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Flow cytometry showed that BPA reduced the proportion of Tregs in spleens of mice with OVA-induced AR. CD4+ T cells (a). Representative staining of CD4+Helios+Foxp3+Tregs from each group. The numbers in the upper right quadrants are the proportions of Tregs (b). The statistical data (c). Data are expressed as means ± SEM; n = 5 per group. ∗P < 0.05; ∗∗∗P < 0.001.
