Location via proxy:   [ UP ]  
[Report a bug]   [Manage cookies]                
Everand Logo

Welcome to Everand!

  • Discover millions of ebooks, audiobooks, and so much more with a free trial

    From $11.99/month after trial. Cancel anytime.

    Report of the Expert Meeting on Ciguatera Poisoning: Rome, 19-23 November 2018
    Report of the Expert Meeting on Ciguatera Poisoning: Rome, 19-23 November 2018
    Report of the Expert Meeting on Ciguatera Poisoning: Rome, 19-23 November 2018
    Ebook277 pages2 hours

    Report of the Expert Meeting on Ciguatera Poisoning: Rome, 19-23 November 2018

    By Food and Agriculture Organization of the United Nations

    ()

    Read preview

    About this ebook

    Phytoplankton blooms, micro-algal blooms, toxic algae, red tides, or harmful algae, are all terms for naturally occurring phenomena that have occurred throughout recorded history. About 300 hundred species of micro algae are reported at times to form mass occurrence, so called blooms. Nearly one fourth of these species are known to produce toxins. Even non-toxic algal blooms can have devastating impacts when they lead to kills of fish and invertebrates by generating anoxic conditions. Some algal species, although non-toxic to humans, can produce exudates that can cause damage to the delicate gill tissues of fish (raphidophytes Chattonella, Heterosigma, and dinoflagellates Karenia, Karlodinium) . Aquatic animals can suffer devastating mortalities, which could lead economical and food losses, and eventually became a food security problem.

    Of greatest concern to humans are algal species that produce potent neurotoxins that can find their way through shellfish and fish to human consumers where they evoke a variety of gastrointestinal and neurological illnesses (paralytic shellfish poisoning (PSP), amnesic shellfish poisoning (ASP), diarrhoeic shellfish poisoning (DSP), neurotoxic shellfish poisoning (NSP), azaspiracid shellfish poisoning (AZP) and ciguatera fish poisoning (CFP)). Worldwide, ciguatoxins are estimated to cause around 50 000 cases of ciguatera fish poisoning annually; neurological effects may last for weeks or even years and one percent of these cases are fatal .

    Climate change and costal water over enrichment create an enabling environment for harmful algal blooms, which seem to have become more frequent, more intense and more widespread in the past decades.

    LanguageEnglish
    PublisherFood and Agriculture Organization of the United Nations
    Release dateSep 22, 2020
    ISBN9789251330913
    Report of the Expert Meeting on Ciguatera Poisoning: Rome, 19-23 November 2018
    Author

    Food and Agriculture Organization of the United Nations

    An intergovernmental organization, the Food and Agriculture Organization of the United Nations (FAO) has 194 Member Nations, two associate members and one member organization, the European Union. Its employees come from various cultural backgrounds and are experts in the multiple fields of activity FAO engages in. FAO’s staff capacity allows it to support improved governance inter alia, generate, develop and adapt existing tools and guidelines and provide targeted governance support as a resource to country and regional level FAO offices. Headquartered in Rome, Italy, FAO is present in over 130 countries.Founded in 1945, the Food and Agriculture Organization (FAO) leads international efforts to defeat hunger. Serving both developed and developing countries, FAO provides a neutral forum where all nations meet as equals to negotiate agreements and debate policy. The Organization publishes authoritative publications on agriculture, fisheries, forestry and nutrition.

    Read more from Food And Agriculture Organization Of The United Nations

    Related to Report of the Expert Meeting on Ciguatera Poisoning

    Related ebooks

    Social Science For You

    View More
    View More

    Related podcast episodes

    Related articles

    • UNLIMITED

      £1.9m Follow-up Study To Look At Human Health Impact

      Aug 4, 2022

      Following the success of the Chichester Harbour Microplastics Symposium, Dr Corina Ciocan is now leading a team of specialists interested in developing quick tests to detect the impact of several chemical pollutants on marine organisms, with applicab

      1 min read

    • UNLIMITED

      A Look At Alternative Food Sources

      May 6, 2022

      “The global population is expected to reach 9,7 billion in 2050. To meet the increasing demand for food, overall food production will need to be raised by about 70% above 2009 levels. New food sources imply those that have not been widely consumed, e

      4 min read

    • UNLIMITED

      Essential Wetlands

      Sep 17, 2021

      Essential Wetlands
      6 min read

    • UNLIMITED

      Marine Gene Rush

      Aug 21, 2019

      Marine Gene Rush
      5 min read

    • UNLIMITED

      Your Voice Is Needed as EPA Updates its Rule on Risk Management of Chemical Facilities

      Mar 18, 2022

      UCS Research Director Jacob Carter calls on all public health experts and those living near at-risk chemical facilities to weigh in on changes the EPA will make to its Risk Management Plan rule. The public comment period is scheduled to begin Septemb

      2 min read

    • UNLIMITED

      THE Grapevine

      Feb 22, 2017

      JO IMMIG Jo is an environmental scientist, photographer and writer. She has worked in the environment movement for decades and is co-ordinator of the National Toxics Network, an organisation dedicated to creating a toxicfree future. She has written m

      3 min read

    • UNLIMITED

      Chemical Drift

      Nov 17, 2023

      Chemical Drift
      6 min read

    • UNLIMITED

      THE Grapevine

      Feb 22, 2017

      JO IMMIG Jo is an environmental scientist, photographer and writer. She has worked in the environment movement for decades and is co-ordinator of the National Toxics Network, an organisation dedicated to creating a toxicfree future. She has written m

      3 min read

    • UNLIMITED

      Opinion: Companies Must Responsibly Manufacture The Antimicrobials Society Needs

      Jan 30, 2020

      Providing access to antibiotics and other antimicrobials while reducing resistance to these medicines presents a dual manufacturing challenge: ensuring a cost-effective supply while minimizing their emission into the environment.

      4 min read

    • UNLIMITED

      Covid-19 News

      Jun 3, 2024

      Covid-19 News
      5 min read

    • UNLIMITED

      Green snippets

      Apr 27, 2023

      Green snippets
      3 min read

    • UNLIMITED

      Rethinking Glyphosate

      Aug 21, 2022

      Rethinking Glyphosate
      6 min read

    • UNLIMITED

      The Cow Loves Robots

      May 9, 2021

      The Cow Loves Robots
      7 min read

    • UNLIMITED

      10 Personal Habits You Can Change Today

      Nov 14, 2022

      One of the healthiest ways of helping the planet is to eat more plants. If you eat more vegetables and fruits, buy smart and don’t waste, you’ll find it easy on the pocket – let alone the medical expenses you’ll save down the line. Eating too much re

      4 min read

    • UNLIMITED

      SA Feed Manufacturers To Prioritise Product Safety

      Sep 21, 2020

      South Africa’s Animal Feed Manufacturers’ Association (AFMA) is to place increased focus on minimising threats posed to manufactured feed by the presence of toxic substances in feed ingredients. The association’s mycotoxins sub-committee has already

      1 min read

    Related categories

    Reviews for Report of the Expert Meeting on Ciguatera Poisoning

    0 ratings

    0 ratings0 reviews

    What did you think?

    Tap to rate

    Review must be at least 10 words

      Book preview

      Report of the Expert Meeting on Ciguatera Poisoning - Food and Agriculture Organization of the United Nations

      Required citation:

      FAO and WHO. 2020. Report of the Expert Meeting on Ciguatera Poisoning. Rome, 19–23 November 2018. Food Safety and Quality No. 9. Rome. https://doi.org/10.4060/ca8817en.

      The designations employed and the presentation of material in this information product do not imply the expression of any opinion whatsoever on the part of the Food and Agriculture Organization of the United Nations (FAO) or World Health Organization (WHO) concerning the legal or development status of any country, territory, city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries. The mention of specific companies or products of manufacturers, whether or not these have been patented, does not imply that these have been endorsed or recommended by FAO or WHO in preference to others of a similar nature that are not mentioned.

      The views expressed in this information product are those of the author(s) and do not necessarily reflect the views or policies of FAO or WHO.

      ISSN 2415-1173 [Print]

      ISSN 2664-5246 [Online]

      ISBN 978-92-5-132518-6 (FAO)

      ISBN 978-92-4-000629-4 [electronic version] (WHO)

      ISBN 978-92-4-000630-0 [print version] (WHO)

      E-ISBN 978-92-5-133091-3 (EPUB)

      © FAO and WHO, 2020

      Some rights reserved. This work is made available under the Creative Commons Attribution-Non Commercial-ShareAlike 3.0 IGO licence (CC BY-NC-SA 3.0 IGO; https://creativecommons.org/licenses/by-nc-sa/3.0/igo/legalcode).

      Under the terms of this licence, this work may be copied, redistributed and adapted for non-commercial purposes, provided that the work is appropriately cited. In any use of this work, there should be no suggestion that FAO or WHO endorses any specific organization, products or services. The use of the FAO or WHO logo is not permitted. If the work is adapted, then it must be licensed under the same or equivalent Creative Commons licence. If a translation of this work is created, it must include the following disclaimer along with the required citation: "This translation was not created by the Food and Agriculture Organization of the United Nations (FAO) or WHO. FAO/WHO are not responsible for the content or accuracy of this translation. The original English edition shall be the authoritative edition.

      Disputes arising under the licence that cannot be settled amicably will be resolved by mediation and arbitration as described in Article 8 of the licence except as otherwise provided herein. The applicable mediation rules will be the mediation rules of the World Intellectual Property Organization http://www.wipo.int/amc/en/mediation/rules and any arbitration will be conducted in accordance with the Arbitration Rules of the United Nations Commission on International Trade Law (UNCITRAL).

      Third-party materials. Users wishing to reuse material from this work that is attributed to a third party, such as tables, figures or images, are responsible for determining whether permission is needed for that reuse and for obtaining permission from the copyright holder. The risk of claims resulting from infringement of any third-party-owned component in the work rests solely with the user.

      Sales, rights and licensing. FAO information products are available on the FAO website (www.fao.org/publications) and can be purchased through publications-sales@fao.org. Requests for commercial use should be submitted via: www.fao.org/contact-us/licence-request. Queries regarding rights and licensing should be submitted to: copyright@fao.org.

      Cover photographs [from left to right]:

      © Institut Louis Malardé, © Marie-Yasmine Dechraoui Bottein

      CONTENTS

      Tables and figures

      Contributors

      Abbreviations and acronyms

      Declarations of interest

      Executive summary

      CHAPTER 1

      INTRODUCTION

      1.1 Background

      1.2 Objectives

      1.3 Meeting approach

      CHAPTER 2

      OCCURRENCE OF CAUSATIVE ORGANISMS AND CTXs

      2.1 Occurrence of Gambierdiscus species

      2.2 Distribution of CP causative organisms

      2.3 Methods for species identification

      2.3.1 Polymerase chain reaction (PCR)

      2.3.2 Fluorescence in situ hybridization (FISH) probes

      2.3.3 Restriction fragment length polymorphism (RFLP) typing

      2.3.4 High-throughput sequencing (HTS) metabarcoding

      2.4 Sampling strategies

      2.5 Gambierdiscus abundance

      2.6 Toxicity of CP causative organisms

      2.6.1 Detection of CTXs in Gambierdiscus and Fukuyoa and in the environment

      2.7 Occurrence of CTXs in seafood

      CHAPTER 3

      CHEMISTRY AND BIOSYNTHETIC PATHWAYS

      3.1 Chemistry

      3.1.1 Structures

      3.1.2 Chemical characteristics

      3.1.3 Biosynthetic pathways

      3.2 Ciguatoxin classification

      CHAPTER 4

      DETECTION METHODOLOGIES FOR CTXs

      4.1 Screening assays for ciguatoxins

      4.1.1 In vitro assays

      4.1.1.1 N2A-MTT assay for ciguatoxins

      4.1.1.2 Receptor binding assay (RBA) for ciguatoxins

      4.1.1.3 Immunological assays

      4.1.2 In vivo assays

      4.2 Structure-based confirmatory methods

      4.3 Concluding remarks

      CHAPTER 5

      HAZARD IDENTIFICATION

      5.1 Absorption, distribution, metabolism and excretion (ADME)

      5.1.1 Animal data

      5.2 Toxicological studies

      5.2.1 Acute toxicity

      5.2.2 Short-term studies

      5.2.3 Medium-term studies

      5.2.4 Long-term studies

      5.2.5 Repeated versus acute toxicity

      5.2.6 Conclusion from toxicological studies in rodents

      5.3 Mode of action

      CHAPTER 6

      HUMAN DATA

      6.1 ADME

      6.2 Clinical features and toxicity

      6.2.1 Acute symptoms

      6.2.2 Chronic symptoms

      6.2.3 Acute recurrence/exacerbation of ciguatera symptoms

      6.2.4 Lethality

      6.3 Epidemiology

      6.4 Treatments

      CHAPTER 7

      EXPOSURE ASSESSMENT

      7.1 Introduction

      7.2 Detection frequency of CTXs and levels of contamination

      7.3 Consumption

      7.3.1 Mean estimates of fish consumption

      7.3.2 High percentile estimates of fish consumption

      7.4 Ciguatoxin doses causing Ciguatera poisoning

      7.5 Dietary exposure to ciguatoxins

      CHAPTER 8

      CONCLUSIONS

      8.1 Risk management considerations

      REFERENCES

      ANNEX

      CP FLOW DIAGRAM, AND RESEARCH PROJECTS

      Research projects

      Ciguatools

      Eurocigua

      AlertoxNet

      TABLES

      1. Biological activity reported in Gambierdiscus and Fukuyoa species

      2. Relative ciguatoxin-like toxicities of Gambierdiscus and Fukuyoa species reported to date

      3. Minimum fish weight to require CTX analysis in the Canary Islands, Spain

      4. Fish and marine invertebrates reported to bioaccumulate CTXs and their locations

      5. Classification of CTXs and abbreviation synonyms

      6. Gambierdiscus metabolites other than CTXs

      7. Available screening assays and confirmation methods

      8. Acute toxicity and relative potency of CTXs

      9. Common chronic symptoms of ciguatera poisoning.

      10. Factors contributing to the recurrence or exacerbation of symptoms

      11. Ciguatera as a global health problem

      12. Highest incidence rates per 10 000 population in selected locations

      13. Poisoning cases with causative fish and toxins

      14. Summary of studies on the ciguatoxin content of marine fish

      15. Scenario-based estimation of acute dietary CTX exposure

      16. Marine species in specific regions that are known to exhibit high site fidelity

      FIGURES

      1. Gambierdiscus: G. belizeanus (A), G. australes (B), G. caribaeus (C)

      2. Gambierdiscus and Fukuyoa occurrence in the Caribbean and adjacent seas

      3. Gambierdiscus and Fukuyoa occurrence in Macaronesia, Europe and the Near East

      4. Gambierdiscus and Fukuyoa occurrence in the Pacific Ocean, N=162

      5. Global Gambierdiscus and Fukuyoa occurrence from published records, 2009-2018

      6. Mean Gambierdiscus abundances from 46 studies

      7. Ciguatoxin toxin profiles found in the microalga Gambierdiscus polynesiensis, in the herbivorous fish Chlorurus microrhinos (ex. Scarus gibbus) and in the carnivorous fish Gymnothorax javanicus

      8. Ciguatoxin classification

      9. Gambierdiscus metabolites other than CTXs

      10. Example of reported acute symptoms of ciguatera poisoning

      11. Distribution of doses of CTX1B equivalents associated with CP cases in Guadeloupe

      A1. Flow of CP responses and needs

      CONTRIBUTORS

      EXPERTS

      Ann Abraham, Division of Seafood Science and Technology, United States Food and Drug Administration

      Nathalie Arnich, Risk Assessment Department, French Agency for Food, Environmental and Occupational Health and Safety (ANSES), France

      Mireille Chinain, Institut Louis Malardé, Laboratoire de Recherche sur les Biotoxines Marines, French Polynesia

      Peter Cressey, Institute of Environmental Science and Research Limited, New Zealand

      Marie-Yasmine Dechraoui Bottein, Radioecology Laboratory of the IAEA Environment Laboratories, Department of Nuclear Sciences and Applications, International Atomic Energy Agency, Monaco

      Jorge Diogène Fadini, IRTA, Marine and Continental Waters Program, Spain

      Miriam Friedemann, German Federal Institute for Risk Assessment, Department Exposure, Centre for Documentation and Assessment of Poisonings, Germany

      Ana Gago-Martínez, Universidad de Vigo, Department of Analytical and Food Chemistry, Spain

      Clémence Gatti, Institut Louis Malardé, Laboratoire de Recherche sur les Biotoxines Marines, French Polynesia

      Arjen Gerssen, RIKILT Wageningen University and Research, Netherlands

      Matthew O. Gribble, Department of Environmental Health, Department of Epidemiology, Emory University Rollins School of Public Health, United States of America

      Tim Harwood, Cawthron Institute, New Zealand

      Philipp Hess, Ifremer, Atlantic Center, Laboratoire Phycotoxines, France

      James M Hungerford, Applied Technology Center, Pacific Northwest Laboratory, Office of Regulatory Affairs, United States Food and Drug Administration, USA

      Iddya Karunasagar, Department of International Relations, NITTE University, India

      Raphaёle Le Garrec, Univ Brest, LIEN, F-29200 Brest, France

      Naomasa Oshiro, Marine Biotoxin Laboratory, Division of Biomedical Food Research, National Institute of Health Sciences, Japan

      Alison Robertson, Marine Ecotoxicology Laboratory, Department of Marine Sciences, University of South Alabama and Dauphin Island Sea Laboratory, United States of America

      Patricia Tester, Ocean Tester, United States of America

      Martin van den Berg, Institute for Risk Assessment Sciences, Utrecht University, Netherlands

      Jean-Paul Vernoux, Normandy University, UNICAEN, ABTE Research Team, France

      OBSERVERS

      Henrik Enevoldsen, Intergovernmental Oceanographic Commission of UNESCO, IOC Science and Communication Centre on Harmful Algae, Marine Biological Section, University of Copenhagen

      SECRETARIAT

      Verna Carolissen, Codex Secretariat, Joint FAO/WHO Food Standards Programme, Food and Agriculture Organization of the United Nations

      Gracia Brisco, Codex Secretariat, Joint FAO/WHO Food Standards Programme, Food and Agriculture Organization of the United Nations

      Vittorio Fattori, FAO Secretariat, Food Safety and Quality Unit, Agriculture and Consumer Protection Department, Food and Agriculture Organization of the United Nations

      Markus Lipp, FAO Secretariat, Food Safety and Quality Unit, Agriculture and Consumer Protection Department, Food and Agriculture Organization of the United Nations

      Esther Garrido Gamarro, FAO Secretariat, Fisheries and Aquaculture Department, Food and Agriculture Organization of the United Nations

      Angelika Tritscher, WHO Joint Secretary, Department of Food Safety and Zoonoses, World Health Organization

      Lisa Scheuermann, WHO Joint Secretary, Department of Food Safety and Zoonoses, World Health Organization

      Luis M. Botana, Department Pharmacology, Faculty of Veterinary Medicine, Campus Lugo, University of Santiago de Compostela, Spain

      ABBREVIATIONS AND ACRONYMS

      ADME absorption, distribution, metabolism and excretion

      AMPA α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid

      C-CTX Caribbean ciguatoxin

      CBA cell bioassay

      CDC Centers for Disease Control and Prevention

      CP ciguatera poisoning

      CIFOCOss FAO/WHO Chronic Individual Food Consumption database

      CTX ciguatoxin

      EFSA European Food Safety Authority

      ELISA enzyme-linked immunosorbent assay

      FAO Food and Agricultural Organization of the United Nations

      FDA Food and Drug Administration (the United States of America)

      FISH fluorescence in situ hybridization

      GABA gamma amino butyric acid

      GEADE Global Estimate of Acute Dietary Exposure

      HRMS high-resolution mass spectrometry

      HTS high-throughput sequencing

      I-CTX Indian Ocean ciguatoxin

      IAEA International Atomic Energy Agency

      ICR Institute of Cancer Research

      IESTI, International Estimate of Short-term Intake

      InsP3 inositol triphosphate

      ip intraperitoneal

      iv intravenous

      JECFA Joint FAO/WHO Expert Committee on Food Additives

      LC-MS liquid chromatography coupled with mass spectrometry

      LD lethal dose

      LOAEL lowest observed adverse effect level

      LOD limit of detection

      LOQ limit of quantitation

      MBA mouse bioassay

      MTT 3-[4,5-dimethylthiazole-2-yl]-2,5 diphenyltetrazolium bromide

      MTX maitotoxin

      MU mouse unit

      N2A (N2a) mouse neuroblastoma assay

      NMDA N-methyl-D-aspartic acid

      NOAA National Oceanic and Atmospheric Administration

      NOAEL non-observable adverse effect level

      P-CTX Ciguatoxins (CTX) initially isolated from biota from the pacific region

      PbTx brevetoxin

      PCR polymerase chain reaction

      PICTs Pacific island countries and territories

      PKS polyketide synthase

      PSS Poison Severity Score

      qPCR quantitative polymerase chain reaction

      RASFF Rapid Alert System for Food and Feed

      RBA receptor binding assay

      RFLP restriction fragment length polymorphism

      SEM scanning electronic microscopy

      SP substance P

      SPATT solid phase adsorption toxin tracking

      STX saxitoxin

      TEF toxicity equivalency factor

      TRPA1 transient receptor potential ankyrin 1

      TTX tetrodotoxin

      UHPLC ultra-high-pressure liquid chromatography

      Vd volume of distribution

      VGSC voltage-gated sodium channel

      VGPC Voltage-gated potassium channel

      WHO World Health Organization

      DECLARATIONS OF INTEREST

      All participants in the Joint FAO/WHO Expert Meeting on Ciguatera Poisoning completed a declaration of interest form in advance of the meeting. In relation to the subject of this Expert Meeting, the following declarations were made: (i) Ann Abraham, James M. Hungerford and Clémence Mahana declared having paid employment; (ii) Mireille Chinain, Ana Gago-Martínez, David Timothy Harwood, Philipp Hess, Iddya Karunasagar and Clémence Mahana declared having received or anticipating research support; (iii) Marie-Yasmine Dechraoui Bottein, Jorge Diogene, Ana Gago-Martinez, David Timothy Harwood and Clémence Mahana reported participating in an expert committee or scientific advisory group; (iv) Peter Cressey and Jorge Diogene have provided expert opinion or testimony as part of a regulatory, legislative, judicial, or other governmental process; and (v) David Timothy Harwood indicated knowledge of a technology that could be impacted by the outcome of the meeting.

      Following the FAO Guidance Document for Declaration of Interests, the declarations noted above were assessed as to the extent to which each interest could be reasonably expected to affect and exercise influence on the experts’ judgement. The declared interests of Ann Abraham, Mireille Chinain, Peter Cressey, Marie-Yasmine Dechraoui Bottein, Jorge Diogene, Ana Gago, David Timothy Harwood, Philipp Hess, James M. Hungerford, Iddya Karunasagar and Clémence Mahana were considered unlikely to impair their objectivity or have a significant influence on the impartiality, neutrality and integrity of the work. Meeting participation by these individuals was neither reasonably expected to create unfair competitive advantages, nor were the meeting outcomes reasonably foreseen to affect the individuals’ declared interests. Neither FAO nor WHO received any public comments in response to the online posting of the names and brief biographies of the individuals considered for participation in the Expert Meeting. The interests of all participants were disclosed to all attendees at the beginning of the Expert Meeting.

      EXECUTIVE SUMMARY

      Ciguatera poisoning (CP) is reported in historical documents of the sixteenth century. The first report of the organism Gambierdiscus (originally referred to as Goniodoma sp.) dates from October 1948, in Cabo Verde. Today, the term ciguatera identifies poisoning caused by the ingestion of certain reef fish and shellfish from tropical and subtropical regions, especially the South Pacific Ocean, Indian Ocean and the Caribbean Sea. Through the food chain, these fish and shellfish have accumulated certain lipid-soluble toxins (ciguatoxins [CTXs]) that are produced by

      Enjoying the preview?
      Page 1 of 1