• Qianying Yu, Wenxia Lin, Jie Zhang, Li Peng, Qiaoqiao Kong, Rubin Zhong, Yan Lan, Min Xiao, and Mingling Chen.
• Department of Dermatology, Hospital of Chengdu University of Traditional Chinese Medicine.
• Medicine (Baltimore). 2020 Sep 4; 99 (36): e22014.

BackgroundThe pathogenesis of chronic spontaneous urticaria (CSU) is not clear, but its occurrence is closely related to the immune state of the body, that is, the balance of T cell subsets. Previous studies have confirmed that the dynamic imbalance of Th1/Th2 cells in CD4+T cell subsets of T cell subsets is closely related to the pathogenesis of CSU, but there are few studies on the relationship between the dynamic imbalance of Th17/Treg cells in CD4+T cell subsets and the pathogenesis of CSU. The purpose of this study is to evaluate the relationship between Th17/Treg cells expression in peripheral blood and CSU, so as to provide a reference basis for the pathogenesis of CSU.MethodsPubMed, Embase, CENTRAL, Web of Science, China Biology Medicine Database, China National Knowledge Database, Wan Fang Database, and Chongqing VIP Database will be searched to collect case-control studies and cohort studies evaluating the relationship between Th17/Treg cells expression in peripheral blood and CSU. The search time limits will be from the establishment of the database to December 2020. The meta-analysis will be carried out with the RevMan V.5.3 statistical software. The quality of all included studies will be evaluated by the Newcastle-Ottawa scale.ResultsThe results of this study will comprehensively evaluate the Th17/Treg cells expression levels in peripheral blood of patients with CSU, and provide a reference basis for the pathogenesis of CSU.ConclusionThe findings of this study may provide new evidence for the relationship between Th17/Treg cells balance in peripheral blood and CSU.Osf Registration NumberDOI 10.17605/OSF.IO/S8MYW.

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