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  • Title: Comparative studies of hepatotoxicity and fumonisin B1 and B2 content of water and chloroform/methanol extracts of Fusarium moniliforme strain MRC 826 culture material.
    Author: Voss KA, Plattner RD, Bacon CW, Norred WP.
    Journal: Mycopathologia; 1990 Nov; 112(2):81-92. PubMed ID: 2293036.
    Abstract:
    Fusarium moniliforme has been associated with several diseases including equine leukoencephalomalacia, human esophageal cancer and hepatotoxicity/hepatocarcinogenicity in laboratory animals. The potential health risks to animals and humans posed by F. moniliforme contaminated grains cannot be assessed until the toxins are identified and toxicologically evaluated. As part of a systematic approach to identifying the hepatotoxins produced by F. moniliforme, diets containing aqueous and chloroform/methanol (1:1) extracts of F. moniliforme strain MRC 826 culture material (CM) and/or the extracted CM residues were fed to male Sprague-Dawley rats for four weeks. Serum alanine aminotransferase, aspartate amino-transferase and alkaline phosphatase activities were increased after two and four weeks and microscopic liver lesions were found in those animals fed aqueous CM extract and the CM residue after chloroform/methanol extraction. Fumonisins B1 and B2 were extracted from the CM by water, but not chloroform/methanol, and were present in the toxic diets at concentrations of 93-139 and 82-147 ppm, respectively. Nontoxic diets contained less than or equal to 22 ppm fumonisin B1 and less than or equal to 65 ppm fumonisin B2.
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