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Figure 6


Fig. 6. Effect of L-ascorbic acid on the CuCl2–induced p38-MAPK phosphorylation. (A) Protein (50 µg) from Rana ridibunda hearts perfused without (Con) or with 100 µmol l–1 L-ascorbic acid (ASC) for 15 min, in the presence or absence of 500 µmol l–1 CuCl2, was analysed by immunoblotting with a phosphospecific anti-p38-MAPK antibody (top). Equal loading was verified by blotting identical samples with an anti-actin-specific antibody (bottom). (B) Densitometric analysis of phospho-p38-MAPK bands by laser scanning. Results are means ± s.e.m. for three independent experiments performed with similar findings. *P<0.05, {dagger}P<0.001 vs control value.





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