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Relative scratch wound recovery of CCD-986sk cells after incubation with rhTGF-β or Citrus junos callus extract for 24 h. (a) Time-course of relative scratch wound recovery (area) of CCD-986sk cells; (b) representative micrographs of scratch wounds treated with rhTGF-β (100 and 500 ng/mL) or Citrus junos callus extract (500 μg/mL). Values are means ± standard deviation (n = 6 per group). *** p < 0.001 compared with the untreated control. Scale bar in (b): 300 µm.
