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Okadaic acid, C 44 H 68 O 13, is a toxin produced by several species of dinoflagellates, and is known to accumulate in both marine sponges and shellfish. [1] One of the primary causes of diarrhetic shellfish poisoning, okadaic acid is a potent inhibitor of specific protein phosphatases and is known to have a variety of negative effects on cells.
Amnesic shellfish poisoning (ASP) is an illness caused by consumption of shellfish that contain the marine biotoxin called domoic acid. [1] In mammals , including humans, domoic acid acts as a neurotoxin , causing permanent short-term memory loss , brain damage , and death in severe cases.
Venom may also cause hypotension. [33] In some species such as the Komodo dragon and the desert monitor, venom also induces a powerful neurotoxic effect. In the latter species for instance, envenomation causes immediate paralysis in rodents (but not birds) and lesser effects of the same nature in humans. [34]
The Komodo dragon is also sometimes known as the Komodo monitor or the Komodo Island monitor in scientific literature, [14] although these names are uncommon. To the natives of Komodo Island , it is referred to as ora , buaya darat ('land crocodile'), or biawak raksasa ('giant monitor').
Liver toxicity, allergic reaction, anaphylaxis [3] Kava: awa, kava-kava [4] Piper methysticum: Potentiates CNS sedatives, [3] chronic use might cause a reversible dry skin condition. [18] Khat: qat Catha edulis: Chronic liver dysfunction [3] [19] Kratom: Mitragyna speciosa: Hepatotoxicity [20] [19] Liquorice root Glycyrrhiza glabra
Toxic encephalopathy is a neurologic disorder caused by exposure to neurotoxic organic solvents such as toluene, following exposure to heavy metals such as manganese, as a side effect of melarsoprol treatment for African trypanosomiasis, adverse effects to prescription drugs, or exposure to extreme concentrations of any natural toxin such as cyanotoxins found in shellfish or freshwater ...
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Hallmark symptoms of ciguatera in humans include gastrointestinal, cardiovascular, and neurological effects. [5] [6] Gastrointestinal symptoms include nausea, vomiting, and diarrhea, usually followed by neurological symptoms such as headaches, muscle aches, paresthesia, numbness of extremities, mouth and lips, reversal of hot and cold sensation, [7] [8] ataxia, vertigo, and hallucinations.