Fig. 13

Effect of n-hexane leaf extract of Ipomoea batatas L. on kidney. (1) Control rat kidney composed of A—glomerulus, B—tubules and C—interstitial space, (2) phenylhydrazine administered alone showed A—focal vascular intimal erosion, (3) at 5 mg/kg of ferrous (iii) hydroxide poly-maltose showed A—mild interstitial congestion, (4) 125 mg/kg n-hexane extract showed A, mild interstitial congestion (5) 250 mg/kg n-hexane extract showed A, mild interstitial congestion and (6) 500 mg/kg n-hexane extract showed A, normal renal architecture in the kidney. Using haematoxylin–eosin dye with X 40 magnification