PMID- 28757197 OWN - NLM STAT- MEDLINE DCOM- 20180717 LR - 20180717 IS - 1578-1267 (Electronic) IS - 0301-0546 (Linking) VI - 46 IP - 1 DP - 2018 Jan-Feb TI - Correlation between serum vitamin D status and immunological changes in children affected by gastrointestinal food allergy. PG - 39-44 LID - S0301-0546(17)30072-1 [pii] LID - 10.1016/j.aller.2017.03.005 [doi] AB - BACKGROUND: Low vitamin D status is linked to increased incidence of food allergy and intestinal inflammation. Whether vitamin D status is associated with immunological changes in children with gastrointestinal food allergy (GFA) remains unclear. METHODS: Forty-nine GFA children (aged 2-11 years old) were enrolled in this study. Serum 25-hydroxyvitamin D (25OHD) level, total immunoglobulin E (IgE), specific IgE against allergens, circulating regulatory T lymphocytes (Tregs), and blood eosinophil numbers were measured. RESULTS: Levels of serum 25OHD in the GFA children ranged 35.5-156.4nmol/L, with a mean value similar to that of the healthy controls. Compared to those with normal 25OHD (>/=75nmol/L), GFA children with low 25OHD (<75nmol/L) had increased total IgE (84% vs. 54%, P<0.05), persistent blood eosinophilia (56% vs. 25%, P<0.05), and delayed resolution of symptoms after food allergen elimination (odds ratio 3.51, 95% CI 1.00-12.36, P<0.05). Among the GFA children with elevated total IgE, those with low 25OHD had lower circulatory Tregs (8.79+/-2.4% vs. 10.21+/-1.37%, P<0.05), higher total IgE (1197.5+/-1209.8 vs. 418.5+/-304.6kU/L, P<0.05), and persistent eosinophilia (0.61+/-0.52 vs. 0.31+/-0.15x10(9)cells/L, P<0.05) compared to those with normal 25OHD. In addition, serum 25OHD concentrations inversely correlated with total IgE (R=-0.434, P<0.05), and positively with Treg population (R=0.356, P<0.05). CONCLUSION: Low serum vitamin D status correlates with stronger allergic immune response in GFA children. CI - Copyright (c) 2017 SEICAP. Published by Elsevier Espana, S.L.U. All rights reserved. FAU - Guo, H AU - Guo H AD - Gastroenterology Unit, Nanjing Children's Hospital Affiliated with Nanjing Medical University, 72 Guangzhou Road, Nanjing, Jiangsu 210008, China. FAU - Zheng, Y AU - Zheng Y AD - Gastroenterology Unit, Nanjing Children's Hospital Affiliated with Nanjing Medical University, 72 Guangzhou Road, Nanjing, Jiangsu 210008, China. FAU - Cai, X AU - Cai X AD - Gastroenterology Unit, Nanjing Children's Hospital Affiliated with Nanjing Medical University, 72 Guangzhou Road, Nanjing, Jiangsu 210008, China. FAU - Yang, H AU - Yang H AD - Gastroenterology Unit, Nanjing Children's Hospital Affiliated with Nanjing Medical University, 72 Guangzhou Road, Nanjing, Jiangsu 210008, China. FAU - Zhang, Y AU - Zhang Y AD - Gastroenterology Unit, Nanjing Children's Hospital Affiliated with Nanjing Medical University, 72 Guangzhou Road, Nanjing, Jiangsu 210008, China. FAU - Hao, L AU - Hao L AD - Gastroenterology Unit, Nanjing Children's Hospital Affiliated with Nanjing Medical University, 72 Guangzhou Road, Nanjing, Jiangsu 210008, China. FAU - Jin, Y AU - Jin Y AD - Gastroenterology Unit, Nanjing Children's Hospital Affiliated with Nanjing Medical University, 72 Guangzhou Road, Nanjing, Jiangsu 210008, China. FAU - Yang, G AU - Yang G AD - Gastroenterology Unit, Nanjing Children's Hospital Affiliated with Nanjing Medical University, 72 Guangzhou Road, Nanjing, Jiangsu 210008, China. Electronic address: gyangnj@qq.com. LA - eng PT - Journal Article DEP - 20170727 PL - Singapore TA - Allergol Immunopathol (Madr) JT - Allergologia et immunopathologia JID - 0370073 RN - 0 (Allergens) RN - 1406-16-2 (Vitamin D) RN - 37341-29-0 (Immunoglobulin E) SB - IM MH - Allergens/immunology MH - Child MH - Child, Preschool MH - Eosinophils/*immunology MH - Female MH - Food Hypersensitivity/*immunology MH - Gastrointestinal Tract MH - Humans MH - Immunoglobulin E/*blood MH - Male MH - T-Lymphocytes, Regulatory/*immunology MH - Vitamin D/*blood OTO - NOTNLM OT - Eosinophilia OT - Gastrointestinal food allergy OT - Regulatory T cells OT - Total immunoglobulin E OT - Vitamin D EDAT- 2017/08/02 06:00 MHDA- 2018/07/18 06:00 CRDT- 2017/08/01 06:00 PHST- 2017/01/09 00:00 [received] PHST- 2017/03/19 00:00 [revised] PHST- 2017/03/30 00:00 [accepted] PHST- 2017/08/02 06:00 [pubmed] PHST- 2018/07/18 06:00 [medline] PHST- 2017/08/01 06:00 [entrez] AID - S0301-0546(17)30072-1 [pii] AID - 10.1016/j.aller.2017.03.005 [doi] PST - ppublish SO - Allergol Immunopathol (Madr). 2018 Jan-Feb;46(1):39-44. doi: 10.1016/j.aller.2017.03.005. Epub 2017 Jul 27.