Correlation of symptoms with vitamin D deficiency and symptom response to cholecalciferol treatment: a randomized controlled trial.
Endocr Pract
; 15(3): 203-12, 2009 Apr.
Article
em En
| MEDLINE
| ID: mdl-19364687
ABSTRACT
OBJECTIVE:
To examine the association of symptoms with vitamin D deficiency and symptom response to cholecalciferol treatment in a randomized, double-blind, placebo-controlled trial.METHODS:
Adult primary care patients in Duluth, Minnesota, were screened for vitamin D deficiency in February 2007. Participants completed questionnaires pertaining to a variety of symptoms, vitamin D intake, and selected medical conditions. Patients with mild to moderate vitamin D deficiency (25-hydroxyvitamin D [25(OH)D], 10-25 ng/mL) participated in a randomized controlled trial (RCT) of vitamin D replacement and its effect on symptoms. Participants were randomly assigned to receive 50 000 units of cholecalciferol (vitamin D3) weekly or placebo for 8 weeks. Patients with severe vitamin D deficiency (25[OH]D <10 ng/mL) were treated in an unblinded fashion, and symptoms were reevaluated post treatment.RESULTS:
A total of 610 patients underwent initial screening, and 100 patients with mild to moderate vitamin D deficiency participated in the RCT. Thirty-eight severely deficient patients were treated in an unblinded fashion. On initial screening, 46.2% of participants were deficient in vitamin D. Self-reported vitamin D supplementation, milk intake, celiac disease, gastric bypass, and chronic pancreatitis were predictive of vitamin D status. Severely deficient participants reported increased musculoskeletal symptoms, depression (including seasonal), and higher (worse) scores on a fibromyalgia assessment questionnaire. In the RCT, the treated group showed significant improvement in fibromyalgia assessment scores (P = 0.03), whereas the placebo-treated participants did not. Severely deficient patients did not show symptom improvement over the 8-week trial period or when followed up 1 year later.CONCLUSIONS:
Compared with participants in the placebo group, patients in the treatment group showed mild short-term improvement in the overall fibromyalgia impact score, but did not show significant improvement in most musculoskeletal symptoms or in activities of daily living.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Deficiência de Vitamina D
/
Colecalciferol
/
Biomarcadores Farmacológicos
Tipo de estudo:
Clinical_trials
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Diagnostic_studies
/
Etiology_studies
/
Prognostic_studies
Limite:
Adult
/
Aged
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Female
/
Humans
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Male
/
Middle aged
Idioma:
En
Revista:
Endocr Pract
Assunto da revista:
ENDOCRINOLOGIA
Ano de publicação:
2009
Tipo de documento:
Article
País de afiliação:
Estados Unidos