an increasing trendP = 0.7760
Compared with the Model group, DSG treatment significantly reduced ET-1-positive area across all dose groups (all P < 0.05) and significantly increased eNOS-positive area in the DSG-M ( P = 0.0195) and DSG-H groups ( P < 0.001), while the DSG-L group showed an increasing trend in eNOS expression without statistical significance ( P = 0.7760).