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  1. Article ; Online: Long COVID and chronic COVID syndromes.

    Halpin, Stephen / O'Connor, Rory / Sivan, Manoj

    Journal of medical virology

    2020  Volume 93, Issue 3, Page(s) 1242–1243

    MeSH term(s) COVID-19/complications ; COVID-19/epidemiology ; COVID-19/physiopathology ; COVID-19/virology ; Cohort Studies ; Comorbidity ; Hospitalization/statistics & numerical data ; Humans ; SARS-CoV-2/pathogenicity ; United Kingdom
    Keywords covid19
    Language English
    Publishing date 2020-10-30
    Publishing country United States
    Document type Letter
    ZDB-ID 752392-0
    ISSN 1096-9071 ; 0146-6615
    ISSN (online) 1096-9071
    ISSN 0146-6615
    DOI 10.1002/jmv.26587
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  3. Article ; Online: Long COVID and chronic COVID syndromes

    Halpin, S / O'Connor, R / Sivan, M

    2020  

    Abstract: ... more comorbidities than groups whose primary COVID‐19 infection was mild and managed in the community. ... We thank Dr Garg and colleagues for their interest in our work and their useful comments.1 We agree ... that our cohort of hospitalised patients is correspondingly older, more likely to have had severe disease and have ...

    Abstract We thank Dr Garg and colleagues for their interest in our work and their useful comments.1 We agree that our cohort of hospitalised patients is correspondingly older, more likely to have had severe disease and have more comorbidities than groups whose primary COVID‐19 infection was mild and managed in the community.
    Keywords covid19
    Publishing date 2020-10-09
    Publisher Wiley
    Publishing country uk
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  4. Article ; Online: Long COVID-19 and Myalgic Encephalomyelitis/Chronic Fatigue Syndrome: Correspondence.

    Mungmunpuntipantip, Rujittika / Wiwanitkit, Viroj

    Reumatologia clinica

    2023  Volume 19, Issue 2, Page(s) 119

    MeSH term(s) Humans ; Fatigue Syndrome, Chronic/diagnosis ; Post-Acute COVID-19 Syndrome ; COVID-19
    Language English
    Publishing date 2023-02-02
    Publishing country Spain
    Document type Letter
    ISSN 2173-5743
    ISSN (online) 2173-5743
    DOI 10.1016/j.reumae.2022.07.001
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  5. Article ; Online: How to understand the overlap of long COVID, chronic fatigue syndrome/myalgic encephalomyelitis, fibromyalgia and irritable bowel syndromes.

    Goldenberg, Don L

    Seminars in arthritis and rheumatism

    2024  Volume 67, Page(s) 152455

    Abstract: ... in long COVID has revealed similar findings to those noted in CFS/ME and FM, characterized ... by central nervous system organ dysfunction. Long COVID, like CFS/ME, FM and IBS, is best understood as a bidirectional mind ... to chronic fatigue syndrome/myalgic encephalomyelitis (CFS/ME), fibromyalgia (FM) and irritable bowel syndrome (IBS). Research ...

    Abstract Long COVID should be limited to patients with multiple, persistent symptoms not related to well-defined organ damage. Once redefined, a focused review of long COVID demonstrates striking similarity to chronic fatigue syndrome/myalgic encephalomyelitis (CFS/ME), fibromyalgia (FM) and irritable bowel syndrome (IBS). Research in long COVID has revealed similar findings to those noted in CFS/ME and FM, characterized by central nervous system organ dysfunction. Long COVID, like CFS/ME, FM and IBS, is best understood as a bidirectional mind-body, neuroimmune illness.
    Language English
    Publishing date 2024-05-07
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 120247-9
    ISSN 1532-866X ; 0049-0172
    ISSN (online) 1532-866X
    ISSN 0049-0172
    DOI 10.1016/j.semarthrit.2024.152455
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  6. Article ; Online: Metabolomic and immune alterations in long COVID patients with chronic fatigue syndrome.

    Saito, Suguru / Shahbaz, Shima / Luo, Xian / Osman, Mohammed / Redmond, Desiree / Cohen Tervaert, Jan Willem / Li, Liang / Elahi, Shokrollah

    Frontiers in immunology

    2024  Volume 15, Page(s) 1341843

    Abstract: ... recovered individuals (R) without LC, acute COVID-19 patients (A), and to SARS-CoV-2 unexposed healthy ... patients have symptoms similar to myalgic encephalomyelitis or chronic fatigue syndrome (ME/CFS ... as long COVID (LC), that may last months or years post the onset of acute disease. A portion of LC ...

    Abstract Introduction: A group of SARS-CoV-2 infected individuals present lingering symptoms, defined as long COVID (LC), that may last months or years post the onset of acute disease. A portion of LC patients have symptoms similar to myalgic encephalomyelitis or chronic fatigue syndrome (ME/CFS), which results in a substantial reduction in their quality of life. A better understanding of the pathophysiology of LC, in particular, ME/CFS is urgently needed.
    Methods: We identified and studied metabolites and soluble biomarkers in plasma from LC individuals mainly exhibiting ME/CFS compared to age-sex-matched recovered individuals (R) without LC, acute COVID-19 patients (A), and to SARS-CoV-2 unexposed healthy individuals (HC).
    Results: Through these analyses, we identified alterations in several metabolomic pathways in LC vs other groups. Plasma metabolomics analysis showed that LC differed from the R and HC groups. Of note, the R group also exhibited a different metabolomic profile than HC. Moreover, we observed a significant elevation in the plasma pro-inflammatory biomarkers (e.g. IL-1α, IL-6, TNF-α, Flt-1, and sCD14) but the reduction in ATP in LC patients. Our results demonstrate that LC patients exhibit persistent metabolomic abnormalities 12 months after the acute COVID-19 disease. Of note, such metabolomic alterations can be observed in the R group 12 months after the acute disease. Hence, the metabolomic recovery period for infected individuals with SARS-CoV-2 might be long-lasting. In particular, we found a significant reduction in sarcosine and serine concentrations in LC patients, which was inversely correlated with depression, anxiety, and cognitive dysfunction scores.
    Conclusion: Our study findings provide a comprehensive metabolomic knowledge base and other soluble biomarkers for a better understanding of the pathophysiology of LC and suggests sarcosine and serine supplementations might have potential therapeutic implications in LC patients. Finally, our study reveals that LC disproportionally affects females more than males, as evidenced by nearly 70% of our LC patients being female.
    MeSH term(s) Male ; Humans ; Female ; Fatigue Syndrome, Chronic ; Post-Acute COVID-19 Syndrome ; Acute Disease ; Quality of Life ; Sarcosine ; SARS-CoV-2 ; COVID-19 ; Biomarkers ; Serine
    Chemical Substances Sarcosine (Z711V88R5F) ; Biomarkers ; Serine (452VLY9402)
    Language English
    Publishing date 2024-01-18
    Publishing country Switzerland
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2606827-8
    ISSN 1664-3224 ; 1664-3224
    ISSN (online) 1664-3224
    ISSN 1664-3224
    DOI 10.3389/fimmu.2024.1341843
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  7. Article ; Online: Gastrointestinal and Hepatobiliary Symptoms and Disorders with Long (Chronic) COVID Infection.

    Rizvi, Anam / Ziv, Yonatan / Crawford, James M / Trindade, Arvind J

    Gastroenterology clinics of North America

    2023  Volume 52, Issue 1, Page(s) 139–156

    Abstract: ... preventative measures, potential therapies, and health care and economic impact of long COVID syndrome ... Long COVID is a novel syndrome characterizing new or persistent symptoms weeks after COVID-19 ... hepatobiliary sequelae of long COVID syndrome. It describes potential biomolecular mechanisms, prevalence ...

    Abstract Long COVID is a novel syndrome characterizing new or persistent symptoms weeks after COVID-19 infection and involving multiple organ systems. This review summarizes the gastrointestinal and hepatobiliary sequelae of long COVID syndrome. It describes potential biomolecular mechanisms, prevalence, preventative measures, potential therapies, and health care and economic impact of long COVID syndrome, particularly of its gastrointestinal (GI) and hepatobiliary manifestations.
    MeSH term(s) Humans ; COVID-19 ; Post-Acute COVID-19 Syndrome ; Disease Progression
    Language English
    Publishing date 2023-02-20
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 92114-2
    ISSN 1558-1942 ; 0889-8553
    ISSN (online) 1558-1942
    ISSN 0889-8553
    DOI 10.1016/j.gtc.2022.09.002
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  8. Article ; Online: Diverse immunological dysregulation, chronic inflammation, and impaired erythropoiesis in long COVID patients with chronic fatigue syndrome.

    Saito, Suguru / Shahbaz, Shima / Osman, Mohammed / Redmond, Desiree / Bozorgmehr, Najmeh / Rosychuk, Rhonda J / Lam, Grace / Sligl, Wendy / Cohen Tervaert, Jan Willem / Elahi, Shokrollah

    Journal of autoimmunity

    2024  Volume 147, Page(s) 103267

    Abstract: ... chronic fatigue syndrome (ME/CFS). We specifically identified and studied ME/CFS patients from two independent LC cohorts ... lingering symptoms, often referred to as long COVID (LC). However, a subset of these patients exhibits ... at least 12 months post the onset of acute disease, and compared them to the recovered group (R). ME/CFS ...

    Abstract A substantial number of patients recovering from acute SARS-CoV-2 infection present serious lingering symptoms, often referred to as long COVID (LC). However, a subset of these patients exhibits the most debilitating symptoms characterized by ongoing myalgic encephalomyelitis or chronic fatigue syndrome (ME/CFS). We specifically identified and studied ME/CFS patients from two independent LC cohorts, at least 12 months post the onset of acute disease, and compared them to the recovered group (R). ME/CFS patients had relatively increased neutrophils and monocytes but reduced lymphocytes. Selective T cell exhaustion with reduced naïve but increased terminal effector T cells was observed in these patients. LC was associated with elevated levels of plasma pro-inflammatory cytokines, chemokines, Galectin-9 (Gal-9), and artemin (ARTN). A defined threshold of Gal-9 and ARTN concentrations had a strong association with LC. The expansion of immunosuppressive CD71
    Language English
    Publishing date 2024-05-25
    Publishing country England
    Document type Journal Article
    ZDB-ID 639452-8
    ISSN 1095-9157 ; 0896-8411
    ISSN (online) 1095-9157
    ISSN 0896-8411
    DOI 10.1016/j.jaut.2024.103267
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  9. Article ; Online: Long covid and myalgic encephalomyelitis/chronic fatigue syndrome are overlapping conditions.

    McKeever, Vikki

    BMJ (Clinical research ed.)

    2024  Volume 384, Page(s) q613

    MeSH term(s) Humans ; Fatigue Syndrome, Chronic/diagnosis ; Fatigue Syndrome, Chronic/epidemiology ; Fatigue Syndrome, Chronic/therapy ; Post-Acute COVID-19 Syndrome ; COVID-19
    Language English
    Publishing date 2024-03-18
    Publishing country England
    Document type Letter ; Comment
    ZDB-ID 1362901-3
    ISSN 1756-1833 ; 0959-8154 ; 0959-8146 ; 0959-8138 ; 0959-535X ; 1759-2151
    ISSN (online) 1756-1833
    ISSN 0959-8154 ; 0959-8146 ; 0959-8138 ; 0959-535X ; 1759-2151
    DOI 10.1136/bmj.q613
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  10. Article ; Online: A systematic review of quantitative EEG findings in Fibromyalgia, Chronic Fatigue Syndrome and Long COVID.

    Silva-Passadouro, Bárbara / Tamasauskas, Arnas / Khoja, Omar / Casson, Alexander J / Delis, Ioannis / Brown, Christopher / Sivan, Manoj

    Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology

    2024  Volume 163, Page(s) 209–222

    Abstract: Fibromyalgia Syndrome (FMS), Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS) and Long ... COVID (LC) are similar multisymptom clinical syndromes but with difference in dominant symptoms ... in each individual. There is existing and emerging literature on possible functional alterations ...

    Abstract Fibromyalgia Syndrome (FMS), Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS) and Long COVID (LC) are similar multisymptom clinical syndromes but with difference in dominant symptoms in each individual. There is existing and emerging literature on possible functional alterations of the central nervous system in these conditions. This review aims to synthesise and appraise the literature on resting-state quantitative EEG (qEEG) in FMS, ME/CFS and LC, drawing on previous research on FMS and ME/CFS to help understand neuropathophysiology of the new condition LC. A systematic search of MEDLINE, Embase, CINHAL, PsycINFO and Web of Science databases for articles published between December 1994 and September 2023 was performed. Out of the initial 2510 studies identified, 17 articles were retrieved that met all the predetermined selection criteria, particularly of assessing qEEG changes in one of the three conditions compared to healthy controls. All studies scored moderate to high quality on the Newcastle-Ottawa scale. There was a general trend for decreased low-frequency EEG band activity (delta, theta, and alpha) and increased high-frequency EEG beta activity in FMS, differing to that found in ME/CFS. The limited LC studies included in this review focused mainly on cognitive impairments and showed mixed findings not consistent with patterns observed in FMS and ME/CFS. Our findings suggest different patterns of qEEG brainwave activity in FMS and ME/CFS. Further research is required to explore whether there are phenotypes within LC that have EEG signatures similar to FMS or ME/CFS. This could inform identification of reliable diagnostic markers and possible targets for neuromodulation therapies tailored to each clinical syndrome.
    Language English
    Publishing date 2024-05-06
    Publishing country Netherlands
    Document type Journal Article ; Review
    ZDB-ID 1463630-x
    ISSN 1872-8952 ; 0921-884X ; 1388-2457
    ISSN (online) 1872-8952
    ISSN 0921-884X ; 1388-2457
    DOI 10.1016/j.clinph.2024.04.019
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