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The effect of 3,3′,4,4′-THS (A, C) and 3,3′,4,4′,5,5′-HHS (B, D) on the production of VEGF and IL-8/CXCL8 by young and senescent HPMCs. The asterisks indicate a significant difference compared to the control group. The experiments were performed in triplicates with HPMC cultures derived from 8 different donors
