Toxicopathology Induced by Microcystins and Nodularin: A Histopathological Review
2015
Svirčev, Zorica | Lujić, Jelena | Marinović, Zoran | Drobac, Damjana | Tokodi, Nada | Stojiljković, Bratislav | Meriluoto, Jussi
Cyanobacteria are present in all aquatic ecosystems throughout the world. They are able to produce toxic secondary metabolites, and microcystins are those most frequently found. Research has displayed a negative influence of microcystins and closely related nodularin on fish, and various histopathological alterations have been observed in many organs of the exposed fish. The aim of this article is to summarize the present knowledge of the impact of microcystins and nodularin on the histology of fish. The observed negative effects of cyanotoxins indicate that cyanobacteria and their toxins are a relevant medical (due to irritation, acute poisoning, tumor promotion, and carcinogenesis), ecotoxicological, and economic problem that may affect both fish and fish consumers including humans.
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