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Figure 5: Cumulative concentration-response curves for ACh in NA-precontracted aortic preparations after 1 month in the absence and presence of L-NAME (at a concentration of 100 ýM 30 min before the experiment). Relaxation response is expressed as percentage. Data are shown as means ▒ SEM. *P < 0.05 (as compared to VD) (VC, EC, VD, ED, and L-NAME represent vehicle-treated control, extract-treated control, vehicletreated diabetic, extract-treated diabetic, and N-nitro-l-arginine methyl ester, respectively)

Figure 5: Cumulative concentration-response curves for ACh in NA-precontracted aortic preparations after 1 month in the absence and presence of L-NAME (at a concentration of 100 ýM 30 min before the experiment). Relaxation response is expressed as percentage. Data are shown as means ▒ SEM. *P < 0.05 (as compared to VD) (VC, EC, VD, ED, and L-NAME represent vehicle-treated control, extract-treated control, vehicletreated diabetic, extract-treated diabetic, and N-nitro-l-arginine methyl ester, respectively)