Research Article

Panax Notoginseng Protects against Diabetes-Associated Endothelial Dysfunction: Comparison between Ethanolic Extract and Total Saponin

Figure 3

PNS and PNE stimulate AMPKα/eNOS and reduce ER stress. Western blotting showing (a) the phosphorylation of eNOS at Ser1177 (p-eNOS; 140 kDa), (b) phosphorylation of AMPKα at Thr172 (p-AMPKα; 62 kDa), and (c) phosphorylation of eIF2α at Ser52 (p-eIF2α; 36 kDa) compared to their corresponding total protein in mouse aortas treated with high glucose (HG, 30 mM) and PNS (10 μg/mL) for 48 h. (d–f) Protein expressions in mouse aortas treated with PNE (100 μg/mL). Data are of 4 experiments. vs. normal glucose (NG, 5.5 mM with mannitol); vs. HG.
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