Search results for "Fish poison"
showing 4 items of 4 documents
Forty-five years later: The shifting dynamic of traditional ecological knowledge on Pantelleria Island, Italy
2016
In 1969, Galt and Galt conducted an ethnobotanical survey in the community of Khamma on the volcanic island of Pantelleria, Italy. Since then, a number of botanical studies concerning the local wild flora and cultivation of the zibibbo grape and capers have been conducted, but none have investigated traditional ecological knowledge (TEK) regarding the use of wild plants and fungi. We documented the current TEK and practices concerning wild plants and fungi on the island, focusing on uses related to food and medicine with 42 in-depth interviews in six communities in June 2014. Our aim was to examine shifts in TEK, represented in terms of loss or gain of specific species uses, in comparison t…
Effects of a phycotoxin, okadaic acid, on oyster heart cell survival
2008
Okadaic acid (OA) is a dinoflagellate toxin which accumulates in shellfish producing diarrhetic shellfish poisoning (DSP) in humans. It was found that OA is a highly selective inhibitor of protein phosphatase types 1 (PP1) and 2A (PP2A) which produces a marked increase in phosphorylation of several proteins, including p38 mitogen-activated protein (MAP) kinase. The cytotoxicity attributed to OA and the effects on p38 MAP kinase and calcium current were examined in the oyster Crassostrea gigas in this study. Data showed that p38 MAP kinase is strongly expressed in oyster heart and that OA bioaccumulated in cultured heart cells. Hence the effects of OA was tested in vitro and in vivo on oyste…
Development of a pressurised liquid extraction and liquid chromatography with electrospray ionization-tandem mass spectrometry method for the determi…
2006
Amnesic shellfish poisoning (ASP) is a potentially lethal human toxic syndrome which is caused by domoic acid (DA) that originates in marine phytoplankton belonging to the Pseudonitzschia genus. A confirmatory and sensitive procedure has been developed and validated for the determination of DA in shellfish. The proposed method includes pressurised liquid extraction (PLE) with methanol/acetone (9:1), florisil ® cleanup purification inside the PLE extraction cell and detection by liquid chromatography (LC) coupled to electrospray ionization in positive mode tandem mass spectrometry (ESI-MS–MS). Comparison of ionization sources (ESI, atmospheric pressure ionization (APCI) atmospheric pressure …