https://www.liebertpub.com/doi/abs/10.1089/derm.2023.0340
Dermatitis , published Online: 17 April 2024, https://doi.org/10.1089/derm.2023.0340
Cheng-Yuan Li, MD, MSc, Wan-Chen Chang, BSN, BS, Mu-Hong Chen, MD, PhD, Pei-Chi Tu, MD, PhD, Tai-Li Chen, MD, Chih-Chiang Chen, MD, PhD, Yun-Ting Chang, MD, PhD, You-Yin Chen, PhD, and Ya-Mei Bai, MD, PhD
Abstract: Background: Atopic dermatitis (AD) is a chronic inflammatory skin disease. However, few studies have investigated brain changes associated with chronic inflammation. We hypothesized that chronic inflammation might be related to brain structural alterations in patients with AD.
Objectives: To investigate the association between disease severity (Eczema Area and Severity Index [EASI]), proinflammatory cytokines, and differences in brain gray matter (GM) volume in patients with AD.
Methods: Nineteen patients with AD and 19 age- and sex-matched healthy subjects were enrolled. All participants underwent clinical assessment and brain magnetic resonance imaging. Voxel-based morphometry was performed to analyze GM volume differences.
Results: Patients with AD exhibited significantly decreased GM volume in many brain regions, such as bilateral precentral gyrus, right frontal pole, and right middle temporal gyrus (P < 0.001), compared with healthy subjects. Notably, in patients with AD, the GM volume in right middle temporal gyrus was negatively associated with both EASI score and proinflammatory cytokines (sIL-2R [soluble interleukin 2 receptor] and TNF-α receptor-1), whereas the GM volume in left precentral gyrus was negatively associated with both EASI score and proinflammatory cytokines (sIL-2R and CRP).
Conclusion: Patients with AD demonstrated significant brain GM volume reduction in many brain regions, which is related to disease severity and proinflammatory cytokines.
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