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Cardiac CXCR4 (SDF-1 receptor) expression in male and female hearts subjected to I/R. Western blots of CXCR4 and GAPDH between male and female hearts are shown in the top. Bottom is bar graph of densitometry data of CXCR4 represented as % of GAPDH. Results are mean ± SEM, n=4–6/group.
