• Sepideh Moradkhani, Abdollah Jafarzadeh, Nasrin Bazargan-Harandi, Mohammad Reza Baneshi, and Mohammad Mahdi Mohammadi.
• Department of Immunology; Cardiovascular Research Center, Institute of Basic and Clinical Physiology, Kerman, Iran.
• Indian J Med Res. 2018 Sep 1; 148 (3): 317-322.

Background & ObjectivesAtopic dermatitis (AD) is one of the most common pathologic conditions of skin in children. The effect of breastfeeding on the risk of AD remains controversial. The aim of this study was to determine the counts of cytokine-producing cells in the mothers' breast milk of infants with and without AD to assess association, if any.MethodsBreast milk samples (10 ml) were obtained from mothers of 25 infants with AD and of 26 healthy infants as a control group. The number of cytokine-producing cells including interferon-gamma (IFN-γ), tumour necrosis factor-alpha (TNF-α), interleukin-13 (IL-13) and IL-4 in the milk samples was determined using an enzyme-linked immunospot assay technique.ResultsThe mean of IL-13-producing cells in milk was significantly lower in mothers of AD-affected infants in comparison with mothers of normal infants (324.91±255.45 vs. 538.93±465.39, P<0.05). There were no significant differences between mothers of infants with and without AD regarding milk count of IFN-γ-, TNF-α- and IL-4-producing cells.Interpretation & ConclusionsOur results showed lower number of IL-13-producing cells in milk of mothers of infants with AD. Therefore, lower count of IL-13-producing cells in mothers' milk may confer a susceptibility to AD. Further studies with a large number of samples need to be done to confirm our findings.

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