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Wang L, Zhang Y, Geng S, Ma L, Wang Y, Han D, Fan G, Zhang W, Lv Y, Ma J. A Chinese drug-compatibility-based approach to purslane hydrogels for acute eczema therapy. Front Pharmacol 2025; 16:1504120. [PMID: 39981178 PMCID: PMC11841398 DOI: 10.3389/fphar.2025.1504120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2024] [Accepted: 01/10/2025] [Indexed: 02/22/2025] Open
Abstract
Purslane (Portulaca oleracea L.) with heat-clearing and detoxicating, anti-inflammatory and resolving swelling, relieving itching and astringing function, has remarkable efficacy for acute eczema. However, most of the clinical applications of purslane are freshly prepared decoction, not as easy to apply as cream, because the decoction is easy to breed bacteria and easy to oxidize. Here, based on the theory of Chinese medicines compatibility, we made a purslane-tannic acid hydrogel (PL-HATA) by simple methods under mild conditions to solve the drawbacks of easy oxidation and inconvenience of use of Purslane. The antimicrobial activity of PL-HATA hydrogel can exert an excellent antimicrobial effect, reducing the flora on the skin of acute eczema and further relieving the symptoms of acute eczema. At the same time, it creates a normal reactive oxygen species (ROS) microenvironment for acute eczema and promotes recovery from acute eczema. It also improves the symptoms of acute eczema by promoting cell proliferation and migration. Importantly, it resulted in improved skin lesion scores, scratching behavior, eosinophil infiltration, swelling and inflammation levels, immune homeostasis, and histopathological changes in rats with acute eczema. Besides, HATA hydrogel is not only suitable for Purslane's decocted metabolites but also for Purslane's freshly squeezed metabolites. This purslane application protocol solved the drawbacks of Purslane's decoction, improved its storage stability and convenience of use, which is the key issue to further promote its clinical application.
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Affiliation(s)
- Ling Wang
- School of Pharmacy, Shandong Second Medical University, Weifang, Shandong, China
| | - Yuzhong Zhang
- School of Pharmacy, Shandong Second Medical University, Weifang, Shandong, China
| | - Shenglin Geng
- School of Pharmacy, Shandong Second Medical University, Weifang, Shandong, China
| | - Lan Ma
- School of Pharmacy, Shandong Second Medical University, Weifang, Shandong, China
| | - Yiran Wang
- School of Pharmacy, Shandong Second Medical University, Weifang, Shandong, China
| | - Dongxu Han
- School of Pharmacy, Shandong Second Medical University, Weifang, Shandong, China
| | - Guojuan Fan
- Dermatology, Weifang Hospital of Traditional Chinese Medicine, Shandong Second Medical University, Weifang, Shandong, China
| | - Weifen Zhang
- School of Pharmacy, Shandong Second Medical University, Weifang, Shandong, China
- Collaborative Innovation Center for Target Drug Delivery System, Shandong Second Medical University, Weifang, Shandong, China
- Shandong Engineering Research Center for Smart Materials and Regenerative Medicine, Shandong Second Medical University, Weifang, Shandong, China
| | - Yanna Lv
- School of Pharmacy, Shandong Second Medical University, Weifang, Shandong, China
| | - Jinlong Ma
- School of Pharmacy, Shandong Second Medical University, Weifang, Shandong, China
- Collaborative Innovation Center for Target Drug Delivery System, Shandong Second Medical University, Weifang, Shandong, China
- Shandong Engineering Research Center for Smart Materials and Regenerative Medicine, Shandong Second Medical University, Weifang, Shandong, China
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Li Z, Yin H, Wang Y, Wang S, Wu Y, Qiu Z, Yao X, Gu C, Li W. Temporal and Topographical Heterogeneities in Clinical Manifestations of Atopic Dermatitis in China. J Clin Med 2025; 14:840. [PMID: 39941511 PMCID: PMC11818233 DOI: 10.3390/jcm14030840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2024] [Revised: 01/04/2025] [Accepted: 01/20/2025] [Indexed: 02/16/2025] Open
Abstract
Background/Objective: Atopic dermatitis (AD) is a chronic inflammatory skin disease characterized by diverse clinical manifestations. However, variations in its clinical presentations across different ages, genders, anatomical sites, and seasons remain incompletely understood. The objective was to explore the clinical heterogeneities of AD using data from the Chinese non-selective registration system. Methods: A prospective analysis was conducted on 3829 AD patients enrolled in the Chinese Non-selective Registry for AD (CNRAD) at hospital settings from 2020 to 2022. Demographic profiles; distribution, type, and severity of the skin lesion; laboratory findings; allergic comorbidities; family history; and exacerbating factors were analyzed. Results: The male-to-female ratio was 0.92 among adolescent and adult AD patients but increased to 2.11 in elderly AD patients, highlighting an age-dependent gender difference in AD prevalence. Age groups displayed distinct anatomical preferences for lesion distribution, with reduced involvement of the cubital and popliteal fossae in adult and elderly patients. Based on skin lesion characteristics, ten clinical subtypes of AD were proposed. Elderly AD patients exhibited higher severity, compared to adolescence and adult AD patients, with male patients being more severe than females. Elderly AD patients showed a lower proportion of extrinsic type, compared to childhood AD patients. Seasonal change emerged as the most important factor triggering AD flares. Conclusions: This study provides new insights into the heterogeneities of AD clinical manifestations in the Chinese population, demonstrating their significant dependence on temporal factors, including age and season.
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Affiliation(s)
- Zheng Li
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai 200040, China; (Z.L.); (H.Y.); (Y.W.); (S.W.); (Y.W.); (Z.Q.)
| | - Huibin Yin
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai 200040, China; (Z.L.); (H.Y.); (Y.W.); (S.W.); (Y.W.); (Z.Q.)
| | - Yu Wang
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai 200040, China; (Z.L.); (H.Y.); (Y.W.); (S.W.); (Y.W.); (Z.Q.)
| | - Shangshang Wang
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai 200040, China; (Z.L.); (H.Y.); (Y.W.); (S.W.); (Y.W.); (Z.Q.)
| | - Yuemeng Wu
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai 200040, China; (Z.L.); (H.Y.); (Y.W.); (S.W.); (Y.W.); (Z.Q.)
| | - Zhuoqiong Qiu
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai 200040, China; (Z.L.); (H.Y.); (Y.W.); (S.W.); (Y.W.); (Z.Q.)
| | - Xu Yao
- Department of Allergy and Rheumatology, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing 210042, China;
| | - Chaoying Gu
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai 200040, China; (Z.L.); (H.Y.); (Y.W.); (S.W.); (Y.W.); (Z.Q.)
| | - Wei Li
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai 200040, China; (Z.L.); (H.Y.); (Y.W.); (S.W.); (Y.W.); (Z.Q.)
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