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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/17664

Title: : Effects of L-histidinol on the antitumour activity and acute cardiotoxicity of doxorubicin in mice.
Authors: Al-Shabanah OA
Badary OA
Al-Gharably NM
Issue Date: 1998
Abstract: L-Histidinol (LHL), a structural analogue of the essential amino acid l-histidine, can improve the therapeutic index of antimetabolites and alkylating agents. The objective of the study was to determine whether LHL would modulate the antitumour activity and acute cardiotoxicity of the anthracycline antibiotic, doxorubicin (DOX). LHL (1.0 mM) potentiated the cytotoxicity of DOX (0.05-0.8 microg ml-1) in cultured Ehrlich ascites carcinoma (EAC) cells. LHL (250 mg kg-1, i.p.) administered for five consecutive doses at 2-h intervals starting 2 h before DOX (5 mg kg-1, i.p.) single injection, enhanced the antitumour activity of DOX in EAC-bearing mice as manifested by a significant increase in average life span and cure rate of mice. In normal mice, LHL, in the same dose regimen, could not alter the acute cardiotoxicity and lethality of DOX (10 mg kg-1, i.p.). The present data indicate that LHL may improve the therapeutic efficacy of DOX in EAC-bearing mice without compromising its toxicity. Also, our finding supports the LHL/anticancer drug combination approach.
URI: http://hdl.handle.net/123456789/17664
Appears in Collections:College of Pharmacy

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