Marine Algal Toxins and Public Health: Insights from Shellfish and Fish, the Main Biological Vectors.

Mar Drugs

Key Laboratory of Aquatic Eutrophication and Control of Harmful Algal Blooms of Guangdong Higher Education Institute, College of Life Science and Technology, Jinan University, Guangzhou 510632, China.

Published: November 2024

AI Article Synopsis

  • Harmful algal blooms (HABs) produce toxins that can cause serious illnesses in humans, including five main types of shellfish poisoning: DSP, PSP, ASP, NSP, and CP.
  • These toxins primarily enter the human body through the consumption of contaminated fish and shellfish, and the prevalence of such toxin-related diseases is increasing globally.
  • The paper reviews the toxic effects of these HABs on aquatic life and humans, aiming to better understand the mechanisms behind these toxins to reduce the health risks they pose.

Article Abstract

Exposure to toxigenic harmful algal blooms (HABs) can result in widely recognized acute poisoning in humans. The five most commonly recognized HAB-related illnesses are diarrhetic shellfish poisoning (DSP), paralytic shellfish poisoning (PSP), amnesic shellfish poisoning (ASP), neurotoxic shellfish poisoning (NSP), and ciguatera poisoning (CP). Despite being caused by exposure to various toxins or toxin analogs, these clinical syndromes share numerous similarities. Humans are exposed to these toxins mainly through the consumption of fish and shellfish, which serve as the main biological vectors. However, the risk of human diseases linked to toxigenic HABs is on the rise, corresponding to a dramatic increase in the occurrence, frequency, and intensity of toxigenic HABs in coastal regions worldwide. Although a growing body of studies have focused on the toxicological assessment of HAB-related species and their toxins on aquatic organisms, the organization of this information is lacking. Consequently, a comprehensive review of the adverse effects of HAB-associated species and their toxins on those organisms could deepen our understanding of the mechanisms behind their toxic effects, which is crucial to minimizing the risks of toxigenic HABs to human and public health. To this end, this paper summarizes the effects of the five most common HAB toxins on fish, shellfish, and humans and discusses the possible mechanisms.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11595774PMC
http://dx.doi.org/10.3390/md22110510DOI Listing

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