FIGURE 4.
Effect of JNK inhibition on insulin signaling through IRS1/Akt/eNOS pathway in the resistin-treated HUEVCs. (A) Resistin (100 ng/mL) increased JNK phosphorylation, which was prevented by TUDCA (N = 7, per condition); (B) TUDCA (500 μg/mL) or JNK inhibitor (12.5 μmol/L) prevented resistin-induced IRS phosphorylation at serine residue (Ser 307); (C,D) JNK inhibitor Sp600125 (12.5 μmol/L) improved insulin signaling molecules pAkt (Ser 473), peNOS (Ser1177) impaired by resistin (N = 7, per condition). ∗p < 0.05, vs. control, #p < 0.05, vs. correspondence resistin group, †p < 0.05 vs. insulin group.