“…In this concern, previous studies revealed that water extract of papaya fruits contains significant amounts of α-tocopherol (Ching and Mohamed, 2001), benzylisothiocyanate (Basu and Haldar, 2008), alkaloids such as carpasemine and carpain (Iyer et al, 2011), lycopene (van A photo micrograph in kidney tissue of (A) control rat showing the normal density of total protein in renal tubular epithelial cells manifested by the blue color reaction, (B) rats treated with WE showing the normal distribution of bromophenol blue reaction, (C) rats treated with EE showing normal distribution of bromophenol blue reaction in different renal tissues, (D) rats fed OTA-contaminated diet showing the distribution of protein reaction in renal tubules, renal corpuscles and the hyaline casts revealed weak reaction in some tubules (arrow) and mild reaction in the glomruler tufts, (E) rats fed OTA-contaminated diet and treated wit WE showing strong reaction in the renal tubules (inset) and a moderate reaction in the glomeruli and (F) rats fed OTA-contaminated diet and treated with EE showing a moderate reaction in the renal tubules have moderate reaction and mild reaction in the glomeruli. Breemen and Pajkovic, 2008), proteolytic enzymes such as chymopapain and papain (Seigler et al, 2002), cystatin, ascorbic acid, cyanogenic glucosides and glucosinolates (Seigler et al, 2002), triterpenes, organic acids (Cowan, 1989;Osuna-Torres et al, 2005), as well as flavonoids (Miean and Mohamed, 2001).…”