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Published on: July 10, 2018
High-intensity swimming exercise increases dust mite extract and 1-chloro-2,4-dinitrobenzene-derived atopic
Sang-Hyun Kim1, Eun-Kyung Kim, Eun-Ju Choi
1Laboratory of Immunotoxicology, Department of Pharmacology, School of Medicine, Kyungpook National University, Daegu, 700-422, Republic of Korea.
Abstract:
The aim of this study was to investigate the effect of high-intensity swimming exercise (HISE) on atopic dermatitis (AD). For the study, we established an AD model in BALB/c mice by repeated local exposure of house dust mite extract (Dermatophagoides farinae extract, DFE) and 1-chloro-2,4-dinitrobenzene (CDNB) to the ears. After HISE for 4 weeks, epidermal thickness, mast cell infiltration, serum immunoglobulin E (IgE), and histamine were measured. In addition, the gene expression of interleukin (IL)-5 and IL-31 in the ears was assayed. HISE increased DFE/CDNB-induced AD symptoms based on ear thickness, histopathological analysis, and serum IgE level. Moreover, HISE exercise stimulated mast cell infiltration into the ear, elevation of serum histamine, and DFE/CDNB-induced expression of IL-5 and IL-31 in the ears in the AD model. Taken together, our results indicate the possibility that HISE-induced stress gives rise to AD symptoms through the stimulation of IgE level by increasing IL-5 and IL-31 production.
