Corpuscular Hemoglobin Concentration). The hematological parameters in rats treated with V. amygdalina plant extract improved the hematological parameters in a dose dependent manner. V. amygdalina extract treatment effect on liver function parameters of control and NEU exposed rats are listed in Table . N-Nitroso-N-ethyl urea elevated liver enzymes level in carcinogen exposed rats compared to the control. V. amygdalina extract gradually restores elevated levels in a dose dependent manner (Table ).