Fig. 7
Immunohistochemical staining of nuclear factor-Kappa B (NF-κB) in rat liver. A) Control negative group showing no expression of NF-κB. B). CCL4-treated showed significant increase in NF-kB immunoreactivity in the cytoplasm of hepatocytes. The brown color indicates NF-kB positivity. C) CCL4 + L. sativum-treated-group showing significant reduction in NF-kB immunostaining. D) CCL4 + tadalafil-treated group showing significant reduction in NF-κB immunostaining. E) CCL4 + L. sativum + tadalafil treated-group showing no expression of NF-κB.