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Accumulation of paralytic shellfish poisoning toxins in bivalves and an ascidian fed on Alexandrium tamarense cells.
Detection of paralytic shellfish poisoning (PSP) toxins in shellfish tissue using MIST Alert, a new rapid test, in parallel with the regulatory AOAC mouse bioassay.
This toxin resistance allows the clams to survive and feed during harmful algal blooms and thereby accumulate the high levels of PSTs that cause paralytic shellfish poisoning in humans.
Most feared is the neurological type, the sometimes fatal paralytic shellfish poisoning (PSP).
"Water samples collected in the area were positive of Pyrodinium bahamense variety compressum, a microorganism that causes paralytic shellfish poisoning," Albaladejo said.
The potent neurotoxin saxitoxin and its analogs, which can cause paralytic shellfish poisoning, are produced by species of the dinoflagellate genus Alexandrium.
Pyrodinium bahamense is the primary organism responsible for paralytic shellfish poisoning (commonly referred to as red tide) in the Philippines.
The culprit is an elevated level of paralytic shellfish poisoning toxin.
Production and transportation costs, supply of spat and periodic paralytic shellfish poisoning (PSP) have all plagued shellfish farmers.
The algae are notorious for producing a toxin that accumulates in clams, mussels, and other shellfish and can cause paralytic shellfish poisoning (PSP) in humans who consume them.
"Paralytic shellfish poisoning (PSP) toxins can cause symptoms ranging from tingling of the tongue, numbness and drowsiness to loss of consciousness and respiratory failure."
Adverse health outcomes in humans range from acute neurotoxic disorders such as paralytic shellfish poisoning, neurotoxic shellfish poisoning, and ciguatera fish poisoning to more chronic diseases such as chronic liver disease caused by microcystins and amnesic shellfish poisoning from domoic acid exposure.