ciguatera


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ciguatera

 [se″gwah-ta´rah]
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.

ci·gua·te·ra

(sē'gwă-tār'ă),
An acute toxic syndrome with predominantly gastrointestinal and neuromuscular features induced by ingestion of the flesh or viscera of various marine fish of the Caribbean and tropic Pacific reefs that contain ciguatoxin. The lipid-soluble, heat-stable toxin is produced by the dinoflagellate Gambierdiscus toxicus, which is epiphytic on red and brown algae. Herbivorous fish foraging on reef algae consume the flagellates and are in turn consumed by carnivorous fish, the toxin becoming increasingly concentrated as it passes up the food chain. Some 400 species of fish have been associated with human intoxication. Symptoms come on 3-12 hours after exposure and include vomiting and diarrhea, myalgia, dysesthesia and paraesthesia of the extremities and perioral region, pruritus, headache, weakness, and diaphoresis. Toxic effects usually resolve spontaneously in about 1 week.
[Sp. fr. cigua, sea snail]

ciguatera

/ci·gua·te·ra/ (se″gwah-ta´rah) a form of ichthyosarcotoxism, marked by gastrointestinal and neurologic symptoms due to ingestion of tropical or subtropical marine fish that have ciguatoxin in their tissues.

ciguatera

(sē′gwə-tĕr′ə)
n.
Poisoning caused by ingesting fish contaminated with ciguatoxin, characterized by gastrointestinal and neurological symptoms. Also called ciguatera fish poisoning, ciguatera poisoning.

ciguatera

[se′gwäta′rəh]
a form of fish poisoning, marked by GI and neurological symptoms, caused by ingestion of tropical or subtropical marine fish, such as the barracuda, grouper, or snapper that have accumulated ciguatoxin in their tissues. Ciguatoxin is heat resistant and is not detoxified by cooking. This form of poisoning is often misdiagnosed as multiple sclerosis.

ciguatera

poisoning by consumption of the flesh or viscera of sporadically toxic tropical predatory fish of a wide range of species. The causative heat-stable toxins (ciguatoxin, maitotoxin and others) originate in the dinoflagellate (Gambierdiscus toxicus) and possibly others or from associated bacterial microflora. The toxins are subject to bioaccumulation in fish which eat the dinoflagellates, and subsequently in the predators. Growth of the dinoflagellates is promoted by the destruction of their coral reef habitat. Poisoning characterized by vomiting, diarrhea and paresis in cats, dogs, humans. See also lyngbya.
References in periodicals archive ?
waters, ciguatera occurs in Hawaii, Guam, southern Florida, Puerto Rico, the U.
There will often be a delay between the initiation of ciguatera flowing through the ecosystem before human poisonings are observed," he says.
1000 to 1450 in eastern Polynesia was likely prompted by ciguatera fish poisoning.
Ciguatera fish poisoning is caused by Gambierdiscus toxicus, the most common marine toxin on our planet.
Ciguatera produces a variety of unpleasant symptoms, including vomiting, diarrhea, numbness, breathing difficulties, and bizarre reverse sensations of heat and cold.
37) One expert postulated the ciguatera toxin would cause prolonged activation of the sodium channels and cause them to be distorted, thereby causing the body to form antibodies against the abnormal sodium channels.
Studies show positive associations between temperature increases and diarrhoea, and between warmer sea-surface temperatures and ciguatera outbreaks.
Caribbean reef fish carry ciguatera, and shellfish from picturesque islands of eastern Canada can pack an algal toxin wallop.
However, unlike ciguatera fish poisoning, paralytic shellfish poisoning, and amnesic shellfish poisoning, no one has been known to die of PCO exposure.
The increasing popularity of snapper, amberjack, and other reef fish in temperate markets is widening the risk of ciguatera poisoning.
Moreover, seafood can contain natural toxins, such as scombroid and ciguatera, that can cause illness and, in some instances, death.
The ailment is ciguatera fish poisoning, which can produce an array of frightening symptoms--the only effective treatment for which must be given in its early stages.