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The effect of estrogen on protein kinase A (PKA) expression in arteries with an intact endothelium. The data represent the ratio of the band intensity for the EtOH and estrogen (E2) groups compared to the untreated group for each Western blot. The insert shows a representative raw Western blot for PKA and the loading control, β-actin. * indicates P < 0.05, n = 6.
