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Proapoptotic effects of ceramide analogs C2, AL6, C6, and C8 on proliferating (A) HMVEC-d, (B) HUVEC, (C) MIA PaCa-2, and (D) Capan-1 cells, after 144 hours of treatment. Columns and bars, mean values ± SD, respectively. *P < .05 versus vehicle-treated controls. Control- stands for the negative control of the ELISA kit.
