Figure 19. Photomicrograph of the liver section of rats administered with 0.5 mL normal saline and aqueous extracts of N. campestris for 28 days. A: Normal saline treated liver shows normal hepatic plates (long arrow) and portal vein (short arrow); B: 100 mg/kg body weight aqueous extract of N. campestris treated liver shows mild hepatic necrosis; C: 300 mg/kg body weight aqueous extract of N. campestris treated liver shows portal congestion (long arrow) and bile lakes (short arrow); D: 600 mg/kg body weight aqueous extract of N. campestris treated liver shows moderate hepatic necrosis.
Haematoxylin and eosin staining (H&E), magnification 40×.