Citation

BibTex format

@article{Thursfield:2018:10.1016/j.jcf.2018.02.011,
author = {Thursfield, RM and Naderi, K and Leaver, N and Rosenthal, M and Alton, EWFW and Bush, A and Davies, JC},
doi = {10.1016/j.jcf.2018.02.011},
journal = {Journal of Cystic Fibrosis},
pages = {657--665},
title = {Children with cystic fibrosis demonstrate no respiratory immunological, infective or physiological, consequences of vitamin D deficiency},
url = {http://dx.doi.org/10.1016/j.jcf.2018.02.011},
volume = {17},
year = {2018}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - BACKGROUND: Vitamin D has health benefits in many respiratory diseases but the evidence in CF is unclear. Induction of the antimicrobial peptides cathelicidin (LL37) and human-beta-defensin-2 (HBD-2) may be the mechanism of any benefit. We hypothesised that antimicrobial peptide levels would be decreased, and airway infection and inflammation greater, in CF children with vitamin D deficiency. The objective of the study was to explore relationships between vitamin D, LL37 and HBD-2, and airway infection, inflammation and physiology in children with CF. METHODS: Bronchoalveolar lavage (BALF) and blood were obtained from children undergoing fibreoptic bronchoscopy. Serum vitamin D, BALF HBD-2 and LL37, cultured bacteria and inflammatory markers were measured. Clinical parameters were recorded. RESULTS: 113 patients with CF, 23 with non-CF chronic suppurative lung disease (CSLD) and 6 healthy controls were included. We found no relationship between serum vitamin D and BALF HBD-2 or LL-37. There were no differences in infective or inflammatory markers between vitamin D sufficient and deficient groups. Vitamin D deficient patients (<50nmol/L) did not have a worse FEV1 (CF: 66 (58-71)% vs. 71.5 (61-76)%, ns; non-CF CSLD: 69 (36-88)% vs. 70 (62-95)%, ns). CONCLUSIONS: In the first bronchoscopic study exploring this question, we demonstrate that vitamin D deficiency is not associated with immunological, infective or clinical markers of disease severity in patients with CF or CSLD.
AU  - Thursfield,RM
AU  - Naderi,K
AU  - Leaver,N
AU  - Rosenthal,M
AU  - Alton,EWFW
AU  - Bush,A
AU  - Davies,JC
DO  - 10.1016/j.jcf.2018.02.011
EP  - 665
PY  - 2018///
SN  - 1569-1993
SP  - 657
TI  - Children with cystic fibrosis demonstrate no respiratory immunological, infective or physiological, consequences of vitamin D deficiency
T2  - Journal of Cystic Fibrosis
UR  - http://dx.doi.org/10.1016/j.jcf.2018.02.011
UR  - https://www.ncbi.nlm.nih.gov/pubmed/29631774
UR  - http://hdl.handle.net/10044/1/58649
VL  - 17
ER  -
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