Effect of L-carnitine against acute mitoxantrone toxicity in mice |
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Authors: | Mohamed Niang Pavel Tomšík Milan Mělka Alena Stoklasová Jaroslav Cerman Ludìk Šišpera |
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Institution: | (1) Department of Medical Biochemistry, Faculty of Medicine in Hradec Králové, Charles University in Prague, 500 38 Hradec Králové, Czech Republic |
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Abstract: | Various experiments were performed in our laboratory to define a possible role for carnitine derivatives in mitoxantrone (MX)
therapy. We report here the results of the effect of L-carnitine (LCAR) on the lethal toxicity of MX in mice. MX was administered
intravenously at doses of 7, 9, 11, 13, 15 or 17 mg kg−1 either alone or in combination with LCAR at a single intravenous dose of 200 mg kg−1. The dependence of the probability of death on various doses was evaluated for the MX-LCAR combination compared to MX alone.
From these experiments, the following lethal dose fifty (LD50) values were calculated: LD50 for MX alone was 15.2 mg kg−1, whereas in combination with LCAR it increases to 21.8 mg kg−1. The relative toxicity given as the ratio of the LD50 of both MX alone and the combination of MX-LCAR was 69.7%. The results
of our experiments unequivocally show the effect of LCAR on acute toxic doses of MX. |
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Keywords: | Mitoxantrone L-carnitine Acute toxicity Median lethal doses (LD50) |
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