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Glette M, Stiles TC, Woodhouse A, Nilsen TIL, Landmark T. Chronic fatigue in the general population: Prevalence, natural course and associations with chronic pain (the HUNT pain study). Eur J Pain 2024. [PMID: 38940382 DOI: 10.1002/ejp.2307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 06/10/2024] [Accepted: 06/12/2024] [Indexed: 06/29/2024]
Abstract
BACKGROUND Fatigue and pain are both prevalent and frequently co-occur. No standard measure of fatigue exists, but most definitions include a continuum between high levels of energy and fatigue. There is limited knowledge about the course of fatigue in the general population and its association with functioning and other health outcomes. Our main aim was to identify trajectories of energy and fatigue in the general population and to investigate whether chronic pain is related to a negative prognosis of chronic fatigue. METHODS Longitudinal latent class analysis was performed to classify 4771 individuals into trajectory groups based on five quarterly repeated measures. RESULTS A five-cluster solution was identified: 'much energy' (n = 1471, [31%]), 'varying energy' (n = 1445, [30%]), 'some energy' (n = 921, [19%]), 'low energy' [chronic moderate fatigue] (n = 852, [18%]) and 'no energy' [chronic severe fatigue] (n = 82, [2%]). Individuals with chronic moderate fatigue who reported chronic pain had reduced probability of improvement over the following 3 years (OR = 0.67, 95% CI [0.52, 0.88]). CONCLUSIONS Chronic fatigue is highly prevalent in the general population and a small proportion have chronic severe fatigue. When chronic pain co-occurs with chronic fatigue, improvement of chronic fatigue is less likely, indicating that these symptoms may perpetuate each other. SIGNIFICANCE STATEMENT Understanding the close relationship between chronic pain and chronic fatigue is important as they both contribute to suffering and loss of functioning, may be related to the same underlying diseases, or in the absence of disease, may share common mechanisms. This study highlights the important role of chronic pain in relation to chronic fatigue, both by showing a strong association between the prevalence of the two conditions, and by showing that chronic pain is associated with a negative prognosis of chronic fatigue.
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Affiliation(s)
- Mari Glette
- Department of Circulation and Medical Imaging, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, Trondheim, Norway
- Department of Anesthesiology and Intensive Care Medicine, St. Olav's University Hospital, Trondheim, Norway
| | - Tore Charles Stiles
- Department of Psychology, Faculty of Social and Educational Sciences, Norwegian University of Science and Technology, Trondheim, Norway
| | - Astrid Woodhouse
- Department of Circulation and Medical Imaging, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, Trondheim, Norway
- Department of Anesthesiology and Intensive Care Medicine, St. Olav's University Hospital, Trondheim, Norway
| | - Tom Ivar Lund Nilsen
- Department of Public Health and Nursing, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, Trondheim, Norway
| | - Tormod Landmark
- Department of Circulation and Medical Imaging, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, Trondheim, Norway
- Department of Anesthesiology and Intensive Care Medicine, St. Olav's University Hospital, Trondheim, Norway
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Skjevling L, Goll R, Hanssen HM, Johnsen PH. Faecal microbiota transplantation (FMT) in Norwegian outpatients with mild to severe myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS): protocol for a 12-month randomised double-blind placebo-controlled trial. BMJ Open 2024; 14:e073275. [PMID: 38858151 PMCID: PMC11168185 DOI: 10.1136/bmjopen-2023-073275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 03/11/2024] [Indexed: 06/12/2024] Open
Abstract
INTRODUCTION The observed alteration of the intestinal microbiota in patients with myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) and the effect of transferring a healthy gut flora from a faecal donor using a faecal microbiota transplantation (FMT) will be explored in this trial. METHODS AND ANALYSIS This is a protocol for a randomised, double-blind, placebo-controlled, parallel-group, single-centre trial, with 12 months follow-up. 80 participants will be included and randomised (1:1:2) to either donor FMT (from two different donors) or placebo (autologous FMT). Participants will be included by the International Clinical Criteria for ME/CFS. The clinical measures of ME/CFS and disease activity include Modified DePaul Questionnaire, Fatigue Severity Scale (FSS), Hospital Anxiety and Depression Scale (HADS), 36-Item Short Form Health Survey (SF-36), ROMA IV criteria, Food Frequency Questionnaire, Repeatable Battery for the Assessment of Neuropsychological Status, heart rate variability testing and reports on the use of antibiotics and food supplements, as well as biobanking of blood, urine and faeces.The primary endpoint is proportion with treatment success in FSS score in donor versus autologous FMT group 3 months after treatment. Treatment success is defined as an FSS improvement of more than 1.2 points from baseline at 3 months after treatment. Adverse events will be registered throughout the study. ETHICS AND DISSEMINATION The Regional Committee for Medical Research Ethics Northern Norway has approved the study. The study has commenced in May 2019. Findings will be disseminated in international peer-reviewed journal(s), submitted to relevant conferences, and trial participants will be informed via phone calls. TRIAL REGISTRATION NUMBER NCT03691987.
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Affiliation(s)
- Linn Skjevling
- UiT The Arctic University of Norway, Tromso, Troms, Norway
- Medical Department, University Hospital of North Norway, Harstad, Troms, Norway
| | - Rasmus Goll
- UiT The Arctic University of Norway, Tromso, Troms, Norway
- Department of Gastroenterology, University Hospital of North Norway, Tromso, Troms, Norway
| | - Hege Marie Hanssen
- UiT The Arctic University of Norway, Tromso, Troms, Norway
- Medical Department, University Hospital of North Norway, Harstad, Troms, Norway
| | - Peter Holger Johnsen
- UiT The Arctic University of Norway, Tromso, Troms, Norway
- Medical Department, University Hospital of North Norway, Harstad, Troms, Norway
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Gramont B, Goutte J, Féasson L, Millet G, Hupin D, Cathébras P. [Chronic fatigue: What investigations? And what for?]. Rev Med Interne 2023; 44:662-669. [PMID: 37248110 DOI: 10.1016/j.revmed.2023.05.007] [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: 04/25/2023] [Accepted: 05/15/2023] [Indexed: 05/31/2023]
Abstract
Chronic fatigue is a frequent complaint, expressed at all levels of the healthcare system. It is perceived as disabling in a high proportion of cases, and internists are frequently called upon to find "the" cause. The etiological diagnostic approach of an unexplained state of fatigue relies on the careful search for more specific clues by questioning and clinical examination. It is necessary to recognize the limited place of complementary examinations apart from the basic biological parameters. Simple rating scales can be useful in the etiological and differential diagnosis of fatigue. Chronic fatigue syndrome (CFS), in the current state of knowledge, cannot be considered as a specific pathological entity distinct from idiopathic chronic fatigue states, and does not have validated biomarkers. It is important to know that a state of chronic asthenia often results from several intricated etiological factors (biological, psychological and social), to be classified as predisposing, precipitating and perpetuating. The metabolic and cardiorespiratory exercise test has a major place in the assessment and management of fatigue, as a prerequisite for personalized retraining or adapted physical activity (APA), which are the treatments of choice for chronic fatigue.
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Affiliation(s)
- B Gramont
- Service de médecine interne, CHU de Saint-Étienne, hôpital Nord, Saint-Étienne, France.
| | - J Goutte
- Service de médecine interne, CHU de Saint-Étienne, hôpital Nord, Saint-Étienne, France
| | - L Féasson
- Service de physiologie clinique et de l'exercice, IRMIS, CHU de Saint-Étienne, université Jean-Monnet, Saint-Étienne, France
| | - G Millet
- STAPS, IRMIS, université Jean-Monnet, Saint-Étienne, France
| | - D Hupin
- Service de physiologie clinique et de l'exercice, IRMIS, CHU de Saint-Étienne, université Jean-Monnet, Saint-Étienne, France
| | - P Cathébras
- Service de médecine interne, CHU de Saint-Étienne, hôpital Nord, Saint-Étienne, France
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Zhao T, Cox IA, Ahmad H, Campbell JA, Hensher M, Palmer AJ, Kelly RM, Rogerson MJ, Wills K, de Graaff B. The economic burden of myalgic encephalomyelitis/chronic fatigue syndrome in Australia. AUST HEALTH REV 2023; 47:707-715. [PMID: 38011828 DOI: 10.1071/ah23106] [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: 07/13/2023] [Accepted: 11/07/2023] [Indexed: 11/29/2023]
Abstract
Objective This study aimed to estimate costs of myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) to patients, government and Australian society. Methods Australian ME/CFS patients and their carers were recruited using convenience sampling. Patients completed an online retrospective cost diary, providing ME/CFS-related direct medical, non-medical and indirect costs. Informal care costs were collected directly from carers. Data from the Pharmaceutical Benefits Scheme and Medicare Benefits Schedule were linked to participant survey data. Annual per patient and total societal costs were estimated, broken down by category and presented in 2021 AUD. Factors associated with higher costs were investigated using generalised linear models. Results One hundred and seventy five patients (mean age 49 years s.d. 14, 79.4% female) completed the cost diary. Estimated total annual societal costs of ME/CFS in Australia ranged between $1.38 and $10.09 billion, with average annual total costs of $63 400/patient. Three-quarters of these costs were due to indirect costs ($46 731). Disability severity was the key factor associated with higher costs, particularly for indirect costs (being 2.27-fold higher for severe disability than no/mild disability). Conclusions ME/CFS poses a significant economic burden in Australia, owing mainly to high indirect and informal care costs.
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Affiliation(s)
- Ting Zhao
- Menzies Institute for Medical Research, University of Tasmania, Medical Science 1 Building, 17 Liverpool Street, Hobart, Tas. 7000, Australia
| | - Ingrid A Cox
- Menzies Institute for Medical Research, University of Tasmania, Medical Science 1 Building, 17 Liverpool Street, Hobart, Tas. 7000, Australia
| | - Hasnat Ahmad
- Menzies Institute for Medical Research, University of Tasmania, Medical Science 1 Building, 17 Liverpool Street, Hobart, Tas. 7000, Australia
| | - Julie A Campbell
- Menzies Institute for Medical Research, University of Tasmania, Medical Science 1 Building, 17 Liverpool Street, Hobart, Tas. 7000, Australia
| | - Martin Hensher
- Menzies Institute for Medical Research, University of Tasmania, Medical Science 1 Building, 17 Liverpool Street, Hobart, Tas. 7000, Australia
| | - Andrew J Palmer
- Menzies Institute for Medical Research, University of Tasmania, Medical Science 1 Building, 17 Liverpool Street, Hobart, Tas. 7000, Australia
| | - Ryan M Kelly
- School of Computing and Information Systems, University of Melbourne, Melbourne, Vic., Australia
| | - Melissa J Rogerson
- School of Computing and Information Systems, University of Melbourne, Melbourne, Vic., Australia
| | - Karen Wills
- Menzies Institute for Medical Research, University of Tasmania, Medical Science 1 Building, 17 Liverpool Street, Hobart, Tas. 7000, Australia
| | - Barbara de Graaff
- Menzies Institute for Medical Research, University of Tasmania, Medical Science 1 Building, 17 Liverpool Street, Hobart, Tas. 7000, Australia
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Chang H, Kuo CF, Yu TS, Ke LY, Hung CL, Tsai SY. Increased risk of chronic fatigue syndrome following infection: a 17-year population-based cohort study. J Transl Med 2023; 21:804. [PMID: 37951920 PMCID: PMC10638797 DOI: 10.1186/s12967-023-04636-z] [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: 08/23/2023] [Accepted: 10/16/2023] [Indexed: 11/14/2023] Open
Abstract
BACKGROUND Previous serological studies have indicated an association between viruses and atypical pathogens and Chronic Fatigue Syndrome (CFS). This study aims to investigate the correlation between infections from common pathogens, including typical bacteria, and the subsequent risk of developing CFS. The analysis is based on data from Taiwan's National Health Insurance Research Database. METHODS From 2000 to 2017, we included a total of 395,811 cases aged 20 years or older newly diagnosed with infection. The cases were matched 1:1 with controls using a propensity score and were followed up until diagnoses of CFS were made. RESULTS The Cox proportional hazards regression analysis was used to estimate the relationship between infection and the subsequent risk of CFS. The incidence density rates among non-infection and infection population were 3.67 and 5.40 per 1000 person-years, respectively (adjusted hazard ratio [HR] = 1.5, with a 95% confidence interval [CI] 1.47-1.54). Patients infected with Varicella-zoster virus, Mycobacterium tuberculosis, Escherichia coli, Candida, Salmonella, Staphylococcus aureus and influenza virus had a significantly higher risk of CFS than those without these pathogens (p < 0.05). Patients taking doxycycline, azithromycin, moxifloxacin, levofloxacin, or ciprofloxacin had a significantly lower risk of CFS than patients in the corresponding control group (p < 0.05). CONCLUSION Our population-based retrospective cohort study found that infection with common pathogens, including bacteria, viruses, is associated with an increased risk of developing CFS.
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Affiliation(s)
- Hsun Chang
- Division of Infectious Diseases, Department of Internal Medicine, MacKay Memorial Hospital, Taipei, Taiwan
| | - Chien-Feng Kuo
- Division of Infectious Diseases, Department of Internal Medicine, MacKay Memorial Hospital, Taipei, Taiwan
- Department of Medicine, MacKay Medical College, New Taipei City, 252, Taiwan
- Department of Health Policy and Management, Johns Hopkins Bloomberg School of Public Health, Johns Hopkins University, 615 N. Wolfe Street, Baltimore, MD, 21205, USA
| | - Teng-Shun Yu
- Management Office for Health Data, China Medical University Hospital, Taichung, Taiwan
- Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Liang-Yin Ke
- Medical Laboratory Science & Biotechnology, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chung-Lieh Hung
- Division of Cardiology, Departments of Internal Medicine, MacKay Memorial Hospital, Taipei, Taiwan
- Institute of Biomedical Sciences, MacKay Medical College, New Taipei City, Taiwan
| | - Shin-Yi Tsai
- Department of Medicine, MacKay Medical College, New Taipei City, 252, Taiwan.
- Department of Health Policy and Management, Johns Hopkins Bloomberg School of Public Health, Johns Hopkins University, 615 N. Wolfe Street, Baltimore, MD, 21205, USA.
- Institute of Biomedical Sciences, MacKay Medical College, New Taipei City, Taiwan.
- Department of Laboratory Medicine, MacKay Memorial Hospital, Taipei, 104, Taiwan.
- Institute of Long-Term Care, MacKay Medical College, New Taipei City, Taiwan.
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Casson S, Jones MD, Cassar J, Kwai N, Lloyd AR, Barry BK, Sandler CX. The effectiveness of activity pacing interventions for people with chronic fatigue syndrome: a systematic review and meta-analysis. Disabil Rehabil 2023; 45:3788-3802. [PMID: 36345726 DOI: 10.1080/09638288.2022.2135776] [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: 05/13/2022] [Revised: 09/29/2022] [Accepted: 10/09/2022] [Indexed: 11/10/2022]
Abstract
PURPOSE To investigate whether activity pacing interventions (alone or in conjunction with other evidence-based interventions) improve fatigue, physical function, psychological distress, depression, and anxiety in people with chronic fatigue syndrome (CFS). MATERIALS AND METHODS Seven databases were searched until 13 August 2022 for randomised controlled trials that included activity pacing interventions for CFS and a validated measure of fatigue. Secondary outcomes were physical function, psychological distress, depression, and anxiety. Two reviewers independently screened studies by title, abstract and full text. Methodological quality was evaluated using the PEDro scale. Random-effects meta-analyses were performed in R. RESULTS 6390 articles were screened, with 14 included. Good overall study quality was supported by PEDro scale ratings. Activity pacing interventions were effective (Hedges' g (95% CI)) at reducing fatigue (-0.52 (-0.73 to -0.32)), psychological distress (-0.37 (-0.51 to -0.24)) and depression (-0.29 (-0.49 to -0.09)) and improving physical function (mean difference 7.18 (3.17-11.18)) when compared to no treatment/usual care. The extent of improvement was greater for interventions that encouraged graded escalation of physical activities and cognitive activities. CONCLUSION Activity pacing interventions are effective in reducing fatigue and psychological distress and improving physical function in CFS, particularly when people are encouraged to gradually increase activities. REGISTRATION PROSPERO CRD42016036087. IMPLICATIONS FOR REHABILITATIONA key feature of chronic fatigue syndrome (CFS) is a prolonged post-exertional exacerbation of symptoms following physical activities or cognitive activities.Activity pacing is a common strategy often embedded in multi-component management programs for CFS.Activity pacing interventions are effective in reducing fatigue and psychological distress and improving physical function in CFS, particularly when patients are encouraged to gradually increase their activities.Healthcare professionals embedding activity pacing as part of treatment should work collaboratively with patients to ensure successful, individualised self-management strategies.
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Affiliation(s)
- Sally Casson
- The Kirby Institute, The University of New South Wales, Sydney, Australia
- School of Medical and Health Sciences, Edith Cowan University, Joondalup, Australia
| | - Matthew D Jones
- School of Health Sciences, The University of New South Wales, Sydney, Australia
- Centre for Pain IMPACT, Neuroscience Research Australia, Sydney, Australia
| | - Joanne Cassar
- The Kirby Institute, The University of New South Wales, Sydney, Australia
| | - Natalie Kwai
- The Kirby Institute, The University of New South Wales, Sydney, Australia
- School of Medical Sciences, University of Sydney, Sydney, Australia
| | - Andrew R Lloyd
- The Kirby Institute, The University of New South Wales, Sydney, Australia
| | - Benjamin K Barry
- School of Health Sciences, The University of New South Wales, Sydney, Australia
- School of Medicine, The University of Queensland, Brisbane, Australia
| | - Carolina X Sandler
- The Kirby Institute, The University of New South Wales, Sydney, Australia
- School of Health Sciences, Campbelltown Campus, Western Sydney University, Sydney, Australia
- Menzies Health Institute Queensland, Griffith University, Queensland, Australia
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He G, Cao Y, Ma H, Guo S, Xu W, Wang D, Chen Y, Wang H. Causal Effects between Gut Microbiome and Myalgic Encephalomyelitis/Chronic Fatigue Syndrome: A Two-Sample Mendelian Randomization Study. Front Microbiol 2023; 14:1190894. [PMID: 37485509 PMCID: PMC10359717 DOI: 10.3389/fmicb.2023.1190894] [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: 03/21/2023] [Accepted: 06/20/2023] [Indexed: 07/25/2023] Open
Abstract
Background Evidence from previous studies have implicated an important association between gut microbiota (GM) and Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS), but whether there is a definite causal relationship between GM and ME/CFS has not been elucidated. Method This study obtained instrumental variables of 211 GM taxa from the Genome Wide Association Study (GWAS), and mendelian randomization (MR) study was carried out to assess the effect of gut microbiota on ME/CFS risk from UK Biobank GWAS (2076 ME/CFS cases and 460,857 controls). Inverse variance weighted (IVW) was the primary method to analyze causality in this study, and a series of sensitivity analyses was performed to validate the robustness of the results. Results The inverse variance weighted (IVW) method indicated that genus Paraprevotella (OR:1.001, 95%CI:1.000-1.003, value of p < 0.05) and Ruminococca- ceae_UCG_014 (OR 1.003, 95% CI 1.000 to 1.005, value of p < 0.05) were positively associated with ME/CFS risk. Results from the weighted median method supported genus Paraprevotella (OR 1.003, 95% CI 1.000 to 1.005, value of p < 0.05) as a risk factor for ME/CFS. Conclusion This study reveals a causal relationship between genus paraprevotella, genus Ruminococcaceae_UCG_014 and ME/CFS, and our findings provide novel insights for further elucidating the developmental mechanisms mediated by the gut microbiota of ME/CFS.
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Affiliation(s)
- Gang He
- State Key laboratory of Molecular Vaccinology and Molecular Diagnostics. School of Public Health, Xiamen University, Xiamen, China
| | - Yu Cao
- State Key laboratory of Molecular Vaccinology and Molecular Diagnostics. School of Public Health, Xiamen University, Xiamen, China
| | - Honghao Ma
- State Key laboratory of Molecular Vaccinology and Molecular Diagnostics. School of Public Health, Xiamen University, Xiamen, China
| | - Siran Guo
- Yunnan Provincial Key Laboratory of Molecular Biology for Sinomedicine, Yunnan University of Traditional Chinese Medicine, Kunming, Yunnan, China
| | - Wangzi Xu
- State Key laboratory of Molecular Vaccinology and Molecular Diagnostics. School of Public Health, Xiamen University, Xiamen, China
| | - Dai Wang
- State Key laboratory of Molecular Vaccinology and Molecular Diagnostics. School of Public Health, Xiamen University, Xiamen, China
| | - Yongquan Chen
- Department of Clinical Laboratory, Xiang’an Hospital of Xiamen University, Xiamen, Fujian, China
| | - Houzhao Wang
- State Key laboratory of Molecular Vaccinology and Molecular Diagnostics. School of Public Health, Xiamen University, Xiamen, China
- Department of Clinical Laboratory, Xiang’an Hospital of Xiamen University, Xiamen, Fujian, China
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Tschopp R, König RS, Rejmer P, Paris DH. Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS): A preliminary survey among patients in Switzerland. Heliyon 2023; 9:e15595. [PMID: 37131449 PMCID: PMC10149204 DOI: 10.1016/j.heliyon.2023.e15595] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 03/07/2023] [Accepted: 04/13/2023] [Indexed: 05/04/2023] Open
Abstract
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS) is a multi-factorial systemic chronic debilitating disease of poorly understood etiology and limited systematic evidence. The questionnaire and interview-based survey included 169 ME/CFS patients from the Swiss ME/CFS association. The majority of patients were females (72.2%), single (55.7%) and without children (62.5%). Only one third were working (full/part-time). The mean onset of ME/CFS was 31.6 years of age with 15% of patients being symptomatic before their 18th birthday. In this cohort, patients had documented ME/CFS for a mean 13.7 years, whereby half (50.3%) stated their condition was progressively worsening. Triggering events and times of disease onset were recalled by 90% of the participants. An infectious disease was associated with a singular or part of multiple events by 72.9% and 80.6%, respectively. Prior to disease onset, a third of the patients reported respiratory infections; followed by gastro-intestinal infections (15.4%) and tick-borne diseases (16.2%). Viral infections were recalled by 77.8% of the respondents, with Epstein Barr Virus being the most commonly reported agent. Patients self-reported an average number of 13 different symptoms, all described specific triggers of symptoms exacerbation and 82.2% suffered from co-morbidities. This study collated clinically relevant information on ME/CFS patients in Switzerland, highlighting the extent of disease severity, the associated factors negatively affecting daily life activities and work status as well as potential socio-economic impact.
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Affiliation(s)
- Rea Tschopp
- Swiss Tropical and Public Health Institute, Kreuzstrasse 2, 4123 Allschwil, Switzerland
- University of University of Basel, Switzerland
- Armauer Hansen Research Institute, Jimma Road, PO Box 1005, Addis Ababa, Ethiopia
- Corresponding author. Swiss Tropical and Public Health Institute, Kreuzstrasse 2, 4123 Allschwil, Switzerland.
| | - Rahel S. König
- Faculty of Medicine, University of Basel, Klingelbergstrasse 61, 4056 Basel, Switzerland
| | - Protazy Rejmer
- Seegarten Clinic, Seestrasse 155A, 8802 Kilchberg ZH, Switzerland
| | - Daniel H. Paris
- Swiss Tropical and Public Health Institute, Kreuzstrasse 2, 4123 Allschwil, Switzerland
- University of University of Basel, Switzerland
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Shaikh SD, Sun N, Canakis A, Park WY, Weber HC. Irritable Bowel Syndrome and the Gut Microbiome: A Comprehensive Review. J Clin Med 2023; 12:jcm12072558. [PMID: 37048642 PMCID: PMC10095554 DOI: 10.3390/jcm12072558] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Revised: 03/10/2023] [Accepted: 03/21/2023] [Indexed: 03/31/2023] Open
Abstract
Irritable Bowel Syndrome (IBS) is a functional disorder of the gastrointestinal tract characterized by abdominal pain and altered bowel habits. It has a prevalence of 10 to 25% in the United States and has a high disease burden, as evidenced by reduced quality of life, decreased work productivity and increased healthcare utilization and costs. IBS has been associated with several intra-intestinal and extra-intestinal conditions, including psychiatric comorbidities. Although the pathophysiology of IBS has not been fully elucidated, it involves dysregulation of communication between the brain and gut (brain–gut axis) which is associated with alterations in intestinal motility, gut permeability, visceral hypersensitivity and gut microbiota composition. The purpose of this article is to review the role the gut microbiota plays in the pathophysiology of IBS, understand factors that affect the gut microbiome and explore the microbiome as a target of treatment.
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Bhatia S, Jason LA. Using Data Mining and Time Series to Investigate ME and CFS Naming Preferences. JOURNAL OF DISABILITY POLICY STUDIES 2023. [DOI: 10.1177/10442073231154027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
Abstract
There have been numerous iterations of naming convention specified for Myalgic Encephalomyelitis (ME) and Chronic Fatigue Syndrome (CFS). As health care turns to “big data” analytics to gain insights, the Google Trends database was mined to ascertain worldwide trends of public interest in several ME- and CFS-related search categories between 2004 and 2019. Time series analysis revealed that though “Chronic Fatigue Syndrome” remains the predominant search category in the ME and CFS field, the interest index declined at a rate of 2.77 per month during the 15-year study period. In the same time period, the interest index in “ME/CFS Hybrid” terms increased at a rate of 3.20 per month. Potential causal mechanisms for these trends and implications for patient sentiment analysis are discussed.
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Guo C, Che X, Briese T, Ranjan A, Allicock O, Yates RA, Cheng A, March D, Hornig M, Komaroff AL, Levine S, Bateman L, Vernon SD, Klimas NG, Montoya JG, Peterson DL, Lipkin WI, Williams BL. Deficient butyrate-producing capacity in the gut microbiome is associated with bacterial network disturbances and fatigue symptoms in ME/CFS. Cell Host Microbe 2023; 31:288-304.e8. [PMID: 36758522 PMCID: PMC10183837 DOI: 10.1016/j.chom.2023.01.004] [Citation(s) in RCA: 38] [Impact Index Per Article: 38.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 10/10/2022] [Accepted: 01/04/2023] [Indexed: 02/11/2023]
Abstract
Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is characterized by unexplained debilitating fatigue, cognitive dysfunction, gastrointestinal disturbances, and orthostatic intolerance. Here, we report a multi-omic analysis of a geographically diverse cohort of 106 cases and 91 healthy controls that revealed differences in gut microbiome diversity, abundances, functional pathways, and interactions. Faecalibacterium prausnitzii and Eubacterium rectale, which are both recognized as abundant, health-promoting butyrate producers in the human gut, were reduced in ME/CFS. Functional metagenomics, qPCR, and metabolomics of fecal short-chain fatty acids confirmed a deficient microbial capacity for butyrate synthesis. Microbiome-based machine learning classifier models were robust to geographic variation and generalizable in a validation cohort. The abundance of Faecalibacterium prausnitzii was inversely associated with fatigue severity. These findings demonstrate the functional nature of gut dysbiosis and the underlying microbial network disturbance in ME/CFS, providing possible targets for disease classification and therapeutic trials.
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Affiliation(s)
- Cheng Guo
- Center for Infection and Immunity, Mailman School of Public Health, Columbia University, New York, NY 10032, USA
| | - Xiaoyu Che
- Center for Infection and Immunity, Mailman School of Public Health, Columbia University, New York, NY 10032, USA; Department of Biostatistics, Mailman School of Public Health, Columbia University, New York, NY 10032, USA
| | - Thomas Briese
- Center for Infection and Immunity, Mailman School of Public Health, Columbia University, New York, NY 10032, USA; Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY 10032, USA
| | - Amit Ranjan
- Center for Infection and Immunity, Mailman School of Public Health, Columbia University, New York, NY 10032, USA
| | - Orchid Allicock
- Center for Infection and Immunity, Mailman School of Public Health, Columbia University, New York, NY 10032, USA
| | - Rachel A Yates
- Center for Infection and Immunity, Mailman School of Public Health, Columbia University, New York, NY 10032, USA
| | - Aaron Cheng
- Center for Infection and Immunity, Mailman School of Public Health, Columbia University, New York, NY 10032, USA
| | - Dana March
- Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY 10032, USA
| | - Mady Hornig
- Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY 10032, USA
| | - Anthony L Komaroff
- Division of General Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | | | | | | | - Nancy G Klimas
- Institute for Neuro-Immune Medicine, College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, FL 33314, USA; Miami VA Medical Center, Miami, FL 33125, USA
| | - Jose G Montoya
- Palo Alto Medical Foundation, Jack S. Remington Laboratory for Specialty Diagnostics of Toxoplasmosis, Palo Alto, CA 94301, USA
| | - Daniel L Peterson
- Sierra Internal Medicine at Incline Village, Incline Village, NV 89451, USA
| | - W Ian Lipkin
- Center for Infection and Immunity, Mailman School of Public Health, Columbia University, New York, NY 10032, USA; Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY 10032, USA; Department of Pathology and Cell Biology, College of Physicians and Surgeons, Columbia University, New York, NY 10032, USA
| | - Brent L Williams
- Center for Infection and Immunity, Mailman School of Public Health, Columbia University, New York, NY 10032, USA; Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY 10032, USA; Department of Pathology and Cell Biology, College of Physicians and Surgeons, Columbia University, New York, NY 10032, USA.
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12
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Nepotchatykh E, Caraus I, Elremaly W, Leveau C, Elbakry M, Godbout C, Rostami-Afshari B, Petre D, Khatami N, Franco A, Moreau A. Circulating microRNA expression signatures accurately discriminate myalgic encephalomyelitis from fibromyalgia and comorbid conditions. Sci Rep 2023; 13:1896. [PMID: 36732593 PMCID: PMC9894933 DOI: 10.1038/s41598-023-28955-9] [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: 04/29/2022] [Accepted: 01/27/2023] [Indexed: 02/04/2023] Open
Abstract
Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS), and fibromyalgia (FM) are two chronic complex diseases with overlapping symptoms affecting multiple systems and organs over time. Due to the absence of validated biomarkers and similarity in symptoms, both disorders are misdiagnosed, and the comorbidity of the two is often unrecognized. Our study aimed to investigate the expression profiles of 11 circulating miRNAs previously associated with ME/CFS pathogenesis in FM patients and individuals with a comorbid diagnosis of FM associated with ME/CFS (ME/CFS + FM), and matched sedentary healthy controls. Whether these 11 circulating miRNAs expression can differentiate between the two disorders was also examined. Our results highlight differential circulating miRNAs expression signatures between ME/CFS, FM and ME/CFS + FM, which also correlate to symptom severity between ME/CFS and ME/CFS + FM groups. We provided a prediction model, by using a machine-learning approach based on 11 circulating miRNAs levels, which can be used to discriminate between patients suffering from ME/CFS, FM and ME/CFS + FM. These 11 miRNAs are proposed as potential biomarkers for discriminating ME/CFS from FM. The results of this study demonstrate that ME/CFS and FM are two distinct illnesses, and we highlight the comorbidity between the two conditions. Proper diagnosis of patients suffering from ME/CFS, FM or ME/CFS + FM is crucial to elucidate the pathophysiology of both diseases, determine preventive measures, and establish more effective treatments.
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Affiliation(s)
- Evguenia Nepotchatykh
- Viscogliosi Laboratory in Molecular Genetics of Musculoskeletal Diseases, Office 2.17.027, Sainte-Justine University Hospital Research Center, 3175 Cote-Ste-Catherine Road, Montreal, QC, H3T 1C5, Canada.,Molecular Biology PhD Program, Faculty of Medicine, Université de Montréal, 2900 Edouard Montpetit Blvd, Montreal, QC, H3T 1J4, Canada.,Open Medicine Foundation ME/CFS Collaborative Center at CHU Sainte-Justine/Université de Montréal, Montreal, Canada.,ICanCME Research Network, Sainte-Justine University Hospital Research Center, 3175 Cote-Ste-Catherine Road, Montreal, QC, H3T 1C5, Canada
| | - Iurie Caraus
- Viscogliosi Laboratory in Molecular Genetics of Musculoskeletal Diseases, Office 2.17.027, Sainte-Justine University Hospital Research Center, 3175 Cote-Ste-Catherine Road, Montreal, QC, H3T 1C5, Canada.,Department of Biochemistry and Molecular Medicine, Faculty of Medicine, Université de Montréal, 2900 Edouard Montpetit Blvd, Montreal, QC, H3T 1J4, Canada.,Open Medicine Foundation ME/CFS Collaborative Center at CHU Sainte-Justine/Université de Montréal, Montreal, Canada.,ICanCME Research Network, Sainte-Justine University Hospital Research Center, 3175 Cote-Ste-Catherine Road, Montreal, QC, H3T 1C5, Canada
| | - Wesam Elremaly
- Viscogliosi Laboratory in Molecular Genetics of Musculoskeletal Diseases, Office 2.17.027, Sainte-Justine University Hospital Research Center, 3175 Cote-Ste-Catherine Road, Montreal, QC, H3T 1C5, Canada.,Open Medicine Foundation ME/CFS Collaborative Center at CHU Sainte-Justine/Université de Montréal, Montreal, Canada.,ICanCME Research Network, Sainte-Justine University Hospital Research Center, 3175 Cote-Ste-Catherine Road, Montreal, QC, H3T 1C5, Canada
| | - Corinne Leveau
- Viscogliosi Laboratory in Molecular Genetics of Musculoskeletal Diseases, Office 2.17.027, Sainte-Justine University Hospital Research Center, 3175 Cote-Ste-Catherine Road, Montreal, QC, H3T 1C5, Canada.,Department of Biochemistry and Molecular Medicine, Faculty of Medicine, Université de Montréal, 2900 Edouard Montpetit Blvd, Montreal, QC, H3T 1J4, Canada.,Open Medicine Foundation ME/CFS Collaborative Center at CHU Sainte-Justine/Université de Montréal, Montreal, Canada.,ICanCME Research Network, Sainte-Justine University Hospital Research Center, 3175 Cote-Ste-Catherine Road, Montreal, QC, H3T 1C5, Canada
| | - Mohamed Elbakry
- Viscogliosi Laboratory in Molecular Genetics of Musculoskeletal Diseases, Office 2.17.027, Sainte-Justine University Hospital Research Center, 3175 Cote-Ste-Catherine Road, Montreal, QC, H3T 1C5, Canada.,Open Medicine Foundation ME/CFS Collaborative Center at CHU Sainte-Justine/Université de Montréal, Montreal, Canada.,ICanCME Research Network, Sainte-Justine University Hospital Research Center, 3175 Cote-Ste-Catherine Road, Montreal, QC, H3T 1C5, Canada.,Biochemistry Division, Chemistry Department, Faculty of Science, Tanta University, Tanta, Egypt
| | - Christian Godbout
- Patient-Partner, ICanCME Research Network, Sainte-Justine University Hospital Research Center, 3175 Cote-Ste-Catherine Road, Montreal, QC, H3T 1C5, Canada
| | - Bita Rostami-Afshari
- Viscogliosi Laboratory in Molecular Genetics of Musculoskeletal Diseases, Office 2.17.027, Sainte-Justine University Hospital Research Center, 3175 Cote-Ste-Catherine Road, Montreal, QC, H3T 1C5, Canada.,Department of Biochemistry and Molecular Medicine, Faculty of Medicine, Université de Montréal, 2900 Edouard Montpetit Blvd, Montreal, QC, H3T 1J4, Canada.,Open Medicine Foundation ME/CFS Collaborative Center at CHU Sainte-Justine/Université de Montréal, Montreal, Canada.,ICanCME Research Network, Sainte-Justine University Hospital Research Center, 3175 Cote-Ste-Catherine Road, Montreal, QC, H3T 1C5, Canada
| | - Diana Petre
- Viscogliosi Laboratory in Molecular Genetics of Musculoskeletal Diseases, Office 2.17.027, Sainte-Justine University Hospital Research Center, 3175 Cote-Ste-Catherine Road, Montreal, QC, H3T 1C5, Canada.,Department of Biochemistry and Molecular Medicine, Faculty of Medicine, Université de Montréal, 2900 Edouard Montpetit Blvd, Montreal, QC, H3T 1J4, Canada.,Open Medicine Foundation ME/CFS Collaborative Center at CHU Sainte-Justine/Université de Montréal, Montreal, Canada.,ICanCME Research Network, Sainte-Justine University Hospital Research Center, 3175 Cote-Ste-Catherine Road, Montreal, QC, H3T 1C5, Canada
| | - Nasrin Khatami
- Viscogliosi Laboratory in Molecular Genetics of Musculoskeletal Diseases, Office 2.17.027, Sainte-Justine University Hospital Research Center, 3175 Cote-Ste-Catherine Road, Montreal, QC, H3T 1C5, Canada.,Department of Biochemistry and Molecular Medicine, Faculty of Medicine, Université de Montréal, 2900 Edouard Montpetit Blvd, Montreal, QC, H3T 1J4, Canada
| | - Anita Franco
- Viscogliosi Laboratory in Molecular Genetics of Musculoskeletal Diseases, Office 2.17.027, Sainte-Justine University Hospital Research Center, 3175 Cote-Ste-Catherine Road, Montreal, QC, H3T 1C5, Canada.,Open Medicine Foundation ME/CFS Collaborative Center at CHU Sainte-Justine/Université de Montréal, Montreal, Canada.,ICanCME Research Network, Sainte-Justine University Hospital Research Center, 3175 Cote-Ste-Catherine Road, Montreal, QC, H3T 1C5, Canada
| | - Alain Moreau
- Viscogliosi Laboratory in Molecular Genetics of Musculoskeletal Diseases, Office 2.17.027, Sainte-Justine University Hospital Research Center, 3175 Cote-Ste-Catherine Road, Montreal, QC, H3T 1C5, Canada. .,Department of Biochemistry and Molecular Medicine, Faculty of Medicine, Université de Montréal, 2900 Edouard Montpetit Blvd, Montreal, QC, H3T 1J4, Canada. .,Open Medicine Foundation ME/CFS Collaborative Center at CHU Sainte-Justine/Université de Montréal, Montreal, Canada. .,ICanCME Research Network, Sainte-Justine University Hospital Research Center, 3175 Cote-Ste-Catherine Road, Montreal, QC, H3T 1C5, Canada. .,Department of Stomatology, Faculty of Dentistry, Université de Montréal, 2900 Edouard Montpetit Blvd, Montreal, QC, H3T 1J4, Canada.
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13
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Rasa-Dzelzkaleja S, Krumina A, Capenko S, Nora-Krukle Z, Gravelsina S, Vilmane A, Ievina L, Shoenfeld Y, Murovska M. The persistent viral infections in the development and severity of myalgic encephalomyelitis/chronic fatigue syndrome. J Transl Med 2023; 21:33. [PMID: 36653846 PMCID: PMC9847171 DOI: 10.1186/s12967-023-03887-0] [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: 11/17/2022] [Accepted: 01/11/2023] [Indexed: 01/19/2023] Open
Abstract
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. HHV-6A and HHV-6B were distinguished by PCR and restriction analysis. Immunoenzymatic assays were applied to estimate the presence of virus-specific antibodies and the level of cytokines. RESULTS HHV-6A/B, HHV-7, and B19V specific antibodies were detected among patients and healthy individuals in 92.1% and 76.7%, 84.6% and 93.8%, and 78% and 67.4% of cases. HHV-6B had 99% of HHV-6 positive patients. Latent HHV-6A/B, HHV-7, and B19V infection/co-infection was observed in 51.5% of the patients and 76.7% of the healthy individuals, whereas active-45% of the ME/CFS patients and 8.7% of healthy individuals. HHV-6A/B load in patients with a persistent infection/co-infection in a latent and active phase was 262 and 653.2 copies/106 cells, whereas HHV-7 load was 166.5 and 248.5 copies/106 cells, and B19V-96.8 and 250.8 copies/106 cells, respectively. ME/CFS patients with persistent infection in an active phase had a higher level of pro-inflammatory cytokines (interleukin(IL)-6, tumor necrosis factor-alpha(TNF-α) and IL-12) and anti-inflammatory (IL-10) than with a persistent infection in a latent phase. A significant difference was revealed in the levels of TNF-α, IL-12, and IL-10 among the patient groups without infection, with latent infection/co-infection, active single, double and triple co-infection. The levels of TNF-α, IL-12, and IL-10 are significantly higher in patients with severe compared with a moderate course of ME/CFS. CONCLUSIONS Significantly more persistent HHV-6A/B, HHV-7, and B19V infection/co-infection in an active phase with a higher viral load and elevated levels of pro- and anti-inflammatory cytokines among patients with ME/CFS than healthy individuals indicate the importance of these infections/co-infections in ME/CFS development. The presence of these infections/co-infections influences the ME/CFS clinical course severity.
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Affiliation(s)
- Santa Rasa-Dzelzkaleja
- grid.17330.360000 0001 2173 9398Institute of Microbiology and Virology, Rīga Stradiņš University, Riga, Latvia
| | - Angelika Krumina
- grid.17330.360000 0001 2173 9398Faculty of Medicine, Department of Infectology, Rīga Stradiņš University, Riga, Latvia
| | - Svetlana Capenko
- grid.17330.360000 0001 2173 9398Institute of Microbiology and Virology, Rīga Stradiņš University, Riga, Latvia
| | - Zaiga Nora-Krukle
- grid.17330.360000 0001 2173 9398Institute of Microbiology and Virology, Rīga Stradiņš University, Riga, Latvia
| | - Sabine Gravelsina
- grid.17330.360000 0001 2173 9398Institute of Microbiology and Virology, Rīga Stradiņš University, Riga, Latvia
| | - Anda Vilmane
- grid.17330.360000 0001 2173 9398Institute of Microbiology and Virology, Rīga Stradiņš University, Riga, Latvia
| | - Lauma Ievina
- grid.17330.360000 0001 2173 9398Institute of Microbiology and Virology, Rīga Stradiņš University, Riga, Latvia
| | - Yehuda Shoenfeld
- grid.413795.d0000 0001 2107 2845Zabludowicz Center for Autoimmune Diseases, Sheba Medical Centre, Ramat Gan, Israel
| | - Modra Murovska
- grid.17330.360000 0001 2173 9398Institute of Microbiology and Virology, Rīga Stradiņš University, Riga, Latvia
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14
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Rowe K. Chronic Fatigue Syndrome/Myalgic Encephalomyelitis (CFS/ME) in Adolescents: Practical Guidance and Management Challenges. Adolesc Health Med Ther 2023; 14:13-26. [PMID: 36632532 PMCID: PMC9827635 DOI: 10.2147/ahmt.s317314] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 12/21/2022] [Indexed: 01/06/2023] Open
Abstract
This paper reviews the current understanding of myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS), and whether any treatment strategies have been effective. ME/CFS is a condition of as yet unknown etiology that commonly follows an infective process. It includes a new onset of fatigue (of more than 3-6 month duration and not relieved by rest), post-exertional malaise, cognitive difficulties and unrefreshing sleep, and frequently orthostatic intolerance, somatic symptoms and pain. Long COVID has renewed interest in the condition and stimulated research with findings suggestive of a multisystem neuroimmune disease. There are no definitively effective treatments. Despite earlier recommendations regarding graded exercise therapy and cognitive behavior therapy, the current recommendations are managing symptoms, with lifestyle management and supportive care. This paper provides an outline of strategies that young people and their families have reported as helpful in managing a chronic illness that impacts their life socially, physically, emotionally, cognitively and educationally. As the illness frequently occurs at a time of rapid developmental changes, reducing these impacts is reported to be as important as managing the physical symptoms. Young people face a mean duration of 5 years illness (range 1-16 years) with a likely residual 20% having significant restrictions after 10 years. Their feedback has suggested that symptom management, self-management strategies, advocacy and educational liaison have been the most helpful. They value professionals who will listen and take them seriously, and after excluding alternative diagnoses, they explain the diagnosis, are supportive and assist in monitoring their progress. Remaining engaged in education was the best predictor of later functioning. This allowed for social connections, as well as potential independence and fulfilling some aspirations. The need to consider the impact of this chronic illness on all aspects of adolescent development, as part of management, is highlighted.
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Affiliation(s)
- Katherine Rowe
- Department of General Medicine, Royal Children’s Hospital, Melbourne, Victoria, Australia,Correspondence: Katherine Rowe, Department of General Medicine, Royal Children’s Hospital, Flemington Road Parkville, Melbourne, Victoria, 3052, Australia, Tel +61 412059283, Email
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15
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Kingdon C, Lowe A, Shepherd C, Nacul L. What Primary Care Practitioners Need to Know about the New NICE Guideline for Myalgic Encephalomyelitis/Chronic Fatigue Syndrome in Adults. Healthcare (Basel) 2022; 10:2438. [PMID: 36553962 PMCID: PMC9778354 DOI: 10.3390/healthcare10122438] [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: 10/19/2022] [Revised: 11/29/2022] [Accepted: 11/30/2022] [Indexed: 12/12/2022] Open
Abstract
The new NICE guideline for myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS), published in October 2021, makes significant changes in treatment recommendations. It acknowledges the complexity of this chronic medical condition, which always impacts quality of life and can be profoundly disabling, recognising the prejudice and stigma that people with ME/CFS often experience in the absence of any specific diagnostic test. The guideline outlines steps for accurate diagnosis, recognising post-exertional malaise as a core symptom; importantly, ME/CFS can now be diagnosed after just 3 months in a bid to improve long-term health outcomes. It recommends the need for individual, tailored management by a multi-disciplinary team, ensuring that the wellbeing of the individual is paramount. The guideline makes clear that any programme based on fixed incremental increases in physical activity or exercise, for example, graded exercise therapy (GET), should not be offered as a treatment for ME/CFS and emphasises that cognitive behavioural therapy (CBT) should only be offered as a supportive intervention. Because of the rigorous methodology required by NICE Committee review and the inclusion of the testimony of people with lived experience as committee members, this guideline will influence the future diagnosis and management of ME/CFS in the UK and beyond.
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Affiliation(s)
- Caroline Kingdon
- CureME, Clinical Research Department, London School of Hygiene and Tropical Medicine, London WC1E 7HT, UK
| | - Adam Lowe
- Centre for New Writing in the School of Arts, Languages and Cultures, University of Manchester, Oxford Rd, Manchester M13 9PL, UK
| | - Charles Shepherd
- Myalgic Encephalomyelitis Association (MEA), 7 Apollo Office Court, Buckingham MK18 4DF, UK
| | - Luis Nacul
- CureME, Clinical Research Department, London School of Hygiene and Tropical Medicine, London WC1E 7HT, UK
- B.C. Women’s Hospital & Health Centre, Complex Diseases Program, Vancouver, BC V6H 3N1, Canada
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16
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Smakowski A, Adamson J, Turner T, Chalder T. Graded exercise therapy for patients with chronic fatigue syndrome in secondary care - a benchmarking study. Disabil Rehabil 2022; 44:5878-5886. [PMID: 34498994 DOI: 10.1080/09638288.2021.1949049] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
OBJECTIVE We investigated the effectiveness of graded exercise therapy (GET) delivered to patients with chronic fatigue syndrome/myalgic encephalomyelitis (CFS/ME) in a routine, specialist clinic by measuring patient-reported outcome data collected prospectively over several timepoints alongside therapy. Benchmarking analyses were used to compare our results with those found in randomised controlled trials (RCTs). METHODS Data were collected from patients, with a diagnosis of CFS/ME, who had been referred to a specialist clinical service in South London. Measures included Chalder Fatigue Questionnaire, Physical Functioning Subscale of the Short-Form Health Questionnaire, and the Work and Social Adjustment Scale. Change on each measure was calculated over time using linear mixed-model analyses. Within group effect sizes were calculated and compared with previous RCTs. RESULTS Fatigue scores were significantly reduced by session 4 (-5.18, 95%CIs -7.90, -2.45) and at follow-up (-4.73, 95%CIs -7.60, -1.85). Work and social adjustment and physical functioning progressively improved over the course of therapy, reaching significance at discharge and maintained at follow-up (WSAS -4.97, 95%CIs -7.97, -1.97; SF-36 10.75, 95%CIs 2.19, 19.31). CONCLUSIONS GET is an effective treatment for CFS/ME within clinical practice. However, effect sizes were smaller in routine clinical practice than RCTs suggesting that avenues for augmentation need to be considered.Implications for rehabilitationIt is important to assess whether patient reported outcomes of treatments that have been evaluated in the context of clinical trials are similar in routine clinical practice.This study shows fatigue severity, physical functioning, and work and social adjustment can significantly improve after graded exercise therapy for patients with chronic fatigue syndrome within a specialist service.Benchmarking methods showed clinical outcomes obtained smaller effect sizes than randomised controlled trials - techniques to maximise patient outcomes should be considered.
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Affiliation(s)
| | - James Adamson
- South London and Maudsley NHS Foundation Trust, London, UK
- Psychological Medicine, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Tracey Turner
- South London and Maudsley NHS Foundation Trust, London, UK
| | - Trudie Chalder
- South London and Maudsley NHS Foundation Trust, London, UK
- Psychological Medicine, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
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17
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Generalized Worry in Patients With Chronic Fatigue Syndrome Following Cognitive Behavioral Therapy: A Prospective Cohort Study in Secondary Care. Behav Ther 2022; 53:828-842. [PMID: 35987542 DOI: 10.1016/j.beth.2022.01.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 01/06/2022] [Accepted: 01/12/2022] [Indexed: 11/24/2022]
Abstract
Research has shown that generalized anxiety disorder is commonly associated with Chronic Fatigue Syndrome (CFS). This prospective cohort study aimed to investigate the prevalence of generalized worry in CFS patients and its relationship with fatigue, anxiety and social functioning, before and after Cognitive Behavioral Therapy (CBT). Our cohort consisted of 470 patients diagnosed with CFS who received CBT at a secondary care, specialist clinic. Patients completed self-report measures investigating levels of generalized worry, fatigue, work and social adjustment, anxiety and depression at baseline (pretreatment), discharge from treatment, 3-month and 6-month follow up (posttreatment). Analysis indicated a high prevalence of generalized worry (72.4%) at assessment. A significant reduction in worry following CBT (M = -3.42, p < .001, 95% CIs: 2.26, 4.57) was observed at discharge, which remained stable at follow-up. Severe baseline worriers had greater overall fatigue score (M = 3.74, p = .026, 95% CIs: .33, 7.15) and worse overall work and social adjustment than mild worriers across time-points (M = 5.42, p = .035 95% CIs: .27, 10.58). Avoidance behavior mediated the association between generalized worry and work and social adjustment (95% bootstrap CIs: 013, .080). The majority of patients with CFS had comorbid generalized worry and severe worriers reported greater fatigue, anxiety, and worse work and social adjustment. This suggests that CFS patients may benefit from targeting generalized worry during CBT.
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18
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The Occurrence of Hyperactivated Platelets and Fibrinaloid Microclots in Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS). Pharmaceuticals (Basel) 2022; 15:ph15080931. [PMID: 36015078 PMCID: PMC9413879 DOI: 10.3390/ph15080931] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 07/20/2022] [Accepted: 07/23/2022] [Indexed: 12/10/2022] Open
Abstract
We have previously demonstrated that platelet-poor plasma (PPP) obtained from patients with Long COVID/Post-Acute Sequelae of COVID-19 (PASC) is characterized by a hypercoagulable state and contains hyperactivated platelets and considerable numbers of already-formed amyloid fibrin(ogen) or fibrinaloid microclots. Due to the substantial overlap in symptoms and etiology between Long COVID/PASC and ME/CFS, we investigated whether coagulopathies reflected in Long COVID/PASC—hypercoagulability, platelet hyperactivation, and fibrinaloid microclot formation—were present in individuals with ME/CFS and gender- and age-matched healthy controls. ME/CFS samples showed significant hypercoagulability as judged by thromboelastography of both whole blood and platelet-poor plasma. The area of plasma images containing fibrinaloid microclots was commonly more than 10-fold greater in untreated PPP from individuals with ME/CFS than in that of healthy controls. A similar difference was found when the plasma samples were treated with thrombin. Using fluorescently labelled PAC-1, which recognizes glycoprotein IIb/IIIa, and CD62P, which binds P-selectin, we observed hyperactivation of platelets in ME/CFS hematocrit samples. Using a quantitative scoring system, the ME/CFS platelets were found to have a mean spreading score of 2.72 ± 1.24 vs. 1.00 (activation with pseudopodia formation) for healthy controls. We conclude that ME/CFS is accompanied by substantial and measurable changes in coagulability, platelet hyperactivation, and fibrinaloid microclot formation. However, the fibrinaloid microclot load was not as great as was previously noted in Long COVID/PASC. Fibrinaloid microclots, in particular, may contribute to many ME/CFS symptoms, such as fatigue, seen in patients with ME/CFS, via the (temporary) blockage of microcapillaries and hence ischemia. Furthermore, fibrinaloid microclots might damage the endothelium. The discovery of these biomarkers represents an important development in ME/CFS research. It also points to possible uses for treatment strategies using known drugs and/or nutraceuticals that target systemic vascular pathology and endothelial inflammation.
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Sarter L, Heider J, Witthöft M, Rief W, Kleinstäuber M. Using clinical patient characteristics to predict treatment outcome of cognitive behavior therapies for individuals with medically unexplained symptoms: A systematic review and meta-analysis. Gen Hosp Psychiatry 2022; 77:11-20. [PMID: 35390568 DOI: 10.1016/j.genhosppsych.2022.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 02/27/2022] [Accepted: 03/01/2022] [Indexed: 11/17/2022]
Abstract
OBJECTIVE For individuals with medically unexplained symptoms (MUS), cognitive behavioral therapy (CBT) is the best-evaluated treatment. This systematic review and meta-analyses identify clinical patient characteristics associated with the treatment outcome of CBT for MUS. METHODS A systematic literature search (PubMed, PsycInfo, Web of Science) resulted in 53 eligible studies; of these 32 studies could be included in meta-analyses. Pooled correlation coefficients between predictors and treatment outcome were calculated with a random-effects model. Moderator analyses were conducted to examine differences between subgroups of MUS and different levels of methodological study quality. RESULTS Meta-analyses demonstrated that individuals with higher symptom intensity (r = 0.38; p < 0.001), lower physical functioning (r = -0.29; p < 0.001), lower emotional and social functioning (r = -0.37; p < 0.001), more potential symptom-related incentives (r = -0.15; p = 0.001), or longer symptom duration (r = 0.10; p = 0.033) at the beginning of treatment reported less change of symptom severity until the end of therapy or higher end-of-treatment symptom severity. The pooled effect sizes did not differ between certain subgroups of MUS or between different levels of methodological quality. CONCLUSION Our findings indicated that clinical characteristics of MUS patients are associated with treatment outcome of CBT. We discuss how the results can be used to optimize and personalize future treatments for MUS.
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Affiliation(s)
- Lena Sarter
- Philipps-University Marburg, Department of Clinical Psychology and Psychotherapy, Gutenbergstraße 18, 35037 Marburg, Germany.
| | - Jens Heider
- University Koblenz-Landau, Department of Clinical Psychology and Psychotherapy, Ostbahnstraße 10, 76829 Landau, Germany.
| | - Michael Witthöft
- Johannes Gutenberg-University Mainz, Department of Clinical Psychology, Psychotherapy and Experimental Psychopathology, Wallstraße 3, 55122 Mainz, Germany.
| | - Winfried Rief
- Philipps-University Marburg, Department of Clinical Psychology and Psychotherapy, Gutenbergstraße 18, 35037 Marburg, Germany.
| | - Maria Kleinstäuber
- Department of Psychology, Emma Eccles Jones College of Education and Human Services, Utah State University, Logan, USA.
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20
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Jacob L, Haro JM, Kostev K. Associations of physical and psychiatric conditions with chronic fatigue syndrome in Germany: an exploratory case-control study. Psychol Med 2022; 52:780-786. [PMID: 32686638 DOI: 10.1017/s0033291720002470] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
BACKGROUND Only a few studies have analyzed the effects of physical and psychiatric conditions on the risk of chronic fatigue syndrome (CFS). Therefore, the goal of this exploratory case-control study was to investigate the associations of physical and psychiatric conditions with CFS in almost 19 800 adults from Germany. METHODS This study included patients diagnosed for the first time with CFS in one of 1238 general practices in Germany between 2010 and 2017 (index date). Controls without CFS were matched (1:1) to cases with CFS by sex, age, index year, and practice. Physical and psychiatric conditions diagnosed in the year prior to the index date were included if they were present in at least 3% of patients with CFS. Associations between physical and psychiatric conditions (33 potential independent variables) and CFS (dependent variable) were analyzed in an adjusted conditional logistic regression model, and physical and psychiatric disorders were included in the model using forward stepwise selection. RESULTS This study included 9896 cases with CFS and 9896 controls without CFS [65.1% women; mean (standard deviation) age 49.5 (18.3) years]. Seven conditions were associated with CFS in the adjusted regression model. The disorders displaying the strongest relationship with CFS were cancer [odds ratio (OR) = 2.57, 95% confidence interval (CI) = 2.24-2.95], sleep disorders (OR = 1.88, 95% CI = 1.66-2.12) and depression (OR = 1.77, 95% CI = 1.61-1.95). CONCLUSIONS Cancer, sleep disorders, and depression were strongly and positively associated with CFS. Additional studies are needed to gain a better understanding of the mechanisms underlying these relationships.
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Affiliation(s)
- Louis Jacob
- Faculty of Medicine, University of Versailles Saint-Quentin-en-Yvelines, Montigny-le-Bretonneux, France
- Research and Development Unit, Parc Sanitari Sant Joan de Déu, CIBERSAM, Dr Antoni Pujadas, 42, Sant Boi de Llobregat, Barcelona08830, Spain
| | - Josep Maria Haro
- Research and Development Unit, Parc Sanitari Sant Joan de Déu, CIBERSAM, Dr Antoni Pujadas, 42, Sant Boi de Llobregat, Barcelona08830, Spain
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21
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Zhao S, Chi A, Wan B, Liang J. Differential Metabolites and Metabolic Pathways Involved in Aerobic Exercise Improvement of Chronic Fatigue Symptoms in Adolescents Based on Gas Chromatography-Mass Spectrometry. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19042377. [PMID: 35206569 PMCID: PMC8872503 DOI: 10.3390/ijerph19042377] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Revised: 02/12/2022] [Accepted: 02/16/2022] [Indexed: 12/03/2022]
Abstract
Studies have found that the prevalence of chronic fatigue syndrome (CFS) in adolescents has continued to increase over the years, affecting learning and physical health. High school is a critical stage for adolescents to grow and mature. There are inadequate detection and rehabilitation methods for CFS due to an insufficient understanding of the physiological mechanisms of CFS. The purpose of this study was to evaluate the effect and metabolic mechanisms of an aerobic running intervention program for high school students with CFS. Forty-six male high school students with CFS were randomly assigned to the exercise intervention group (EI) and control group (CFS). Twenty-four age- and sex-matched healthy male students were recruited as healthy controls (HCs). The EI group received the aerobic intervention for 12 weeks, three times a week, in 45-min sessions; the CFS group maintained their daily routines as normal. The outcome measures included fatigue symptoms and oxidation levels. Keratin was extracted from the nails of all participants, and the oxidation level was assessed by measuring the content of 3-Nitrotyrosine (3-NT) in the keratin by ultraviolet spectrophotometry. All participants’ morning urine was collected to analyze urinary differential metabolites by the GC-MS technique before and after the intervention, and MetaboAnalyst 5.0 was used for pathway analysis. Compared with before the intervention, the fatigue score and 3-NT level in the EI group were significantly decreased after the intervention. The CFS group was screened for 20 differential metabolites involving the disruption of six metabolic pathways, including arginine biosynthesis, glycerolipid metabolism, pentose phosphate pathway, purine metabolism, β-alanine metabolism, and arginine and proline metabolism. After the intervention, 21 differential metabolites were screened, involved in alterations in three metabolic pathways: beta-alanine metabolism, pentose phosphate metabolism, and arginine and proline metabolism. Aerobic exercise was found to lessen fatigue symptoms and oxidative levels in students with CFS, which may be related to the regulation of putrescine (arginine and proline metabolism), 6-Phospho-D-Gluconate (starch and sucrose metabolism pathway), and Pentose (phosphate metabolism pathway).
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Affiliation(s)
- Shanguang Zhao
- Institute of Physical Education, Shaanxi Normal University, Xi’an 710119, China;
| | - Aiping Chi
- Institute of Physical Education, Shaanxi Normal University, Xi’an 710119, China;
- Correspondence: (A.C.); (B.W.)
| | - Bingjun Wan
- Institute of Physical Education, Shaanxi Normal University, Xi’an 710119, China;
- Correspondence: (A.C.); (B.W.)
| | - Jian Liang
- First Middle School of Shenmu City, Shenmu 719300, China;
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22
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König RS, Albrich WC, Kahlert CR, Bahr LS, Löber U, Vernazza P, Scheibenbogen C, Forslund SK. The Gut Microbiome in Myalgic Encephalomyelitis (ME)/Chronic Fatigue Syndrome (CFS). Front Immunol 2022; 12:628741. [PMID: 35046929 PMCID: PMC8761622 DOI: 10.3389/fimmu.2021.628741] [Citation(s) in RCA: 40] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 12/09/2021] [Indexed: 12/16/2022] Open
Abstract
Myalgic encephalomyelitis (ME) or Chronic Fatigue Syndrome (CFS) is a neglected, debilitating multi-systemic disease without diagnostic marker or therapy. Despite evidence for neurological, immunological, infectious, muscular and endocrine pathophysiological abnormalities, the etiology and a clear pathophysiology remains unclear. The gut microbiome gained much attention in the last decade with manifold implications in health and disease. Here we review the current state of knowledge on the interplay between ME/CFS and the microbiome, to identify potential diagnostic or interventional approaches, and propose areas where further research is needed. We iteratively selected and elaborated on key theories about a correlation between microbiome state and ME/CFS pathology, developing further hypotheses. Based on the literature we hypothesize that antibiotic use throughout life favours an intestinal microbiota composition which might be a risk factor for ME/CFS. Main proposed pathomechanisms include gut dysbiosis, altered gut-brain axis activity, increased gut permeability with concomitant bacterial translocation and reduced levels of short-chain-fatty acids, D-lactic acidosis, an abnormal tryptophan metabolism and low activity of the kynurenine pathway. We review options for microbiome manipulation in ME/CFS patients including probiotic and dietary interventions as well as fecal microbiota transplantations. Beyond increasing gut permeability and bacterial translocation, specific dysbiosis may modify fermentation products, affecting peripheral mitochondria. Considering the gut-brain axis we strongly suspect that the microbiome may contribute to neurocognitive impairments of ME/CFS patients. Further larger studies are needed, above all to clarify whether D-lactic acidosis and early-life antibiotic use may be part of ME/CFS etiology and what role changes in the tryptophan metabolism might play. An association between the gut microbiome and the disease ME/CFS is plausible. As causality remains unclear, we recommend longitudinal studies. Activity levels, bedridden hours and disease progression should be compared to antibiotic exposure, drug intakes and alterations in the composition of the microbiota. The therapeutic potential of fecal microbiota transfer and of targeted dietary interventions should be systematically evaluated.
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Affiliation(s)
- Rahel S König
- Faculty of Medicine, University of Basel, Basel, Switzerland
| | - Werner C Albrich
- Division of Infectious Diseases and Hospital Epidemiology, Cantonal Hospital St. Gallen, St. Gallen, Switzerland
| | - Christian R Kahlert
- Division of Infectious Diseases and Hospital Epidemiology, Cantonal Hospital St. Gallen, St. Gallen, Switzerland.,Division of Infectious Diseases and Hospital Epidemiology, Children's Hospital of Eastern Switzerland, St. Gallen, Switzerland
| | - Lina Samira Bahr
- Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.,Experimental and Clinical Research Center, A Joint Cooperation of Max-Delbrück Center for Molecular Medicine and Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Ulrike Löber
- Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.,Experimental and Clinical Research Center, A Joint Cooperation of Max-Delbrück Center for Molecular Medicine and Charité-Universitätsmedizin Berlin, Berlin, Germany.,Host-Microbiome Factors in Cardiovascular Disease, Max Delbruck Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany
| | - Pietro Vernazza
- Division of Infectious Diseases and Hospital Epidemiology, Cantonal Hospital St. Gallen, St. Gallen, Switzerland
| | - Carmen Scheibenbogen
- Institute for Medical Immunology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Sofia K Forslund
- Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.,Experimental and Clinical Research Center, A Joint Cooperation of Max-Delbrück Center for Molecular Medicine and Charité-Universitätsmedizin Berlin, Berlin, Germany.,Host-Microbiome Factors in Cardiovascular Disease, Max Delbruck Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany.,European Molecular Biology Laboratory, Structural and Computational Biology Unit, Heidelberg, Germany
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23
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Nelson MJ, Buckley JD, Thomson RL, Bellenger CR, Davison K. Markers of Cardiac Autonomic Function During Consecutive Day Peak Exercise Tests in People With Myalgic Encephalomyelitis/Chronic Fatigue Syndrome. Front Physiol 2022; 12:771899. [PMID: 34970156 PMCID: PMC8713453 DOI: 10.3389/fphys.2021.771899] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 11/11/2021] [Indexed: 11/15/2022] Open
Abstract
Patients with Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS) have been shown to exhibit altered ventilatory characteristics on the second of two progressive maximal cardiopulmonary exercise tests (CPET) performed on consecutive days. However, maximal exercise can exacerbate symptoms for ME/CFS patients and cause significant post-exertional malaise. Assessment of heart rate (HR) parameters known to track post-exertional fatigue may represent more effective physiological markers of the condition and could potentially negate the need for maximal exercise testing. Sixteen ME/CFS patients and 10 healthy controls underwent a sub-maximal warm-up followed by CPET on two consecutive days. Ventilation, ratings of perceived exertion, work rate (WR) and HR parameters were assessed throughout on both days. During sub-maximal warm-up, a time effect was identified for the ratio of low frequency to high frequency power of HR variability (p=0.02) during sub-maximal warm-up, and for HR at ventilatory threshold (p=0.03), with both being higher on Day Two of testing. A significant group (p<0.01) effect was identified for a lower post-exercise HR recovery (HRR) in ME/CFS patients. Receiver operator characteristic curve analysis of HRR revealed an area under the curve of 74.8% (p=0.02) on Day One of testing, with a HRR of 34.5bpm maximising sensitivity (63%) and specificity (40%) suggesting while HRR values are altered in ME/CFS patients, low sensitivity and specificity limit its potential usefulness as a biomarker of the condition.
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Affiliation(s)
- Maximillian J Nelson
- Alliance for Research in Exercise, Nutrition and Activity (ARENA), UniSA Allied Health and Human Performance, University of South Australia, Adelaide, SA, Australia
| | - Jonathan D Buckley
- Alliance for Research in Exercise, Nutrition and Activity (ARENA), UniSA Allied Health and Human Performance, University of South Australia, Adelaide, SA, Australia
| | - Rebecca L Thomson
- Alliance for Research in Exercise, Nutrition and Activity (ARENA), UniSA Allied Health and Human Performance, University of South Australia, Adelaide, SA, Australia.,Adelaide Medical School and Robinson Research Institute, University of Adelaide, Adelaide, SA, Australia
| | - Clint R Bellenger
- Alliance for Research in Exercise, Nutrition and Activity (ARENA), UniSA Allied Health and Human Performance, University of South Australia, Adelaide, SA, Australia
| | - Kade Davison
- Alliance for Research in Exercise, Nutrition and Activity (ARENA), UniSA Allied Health and Human Performance, University of South Australia, Adelaide, SA, Australia
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24
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Nelson T, Zhang LX, Guo H, Nacul L, Song X. Brainstem Abnormalities in Myalgic Encephalomyelitis/Chronic Fatigue Syndrome: A Scoping Review and Evaluation of Magnetic Resonance Imaging Findings. Front Neurol 2021; 12:769511. [PMID: 34975729 PMCID: PMC8718708 DOI: 10.3389/fneur.2021.769511] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 11/29/2021] [Indexed: 12/14/2022] Open
Abstract
Background: Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS) is a multisystem medical condition with heterogeneous symptom expression. Currently, there is no effective cure or treatment for the standard care of patients. A variety of ME/CFS symptoms can be linked to the vital life functions of the brainstem, the lower extension of the brain best known as the hub relaying information back and forth between the cerebral cortex and various parts of the body. Objective/Methods: Over the past decade, Magnetic Resonance Imaging (MRI) studies have emerged to understand ME/CFS with interesting findings, but there has lacked a synthesized evaluation of what has been found thus far regarding the involvement of the brainstem. We conducted this study to review and evaluate the recent MRI findings via a literature search of the MEDLINE database, from which 11 studies met the eligibility criteria. Findings: Data showed that MRI studies frequently reported structural changes in the white and gray matter. Abnormalities of the functional connectivity within the brainstem and with other brain regions have also been found. The studies have suggested possible mechanisms including astrocyte dysfunction, cerebral perfusion impairment, impaired nerve conduction, and neuroinflammation involving the brainstem, which may at least partially explain a substantial portion of the ME/CFS symptoms and their heterogeneous presentations in individual patients. Conclusions: This review draws research attention to the role of the brainstem in ME/CFS, helping enlighten future work to uncover the pathologies and mechanisms of this complex medical condition, for improved management and patient care.
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Affiliation(s)
- Todd Nelson
- Evaluation and Research, Surrey Memorial Hospital, Fraser Health, Surrey, BC, Canada
- Biomedical Physiology and Kinesiology, Simon Fraser University, Burnaby, BC, Canada
| | - Lan-Xin Zhang
- Evaluation and Research, Surrey Memorial Hospital, Fraser Health, Surrey, BC, Canada
- Department of Human Biology, Physiology, University of Toronto, Toronto, ON, Canada
| | - Hui Guo
- Evaluation and Research, Surrey Memorial Hospital, Fraser Health, Surrey, BC, Canada
- Department of Diagnostic Imaging, Tianjin Medical University General Hospital, Tianjin, China
| | - Luis Nacul
- Complex Chronic Diseases Program, BC Women's Hospital and Health Centre, Vancouver, BC, Canada
- Department of Clinical Research, Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Xiaowei Song
- Evaluation and Research, Surrey Memorial Hospital, Fraser Health, Surrey, BC, Canada
- Biomedical Physiology and Kinesiology, Simon Fraser University, Burnaby, BC, Canada
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25
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De Bellis A, Bellastella G, Pernice V, Cirillo P, Longo M, Maio A, Scappaticcio L, Maiorino MI, Bellastella A, Esposito K, Montoya JG. Hypothalamic-Pituitary Autoimmunity and Related Impairment of Hormone Secretions in Chronic Fatigue Syndrome. J Clin Endocrinol Metab 2021; 106:e5147-e5155. [PMID: 34254637 DOI: 10.1210/clinem/dgab429] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Indexed: 01/07/2023]
Abstract
CONTEXT Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a severe chronic illness that reduces the quality of life. A potential role of neuroendocrine autoimmune dysfunction has been hypothesized. OBJECTIVE This work aims to investigate the occurrence of antipituitary (APA) and antihypothalamic (AHA) antibodies and possible related hypothalamic/pituitary dysfunctions in ME/CSF patients. METHODS This is a case-control study conducted in a university hospital setting (Stanford, California, USA; and Naples, Italy). Thirty women with ME/CSF (group 1) diagnosed according to Fukuda, Canadian, and Institute of Medicine criteria, at Stanford University, were enrolled and compared with 25 age-matched healthy controls. APA and AHA were detected by immunofluorescence; moreover, we investigated hormonal secretions of anterior pituitary and respective target glands. APA and AHA titers both were assessed and the prevalence of pituitary hormone deficiencies was also investigated. RESULTS Patients in group 1 showed a high prevalence of AHA (33%) and APA (56%) and significantly lower levels of adrenocorticotropin (ACTH)/cortisol, and growth hormone (GH) peak/insulin-like growth factor-1 (IGF-1) vs controls (all AHA/APA negative). Patients in group 1A (13 patients positive at high titers, ≥ 1:32) showed ACTH/cortisol and GH peak/IGF-1 levels significantly lower and more severe forms of ME/CFS with respect to patients in group 1B (7 positive at middle/low titers, 1:16-1:8) and 1C (10 antibody-negative patients). CONCLUSION Both AHA and/or APA at high titers were associated with hypothalamic/pituitary dysfunction, suggesting that hypothalamic/pituitary autoimmunity may play an important role in the manifestations of ME/CFS, especially in its more severe forms.
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Affiliation(s)
- Annamaria De Bellis
- Unit of Andrology, University of Campania "Luigi Vanvitelli", Naples, Italy
- Department of Advanced Medical and Surgical Sciences, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Giuseppe Bellastella
- Department of Advanced Medical and Surgical Sciences, University of Campania "Luigi Vanvitelli", Naples, Italy
- Unit of Endocrinology and Metabolic Diseases, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Vlenia Pernice
- Department of Advanced Medical and Surgical Sciences, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Paolo Cirillo
- Department of Advanced Medical and Surgical Sciences, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Miriam Longo
- Department of Advanced Medical and Surgical Sciences, University of Campania "Luigi Vanvitelli", Naples, Italy
- Unit of Endocrinology and Metabolic Diseases, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Antonietta Maio
- Department of Advanced Medical and Surgical Sciences, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Lorenzo Scappaticcio
- Department of Advanced Medical and Surgical Sciences, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Maria Ida Maiorino
- Department of Advanced Medical and Surgical Sciences, University of Campania "Luigi Vanvitelli", Naples, Italy
- Unit of Endocrinology and Metabolic Diseases, University of Campania "Luigi Vanvitelli", Naples, Italy
| | | | - Katherine Esposito
- Department of Advanced Medical and Surgical Sciences, University of Campania "Luigi Vanvitelli", Naples, Italy
- Unit of Diabetes, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - José G Montoya
- Department of Medicine, Division of Infectious Diseases and Geographic Medicine; Institute for Immunity, Transplantation and Infection, Stanford University School of Medicine, Stanford, California, USA
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26
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Impact of Life Stressors on Myalgic Encephalomyelitis/Chronic Fatigue Syndrome Symptoms: An Australian Longitudinal Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph182010614. [PMID: 34682360 PMCID: PMC8535742 DOI: 10.3390/ijerph182010614] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 10/05/2021] [Accepted: 10/06/2021] [Indexed: 11/29/2022]
Abstract
(1) Background: Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS) is a complex, multifaceted illness. The pathomechanism, severity and progression of this illness is still being investigated. Stressors have been implicated in symptom exacerbation for ME/CFS, however, there is limited information for an Australian ME/CFS cohort. The aim of this study was to assess the potential effect of life stressors including changes in work, income, or family scenario on symptom severity in an Australian ME/CFS cohort over five months; (2) Methods: Australian residents with ME/CFS responded to questions relating to work, income, living arrangement, access to healthcare and support services as well as symptoms experienced; (3) Results: thirty-six ME/CFS patients (age: 41.25 ± 12.14) completed all questionnaires (response rate 83.7%). Muscle pain and weakness, orthostatic intolerance and intolerance to extreme temperatures were experienced and fluctuated over time. Sleep disturbances were likely to present as severe. Work and household income were associated with worsened cognitive, gastrointestinal, body pain and sleep symptoms. Increased access to healthcare services was associated with improved symptom presentation; (4) Conclusions: life stressors such as work and financial disruptions may significantly contribute to exacerbation of ME/CFS symptoms. Access to support services correlates with lower symptom scores.
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27
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Mantovani E, Mariotto S, Gabbiani D, Dorelli G, Bozzetti S, Federico A, Zanzoni S, Girelli D, Crisafulli E, Ferrari S, Tamburin S. Chronic fatigue syndrome: an emerging sequela in COVID-19 survivors? J Neurovirol 2021; 27:631-637. [PMID: 34341960 PMCID: PMC8328351 DOI: 10.1007/s13365-021-01002-x] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Revised: 07/06/2021] [Accepted: 07/13/2021] [Indexed: 12/23/2022]
Abstract
SARS-CoV-2 survivors may report persistent symptoms that resemble myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS). We explored (a) ME/CFS-like symptom prevalence and (b) whether axonal, inflammatory, and/or lung changes may contribute to ME/CFS-like symptoms in SARS-CoV-2 survivors through clinical, neuropsychiatric, neuropsychological, lung function assessment, and serum neurofilament light chain, an axonal damage biomarker. ME/CFS-like features were found in 27% of our sample. ME/CFS-like group showed worse sleep quality, fatigue, pain, depressive symptoms, subjective cognitive complaints, Borg baseline dyspnea of the 6-min walking test vs. those without ME/CFS-like symptoms. These preliminary findings raise concern on a possible future ME/CFS-like pandemic in SARS-CoV-2 survivors.
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Affiliation(s)
- Elisa Mantovani
- Department of Neurosciences, Biomedicine and Movement Sciences, Neurology Section, University of Verona, Verona, Italy.
| | - Sara Mariotto
- Department of Neurosciences, Biomedicine and Movement Sciences, Neurology Section, University of Verona, Verona, Italy
| | - Daniele Gabbiani
- Department of Medicine, Internal Medicine Section D, University of Verona, Verona, Italy
| | - Gianluigi Dorelli
- Department of Medicine, Internal Medicine Section D, University of Verona, Verona, Italy
| | - Silvia Bozzetti
- Department of Neurosciences, Biomedicine and Movement Sciences, Neurology Section, University of Verona, Verona, Italy
| | - Angela Federico
- Department of Neurosciences, Biomedicine and Movement Sciences, Neurology Section, University of Verona, Verona, Italy
| | - Serena Zanzoni
- Centro Piattaforme Tecnologiche, University of Verona, Verona, Italy
| | - Domenico Girelli
- Department of Medicine, Internal Medicine Section D, University of Verona, Verona, Italy
| | - Ernesto Crisafulli
- Department of Medicine, Internal Medicine Section D, University of Verona, Verona, Italy
| | - Sergio Ferrari
- Department of Neurosciences, Biomedicine and Movement Sciences, Neurology Section, University of Verona, Verona, Italy
| | - Stefano Tamburin
- Department of Neurosciences, Biomedicine and Movement Sciences, Neurology Section, University of Verona, Verona, Italy.
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28
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Khanpour Ardestani S, Karkhaneh M, Stein E, Punja S, Junqueira DR, Kuzmyn T, Pearson M, Smith L, Olson K, Vohra S. Systematic Review of Mind-Body Interventions to Treat Myalgic Encephalomyelitis/Chronic Fatigue Syndrome. MEDICINA (KAUNAS, LITHUANIA) 2021; 57:652. [PMID: 34202826 PMCID: PMC8305555 DOI: 10.3390/medicina57070652] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 06/13/2021] [Accepted: 06/17/2021] [Indexed: 12/19/2022]
Abstract
Background and Objectives: Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS) is a chronic condition distinguished by disabling fatigue associated with post-exertional malaise, as well as changes to sleep, autonomic functioning, and cognition. Mind-body interventions (MBIs) utilize the ongoing interaction between the mind and body to improve health and wellbeing. Purpose: To systematically review studies using MBIs for the treatment of ME/CFS symptoms. Materials and Methods: MEDLINE, EMBASE, CINAHL, PsycINFO, and Cochrane CENTRAL were searched (inception to September 2020). Interventional studies on adults diagnosed with ME/CFS, using one of the MBIs in comparison with any placebo, standard of care treatment or waitlist control, and measuring outcomes relevant to the signs and symptoms of ME/CFS and quality of life were assessed for inclusion. Characteristics and findings of the included studies were summarized using a descriptive approach. Results: 12 out of 382 retrieved references were included. Seven studies were randomized controlled trials (RCTs) with one including three reports (1 RCT, 2 single-arms); others were single-arm trials. Interventions included mindfulness-based stress reduction, mindfulness-based cognitive therapy, relaxation, Qigong, cognitive-behavioral stress management, acceptance and commitment therapy and isometric yoga. The outcomes measured most often were fatigue severity, anxiety/depression, and quality of life. Fatigue severity and symptoms of anxiety/depression were improved in nine and eight studies respectively, and three studies found that MBIs improved quality of life. Conclusions: Fatigue severity, anxiety/depression and physical and mental functioning were shown to be improved in patients receiving MBIs. However, small sample sizes, heterogeneous diagnostic criteria, and a high risk of bias may challenge this result. Further research using standardized outcomes would help advance the field.
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Affiliation(s)
- Samaneh Khanpour Ardestani
- Department of Pediatrics, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, AB T6G 1C9, Canada; (S.K.A.); (S.P.); (D.R.J.)
| | | | - Eleanor Stein
- Department of Psychiatry, Faculty of Medicine, University of Calgary, Calgary, AB T2T4L8, Canada;
| | - Salima Punja
- Department of Pediatrics, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, AB T6G 1C9, Canada; (S.K.A.); (S.P.); (D.R.J.)
| | - Daniela R. Junqueira
- Department of Pediatrics, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, AB T6G 1C9, Canada; (S.K.A.); (S.P.); (D.R.J.)
| | - Tatiana Kuzmyn
- Patient Research Partner, Retired RN, Patient and Community Engagement Research (PaCER) Program Graduate, University of Calgary, Calgary, AB T2P 1B2, Canada;
| | - Michelle Pearson
- Patient Research Partner, MAPC, CEO Wunjo IS, Calgary, AB T3K 4N8, Canada;
| | - Laurie Smith
- Patient Research Partner, Calgary, AB 95060, Canada;
| | - Karin Olson
- Faculty of Nursing, University of Alberta, Edmonton, AB T6G 1C9, Canada;
| | - Sunita Vohra
- Departments of Pediatrics and Psychiatry, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, AB T6G 1C9, Canada
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29
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Recursive ensemble feature selection provides a robust mRNA expression signature for myalgic encephalomyelitis/chronic fatigue syndrome. Sci Rep 2021; 11:4541. [PMID: 33633136 PMCID: PMC7907358 DOI: 10.1038/s41598-021-83660-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Accepted: 01/27/2021] [Indexed: 12/14/2022] Open
Abstract
Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a chronic disorder characterized by disabling fatigue. Several studies have sought to identify diagnostic biomarkers, with varying results. Here, we innovate this process by combining both mRNA expression and DNA methylation data. We performed recursive ensemble feature selection (REFS) on publicly available mRNA expression data in peripheral blood mononuclear cells (PBMCs) of 93 ME/CFS patients and 25 healthy controls, and found a signature of 23 genes capable of distinguishing cases and controls. REFS highly outperformed other methods, with an AUC of 0.92. We validated the results on a different platform (AUC of 0.95) and in DNA methylation data obtained from four public studies on ME/CFS (99 patients and 50 controls), identifying 48 gene-associated CpGs that predicted disease status as well (AUC of 0.97). Finally, ten of the 23 genes could be interpreted in the context of the derailed immune system of ME/CFS.
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Cheshire A, Ridge D, Clark LV, White PD. Sick of the Sick Role: Narratives of What "Recovery" Means to People With CFS/ME. QUALITATIVE HEALTH RESEARCH 2021; 31:298-308. [PMID: 33176575 PMCID: PMC7750673 DOI: 10.1177/1049732320969395] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Little is known about what recovery means to those with chronic fatigue syndrome/myalgic encephalomyelitis, a poorly understood, disabling chronic health condition. To explore this issue, semi-structured interviews were conducted with patients reporting improvement (n = 9) and deterioration (n = 10) after a guided self-help intervention, and analyzed via "constant comparison." The meaning of recovery differed between participants-expectations for improvement and deployment of the sick role (and associated stigma) were key influences. While some saw recovery as complete freedom from symptoms, many defined it as freedom from the "sick role," with functionality prioritized. Others redefined recovery, reluctant to return to the lifestyle that may have contributed to their illness, or rejected the concept as unhelpful. Recovery is not always about eliminating all symptoms. Rather, it is a nexus between the reality of limited opportunities for full recovery, yet a strong desire to leave the illness behind and regain a sense of "normality."
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Affiliation(s)
| | - Damien Ridge
- University of Westminster, London,
United Kingdom
| | - Lucy V. Clark
- Queen Mary University of London,
London, United Kingdom
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Ghali A, Richa P, Lacout C, Gury A, Beucher AB, Homedan C, Lavigne C, Urbanski G. Epidemiological and clinical factors associated with post-exertional malaise severity in patients with myalgic encephalomyelitis/chronic fatigue syndrome. Lab Invest 2020; 18:246. [PMID: 32571354 PMCID: PMC7309998 DOI: 10.1186/s12967-020-02419-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 06/15/2020] [Indexed: 12/03/2022]
Abstract
Background Post-exertional malaise (PEM), the cardinal feature of myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS), occurs generally after exposure to a stressor. It is characterized by the worsening of ME/CFS symptoms and results in aggravating the course of the disease and the quality of life of patients. Due to its unpredictable onset, severity, and recovery time, identifying patients with higher risk for severe PEM would allow preventing or reducing its occurrence. We thus aimed at defining possible factors that could be associated with PEM severity. Methods Adult patients fulfilling ME international consensus criteria who attended the internal medicine department of University hospital Angers-France between October 2011 and December 2019 were included retrospectively. All patients were systematically hospitalized for an etiological workup and overall assessment. We reviewed their medical records for data related to the assessment: epidemiological data, fatigue features, clinical manifestations, and ME/CFS precipitants. PEM severity was appreciated by the Center for Disease Control self-reported questionnaire. The study population was classified into quartiles according to PEM severity scores. Analyses were performed with ordinal logistic regression to compare quartile groups. Results 197 patients were included. PEM severity was found to be positively associated with age at disease onset ≥ 32 years (OR 1.8 [95% CI 1.1–3.0] (p = 0.03)), recurrent infections during the course of the disease (OR 2.1 [95% CI 1.2–3.7] (p = 0.009)), and when ME/CFS was elicited by a gastrointestinal infectious precipitant (OR 5.7 [1.7–19.3] (p = 0.006)). Conclusion We identified some epidemiological and clinical features, which were positively associated with PEM severity in subsets of ME/CFS patients. This could help improving disease management and patients’ quality of life.
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What are the barriers to the SHAI being completed within a ME/CFS service? COGNITIVE BEHAVIOUR THERAPIST 2020. [DOI: 10.1017/s1754470x20000525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Abstract
Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a debilitating condition, characterised by unexplained and excessive fatigue, muscle pain and sleep disturbances. Health anxiety is common in ME/CFS and accurate measurement is essential in facilitating therapeutic gains. However, there are clinical concerns over the utility of the Short Health Anxiety Inventory (SHAI) in measuring health anxiety in this population. This study aims to use qualitative responses from two ex-service users and specialist health clinicians to explore the barriers to completing the SHAI within a specialist ME/CFS service. Qualitative responses from a focus group consisting of 15 specialist health professionals including occupational therapists, physiotherapists, dieticians, cognitive behavioural therapists, counsellors, clinical psychologists and assistant psychologists were transcribed and analysed for themes. Patient voices were represented by two former service users through individual semi-structured interviews on the telephone, which were recorded, transcribed and later analysed thematically. Clinicians and service user involvement agreed on core difficulties with the utility of the SHAI in the ME/CFS population. The timing of the SHAI being administered pre-diagnosis, the language of the SHAI and lack of context around the questionnaire were identified as barriers that were likely to contribute to the SHAI not being completed by service users. Sensitive and accurate measurement is required in order to retain patient engagement, which could further facilitate appropriate assessment and treatment of health anxiety and ME/CFS. Findings suggest that adaption of the SHAI is vital for use with ME/CFS.
Key learning aims
(1)
To understand the different barriers to completing the SHAI in a ME/CFS service.
(2)
To understand the implications of administering the SHAI to ME/CFS service users.
(3)
To learn from multi-disciplinary ME/CFS health professionals about perceived difficulties in administering the SHAI.
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Efficacy and Safety of Sipjeondaebo-Tang (Shi-Quan-Da-Bu-Tang) for Chronic Fatigue Syndrome: Study Protocol for a Multicenter, Randomized, Double-Blind, Placebo-Controlled Trial. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2020. [DOI: 10.1155/2020/4708374] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Background. Sipjeondaebo-tang (SDT), also known as Shi-Quan-Da-Bu-Tang, is a treatment for both qi and blood deficiency syndromes in traditional Korean medicine. It is also used to treat chronic fatigue syndrome (CFS) in Korea. Herein, we present the protocol for a study to assess the efficacy and safety of SDT for treating CFS. Methods. This will be a multicenter, randomized, double-blind, controlled trial with two parallel-treatment arms: an SDT group and a placebo group. Ninety-six patients with CFS aged between 19 and 65 years will be recruited from two hospitals in Korea. Participants will be randomly allocated at a ratio of 1 : 1 between the two groups. Participants will receive 3 g doses of SDT or placebo thrice daily for 8 weeks. Follow-up evaluations will be performed for 4–6 weeks after the drug administration period. The primary outcome will be the rating of participants’ fatigue symptoms using the Checklist Individual Strength questionnaire. Outcomes will be assessed at baseline, week 4, and week 8, as well as during follow-up. An efficacy evaluation and safety assessment will be performed. This study will be based on the Consolidated Standards of Reporting Trials (CONSORT) guidelines and the Standard Protocol Items: Recommendations for Interventional Trials (SPIRIT) 2013 statement. This protocol and informed consent guidelines were reviewed and approved by the institutional review board of Kyung Hee University Korean Medicine Hospital at Gangdong in the Republic of Korea (KHNMCOH 2017-06-004-001). The protocol was registered with the Clinical Research Information Service. Written informed consent will be obtained from all study participants prior to enrollment in the study. Results will be published in a peer-reviewed journal and presented at a scientific conference. Discussion. This study is expected to provide novel, accurate information regarding the 38 efficacy and safety of SDT for CFS in adults. Trial Registration. This trial is registered with https://cris.nih.go.kr; CRIS identifier (KCT0002684) registered on February 9, 2018.
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Musker M, McArthur A, Munn Z, Wong ML. Circulating leptin levels in patients with myalgic encephalomyelitis, chronic fatigue syndrome or fibromyalgia: a systematic review protocol. JBI Evid Synth 2020; 19:695-701. [PMID: 33136710 DOI: 10.11124/jbies-20-00125] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
OBJECTIVE The objective of the review is to evaluate circulating levels of leptin in people diagnosed with myalgic encephalomyelitis chronic fatigue syndrome or fibromyalgia syndrome and to investigate the differences compared with healthy controls. INTRODUCTION Myalgic encephalomyelitis chronic fatigue syndrome is a condition that has major symptoms, including self-reported fatigue, post-exertional malaise, and unexplained pain across the body. The widespread pain is measured in a systematic way and is often referred to as fibromyalgia. The two disorders have many similarities, but their association with leptin has indicated that leptin may affect the role of pro-inflammatory cytokines and symptom severity. INCLUSION CRITERIA This review will consider observational studies of varying study designs including prospective and retrospective cohort studies, case-control studies, time-series, and analytical cross-sectional studies that include both cases and healthy comparators. Cases will include a diagnosis of myalgic encephalomyelitis, chronic fatigue syndrome, and/or fibromyalgia. Controls are people without this diagnosis, usually healthy participants. Only studies published in English will be included due to limited resources for translation. METHODS This protocol will be reported based on the Preferred Reporting Items for Systematic Reviews and Meta-analysis (PRISMA) checklist and will follow the JBI methodology for systematic reviews of etiology and risk. A comprehensive search strategy will include PubMed, Embase, Scopus, Science Direct, and PsycINFO. Two reviewers will screen, critically appraise eligible articles, and extract data using a standardized data extraction tool informed by JBI SUMARI. The authors will complete a quantitative analysis that synthesizes findings across studies using pooled effect sizes and confidence intervals of the measures provided. SYSTEMATIC REVIEW REGISTRATION NUMBER PROSPERO CRD42020169903.
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Affiliation(s)
- Michael Musker
- Mental Health and Wellbeing, South Australian Health and Medical Research Institute, Adelaide, SA, Australia.,The Centre for Evidence-based Practice South Australia (CEPSA): A JBI Centre of Excellence, Adelaide, SA, Australia.,Department of Psychiatry, Flinders University, Adelaide, SA, Australia
| | - Alexa McArthur
- The Centre for Evidence-based Practice South Australia (CEPSA): A JBI Centre of Excellence, Adelaide, SA, Australia
| | - Zachary Munn
- The Centre for Evidence-based Practice South Australia (CEPSA): A JBI Centre of Excellence, Adelaide, SA, Australia
| | - Ma-Li Wong
- Mental Health and Wellbeing, South Australian Health and Medical Research Institute, Adelaide, SA, Australia.,Department of Psychiatry, Flinders University, Adelaide, SA, Australia.,Department of Psychiatry, Upstate University, New York, NY, USA
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Brown A, Jason LA. Meta-analysis investigating post-exertional malaise between patients and controls. J Health Psychol 2020; 25:2053-2071. [PMID: 29974812 PMCID: PMC7440642 DOI: 10.1177/1359105318784161] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Post-exertional malaise is either required or included in many previously proposed case definitions of myalgic encephalomyelitis/chronic fatigue syndrome. A meta-analysis of odds ratios (ORs; association between patient status and post-exertional malaise status) and a number of potential moderators (i.e. study-level characteristics) of effect size were conducted. Post-exertional malaise was found to be 10.4 times more likely to be associated with a myalgic encephalomyelitis/chronic fatigue syndrome diagnosis than with control status. Significant moderators of effect size included patient recruitment strategy and control selection. These findings suggest that post-exertional malaise should be considered a cardinal symptom of myalgic encephalomyelitis/chronic fatigue syndrome.
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Shin S, Park SJ, Hwang M. Effectiveness a herbal medicine ( Sipjeondaebo-tang) on adults with chronic fatigue syndrome: A randomized, double-blind, placebo-controlled trial. Integr Med Res 2020; 10:100664. [PMID: 33101925 PMCID: PMC7578262 DOI: 10.1016/j.imr.2020.100664] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 09/10/2020] [Accepted: 09/11/2020] [Indexed: 02/06/2023] Open
Abstract
Background Sipjeondaebo-tang (SJDBT, Shi-quan-da-bu-tang in Chinese) is a widely prescribed herbal medicine in traditional Korean medicine. This study aimed to evaluate the effectiveness and safety of SJDBT for treating chronic fatigue syndrome (CFS). Methods Ninety-six eligible participants were randomly allocated to either the SJDBT or placebo groups in a 1:1 ratio. Nine grams of SJDBT or placebo granules were administered to the patients for 8 weeks. The primary outcome was the response rate, defined as the proportion of participants with a score of 76 or higher in the Checklist Individual Strength assessment. Other measurements for fatigue severity, quality of life, and qi/blood/yin/yang deficiency were included. Safety was assessed throughout the trial. Results At week 8, the response rate did not significantly differ between the groups (SJDBT: 35.4%; placebo: 54.2%; P = 0.101, effect size [95% confidence interval] = 0.021 [-0.177, 0.218]). However, the scores of the visual analogue scale (P = 0.001, -0.327 [-0.506, -0.128]), Fatigue Severity Scale (P = 0.020, 0.480 [0.066, 0.889]), and Chalder fatigue scale (P = 0.004, -0.292 [-0.479, -0.101]) for the SJDBT group showed significant improvements in fatigue severity at the endpoint. Quality of life was not significantly different. Furthermore, SJDBT significantly ameliorated the severity of qi deficiency compared to that in the placebo group. No serious adverse events were observed. Conclusion This trial failed to show a significant improvement in fatigue severity, as assessed by the CIS-deprived response rate. It merely showed that SJDBT could alleviate the severity of fatigue and qi deficiency in patients with CFS. However, the further study is needed to confirm the details.
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Affiliation(s)
- Seungwon Shin
- National Agency for Development of Innovative Technologies in Korean Medicine, National Development Institute of Korean Medicine, Seoul, Republic of Korea.,Department of Clinical Korean Medicine, Graduate School, Kyung Hee University, Seoul, Republic of Korea
| | - Soo Jung Park
- Department of Sasang Constitutional Medicine, College of Korean Medicine, Woosuk University, Jeonju, Republic of Korea
| | - Minwoo Hwang
- Department of Sasang Constitutional Medicine, College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
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Almutairi B, Langley C, Crawley E, Thai NJ. Using structural and functional MRI as a neuroimaging technique to investigate chronic fatigue syndrome/myalgic encephalopathy: a systematic review. BMJ Open 2020; 10:e031672. [PMID: 32868345 PMCID: PMC7462162 DOI: 10.1136/bmjopen-2019-031672] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
OBJECTIVE This systematic review aims to synthesise and evaluate structural MRI (sMRI) and functional MRI (fMRI) studies in chronic fatigue syndrome/myalgic encephalomyelitis (CFS/ME). METHODS We systematically searched Medline and Ovid and included articles from 1991 (date of Oxford diagnostic criteria for CFS/ME) to first April 2019. Studies were selected by predefined inclusion and exclusion criteria. Two reviewers independently reviewed the titles and abstracts to determine articles for inclusion, full text and quality assessment for risk of bias. RESULTS sMRI studies report differences in CFS/ME brain anatomy in grey and white matter volume, ventricular enlargement and hyperintensities. Three studies report no neuroanatomical differences between CFS/ME and healthy controls. Task-based fMRI investigated working memory, attention, reward and motivation, sensory information processing and emotional conflict. The most consistent finding was CFS/ME exhibited increased activations and recruited additional brain regions. Tasks with increasing load or complexity produced decreased activation in task-specific brain regions. CONCLUSIONS There were insufficient data to define a unique neural profile or biomarker of CFS/ME. This may be due to inconsistencies in finding neuroanatomical differences in CFS/ME and the variety of different tasks employed by fMRI studies. But there are also limitations with neuroimaging. All brain region specific volumetric differences in CFS/ME were derived from voxel-based statistics that are biased towards group differences that are highly localised in space. fMRI studies demonstrated both increases and decreases in activation patterns in CFS/ME, this may be related to task demand. However, fMRI signal cannot differentiate between neural excitation and inhibition or function-specific neural processing. Many studies have small sample sizes and did not control for the heterogeneity of this clinical population. We suggest that with robust study design, subgrouping and larger sample sizes, future neuroimaging studies could potentially lead to a breakthrough in our understanding of the disease.
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Affiliation(s)
- Basim Almutairi
- Clinical Research and Imaging Centre, Bristol Medical School, Faculty of Health Sciences, University of Bristol, Bristol, Bristol, UK
- Radiology & Imaging Centre, King Saud Medical City, Saudi Ministry of Health, Riyadh, Saudi Arabia
| | - Christelle Langley
- The Herchel Smith Building for Brain and Mind Sciences, Department of Psychiatry, Cambridge University, Cambridge, Cambridgeshire, UK
| | - Esther Crawley
- Centre of Child and Adolescent Health, Bristol Medical School, Faculty of Health Sciences, University of Bristol, Bristol, UK
| | - Ngoc Jade Thai
- Clinical Research and Imaging Centre, Bristol Medical School, Faculty of Health Sciences, University of Bristol, Bristol, Bristol, UK
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Close S, Marshall-Gradisnik S, Byrnes J, Smith P, Nghiem S, Staines D. The Economic Impacts of Myalgic Encephalomyelitis/Chronic Fatigue Syndrome in an Australian Cohort. Front Public Health 2020; 8:420. [PMID: 32974259 PMCID: PMC7472917 DOI: 10.3389/fpubh.2020.00420] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Accepted: 07/13/2020] [Indexed: 11/13/2022] Open
Abstract
Objectives: This study aims to estimate direct and indirect health economic costs associated with government and out-of-pocket (OOP) expenditure based on health care service utilization and lost income of participants and carers, as reported by Australian Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS) patient survey participants. Design: A cost of illness study was conducted to estimate Australian cost data for individuals with a ME/CFS diagnosis as determined by the Canadian Consensus Criteria (CCC), International Consensus Criteria (ICC), and the 1994 CDC Criteria (Fukuda). Setting and participants: Survey participants identified from a research registry database provided self-report of expenditure associated with ME/CFS related healthcare across a 1-month timeframe between 2017 and 2019. Main outcome measures: ME/CFS related direct annual government health care costs, OOP health expenditure costs, indirect costs associated with lost income and health care service use patterns. Results: The mean annual cost of health care related expenditure and associated income loss among survey participants meeting diagnostic criteria for ME/CFS was estimated at $14.5 billion. For direct OOP and Government health care expenditure, high average costs were related to medical practitioner attendance, diagnostics, natural medicines, and device expenditure, with an average attendance of 10.6 referred attendances per annum and 12.1 GP visits per annum related specifically to managing ME/CFS. Conclusions: The economic impacts of ME/CFS in Australia are significant. Improved understanding of the illness pathology, diagnosis, and management, may reduce costs, improve patient prognosis and decrease the burden of ME/CFS in Australia.
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Affiliation(s)
- Shara Close
- Menzies School of Health Research, Charles Darwin University, Darwin, NT, Australia
| | - Sonya Marshall-Gradisnik
- National Centre for Neuroimmunology and Emerging Diseases, Griffith University, Gold Coast, QLD, Australia
| | - Joshua Byrnes
- Centre for Applied Health Economics, Griffith University, Nathan, QLD, Australia
| | - Peter Smith
- National Centre for Neuroimmunology and Emerging Diseases, Griffith University, Gold Coast, QLD, Australia
| | - Son Nghiem
- Centre for Applied Health Economics, Griffith University, Nathan, QLD, Australia
| | - Don Staines
- National Centre for Neuroimmunology and Emerging Diseases, Griffith University, Gold Coast, QLD, Australia
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Urteaga I, McKillop M, Elhadad N. Learning endometriosis phenotypes from patient-generated data. NPJ Digit Med 2020; 3:88. [PMID: 32596513 PMCID: PMC7314826 DOI: 10.1038/s41746-020-0292-9] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Accepted: 05/26/2020] [Indexed: 12/19/2022] Open
Abstract
Endometriosis is a systemic and chronic condition in women of childbearing age, yet a highly enigmatic disease with unresolved questions: there are no known biomarkers, nor established clinical stages. We here investigate the use of patient-generated health data and data-driven phenotyping to characterize endometriosis patient subtypes, based on their reported signs and symptoms. We aim at unsupervised learning of endometriosis phenotypes using self-tracking data from personal smartphones. We leverage data from an observational research study of over 4000 women with endometriosis that track their condition over more than 2 years. We extend a classical mixed-membership model to accommodate the idiosyncrasies of the data at hand, i.e., the multimodality and uncertainty of the self-tracked variables. The proposed method, by jointly modeling a wide range of observations (i.e., participant symptoms, quality of life, treatments), identifies clinically relevant endometriosis subtypes. Experiments show that our method is robust to different hyperparameter choices and the biases of self-tracking data (e.g., the wide variations in tracking frequency among participants). With this work, we show the promise of unsupervised learning of endometriosis subtypes from self-tracked data, as learned phenotypes align well with what is already known about the disease, but also suggest new clinically actionable findings. More generally, we argue that a continued research effort on unsupervised phenotyping methods with patient-generated health data via new mobile and digital technologies will have significant impact on the study of enigmatic diseases in particular, and health in general.
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Affiliation(s)
- Iñigo Urteaga
- Department of Applied Physics and Applied Mathematics, Columbia University, New York, NY 10027 USA
- Data Science Institute, Columbia University, New York, NY 10027 USA
| | - Mollie McKillop
- Department of Biomedical Informatics, Columbia University, New York, NY 10032 USA
| | - Noémie Elhadad
- Data Science Institute, Columbia University, New York, NY 10027 USA
- Department of Biomedical Informatics, Columbia University, New York, NY 10032 USA
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Abstract
The current COVID-19 pandemic is not just a medical and social tragedy, but within the threat of the outbreak looms the potential for a significant and persistent negative mental health impact, based on previous experience with other pandemics such as Severe Acute Respiratory Syndrome (SARS) in 2003 and the earlier H1N1 outbreak of 1918. This piece will highlight the links between depression and viral illnesses and explore important overlaps with myalgic encephalomyelitis/chronic fatigue syndrome, potentially implicating inflammatory mechanisms in those exposed to a range of viral agents. While containment of psychological distress currently focuses on social anxiety and quarantine measures, a second wave of psychological morbidity due to viral illness may be imminent.
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Huth TK, Eaton-Fitch N, Staines D, Marshall-Gradisnik S. A systematic review of metabolomic dysregulation in Chronic Fatigue Syndrome/Myalgic Encephalomyelitis/Systemic Exertion Intolerance Disease (CFS/ME/SEID). J Transl Med 2020; 18:198. [PMID: 32404171 PMCID: PMC7222338 DOI: 10.1186/s12967-020-02356-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Accepted: 04/25/2020] [Indexed: 02/07/2023] Open
Abstract
Background Chronic Fatigue Syndrome/Myalgic Encephalomyelitis/Systemic Exertion Intolerance Disease (CFS/ME/SEID) is a complex illness that has an unknown aetiology. It has been proposed that metabolomics may contribute to the illness pathogenesis of CFS/ME/SEID. In metabolomics, the systematic identification of measurable changes in small molecule metabolite products have been identified in cases of both monogenic and heterogenic diseases. Therefore, the aim of this systematic review was to evaluate if there is any evidence of metabolomics contributing to the pathogenesis of CFS/ME/SEID. Methods PubMed, Scopus, EBSCOHost (Medline) and EMBASE were searched using medical subject headings terms for Chronic Fatigue Syndrome, metabolomics and metabolome to source papers published from 1994 to 2020. Inclusion and exclusion criteria were used to identify studies reporting on metabolites measured in blood and urine samples from CFS/ME/SEID patients compared with healthy controls. The Joanna Briggs Institute Checklist was used to complete a quality assessment for all the studies included in this review. Results 11 observational case control studies met the inclusion criteria for this review. The primary outcome of metabolite measurement in blood samples of CFS/ME/SEID patients was reported in ten studies. The secondary outcome of urine metabolites was measured in three of the included studies. No studies were excluded from this review based on a low-quality assessment score, however there was inconsistency in the scientific research design of the included studies. Metabolites associated with the amino acid pathway were the most commonly impaired with significant results in seven out of the 10 studies. However, no specific metabolite was consistently impaired across all of the studies. Urine metabolite results were also inconsistent. Conclusion The findings of this systematic review reports that a lack of consistency with scientific research design provides little evidence for metabolomics to be clearly defined as a contributing factor to the pathogenesis of CFS/ME/SEID. Further research using the same CFS/ME/SEID diagnostic criteria, metabolite analysis method and control of the confounding factors that influence metabolite levels are required.
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Affiliation(s)
- Teilah Kathryn Huth
- National Centre for Neuroimmunology and Emerging Diseases, Menzies Health Institute, Griffith University, Gold Coast, Australia. .,School of Medicine, University of Notre Dame, Sydney, Australia.
| | - Natalie Eaton-Fitch
- National Centre for Neuroimmunology and Emerging Diseases, Menzies Health Institute, Griffith University, Gold Coast, Australia
| | - Donald Staines
- National Centre for Neuroimmunology and Emerging Diseases, Menzies Health Institute, Griffith University, Gold Coast, Australia
| | - Sonya Marshall-Gradisnik
- National Centre for Neuroimmunology and Emerging Diseases, Menzies Health Institute, Griffith University, Gold Coast, Australia
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Carr MJ, Ashcroft DM, White PD, Kapur N, Webb RT. Prevalence of comorbid mental and physical illnesses and risks for self-harm and premature death among primary care patients diagnosed with fatigue syndromes. Psychol Med 2020; 50:1156-1163. [PMID: 31131782 PMCID: PMC7253619 DOI: 10.1017/s0033291719001065] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 04/02/2019] [Accepted: 04/23/2019] [Indexed: 11/22/2022]
Abstract
BACKGROUND Fatigue syndromes (FSs) affect large numbers of individuals, yet evidence from epidemiological studies on adverse outcomes, such as premature death, is limited. METHODS Cohort study involving 385 general practices in England that contributed to the Clinical Practice Research Datalink (CPRD) with linked inpatient Hospital Episode Statistics (HES) and Office for National Statistics (ONS) cause of death information. A total of 10 477 patients aged 15 years and above, diagnosed with a FS during 2000-2014, were individually matched with up to 20 comparator patients without a history of having a FS. Prevalence ratios (PRs) were estimated to compare the FS and comparison cohorts on clinical characteristics. Adjusted hazard ratios (HRs) for subsequent adverse outcomes were estimated from stratified Cox regression models. RESULTS Among patients diagnosed with FSs, we found elevated baseline prevalence of: any psychiatric illness (PR 1.77; 95% CI 1.72-1.82), anxiety disorders (PR 1.92; 1.85-1.99), depression (PR 1.89; 1.83-1.96), psychotropic prescriptions (PR 1.68; 1.64-1.72) and comorbid physical illness (PR 1.28; 1.23-1.32). We found no significant differences in risks for: all-cause mortality (HR 0.99; 0.91-1.09), natural death (HR 0.99; 0.90-1.09), unnatural death (HR 1.00; 0.59-1.72) or suicide (HR 1.68; 0.78-3.63). We did, however, observe a significantly elevated non-fatal self-harm risk: HR 1.83; 1.56-2.15. CONCLUSIONS The absence of elevated premature mortality risk is reassuring. The raised prevalence of mental illness and increased non-fatal self-harm risk indicate a need for enhanced assessment and management of psychopathology associated with fatigue syndromes.
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Affiliation(s)
- Matthew J. Carr
- Division of Psychology and Mental Health, School of Health Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, ManchesterM13 9PL, UK
- NIHR Greater Manchester Patient Safety Translational Research Centre, ManchesterM13 9PL, UK
| | - Darren M. Ashcroft
- NIHR Greater Manchester Patient Safety Translational Research Centre, ManchesterM13 9PL, UK
- Division of Pharmacy and Optometry, Centre for Pharmacoepidemiology and Drug Safety, School of Health Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, ManchesterM13 9PT, UK
| | - Peter D. White
- Wolfson Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Nav Kapur
- Division of Psychology and Mental Health, School of Health Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, ManchesterM13 9PL, UK
- Greater Manchester Mental Health and Social Care Trust, Manchester, UK
| | - Roger T. Webb
- Division of Psychology and Mental Health, School of Health Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, ManchesterM13 9PL, UK
- NIHR Greater Manchester Patient Safety Translational Research Centre, ManchesterM13 9PL, UK
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43
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olde Hartman TC, Scheepers TP, Lucassen P, van Boven K. Do Women With Severe Persistent Fatigue Present With Fatigue at the Primary Care Consultation? ZEITSCHRIFT FUR PSYCHOLOGIE-JOURNAL OF PSYCHOLOGY 2020. [DOI: 10.1027/2151-2604/a000402] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Abstract. Recent studies have shown underdiagnosis of severe persistent fatigue in primary care. To study how patients with severe persistent fatigue present in primary care and whether they differ from patients with less severe fatigue and patients with no fatigue. A 4-year retrospective database study combined with a questionnaire, including all female patients 25–50 years ( n = 917) who are registered in one primary care group practice. Based on the results of a validated self-administered questionnaire, patients were divided into three groups: patients with severe persistent fatigue ( n = 42), patients with fatigue ( n = 174), and patients with no fatigue ( n = 246). Data on frequency of consulting, reason for encounter, and diagnoses from 2009 to 2013 were obtained from the electronic medical health record. Data were analyzed using odds ratios. Women with severe persistent fatigue more often were unemployed and had lower education. They visited the general practitioners (GP) more often than other women. However, more than half of the women with severe persistent fatigue did not visit their GP with fatigue as reason for encounter at all during the 4 years of study. A minority of the women with severe persistent fatigue received a psychological diagnosis or social diagnosis (36% and 19%, respectively) during these 4 years. Underdiagnosis of severe persistent fatigue is partly a consequence of patients not presenting or reporting this to their GP. The reasons for this behavior are not clear.
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Affiliation(s)
- Tim C. olde Hartman
- Department of Primary and Community Care, Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands
| | - Tomas P. Scheepers
- Department of Primary and Community Care, Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands
| | - Peter Lucassen
- Department of Primary and Community Care, Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands
| | - Kees van Boven
- Department of Primary and Community Care, Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands
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44
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Sandler CX, Lloyd AR. Chronic fatigue syndrome: progress and possibilities. Med J Aust 2020; 212:428-433. [DOI: 10.5694/mja2.50553] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Carolina X Sandler
- UNSW Fatigue ClinicUNSW Sydney NSW
- Queensland University of Technology Brisbane QLD
| | - Andrew R Lloyd
- Kirby Institute for Infection and Immunity in SocietyUNSW Sydney NSW
- UNSW Medicine Sydney NSW
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45
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Vugts MA, Zedlitz AM, Joosen MC, Vrijhoef HJ. Serious Gaming During Multidisciplinary Rehabilitation for Patients With Chronic Pain or Fatigue Symptoms: Mixed Methods Design of a Realist Process Evaluation. J Med Internet Res 2020; 22:e14766. [PMID: 32149720 PMCID: PMC7091046 DOI: 10.2196/14766] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 10/31/2019] [Accepted: 12/15/2019] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Serious gaming could support patients in learning to cope with chronic pain or functional somatic syndromes and reduce symptom burdens. OBJECTIVE To realize this potential, insight is needed into how, why, for whom, and when it works in actual treatment circumstances. METHODS Following a realist approach, process evaluations were performed before, during, and after a two-armed, natural quasi-experiment (n=275). A group of patients with interfering chronic pain or fatigue symptoms received a short additional blended mindfulness-based serious gaming intervention during a multidisciplinary rehabilitation program. A control group only received the regular rehabilitation program. During two sessions before and one session after the experiment, expectations about serious gaming processes were discussed in focus groups with local care providers, implementers, and experts. Patients participated in a survey (n=114) and in semistructured interviews (n=10). The qualitative data were used to develop tentative expectations about aspects of serious gaming that, in certain patients and circumstances, trigger mechanisms of learning and health outcome change. Hypotheses about indicative quantitative data patterns for tentative expectations were formulated before inspecting, describing, and analyzing-with regression models-routinely collected clinical outcome data. An updated program theory was formulated after mixing the qualitative and quantitative results. RESULTS Qualitative data showed that a subset of patients perceived improvement of their self-awareness in moments of daily social interactions. These results were explained by patients, who played the serious game LAKA, as a "confrontation with yourself," which reflected self-discrepancies. Important characteristics of serious gaming in the study's context included innovation factors of relative advantage with experiential learning opportunity, compatibility with the treatment approach, and the limited flexibility in regard to patient preferences. Perceived patient factors included age and style of coping with stress or pain. Learning perceptions could also depend on care provider role-taking and the planning and facilitating (ie, local organization) of serious gaming introduction and feedback sessions in small groups of patients. Quantitative data showed very small average differences between the study groups in self-reported depression, pain, and fatigue changes (-.07<beta<-.17, all 95% CI upper bounds <0), which were mediated by small group differences in mindfulness (beta=.26, 95% CI .02-.51). Mindfulness changes were positively associated with patient involvement in serious gaming (n=114, beta=.36, P=.001). Acceptance of serious gaming was lower in older patients. Average health outcome changes went up to a medium size in patients that reported lower active coping with stress and lower pain coping before serious gaming. Mindfulness changes and gaming acceptance perceptions covaried with group structure and immediate feedback sessions after serious gaming. CONCLUSIONS This study developed transferable insight into how and why serious gaming can facilitate additional learning about coping in order to reduce burdens of chronic pain or fatigue symptoms in certain patients and in actual treatment circumstances. Future studies are needed to continue the development of this fallible theory. Such research will further support decisions about using, designing, allocating, and tailoring serious gaming to optimize important patient health benefits. TRIAL REGISTRATION Netherlands Trial Register NTR6020; https://www.trialregister.nl/trial/5754.
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Affiliation(s)
- Miel Ap Vugts
- Tranzo Scientific Centre for Care and Wellbeing, Tilburg School of Social and Behavioral Sciences, Tilburg University, Tilburg, Netherlands
| | - Aglaia Mee Zedlitz
- Leiden Institute for Brain and Cognition, Department of Health, Medical and Neuropsychology, Leiden University, Leiden, Netherlands
| | - Margot Cw Joosen
- Tranzo Scientific Centre for Care and Wellbeing, Tilburg School of Social and Behavioral Sciences, Tilburg University, Tilburg, Netherlands.,Department of Human Resource Studies, Tilburg School of Social and Behavioral Sciences, Tilburg University, Tilburg, Netherlands
| | - Hubertus Jm Vrijhoef
- Department of Patient & Care, Maastricht University Medical Center, Maastricht, Netherlands.,Panaxea, Amsterdam, Netherlands
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46
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Lim EJ, Ahn YC, Jang ES, Lee SW, Lee SH, Son CG. Systematic review and meta-analysis of the prevalence of chronic fatigue syndrome/myalgic encephalomyelitis (CFS/ME). J Transl Med 2020; 18:100. [PMID: 32093722 PMCID: PMC7038594 DOI: 10.1186/s12967-020-02269-0] [Citation(s) in RCA: 193] [Impact Index Per Article: 48.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2020] [Accepted: 02/14/2020] [Indexed: 01/31/2023] Open
Abstract
Background Chronic fatigue syndrome/myalgic encephalomyelitis (CFS/ME) has been emerging as a significant health issue worldwide. This study aimed to systemically assess the prevalence of CFS/ME in various aspects of analyses for precise assessment. Methods We systematically searched prevalence of CFS/ME from public databases from 1980 to December 2018. Data were extracted according to 7 categories for analysis: study participants, gender and age of the participants, case definition, diagnostic method, publication year, and country of the study conducted. Prevalence data were collected and counted individually for studies adopted various case definitions. We analyzed and estimated prevalence rates in various angles: average prevalence, pooled prevalence and meta-analysis of all studies. Results A total of 1291 articles were initially identified, and 45 articles (46 studies, 56 prevalence data) were selected for this study. Total 1085,976 participants were enrolled from community-based survey (540,901) and primary care sites (545,075). The total average prevalence was 1.40 ± 1.57%, pooled prevalence 0.39%, and meta-analysis 0.68% [95% CI 0.48–0.97]. The prevalence rates were varied by enrolled participants (gender, study participants, and population group), case definitions and diagnostic methods. For example, in the meta-analysis; women (1.36% [95% CI 0.48–0.97]) vs. men (0.86% [95% CI 0.48–0.97]), community-based samples (0.76% [95% CI 0.53–1.10]) vs. primary care sites (0.63% [95% CI 0.37–1.10]), adults ≥ 18 years (0.65% [95% CI 0.43–0.99]) vs. children and adolescents < 18 years (0.55% [95% CI 0.22–1.35]), CDC-1994 (0.89% [95% CI 0.60–1.33]) vs. Holmes (0.17% [95% CI 0.06–0.49]), and interviews (1.14% [95% CI 0.76–1.72]) vs. physician diagnosis (0.09% [95% CI 0.05–0.13]), respectively. Conclusions This study comprehensively estimated the prevalence of CFS/ME; 0.89% according to the most commonly used case definition CDC-1994, with women approximately 1.5 to 2 folds higher than men in all categories. However, we observed the prevalence rates are widely varied particularly by case definitions and diagnostic methods. An objective diagnostic tool is urgently required for rigorous assessment of the prevalence of CFS/ME.
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Affiliation(s)
- Eun-Jin Lim
- Institute of Bioscience and Integrative Medicine, Department of Korean Medicine, Daejeon University, 62 Daehak-ro, Dong-gu, Daejeon, Republic of Korea
| | - Yo-Chan Ahn
- Department of Health Service Management, Daejeon University, 96-3 Yongun-dong, Dong-gu, Daejeon, 300-716, Republic of Korea
| | - Eun-Su Jang
- Institute of Bioscience and Integrative Medicine, Department of Korean Medicine, Daejeon University, 62 Daehak-ro, Dong-gu, Daejeon, Republic of Korea
| | - Si-Woo Lee
- Division of Future Medicine, Korean Institute of Oriental Medicine, Yuseong-daero, 1672, Daejeon, Republic of Korea
| | - Su-Hwa Lee
- The Catholic University of Korea, Daejeon St. Mary Hospital, 64, Daeheung-ro, Jung-gu, Daejeon, Republic of Korea
| | - Chang-Gue Son
- Institute of Bioscience and Integrative Medicine, Department of Korean Medicine, Daejeon University, 62 Daehak-ro, Dong-gu, Daejeon, Republic of Korea.
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47
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Eaton-Fitch N, Johnston SC, Zalewski P, Staines D, Marshall-Gradisnik S. Health-related quality of life in patients with myalgic encephalomyelitis/chronic fatigue syndrome: an Australian cross-sectional study. Qual Life Res 2020; 29:1521-1531. [PMID: 31970624 PMCID: PMC7253372 DOI: 10.1007/s11136-019-02411-6] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/30/2019] [Indexed: 11/28/2022]
Abstract
BACKGROUND Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a serious and debilitating disorder associated with significant disruptions in daily life including. This study aimed to examine the impact of sociodemographic and patient symptom characteristics on health-related quality of life (HRQoL) of Australians with ME/CFS. METHODS Self-reported data collected from 480 individuals diagnosed with ME/CFS were obtained between August 2014 and August 2018. This cross-sectional survey analysed sociodemographic, symptom characteristics and HRQoL according to the 36-Item Health Survey (SF-36). Multivariate linear regression models were used to determine ME/CFS symptoms associated with eight domains of HRQoL. RESULTS Reported HRQoL was significantly impaired in ME/CFS patients across all domains compared with the general population. Scores were the lowest for physical role (4.11 ± 15.07) and energy/fatigue (13.54 ± 13.94). Associations with females, higher body mass index (BMI), employment status, cognitive difficulties, sensory disturbances and cardiovascular symptoms were observed in the physical functioning domain. Impaired pain domain scores were associated with high BMI, annual visits to their general practitioner, flu-like symptoms and fluctuations in body temperature. Reduced well-being scores were associated with smoking status, psychiatric comorbidity, cognitive difficulties, sleep disturbances and gastrointestinal difficulties. CONCLUSION This study provides evidence that ME/CFS has a profound and negative impact on HRQoL in an Australian cohort.
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Affiliation(s)
- N Eaton-Fitch
- School of Medical Science, Griffith University, Gold Coast, Australia. .,National Centre for Neuroimmunology and Emerging Diseases, Menzies Health Institute Queensland, Griffith University, Gold Coast, Australia. .,Consortium Health International for Myalgic Encephalomyelitis, Griffith University, Gold Coast, Australia.
| | - S C Johnston
- School of Medical Science, Griffith University, Gold Coast, Australia.,National Centre for Neuroimmunology and Emerging Diseases, Menzies Health Institute Queensland, Griffith University, Gold Coast, Australia.,Consortium Health International for Myalgic Encephalomyelitis, Griffith University, Gold Coast, Australia
| | - P Zalewski
- Consortium Health International for Myalgic Encephalomyelitis, Griffith University, Gold Coast, Australia.,Department of Hygiene, Epidemiology and Ergonomy, Uniwersytet Mikolaja Kopernika Collegium Medicum, Bydgoszcz, Poland
| | - D Staines
- National Centre for Neuroimmunology and Emerging Diseases, Menzies Health Institute Queensland, Griffith University, Gold Coast, Australia.,Consortium Health International for Myalgic Encephalomyelitis, Griffith University, Gold Coast, Australia
| | - S Marshall-Gradisnik
- National Centre for Neuroimmunology and Emerging Diseases, Menzies Health Institute Queensland, Griffith University, Gold Coast, Australia.,Consortium Health International for Myalgic Encephalomyelitis, Griffith University, Gold Coast, Australia
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48
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Meester I, Rivera-Silva GF, González-Salazar F. Immune System Sex Differences May Bridge the Gap Between Sex and Gender in Fibromyalgia. Front Neurosci 2020; 13:1414. [PMID: 32009888 PMCID: PMC6978848 DOI: 10.3389/fnins.2019.01414] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Accepted: 12/16/2019] [Indexed: 12/19/2022] Open
Abstract
The fibromyalgia syndrome (FMS) is characterized by chronic widespread pain, sleep disturbances, fatigue, and cognitive alterations. A limited efficacy of targeted treatment and a high FMS prevalence (2–5% of the adult population) sums up to high morbidity. Although, altered nociception has been explained with the central sensitization hypothesis, which may occur after neuropathy, its molecular mechanism is not understood. The marked female predominance among FMS patients is often attributed to a psychosocial predisposition of the female gender, but here we will focus on sex differences in neurobiological processes, specifically those of the immune system, as various immunological biomarkers are altered in FMS. The activation of innate immune sensors is compatible with a neuropathy or virus-induced autoimmune diseases. Considering sex differences in the immune system and the clustering of FMS with autoimmune diseases, we hypothesize that the female predominance in FMS is due to a neuropathy-induced autoimmune pathophysiology. We invite the scientific community to verify the autoimmune hypothesis for FMS.
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Affiliation(s)
- Irene Meester
- Laboratory of Tissue Engineering and Regenerative Medicine, Basic Sciences Department, University of Monterrey, San Pedro Garza García, Mexico
| | - Gerardo Francisco Rivera-Silva
- Laboratory of Tissue Engineering and Regenerative Medicine, Basic Sciences Department, University of Monterrey, San Pedro Garza García, Mexico
| | - Francisco González-Salazar
- Laboratory of Tissue Engineering and Regenerative Medicine, Basic Sciences Department, University of Monterrey, San Pedro Garza García, Mexico.,Laboratory of Cellular Physiology, Northeast Center of Research, Mexican Institute of Social Security, Monterrey, Mexico
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49
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Kim DY, Lee JS, Park SY, Kim SJ, Son CG. Systematic review of randomized controlled trials for chronic fatigue syndrome/myalgic encephalomyelitis (CFS/ME). J Transl Med 2020; 18:7. [PMID: 31906979 PMCID: PMC6943902 DOI: 10.1186/s12967-019-02196-9] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Accepted: 12/24/2019] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Although medical requirements are urgent, no effective intervention has been proven for chronic fatigue syndrome/myalgic encephalomyelitis (CFS/ME). To facilitate the development of new therapeutics, we systematically reviewed the randomized controlled trials (RCTs) for CFS/ME to date. METHODS RCTs targeting CFS/ME were surveyed using two electronic databases, PubMed and the Cochrane library, through April 2019. We included only RCTs that targeted fatigue-related symptoms, and we analyzed the data in terms of the characteristics of the participants, case definitions, primary measurements, and interventions with overall outcomes. RESULTS Among 513 potentially relevant articles, 55 RCTs met our inclusion criteria; these included 25 RCTs of 22 different pharmacological interventions, 28 RCTs of 18 non-pharmacological interventions and 2 RCTs of combined interventions. These studies accounted for a total of 6316 participants (1568 males and 4748 females, 5859 adults and 457 adolescents). CDC 1994 (Fukuda) criteria were mostly used for case definitions (42 RCTs, 76.4%), and the primary measurement tools included the Checklist Individual Strength (CIS, 36.4%) and the 36-item Short Form health survey (SF-36, 30.9%). Eight interventions showed statistical significance: 3 pharmacological (Staphypan Berna, Poly(I):poly(C12U) and CoQ10 + NADH) and 5 non-pharmacological therapies (cognitive-behavior-therapy-related treatments, graded-exercise-related therapies, rehabilitation, acupuncture and abdominal tuina). However, there was no definitely effective intervention with coherence and reproducibility. CONCLUSIONS This systematic review integrates the comprehensive features of previous RCTs for CFS/ME and reflects on their limitations and perspectives in the process of developing new interventions.
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Affiliation(s)
- Do-Young Kim
- Korean Medical College of Daejeon University, 62, Daehak-ro, Dong-gu, Daejeon, Republic of Korea
| | - Jin-Seok Lee
- Institute of Traditional Medicine and Bioscience, Dunsan Oriental Hospital of Daejeon University, 75, Daedeok-daero 176, Seo-gu, Daejeon, Republic of Korea
| | - Samuel-Young Park
- Korean Medical College of Daejeon University, 62, Daehak-ro, Dong-gu, Daejeon, Republic of Korea
| | - Soo-Jin Kim
- Korean Medical College of Daejeon University, 62, Daehak-ro, Dong-gu, Daejeon, Republic of Korea
| | - Chang-Gue Son
- Institute of Traditional Medicine and Bioscience, Dunsan Oriental Hospital of Daejeon University, 75, Daedeok-daero 176, Seo-gu, Daejeon, Republic of Korea.
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50
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Lee JS, Jeon YJ, Park SY, Son CG. An Adrenalectomy Mouse Model Reflecting Clinical Features for Chronic Fatigue Syndrome. Biomolecules 2020; 10:E71. [PMID: 31906307 PMCID: PMC7023174 DOI: 10.3390/biom10010071] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 12/24/2019] [Accepted: 12/29/2019] [Indexed: 12/14/2022] Open
Abstract
Chronic fatigue syndrome (CFS) is one of the most intractable diseases and is characterized by severe central fatigue that impairs even daily activity. To date, the pathophysiological mechanisms are uncertain and no therapies exist. Therefore, a proper animal model reflecting the clinical features of CFS is urgently required. We compared two CFS animal models most commonly used, by injection with lipopolysaccharide (LPS from Escherichia coli O111:B4) or polyinosinic: polycytidylic acid (poly I:C), along with bilateral adrenalectomy (ADX) as another possible model. Both LPS- and poly I:C-injected mice dominantly showed depressive behaviors, while ADX led to fatigue-like performances with high pain sensitivity. In brain tissues, LPS injection notably activated microglia and the 5-hydroxytryptamine (HT)1A receptor in the prefrontal cortex and hippocampus. Poly I:C-injection also remarkably activated the 5-HT transporter and 5-HT1A receptor with a reduction in serotonin levels in the brain. ADX particularly activated astrocytes and transforming growth factor beta (TGF-β) 1 in all brain regions. Our results revealed that LPS and poly I:C animal models approximate depressive disorder more closely than CFS. We suggest that ADX is a possible method for establishing a mouse model of CFS reflecting clinical features, especially in neuroendocrine system.
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Affiliation(s)
- Jin-Seok Lee
- Institute of Traditional Medicine and Bioscience, Dunsan Hospital of Daejeon University, Daejeon 34323, Korea; (J.-S.L.); (Y.-J.J.)
| | - Yoo-Jin Jeon
- Institute of Traditional Medicine and Bioscience, Dunsan Hospital of Daejeon University, Daejeon 34323, Korea; (J.-S.L.); (Y.-J.J.)
| | - Samuel-Young Park
- Korean Medical College of Daejeon University, 62, Daehak-ro, Dong-gu, Daejeon 34323, Korea;
| | - Chang-Gue Son
- Institute of Traditional Medicine and Bioscience, Dunsan Hospital of Daejeon University, Daejeon 34323, Korea; (J.-S.L.); (Y.-J.J.)
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