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Vitamin D status in chronic fatigue syndrome/myalgic encephalomyelitis: a cohort study from the North-West of England

Earl, K and Sakellariou, G and Sinclair, M and Fenech, M and Croden, F and Owens, DJ and Tang, J and Miller, A and Lawton, C and Dye, L and Close, GL and Fraser, WD and McArdle, A and Beadsworth, M (2017) Vitamin D status in chronic fatigue syndrome/myalgic encephalomyelitis: a cohort study from the North-West of England. BMJ Open. ISSN 2044-6055

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Abstract

Objective Severe vitamin D deficiency is a recognised cause of skeletal muscle fatigue and myopathy. The aim of this study was to examine whether chronic fatigue syndrome/myalgic encephalomyelitis (CFS/ME) is associated with altered circulating vitamin D metabolites. Design Cohort study. Setting UK university hospital, recruiting from April 2014 to April 2015. Participants Ninety-two patients with CFS/ME and 94 age-matched healthy controls (HCs). Main outcome measures The presence of a significant association between CFS/ME, fatigue and vitamin D measures. Results No evidence of a deficiency in serum total 25(OH) vitamin D (25(OH)D2 and 25(OH)D3 metabolites) was evident in individuals with CFS/ME. Liquid chromatography tandem mass spectrometry (LC–MS/MS) analysis revealed that total 25(OH)D was significantly higher (p=0.001) in serum of patients with CFS/ME compared with HCs (60.2 and 47.3 nmol/L, respectively). Analysis of food/ supplement diaries with WinDiets revealed that the higher total 25(OH) vitamin D concentrations observed in the CFS/ ME group were associated with increased vitamin D intake through use of supplements compared with the control group. Analysis of Chalder Fatigue Questionnaire data revealed no association between perceived fatigue and vitamin D levels. Conclusions Low serum concentrations of total 25(OH) D do not appear to be

Item Type: Article
Subjects: T Technology > TX Home economics > TX341 Nutrition. Foods and food supply
R Medicine > RM Therapeutics. Pharmacology
Divisions: Sport & Exercise Sciences
Publisher: BMJ Journals
Date Deposited: 10 Nov 2017 11:06
Last Modified: 10 Nov 2017 11:10
DOI or Identification number: 10.1136/bmjopen-2016-015296
URI: http://researchonline.ljmu.ac.uk/id/eprint/7513

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