Sorcin decreases cytochrome c release induced by hyperglycemia. Western blot shows protein levels of cytochrome c in the cytosolic fraction in normal glucose (NG, 5.5 mM), high glucose (HG, 25 mM), and HG + Adv-sorcin (HG + Sor). NG- and HG-treated cells received an empty adenovirus as control. Values (means ± SE, n = 4 for each group) are averages of densitometry values of each sample and were normalized with actin. *P < 0.05 vs. NG. &P < 0.5 vs. HG.