Light micrographs of the PAS-stained sections of rat's renal cortex. Strong positive PAS reaction is seen within the brush border (arrow) of proximal tubular epithelial cells (P), basement membrane (arrow head) of both proximal (P) and distal (D) convoluted tubules and in the outer (*) capsular membrane (C) of control (A) and aged garlic extract-treated (B) rats. Weak reaction is seen in the remaining brush border (arrow), basement tubular membranes (arrow head) and outer capsular membrane (*) in cisplatin-treated rats (C). Strong positive PAS reaction is seen in the brush border (arrow), tubular membrane (arrow head), outer capsular membrane (*) in combined aged garlic extract and cisplatin-treated rats (D). G: glomerulus; C Bowman's capsule; P: proximal convoluted tubules; D: distal convoluted tubules. PAS stain x 600.