PMID- 29273135 OWN - NLM STAT- MEDLINE DCOM- 20190111 LR - 20190131 IS - 1534-4436 (Electronic) IS - 1081-1206 (Linking) VI - 120 IP - 1 DP - 2018 Jan TI - Complex relationships between vitamin D and allergic sensitization among Puerto Rican 2-year-old children. PG - 84-89 LID - S1081-1206(17)31194-8 [pii] LID - 10.1016/j.anai.2017.10.027 [doi] AB - BACKGROUND: In the United States, Puerto Ricans have a higher prevalence of asthma than other Latino ethnicities. Low vitamin D levels for children living in northern climates could be a factor. OBJECTIVE: To assess serum 25-hydroxyvitamin D [25(OH)D] distributions (a marker of vitamin D) and associations among vitamin D, allergic sensitization, early wheeze, and home/demographic factors. METHODS: Puerto Rican infants born in New York City, with a maternal history of atopy, were enrolled in a birth cohort. Blood was collected at age 2 years (n = 154; 82 males and 72 females). Serum 25(OH)D and immunoglobulin E (IgE) (indoor allergen-specific and total) were determined using immunoassays. Home/demographic characteristics and respiratory symptoms were assessed by questionnaire. RESULTS: The median concentration of 25(OH)D was 22.6 ng/mL; 32% were at risk of deficiency or inadequacy (<12 or 12-19 ng/mL). Serum 25(OH)D levels were lower in the heating (a surrogate for less sun exposure in colder months) compared with nonheating (26.1 vs 22.7 ng/mL, P = .02) season, but were not associated with allergen-specific IgE levels or with level of acculturation (measured by maternal birthplace). However, low 25(OH)D levels (below median) were associated with high total IgE >100 IU/mL (P = .01). Also, 25(OH)D concentrations differed between children who attended daycare and those who did not (21.8 vs 24.5 ng/mL; t test, P = .02). Serum 25(OH)D was not associated with wheeze or asthma by 2 years of age (P = .43). CONCLUSION: Vitamin D deficiency, possibly linked with allergic pathways, may partially explain the trajectory for disproportionate asthma burden among Puerto Ricans, especially those born and raised in colder climates. CI - Copyright (c) 2017 American College of Allergy, Asthma & Immunology. All rights reserved. FAU - Kannan, Srimathi AU - Kannan S AD - Department of Nutrition, School of Public Health and Health Sciences, University of Massachusetts, Amherst, Massachusetts; Department of Food and Nutrition, Southern Illinois University, Carbondale, Illinois. Electronic address: srimathik@gmail.com. FAU - Perzanowski, Matthew S AU - Perzanowski MS AD - Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, New York. FAU - Ganguri, Harish B AU - Ganguri HB AD - Department of Computer Science, Southern Illinois University, Carbondale, Illinois; Kronsys, Inc, Raleigh, North Carolina. FAU - Acevedo-Garcia, Dolores AU - Acevedo-Garcia D AD - The Heller School for Social Policy and Management, Brandeis University, Waltham, Massachusetts. FAU - Acosta, Luis M AU - Acosta LM AD - Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, New York. FAU - Spatcher, Molly AU - Spatcher M AD - Department of Nutrition, School of Public Health and Health Sciences, University of Massachusetts, Amherst, Massachusetts; Eye and Lasik Center, Greenfield, Massachusetts. FAU - Divjan, Adnan AU - Divjan A AD - Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, New York. FAU - Chew, Ginger L AU - Chew GL AD - Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, New York. LA - eng PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PL - United States TA - Ann Allergy Asthma Immunol JT - Annals of allergy, asthma & immunology : official publication of the American College of Allergy, Asthma, & Immunology JID - 9503580 RN - 1406-16-2 (Vitamin D) RN - 37341-29-0 (Immunoglobulin E) RN - A288AR3C9H (25-hydroxyvitamin D) SB - IM MH - Child, Preschool MH - Cohort Studies MH - Follow-Up Studies MH - Humans MH - Hypersensitivity/*epidemiology MH - Immunoglobulin E/blood MH - Infant MH - Infant, Newborn MH - New York City/epidemiology MH - Puerto Rico/ethnology MH - Respiratory Sounds MH - Risk MH - Seasons MH - Vitamin D/*analogs & derivatives/blood MH - Vitamin D Deficiency/*epidemiology EDAT- 2017/12/24 06:00 MHDA- 2019/01/12 06:00 CRDT- 2017/12/24 06:00 PHST- 2017/08/04 00:00 [received] PHST- 2017/09/25 00:00 [revised] PHST- 2017/10/18 00:00 [accepted] PHST- 2017/12/24 06:00 [entrez] PHST- 2017/12/24 06:00 [pubmed] PHST- 2019/01/12 06:00 [medline] AID - S1081-1206(17)31194-8 [pii] AID - 10.1016/j.anai.2017.10.027 [doi] PST - ppublish SO - Ann Allergy Asthma Immunol. 2018 Jan;120(1):84-89. doi: 10.1016/j.anai.2017.10.027.