Beneficial Effects of Paeoniflorin Enriched Extract on Blood Pressure Variability and Target Organ Damage in Spontaneously Hypertensive Rats

Figure 8

Effect on vascular lesions after being intervened by paeoniflorin enriched extract (PG) for seven weeks. (a) Representative photomicrograph of histopathologic observation for aorta by Masson’s trichrome staining (40). (b) Representative photomicrograph of histopathologic observation for aorta by Masson’s trichrome staining (400). (c) Representative photomicrograph of histopathologic observation for aorta by hematoxylin-and-eosin staining (H&E) (400). (d) Representative photomicrograph of the eNOS expression in aorta by immunohistochemistry (IHC) (400). MG: model group; MP: metoprolol positive group; PG-H: PG high dose group (90 mg/kg); PG-L: PG low dose group (30 mg/kg).

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