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Protein expression of α-smooth muscle actin (α-SMA) in the corpus cavernosum. Expression of endogenous α-SMA protein in penile tissue was quantified by western blot. β-actin was used as an internal control to assure equal loading. The bar graph represents the relative expression of α-SMA to β-actin expression. (mean±SEM; *p<0.05 and #p<0.01 compared with the BCNI group; $p<0.01; N.S., not significant). Color images available online at www.liebertpub.com/tea
