Pakistan Journal of Biological Sciences1028-88801812-5735Asian Network for Scientific Information10.3923/pjbs.2000.1705.1707Bufo tibamicus]]>SakrS. A. HijjiA.M. 102000310The present work studied the effect of the organophosphate insecticide, sumithion on the liver of toads Bufo tibamicus. Feeding toads with a daily dose of sumithion (40 mg/kg body weight) for 10 days caused histological alterations in the liver. The normal structural organization of the hepatic acini was impaired, the hepatocytes showed cytoplasmic vacuolation and the blood vessels were congested. Moreover, elevations of transaminases (GOT, GPT) were recorded in the sera of treated animals. The obtained results collectively indicated that sumithion treatment induced liver injury in the toads.]]>Ahmed, N.A., K.S. Abou El-Ala, S.M. Rawi and M.H. El-Behary,1992Rattus norvegicus).]]>7121130Cohen, M.S.,198260701706Datta, K.K. and T.S. Dikishith,19738363363Enan, E.E.,1983254246Hurket, P.C.,1978Oryctolagus cuniculus during subchronic administration of dieldrin.]]>16716719Martin, D.W., P.A. Mayes and V.W. Rodwell,1983Mikhail, T.H., N. Aggour, R. Awadallah, M.N. Boulos, E.A. El-Dessoukey and A.I. Karima,197918258268Sakr, S.A.,199912731Sakr, S.A. and A.E. Abo-Shafey,1989Bufo regularis intoxicated with the insecticide dimethoate.]]>37990Sakr, S.A. and S.A. Gabr,19927319329Sakr, S.A. and Z.Y. Al-Sahhaf,1996Bufo tibamicus intoxicated with the insecticide, lannate.]]>195367Saleh, A.T.,19996179187Dikshith, T.S.S., S.K. Tandon, K.K. Datta, P.K. Gupta and J.R. Behari,19781719Al-Sahhaf, Z.Y. and S.A. Sakr,1995Bufo tibamicus to the effect of the insecticide, lannate. ]]>7265274Asztalos, B., J. Nemcsok, I. Benedeczky, R. Gabriel, A. Szabo and O.J. Refaie,1990Cyprinus carpio L.).]]>19275282El-Banhawy, M.A.,19741974pp: 113123