The role of life stress in fibromyalgia. Related
The role of life stress in fibromyalgia.
Related Articles The role of life stress in fibromyalgia. Curr Rheumatol Rep. 2005 Oct;7(5):365-70 Authors: Van Houdenhove B, Egle U, Luyten P This paper focuses on recent evidence of etiopathogenetic links between fibromyalgia and life stress. From an etiologic point of view, studies concerning the role of adverse life events, personality and lifestyle factors, post-traumatic stress, and negative childhood experiences are reviewed. From a pathogenetic point of view, neurobiologic links between stress and fibromyalgia symptoms, notably chronic pain and fatigue are highlighted. Finally, several methodologic issues with regard to stress research on fibromyalgia, as well as the clinical relevance of the stress concept for fibromyalgia are discussed. PMID: 16174484 [PubMed - indexed for MEDLINE]
Fibromyalgia frequency in hepatitis B carriers.
Related Articles Fibromyalgia frequency in hepatitis B carriers. J Clin Rheumatol. 2005 Jun;11(3):157-9 Authors: Adak B, Tekeoğlu I, Ediz L, Budancamanak M, Yazgan T, Karahocagil K, Demirel A BACKGROUND: Fibromyalgia (FM) is characterized by diffuse musculoskeletal pain, fatigue, morning stiffness, and sleep disturbance. Chronic viral infections may trigger FM symptoms. OBJECTIVES: In this study, we aimed to evaluate whether there was an association between HBsAg seropositivity and fibromyalgia syndrome. METHODS: Fifty hepatitis B carriers (HBsAg positivity and anti-HBs negativity in sera for at least 6 months) and 50 age- and sex-matched HbsAg-negative control subjects were enrolled in this study. The hepatitis B carriers with normal or slightly elevated aspartate aminotransferase (AST) and alanine aminotransferase (ALT) levels were recruited from the infectious diseases outpatient clinic and the control group was recruited from the physical medicine and rehabilitation outpatient clinic. The relationship between groups was calculated by independent Student t test, chi-squared test, and Fisher exact test for comparing proportions. Alpha criterion for significance was set at P < 0.05. RESULTS: There was no statistically significant difference between the groups according to sex, mean age, body mass index, serum ALT, and AST levels (P > 0.05). FM syndrome and FM-associated symptoms were much more prevalent in the hepatitis B group (P < 0.001). CONCLUSION: The present study suggests that chronic hepatitis B carriage appears to increase the risk of FM and many of the typically associated symptoms. Whether this association is related to altered liver function, viral infection, concerns associated with chronic disease, or other factors, physicians should be aware of this apparent association. PMID: 16357736 [PubMed - indexed for MEDLINE]
Exercise and cognitive performance in chronic fatigue syndrome.
Related Articles Exercise and cognitive performance in chronic fatigue syndrome. Med Sci Sports Exerc. 2005 Sep;37(9):1460-7 Authors: Cook DB, Nagelkirk PR, Peckerman A, Poluri A, Mores J, Natelson BH PURPOSE: To determine the effect of submaximal steady-state exercise on cognitive performance in patients with chronic fatigue syndrome (CFS) alone, CFS with comorbid fibromyalgia FM (CFS + FM), and sedentary healthy controls (CON). METHODS: Twenty CFS-only patients, 19 CFS + FM, and 26 CON completed a battery of cognitive tests designed to assess speed of information processing, variability, and efficiency. Tests were performed at baseline, immediately before, and twice following 25 min of either cycle ergometry set at 40% of peak oxygen capacity or quiet rest. RESULTS: There were no group differences in average percentage of peak oxygen consumption during exercise (CFS = 45%; CFS + FM = 47%; Control = 43%: P = 0.2). There were no significant effects of acute exercise on cognitive performance for any group. At baseline, one-way ANOVA indicated that CFS patients displayed deficits in speed of processing, performance variability, and task efficiency during several cognitive tests compared with healthy controls. However, the CFS + FM patients were not different than controls. Repeated measures ANOVA indicated that across all tests (pre- and postexercise) CFS, but not CFS + FM, were significantly less consistent (F2,59 = 3.7, P = 0.03) and less efficient (F2,59 = 4.6, P = 0.01) than controls. CONCLUSION: CFS patients without comorbid FM exhibit subtle cognitive deficits in terms of speed, consistency, and efficiency that are not improved or exacerbated by light exercise. Importantly, our data suggest that CFS + FM patients do not exhibit cognitive deficits either pre- or postexercise. These results highlight the importance of disease heterogeneity in studies determining acute exercise and cognitive function in CFS. PMID: 16177595 [PubMed - indexed for MEDLINE]
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