A, representative immunoblots of skeletal muscle tissue samples from non-ND, and DM patients, pre: pre-CPB, post-: post-CPB; B, Densitometric evaluation of immunoblot band intensity shows no significant differences in the levels of COX-1 between the two groups, or between pre- and post-CPB; C, representative immunoblots of skeletal muscle tissue samples from non-ND, and DM patients.; D, Densitometric evaluation of immunoblot band intensity shows significant differences in the levels of COX-2 between DM and ND groups, or between pre- and post-CPB, Data are means ± SD, n= 6/group, *P<0.05 vs. pre-CPB; @ P<0.05 vs. ND-pre-CPB, $P<0.05 vs. ND-post-CP/CPB.