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Apoptosis and senescence-associated secretory phenotype (SASP) in hLFs. A: ratio apoptotic cells to total cells of nonstimulated hLFs (n = 4) in both groups. Bars represent SE P = 0.008. B: fold change of mRNA expression of IL-6, FGF2, and IL-1β (n = 3 per group; P < 0.05).
