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a form of fish poisoning, marked by gastrointestinal and neurologic symptoms due to ingestion of tropical or subtropical marine fish such as the barracuda, grouper, or snapper that have ciguatoxin in their tissues.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.


A marine saponin of unknown structure but with the empiric formula of C35H65NO8; the toxic substance that causes ciguatera.
Farlex Partner Medical Dictionary © Farlex 2012


A potent neurotoxin that is secreted by a dinoflagellate and can accumulate in the flesh of certain marine fish, such as grouper or snapper, causing ciguatera poisoning.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
References in periodicals archive ?
No deep-sea fish (e.g., tuna, dolphin, or wahoo) have been found to carry ciguatoxin.
Strategy for the development of antibodies raised against ciguatoxins. Ninth International Conference on Harmful Algal Blooms, 7-11 Febuary 2000, Tasmania, Australia (in press).
The effect levels are also 1,000 times lower than those we observe for the related toxin ciguatoxin (CTX).
Abbreviations: APC: apical pore complex; BI: Bayesian inference; BS: Bootstrap support; BSA: Bovine serum albumin; BSE: Back scatter electron; CFP: Ciguatera fish poisoning; CTXs: Ciguatoxins; DNA: Deoxyribonucleic acid; LC-MS/MS: Liquid chromatography-mass spectrometry/mass spectrometry; LSU rDNA: Large subunit ribosomal DNA; ML: Maximum likelihood; MTXs: Maitotoxins; PCR: Polymerase chain reaction; Po: outer pore plate; PP: Posterior probability; SE: Secondary electron; SEM: Scanning electron microscopy; SSU rDNA: Small subunit ribosomal DNA
Detection of ciguatoxin in the meal remnants is strongly suggestive of CFP but is not required for case confirmation.
(2) Gambiertoxins are produced by dinoflagellates of the genus Gambierdiscus and are converted into ciguatoxins during trophic transfer in herbivorous and, later, carnivorous fish.
Ciguatoxin bioaccumulates up the food chain as herbivorous fish eat the algae and are themselves eaten by carnivorous fish.
Simplified solid-phase membrane immunobead assay (MIA) with monoclonal anti-ciguatoxin antibody (MAb-CTX) for detection of ciguatoxin and related polyether toxins.
Sint Maarten and other northeast Caribbean islands have discovered high levels of ciguatoxin, in their lionfish populations.
The chemical structure of YTX is closely related to other ladder-shaped polyethers like ciguatoxin (CTXs), maitotoxin, brevetoxins (PbTXs), and some diarrhetic shellfish toxins (DSTs).
argus never developed because it turned out to be a carrier of ciguatoxin, the agent of ciguatera fish poisoning (Dierking and Campora, 2009).