ME/CFS Evidence Browser — Classified Studies on Myalgic Encephalomyelitis

2422 studies

1621–1640 of 2,422 studies

E3 PreliminaryMechanismPEM not requiredCross-Sectional

Gene expression profile of empirically delineated classes of unexplained chronic fatigue.

Carmel, Liran, Efroni, Sol, White, Peter D et al.·Pharmacogenomics·2006

Researchers examined genes in blood samples from 111 women with unexplained chronic fatigue to see if different types of fatigue had different gene patterns. They used computer analysis to identify specific genes that were active or inactive in different fatigue groups. They found that certain genes were consistently different between fatigued and healthy people, while other genes only differed in specific fatigue subgroups.

Biomarkers

E3 PreliminaryReviewPEM not requiredReview-Narrative

Protective efficacy, immunotherapeutic potential, and safety of hepatitis B vaccines.

Zuckerman, Jane N·Journal of medical virology·2006

This review examines hepatitis B vaccines, which are widely used and have an excellent safety record across over 150 countries. The authors specifically addressed concerns about whether these vaccines cause chronic fatigue syndrome, and found no evidence of such a connection. The study looked at how well these vaccines work, why some people don't respond to them, and potential new ways to use them to treat hepatitis B infection.

Immune System

E3 PreliminaryMechanismPEM not requiredCross-Sectional

Gene expression correlates of unexplained fatigue.

Whistler, Toni, Taylor, Renee, Craddock, R Cameron et al.·Pharmacogenomics·2006

Researchers examined blood samples from hundreds of people to find which genes are connected to fatigue in ME/CFS. They looked at over 20,000 genes and found that 839 of them showed a relationship with fatigue levels. Many of these genes are involved in energy production and metabolism in the body, though about half of the genes they found don't yet have clear functions identified.

Energy Metabolism

E3 PreliminaryMechanismPEM not requiredMechanistic

Cardiovascular systemic regulation by plantar surface stimulation.

Madhavan, Guruprasad, Stewart, Julian M, McLeod, Kenneth J·Biomedical instrumentation & technology·2006

This study tested whether gentle vibrations applied to the bottom of the foot could help stabilize blood pressure and heart rate when people sit down. Researchers found that vibrations at a specific frequency (around 44 Hz) significantly reduced the normal drop in blood pressure that occurs with sitting, and were especially helpful for people whose blood pressure drops excessively.

Autonomic Nervous System

E3 PreliminaryReviewPEM not requiredReview-Narrative

[The problem of fatigue in neurological disorders].

Kumor, Klaudiusz, Pierzchała, Krystyna·Wiadomosci lekarskie (Warsaw, Poland : 1960)·2006

Fatigue is an extremely common and often severely disabling symptom in many neurological disorders, affecting 40–90% of patients with conditions like multiple sclerosis, Parkinson's disease, and stroke. This review explains that fatigue is a real medical symptom that should be carefully distinguished from depression, weakness, and sleepiness, though these conditions often occur together. Currently, doctors assess fatigue mainly through patient questionnaires, and there is no clear biological test or proven cure—treatments focus on addressing the underlying disease and using behavioral and psychological approaches.

Diagnostics

E3 PreliminaryCohortPEM not requiredCase-Control

Four problems with the clinical control of interstitial pneumonia, or chronic fatigue syndrome, using the megadose vitamin C infusion system with dehydroepiandrosterone-cortisol annex.

Kodama, Mitsuo, Kodama, Toshiko·In vivo (Athens, Greece)·2006

This study describes a clinic's experience treating patients with interstitial pneumonia (a lung condition) using high-dose vitamin C infusions combined with hormones and antibiotics since 1996. The authors discuss four main challenges they encountered: deciding whether to continue treatment when patients seemed stable, dealing with bacteria becoming resistant to antibiotics, observing bone marrow damage in one patient, and noting one patient developed breast cancer during treatment.

Immune System

E3 PreliminaryBehavioralPEM not requiredObservational

Chronic Fatigue Syndrome: An Evaluation of a Community Based Management Programme for Adolescents and their Families.

Ashby, Bernadette, Wright, Barry, Jordan, Jo·Child and adolescent mental health·2006

This study looked at how a community-based treatment program helped young people with ME/CFS and their families. Researchers interviewed teenagers and parents about their experience with an approach that combined physical rehabilitation with attention to both body and mind. The families reported improvements across the key areas addressed, and most valued this collaborative treatment method.

E3 PreliminaryReviewPEM not requiredReview-Narrative

Is human herpesvirus-6 a trigger for chronic fatigue syndrome?

Komaroff, Anthony L·Journal of clinical virology : the official publication of the Pan American Society for Clinical Virology·2006

This study reviews evidence about whether a virus called human herpesvirus-6 (HHV-6) might cause ME/CFS. Researchers found that active HHV-6 infection appears more frequently in ME/CFS patients than in healthy people, and the virus may be connected to some of the nervous system and immune system problems seen in ME/CFS. However, not all ME/CFS patients test positive for active HHV-6, suggesting it may only trigger the illness in some people.

Immune System

E3 PreliminaryMechanismPEM unclearCross-Sectional

Polymorphisms in genes regulating the HPA axis associated with empirically delineated classes of unexplained chronic fatigue.

Smith, Alicia K, White, Peter D, Aslakson, Eric et al.·Pharmacogenomics·2006

This study looked at whether different genetic variations in the stress-response system (HPA axis) and mood-related brain chemistry might explain why ME/CFS affects people differently. Researchers identified five distinct subgroups of people with chronic fatigue and found that three of these groups had different versions of specific genes compared to healthy people, suggesting that ME/CFS may not be one disease but rather several different conditions with different underlying genetic causes.

Endocrine Disruption

E3 PreliminaryReviewPEM unclearReview-Narrative

[Significance of the chronic fatigue syndrome in rehabilitation medicine--status and perspectives].

Gutenbrunner, C, Linden, M, Gerdes, N et al.·Die Rehabilitation·2005

This paper discusses how chronic fatigue and exhaustion affect people undergoing rehabilitation for various medical conditions. The authors reviewed how fatigue is defined, how often it occurs in different patient groups (from 50-90% depending on the condition), and whether rehabilitation can help improve it. They suggest that fatigue symptoms do improve somewhat with rehabilitation, though some symptoms can remain.

E3 PreliminaryCommentaryPEM not requiredEditorial

Pain in patients with chronic fatigue syndrome: does nitric oxide trigger central sensitisation?

Nijs, Jo, Van de Velde, Bart, De Meirleir, Kenny·Medical hypotheses·2005

This study proposes a theory about why ME/CFS patients experience widespread pain. The researchers suggest that a molecule called nitric oxide may cause the central nervous system (the brain and spinal cord) to become overly sensitive, amplifying pain signals throughout the body. They propose that viral infections or other pathogens associated with ME/CFS may trigger this chain reaction, and that behaviors like catastrophizing or avoiding activity may either contribute to or result from this heightened sensitivity.

Neuroinflammation

E3 PreliminaryBehavioralPEM unclearCase-Control

An under-active or over-active internal world? An exploration of parallel dynamics within psyche and soma, and the difficulty of internal regulation, in patients with Chronic Fatigue Syndrome and Myalgic Encephalomyelitis.

Driver, Christine·The Journal of analytical psychology·2005

This study examines how the mind and body become deeply connected in people with ME/CFS, making it hard to regulate both emotions and physical symptoms. Through detailed analysis of one patient's therapy, the researcher explores how early experiences with parents may affect how the body and mind communicate and function together in ME/CFS.

E3 PreliminaryMechanismPEM not requiredMechanistic

Pathogenesis of parvovirus B19 infection: host gene variability, and possible means and effects of virus persistence.

Kerr, J R·Journal of veterinary medicine. B, Infectious diseases and veterinary public health·2005

This study examined how parvovirus B19 might trigger chronic fatigue syndrome (CFS) in some people. Researchers found that patients with prolonged symptoms after B19 infection had high levels of inflammatory chemicals in their blood, and identified certain genetic variations that may make some people more susceptible to developing CFS after B19 infection. They also discovered that the virus may persist in the body by hiding in human genes, and found that people carrying B19 virus DNA had altered expression of several genes involved in cell structure and immune function.

Immune System

E3 PreliminaryReviewPEM unclearReview-Narrative

A patient's journey with myalgic encephalomyelitis.

Ong, Bie Nio, Evans, Daphne, Bartlam, Andrew·BMJ (Clinical research ed.)·2005

This study tells the personal story of one patient's experience living with ME/CFS, documenting how the illness affected their daily life, symptoms, and journey seeking medical care. Through this individual's account, the researchers highlight the real challenges people with ME/CFS face in their everyday activities and interactions with healthcare providers. The patient's narrative shows how ME/CFS impacts not just physical health, but also emotional wellbeing and social relationships.

E3 PreliminaryReviewPEM not requiredReview-Narrative

Impairments of the 2-5A synthetase/RNase L pathway in chronic fatigue syndrome.

Nijs, Jo, De Meirleir, Kenny·In vivo (Athens, Greece)·2005

This study looks at a specific immune system pathway called the 2-5A synthetase/RNase L pathway that may be broken in ME/CFS patients. Researchers found that in ME/CFS, this pathway is overactive but also working improperly—it's being broken down into unusual pieces instead of functioning normally. This abnormal pathway appears connected to reduced natural killer cell function and problems with how cells die when they should.

Immune System

E3 PreliminaryReviewPEM not requiredReview-Narrative

Chronic fatigue syndrome. A brief review of functional disturbances and potential therapy.

Shephard, R J·The Journal of sports medicine and physical fitness·2005

This review examined what might cause ME/CFS and how to treat it. The authors found that many different factors have been suggested as causes—including overtraining, stress, hormonal problems, infections, and immune issues—but none consistently appears in all patients. They concluded that the best approach is to help patients gradually rebuild physical fitness through exercise, counseling, and encouragement, while avoiding the harmful cycle of doing less and becoming more deconditioned.

Immune SystemPost-Exertional Malaise

E3 PreliminaryReviewPEM unclearReview-Narrative

Exercise prescription for individuals with chronic fatigue syndrome.

Wallman, Karen E, Morton, Alan R, Goodman, Carmel et al.·The Medical journal of Australia·2005

This review article examines how exercise should be prescribed for people with ME/CFS, looking at what is known from medical literature. The authors discuss different approaches to exercise and what safety considerations are important for this patient group. The review helps clarify when and how exercise might be appropriate for ME/CFS patients.

E3 PreliminaryReviewPEM unclearReview-Narrative

[Diagnosing asthenia and chronic fatigue syndrome].

Aslangul, Elisabeth, Le Jeunne, Claire·La Revue du praticien·2005

This article discusses how doctors can distinguish between general tiredness (asthenia) and ME/CFS, which is a serious long-term illness characterized by severe fatigue that doesn't improve with rest. The authors review the clinical features and diagnostic approaches that help healthcare providers identify ME/CFS in their patients. Understanding these differences is important so patients receive appropriate diagnosis and care.

Diagnostics

E3 PreliminaryMechanismPEM not requiredCross-Sectional

Objective evidence of cognitive complaints in Chronic Fatigue Syndrome: a BOLD fMRI study of verbal working memory.

Lange, G, Steffener, J, Cook, D B et al.·NeuroImage·2005

This study used brain imaging to see what happens when people with ME/CFS listen to complex spoken information. Researchers found that people with ME/CFS could understand the information just as well as healthy people, but their brains had to work much harder to do it—using more brain regions and requiring greater effort. This provides scientific proof that the thinking and concentration difficulties ME/CFS patients report are real and visible on brain scans.

Cognitive Impairment

E3 PreliminaryGuidelinePEM not requiredGuideline

[Report from the Health Council of the Netherlands on the chronic fatigue syndrome: moving away from the body-mind dichotomy with a view to effective prevention and treatment].

Bolk, J H·Nederlands tijdschrift voor geneeskunde·2005

This Dutch Health Council report recognizes ME/CFS as a real, serious illness that genuinely affects people's lives, even though doctors cannot find obvious physical signs or blood tests to confirm it. The report suggests that stress and the gap between what the body can handle and what people try to do play important roles in the condition. It recommends moving away from the idea that ME/CFS is purely 'in your head' or purely physical, and instead seeing it as involving both body and mind together.

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Evidence browser

Gene expression profile of empirically delineated classes of unexplained chronic fatigue.

Protective efficacy, immunotherapeutic potential, and safety of hepatitis B vaccines.

Gene expression correlates of unexplained fatigue.

Cardiovascular systemic regulation by plantar surface stimulation.

[The problem of fatigue in neurological disorders].

Four problems with the clinical control of interstitial pneumonia, or chronic fatigue syndrome, using the megadose vitamin C infusion system with dehydroepiandrosterone-cortisol annex.

Chronic Fatigue Syndrome: An Evaluation of a Community Based Management Programme for Adolescents and their Families.

Is human herpesvirus-6 a trigger for chronic fatigue syndrome?

Polymorphisms in genes regulating the HPA axis associated with empirically delineated classes of unexplained chronic fatigue.

[Significance of the chronic fatigue syndrome in rehabilitation medicine--status and perspectives].

Pain in patients with chronic fatigue syndrome: does nitric oxide trigger central sensitisation?

An under-active or over-active internal world? An exploration of parallel dynamics within psyche and soma, and the difficulty of internal regulation, in patients with Chronic Fatigue Syndrome and Myalgic Encephalomyelitis.

Pathogenesis of parvovirus B19 infection: host gene variability, and possible means and effects of virus persistence.

A patient's journey with myalgic encephalomyelitis.

Impairments of the 2-5A synthetase/RNase L pathway in chronic fatigue syndrome.

Chronic fatigue syndrome. A brief review of functional disturbances and potential therapy.

Exercise prescription for individuals with chronic fatigue syndrome.

[Diagnosing asthenia and chronic fatigue syndrome].

Objective evidence of cognitive complaints in Chronic Fatigue Syndrome: a BOLD fMRI study of verbal working memory.

[Report from the Health Council of the Netherlands on the chronic fatigue syndrome: moving away from the body-mind dichotomy with a view to effective prevention and treatment].

Curated Collections

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Biomarkers

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