shellfish poisoning

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shellfish poisoning

 
an acute intoxication caused by ingestion of bivalve mollusks contaminated with the neurotoxin (saxitoxin) secreted by certain dinoflagellates, protozoa that are an important component of marine plankton. One form, paralytic shellfish poisoning, is caused by species of Gonyaulax, and is characterized by paresthesias of the mouth, lips, face, and limbs, nausea, vomiting, and diarrhea; in rare severe cases muscle weakness or paralysis and respiratory embarrassment and death may occur. A self-limited milder form, neurotoxic shellfish poisoning, not associated with paralysis, is caused by species of Gymnodinium.

shellfish poisoning

Etymology: AS, scell + fisc
a toxic neurologic condition that results from eating clams, oysters, or mussels that have ingested the toxin-producing protozoa commonly called the red tide. The characteristic symptoms appear within a few minutes and include nausea, lightheadedness, vomiting, and tingling or numbness around the mouth, followed by paralysis of the extremities and, possibly, respiratory paralysis. Saxitoxin, the causative agent, is not destroyed by cooking. However, the severity of the illness is diminished if the water used in cooking is not consumed. See also Gonyaulax catenella, venerupin poisoning.

shellfish poisoning

Poisoning caused by eating shellfish that have fed on plankton during a red tide. There are several recognized syndromes that may result, including amnesic shellfish poisoning, diarrheal shellfish poisoning, and paralytic shellfish poisoning.
See also: poisoning
References in periodicals archive ?
It should be noted that the levels of paralytic shellfish toxins detected have risen significantly to concerning levels.
Kinetics of accumulation and transformation of paralytic shellfish toxins in the blue mussel Mytilus galloprovincialis.
SALEM - Oregon officials are extending limits on recreational mussel gathering after they detected elevated levels of paralytic shellfish toxins.
However, there are reports [1] indicating that there are other marine dinoflagellates that contribute to the occurrence of paralytic shellfish toxins.
Food and Drug Administration for paralytic shellfish toxins in shellfish is [greater than or equal to] 80 [micro]g saxitoxins/100 g of meat.
The company's services include testing for shellfish toxins, general foodborne pathogens, including E.
A new study published in Nature magazine reveals the molecular basis for resistance and accumulation of paralytic shellfish toxins (PSTs) in softshell clams.
In the past we've told you about a system for detecting shellfish toxins that has been developed by scientists at BioResearch Ireland.
In 1960 CIA agent Marita Lorenz was told to kill Castro with pills containing poison distilled from shellfish toxins.
THE ban on scallop fishing has been lifted in a number of areas off the west coast of Scotland, after tests showed amnesic shellfish toxins had dropped to a safe level.
Spirolides: Unusual symptoms in a regulatory mouse bioassay led to the discovery and structural characterization in 1995 of this new class of "fast-acting" shellfish toxins, using minute quantities accumulated from shellfish tissue and plankton by bioassay-guided fractionation.