Correlation of vitamin D binding protein gene polymorphism and protein levels in chronic obstructive pulmonary disease compared with non-chronic obstructive pulmonary disease subjects

Per Med. 2018 Sep;15(5):371-379. doi: 10.2217/pme-2018-0005. Epub 2018 Sep 27.

Abstract

Aim: The risk of vitamin D binding protein (DBP) variations in chronic obstructive pulmonary disease (COPD) compared with non-COPD Thai males were investigated.

Materials & methods: The rs7041 and rs4588 polymorphisms of the DBP gene and protein level were measured in 136 COPD and 68 non-COPD Thai males.

Results: In the COPD group, GC1-1 gave increased forced expiratory volume at 1 s % predicted compared with GC1-2 but with no significant difference. Significantly lower average DBP serum levels were observed in COPD than non-COPD subjects. Positive correlation between serum DBP and forced expiratory volume at 1 s % predicted was observed in non-COPD subjects.

Discussion & conclusion: DBP variations might be associated with risk factors in COPD caused by both inflammatory and vitamin D circulation processes.

Keywords: COPD; lung function; macrophage activating factor; single nucleotide polymorphism; vitamin D binding protein.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aged
  • Aged, 80 and over
  • Case-Control Studies
  • Forced Expiratory Volume / genetics
  • Forced Expiratory Volume / physiology
  • Genetic Predisposition to Disease / genetics
  • Humans
  • Male
  • Middle Aged
  • Polymorphism, Single Nucleotide / genetics
  • Pulmonary Disease, Chronic Obstructive / genetics*
  • Pulmonary Disease, Chronic Obstructive / metabolism
  • Respiratory Function Tests
  • Risk Factors
  • Severity of Illness Index
  • Thailand
  • Transcriptome / genetics
  • Vitamin D / metabolism
  • Vitamin D-Binding Protein / blood
  • Vitamin D-Binding Protein / genetics*
  • Vitamin D-Binding Protein / metabolism

Substances

  • GC protein, human
  • Vitamin D-Binding Protein
  • Vitamin D