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The Comparison of Salivary IgA and IgE Levels in Children with Breast- and Formula- Feeding During Infancy Period

Author(s): A. Jafarzadeh | GH. Hassanshahi | M. Kazemi-Arababadi | A. Mostafaee | M. Sadeghideh | MA. Nematollahi

Journal: Dental Research Journal
ISSN 1735-3327

Volume: 4;
Issue: 1;
Start page: 11;
Date: 2007;
Original page

Keywords: Breast Feeding | Formula Feeding | Saliva | IgA | IgE | Children

Introduction: Oral local immune factors may play a protective role against oral diseases and defend against microbial agents. Salivary immunoglobulin A (IgA) is a major factor for the local host defence against caries and periodontal disease. The aims of this study were to determine the concentrations of salivary IgA and IgE levels in breast-fed and formula-fed children in infancy period.Methods and Materials: Totally, 80 healthy 5 years old children were included in the study. According to type of feeding in infancy period, the children divided into two groups: 50 breast-fed and 30 formula-fed. One milliliter of saliva was collected from each participant, centrifuged, and stored at -70 )C. The salivary IgA and IgE concentrations were measured, using ELISA technique.Results: In breast-fed children, the salivary IgA level (39.6 mg/l ± 17.3) was significantly higher than that in formula-fed children (26.9 mg/l ± 14) (P=0.0001). However, the salivary IgE level was significantly lower in breast-fed children, comparing with formula fed ones (5.01 IU/ml ± 19.70 vs. 11.74 IU/ml ± 39.40) (P=0.047).Discussion: These results suggest that breast feeding enhances salivary IgA level in the early period of life which may contribute in oral cavity immunity. Higher salivary IgE level observed in formula-fed subjects may have a potential role in development of allergic or inflammatory reactions.

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