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Mem. Inst. Oswaldo Cruz ; 85(1): 79-85, jan.-mar. 1990. tab, ilus
Article in English | LILACS | ID: lil-85172

ABSTRACT

Amorphous material and altered collagen fragments within dilated secretory vesicles and cisternae of fibroblast cytoplasm were the main ultrastructural changes seen in hepatic periovular granulomas formed in mice infected with Schistosoma mansoni and treated with colchicine. Despite promoting ultrastructural changes in the fibroblasts found in hepatic periovular granulomas, colchicine administration to infected mice did not significantly change the light microscopic appearance of the hepatic schistosomal lesions, did not diminish the amount of total hepatic collagen, and did not change the collagen isotypes in the granulomas, as observed after a comparative study with non-colchicine treated infected control mice. When administered to mice two weeks after curative treatment of schistosomiasis with praziquantel, colchicine did not seem to increase extracellular collagen degradation or to induce a more rapid resorption of hepatic periovular granulomas, although still promoting ultrastructura alterations in fibroblasts


Subject(s)
Mice , Female , Male , Colchicine/therapeutic use , Granuloma/drug therapy , Liver Diseases, Parasitic/drug therapy , Schistosomiasis mansoni/drug therapy , Collagen/metabolism , Granuloma/pathology , Liver Diseases, Parasitic/pathology , Liver/ultrastructure , Schistosomiasis mansoni/pathology
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