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Increased bcl-2 protein levels in 4-phenyl-1-(4-phenylbutyl) piperidine (PPBP)- treated neurons exposed to 2 h oxygen–glucose deprivation (OGD) and 30 min, 3 or 6 h of recovery. Data are compiled from three separate experiments for each exposure and treatment condition. Protein levels are normalized to β-actin. *P < 0.05 from PPBP treatment at 6 h.
