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D-panthenol stimulated the growth of human outer root sheath cells (hORSCs). (A) The growth of hORSCs was assessed after 24 h treatment of D-panthenol. (B) Relative mRNA expression ratios of Bcl2 to Bax were calculated after 24 h treatment of D-panthenol. (C) mRNA expression of senescence markers (p21 and p16) in cultured hORSCs after 24 h treatment of D-panthenol. * p < 0.05, ** p < 0.01 versus control group. Data are expressed as mean ± SD.
