ME/CFS Evidence Browser — Classified Studies on Myalgic Encephalomyelitis

2422 studies

1421–1440 of 2,422 studies

E3 PreliminaryMechanismPEM not requiredMechanistic

[Activity of hypotnalamic-pituitary-adrenal axis by induction of experimental chronic fatigue syndrom].

Fomicheva, E E, Filatenkova, T A, Rybakina, E G·Rossiiskii fiziologicheskii zhurnal imeni I.M. Sechenova·2009

Researchers used an animal model to study how ME/CFS might affect the stress hormone system in the body. They gave rats a substance that mimics a viral infection, then tested whether the animals' adrenal glands (which produce cortisol, the main stress hormone) still responded normally. They found that the stress hormone system became less responsive, suggesting that an infection-like trigger could disrupt how the body regulates stress hormones.

Immune System

E3 PreliminaryReviewPEM unclearReview-Narrative

Fibromyalgia: pathogenetic, diagnostic and therapeutic concerns.

Podolecki, Tomasz, Podolecki, Andrzej, Hrycek, Antoni·Polskie Archiwum Medycyny Wewnetrznej·2009

Fibromyalgia is a condition causing widespread muscle and joint pain that affects many people worldwide. This review examines what we know about fibromyalgia's causes, how doctors diagnose it, and how it can be treated. The authors note that fibromyalgia likely results from multiple factors involving the nervous system, brain chemistry, and immune function, and that treatment typically involves antidepressants, therapy, and other approaches.

Pain and SensitizationDiagnostics

E3 PreliminaryReviewPEM unclearReview-Narrative

[Immunologic disturbances can explain chronic fatigue syndrome. Biological findings point towards somatogenesis].

Gottfries, Carl-Gerhard, Matousek, Michael, Zachrisson, Olof·Lakartidningen·2009

This review article examines how problems with the immune system may explain why people with ME/CFS experience persistent fatigue and other symptoms. The authors argue that biological evidence supports the idea that ME/CFS is a real physical illness rather than a psychological one, with immune system disturbances playing a central role in the condition.

Immune System

E3 PreliminaryBehavioralPEM not requiredCase-Control

Fixed belief in cognitive dysfunction despite normal neuropsychological scores: neurocognitive hypochondriasis?

Boone, Kyle Brauer·The Clinical neuropsychologist·2009

Some people with ME/CFS report serious cognitive problems in their daily life, but when given standard memory and thinking tests, their scores are completely normal. This study presents one case and suggests that some patients may worry excessively about cognitive problems that aren't actually measurable on formal tests—a condition the author calls 'neurocognitive hypochondriasis.' The study notes this pattern may occur in ME/CFS and several other conditions.

Cognitive Impairment

E3 PreliminaryMechanismPEM unclearCross-Sectional

An in vivo proton neurospectroscopy study of cerebral oxidative stress in myalgic encephalomyelitis (chronic fatigue syndrome).

Puri, B K, Agour, M, Gunatilake, K D R et al.·Prostaglandins, leukotrienes, and essential fatty acids·2009

This study used brain imaging to measure levels of a protective molecule called glutathione in the brains of people with ME/CFS. Researchers had expected glutathione levels to be lower in ME/CFS patients because it was reduced in their blood, but surprisingly, the brain levels were similar between patients and healthy controls. The study found no evidence that taking glutathione supplements would help with ME/CFS brain-related symptoms.

E3 PreliminaryGuidelinePEM not requiredGuideline

Chronic fatigue syndrome: aetiology, diagnosis and treatment.

Avellaneda Fernández, Alfredo, Pérez Martín, Alvaro, Izquierdo Martínez, Maravillas et al.·BMC psychiatry·2009

ME/CFS is a serious condition marked by extreme exhaustion that lasts at least six months and doesn't improve with rest. The fatigue is so severe that it can force people to reduce their daily activities by half or more. Doctors don't yet have a single test to diagnose it, so they diagnose it by ruling out other illnesses. There is currently no cure, but treatment works best when doctors, mental health professionals, and social support services work together to help patients.

Post-Exertional Malaise

E3 PreliminaryReviewPEM unclearReview-Narrative

Postulated vasoactive neuropeptide immunopathology affecting the blood-brain/blood-spinal barrier in certain neuropsychiatric fatigue-related conditions: A role for phosphodiesterase inhibitors in treatment?

Staines, Donald R, Brenu, Ekua W, Marshall-Gradisnik, Sonya·Neuropsychiatric disease and treatment·2009

This paper proposes that ME/CFS, along with MS, Parkinson's disease, and ALS, may involve immune system problems affecting the protective barriers around the brain and spinal cord. Specifically, the authors suggest that certain signaling molecules called PACAP and VIP, which normally help maintain these barriers, may become targets of autoimmune attack. They propose that a class of drugs called phosphodiesterase inhibitors might help restore normal function by boosting protective immune responses.

NeuroinflammationImmune System

E3 PreliminaryBehavioralPEM not requiredCase-Control

Cognitive-behavior therapy in chronic fatigue syndrome: is improvement related to increased physical activity?

Friedberg, Fred, Sohl, Stephanie·Journal of clinical psychology·2009

This study looked at whether cognitive-behavioral therapy (CBT)—a type of talk therapy combined with gradually increasing physical activity—helped 11 people with ME/CFS feel better. While most patients reported feeling improved, the researchers found something surprising: some patients who felt better had actually increased their activity levels (shown by motion sensors), while others had decreased their activity levels. This suggests that improvement in ME/CFS may not work the same way the standard CBT model predicts.

E3 PreliminaryCohortPEM not requiredCase-Control

Clinical impact of B-cell depletion with the anti-CD20 antibody rituximab in chronic fatigue syndrome: a preliminary case series.

Fluge, Øystein, Mella, Olav·BMC neurology·2009

This study examined whether a drug called rituximab, which reduces B cells (a type of immune cell), could help ME/CFS patients. Three ME/CFS patients received rituximab infusions and all experienced significant symptom improvement lasting several months. When symptoms returned, patients were retreated and improved again, suggesting that B cells may play a role in ME/CFS for at least some patients.

Immune System

E3 PreliminaryBehavioralPEM not required

Using a DVD to help people with chronic fatigue syndrome learn the technique of pacing.

Weston, Sarah, Townsend, Stella·Nursing times·2009

A specialist rehabilitation team in Shropshire created a DVD and booklet to teach people with ME/CFS about pacing—a technique that involves carefully balancing rest and activity to manage fatigue. This resource was designed to help patients better understand and practice pacing in their daily lives. The team found that these educational materials helped them support their patients more effectively.

E3 PreliminaryBehavioralPEM not requiredCase-Control

Promising outcomes of an adolescent chronic fatigue syndrome inpatient programme.

Gordon, Brett, Lubitz, Lionel·Journal of paediatrics and child health·2009

This study looked at 16 teenagers with ME/CFS who participated in a 4-week inpatient program that included carefully supervised exercise training tailored to each person's abilities. Teenagers who completed the program showed improvements in physical fitness (18% longer time before fatigue, 17% better oxygen uptake), strength (70% more push-ups), fatigue severity (13% improvement), and depression symptoms (42% improvement). These improvements helped many teenagers return to school, social activities, and family life.

E3 PreliminaryMechanismPEM unclearObservational

The effects of galantamine hydrobromide treatment on dehydroepiandrosterone sulfate and cortisol levels in patients with chronic fatigue syndrome.

Turan, Tayfun, Izgi, Hasan Basri, Ozsoy, Saliha et al.·Psychiatry investigation·2009

This study tested whether a medication called galantamine, which increases a brain chemical called acetylcholine, could help ME/CFS patients by improving hormone imbalances. Researchers measured two stress hormones (cortisol and DHEAS) in 29 ME/CFS patients before and after 4 weeks of treatment, comparing them to healthy controls. They found that in patients who improved with the medication, the abnormal hormone levels shifted back toward normal, suggesting the cholinergic system may play a role in ME/CFS.

Endocrine Disruption

E3 PreliminaryCohortPEM not requiredCase-Control

Chronic fatigue syndrome: a hormonal origin? A rare case of dysmenorrhea membranacea.

Veldman, Joan, Van Houdenhove, Boudewijn, Verguts, Jasper·Archives of gynecology and obstetrics·2009

This case describes a woman with chronic fatigue syndrome who developed a rare condition called membranous dysmenorrhea (where the uterine lining sheds in one piece) after starting a hormonal birth control pill. Interestingly, when she stopped the medication and the tissue was expelled, her fatigue symptoms completely disappeared and she was able to return to work. While this is just one patient's experience, it raises the possibility that hormone imbalances might contribute to chronic fatigue in some cases.

E3 PreliminaryReviewPEM unclearReview-Narrative

Immunological aspects of chronic fatigue syndrome.

Lorusso, Lorenzo, Mikhaylova, Svetlana V, Capelli, Enrica et al.·Autoimmunity reviews·2009

This review examines how the immune system may be involved in ME/CFS. Researchers have found that people with ME/CFS often have unusual patterns in immune cells and signaling molecules called cytokines, particularly higher levels of inflammatory markers. These immune system changes might explain some of the main symptoms, like fatigue and flu-like feelings, though the exact role these changes play in causing the disease remains unclear.

Immune System

E3 PreliminaryDiagnosticPEM not requiredMethods-Paper

Sensitive, qualitative detection of human herpesvirus-6 and simultaneous differentiation of variants A and B.

Li, Haijing, Meng, Shufang, Levine, Susan M et al.·Journal of clinical virology : the official publication of the Pan American Society for Clinical Virology·2009

Researchers developed a new test to detect human herpesvirus-6 (HHV-6) in patient samples, even when the virus is present in very small amounts. The test can also tell the difference between two types of HHV-6 (called variant A and B). When tested on urine samples from people with and without chronic fatigue syndrome, the test successfully detected the virus in a small number of patients.

E3 PreliminaryDiagnosticPEM not requiredMethods-Paper

A comparison of classification methods for predicting Chronic Fatigue Syndrome based on genetic data.

Huang, Lung-Cheng, Hsu, Sen-Yen, Lin, Eugene·Journal of translational medicine·2009

Researchers used computer algorithms to analyze genetic variations (called SNPs) in people with ME/CFS to see if they could predict who has the disease. They tested different mathematical approaches to find the most important genes linked to ME/CFS. Their best-performing method combined a technique called naive Bayes with a process that identified the most relevant genetic markers, suggesting this approach could help identify genetic patterns in ME/CFS.

E3 PreliminaryMechanismPEM unclearMechanistic

Moderate exercise increases expression for sensory, adrenergic, and immune genes in chronic fatigue syndrome patients but not in normal subjects.

Light, Alan R, White, Andrea T, Hughen, Ronald W et al.·The journal of pain·2009

This study examined blood cells from ME/CFS patients and healthy people before and after moderate exercise. Researchers found that ME/CFS patients showed much larger changes in genes related to pain sensation, stress response, and immune function after exercise compared to healthy controls. These gene changes lasted from 30 minutes to 2 days and correlated with patients' fatigue and pain symptoms.

Immune SystemPost-Exertional Malaise

E3 PreliminaryReviewPEM unclearReview-Narrative

[Changes on definition and diagnostic criteria of the chronic fatigue syndrome].

Qin, You, Pang, Feng-Shun, Cai, Bei-Yuan·Zhongguo Zhong xi yi jie he za zhi Zhongguo Zhongxiyi jiehe zazhi = Chinese journal of integrated traditional and Western medicine·2009

This article reviews how the definition and diagnostic criteria for ME/CFS have changed over time. The authors examine the evolution of how doctors identify and classify this condition using different diagnostic frameworks. Understanding these changes helps patients and doctors communicate more clearly about the disease.

Diagnostics

E3 PreliminaryMechanismPEM not requiredMechanistic

Model-based therapeutic correction of hypothalamic-pituitary-adrenal axis dysfunction.

Ben-Zvi, Amos, Vernon, Suzanne D, Broderick, Gordon·PLoS computational biology·2009

People with ME/CFS often have abnormally low cortisol levels, a hormone that helps the body manage stress and energy. This study used mathematical computer modeling to design a new treatment approach: rather than giving more cortisol (the intuitive approach), the model suggests temporarily suppressing cortisol further until the body's signaling hormone (ACTH) rises enough to trigger the system to reset itself back to normal levels. This counterintuitive strategy could work by exploiting how the body's hormone system naturally behaves.

Endocrine Disruption

E3 PreliminaryReviewPEM not requiredReview-Narrative

Pathogenic mechanisms of idiopathic nonallergic rhinitis.

Baraniuk, James N·The World Allergy Organization journal·2009

This study examines why some people develop chronic nasal symptoms like congestion and runny nose that don't have an obvious allergic cause. Researchers found that this condition may actually involve several different problems: structural issues in the nose, nerve sensitivity problems, and autonomic nervous system dysfunction—the same type of nervous system problem found in ME/CFS.

Autonomic Nervous System

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[Activity of hypotnalamic-pituitary-adrenal axis by induction of experimental chronic fatigue syndrom].

Fibromyalgia: pathogenetic, diagnostic and therapeutic concerns.

[Immunologic disturbances can explain chronic fatigue syndrome. Biological findings point towards somatogenesis].

Fixed belief in cognitive dysfunction despite normal neuropsychological scores: neurocognitive hypochondriasis?

An in vivo proton neurospectroscopy study of cerebral oxidative stress in myalgic encephalomyelitis (chronic fatigue syndrome).

Chronic fatigue syndrome: aetiology, diagnosis and treatment.

Postulated vasoactive neuropeptide immunopathology affecting the blood-brain/blood-spinal barrier in certain neuropsychiatric fatigue-related conditions: A role for phosphodiesterase inhibitors in treatment?

Cognitive-behavior therapy in chronic fatigue syndrome: is improvement related to increased physical activity?

Clinical impact of B-cell depletion with the anti-CD20 antibody rituximab in chronic fatigue syndrome: a preliminary case series.

Using a DVD to help people with chronic fatigue syndrome learn the technique of pacing.

Promising outcomes of an adolescent chronic fatigue syndrome inpatient programme.

The effects of galantamine hydrobromide treatment on dehydroepiandrosterone sulfate and cortisol levels in patients with chronic fatigue syndrome.

Chronic fatigue syndrome: a hormonal origin? A rare case of dysmenorrhea membranacea.

Immunological aspects of chronic fatigue syndrome.

Sensitive, qualitative detection of human herpesvirus-6 and simultaneous differentiation of variants A and B.

A comparison of classification methods for predicting Chronic Fatigue Syndrome based on genetic data.

Moderate exercise increases expression for sensory, adrenergic, and immune genes in chronic fatigue syndrome patients but not in normal subjects.

[Changes on definition and diagnostic criteria of the chronic fatigue syndrome].

Model-based therapeutic correction of hypothalamic-pituitary-adrenal axis dysfunction.

Pathogenic mechanisms of idiopathic nonallergic rhinitis.

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