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Hadžibajramović E, Schaufeli W, De Witte H. The ultra-short version of the Burnout Assessment Tool (BAT4)-development, validation, and measurement invariance across countries, age and gender. PLoS One 2024; 19:e0297843. [PMID: 38394265 PMCID: PMC10889892 DOI: 10.1371/journal.pone.0297843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 01/13/2024] [Indexed: 02/25/2024] Open
Abstract
Given that burnout is a major problem in many societies and that employers are legally obliged to act in preventing job stress, there is a need of validated and reliable short self-report instruments. The Burnout Assessment Tool (BAT) is developed to measure burnout as a syndrome with four core components (exhaustion, mental distance, cognitive and emotional impairment). So far, the BAT was tested in over 40 studies with encouraging results. Although a short, 12-item version of the BAT exists, there is need for an ultra-short version with even less items. The overall aim is to develop an ultra-short 4-item version of the BAT (BAT4) and to evaluate its construct validity using Rasch analysis in samples from various countries along with its measurement invariance regarding country, age and gender. The BAT4 was developed using mixed methods, i.e. combining the results from a Rasch analysis, a subject matter analysis and expert judgements. Construct validity was tested on data from national representative samples from eight countries (the Netherlands, Belgium (Flanders), Austria, Czech Republic, Finland, Germany, Ireland, and Japan) and in a pooled sample combing the data from all eight countries. Differential item functioning regarding age, gender and country was investigated. The BAT4 fulfilled all the criteria required by the Rasch measurement model to constitute a valid measure in the pooled and country specific samples, except Austria and Japan. In the pooled sample, measurement invariance between the eight countries as well as between gender and age was found. Analyses within different countries showed occasional gender and age DIF for some items. The results were promising regarding BAT4's construct validity and measurement invariance. Although the BAT4 includes only four items, its content coverage is acceptable. The BAT4 can be used as a short screening instrument for burnout complaints at the group or organisational level.
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Affiliation(s)
- Emina Hadžibajramović
- Institute of Stress Medicine, Region Västra Götaland, Gothenburg, Sweden
- School of Public Health and Community Medicine, Institute of Medicine, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Wilmar Schaufeli
- O2L, Research group Work, Organizational and Personnel Psychology (WOPP), KU Leuven, Leuven, Belgium
- Department of Psychology, Utrecht University, Utrecht, Netherlands
| | - Hans De Witte
- O2L, Research group Work, Organizational and Personnel Psychology (WOPP), KU Leuven, Leuven, Belgium
- Optentia Research Unit, North-West University, Potchefstroom, South Africa
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2
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Titova NV, Bezdolny YN, Katunina EA. [Asthenia, mental fatigue and cognitive dysfunction]. Zh Nevrol Psikhiatr Im S S Korsakova 2023; 123:38-47. [PMID: 37315240 DOI: 10.17116/jnevro202312305138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Conditions associated with asthenia are usually characterized by increased fatigue, impaired activities of daily living and decreased productivity. In clinical practice it is important to distinguish between idiopathic chronic fatigue (primary or functional asthenia) and chronic fatigue syndrome (CFS). Fatigue can also be classified by neuromuscular and/or cognitive and mental fatigue. The article discusses the neuroanatomical basis and focuses on the neurocognitive theory of pathological fatigue. In addition the relationship between mental stress, fatigue and cognitive impairments such as subjective cognitive impairment (SCI) and mild cognitive impairment (MCI) are also discussed. We discuss the rationale that for treatment of asthenic conditions accompanied by cognitive dysfunction it is justified to use combination therapy - fonturacetam and a preparation containing nicotinoyl-GABA and Ginkgo Biloba.
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Affiliation(s)
- N V Titova
- Federal Center of Brain and Neurotechnologies, Moscow, Russia
- Pirogov Russian National Research Medical University, Moscow, Russia
| | | | - E A Katunina
- Federal Center of Brain and Neurotechnologies, Moscow, Russia
- Pirogov Russian National Research Medical University, Moscow, Russia
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Chandan JS, Thomas T, Raza K, Bradbury-Jones C, Taylor J, Bandyopadhyay S, Nirantharakumar K. Intimate Partner Violence and the Risk of Developing Fibromyalgia and Chronic Fatigue Syndrome. JOURNAL OF INTERPERSONAL VIOLENCE 2021; 36:NP12279-NP12298. [PMID: 31805821 DOI: 10.1177/0886260519888515] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Intimate partner violence (IPV) is a global public health issue with a variety of ill health consequences associated with exposure. Due to the stimulation of chronic stress and inflammatory pathways, childhood abuse has been associated with the subsequent development of functional syndromes such as fibromyalgia and chronic fatigue syndrome (CFS). Although IPV in women appears to elicit similar biochemical responses, this association has not been tested thoroughly in IPV survivors. These functional syndromes are complex in etiology and any indication of their risk factors would benefit health care professionals managing this population. Therefore, we aimed to investigate the association between exposure to IPV with functional syndromes: fibromyalgia and CFS. We conducted a retrospective open cohort study using "The Heath Improvement Network" database between January 1, 1995 and December 1, 2017. A total of 18,547 women who were exposed to IPV were each matched by age to four controls who were not exposed (n = 74,188). The main outcome measures were the risk of developing fibromyalgia and CFS. These were presented as adjusted incidence rate ratios (aIRR) with 95% confidence intervals (CIs). We found that 97 women in the exposed group developed fibromyalgia (incidence rate [IR] = 1.63 per 1,000 person-years) compared to 239 women in the unexposed group (IR = 0.83 per 1,000 person-years). Following adjustment, this translated to an IRR of 1.73 (95% CI = [1.36, 2.22]). Similarly, 19 women developed CFS in the exposed group (IR = 0.32 per 1,000 person-years), compared to 53 in the unexposed group (0.18 per 1,000 person-years), which translates to an aIRR of 1.92 (95% CI = [1.11, 3.33]). Therefore, we have identified an association between a history of IPV in women and the development of these functional syndromes, which may provide more information to inform the biopsychosocial pathway precipitating the development of fibromyalgia and CFS.
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Affiliation(s)
| | | | - Karim Raza
- University of Birmingham, UK
- Sandwell and West Birmingham Hospitals NHS Trust, UK
| | | | - Julie Taylor
- University of Birmingham, UK
- Birmingham Women's and Children's NHS Foundation Trust, UK
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Fernandez-Guerra P, Gonzalez-Ebsen AC, Boonen SE, Courraud J, Gregersen N, Mehlsen J, Palmfeldt J, Olsen RKJ, Brinth LS. Bioenergetic and Proteomic Profiling of Immune Cells in Myalgic Encephalomyelitis/Chronic Fatigue Syndrome Patients: An Exploratory Study. Biomolecules 2021; 11:961. [PMID: 34209852 PMCID: PMC8301912 DOI: 10.3390/biom11070961] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 06/17/2021] [Accepted: 06/18/2021] [Indexed: 01/22/2023] Open
Abstract
Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a heterogeneous, debilitating, and complex disease. Along with disabling fatigue, ME/CFS presents an array of other core symptoms, including autonomic nervous system (ANS) dysfunction, sustained inflammation, altered energy metabolism, and mitochondrial dysfunction. Here, we evaluated patients' symptomatology and the mitochondrial metabolic parameters in peripheral blood mononuclear cells (PBMCs) and plasma from a clinically well-characterised cohort of six ME/CFS patients compared to age- and gender-matched controls. We performed a comprehensive cellular assessment using bioenergetics (extracellular flux analysis) and protein profiles (quantitative mass spectrometry-based proteomics) together with self-reported symptom measures of fatigue, ANS dysfunction, and overall physical and mental well-being. This ME/CFS cohort presented with severe fatigue, which correlated with the severity of ANS dysfunction and overall physical well-being. PBMCs from ME/CFS patients showed significantly lower mitochondrial coupling efficiency. They exhibited proteome alterations, including altered mitochondrial metabolism, centred on pyruvate dehydrogenase and coenzyme A metabolism, leading to a decreased capacity to provide adequate intracellular ATP levels. Overall, these results indicate that PBMCs from ME/CFS patients have a decreased ability to fulfill their cellular energy demands.
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Affiliation(s)
- Paula Fernandez-Guerra
- Research Unit for Molecular Medicine, Department of Clinical Medicine, Aarhus University and Aarhus University Hospital, 8200 Aarhus, Denmark; (A.C.G.-E.); (N.G.); (J.P.)
- KMEB, Department of Endocrinology, Odense University Hospital and Department of Clinical Research, University of Southern Denmark, 5000 Odense, Denmark
| | - Ana C. Gonzalez-Ebsen
- Research Unit for Molecular Medicine, Department of Clinical Medicine, Aarhus University and Aarhus University Hospital, 8200 Aarhus, Denmark; (A.C.G.-E.); (N.G.); (J.P.)
| | - Susanne E. Boonen
- Department of Clinical Genetics, Odense University Hospital, 5000 Odense, Denmark;
| | - Julie Courraud
- Section for Clinical Mass Spectrometry, Danish Center for Neonatal Screening, Department of Congenital Disorders, Statens Serum Institute, 2300 Copenhagen, Denmark;
| | - Niels Gregersen
- Research Unit for Molecular Medicine, Department of Clinical Medicine, Aarhus University and Aarhus University Hospital, 8200 Aarhus, Denmark; (A.C.G.-E.); (N.G.); (J.P.)
| | - Jesper Mehlsen
- Section for Surgical Pathophysiology, Juliane Marie Center, Rigshospitalet, 2100 Copenhagen, Denmark;
| | - Johan Palmfeldt
- Research Unit for Molecular Medicine, Department of Clinical Medicine, Aarhus University and Aarhus University Hospital, 8200 Aarhus, Denmark; (A.C.G.-E.); (N.G.); (J.P.)
| | - Rikke K. J. Olsen
- Research Unit for Molecular Medicine, Department of Clinical Medicine, Aarhus University and Aarhus University Hospital, 8200 Aarhus, Denmark; (A.C.G.-E.); (N.G.); (J.P.)
| | - Louise Schouborg Brinth
- Department of Clinical Physiology and Nuclear Medicine, Nordsjaellands Hospital, 2400 Hilleroed, Denmark;
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Xue K, Wang Y, Wang X, Chen P, Xiao C, Fu J, Cui J. The efficacy and safety of moxibustion for chronic fatigue syndrome: A protocol for systematic review and meta-analysis. Medicine (Baltimore) 2021; 100:e25742. [PMID: 33950958 PMCID: PMC8104202 DOI: 10.1097/md.0000000000025742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 04/14/2021] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND The pathogenesis of chronic fatigue syndrome (CFS) is not clear. The main purpose of treatment is to improve autoimmune function and relieve fatigue symptoms. Moxibustion is often used to treat diseases caused by low autoimmunity, especially in relieving fatigue symptoms. It is a superior therapy for CFS in traditional Chinese medicine. At present, there is a lack of the high level clinical evidence to support the moxibustion in the treatment of CFS, so this study will systematically review and analyze the currently available randomized controlled trials to evaluate the efficacy and safety of moxibustion in the treatment of CFS. METHODS We will systematically search PubMed, EMBASE, Cochrane library, Sinomed, CNKI, VIP, and Wanfang Database, ClinicalTrials.gov and Chinese Clinical Trial Registry will also be searched. The time range for the search will be from database activation to March 31, 2021. The randomized controlled trials (RCTs) associated with moxibustion for CFS will be included, regardless of language.We will use the standard proposed in Cochrane Handbook 5.1.0 to assess the bias risk of a single RCT. The main outcome index of the study is Fatigue Assessment Instrument (FAI), secondary outcome indexes will include Fatigue Scale -14 (FS-14), Fatigue Severity Scale (FSS), Pittsburgh sleep quality index (PSQI), natural killer (NK) cells, interleukin- 2 (IL-2), T lymphocyte subsets (CD4+, CD8+), cure rate, total efficiency and adverse reactions. The random effect model meta was used to analyze the effect data of a single RCT. Heterogeneity will be measured by Cochran Q test and I-squared statistics. We will use 2 subgroup analyses to explore the source of heterogeneity. RCTs with high bias risk was excluded and adjustment effect model was used for sensitivity analysis to test the robustness of the meta-analysis results. The publication bias included in RCTs will be assessed by funnel plot and Egger test. RESULTS This study will objectively and comprehensively evaluate the efficacy and safety of randomized controlled trials of moxibustion in the treatment of chronic fatigue syndrome, and the results will be submitted to peer-reviewed journals for publication. CONCLUSION This systematic review will provide clinicians with the latest high-quality evidence for the use of moxibustion in the treatment of chronic fatigue syndrome. INPLASY REGISTRATION NUMBER INPLASY202140063.
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Affiliation(s)
- Kaiyang Xue
- Guizhou University of Traditional Chinese Medicine, Guizhou
| | - Yanping Wang
- Jiangxi University of Traditional Chinese Medicine, Jiangxi, China
| | - Xianzhu Wang
- Guizhou University of Traditional Chinese Medicine, Guizhou
| | - Pingnan Chen
- Guizhou University of Traditional Chinese Medicine, Guizhou
| | - Caihong Xiao
- Guizhou University of Traditional Chinese Medicine, Guizhou
| | - Jing Fu
- Guizhou University of Traditional Chinese Medicine, Guizhou
| | - Jin Cui
- Guizhou University of Traditional Chinese Medicine, Guizhou
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Maksoud R, du Preez S, Eaton-Fitch N, Thapaliya K, Barnden L, Cabanas H, Staines D, Marshall-Gradisnik S. A systematic review of neurological impairments in myalgic encephalomyelitis/ chronic fatigue syndrome using neuroimaging techniques. PLoS One 2020; 15:e0232475. [PMID: 32353033 PMCID: PMC7192498 DOI: 10.1371/journal.pone.0232475] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Accepted: 04/15/2020] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Myalgic encephalomyelitis/ Chronic Fatigue Syndrome (ME/CFS) is a multi-system illness characterised by a diverse range of debilitating symptoms including autonomic and cognitive dysfunction. The pathomechanism remains elusive, however, neurological and cognitive aberrations are consistently described. This systematic review is the first to collect and appraise the literature related to the structural and functional neurological changes in ME/CFS patients as measured by neuroimaging techniques and to investigate how these changes may influence onset, symptom presentation and severity of the illness. METHODS A systematic search of databases Pubmed, Embase, MEDLINE (via EBSCOhost) and Web of Science (via Clarivate Analytics) was performed for articles dating between December 1994 and August 2019. Included publications report on neurological differences in ME/CFS patients compared with healthy controls identified using neuroimaging techniques such as magnetic resonance imaging, positron emission tomography and electroencephalography. Article selection was further refined based on specific inclusion and exclusion criteria. A quality assessment of included publications was completed using the Joanna Briggs Institute checklist. RESULTS A total of 55 studies were included in this review. All papers assessed neurological or cognitive differences in adult ME/CFS patients compared with healthy controls using neuroimaging techniques. The outcomes from the articles include changes in gray and white matter volumes, cerebral blood flow, brain structure, sleep, EEG activity, functional connectivity and cognitive function. Secondary measures including symptom severity were also reported in most studies. CONCLUSIONS The results suggest widespread disruption of the autonomic nervous system network including morphological changes, white matter abnormalities and aberrations in functional connectivity. However, these findings are not consistent across studies and the origins of these anomalies remain unknown. Future studies are required confirm the potential neurological contribution to the pathology of ME/CFS.
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Affiliation(s)
- Rebekah Maksoud
- 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
- * E-mail:
| | - Stanley du Preez
- 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
- School of Medical Sciences, Griffith University, Gold Coast, Australia
- School of Medicine, Griffith University, Gold Coast, Australia
| | - Natalie Eaton-Fitch
- 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
- School of Medical Sciences, Griffith University, Gold Coast, Australia
| | - Kiran Thapaliya
- 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
| | - Leighton Barnden
- 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
| | - Hélène Cabanas
- 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
| | - Donald 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
| | - Sonya 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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Nipate SS, Tiwari AH. Antioxidant and immunomodulatory properties of Spilanthes oleracea with potential effect in chronic fatigue syndrome infirmity. J Ayurveda Integr Med 2020; 11:124-130. [PMID: 30455072 PMCID: PMC7329728 DOI: 10.1016/j.jaim.2017.08.008] [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: 03/09/2017] [Revised: 08/04/2017] [Accepted: 08/15/2017] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Chronic fatigue syndrome (CFS) holds a mystery for researchers due to its multifactorial nature; hence, its diagnosis is still based on symptoms and aetiology remains obscured. Number of scientific evidences regarding the role of oxidative stress, immune dysfunction in CFS and alleviation of symptoms with the help of nutritional supplements guided us to study effect of ethanolic extract of Spilanthes oleracea (SPE) in CFS. OBJECTIVES Present study was designed to evaluate antioxidant, immunomodulatory properties of S. oleracea flower to ameliorate CFS infirmity in mice. MATERIALS AND METHOD In order to induce fatigue, experimental animals were stressed by chronic water - immersion stress model. Meanwhile, parameters like immobility period and tail withdrawal latency were assessed. On the 21st day, mice blood was collected and they were immediately sacrificed for biochemical estimations. RESULTS Biochemical analysis results revealed that CFS elevates lipid peroxidation, nitrite level and diminishes the endogenous antioxidant enzyme like catalase level in stressed animal's brain homogenate. Stressful condition developed muscle fatigue leading in alteration of lactate dehydrogenase level (LDH), Blood urea nitrogen (BUN) and Triglycerides (TG) levels. Concurrent and chronic treatment of SPE for 21 days restored all these behavioural despairs and associated biochemical adaptation in mice in dose-dependent manner. CONCLUSION The outcome of this study indicates ability of SPE in amelioration of CFS by mitigating the oxidative stress and thus provide a powerful combat against CFS which may be due to its antioxidant and immunomodulatory properties.
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Affiliation(s)
- Sonali S Nipate
- Department of Pharmacology, P. E. S.'s Modern College of Pharmacy, Sector No. 21, Yamunanagar, Nigdi, Pune 411044, India.
| | - Anand H Tiwari
- Department of Pharmacology, P. E. S.'s Modern College of Pharmacy, Sector No. 21, Yamunanagar, Nigdi, Pune 411044, India
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Galland-Decker C, Marques-Vidal P, Vollenweider P. Prevalence and factors associated with fatigue in the Lausanne middle-aged population: a population-based, cross-sectional survey. BMJ Open 2019; 9:e027070. [PMID: 31446404 PMCID: PMC6720133 DOI: 10.1136/bmjopen-2018-027070] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
OBJECTIVE To assess the prevalence and factors associated with fatigue in the general population. DESIGN Population-based, cross-sectional survey performed between May 2014 and April 2017. SETTING General population of the city of Lausanne, Switzerland. PARTICIPANTS 2848 participants (53.2% women, age range 45-86 years). PRIMARY OUTCOME MEASURE Prevalence of fatigue the previous week, defined as a score of ≥4 using the Fatigue Severity Scale. RESULTS The prevalence of fatigue was 21.9% (95% CI 20.4% to 23.4%) in the total sample. On bivariate analysis, participants with fatigue were younger, had a higher body mass index, a lower handgrip strength and lower ferritin levels. Participants with fatigue were more frequently women, had a lower educational level, presented more frequently with clinical insomnia, diabetes, anaemia, depression and low thyroid stimulating hormone (TSH) values, had a higher consumption of antihistamines, antidepressants and hypnotics, and rated more frequently their health as bad or very bad. Multivariable analysis showed that obesity (OR 1.40 (95% CI 1.03 to 1.91)), insomnia categories (p value for trend <0.001), depression (OR 3.26 (95% CI 2.38 to 4.46)), anaemia (OR 1.70 (95% CI 1.00 to 2.89)) and low self-rated health status (p value for trend <0.001) were positively associated with fatigue, while older age (p value for trend 0.002) was negatively associated with fatigue. Conversely, no association was found for diabetes, TSH levels, antihistamines or hypnotics. CONCLUSION In a population-based sample aged 45-86, fatigue was present in one out of five subjects. Regarding clinical factors, sleep disturbances such as insomnia and sleep apnoea should be assessed first, followed by depression. Regarding biological factors, anaemia should be ruled out, while screening for hypothyroidism is not recommended as a first step. Sleep complaints and fatigue in older subjects are not due to ageing and should prompt identification of the underlying cause.
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Affiliation(s)
- Coralie Galland-Decker
- Department of Medicine, Internal Medicine, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Pedro Marques-Vidal
- Department of Medicine, Internal Medicine, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Peter Vollenweider
- Department of Medicine, Internal Medicine, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
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Günther OP, Gardy JL, Stafford P, Fluge Ø, Mella O, Tang P, Miller RR, Parker SM, Johnston SA, Patrick DM. Immunosignature Analysis of Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS). Mol Neurobiol 2019; 56:4249-4257. [PMID: 30298340 PMCID: PMC6505503 DOI: 10.1007/s12035-018-1354-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Accepted: 09/14/2018] [Indexed: 12/27/2022]
Abstract
A random-sequence peptide microarray can interrogate serum antibodies in a broad, unbiased fashion to generate disease-specific immunosignatures. This approach has been applied to cancer detection, diagnosis of infections, and interrogation of vaccine response. We hypothesized that there is an immunosignature specific to ME/CFS and that this could aid in the diagnosis. We studied two subject groups meeting the Canadian Consensus Definition of ME/CFS. ME/CFS (n = 25) and matched control (n = 25) sera were obtained from a Canadian study. ME/CFS (n = 25) sera were obtained from phase 1/2 Norwegian trials (NCT01156909). Sera from six healthy controls from the USA were included in the analysis. Canadian cases and controls were tested for a disease immunosignature. By combining results from unsupervised and supervised analyses, a candidate immunosignature with 654 peptides was able to differentiate ME/CFS from controls. The immunosignature was tested and further refined using the Norwegian and USA samples. This resulted in a 256-peptide immunosignature with the ability to separate ME/CFS cases from controls in the international data sets. We were able to identify a 256-peptide signature that separates ME/CFS samples from healthy controls, suggesting that the hit-and-run hypothesis of immune dysfunction merits further investigation. By extending testing of both our signature and one previously reported in the literature to larger cohorts, and further interrogating the specific peptides we and others have identified, we may deepen our understanding of the origins of ME/CFS and work towards a clinically meaningful diagnostic biomarker.
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Affiliation(s)
| | - Jennifer L Gardy
- British Columbia Centre for Disease Control, Vancouver, BC, Canada
- School of Population and Public Health, University of British Columbia, Vancouver, BC, Canada
| | | | - Øystein Fluge
- Department of Oncology and Medical Physics, Haukeland University Hospital, Bergen, Norway
| | - Olav Mella
- Department of Oncology and Medical Physics, Haukeland University Hospital, Bergen, Norway
| | | | - Ruth R Miller
- School of Population and Public Health, University of British Columbia, Vancouver, BC, Canada
| | - Shoshana M Parker
- Centre for Health Evaluation and Outcome Sciences, St. Paul's Hospital, Vancouver, BC, Canada
| | | | - David M Patrick
- British Columbia Centre for Disease Control, Vancouver, BC, Canada.
- School of Population and Public Health, University of British Columbia, Vancouver, BC, Canada.
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Bouquet J, Li T, Gardy JL, Kang X, Stevens S, Stevens J, VanNess M, Snell C, Potts J, Miller RR, Morshed M, McCabe M, Parker S, Uyaguari M, Tang P, Steiner T, Chan WS, De Souza AM, Mattman A, Patrick DM, Chiu CY. Whole blood human transcriptome and virome analysis of ME/CFS patients experiencing post-exertional malaise following cardiopulmonary exercise testing. PLoS One 2019; 14:e0212193. [PMID: 30897114 PMCID: PMC6428308 DOI: 10.1371/journal.pone.0212193] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Accepted: 01/24/2019] [Indexed: 11/19/2022] Open
Abstract
Myalgic encephalomyelitis / chronic fatigue syndrome (ME/CFS) is a syndrome of unknown etiology characterized by profound fatigue exacerbated by physical activity, also known as post-exertional malaise (PEM). Previously, we did not detect evidence of immune dysregulation or virus reactivation outside of PEM periods. Here we sought to determine whether cardiopulmonary exercise stress testing of ME/CFS patients could trigger such changes. ME/CFS patients (n = 14) and matched sedentary controls (n = 11) were subjected to cardiopulmonary exercise on 2 consecutive days and followed up to 7 days post-exercise, and longitudinal whole blood samples analyzed by RNA-seq. Although ME/CFS patients showed significant worsening of symptoms following exercise versus controls, with 8 of 14 ME/CFS patients showing reduced oxygen consumption ([Formula: see text]) on day 2, transcriptome analysis yielded only 6 differentially expressed gene (DEG) candidates when comparing ME/CFS patients to controls across all time points. None of the DEGs were related to immune signaling, and no DEGs were found in ME/CFS patients before and after exercise. Virome composition (P = 0.746 by chi-square test) and number of viral reads (P = 0.098 by paired t-test) were not significantly associated with PEM. These observations do not support transcriptionally-mediated immune cell dysregulation or viral reactivation in ME/CFS patients during symptomatic PEM episodes.
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Affiliation(s)
- Jerome Bouquet
- Department of Laboratory Medicine, University of California San Francisco, San Francisco, California, United States of America
| | - Tony Li
- Department of Laboratory Medicine, University of California San Francisco, San Francisco, California, United States of America
| | - Jennifer L. Gardy
- Communicable Disease Prevention and Control Services, Vancouver, Canada
- School of Population and Public Health, University of British Columbia, Vancouver, Canada
| | - Xiaoying Kang
- School of Population and Public Health, University of British Columbia, Vancouver, Canada
| | - Staci Stevens
- Workwell Foundation, Ripon, California, United States of America
| | - Jared Stevens
- Workwell Foundation, Ripon, California, United States of America
| | - Mark VanNess
- Workwell Foundation, Ripon, California, United States of America
| | | | - James Potts
- Department of Pediatrics, Division of Cardiology, University of British Columbia, Vancouver, Canada
| | - Ruth R. Miller
- School of Population and Public Health, University of British Columbia, Vancouver, Canada
| | - Muhammad Morshed
- British Columbia Centre for Disease Control Public Health Laboratory, Vancouver, Canada
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, Canada
| | - Mark McCabe
- Communicable Disease Prevention and Control Services, Vancouver, Canada
| | - Shoshana Parker
- Centre for Health Evaluation Outcome Sciences, Vancouver, Canada
| | - Miguel Uyaguari
- British Columbia Centre for Disease Control Public Health Laboratory, Vancouver, Canada
| | - Patrick Tang
- Department of Pathology, Sidra Medical and Research Center, Doha, Qatar
| | - Theodore Steiner
- Department of Medicine, Division of Infectious Diseases, University of British Columbia, Vancouver, Canada
| | - Wee-Shian Chan
- Department of Medicine, Division of Infectious Diseases, University of British Columbia, Vancouver, Canada
| | | | - Andre Mattman
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, Canada
- Adult Metabolic Disease Clinic, Vancouver General Hospital, Vancouver, Canada
| | - David M. Patrick
- Communicable Disease Prevention and Control Services, Vancouver, Canada
- School of Population and Public Health, University of British Columbia, Vancouver, Canada
| | - Charles Y. Chiu
- Department of Laboratory Medicine, University of California San Francisco, San Francisco, California, United States of America
- Department of Medicine, Division of Infectious Diseases, University of California San Francisco, San Francisco, California, United States of America
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11
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DO CT. Successful outcome of musculoskeletal injury leads to a reduction in chronic fatigue: A case report. J Bodyw Mov Ther 2018; 22:281-286. [DOI: 10.1016/j.jbmt.2017.07.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Revised: 05/16/2017] [Accepted: 07/15/2017] [Indexed: 10/19/2022]
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12
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Brown B, Huszar K, Chapman R. 'Betwixt and between'; liminality in recovery stories from people with myalgic encephalomyelitis (ME) or chronic fatigue syndrome (CFS). SOCIOLOGY OF HEALTH & ILLNESS 2017; 39:696-710. [PMID: 28239872 DOI: 10.1111/1467-9566.12546] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
This paper explores experiences of 16 people claiming to have recovered from Myalgic Encephalomyelitis (ME) or Chronic Fatigue Syndrome (CFS) using the concept of liminality. Liminality describes the status of those falling between socially recognised and medically sanctioned categories, and illuminates both the experience of illness and the process of recovery from ME/CFS. The liminality experienced during illness was akin to that described by Turner with a degree of communitas among sufferers. As recovery progressed, participants stressed the percentage to which they had improved, and compared themselves with peers and themselves prior to the illness. Recovery did not mean transition into a post-liminal phase, but involved a new liminality, characterised by straddling boundaries between illness and wellness. Participants continued strategies such as rest, pacing and meditation. This second liminal state included difficulty in communicating the experience convincingly, and estrangement from the ME/CFS community. Thus, recoverees moved from the liminality of illness to a second, and less legible state of sustained liminality in recovery, described as having one foot in the ill world, one foot in the well world. This suggests that more needs to be understood about the recovery experience to assist those making the transition toward wellness.
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Affiliation(s)
- Brian Brown
- School of Applied Social Sciences, De Montfort University, UK
| | - Kate Huszar
- School of Applied Social Sciences, De Montfort University, UK
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13
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Mensah FKF, Bansal AS, Ford B, Cambridge G. Chronic fatigue syndrome and the immune system: Where are we now? Neurophysiol Clin 2017; 47:131-138. [PMID: 28410877 DOI: 10.1016/j.neucli.2017.02.002] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2017] [Accepted: 02/07/2017] [Indexed: 10/19/2022] Open
Abstract
Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is characterised by multiple symptoms including fatigue, headaches and cognitive impairment, which have a significantly adverse effect on the normal functioning and well-being of the individual. These symptoms are often triggered or worsened following physical or mental exertion. ME/CFS has long been thought of as having a significant immunological component, but reports describing changes in immune function are often inconsistent between study groups. Although the wide range of physical, neurocognitive and autonomic symptoms reported have seriously hampered attempts to understand pathophysiological pathways, investment in biomedical research in ME/CFS is finally increasing with a number of novel and promising investigations being published. The onset of ME/CFS may often be linked to (viral) infections which would be consistent with a variety of alterations in natural killer (NK) cell function as described by a number of different groups. Consistency in cytokine data has been lacking so far, although recently more sophisticated approaches have led to more robust data from large patient cohorts. New hope has also been given to sufferers with the possibility that therapies that deplete B cells can result in clinical improvement. To understand the pathogenic mechanism in this complex condition, it is important to consider repeated analysis in different cohorts. In this review, we will discuss the potential of different components of the immune system to be involved in the pathogenesis of ME/CFS.
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Affiliation(s)
- Fane Kojo Fosu Mensah
- Department of Rheumatology Research, Division of Medicine, University College of London, Rayne Building, 5, University Street, WC1E 6JF London, United Kingdom.
| | - Amolak Singh Bansal
- Department of Immunology, Epsom and St-Helier University Hospitals NHS Trust, London, United Kingdom
| | - Brian Ford
- Department of Immunology, Epsom and St-Helier University Hospitals NHS Trust, London, United Kingdom
| | - Geraldine Cambridge
- Department of Rheumatology Research, Division of Medicine, University College of London, Rayne Building, 5, University Street, WC1E 6JF London, United Kingdom
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14
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Doerr JM, Jopp DS, Chajewski M, Nater UM. Patterns of control beliefs in chronic fatigue syndrome: results of a population-based survey. BMC Psychol 2017; 5:6. [PMID: 28264716 PMCID: PMC5340015 DOI: 10.1186/s40359-017-0174-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Accepted: 02/21/2017] [Indexed: 11/14/2022] Open
Abstract
Background Chronic fatigue syndrome (CFS) represents a unique clinical challenge for patients and health care providers due to unclear etiology and lack of specific treatment. Characteristic patterns of behavior and cognitions might be related to how CFS patients respond to management strategies. Methods This study investigates control beliefs in a population-based sample of 113 CFS patients, 264 individuals with insufficient symptoms or fatigue for CFS diagnosis (ISF), and 124 well individuals. Results Controlling for personality and coping, individuals with low confidence in their problem-solving capacity were almost 8 times more likely to be classified as ISF and 5 times more likely to be classified as CFS compared to being classified as well. However there was a wide distribution within groups and individuals with “low confidence” scores were found in 31.7% of Well individuals. Individuals with low levels of anxiety and who were more outgoing were less likely to be classified as ISF or CFS. Conclusions These findings suggest that fostering control beliefs could be an important focus for developing behavioral management strategies in CFS and other chronic conditions.
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Affiliation(s)
- Johanna M Doerr
- Clinical Biopsychology, Dept. of Psychology, University of Marburg, Gutenbergstrasse 18, 35032, Marburg, Germany
| | - Daniela S Jopp
- Dept. of Psychology, Fordham University, Dealy 318, 441 East Fordham Road, Bronx, NY, 10458-9993, USA
| | - Michael Chajewski
- Dept. of Psychology, Fordham University, Dealy 318, 441 East Fordham Road, Bronx, NY, 10458-9993, USA
| | - Urs M Nater
- Clinical Biopsychology, Dept. of Psychology, University of Marburg, Gutenbergstrasse 18, 35032, Marburg, Germany.
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15
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Bansal AS. Investigating unexplained fatigue in general practice with a particular focus on CFS/ME. BMC FAMILY PRACTICE 2016; 17:81. [PMID: 27436349 PMCID: PMC4950776 DOI: 10.1186/s12875-016-0493-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Accepted: 07/13/2016] [Indexed: 01/23/2023]
Abstract
Unexplained fatigue is not infrequent in the community. It presents a number of challenges to the primary care physician and particularly if the clinical examination and routine investigations are normal. However, while fatigue is a feature of many common illnesses, it is the main problem in Chronic Fatigue Syndrome/Myalgic Encephalomyelitis (CFS/ME). This is a poorly understood condition that is accompanied by several additional symptoms which suggest a subtle multisystem dysfunction. Not infrequently it is complicated by sleep disturbance and alterations in attention, memory and mood. Specialised services for the diagnosis and management of CFS/ME are markedly deficient in the UK and indeed in virtually all countries around the world. However, unexplained fatigue and CFS/ME may be confidently diagnosed on the basis of specific clinical criteria combined with the normality of routine blood tests. The latter include those that assess inflammation, autoimmunity, endocrine dysfunction and gluten sensitivity. Early diagnosis and intervention in general practice will do much to reduce patient anxiety, encourage improvement and prevent expensive unnecessary investigations. There is presently an on-going debate as to the precise criteria that best confirms CFS/ME to the exclusion of other medical and psychiatric/psychological causes of chronic fatigue. There is also some disagreement as to best means of investigating and managing this very challenging condition. Uncertainty here can contribute to patient stress which in some individuals can perpetuate and aggravate symptoms. A simple clinical scoring system and a short list of routine investigations should help discriminate CFS/ME from other causes of continued fatigue.
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Affiliation(s)
- Amolak S Bansal
- Department of Immunology and Allergy, St. Helier Hospital, Carshalton, Surrey, SM5 1AA, UK. .,The Sutton CFS Service, Sutton Hospital, Cotswold Rd, Sutton, SM2 5NF, UK.
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16
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Fukuda S, Nojima J, Kajimoto O, Yamaguti K, Nakatomi Y, Kuratsune H, Watanabe Y. Ubiquinol-10 supplementation improves autonomic nervous function and cognitive function in chronic fatigue syndrome. Biofactors 2016; 42:431-40. [PMID: 27125909 DOI: 10.1002/biof.1293] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Revised: 03/29/2016] [Accepted: 04/02/2016] [Indexed: 11/07/2022]
Abstract
The aim of this study was to evaluate the benefit of oral ubiquinol-10 supplementation in CFS patients using an open-label study and a randomized, double-blinded, placebo-controlled (RCT) study. Twenty patients with CFS were randomly enrolled in an 8-week open-label oral ubiquinol-10 (150 mg ubiquinol-10/day) study. The patients and the attending physicians were not blinded to the supplementation. Forty-three patients with CFS were randomly assigned to receive either ubiquinol-10 (150 mg/day) or placebo every day for 12 weeks. The patients and the attending physicians were blinded to the supplementation, and a total of 31 patients (N = 17 in the ubiquinol group and 14 in the placebo group) completed the study. The beneficial effects of ubiquinol-10 were observed in the open-label study we conducted prior to the RCT. The RCT results suggest that supplementation with ubiquinol-10 for 12 weeks is effective for improving several CFS symptoms. © 2016 BioFactors, 42(4):431-440, 2016.
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Affiliation(s)
- Sanae Fukuda
- University of Kansai Welfare Sciences, 3-11-1 Asahigaoka, Kashiwara, Osaka, 582-0026, Japan
- RIKEN Center for Life Science Technologies, 6-7-3 Minatojima-Minamimachi, Chuo-Ku, Kobe, Hyogo, 650-0047, Japan
- Department of Physiology, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi, Abenoku, Osaka City, Osaka, 545-8585, Japan
| | - Junzo Nojima
- Yamaguchi University Graduate School of Medicine, 1-1-1 Minamiogushi, Ube City, Yamaguchi, 755-8505, Japan
| | - Osami Kajimoto
- Department of Medical Science on Fatigue, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi, Abenoku, Osaka City, Osaka, 545-8585, Japan
| | - Kouzi Yamaguti
- Department of Physiology, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi, Abenoku, Osaka City, Osaka, 545-8585, Japan
- Department of Endocrinology, Metabolism and Molecular Medicine, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi, Abenoku, Osaka City, Osaka, 545-8585, Japan
| | - Yasuhito Nakatomi
- Department of Physiology, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi, Abenoku, Osaka City, Osaka, 545-8585, Japan
- Department of Endocrinology, Metabolism and Molecular Medicine, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi, Abenoku, Osaka City, Osaka, 545-8585, Japan
| | - Hirohiko Kuratsune
- University of Kansai Welfare Sciences, 3-11-1 Asahigaoka, Kashiwara, Osaka, 582-0026, Japan
- Department of Physiology, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi, Abenoku, Osaka City, Osaka, 545-8585, Japan
- Department of Endocrinology, Metabolism and Molecular Medicine, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi, Abenoku, Osaka City, Osaka, 545-8585, Japan
| | - Yasuyoshi Watanabe
- RIKEN Center for Life Science Technologies, 6-7-3 Minatojima-Minamimachi, Chuo-Ku, Kobe, Hyogo, 650-0047, Japan
- Department of Physiology, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi, Abenoku, Osaka City, Osaka, 545-8585, Japan
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17
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Navaneetharaja N, Griffiths V, Wileman T, Carding SR. A Role for the Intestinal Microbiota and Virome in Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS)? J Clin Med 2016; 5:E55. [PMID: 27275835 PMCID: PMC4929410 DOI: 10.3390/jcm5060055] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Revised: 05/23/2016] [Accepted: 05/31/2016] [Indexed: 02/06/2023] Open
Abstract
Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a heterogeneous disorder of significant societal impact that is proposed to involve both host and environmentally derived aetiologies that may be autoimmune in nature. Immune-related symptoms of at least moderate severity persisting for prolonged periods of time are common in ME/CFS patients and B cell depletion therapy is of significant therapeutic benefit. The origin of these symptoms and whether it is infectious or inflammatory in nature is not clear, with seeking evidence of acute or chronic virus infections contributing to the induction of autoimmune processes in ME/CFS being an area of recent interest. This article provides a comprehensive review of the current evidence supporting an infectious aetiology for ME/CFS leading us to propose the novel concept that the intestinal microbiota and in particular members of the virome are a source of the "infectious" trigger of the disease. Such an approach has the potential to identify disease biomarkers and influence therapeutics, providing much-needed approaches in preventing and managing a disease desperately in need of confronting.
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Affiliation(s)
- Navena Navaneetharaja
- The Gut Health and Food Safety Research Programme, The Institute of Food Research, University of East Anglia, Norwich NR4 7UA, UK.
- Norwich Medical School, University of East Anglia, Norwich NR4 7TJ, UK.
| | - Verity Griffiths
- Norwich Medical School, University of East Anglia, Norwich NR4 7TJ, UK.
| | - Tom Wileman
- The Gut Health and Food Safety Research Programme, The Institute of Food Research, University of East Anglia, Norwich NR4 7UA, UK.
- Norwich Medical School, University of East Anglia, Norwich NR4 7TJ, UK.
| | - Simon R Carding
- The Gut Health and Food Safety Research Programme, The Institute of Food Research, University of East Anglia, Norwich NR4 7UA, UK.
- Norwich Medical School, University of East Anglia, Norwich NR4 7TJ, UK.
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18
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Vos-Vromans DCWM, Smeets RJEM, Huijnen IPJ, Köke AJA, Hitters WMGC, Rijnders LJM, Pont M, Winkens B, Knottnerus JA. Multidisciplinary rehabilitation treatment versus cognitive behavioural therapy for patients with chronic fatigue syndrome: a randomized controlled trial. J Intern Med 2016; 279:268-82. [PMID: 26306716 DOI: 10.1111/joim.12402] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
OBJECTIVES The aim of this trial was to evaluate the difference in treatment effect, at 26 and 52 weeks after the start of treatment, between cognitive behavioural therapy (CBT) and multidisciplinary rehabilitation treatment (MRT) for patients with chronic fatigue syndrome (CFS). DESIGN Multicentre, randomized controlled trial of patients with CFS. Participants were randomly assigned to MRT or CBT. SETTING Four rehabilitation centres in the Netherlands. SUBJECTS A total of 122 patients participated in the trial. MAIN OUTCOME MEASURES Primary outcomes were fatigue measured by the fatigue subscale of the Checklist Individual Strength and health-related quality of life measured by the Short-Form 36. Outcomes were assessed prior to treatment and at 26 and 52 weeks after treatment initiation. RESULTS A total of 114 participants completed the assessment at 26 weeks, and 112 completed the assessment at 52 weeks. MRT was significantly more effective than CBT in reducing fatigue at 52 weeks. The estimated difference in fatigue between the two treatments was -3.02 [95% confidence interval (CI) -8.07 to 2.03; P = 0.24] at 26 weeks and -5.69 (95% CI -10.62 to -0.76; P = 0.02) at 52 weeks. Patients showed an improvement in quality of life over time, but between-group differences were not significant. CONCLUSION This study provides evidence that MRT is more effective in reducing long-term fatigue severity than CBT in patients with CFS. Although implementation in comparable populations can be recommended based on clinical effectiveness, it is advisable to analyse the cost-effectiveness and replicate these findings in another multicentre trial.
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Affiliation(s)
| | - R J E M Smeets
- Department of Rehabilitation Medicine, Research School CAPHRI Maastricht University, Maastricht, The Netherlands.,Department of Rehabilitation Medicine, Academic Hospital Maastricht, Maastricht, The Netherlands.,Adelante Centre of Expertise in Rehabilitation and Audiology, Hoensbroek, The Netherlands
| | - I P J Huijnen
- Department of Rehabilitation Medicine, Research School CAPHRI Maastricht University, Maastricht, The Netherlands.,Department of Rehabilitation Medicine, Academic Hospital Maastricht, Maastricht, The Netherlands.,Adelante Centre of Expertise in Rehabilitation and Audiology, Hoensbroek, The Netherlands
| | - A J A Köke
- Adelante Centre of Expertise in Rehabilitation and Audiology, Hoensbroek, The Netherlands
| | - W M G C Hitters
- Rehabilitation Centre Blixembosch, Eindhoven, The Netherlands
| | - L J M Rijnders
- Revant Rehabilitation Centre Breda, Breda, The Netherlands
| | - M Pont
- Reade Centre of Rheumatology and Rehabilitation, Amsterdam, The Netherlands
| | - B Winkens
- Department of Methodology and Statistics, Research School CAPHRI Maastricht University, Maastricht, The Netherlands
| | - J A Knottnerus
- Department of General Practice, Research School CAPHRI Maastricht University, Maastricht, The Netherlands
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19
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Ilhan B, Can M, Alibaz-Oner F, Yilmaz-Oner S, Polat-Korkmaz O, Ozen G, Mumcu G, Maradit Kremers H, Direskeneli H. Fatigue in patients with Behçet's syndrome: relationship with quality of life, depression, anxiety, disability and disease activity. Int J Rheum Dis 2016; 21:2139-2145. [DOI: 10.1111/1756-185x.12839] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Birkan Ilhan
- Department of Internal Medicine; School of Medicine; Marmara University; Istanbul Turkey
| | - Meryem Can
- Department of Rheumatology; Fatih Sultan Mehmet Education and Research Hospital; Istanbul Turkey
| | - Fatma Alibaz-Oner
- Department of Rheumatology; School of Medicine; Marmara University; Istanbul Turkey
| | - Sibel Yilmaz-Oner
- Department of Rheumatology; School of Medicine; Marmara University; Istanbul Turkey
| | - Ozge Polat-Korkmaz
- Department of Internal Medicine; School of Medicine; Marmara University; Istanbul Turkey
| | - Gulsen Ozen
- Department of Rheumatology; School of Medicine; Marmara University; Istanbul Turkey
| | - Gonca Mumcu
- Faculty of Health Sciences; Marmara University; Istanbul Turkey
| | | | - Haner Direskeneli
- Department of Rheumatology; School of Medicine; Marmara University; Istanbul Turkey
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20
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Cytokine inhibition in chronic fatigue syndrome patients: study protocol for a randomized controlled trial. Trials 2015; 16:439. [PMID: 26438161 PMCID: PMC4595002 DOI: 10.1186/s13063-015-0971-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2014] [Accepted: 09/22/2015] [Indexed: 01/29/2023] Open
Abstract
Background Chronic fatigue syndrome (CFS) is a medically unexplained syndrome for which no somatic or pharmacological treatment has been proven effective. Dysfunction of the cytokine network has been suspected to play a role in the pathophysiology of CFS. The disturbances of the cytokine network detected in CFS patients are highly variable, in part due to the lack of adequate controls in many studies. Furthermore, all studies have been performed on peripheral venous blood of patients. As cytokines mainly act in tissues, for example, the brain, the information that can be derived from peripheral blood cells is limited. The information regarding the possible role of cytokines in the pathophysiology could come from intervention studies in which the activities of relevant cytokines are reduced, for example, reducing interleukin-1, interleukin-6 or tumor necrosis factor. In this study, the clinical usefulness of anakinra, an IL-1 antagonist, will be assessed in patients with CFS. Methods/Design A randomized placebo-controlled, double-blind trial will be conducted. Fifty adult female patients meeting the Centers for Disease Control (CDC) criteria for CFS and without psychiatric co-morbidity will be included. After inclusion, patients will be randomized between treatment with anakinra (recombinant human interleukin-1 receptor antagonist) or placebo. Each group will be treated for 4 weeks. Outcome measures will be assessed at baseline, after 4 weeks of intervention, and 6 months after baseline assessment. The primary outcome measure will be fatigue severity at 4 weeks, measured with the validated Checklist of Individual Strength (CIS). Secondary outcome measures are functional impairment, physical and social functioning, psychological distress, pain severity, presence of accompanying symptoms, and cytokine and cortisol concentrations. Discussion This is the first randomized placebo-controlled trial that will evaluate the effect of interference with IL-1 on the experience of fatigue in patients with CFS. The results of this study may expand treatment options for patients with CFS, for whom graded exercise therapy and cognitive behavioral therapy are the only evidence-based interventions that exist at this moment. Trial registration Clinicaltrials.gov: NCT02108210. Clinicaltrials.gov registration date: 8 April 2014. EudraCT: 2013-005466-19
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21
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Miller RR, Reid WD, Mattman A, Yamabayashi C, Steiner T, Parker S, Gardy J, Tang P, Patrick DM. Submaximal exercise testing with near-infrared spectroscopy in Myalgic Encephalomyelitis/Chronic Fatigue Syndrome patients compared to healthy controls: a case-control study. J Transl Med 2015; 13:159. [PMID: 25990639 PMCID: PMC4438583 DOI: 10.1186/s12967-015-0527-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Accepted: 05/09/2015] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS) is a debilitating illness. Symptoms include profound fatigue and distinctive post-exertional malaise (PEM). We asked whether a submaximal exercise test would prove useful for identifying different patterns of tissue oxygen utilization in individuals with ME/CFS versus healthy subjects. Such a test has potential to aid with ME/CFS diagnosis, or to characterize patients' illness. METHODS A case-control study of 16 patients with ME/CFS compared to 16 healthy controls completing a 3-min handgrip protocol was performed. Response was measured using near-infrared spectroscopy, resulting in measurements of oxygenated (O2Hb) and deoxygenated hemoglobin (HHb) over wrist extensors and flexors. Changes in O2Hb (delta (d)O2Hb) and HHb (dHHb) absorbance between the first and last contraction were calculated, as were the force-time product of all contractions, measured as tension-time index (TTI), and ratings of perceived exertion (RPE). RESULTS Individuals with ME/CFS demonstrated smaller dO2Hb and dHHb than controls. However, after adjusting for TTI and change in total hemoglobin (delta (d)tHb), differences in dO2Hb and dHHb were reduced, with large overlapping variances. RPE was significantly higher for cases than controls, particularly at rest. CONCLUSIONS Relative to controls, participants with ME/CFS demonstrated higher RPE, lower TTI, and reduced dO2Hb and dHHb during repetitive handgrip exercise, although considerable variance was observed. With further study, submaximal exercise testing may prove useful for stratifying patients with a lower propensity for inducing PEM, and have the ability to establish baseline intensities for exercise prescription.
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Affiliation(s)
- Ruth R Miller
- School of Population and Public Health, British Columbia Centre for Disease Control, University of British Columbia, 655 West 12th Avenue, Vancouver, BC, V5Z 4R4, Canada.
| | - W Darlene Reid
- Department of Physical Therapy, University of Toronto, 160-500 University Avenue, Toronto, ON, M5G 1V7, Canada.
| | - Andre Mattman
- Adult Metabolic Disease Clinic, Vancouver General Hospital, Level 4, 2775 Laurel Street, Vancouver, BC, V5Z 1M9, Canada.
| | - Cristiane Yamabayashi
- Muscle Biophysics Laboratory, Department of Physical Therapy, University of British Columbia, 828 West 10th Avenue, Vancouver, BC, V5Z 3P1, Canada.
| | - Theodore Steiner
- Department of Medicine, Vancouver General Hospital, University of British Columbia, Vancouver, BC, V5Z 3J5, Canada.
| | - Shoshana Parker
- Centre for Health Evaluation and Outcome Sciences, 588-1081 Burrard Street, Vancouver, BC, V6Z 1Y6, Canada.
| | - Jennifer Gardy
- British Columbia Centre for Disease Control, 655 West 12th Avenue, Vancouver, BC, V5Z 4R4, Canada.
| | - Patrick Tang
- British Columbia Centre for Disease Control, 655 West 12th Avenue, Vancouver, BC, V5Z 4R4, Canada.
| | - David M Patrick
- School of Population and Public Health, British Columbia Centre for Disease Control, University of British Columbia, 655 West 12th Avenue, Vancouver, BC, V5Z 4R4, Canada. .,British Columbia Centre for Disease Control, 655 West 12th Avenue, Vancouver, BC, V5Z 4R4, Canada.
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22
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Kallestad H, Jacobsen HB, Landrø NI, Borchgrevink PC, Stiles TC. The role of insomnia in the treatment of chronic fatigue. J Psychosom Res 2015; 78:427-432. [PMID: 25498318 DOI: 10.1016/j.jpsychores.2014.11.022] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2014] [Revised: 11/26/2014] [Accepted: 11/30/2014] [Indexed: 12/16/2022]
Abstract
BACKGROUND The definition of Chronic Fatigue Syndrome (CFS) overlaps with definitions of insomnia, but there is limited knowledge about the role of insomnia in the treatment of chronic fatigue. AIMS To test if improvement of insomnia during treatment of chronic fatigue was associated with improved outcomes on 1) fatigue and 2) cortisol recovery span during a standardized stress exposure. METHODS Patients (n = 122) with chronic fatigue received a 3.5-week inpatient return-to-work rehabilitation program based on Acceptance and Commitment Therapy, and had been on paid sick leave>8 weeks due their condition. A physician and a psychologist examined the patients, assessed medication use, and SCID-I diagnoses. Patients completed self-report questionnaires measuring fatigue, pain, depression, anxiety, and insomnia before and after treatment. A subgroup (n = 25) also completed the Trier Social Stress Test for Groups (TSST-G) before and after treatment. Seven cortisol samples were collected during each test and cortisol spans for the TSST-G were calculated. RESULTS A hierarchical regression analysis in nine steps showed that insomnia improvement predicted improvement in fatigue, independently of age, gender, improvement in pain intensity, depression and anxiety. A second hierarchical regression analysis showed that improvement in insomnia significantly predicted the cortisol recovery span after the TSST-G independently of improvement in fatigue. CONCLUSION Improvement in insomnia severity had a significant impact on both improvement in fatigue and the ability to recover from a stressful situation. Insomnia severity may be a maintaining factor in chronic fatigue and specifically targeting this in treatment could increase treatment response.
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Affiliation(s)
- Håvard Kallestad
- Norwegian University of Science and Technology, Department of Neuroscience, Trondheim, Norway; St. Olav's University Hospital, Department of Østmarka, Trondheim, Norway.
| | - Henrik B Jacobsen
- St. Olav's University Hospital, Hysnes Rehabilitation Center, Trondheim, Norway; St. Olav's University Hospital, National Competence Center for Pain and Complex Disorders, Trondheim, Norway; Norwegian University of Science and Technology, Department of Circulation and Medical Imaging, Trondheim, Norway
| | - Nils Inge Landrø
- St. Olav's University Hospital, Hysnes Rehabilitation Center, Trondheim, Norway; Norwegian University of Science and Technology, Department of Circulation and Medical Imaging, Trondheim, Norway; University of Oslo, Department of Psychology, Oslo, Norway
| | - Petter C Borchgrevink
- St. Olav's University Hospital, Hysnes Rehabilitation Center, Trondheim, Norway; St. Olav's University Hospital, National Competence Center for Pain and Complex Disorders, Trondheim, Norway; Norwegian University of Science and Technology, Department of Circulation and Medical Imaging, Trondheim, Norway
| | - Tore C Stiles
- St. Olav's University Hospital, National Competence Center for Pain and Complex Disorders, Trondheim, Norway; University of Oslo, Department of Psychology, Oslo, Norway; Norwegian University of Science and Technology, Department of Psychology, Trondheim, Norway
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Tobback E, Mariman A, Heytens S, Declercq T, Bouwen A, Spooren D, Snoeck P, Van Dessel K, D'Hooghe S, Rimbaut S, Vogelaers D. A multidisciplinary network for the care of abnormal fatigue and chronic fatigue syndrome in the provinces of East and West Flanders in Belgium. Acta Clin Belg 2014; 69:327-34. [PMID: 25056488 DOI: 10.1179/2295333714y.0000000056] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
The organization of care for patients with the chronic fatigue syndrome (CFS) in tertiary care referral centres from 2002 onwards, was negatively evaluated by the Belgian Health Care Knowledge Centre on the endpoint of socio-professional reintegration. Subsequently, the federal health authorities asked for the elaboration of a new and innovative model of stepped care, aiming at improved integration of diagnosis and treatment into primary care and between levels of health care for patients with CFS. The reference centre of the University Hospital Ghent took the initiative of recruiting partners in the Belgian provinces of East and West Flanders to guarantee the care for patients with medically unexplained symptoms, in particular abnormal fatigue and CFS. A new and innovative care model, in which general practitioners play a central role, emphasizes the importance of early recognition of the patient 'at risk', correct diagnosis and timely referral. Early detection and intervention is essential in order to avoid or minimize illness progression towards chronicity, to safeguard opportunities for significant health improvement as well as to enhance successful socio-professional reintegration. This approach covers both the large sample of patients developing somatic complaints without obvious disease in an early phase as well as the more limited group of patients with chronic illness, including CFS. Cognitive behavioural therapy and graded exposure/exercise therapy are the evidence based main components of therapy in the latter. A biopsychosocial model underlies the proposed path of care.
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Broadbent S, Coutts R. The protocol for a randomised controlled trial comparing intermittent and graded exercise to usual care for chronic fatigue syndrome patients. Sports Med Arthrosc Rehabil Ther Technol 2013; 5:16. [PMID: 24001271 PMCID: PMC3848853 DOI: 10.1186/2052-1847-5-16] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2013] [Accepted: 08/20/2013] [Indexed: 11/10/2022]
Abstract
Background Chronic Fatigue Syndrome is a debilitating disorder with an unknown aetiology but suspected multifactorial origins. Common “triggers” include severe viral infections and emotional stress. Recent studies have also found evidence of immune dysfunction and elevated inflammatory cytokines in CFS patients, but there has been considerable variation in the outcome measures and magnitude of these studies. Currently, there is no cure for CFS but treatments include rest, specialist medical care, cognitive behavioural therapy, and graded (self-paced) exercise. To date, several studies have examined the efficacy of graded exercise with or without Cognitive Behavioural Therapy, with some success for patients. However, improvements in functional capacity have not necessarily correlated with improvements in immune function, fatigue or other symptoms. This 12-week pilot trial compares graded and intermittent exercise to normal care, measuring physiological outcomes, fatigue levels, immune function and wellness. Methods/design 90 patients aged between 16 to 60 years, who meet the diagnostic criteria for CFS and have been diagnosed by their medical practitioner, will be randomly recruited into groups consisting of Intermittent exercise, Graded exercise and usual care (Control). The outcomes will be measured pre-study (Week 0) and post-study (Week 13). Primary outcomes are VO2peak, anaerobic threshold, peak power, levels of fatigue, immune cell (CD3+CD4+, CD3+CD8+, CD19+, CD 16+CD56+) concentrations and activation. Secondary outcomes include onset of secondary CFS symptoms (e.g. fever, swollen lymph nodes), wellness, mood and sleep patterns. Primary analysis will be based on intention to treat using logistic regression models to compare treatments. Quantitative data will be analysed using repeated measures ANOVA with a linear model, and Cohen’s effect size. Qualitative data such as participants’ responses (e.g. changes in mood and other reactions) following the exercise modalities will be read and sections demarcated. A code will be applied to each segment. A prevalence of codes will be considered thematically. Discussion The results of the trial will provide information about the efficacy of intermittent and graded exercise compared to usual care (rest and lifestyle recommendations), contributing to the evidence for best-practice CFS management. Trial registration Australia and New Zealand Clinical Trials Registry ACTRN12612001241820.
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Affiliation(s)
- Suzanne Broadbent
- School of Health and Human Sciences, Southern Cross University, PO Box 157, Lismore, NSW 2480, Australia.
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Fuller-Thomson E, Mehta R, Sulman J. Long-term parental unemployment in childhood and subsequent chronic fatigue syndrome. ISRN FAMILY MEDICINE 2013; 2013:978250. [PMID: 24959579 PMCID: PMC4041243 DOI: 10.5402/2013/978250] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2012] [Accepted: 12/24/2012] [Indexed: 11/23/2022]
Abstract
Objective. The association between long-term parental unemployment in childhood and chronic fatigue syndrome was examined in a population-based sample of women. Methods. A secondary analysis of data from a regionally representative sample of women (n = 7, 288) from the Canadian Community Health Survey (2005) was conducted using logistic regression. Age and race as well as the following clusters of factors were controlled for: (1) other childhood adversities, (2) adult health behaviors and hypertension, (3) adult stressors and socioeconomic status, and (4) adult mental health. Results. When adjusting for age and race only, the odds ratio of chronic fatigue syndrome among those reporting parental unemployment was 4.12 (95% CI: 2.60, 6.52) compared to those not reporting parental unemployment. When controlling for age and race plus all four clusters of factors the odds ratio for chronic fatigue syndrome dropped slightly to 3.05 (95% CI: 1.81, 5.14), but remained statistically significant. Conclusions. This study provides evidence for a significant association between long-term parental unemployment in childhood and chronic fatigue syndrome even after controlling for a wide range of potential risk factors.
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Affiliation(s)
- Esme Fuller-Thomson
- Factor-Inwentash Faculty of Social Work, University of Toronto, 246 Bloor Street West, Toronto, ON, Canada M5S 1A1 ; Department of Family and Community Medicine, University of Toronto, Toronto, ON, Canada M5G 1V7
| | - Rukshan Mehta
- Factor-Inwentash Faculty of Social Work, University of Toronto, 246 Bloor Street West, Toronto, ON, Canada M5S 1A1
| | - Joanne Sulman
- Factor-Inwentash Faculty of Social Work, University of Toronto, 246 Bloor Street West, Toronto, ON, Canada M5S 1A1 ; Theodore J. Freedman Department of Social Work, Mount Sinai Hospital, Toronto, ON, Canada M5G 1X5
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Arroll MA, Howard A. A preliminary prospective study of nutritional, psychological and combined therapies for myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) in a private care setting. BMJ Open 2012; 2:bmjopen-2012-001079. [PMID: 23166120 PMCID: PMC3533117 DOI: 10.1136/bmjopen-2012-001079] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a condition characterised by severe and persistent fatigue, neurological disturbances, autonomic and endocrine dysfunctions and sleep difficulties that have a pronounced and significant impact on individuals' lives. Current National Institute for Health and Clinical Excellence guidelines within the UK suggest that this condition should be treated with cognitive behavioural therapy and/or graded exercise therapy, where appropriate. There is currently a lack of an evidence base concerning alternative techniques that may be beneficial to those with ME/CFS. OBJECTIVES This study aimed to investigate whether three modalities of psychology, nutrition and combined treatment influenced symptom report measures in those with ME/CFS over a 3-month time period and whether there were significant differences in these changes between groups. DESIGN AND SETTING This is a preliminary prospective study with one follow-up point conducted at a private secondary healthcare facility in London, UK. PARTICIPANTS 138 individuals (110 females, 79.7%; 42 participants in psychology, 44 in nutrition and 52 in combined) participated at baseline and 72 participants completed the battery of measures at follow-up (52.17% response rate; 14, 27 and 31 participants in each group, respectively). OUTCOME MEASURES Self-reported measures of ME/CFS symptoms, functional ability, multidimensional fatigue and perceived control. RESULTS Baseline comparisons showed those in the combined group had higher levels of fatigue. At follow-up, all groups saw improvements in fatigue, functional ability and symptomatology; those within the psychology group also experienced a shift in perceived control over time. CONCLUSIONS This study provides early evidence that psychological, nutritional and combined techniques for the treatment of ME/CFS may influence symptomatology, fatigue, function and perceived control. However, these results must be viewed with caution as the allocation to groups was not randomised, there was no control group and the study suffered from high drop-out rates.
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Bansal AS, Bradley AS, Bishop KN, Kiani-Alikhan S, Ford B. Chronic fatigue syndrome, the immune system and viral infection. Brain Behav Immun 2012; 26:24-31. [PMID: 21756995 DOI: 10.1016/j.bbi.2011.06.016] [Citation(s) in RCA: 144] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2011] [Revised: 06/14/2011] [Accepted: 06/28/2011] [Indexed: 01/04/2023] Open
Abstract
The chronic fatigue syndrome (CFS), as defined by recent criteria, is a heterogeneous disorder with a common set of symptoms that often either follows a viral infection or a period of stress. Despite many years of intense investigation there is little consensus on the presence, nature and degree of immune dysfunction in this condition. However, slightly increased parameters of inflammation and pro-inflammatory cytokines such as interleukin (IL) 1, IL6 and tumour necrosis factor (TNF) α are likely present. Additionally, impaired natural killer cell function appears evident. Alterations in T cell numbers have been described by some and not others. While the prevalence of positive serology for the common herpes viruses appears no different from healthy controls, there is some evidence of viral persistence and inadequate containment of viral replication. The ability of certain herpes viruses to impair the development of T cell memory may explain this viral persistence and the continuation of symptoms. New therapies based on this understanding are more likely to produce benefit than current methods.
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Affiliation(s)
- A S Bansal
- Dept. of Immunology, Epsom and St. Helier University Hospitals NHS Trust, Carshalton, Surrey, SM5 1AA and Chronic Illness Research Team, Stratford Campus, University of East London, London E15 4LZ, UK.
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High cocoa polyphenol rich chocolate may reduce the burden of the symptoms in chronic fatigue syndrome. Nutr J 2010; 9:55. [PMID: 21092175 PMCID: PMC3001690 DOI: 10.1186/1475-2891-9-55] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2010] [Accepted: 11/22/2010] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Chocolate is rich in flavonoids that have been shown to be of benefit in disparate conditions including cardiovascular disease and cancer. The effect of polyphenol rich chocolate in subjects with chronic fatigue syndrome (CFS) has not been studied previously. METHODS We conducted a double blinded, randomised, clinical pilot crossover study comparing high cocoa liquor/polyphenol rich chocolate (HCL/PR) in comparison to simulated iso-calorific chocolate (cocoa liquor free/low polyphenols(CLF/LP)) on fatigue and residual function in subjects with chronic fatigue syndrome. Subjects with CFS having severe fatigue of at least 10 out of 11 on the Chalder Fatigue Scale were enrolled. Subjects had either 8 weeks of intervention in the form of HCL/PR or CLF/LP, with a 2 week wash out period followed by 8 weeks of intervention with the other chocolate. RESULTS Ten subjects were enrolled in the study. The Chalder Fatigue Scale score improved significantly after 8 weeks of the HCL/PR chocolate arm [median (range) Exact Sig. (2-tailed)] [33 (25 - 38) vs. 21.5 (6 - 35) 0.01], but that deteriorated significantly when subjects were given simulated iso-calorific chocolate (CLF/CP) [ 28.5 (17 - 20) vs. 34.5 (13-26) 0.03]. The residual function, as assessed by the London Handicap scale, also improved significantly after the HCL/PR arm [0.49 (0.33 - 0.62) vs. 0.64 (0.44 - 0.83) 0.01] and deteriorated after iso-calorific chocolate [00.44 (0.43 - 0.68) vs. 0.36 (0.33 - 0.62)0.03]. Likewise the Hospital Anxiety and Depression score also improved after the HCL/PR arm, but deteriorated after CLF/CP. Mean weight remained unchanged throughout the trial. CONCLUSION This study suggests that HCL/PR chocolate may improve symptoms in subjects with chronic fatigue syndrome.
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Abstract
A telemedicine application has a better chance of being accepted if the users can easily handle it and if the application fulfils the clinical needs of both patients and professionals. This requires a methodology for development in which three key matters need to be dealt with: (1) clinical content; (2) design; and (3) outcome. Concerning the clinical content, telemedicine services for patients with chronic disorders that aim to increase their level of functioning need to monitor aspects of the patient's functioning and provide adequate feedback about this. Promising parameters of functioning are related to general physical activity and muscle activation patterns. Providing adequate feedback requires choices about the content of the information, the modality of the feedback and its timing. Unfortunately, research into effective feedback strategies is still in its infancy. Concerning the design it appears that the different stakeholders involved speak different languages, that there is a lack of knowledge about aspects related to acceptance and a lack of good methods to define user requirements. Scenario-based requirements analysis is a promising technique to overcome these barriers. Concerning the outcome, evaluation of telemedicine services in everyday clinical practice has been mainly directed at measurement of technical performance and user satisfaction. Large scale clinical evaluation studies with multiple end points are needed. This development methodology with its three aspects was used for a myofeedback-based teletreatment service. This showed that telemedicine applications can be developed that have the potential to make health care more effective, efficient and accessible.
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Affiliation(s)
- Miriam MR Vollenbroek-Hutten
- Roessingh Research and Development,
Enschede
- Faculty of Electrical Engineering, Mathematics and Computer Science, University of Twente,
Enschede, The Netherlands
| | - Hermie J Hermens
- Roessingh Research and Development,
Enschede
- Faculty of Electrical Engineering, Mathematics and Computer Science, University of Twente,
Enschede, The Netherlands
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Alegre J, Rosés JM, Javierre C, Ruiz-Baqués A, Segundo MJ, de Sevilla TF. [Nicotinamide adenine dinucleotide (NADH) in patients with chronic fatigue syndrome]. Rev Clin Esp 2010; 210:284-8. [PMID: 20447621 DOI: 10.1016/j.rce.2009.09.015] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2009] [Revised: 07/31/2009] [Accepted: 09/01/2009] [Indexed: 10/19/2022]
Abstract
BACKGROUND Nicotinamide adenine dinucleotide (NADH) may be depleted in chronic fatigue syndrome (SFC). The purpose of the study was to evaluate the efficacy of supplementation with NADH in these patients. MATERIAL AND METHODS A double blind, placebo controlled, 3 month long clinical trial was conducted. The patients were randomized to oral NADH oral 20mg or placebo during the first two months. The intensity of the fatigue, functional performance, mood state, functional impact of the fatigue, quality of life, sleep quality, exercise capacity and functional reserve as well as the investigator's and patient's opinion on the efficacy of the intervention prior to and at 30, 60 and 90 days of the onset of the treatment were evaluated. A stress test was performed in the baseline visit and at 60 days (last day of the double blind treatment). RESULTS A total of 86 patients, 77 of whom completed the study (mean age, 47 years, 72 women) were enrolled. No significant differences were found in most of the variable studied at the end of the study. Administration of NADH was associated to a decrease in anxiety condition of -1.0 points (p<0.05) and of -0.2 points (p=NS) in the placebo assigned group. Maximum heart rate after the stress test decreased a mean of -8.1l/min (p<0.05) in the NADH group and increased by +1.7l/min in the placebo group (p=0.73). No differences were found in the perception of efficacy with NADH and placebo, by the investigator and patients. CONCLUSIONS Administration of oral NADH was associated to a decrease in anxiety and maximum heart rate, after a stress test in patients with CFS. On the contrary, this treatment did not modify other clinical variables and the global functional performance.
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Affiliation(s)
- J Alegre
- Servicio de Medicina Interna, Hospital Vall d'Hebrón, Barcelona, España
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Singh IR, Gorzynski JE, Drobysheva D, Bassit L, Schinazi RF. Raltegravir is a potent inhibitor of XMRV, a virus implicated in prostate cancer and chronic fatigue syndrome. PLoS One 2010; 5:e9948. [PMID: 20376347 PMCID: PMC2848589 DOI: 10.1371/journal.pone.0009948] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2010] [Accepted: 03/11/2010] [Indexed: 11/29/2022] Open
Abstract
Background Xenotropic murine leukemia-related retrovirus (XMRV) is a recently discovered retrovirus that has been linked to human prostate cancer and chronic fatigue syndrome (CFS). Both diseases affect a large fraction of the world population, with prostate cancer affecting one in six men, and CFS affecting an estimated 0.4 to 1% of the population. Principal Findings Forty-five compounds, including twenty-eight drugs approved for use in humans, were evaluated against XMRV replication in vitro. We found that the retroviral integrase inhibitor, raltegravir, was potent and selective against XMRV at submicromolar concentrations, in MCF-7 and LNCaP cells, a breast cancer and prostate cancer cell line, respectively. Another integrase inhibitor, L-000870812, and two nucleoside reverse transcriptase inhibitors, zidovudine (ZDV), and tenofovir disoproxil fumarate (TDF) also inhibited XMRV replication. When combined, these drugs displayed mostly synergistic effects against this virus, suggesting that combination therapy may delay or prevent the selection of resistant viruses. Conclusions If XMRV proves to be a causal factor in prostate cancer or CFS, these discoveries may allow for rational design of clinical trials.
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Affiliation(s)
- Ila R Singh
- Department of Pathology, University of Utah, Salt Lake City, Utah, United States of America.
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Premorbid personality in chronic fatigue syndrome as determined by the Temperament and Character Inventory. Compr Psychiatry 2010; 51:78-85. [PMID: 19932830 DOI: 10.1016/j.comppsych.2009.02.002] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2008] [Revised: 01/30/2009] [Accepted: 02/02/2009] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND Using the Temperament and Character Inventory (TCI), we examined personality characteristics in patients with chronic fatigue syndrome (CFS) compared with healthy control subjects, and CFS patients with and without psychiatric diseases. There have been no previous reports assessing personality in CFS patients using the TCI. METHODS A total of 211 CFS patients and 90 control subjects completed the TCI and the Chalder Fatigue Scale questionnaires. RESULTS Compared with control subjects, CFS patients demonstrated significantly lower premorbid Novelty Seeking, and higher Harm Avoidance and persistence. The fatigue score for CFS patients with psychiatric diseases was higher than that for CFS patients without psychiatric diseases. Patients with CFS with psychiatric diseases showed lower premorbid Self-Directedness when compared with CFS patients without psychiatric diseases. The fatigue score was negatively correlated with premorbid Self-Directedness and Cooperativeness, and positively correlated with Harm Avoidance among CFS patients. CONCLUSION This study supported the stereotyped image of CFS patients as perfectionists, which is similar to the Persistence score, and neurotics, which is similar to the Harm Avoidance score. Patients displaying greater neuroticisms and poorer social and communication skills, similar to the Self-Directedness and Cooperativeness scores, tend to have intercurrent psychiatry diseases and show more severe symptoms of CFS.
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Abstract
The reader may be eager to examine in which diseases ozonetherapy can be proficiently used and she/he will be amazed by the versatility of this complementary approach (Table 9 1). The fact that the medical applications are numerous exposes the ozonetherapist to medical derision because superficial observers or sarcastic sceptics consider ozonetherapy as the modern panacea. This seems so because ozone, like oxygen, is a molecule able to act simultaneously on several blood components with different functions but, as we shall discuss, ozonetherapy is not a panacea. The ozone messengers ROS and LOPs can act either locally or systemically in practically all cells of an organism. In contrast to the dogma that “ozone is always toxic”, three decades of clinical experience, although mostly acquired in private clinics in millions of patients, have shown that ozone can act as a disinfectant, an oxygen donor, an immunomodulator, a paradoxical inducer of antioxidant enzymes, a metabolic enhancer, an inducer of endothelial nitric oxide synthase and possibly an activator of stem cells with consequent neovascularization and tissue reconstruction.
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Affiliation(s)
- Velio Bocci
- Department of Physiology, University of Siena, via A. Moro 2, 53100 Siena, Italy
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Jenkins M, Rayman M. Nutrient intake is unrelated to nutrient status in patients with chronic fatigue syndrome. ACTA ACUST UNITED AC 2009. [DOI: 10.1080/13590840600681751] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Seidel S, Hartl T, Weber M, Matterey S, Paul A, Riederer F, Gharabaghi M, Wöber-Bingöl Ç, Wöber C. Quality of Sleep, Fatigue and Daytime Sleepiness in Migraine—A Controlled Study. Cephalalgia 2009; 29:662-9. [DOI: 10.1111/j.1468-2982.2008.01784.x] [Citation(s) in RCA: 86] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The objective of this study was to evaluate whether the quality of sleep and the degree of fatigue and daytime sleepiness are related to migraine. We investigated 489 subjects comprising 97 patients with eight or more, 77 patients with five to seven and 196 patients with one to four migraine days per month, and 119 migraine-free controls with fewer than six headache days per year. The patients were recruited via articles in newspapers not stressing the subject of the study. All participants underwent a semistructured interview and completed the Pittsburgh Sleep Quality Index (PSQI), the Fatigue Severity Scale (FSS), the Epworth Sleepiness Scale (ESS) and the Self-rating Depression Scale and the Self-rating Anxiety Scale. For statistical analysis we used two way MANOVAs, post hoc univariate two-way ANOVAs and Hochberg's GT2 tests as well as three-way mixed design ANOVAs. The PSQI total score was highest in patients with frequent migraine (5.9 ± 4.3) and lowest in controls (4.3 ± 2.5, P = 0.04). Four subscores of the PSQI showed similar statistically significant differences. The FSS and ESS scores did not differ in the four study groups. Analysing depression and anxiety revealed a significant impact on PSQI, FSS and ESS, but did not demonstrate interactions with migraine, thus suggesting that the impact of migraine is similar in patients without and with psychiatric comorbidity. In conclusion, the quality of sleep is decreased in patients with migraine, whereas fatigue and daytime sleepiness do not differ from healthy controls. The decreased quality of sleep in migraineurs is also a consequence of migraine itself and cannot be explained exclusively by comorbidity with depression or anxiety.
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Affiliation(s)
- S Seidel
- Department of Neurology, Medical University of Vienna, Vienna, Austria
| | - T Hartl
- Department of Neurology, Medical University of Vienna, Vienna, Austria
| | - M Weber
- Department of Radiology, Medical University of Vienna, Vienna, Austria
| | - S Matterey
- Department of Neurology, Medical University of Vienna, Vienna, Austria
| | - A Paul
- Department of Neurology, Medical University of Vienna, Vienna, Austria
| | - F Riederer
- Department of Neurology, Medical University of Vienna, Vienna, Austria
| | - M Gharabaghi
- Department of Neurology, Medical University of Vienna, Vienna, Austria
| | - Ç Wöber-Bingöl
- Department of Child and Adolescent Psychiatry, Medical University of Vienna, Vienna, Austria
| | - C Wöber
- Department of Neurology, Medical University of Vienna, Vienna, Austria
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Schrijvers D, Van Den Eede F, Maas Y, Cosyns P, Hulstijn W, Sabbe BGC. Psychomotor functioning in chronic fatigue syndrome and major depressive disorder: a comparative study. J Affect Disord 2009; 115:46-53. [PMID: 18817977 DOI: 10.1016/j.jad.2008.08.010] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2008] [Revised: 08/16/2008] [Accepted: 08/17/2008] [Indexed: 10/21/2022]
Abstract
BACKGROUND Studies comparing chronic fatigue syndrome (CFS) and major depressive disorder (MDD) reported similarities as well as differences between the two disorders. However, whereas psychomotor symptoms have been studied extensively in MDD, such research in CFS is more limited. Moreover, the few studies that compared cognitive and motor performance in MDD and CFS yielded inconsistent results. This study hence directly compares fine psychomotor functioning in both syndromes. METHODS Thirty-eight patients diagnosed with CFS without a current major depressive episode (MDE), 32 MDD patients with a current MDE and 38 healthy controls performed two computerized copying tasks differing in complexity: a line-copying task that mainly requires motor effort and a figure-copying task requiring additional cognitive efforts. All participants were female. A multivariate general linear model was used to compute group differences. RESULT Overall, both patient groups performed more slowly than the controls. Compared to CFS patients, patients with MDD needed significantly more time to copy the single lines but no such between-group performance difference was observed for the figure reproductions. In this latter copying task, the increasing complexity of the figures resulted in prolonged reaction times for all three participant groups with the effect being larger and the magnitude similar for the two patient groups. LIMITATIONS All patients were female and most were on psychotropic medication. CONCLUSIONS Both the MDD and CFS patients tested demonstrated an overall fine motor slowing, with the motor component being more affected in the MDD patients than in the CFS patients while both patient groups showed similar cognitive impairments.
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Affiliation(s)
- D Schrijvers
- Collaborative Antwerp Psychiatric Research Institute, Faculty of Medicine, University of Antwerp, Universiteitsplein 1, 2610 Antwerp, Belgium.
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Nijs J, Thielemans A. Kinesiophobia and symptomatology in chronic fatigue syndrome: a psychometric study of two questionnaires. Psychol Psychother 2008; 81:273-83. [PMID: 18644213 DOI: 10.1348/147608308x306888] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVES The aims of the study were to examine the reliability of the Dutch and French versions of the Tampa scale kinesiophobia (TSK) version chronic fatigue syndrome (CFS), and to examine the reliability and validity of the Dutch and French versions of the CFS symptom list. DESIGN Repeated-measures design. METHODS Native Dutch speakers (N=100) and native French (N=48) speakers fulfilling the diagnostic criteria for CFS were asked to list the five most important symptoms and to complete the TSK-CFS, the CFS symptom list, and the Short Form 36 Health Status Survey or SF-36. A modified version of the TSK-CFS and the CFS symptom list was filled in within 24 hours of the first assessment. RESULTS The French and Dutch version of the TSK-CFS and CFS symptom lists displayed good reliability (ICC>or=.83). The CFS symptom list was internally consistent (Cronbach's alpha>or=.93) and concurrently valid with the SF-36. For the native Dutch and French speakers, respectively, 82 and 78% of the self-reported symptoms matched the content of CFS symptom list. CONCLUSIONS The results are in support of the psychometric properties of the French and Dutch versions of both the TSK-CFS and the CFS symptom list for assessing kinesiophobia and symptom severity, respectively.
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Affiliation(s)
- Jo Nijs
- Department of Human Physiology, Vrije Universiteit Brussel, Brussel, Belgium.
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Bains W. Treating Chronic Fatigue states as a disease of the regulation of energy metabolism. Med Hypotheses 2008; 71:481-8. [PMID: 18684570 DOI: 10.1016/j.mehy.2008.02.022] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2008] [Revised: 02/17/2008] [Accepted: 02/19/2008] [Indexed: 11/17/2022]
Abstract
Chronic Fatigue Syndrome is a physiological state in which the patient feels high levels of fatigue without an obvious organic cause, which affects around 1 in 400 people in the developed world. A wide range of causes have been suggested, including immune or hormonal dysfunction, viral or bacterial infection, and psychological somatization. It is likely that several causes are needed to trigger the disease, and that the triggers are different from the mechanisms that maintain fatigue over months or years. Many treatments have been tested for CFS, with very limited success - a programme of combined CBT and graded exercise shows the most effect. I suggest that patients with CFS have a reduced ability to increase mitochondrial energy production when exertion requires it, with fewer mitochondria that are each more efficient, and hence nearer to their maximum energy output, than normal. A range of indirect evidence suggests that the renin-angiotensin system stimulates mitochondrial responsiveness and reduces mitochondrial efficiency: chronic under-stimulation of this system could contribute to CFS aetiology. If correct, this means that CFS can be successfully treated with RAS agonists (eg angiotensin mimetics), or adrenergic agonists. It also suggests that there will be a positive link between the use of adrenergic- and RAS-blocking drugs and CFS incidence, and a negative link between adrenergic agonist use and CFS.
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Affiliation(s)
- William Bains
- Delta G Ltd, 37 The Moor, Melbourn, Royston, Herts SG8 6ED, UK.
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Cho HJ, Bhugra D, Wessely S. 'Physical or psychological?'- a comparative study of causal attribution for chronic fatigue in Brazilian and British primary care patients. Acta Psychiatr Scand 2008; 118:34-41. [PMID: 18498433 DOI: 10.1111/j.1600-0447.2008.01200.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVE Causal attribution influences symptom experience, help-seeking behaviour and prognosis in chronic fatigue syndrome. We compared causal attribution of patients with unexplained chronic fatigue (UCF) in Brazil and Britain. METHOD Primary care attenders in São Paulo (n = 3914) and London (n = 2459) were screened for the presence of UCF. Those with UCF (São Paulo n = 452; London n = 178) were assessed for causal attribution (physical vs. psychosocial), perceived chronicity (i.e. reported duration of fatigue) and disability. RESULTS British UCF patients were more likely to attribute their fatigue to physical causes (adjusted odds ratio 1.70, P = 0.037) and perceived their fatigue to be more chronic (adjusted beta 0.15, P = 0.002). There was no significant difference in current disability (adjusted beta -0.01, P = 0.81). CONCLUSION Despite similar disability levels, UCF patients in different cultural settings presented different attributions and perceptions about their illness. Sociocultural factors may have an important role in shaping illness attribution and perception around chronic fatigue.
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Affiliation(s)
- H J Cho
- Department of Psychiatry, Federal University of São Paulo, São Paulo, Brazil.
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Eminson DM. Medically unexplained symptoms in children and adolescents. Clin Psychol Rev 2007; 27:855-71. [PMID: 17804131 DOI: 10.1016/j.cpr.2007.07.007] [Citation(s) in RCA: 99] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2005] [Revised: 06/04/2006] [Accepted: 02/07/2007] [Indexed: 01/30/2023]
Abstract
A review is presented of the range of medically unexplained symptoms (MUS) in children and adolescents, with an account of the main presentations that are recognised in clinical settings in paediatric and children's mental health services. A summary of both epidemiological and clinical studies of symptoms and their associations is given, followed by a brief overview of aetiological theories and of management interventions.
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Affiliation(s)
- D Mary Eminson
- Bolton Hospitals NHS Trust, Child and Adolescent Mental Health Services, Royal Bolton Hospital, Minerva Road, Farnworth, Bolton BL4 OJR, UK.
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Cho HJ, Costa E, Menezes PR, Chalder T, Bhugra D, Wessely S. Cross-cultural validation of the Chalder Fatigue Questionnaire in Brazilian primary care. J Psychosom Res 2007; 62:301-4. [PMID: 17324680 DOI: 10.1016/j.jpsychores.2006.10.018] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2006] [Revised: 09/28/2006] [Accepted: 10/24/2006] [Indexed: 10/23/2022]
Abstract
OBJECTIVE The Chalder Fatigue Questionnaire (CFQ) is an instrument used to measure physical and mental fatigue. We translated and adapted the questionnaire and tested its reliability and validity in a Brazilian primary care setting. METHOD A pilot study with 204 consecutive primary care attenders in Sao Paulo, Brazil, verified the internal consistency and factor structure of the questionnaire. After some modifications through a rigorous translation, back-translation, and cross-cultural adaptation procedure, a validation study was conducted with 304 attenders, who also completed the fatigue section of the Revised Clinical Interview Schedule (CIS-R). RESULTS The internal consistency of the Brazilian CFQ slightly improved from the pilot to the validation study: Cronbach's alpha from .86 to .88. The two-factor structure (physical and mental fatigue) also improved. According to the receiver operating curve analysis with the fatigue section of the CIS-R as the standard criterion, 3/4 was chosen as the cutoff for Brazilian primary care (sensitivity 69.1% and specificity 79.4%). CONCLUSION The Brazilian CFQ had good reliability and validity. The cutoff was determined as 3/4 and the factor structure of the English CFQ was closely reproduced.
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Affiliation(s)
- Hyong Jin Cho
- Institute of Psychiatry, King's College London, London, United Kingdom.
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Gray SE, Rutter DR. Illness representations in young people with Chronic Fatigue Syndrome. Psychol Health 2007. [DOI: 10.1080/14768320600774595] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Bazelmans E, Prins J, Bleijenberg G. Cognitive Behavior Therapy for Relatively Active and for Passive Chronic Fatigue Syndrome Patients. COGNITIVE AND BEHAVIORAL PRACTICE 2006. [DOI: 10.1016/j.cbpra.2006.02.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Zhang W, Liu Z, Wu T, Peng W. Acupuncture for chronic fatigue syndrome. THE COCHRANE DATABASE OF SYSTEMATIC REVIEWS 2006. [DOI: 10.1002/14651858.cd006010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Wearden AJ, Riste L, Dowrick C, Chew-Graham C, Bentall RP, Morriss RK, Peters S, Dunn G, Richardson G, Lovell K, Powell P. Fatigue Intervention by Nurses Evaluation--the FINE Trial. A randomised controlled trial of nurse led self-help treatment for patients in primary care with chronic fatigue syndrome: study protocol. [ISRCTN74156610]. BMC Med 2006; 4:9. [PMID: 16603058 PMCID: PMC1456982 DOI: 10.1186/1741-7015-4-9] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2006] [Accepted: 04/07/2006] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Chronic fatigue syndrome, also known as ME (CFS/ME), is a condition characterised primarily by severe, disabling fatigue, of unknown origin, which has a poor prognosis and serious personal and economic consequences. Evidence for the effectiveness of any treatment for CFS/ME in primary care, where most patients are seen, is sparse. Recently, a brief, pragmatic treatment for CFS/ME, based on a physiological dysregulation model of the condition, was shown to be successful in improving fatigue and physical functioning in patients in secondary care. The treatment involves providing patients with a readily understandable explanation of their symptoms, from which flows the rationale for a graded rehabilitative plan, developed collaboratively with the therapist. The present trial will test the effectiveness and cost-effectiveness of pragmatic rehabilitation when delivered by specially trained general nurses in primary care. We selected a client-centred counselling intervention, called supportive listening, as a comparison treatment. Counselling has been shown to be as effective as cognitive behaviour therapy for treating fatigue in primary care, is more readily available, and controls for supportive therapist contact time. Our control condition is treatment as usual by the general practitioner (GP). METHODS AND DESIGN This study protocol describes the design of an ongoing, single-blind, pragmatic randomized controlled trial of a brief (18 week) self-help treatment, pragmatic rehabilitation, delivered by specially trained nurse-therapists in patients' homes, compared with nurse-therapist delivered supportive listening and treatment as usual by the GP. An economic evaluation, taking a societal viewpoint, is being carried out alongside the clinical trial. Three adult general nurses were trained over a six month period to deliver the two interventions. Patients aged over 18 and fulfilling the Oxford criteria for CFS are assessed at baseline, after the intervention, and again one year later. Primary outcomes are self-reported physical functioning and fatigue at one year, and will be analysed on an intention-to-treat basis. A qualitative study will examine the interventions' mechanisms of change, and also GPs' drivers and barriers towards referral.
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Affiliation(s)
- AJ Wearden
- School of Psychological Sciences, University of Manchester, Manchester, M13 9PL, UK
| | - L Riste
- School of Psychological Sciences, University of Manchester, Manchester, M13 9PL, UK
| | - C Dowrick
- School of Population, Community and Behavioural Sciences, University of Liverpool, Liverpool, L69 3GB, UK
| | - C Chew-Graham
- Division of Primary Care, Rusholme Academic Unit, University of Manchester, Manchester, M14 5NP, UK
| | - RP Bentall
- School of Psychological Sciences, University of Manchester, Manchester, M13 9PL, UK
| | - RK Morriss
- Department of Psychiatry, Queens Medical Centre, University of Nottingham, Nottingham, NG7 2UH, UK
| | - S Peters
- Division of Psychiatry, University of Liverpool, Liverpool, L69 3GA, UK
| | - G Dunn
- Division of Epidemiology and Health Sciences, University of Manchester, Manchester, M13 9PT, UK
| | - G Richardson
- Centre for Health Economics, University of York, York, YO10 5DD, UK
| | - K Lovell
- School of Nursing, Midwifery and Social Work, University of Manchester, Manchester, M13 9PL, UK
| | - P Powell
- Infectious Diseases Unit, Royal Liverpool University Hospital, Liverpool, L7 8XP UK
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Affiliation(s)
- Jacques Cornuz
- Department of Community Medicine and Public Health, University Outpatient Clinic, and University Hospital, Lausanne, Switzerland
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Abstract
During the past two decades, there has been heated debate about chronic fatigue syndrome (CFS) among researchers, practitioners, and patients. Few illnesses have been discussed so extensively. The existence of the disorder has been questioned, its underlying pathophysiology debated, and an effective treatment opposed; patients' organisations have participated in scientific discussions. In this review, we look back on several controversies over CFS with respect to its definition, diagnosis, pathophysiology, and treatment. We review issues of epidemiology and clinical manifestations, focusing on the scientific status of CFS. Modern neuroscience and genetics research offer interesting findings for new hypotheses on the aetiology and pathogenesis of the illness. We also discuss promising future issues, such as psychopathophysiology and mechanisms of improvement, and suggest multidisciplinary prospective studies of CFS and fatigue in the general population. These studies should pay particular attention to similarities to and differences from functional somatic syndromes and other fatiguing conditions.
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Affiliation(s)
- Judith B Prins
- Department of Medical Psychology, Radboud University Nijmegen Medical Centre, Nijmegen, Netherlands.
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Nijs J, Vaes P, De Meirleir K. The Chronic Fatigue Syndrome Activities and Participation Questionnaire (CFS-APQ): An overview. Occup Ther Int 2006; 12:107-21. [PMID: 16136868 DOI: 10.1002/oti.19] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Chronic fatigue syndrome (CFS) is characterized by severe fatigue and a reduction in activity levels. The purpose of this study was to provide an overview of design, reliability, and validity of the CFS Activities and Participation Questionnaire (CFS-APQ). The CFS-APQ was constructed based on a retrospective analysis of the Karnofsky Performance Status Questionnaire and the Activities of Daily Living Questionnaire (n = 141). In a reliability study of 34 participants the test-retest reliability coefficient of the CFS-APQ was 0.95. In two different studies, the Cronbach alpha coefficient for internal consistency varied between 0.87 (n = 88) and 0.94 (n = 47). The CFS-APQ was administered to 47 patients who listed 183 activities that had become difficult due to their chronic symptoms, and 157 (85.8%) answers matched the content of the CFS-APQ. The outcome of a cross-sectional study (n = 88) studying the correlations between the Medical Outcomes Short Form 36 Health Status Survey subscale scores and the CFS-APQ supported the validity of the CFS-APQ. The CFS-APQ scores correlated with a behavioural assessment of the patients' performance of activities encompassed by the questionnaire (r = 0.29-0.55; n = 63), and correlated with exercise capacity parameters (r = 0.26-0.39; n = 77) obtained during a maximal exercise capacity stress test. Finally, the CFS-APQ correlated with visual analogue scales for pain (r = 0.51) and fatigue (r = 0.50; n = 47). It is concluded that the CFS-APQ generates reliable and valid data, and can be used as a clinical measure of disease severity in patients with CFS. Future studies should aim at examining the sensitivity of the CFS-APQ.
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Affiliation(s)
- Jo Nijs
- Department of Physiology, Faculty of Physical Education and Physiotherapy, Vrije Universiteit Brussel (VUB), Brussels, Belgium.
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Iwakami E, Arashima Y, Kato K, Komiya T, Matsukawa Y, Ikeda T, Arakawa Y, Oshida S. Treatment of chronic fatigue syndrome with antibiotics: pilot study assessing the involvement of Coxiella burnetii infection. Intern Med 2005; 44:1258-63. [PMID: 16415546 DOI: 10.2169/internalmedicine.44.1258] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
OBJECTIVE To examine whether Coxiella burnetii (C. burnetii) is involved in chronic fatigue syndrome (CFS), we administered tetracycline antibiotics to subjects with CFS, and followed changes in clinical symptoms, PCR findings, and C. burnetii antibody titers. PATIENTS AND METHODS The subjects were 8 patients with CFS and 213 with nonspecific complaints such as chronic fatigue and low-grade fever for several months or longer but not meeting the diagnostic criteria for CFS. All were examined for C. burnetii infection by nested PCR and the indirect immunofluorescence test (IF). RESULTS Four CFS patients (the CFS group) and 54 controls [the post-Q fever fatigue syndrome (QFS) group] positive for C. burnetii were treated mainly with minocycline or doxycycline (100 mg/day) for 3 months. After treatment, all 58 patients tested negative for C. burnetii infection. In the CFS group, no significant difference was noted between the mean pre- and post-treatment temperatures or headache scores. Similarly, there was no significant improvement in performance status (PS) scores. In the QFS group, however, mean temperatures and headache scores were significantly decreased after treatment (p<0.001). PS scores were also improved. CONCLUSION These results suggest the possibility of direct involvement of C. burnetii in the pathological state of CFS to be low, despite the C. burnetii infection rate being high in CFS patients. This is a pilot study and further larger investigations are necessary to confirm our preliminary results.
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Affiliation(s)
- Etsuko Iwakami
- Department of Legal Medicine, Nihon University School of Medicine, Tokyo, Japan
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