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Fig. 4. Effect of Vinp on the infiltration of eosinophils and mast cells into the skin. (A) Congo red and (C) Toluidine blue staining procedures were used to identify eosinophils and mast cells. Red and yellow arrows indicate the Congo red-stained eosinophils and mast cells, respectively (left hand side: magnification 400×; scale bar: 100 µm). (B) Eosinophils and (D) mast cells were counted using ImageJ software. Data represent mean ± SD (n = 5 or 6). Data were considered significant at ###p < 0.001 compared with the control group and **p < 0.01 and ***p < 0.001 compared with the DNCB group. DNCB, 1-chloro-2,4-dinitrobenzene; Vinp, vinpocetine; Dex, dexamethasone.
Korean J Physiol Pharmacol 2024;28:303-312
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