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Influence of microcystin-YR and nodularin on the activity of some proteolytic enzymes in mouse liver

机译:微囊藻毒素-YR和结节霉素对小鼠肝脏某些蛋白水解酶活性的影响

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摘要

The activity of cathepsins D and L, arginine aminopeptidase, dipeptidase II and dipeptidase IV was determined in the lysosomal, microsomal, cytoplasmatic fractions and in the complete homogenate of the mouse hepatocytes following injection of microcystin-YR and nodularin. The effect of both toxins depended on the time of action and on the fraction of cell cytoplasm. Microcystin-YR inhibited the synthesis of the studied proteases and caused a labialization of lysosomal membranes, whereas nodularin induced the synthesis of the enzymes and destabilised the reticulum endoplasmatic membranes. (C) 2000 Elsevier Science Ltd. All rights reserved. [References: 20]
机译:在注射微囊藻毒素-YR和结节霉素后,在小鼠肝细胞的溶酶体,微粒体,细胞质级分和完全匀浆中测定了组织蛋白酶D和L,精氨酸氨基肽酶,二肽酶II和二肽酶IV的活性。两种毒素的作用取决于作用时间和细胞质比例。微囊藻毒素-YR抑制了所研究蛋白酶的合成,并导致溶酶体膜的唇裂化,而结节霉素则诱导了酶的合成,并使网状内质膜不稳定。 (C)2000 Elsevier ScienceLtd。保留所有权利。 [参考:20]

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