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Vitamin D deficiency: What does it mean for chronic obstructive pulmonary disease (COPD)? a compherensive review for pulmonologists
Author(s) -
Kokturk Nurdan,
Baha Ayse,
Oh YeonMok,
Young Ju Jung,
Jones Paul W.
Publication year - 2018
Publication title -
the clinical respiratory journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.789
H-Index - 33
eISSN - 1752-699X
pISSN - 1752-6981
DOI - 10.1111/crj.12588
Subject(s) - medicine , copd , vitamin d deficiency , vitamin d and neurology , immunology
Objectives Vitamin D deficiency and Chronic Obstructive Pulmonary Disease (COPD) are both under‐recognized health problems, world‐wide. Although Vitamin D has long been known for calcemic effects it also has less known noncalcemic effects. Recent data have shown that Vitamin D deficiency is highly prevalent in patients with COPD and correlates with forced expiratory volume in one second (FEV 1 ) and FEV 1 decline. The objective of this work was to review the current literature on vitamin D deficiency in relation with COPD. Data source A literature search, using the words “vitamin D” and “COPD”, was undertaken in Pubmed database. Results The noncalcemic effects of vitamin D relating with COPD may be summarised as increasing antimicrobial peptide production, regulation of inflammatory response and airway remodelling. Vitamin D inhibits the production of several proinflammatory cytokines and leads to suppression Th1 and Th17 responses which may be involved in the pathogenesis of COPD. Vitamin D insufficiency may also contribute to chronic respiratory infections and airway colonization so returning vitamin D concentrations to an optimal range in patients with COPD might reduce bacterial load and concomitant exacerbations.Vitamin D is also important for COPD‐related comorbodities such as osteoporosis, muscle weakness and cardiovascular diseases. Data about the effect of Vitamin D supplementation on those comorbidities in relation with COPD are been scarce. Conclusion Improving the blood level of Vitamin D into the desired range may have a beneficial effect bones and muscles, but more studies are needed to test to test that hypothesis.

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