DEPRESSIVE EFFECT OF T-2 TOXIN ON HEPATOCYTE PROLIFERATION UNDER TWO EXPERIMENTAL CONDITIONS
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The effect of T-2 mycotoxin on hepatocyte proliferation was investigated in mice using two models of hepatocyte regeneration, i.e. 2/3 partial hepatectomy (Ph) and CCl4-intoxication (CCl4). At 2 days after Ph or CCl4, mice were given T-2 toxin (2 or 4mg/kg, po). Five mice each were killed daily up to 7days after Ph or CCl4, and they were injected with BrdU (100mg/kg, ip) at I hour before sacrifice. T-2 toxin significantly delayed the recovery of liver weight loss after Ph Or CCl4, and it also significantly delayed the reduction in size of centrilobular hepatocyte necrosis after CCl4. In addition, T-2 toxin significantly depressed BrdU-uptake by hepatocytes in the early days after Ph or CCl4. It can be said that T-2 toxin depressed the proliferation of hepatocytes, resulting in the delay of recovery of liver weight loss. This seems to be related to the inhibitory effect of T-2 toxin on nuclear acid synthesis of hepatocytes.
- 日本毒性病理学会の論文
日本毒性病理学会 | 論文
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