%0 Journal Article %T Changes Of P21 And Bcl-2 During Induction Of Bladder Inflammation And/Or Bladder Carcinogenesis %A A.A.Sayed1 %A M.A.El-Desoky 2 %A S.Shaarawy %A 3&A.M.Ashmawy4 %J The Egyptian Journal Of Hospital Medicine %D 2012 %I Pan Arab League of Continuous Medical Education %X The effect of E.coli infection in association with dibutylamine and sodium nitrate in induction of bladder inflammation and /or bladder carcinogenesis were investigated in 150 male albino rats, divided into five groups, as follows: The first group(G1) infected by E. coli , The second group (G2), given nitrosamine precursors in the diet , The third group(G3) infected by E. coli and given nitrosamine precursors in the diet ,The fourth group(G4) infected by E. coli , given nitrosamine precursors in the diet and received standard diet containing 1% Curcumin powder mixed in the diet and the fifth group (G5) , served as control group .Results:The worst histopathological changes are in G3 . A highly significant decrease in the mean cell lysate level of p21was found in different studied groups(G1,G2&G3) especially in(G3) where P values in these groups when compared to control group were (P < 0.0001) . In curcumin treated group(G4), there were downregulation in the mean cell lysate level of p21 gene when compared to control group but higher than other studied groups (G1,G2&G3) . A highly significant increase in the mean serum level of Bcl-2 was found in different studied groups(G1,G2&G3) especially in(G3) where P values in these groups (G1,G2,G3) when compared to control group were (P < 0.0001). (G4) showed higher Bcl-2 serum level when compared to control group, this difference was insignificant but this level is lower than other studied groups (G1,G2&G3) .Conclusion:The results in the present study indicate that both P21 and Bcl-2 can be used as biological markers in the diagnosis of bladder cancer . Curcumin have the ability to overcome the decrease in p21WAF1/CIP1 protein and the increase of Bcl-2 protein and reduce the induction of carcinogenic effect . %K Bladder cancer %K Bladder inflammation %K P21 %K Bcl-2 and Curcumin %U http://egyptianjournal.net78.net/49_20.pdf