Figure 9: Histopathological changes in heart from (a) control and Ajwa extract groups showing normal cardiac muscles. (b) Combined Ajwa extract-lead intoxicated group showing mild congestion and cloudy swelling with loss of muscle striations. (c and d) Lead intoxicated group without treatment showed (c) marked vascular congestion and interstitial hemorrhage, (d) cardiac muscles signs of necrosis (pyknosis, kariorrhexis and karyolysis) (H and E stain, 40x).