The impact of temperature on the skin barrier and atopic dermatitis
ANNALS OF ALLERGY ASTHMA & IMMUNOLOGY(2023)
摘要
Climate change is a global threat to public health and causes or worsens various diseases including atopic derma-titis (AD), allergic, infectious, cardiovascular diseases, physical injuries, and mental disorders. The incidence of allergy, such as AD, has increased over the past several decades, and environmental factors such as climate change have been implicated as a potential mechanism. A substantial amount of literature has been published on the impact of climate factors, including cold and hot temperatures, on the skin barrier and AD. Studies in sev-eral countries have found a greater incidence of AD in children born in the colder seasons of fall and winter. The effect of cold and warm temperatures on itch, skin flares, increased outpatient visits, skin barrier dysfunction, development of AD, and asthma exacerbations have been reported. Understanding mechanisms by which changes in temperature influence allergies is critical to the development of measures for the prevention and treatment of allergic disorders, such as AD and asthma. Low and high temperatures induce the production of proinflammatory cytokines and lipid mediators such as interleukin-1b, thymic stromal lymphopoietin, and pros-taglandin E2, and cause itch and flares by activation of TRPVs such as TRPV1, TRPV3, and TRPV4. TRPV antago-nists may attenuate temperature-mediated itch, skin barrier dysfunction, and exacerbation of AD.(c) 2023 American College of Allergy, Asthma & Immunology. Published by Elsevier Inc. All rights reserved.
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