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Archives of Toxicology

, Volume 91, Issue 3, pp 1049–1130 | Cite as

Cyanotoxins: producing organisms, occurrence, toxicity, mechanism of action and human health toxicological risk evaluation

  • Franca M. Buratti
  • Maura Manganelli
  • Susanna Vichi
  • Mara Stefanelli
  • Simona Scardala
  • Emanuela TestaiEmail author
  • Enzo Funari
Review Article

Abstract

Cyanobacteria were present on the earth 3.5 billion years ago; since then they have colonized almost all terrestrial and aquatic ecosystems. They produce a high number of bioactive molecules, among which some are cyanotoxins. Cyanobacterial growth at high densities, forming blooms, is increasing in extension and frequency, following anthropogenic activities and climate changes, giving rise to some concern for human health and animal life exposed to cyanotoxins. Numerous cases of lethal poisonings have been associated with cyanotoxins ingestion in wild animal and livestock. In humans few episodes of lethal or severe human poisonings have been recorded after acute or short-term exposure, but the repeated/chronic exposure to low cyanotoxin levels remains a critical issue. The properties of the most frequently detected cyanotoxins (namely, microcystins, nodularins, cylindrospermopsin and neurotoxins) are here critically reviewed, describing for each toxin the available information on producing organisms, biosynthesis/genetic and occurrence, with a focus on the toxicological profile (including kinetics, acute systemic toxicity, mechanism and mode of action, local effects, repeated toxicity, genotoxicity, carcinogenicity, reproductive toxicity; human health effects and epidemiological studies; animal poisoning) with the derivation of health-based values and considerations on the risks for human health.

Keywords

Cyanobacteria Cyanotoxins Toxicological risk assessment Mechanism of action 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2017

Authors and Affiliations

  • Franca M. Buratti
    • 1
  • Maura Manganelli
    • 1
  • Susanna Vichi
    • 1
  • Mara Stefanelli
    • 2
  • Simona Scardala
    • 1
  • Emanuela Testai
    • 1
    Email author
  • Enzo Funari
    • 1
  1. 1.Environment and Health DepartmentIstituto Superiore di SanitàRomeItaly
  2. 2.Research Certification and Control DivisionINAILRomeItaly

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