The presence of congenitally impaired skin barrier followed by atopic dermatitis (AD) is an initial step in the atopic march. The maintenance of acidic pH in the stratum corneum (SC) has been suggested as a therapeutic or preventive strategy for barrier impairment caused by skin inflammation. To determine whether an AD murine model, flaky tail mice, with inherited filaggrin deficiency could develop airway inflammation by repeated topical application followed by nasal inhalation of house dust mite (HDM) antigen (defined as a novel "atopic march animal model"), and whether maintenance of an acidic SC environment by continuous application of acidic cream could interrupt the following atopic march. During the course of HDM treatment, acidic cream (pH2.8) or neutral cream (pH7.4) was applied to flaky tail mice twice daily. Repeated applications and inhalations of HDM to flaky tail mice induced AD skin lesions followed by respiratory allergies. Maintenance of SC acidity inhibited the occurrence of respiratory allergic inflammation as well as AD-like skin lesions. Collectively, a novel atopic march model could be developed by repeated epicutaneous and nasal applications of HDM to flaky tail mice, and that the acidification of SC could prevent the atopic march from AD to respiratory allergy.
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Expert Opin Drug Saf
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Department of Pharmacy, Yantai Yuhuangding Hospital Affiliated to Qingdao University, Yantai, Shandong, China.
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Allergy and Clinical Immunology Unit, Meir Medical Center, Kfar Saba, Israel.
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View Article and Find Full Text PDFAllergol Int
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Department of Dermatology, Tohoku University Graduate School of Medicine, Sendai, Japan.
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View Article and Find Full Text PDFNeuro Endocrinol Lett
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Department of Internal Medicine, Tokyo Saiseikai Central Hospital, Minato-ku, Tokyo, Japan.
A 33-year-old Japanese man with a history of atopic dermatitis and asthma had never been diagnosed with any apparent glucose intolerance but had been aware of palpitations for >10 years. A 75g oral glucose tolerance test (OGTT) at his physical examination in March 2021 revealed fasting hyperglycemia and post-load hypoglycemia. An OGTT recheck was performed in May 2021 and was normal.
View Article and Find Full Text PDFJMIR Dermatol
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Department of Dermatology, Lewis Katz School of Medicine, Temple University, 225 Market Street, Philadelphia, PA, 19106, United States, 1 215-482-7546.
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