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Effects of PRE (0.1–10 μg/mL) and punicalagin (0.1–10 μg/mL) in combination with 28.76 μg/mL (0.1 mM) Zn (II), on human gingival fibroblast scratch wound migration parameters, over 48 h. (a) Cell displacement (Td), (b) overall velocity (Td/t), (c) distance travelled (Tt), and (d) migration speed (Tt/t). Values are presented as the mean ± SEM (n = 3, * p < 0.05, ** p < 0.01).
