Abstract
Mice were killed 2, 4, 6, 12, 24, 48 and 96 hours after intragastrical administration of 0, 5, 10, 20, or 40 mg/kg body weight of 3-acetyldeoxynivalenol. The animals became clinically ill after 12 hours and some animals in the highest dose group died. Histological examination of duodenal crypts, thymus and spleen revealed, in all dose groups, presence of the characteristic lesions that are known to be produced by trichothecenes, but the intensity of lesions in the 40 mg group corresponded to lesions known to be caused by 4 mg/kg of T-2 toxin. A rabbit skin bioassay with 3-acetyldeoxynivalenol gave negative results on one occasion and a mild reaction to 100 to 500 micrograms/mL on another. It is concluded that 3-acetyldeoxynivalenol is considerably less toxic than T-2 toxin, but causes acute effects in the dividing cells of the body in a manner characteristic of trichothecenes.
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