Increased food allergy and vitamin D: Randomized, double-blind, placebo-controlled trial
| Autor: | Naoe Akiyama, Chihiro Norizoe, Takaaki Segawa, Hidetoshi Mezawa, Mitsuyoshi Urashima, Hiroshi Tachimoto, Hiroyuki Ida |
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| Rok vydání: | 2014 |
| Předmět: |
Vitamin
Pediatrics medicine.medical_specialty medicine.diagnostic_test business.industry Placebo-controlled study Atopic dermatitis medicine.disease Placebo chemistry.chemical_compound chemistry Food allergy Pediatrics Perinatology and Child Health medicine Vitamin D and neurology Facial eczema SCORAD business |
| Zdroj: | Pediatrics International. 56:6-12 |
| ISSN: | 1328-8067 |
| Popis: | Background To elucidate whether maternal vitamin D supplementation during lactation improves infantile eczema and other subsequent allergic disorders, a randomized, double-blind, placebo-controlled trial was performed. Methods Mothers (n = 164) of infants with facial eczema at 1 month check-up were randomly assigned to receive vitamin D3 supplements (n = 82; 800 IU/day) or placebo (n = 82) for 6 weeks from May 2009 to January 2011. The primary outcome was infantile eczema quantified on Scoring Atopic Dermatitis (SCORAD) index at 3 month check-up, and the secondary outcomes were atopic dermatitis, food allergy, and wheeze diagnosed by doctors up to 2 years of age. Results There was no significant difference in SCORAD at 3 month check-up between the two groups. Doctor-diagnosed food allergy was significantly more common up to age 2 years in the vitamin D group (10/39, 25.7%) than in the placebo group (3/40, 7.5%; risk ratio (RR), 3.42; 95% confidence interval [CI]: 1.02–11.77; P = 0.030). Moreover, at least one secondary outcome was also significantly more common in the vitamin D group (17/39, 43.6%) than in the placebo group (7/40, 17.5%; RR, 2.49; 95%CI: 1.16–5.34; P = 0.012). Conclusions Vitamin D supplementation may not decrease the severity of infantile eczema at 3 months of age, but may rather increase the risk of later food allergy up to 2 years of age. Because a large number of subjects was lost to follow up, further study is needed to confirm the findings. |
| Databáze: | OpenAIRE |
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