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JOURNAL ARTICLE
Hannah Preßler, Marie-Luise Machule, Friederike Ufer, Isabel Bünger, Lucie Yuanting Li, Emilie Buchholz, Claudia Werner, Esther Beraha, Frank Wagner, Matthes Metz, Susen Burock, Lisa Bruckert, Christiana Franke, Nicola Wilck, Anne Krüger, Alexander Reshetnik, Kai-Uwe Eckardt, Matthias Endres, Harald Prüss
BACKGROUND: Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a severely debilitating condition which markedly restricts activity and function of affected people. Since the beginning of the COVID-19 pandemic ME/CFS related to post-acute COVID-19 syndrome (PACS) can be diagnosed in a subset of patients presenting with persistent fatigue 6 months after a mostly mild SARS-CoV-2 infection by fulfillment of the Canadian Consensus Criteria (CCC 2003). Induction of autoimmunity after viral infection is a mechanism under intensive investigation...
March 7, 2024: Trials
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JOURNAL ARTICLE
Brian Walitt, Komudi Singh, Samuel R LaMunion, Mark Hallett, Steve Jacobson, Kong Chen, Yoshimi Enose-Akahata, Richard Apps, Jennifer J Barb, Patrick Bedard, Robert J Brychta, Ashura Williams Buckley, Peter D Burbelo, Brice Calco, Brianna Cathay, Li Chen, Snigdha Chigurupati, Jinguo Chen, Foo Cheung, Lisa M K Chin, Benjamin W Coleman, Amber B Courville, Madeleine S Deming, Bart Drinkard, Li Rebekah Feng, Luigi Ferrucci, Scott A Gabel, Angelique Gavin, David S Goldstein, Shahin Hassanzadeh, Sean C Horan, Silvina G Horovitz, Kory R Johnson, Anita Jones Govan, Kristine M Knutson, Joy D Kreskow, Mark Levin, Jonathan J Lyons, Nicholas Madian, Nasir Malik, Andrew L Mammen, John A McCulloch, Patrick M McGurrin, Joshua D Milner, Ruin Moaddel, Geoffrey A Mueller, Amrita Mukherjee, Sandra Muñoz-Braceras, Gina Norato, Katherine Pak, Iago Pinal-Fernandez, Traian Popa, Lauren B Reoma, Michael N Sack, Farinaz Safavi, Leorey N Saligan, Brian A Sellers, Stephen Sinclair, Bryan Smith, Joseph Snow, Stacey Solin, Barbara J Stussman, Giorgio Trinchieri, Sara A Turner, C Stephenie Vetter, Felipe Vial, Carlotta Vizioli, Ashley Williams, Shanna B Yang, Avindra Nath
Post-infectious myalgic encephalomyelitis/chronic fatigue syndrome (PI-ME/CFS) is a disabling disorder, yet the clinical phenotype is poorly defined, the pathophysiology is unknown, and no disease-modifying treatments are available. We used rigorous criteria to recruit PI-ME/CFS participants with matched controls to conduct deep phenotyping. Among the many physical and cognitive complaints, one defining feature of PI-ME/CFS was an alteration of effort preference, rather than physical or central fatigue, due to dysfunction of integrative brain regions potentially associated with central catechol pathway dysregulation, with consequences on autonomic functioning and physical conditioning...
February 21, 2024: Nature Communications
#3
JOURNAL ARTICLE
Anna Gil, George E Hoag, John P Salerno, Mady Hornig, Nancy Klimas, Liisa K Selin
BACKGROUND: Patients with post-acute sequelae of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) infection (PASC, i.e., Long COVID) have a symptom complex highly analogous to many features of myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS), suggesting they may share some aspects of pathogenesis in these similar disorders. ME/CFS is a complex disease affecting numerous organ systems and biological processes and is often preceded by an infection-like episode. It is postulated that the chronic manifestations of illness may result from an altered host response to infection or inability to resolve inflammation, as is being reported in Long COVID...
March 2024: Brain, behavior, & immunity health
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JOURNAL ARTICLE
André Fonseca, Mateusz Szysz, Hoang Thien Ly, Clara Cordeiro, Nuno Sepúlveda
Background and Objectives: The diagnosis and pathology of myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) remain under debate. However, there is a growing body of evidence for an autoimmune component in ME/CFS caused by the Epstein-Barr virus (EBV) and other viral infections. Materials and Methods: In this work, we analyzed a large public dataset on the IgG antibodies to 3054 EBV peptides to understand whether these immune responses could help diagnose patients and trigger pathological autoimmunity; we used healthy controls (HCs) as a comparator cohort...
January 15, 2024: Medicina
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JOURNAL ARTICLE
Elisa Stein, Cornelia Heindrich, Kirsten Wittke, Claudia Kedor, Laura Kim, Helma Freitag, Anne Krüger, Markus Tölle, Carmen Scheibenbogen
There is increasing evidence for an autoimmune aetiology in post-infectious Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS). SARS-CoV-2 has now become the main trigger for ME/CFS. We have already conducted two small proof-of-concept studies on IgG depletion by immunoadsorption (IA) in post-infectious ME/CFS, which showed efficacy in most patients. This observational study aims to evaluate the efficacy of IA in patients with post-COVID-19 ME/CFS. The primary objective was to assess the improvement in functional ability...
October 9, 2023: Journal of Clinical Medicine
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JOURNAL ARTICLE
Melanie Uhde, Alyssa C Indart, Peter H R Green, Robert H Yolken, Dane B Cook, Sanjay K Shukla, Suzanne D Vernon, Armin Alaedini
The etiology and mechanism of myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) are poorly understood and no biomarkers have been established. Specifically, the relationship between the immunologic, metabolic, and gastrointestinal abnormalities associated with ME/CFS and their relevance to established symptoms of the condition remain unclear. Relying on data from two independent pairs of ME/CFS and control cohorts, one at rest and one undergoing an exercise challenge, we identify a state of suppressed acute-phase innate immune response to microbial translocation in conjunction with a compromised gut epithelium in ME/CFS...
July 2023: Brain, behavior, & immunity health
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JOURNAL ARTICLE
Santa Rasa-Dzelzkaleja, Angelika Krumina, Svetlana Capenko, Zaiga Nora-Krukle, Sabine Gravelsina, Anda Vilmane, Lauma Ievina, Yehuda Shoenfeld, Modra Murovska
BACKGROUND: Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a multifactorial disease with an unexplained aetiology in which viral infections are possible trigger factors. The aim of this study was to determine the involvement of human herpesvirus (HHV)-6A/B, HHV-7, and parvovirus B19 (B19V) in the etiopathogenesis of ME/CFS. METHODS: 200 patients with clinically diagnosed ME/CFS and 150 apparently healthy individuals were enrolled in this study. Single-round, nested, and quantitative real-time polymerase chain reactions (PCR) were used to detect the presence and load of HHV-6A/B, HHV-7, and B19V...
January 18, 2023: Journal of Translational Medicine
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JOURNAL ARTICLE
Zheng Wang, Michelle F Waldman, Tara J Basavanhally, Aviva R Jacobs, Gonzalo Lopez, Regis Y Perichon, Johnny J Ma, Elyse M Mackenzie, James B Healy, Yixin Wang, Sarah A Hersey
BACKGROUND: Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS) is a debilitating condition that can lead to severe impairment of physical, psychological, cognitive, social, and occupational functions. The cause of ME/CFS remains incompletely understood. There is no clinical diagnostic test for ME/CFS. Although many therapies have been used off-label to manage symptoms of ME/CFS, there are limited, if any, specific therapies or cure for ME/CFS. In this study, we investigated the expression of genes specific to key immune functions, and viral infection status in ME/CFS patients with an aim of identifying biomarkers for characterization and/or treatment of the disease...
October 25, 2022: Journal of Translational Medicine
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REVIEW
Douglas B Kell, Etheresia Pretorius
Ischaemia-reperfusion (I-R) injury, initiated via bursts of reactive oxygen species produced during the reoxygenation phase following hypoxia, is well known in a variety of acute circumstances. We argue here that I-R injury also underpins elements of the pathology of a variety of chronic, inflammatory diseases, including rheumatoid arthritis, ME/CFS and, our chief focus and most proximally, Long COVID. Ischaemia may be initiated via fibrin amyloid microclot blockage of capillaries, for instance as exercise is started; reperfusion is a necessary corollary when it finishes...
August 31, 2022: Biochemical Journal
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JOURNAL ARTICLE
Marthe Ueland, Riad Hajdarevic, Olav Mella, Elin B Strand, Daisy D Sosa, Ola D Saugstad, Øystein Fluge, Benedicte A Lie, Marte K Viken
Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a disease with a variety of symptoms such as post-exertional malaise, fatigue, and pain, but where aetiology and pathogenesis are unknown. An increasing number of studies have implicated the involvement of the immune system in ME/CFS. Furthermore, a hereditary component is suggested by the reported increased risk for disease in relatives, and genetic association studies are being performed to identify potential risk variants. We recently reported an association with the immunologically important human leucocyte antigen (HLA) genes HLA-C and HLA-DQB1 in ME/CFS...
July 11, 2022: Translational Psychiatry
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REVIEW
Michael Maes, Marta Kubera, Magdalena Kotańska
There is evidence that chronic fatigue spectrum disorders (CFAS-Ds), including myalgic encephalomyelitis (ME), chronic fatigue syndrome (CFS), and chronic fatigue with physiosomatic symptoms including when due to comorbid medical disease, are characterized by neuroimmune and neuro-oxidative biomarkers. This study was performed to delineate the protein-protein interaction (PPI) network of CFAS-D and to discover the pathways, molecular patterns, and domains enriched in their PPI network. We performed network, enrichment, and annotation analyses using differentially expressed proteins and metabolics, which were established in patients with CFAS-D...
2022: Frontiers in Psychiatry
#12
JOURNAL ARTICLE
Brandon S Cox, Khaled Alharshawi, Irene Mena-Palomo, William P Lafuse, Maria E Ariza
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS) is a chronic, debilitating multisystem illness of unknown etiology for which there is no cure and no diagnostic tests available. Despite increasing evidence implicating EBV and human herpesvirus-6A (HHV-6A) as potential causative infectious agents in a subset of ME/CFS patients, there are few mechanistic studies to address a causal relationship. In this study we examined a large ME/CFS cohort (n=351) and 77 controls and demonstrate a significant increase in activin A and IL-21serum levels, which correlated with seropositivity for antibodies to the EBV and HHV-6 protein deoxyuridine-triphosphate nucleotidohydrolase (dUTPase), but not CXCL13...
April 28, 2022: JCI Insight
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JOURNAL ARTICLE
Hector Bonilla, Dylan Hampton, Erika G Marques de Menezes, Xutao Deng, José G Montoya, Jill Anderson, Philip J Norris
Myalgic encephalomyelitis, or chronic fatigue syndrome (ME/CFS) is a serious disease whose cause has yet to be identified. Objective markers of the disease are also not well understood and would serve as important tools in diagnosis and management. One potential biomarker or transmitter of immune signals in ME/CFS is the extracellular vesicle (EV) compartment. These small, membrane bound particles have been shown to play a key role in intercellular signaling. Our laboratory has focused on methods of detection of EVS in clinical samples...
2022: Frontiers in Immunology
#14
JOURNAL ARTICLE
María B Monzón-Nomdedeu, Karl J Morten, Elisa Oltra
BACKGROUND: Fibromyalgia (FM) and myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) are devastating metabolic neuroimmune diseases that are difficult to diagnose because of the presence of numerous symptoms and a lack of specific biomarkers. Despite patient heterogeneity linked to patient subgroups and variation in disease severity, anomalies are found in the blood and plasma of these patients when compared with healthy control groups. The seeming specificity of these "plasma factors", as recently reported by Ron Davis and his group at Stanford University, CA, United States, and observations by our group, have led to the proposal that induced pluripotent stem cells (iPSCs) may be used as metabolic sensors for FM and ME/CFS, a hypothesis that is the basis for this in-depth review...
August 26, 2021: World Journal of Stem Cells
#15
JOURNAL ARTICLE
Gottfried R S Treviranus
Unresolved infectious psycho-neuro-endocrino-inflammation (PNEI) denotes an area of tragically accelerated interest because of SARS-CoV-2`s capacity to meddle with the immune responses in a stage-wise fashion. Its pandemic, interacting with antecedent further deteriorating health and living conditions, takes a direct toll of million human lives. In order to withstand the plethora of slowly or never easing ailments labeled "Post-acute Sequelae of Covid-19 (PASC)" a comprehensive understanding from the intrusions up to its emerging aftermaths is paramount...
September 2021: Psychiatria Danubina
#16
JOURNAL ARTICLE
Riad Hajdarevic, Asgeir Lande, Ingrid Rekeland, Anne Rydland, Elin B Strand, Daisy D Sosa, Lisa E Creary, Olav Mella, Torstein Egeland, Ola D Saugstad, Øystein Fluge, Benedicte A Lie, Marte K Viken
The etiology of myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS) is unknown, but involvement of the immune system is one of the proposed underlying mechanisms. Human leukocyte antigen (HLA) associations are hallmarks of immune-mediated and autoimmune diseases. We have previously performed high resolution HLA genotyping and detected associations between ME/CFS and certain HLA class I and class II alleles. However, the HLA complex harbors numerous genes of immunological importance, and there is extensive and complex linkage disequilibrium across the region...
November 2021: Brain, Behavior, and Immunity
#17
REVIEW
Amy D Proal, Michael B VanElzakker
The novel virus severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has caused a pandemic of coronavirus disease 2019 (COVID-19). Across the globe, a subset of patients who sustain an acute SARS-CoV-2 infection are developing a wide range of persistent symptoms that do not resolve over the course of many months. These patients are being given the diagnosis Long COVID or Post-acute sequelae of COVID-19 (PASC). It is likely that individual patients with a PASC diagnosis have different underlying biological factors driving their symptoms, none of which are mutually exclusive...
2021: Frontiers in Microbiology
#18
JOURNAL ARTICLE
Wakiro Sato, Hirohiko Ono, Takaji Matsutani, Masakazu Nakamura, Isu Shin, Keiko Amano, Ryuji Suzuki, Takashi Yamamura
Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a debilitating condition characterized by fatigue and post-exertional malaise, accompanied by various signs of neurological and autonomic dysfunction. ME/CFS is often triggered by an infectious episode and associated with an aberrant immune system. Here we report that ME/CFS is a disorder characterized by skewed B cell receptor gene usage. By applying a next-generation sequencing to determine the clone-based IGHV/IGHD/IGHJ repertoires, we revealed a biased usage of several IGHV genes in peripheral blood B cells from ME/CFS patients...
July 2021: Brain, Behavior, and Immunity
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JOURNAL ARTICLE
Milica Milivojevic, Xiaoyu Che, Lucinda Bateman, Aaron Cheng, Benjamin A Garcia, Mady Hornig, Manuel Huber, Nancy G Klimas, Bohyun Lee, Hyoungjoo Lee, Susan Levine, Jose G Montoya, Daniel L Peterson, Anthony L Komaroff, W Ian Lipkin
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS) is an unexplained chronic, debilitating illness characterized by fatigue, sleep disturbances, cognitive dysfunction, orthostatic intolerance and gastrointestinal problems. Using ultra performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS), we analyzed the plasma proteomes of 39 ME/CFS patients and 41 healthy controls. Logistic regression models, with both linear and quadratic terms of the protein levels as independent variables, revealed a significant association between ME/CFS and the immunoglobulin heavy variable (IGHV) region 3-23/30...
2020: PloS One
#20
JOURNAL ARTICLE
Sophie Steiner, Sonya C Becker, Jelka Hartwig, Franziska Sotzny, Sebastian Lorenz, Sandra Bauer, Madlen Löbel, Anna B Stittrich, Patricia Grabowski, Carmen Scheibenbogen
Single nucleotide polymorphisms (SNP) in various genes have been described to be associated with susceptibility to autoimmune disease. In this study, myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) patients and controls were genotyped for five immune gene SNPs in tyrosine phosphatase non-receptor type 22 ( PTPN22 , rs2476601), cytotoxic T-lymphocyte-associated protein 4 ( CTLA4 , rs3087243), tumor necrosis factor ( TNF , rs1800629 and rs1799724), and interferon regulatory factor 5 ( IRF5 , rs3807306), which are among the most important risk variants for autoimmune diseases...
2020: Frontiers in Immunology
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