnybrook Research Institute, Toronto, Ontario, Canada.,Harquail Centre for Neuromodulation, Sunnybrook Research Institute, Toronto, Ontario, Canada
| | - Jennifer S Rabin
- Division of Neurology, Department of Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada.,Harquail Centre for Neuromodulation, Sunnybrook Research Institute, Toronto, Ontario, Canada.,Rehabilitation Sciences Institute, University of Toronto, Toronto, Ontario, Canada
| | - Benjamin Lam
- Hurvitz Brain Sciences Program, Sunnybrook Research Institute, Toronto, Ontario, Canada.,LC Campbell Cognitive Neurology Research Group, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada.,Division of Neurology, Department of Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - Ivy Cheng
- Evaluative Clinical Sciences, Sunnybrook Research Institute, Toronto, Ontario, Canada.,Integrated Community Program, Sunnybrook Research Institute, Toronto, Ontario, Canada.,Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Robert Fowler
- Department of Medicine, University of Toronto, Toronto, Ontario, Canada.,Emergency & Critical Care Research Program, Sunnybrook Research Institute, Toronto, Ontario, Canada
| | - Chris Heyn
- Hurvitz Brain Sciences Program, Sunnybrook Research Institute, Toronto, Ontario, Canada.,Department of Medical Imaging, University of Toronto, Toronto, Ontario, Canada
| | - Sandra E Black
- Hurvitz Brain Sciences Program, Sunnybrook Research Institute, Toronto, Ontario, Canada.,LC Campbell Cognitive Neurology Research Group, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada.,Division of Neurology, Department of Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - Simon J Graham
- Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada.,Hurvitz Brain Sciences Program, Sunnybrook Research Institute, Toronto, Ontario, Canada.,Physical Sciences Platform, Sunnybrook Research Institute, Toronto, Ontario, Canada
| | - Bradley J MacIntosh
- Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada.,Hurvitz Brain Sciences Program, Sunnybrook Research Institute, Toronto, Ontario, Canada.,Physical Sciences Platform, Sunnybrook Research Institute, Toronto, Ontario, Canada.,Computational Radiology & Artificial Intelligence Unit, Division of Radiology and Nuclear Medicine, Oslo University Hospital, Oslo, Norway
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42
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Mavrikaki M, Lee JD, Solomon IH, Slack FJ. Severe COVID-19 is associated with molecular signatures of aging in the human brain. NATURE AGING 2022; 2:1130-1137. [PMID: 37118539 DOI: 10.1038/s43587-022-00321-w] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 10/25/2022] [Indexed: 04/30/2023]
Abstract
As coronavirus disease 2019 (COVID-19) and aging are both accompanied by cognitive decline, we hypothesized that COVID-19 might lead to molecular signatures similar to aging. We performed whole-transcriptome analysis of the frontal cortex, a critical area for cognitive function, in individuals with COVID-19, age-matched and sex-matched uninfected controls, and uninfected individuals with intensive care unit/ventilator treatment. Our findings indicate that COVID-19 is associated with molecular signatures of brain aging and emphasize the value of neurological follow-up in recovered individuals.
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Affiliation(s)
- Maria Mavrikaki
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA.
| | - Jonathan D Lee
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Isaac H Solomon
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Frank J Slack
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA.
- Harvard Medical School Initiative for RNA Medicine, Harvard Medical School, Boston, MA, USA.
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43
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Brola W, Wilski M. Neurological consequences of COVID-19. Pharmacol Rep 2022; 74:1208-1222. [PMID: 36180640 PMCID: PMC9524739 DOI: 10.1007/s43440-022-00424-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Revised: 09/22/2022] [Accepted: 09/25/2022] [Indexed: 12/13/2022]
Abstract
In December 2019, cases of pneumonia caused by infection with the previously unknown severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), leading to coronavirus disease 2019 (COVID-19), were identified. Typical manifestations of COVID-19 are fever, cough, fatigue and dyspnoea. Initially, it was thought that the mechanism of action of SARS-CoV-2 was only associated with respiratory tract invasion, but it was later revealed that the infection might involve many other organs and systems, including the central and peripheral nervous systems. Neurological complications associated with SARS-CoV-2 infection include encephalopathy, encephalitis, meningitis, acute disseminated encephalomyelitis (ADEM), ischaemic and haemorrhagic stroke and cerebral venous sinus thrombosis. In cases of peripheral nervous system involvement, smell and taste disorders, myopathy or the signs and symptoms of Guillain‒Barré syndrome are observed. The most common early neurological complications, particularly during the first year of the epidemic, were anosmia and taste disorders, which, according to some studies, occurred in over 80 percent of patients with COVID-19. The proportion of patients with serious neurological manifestations was small compared to the global number of patients, but the numbers of SARS-CoV-2 infections and critical patients increased substantially. The experience from 2 years of the pandemic has shown that approximately 13% of infected patients suffer from severe neurological complications. The relationship between SARS-CoV-2 and the nervous system is not only a cause of neurological complications in previously healthy individuals but also directly and indirectly affects the courses of many nervous system diseases.
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Affiliation(s)
- Waldemar Brola
- Collegium Medicum, Jan Kochanowski University, Al. IX Wieków Kielc 19, 25-317, Kielce, Poland.
| | - Maciej Wilski
- Department of Adapted Physical Activity, Poznań University of Physical Education, Poznan, Poland
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44
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Fricchione GL, Paul AB, Chemali Z, Kritzer MD. Case 34-2022: A 57-Year-Old Woman with Covid-19 and Delusions. N Engl J Med 2022; 387:1795-1803. [PMID: 36351271 PMCID: PMC9730912 DOI: 10.1056/nejmcpc2115857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Gregory L Fricchione
- From the Departments of Psychiatry (G.L.F., Z.C., M.D.K.), Radiology (A.B.P.), and Neurology (Z.C.), Massachusetts General Hospital, and the Departments of Psychiatry (G.L.F., Z.C., M.D.K.), Radiology (A.B.P.), and Neurology (Z.C.), Harvard Medical School - both in Boston
| | - Aaron B Paul
- From the Departments of Psychiatry (G.L.F., Z.C., M.D.K.), Radiology (A.B.P.), and Neurology (Z.C.), Massachusetts General Hospital, and the Departments of Psychiatry (G.L.F., Z.C., M.D.K.), Radiology (A.B.P.), and Neurology (Z.C.), Harvard Medical School - both in Boston
| | - Zeina Chemali
- From the Departments of Psychiatry (G.L.F., Z.C., M.D.K.), Radiology (A.B.P.), and Neurology (Z.C.), Massachusetts General Hospital, and the Departments of Psychiatry (G.L.F., Z.C., M.D.K.), Radiology (A.B.P.), and Neurology (Z.C.), Harvard Medical School - both in Boston
| | - Michael D Kritzer
- From the Departments of Psychiatry (G.L.F., Z.C., M.D.K.), Radiology (A.B.P.), and Neurology (Z.C.), Massachusetts General Hospital, and the Departments of Psychiatry (G.L.F., Z.C., M.D.K.), Radiology (A.B.P.), and Neurology (Z.C.), Harvard Medical School - both in Boston
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45
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Newhouse A, Kritzer MD, Eryilmaz H, Praschan N, Camprodon JA, Fricchione G, Chemali Z. Neurocircuitry Hypothesis and Clinical Experience in Treating Neuropsychiatric Symptoms of Postacute Sequelae of Severe Acute Respiratory Syndrome Coronavirus 2. J Acad Consult Liaison Psychiatry 2022; 63:619-627. [PMID: 36030055 PMCID: PMC9404079 DOI: 10.1016/j.jaclp.2022.08.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 07/26/2022] [Accepted: 08/04/2022] [Indexed: 12/15/2022]
Abstract
Persistent symptoms following COVID-19 infection have been termed postacute sequelae of severe acute respiratory syndrome coronavirus 2 infection. Many of these symptoms are neuropsychiatric, such as inattention, impaired memory, and executive dysfunction; these are often colloquially termed "brain fog". These symptoms are common and often persist long after the acute phase. The pattern of these deficits combined with laboratory, neuroimaging, electroencephalographic, and neuropsychological data suggest that these symptoms may be driven by direct and indirect damage to the frontal-subcortical neural networks. Here, we review this evidence, share our clinical experience at an academic medical center, and discuss potential treatment implications. While the exact etiology remains unknown, a neurocircuit-informed understanding of postacute sequelae of severe acute respiratory syndrome coronavirus 2 infection can help guide pharmacology, neuromodulation, and physical and psychological therapeutic approaches.
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Affiliation(s)
- Amy Newhouse
- Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Boston, MA; Department of Medicine, Massachusetts General Hospital, Boston, MA.
| | - Michael D Kritzer
- Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Boston, MA
| | - Hamdi Eryilmaz
- Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Boston, MA
| | - Nathan Praschan
- Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Boston, MA
| | - Joan A Camprodon
- Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Boston, MA; Department of Neurology, Massachusetts General Hospital and Harvard Medical School, Boston, MA
| | - Gregory Fricchione
- Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Boston, MA
| | - Zeina Chemali
- Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Boston, MA; Department of Neurology, Massachusetts General Hospital and Harvard Medical School, Boston, MA
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46
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Is SARS-CoV-2 a Risk Factor of Bipolar Disorder?-A Narrative Review. J Clin Med 2022; 11:jcm11206060. [PMID: 36294388 PMCID: PMC9604904 DOI: 10.3390/jcm11206060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 10/10/2022] [Accepted: 10/12/2022] [Indexed: 11/07/2022] Open
Abstract
For 2.5 years we have been facing the coronavirus disease (COVID-19) and its health, social and economic effects. One of its known consequences is the development of neuropsychiatric diseases such as anxiety and depression. However, reports of manic episodes related to COVID-19 have emerged. Mania is an integral part of the debilitating illness-bipolar disorder (BD). Due to its devastating effects, it is therefore important to establish whether SARS-CoV-2 infection is a causative agent of this severe mental disorder. In this narrative review, we discuss the similarities between the disorders caused by SARS-CoV-2 and those found in patients with BD, and we also try to answer the question of whether SARS-CoV-2 infection may be a risk factor for the development of this affective disorder. Our observation shows that disorders in COVID-19 showing the greatest similarity to those in BD are cytokine disorders, tryptophan metabolism, sleep disorders and structural changes in the central nervous system (CNS). These changes, especially intensified in severe infections, may be a trigger for the development of BD in particularly vulnerable people, e.g., with family history, or cause an acute episode in patients with a pre-existing BD.
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47
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Rau A, Schroeter N, Blazhenets G, Dressing A, Walter LI, Kellner E, Bormann T, Mast H, Wagner D, Urbach H, Weiller C, Meyer PT, Reisert M, Hosp JA. Widespread white matter oedema in subacute COVID-19 patients with neurological symptoms. Brain 2022; 145:3203-3213. [PMID: 35675908 PMCID: PMC9214163 DOI: 10.1093/brain/awac045] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 12/30/2021] [Accepted: 01/23/2022] [Indexed: 12/04/2022] Open
Abstract
While neuropathological examinations in patients who died from COVID-19 revealed inflammatory changes in cerebral white matter, cerebral MRI frequently fails to detect abnormalities even in the presence of neurological symptoms. Application of multi-compartment diffusion microstructure imaging (DMI), that detects even small volume shifts between the compartments (intra-axonal, extra-axonal and free water/CSF) of a white matter model, is a promising approach to overcome this discrepancy. In this monocentric prospective study, a cohort of 20 COVID-19 inpatients (57.3 ± 17.1 years) with neurological symptoms (e.g. delirium, cranial nerve palsies) and cognitive impairments measured by the Montreal Cognitive Assessment (MoCA test; 22.4 ± 4.9; 70% below the cut-off value <26/30 points) underwent DMI in the subacute stage of the disease (29.3 ± 14.8 days after positive PCR). A comparison of whole-brain white matter DMI parameters with a matched healthy control group (n = 35) revealed a volume shift from the intra- and extra-axonal space into the free water fraction (V-CSF). This widespread COVID-related V-CSF increase affected the entire supratentorial white matter with maxima in frontal and parietal regions. Streamline-wise comparisons between COVID-19 patients and controls further revealed a network of most affected white matter fibres connecting widespread cortical regions in all cerebral lobes. The magnitude of these white matter changes (V-CSF) was associated with cognitive impairment measured by the MoCA test (r = -0.64, P = 0.006) but not with olfactory performance (r = 0.29, P = 0.12). Furthermore, a non-significant trend for an association between V-CSF and interleukin-6 emerged (r = 0.48, P = 0.068), a prominent marker of the COVID-19 related inflammatory response. In 14/20 patients who also received cerebral 18F-FDG PET, V-CSF increase was associated with the expression of the previously defined COVID-19-related metabolic spatial covariance pattern (r = 0.57; P = 0.039). In addition, the frontoparietal-dominant pattern of neocortical glucose hypometabolism matched well to the frontal and parietal focus of V-CSF increase. In summary, DMI in subacute COVID-19 patients revealed widespread volume shifts compatible with vasogenic oedema, affecting various supratentorial white matter tracts. These changes were associated with cognitive impairment and COVID-19 related changes in 18F-FDG PET imaging.
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Affiliation(s)
- Alexander Rau
- Department of Neuroradiology, Medical Center – University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Nils Schroeter
- Department of Neurology and Clinical Neuroscience, Medical Center – University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Ganna Blazhenets
- Department of Nuclear Medicine, Medical Center – University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Andrea Dressing
- Department of Neurology and Clinical Neuroscience, Medical Center – University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
- Freiburg Brain Imaging Center, Medical Center – University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Lea I Walter
- Department of Neurology and Clinical Neuroscience, Medical Center – University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Elias Kellner
- Department of Medical Physics, Medical Center – University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Tobias Bormann
- Department of Neurology and Clinical Neuroscience, Medical Center – University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
- Freiburg Brain Imaging Center, Medical Center – University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Hansjörg Mast
- Department of Neuroradiology, Medical Center – University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Dirk Wagner
- Department of Internal Medicine, Medical Center – University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Horst Urbach
- Department of Neuroradiology, Medical Center – University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Cornelius Weiller
- Department of Neurology and Clinical Neuroscience, Medical Center – University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
- Freiburg Brain Imaging Center, Medical Center – University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Philipp T Meyer
- Department of Nuclear Medicine, Medical Center – University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Marco Reisert
- Department of Medical Physics, Medical Center – University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
- Department of Stereotactic and Functional Neurosurgery, Medical Center – University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Jonas A Hosp
- Department of Neurology and Clinical Neuroscience, Medical Center – University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
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48
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Jamoulle M, Kazeneza-Mugisha G, Zayane A. Follow-Up of a Cohort of Patients with Post-Acute COVID-19 Syndrome in a Belgian Family Practice. Viruses 2022; 14:2000. [PMID: 36146806 PMCID: PMC9505954 DOI: 10.3390/v14092000] [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: 04/19/2022] [Revised: 08/30/2022] [Accepted: 09/01/2022] [Indexed: 11/18/2022] Open
Abstract
Fifty-five patients who suffered from COVID-19, who were still very ill after several months, with extreme fatigue, effort exhaustion, brain fog, anomia, memory disorder, anosmia, dysgeusia, and other multi-systemic health problems have been followed in a family practice setting between May 2021 and July 2022. Data extracted from the medical records of the 55 patients (40 women), mean age 42.4 (12 to 79 years), and a qualitative study of 6 of them using a semi-open-ended questionnaire allowed to highlight the clinical picture described by WHO as post-acute COVID-19 syndrome (PACS) also known as long COVID. We used brain single-photon emission computed tomography (SPECT-CT) in thirty-two patients with a high severity index and a highly impaired functional status, demonstrating vascular encephalopathy in twenty nine patients and supporting the hypothesis of a persistent cerebral vascular flow disorder in post COVID-19 condition. The patients will benefit from the consortium COVID Human Genetic Effort (covidhge.com) to explore the genetic and immunological basis of their problem, as 23/55 cases don't have immunological certainty of a COVID-19 infection. There is no known verified treatment. Analyzing the data from the first 52 patients, three categories of patients emerged over time: 16 patients made a full recovery after 6-8 months, 15 patients were able to return to life and work after 12-18 months with some sequelae, both groups being considered cured. In the third group, 21 patients are still very ill and unable to resume their work and life after 18 months. The biopsychosocial consequences on patients' lives are severe and family doctors are left out in the cold. It is necessary to test the reproducibility of this description, conducted on a small number of patients. Nevertheless, identifying, monitoring and supporting these patients is a necessity in family medicine.
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Affiliation(s)
- Marc Jamoulle
- HEC Information Sciences, University of Liège, 4000 Liege, Belgium
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49
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Islam MA, Cavestro C, Alam SS, Kundu S, Kamal MA, Reza F. Encephalitis in Patients with COVID-19: A Systematic Evidence-Based Analysis. Cells 2022; 11:cells11162575. [PMID: 36010650 PMCID: PMC9406394 DOI: 10.3390/cells11162575] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 08/11/2022] [Accepted: 08/16/2022] [Indexed: 11/26/2022] Open
Abstract
Although severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) predominantly infects the respiratory system, several investigations have shown the involvement of the central nervous system (CNS) along the course of the illness, with encephalitis being one of the symptoms. The objective of this systematic review was to evaluate the characteristics (clinical, neuro-radiological aspects, and laboratory features) and outcomes of encephalitis in COVID-19 patients. PubMed, Scopus, and Google Scholar databases were searched from 1 December 2019 until 21 July 2022 to identify case reports and case series published on COVID-19 associated with encephalitis. The quality of the included studies was assessed by the Joanna Briggs Institute critical appraisal checklists. This systematic review included 79 studies, including 91 COVID-19 patients (52.7% male) experiencing encephalitis, where 85.6% were adults (49.3 ± 20.2 years), and 14.4% were children (11.2 ± 7.6 years). RT-PCR was used to confirm 92.2% of the COVID-19 patients. Encephalitis-related symptoms were present in 78.0% of COVID-19 patients at the time of diagnosis. In these encephalitis patients, seizure (29.5%), confusion (23.2%), headache (20.5%), disorientation (15.2%), and altered mental status (11.6%) were the most frequently reported neurologic manifestations. Looking at the MRI, EEG, and CSF findings, 77.6%, 75.5%, and 64.1% of the patients represented abnormal results. SARS-CoV-2-associated or -mediated encephalitis were the most common type observed (59.3%), followed by autoimmune encephalitis (18.7%). Among the included patients, 66.7% were discharged (37.8% improved and 28.9% fully recovered), whereas 20.0% of the reported COVID-19-positive encephalitis patients died. Based on the quality assessment, 87.4% of the studies were of high quality. Although in COVID-19, encephalitis is not a typical phenomenon, SARS-CoV-2 seems like a neuropathogen affecting the brain even when there are no signs of respiratory illness, causing a high rate of disability and fatality.
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Affiliation(s)
- Md Asiful Islam
- Department of Haematology, School of Medical Sciences, Universiti Sains Malaysia, Kota Bharu 16150, Malaysia
- Institute of Metabolism and Systems Research, University of Birmingham, Birmingham B15 2TT, UK
| | - Cinzia Cavestro
- Headache Centre, Department of Neurology, San Lazzaro Hospital, ASL CN2, 12051 Alba, CN, Italy
| | - Sayeda Sadia Alam
- Department of Biochemistry and Molecular Biology, Jahangirnagar University, Savar, Dhaka 1342, Bangladesh
| | - Shoumik Kundu
- Department of Biochemistry and Molecular Biology, Jahangirnagar University, Savar, Dhaka 1342, Bangladesh
| | - Mohammad Amjad Kamal
- Institutes for Systems Genetics, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu 610064, China
- King Fahd Medical Research Center, King Abdulaziz University, Jeddah 22230, Saudi Arabia
- Department of Pharmacy, Faculty of Allied Health Sciences, Daffodil International University, Dhaka 1207, Bangladesh
- Enzymoics, 7 Peterlee Place, Novel Global Community Educational Foundation, Hebersham, NSW 2770, Australia
| | - Faruque Reza
- Department of Neurosciences, School of Medical Sciences, Universiti Sains Malaysia, Kota Bharu 16150, Kelantan, Malaysia
- Correspondence:
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50
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Cocciolillo F, Di Giuda D, Morello R, De Rose C, Valentini P, Buonsenso D. Orbito-Frontal Cortex Hypometabolism in Children With Post-COVID Condition (Long COVID): A Preliminary Experience. Pediatr Infect Dis J 2022; 41:663-665. [PMID: 35839175 PMCID: PMC9281418 DOI: 10.1097/inf.0000000000003578] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/18/2022] [Indexed: 01/18/2023]
Abstract
We describe 3 children with new-onset neurocognitive problems after coronavirus disease 2019 (COVID-19), that showed, at the brain [18F]-fluorodeoxyglucose positron emission tomography/computed tomography, hypometabolism in the left orbito-frontal region. The voxel-wise analysis confirmed a cluster of hypometabolic voxels in this region with a peak at -18/46/-4mm (179 voxels, T-Score 8.1). These findings may explain neurocognitive symptoms that some children develop after COVID-19 and require further investigations.
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Affiliation(s)
- Fabrizio Cocciolillo
- From the Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, UOC di Medicina Nucleare, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
| | - Daniela Di Giuda
- From the Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, UOC di Medicina Nucleare, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
- Istituto di Medicina Nucleare, Università Cattolica del Sacro Cuore, Roma, Italia
| | - Rosa Morello
- Department of Woman and Child Health and Public Health, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy and
| | - Cristina De Rose
- Department of Woman and Child Health and Public Health, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy and
| | - Piero Valentini
- Department of Woman and Child Health and Public Health, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy and
| | - Danilo Buonsenso
- Department of Woman and Child Health and Public Health, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy and
- Global Health Research Institute, Istituto di Igiene, Università Cattolica del Sacro Cuore, Roma, Italy
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