Edinburgh Research Explorer

Vitamin D, vitamin D binding protein, lung function and structure in COPD

Research output: Contribution to journalArticle

  • Isaac Berg
  • Corrine Hanson
  • Harlan Sayles
  • Debra Romberger
  • Amy Nelson
  • Jane Meza
  • Bruce Miller
  • Emiel F. M. Wouters
  • William MacNee
  • E. P. A. Rutten
  • Elisabeth A. P. M. Romme
  • Jorgen Vestbo
  • Lisa Edwards
  • Stephen Rennard

Related Edinburgh Organisations

Original languageEnglish
Pages (from-to)1578-1588
Number of pages11
JournalRespiratory Medicine
Volume107
Issue number10
DOIs
Publication statusPublished - Oct 2013

Abstract

Rationale: Vitamin D and vitamin D binding protein (DBP) have been associated with COPD and FEV1. There are limited data regarding emphysema and vitamin D and DBP.

Objective: This is a pilot study of a portion of the subjects in the Evaluation of COPD Longitudinally to Identify Predictive Surrogate Endpoints (ECLIPSE) study designed to examine the relationship between vitamin D status, DBP, FEV1 and emphysema in COPD patients.

Methods: We measured serum 25(OH)D and DBP in 498 ECLIPSE subjects. Subjects were distributed amongst smoker controls, non-smoker controls, and GOLD stages 2, 3 and 4. Within each GOLD stage, the subjects were equally divided amongst high and low emphysema burden. The associations between 25(OH)D, DBP, and free vitamin D with FEV1, CT-defined emphysema, biomarkers and clinical data including CT-measured bone attenuation were assessed.

Measurements: 25(OH)D and DBP were measured using tandem mass spectroscopy and competitive enzyme-linked immunosorbent assay, respectively,

Main result: 25(OH)D was correlated with FEV1 (p = 0.01) and with severity of emphysema (p <0.01). 25(OH)D was also associated with six-minute walk (p = 0.02), bronchodilator response (p = 0.04), and Clara cell secretory protein (CC-16) (p = 0.01). 25(OH)D levels were not associated with CT-measured bone attenuation, however DBP was associated with bone attenuation in subjects with emphysema. DBP was not associated with FEV1 or emphysema. 25(OH)D and DBP were inversely associated (p = 0.01).

Conclusion: This is the first study to demonstrate a relationship between emphysema and vitamin D. We also provide further evidence for a relationship between vitamin D and FEV1. (C) 2013 Elsevier Ltd. All rights reserved.

    Research areas

  • Emphysema, 25(OH)D, FEV1, Free vitamin D, OBSTRUCTIVE PULMONARY-DISEASE, BONE-MINERAL DENSITY, PLASMA-CONCENTRATIONS, ECLIPSE COHORT, D DEFICIENCY, SEVERITY, HEALTH, ASTHMA, CELLS, WOMEN

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