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Tétrodotoxines et poissons globes

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FRONT. VET. SCI. 17/12/19 Saxitoxin Poisoning in Green Turtles (Chelonia mydas) Linked to Scavenging on Mass Mortality of Caribbean Sharpnose Puffer Fish (Canthigaster rostrata-Tetraodontidae) Introduction The Caribbean sharpnose puffer (Canthigaster rostrata: Tetraodontidae) is a common reef fish found in the western Atlantic.

FRONT. VET. SCI. 17/12/19 Saxitoxin Poisoning in Green Turtles (Chelonia mydas) Linked to Scavenging on Mass Mortality of Caribbean Sharpnose Puffer Fish (Canthigaster rostrata-Tetraodontidae)

They are omnivorous and feed on a variety of benthic invertebrates (1). Large C. rostrata mortality events have been described in Costa Rica and other areas of the Caribbean (2, 3). EGYPTIAN JOURNAL OF AQUATIC RESEARCH - 2006 - BIOLOGY AND TOXICITY OF THE PUFFERFISH LAGOCEPHALUS SCELERATUS (GMELIN, 1789) FROM THE GULF OF SUEZ. BVS_BR - 2010 - ENVENOMATION CAUSED BY THE CONSUMPTION OF PUFFERFISH LIVER. FRANCE 3 02/09/19 Des poissons lapins (toxiques) pêchés au large de la Bretagne: faut-il s'en inquiéter ? Lorsqu'il se sent en danger, ce poisson gonfle une poche ventrale pour se rendre effrayant.

FRANCE 3 02/09/19 Des poissons lapins (toxiques) pêchés au large de la Bretagne: faut-il s'en inquiéter ?

Cette particularité lui vaut d'être parfois communément appelé "poisson ballon" ou encore "poisson à tête de lapin". Une quarantaine de poissons lapins au milieu des sardines Depuis début août, les témoignages de pêcheurs ayant trouvé un Lagocephalus Lagocephalus (nom scientifique) au bout leur ligne se multiplient en Bretagne. Vendredi 30 août à Étel (Morbihan), six jours plus tôt en baie d'Audierne (Finistère), encore plus tôt, c'est sur une plage de Belle-Ile-en-Mer (Morbihan) qu'un pêcheur raconte avoir découvert un poisson inhabituel rejeté sur le rivage.

Il l'a d'ailleurs filmé avant de le remettre à l'eau.Dernièrement, c'est un pêcheur professionnel qui a trouvé une quarantaine de ces Lagocephalus Lagocephalus dans un lot de sardines. Dans toutes les mers du globe "Il s'agit en réalité d'une espèce circum-globale c'est à dire que l'on retrouve dans toutes les mers du globe. Food and Chemical Toxicology Volume 112, February 2018, Rapid screening and multi-toxin profile confirmation of tetrodotoxins and analogues in human body fluids derived from a puffer fish poisoning incident in New Caledonia.

IRTA (CAT) 04/06/18 Présentation : Tetrodotoxin detection in body fluids from a puffer fish poisoning incidence. COMPOUNDCHEM 17/01/18 Infographie : Fugu and tetrodotoxin: how the pufferfish can kill. Click to enlarge Pufferfish are poisonous due to the presence of tetrodotoxin.

COMPOUNDCHEM 17/01/18 Infographie : Fugu and tetrodotoxin: how the pufferfish can kill

Several other aquatic animals also contain this toxin, such as the blue-ringed octopus. In all cases, it’s not produced by the animals themselves, but by symbiotic bacteria. In pufferfish, high levels of tetrodotoxin occur in the liver, skin, and reproductive organs. Before it is eaten these must be skillfully removed. Because of these high stakes, chefs must complete years of rigorous training before they can prepare the fish for eating. Tetrodotoxin kills because it can interfere with our nervous systems. CHEMOSPHERE - 2019 - Tetrodotoxin levels of three pufferfish species (Lagocephalus sp.) caught in the North-Eastern Mediterranean sea. REUTERS 10/12/18 Climate change is creating mutant fugu fish in Japan. Reuters News agency Monday, December 10, 2018, 12:46 PM - The road, hemmed in on one side by empty warehouses and the other by a concrete seawall, ends abruptly in a desolate parking lot.

REUTERS 10/12/18 Climate change is creating mutant fugu fish in Japan

Men step out of their cars and into the darkness, then slip behind the sliding doors of a warehouse. Inside, they huddle under floodlights and wait. A clock on the wall ticks to ten past three in the morning. "Ready? And so begins a surreal auction in this port city in southwestern Japan. (WINTER IS HERE: How will El Niño shape Canada's upcoming winter? 20MINUTES 11/04/18 Alerte! le poisson-lapin et le poisson-ballon menacent la Méditerranée (Siganus luridus et Lagocephalus sceleratus) Déclarées « invasives », les deux espèces poisson-lapin et poisson-ballon sont arrivées depuis la mer Rouge via le canal de Suez.

20MINUTES 11/04/18 Alerte! le poisson-lapin et le poisson-ballon menacent la Méditerranée (Siganus luridus et Lagocephalus sceleratus)

Elles sont traquées dans plusieurs pays du pourtour méditerranéen. AFP 16/01/18 Japon : alerte au fugu, un poisson potentiellement mortel. Une ville japonaise a activé un système d'alerte pour prévenir ses habitants de ne pas manger de fugu, après que les parties toxiques de ce poisson-globe ont été mises en vente par erreur dans un supermarché local.

AFP 16/01/18 Japon : alerte au fugu, un poisson potentiellement mortel

Un magasin situé à Gamagori, au centre du Japon, a vendu cinq fugu sans en avoir extrait le foie, partie qui peut contenir de la tétrodotoxine, un poison violent contre lequel il n'existe aucun antidote. Mar. Drugs 2018, 16(1), 17; Difference in Uptake of Tetrodotoxin and Saxitoxins into Liver Tissue Slices among Pufferfish, Boxfish and Porcupinefish. Although pufferfish of the family Tetraodontidae contain high levels of tetrodotoxin (TTX) mainly in the liver, some species of pufferfish, boxfish of the family Ostraciidae, and porcupinefish of the family Diodontidae do not.

Mar. Drugs 2018, 16(1), 17; Difference in Uptake of Tetrodotoxin and Saxitoxins into Liver Tissue Slices among Pufferfish, Boxfish and Porcupinefish

To clarify the mechanisms, uptake of TTX and saxitoxins (STXs) into liver tissue slices of pufferfish, boxfish and porcupinefish was examined. Liver tissue slices of the pufferfish (toxic species Takifugu rubripes and non-toxic species Lagocephalus spadiceus, L. cheesemanii and Sphoeroides pachygaster) incubated with 50 µM TTX accumulated TTX (0.99–1.55 µg TTX/mg protein) after 8 h, regardless of the toxicity of the species. NISCAIR_RES_IN - JANV 2018 - Seasonal variation in toxicity of puffer fish, Arothron immaculatus, Chelonodon patoca and Lagocephalus scleratus along Tamil Nadu coast. Afr. J. Pharm. Pharmacol. 21/03/13 Assessment of toxicity in puffer fish (Lagocephalus lunaris) from South Indian coast. Journal of Applied Pharmaceutical Science Vol. 7 (03), pp.188-193, March, 2017 Seasonal Toxicity Assessment of Oblong Blowfish (Takifugu oblongus) from Tamil Nadu Coast, India. EN_WIKIPEDIA - Lagocephalus sceleratus. The Lagocephalus sceleratus (Gmelin, 1789), known as the silver-cheeked toadfish, is an extremely poisonous marine bony fish in the family Tetraodontidae (puffer fishes).

EN_WIKIPEDIA - Lagocephalus sceleratus.

Habitat and distribution[edit] The species is common in the tropical waters of the Indian and Pacific oceans. It is a recent Lessepsian migrant into the eastern Mediterranean Sea, which it reached through the Suez Canal. WIKIPEDIA - Lagocephalus sceleratus. Un article de Wikipédia, l'encyclopédie libre.

WIKIPEDIA - Lagocephalus sceleratus.

RESEARCH JOURNAL OF TOXINS - 2016 - Genotoxicity of Tetrodotoxin Extracted from Different Organs of Diodon hystrix Puffer Fish from South East Indian Coast. BULL SOC PATHOL EXOT - 2014 - Family tetrodotoxin poisoning in Reunion Island (Southwest Indian Ocean) following the consumption of Lagocephalussceleratus (Pufferfish) BioInvasions Records (2016) New records of the silver-cheeked toadfish Lagocephalus sceleratus (Gmelin, 1789) in the Tyrrhenian and Ionian Seas: early detection and participatory monitoring in practice. UICN 07/08/15 L’initiative MedMIS de l’UICN a permis d’identifier des poissons-globe dans l’Adriatique. Une nouvelle observation d’individus de Lagocephalus sceleratus, connus aussi sous le nom de poisson-globe, espèce envahissante et hautement toxique pour l’homme, a pu être réalisée grâce au plan global MedMIS pour la lutte contre les espèces envahissante s introduites dans les Aires Marines Protégées (AMP) en Méditerranée.

UICN 07/08/15 L’initiative MedMIS de l’UICN a permis d’identifier des poissons-globe dans l’Adriatique

Cette initiative a été développée par l’Union Internationale pour la Conservation de la Nature (UICN). L’aire marine protégée de Karaburun – île de Sazani en Albanie, a été le dernier lieu où l’ont a observé cette espèce. Ceci est une information importante enregistrée par le programme MedMIS, car c’est la première fois que cette espèce a pu ètre observée arrivant dans l’Adriatique par le biais de la Méditerranée,. Jusqu’à maintenant, le poisson-globe n’a été vu que 10 fois dans les AMP méditerranéennes, il a surtout été observé en Turquie où il a été aperçu dans 8 AMP différentes.

De plus, ce poisson peut se montrer agressif dans son environnement. INVAZIVNE VRSTE 16/05/15 New records of the Puffer Fish (Lagocephalus sceleratus) in the Adriatic Sea. The Puffer Fish (Lagocephalus sceleratus). Source: Wikipedia This week, the Puffer Fish (Lagocephalus sceleratus) was caught in the Croatian part of the Adriatic Sea for the fifth time since 2012. Specimens were caught in Dubrovnik-Neretva County and Šibenik-Knin County. Fish poisoning by consumption of the Puffer Fish is extremely serious because it contains Tetradoxin poison (TTX), one of the strongest marine poisons known today.

This toxin affects the nervous system and causes paralysis of the diaphragm and there is no antitoxin available. CAUTION: Do not eat the Puffer Fish! It is also advised not to touch this fish without safety gloves. Although its toxicity is well known, it is still used in the preparation of the traditional Fugu dish in China, India and Taiwan. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY - 1998 - Production of tetrodotoxin in puffer fish embryos. Toxins 2011, 3, 1249-1262 Toxic Marine Puffer Fish in Thailand Seas and Tetrodotoxin They Contained. Toxins 2013, 5(1), 193-202 Removal of Toxin (Tetrodotoxin) from Puffer Ovary by Traditional Fermentation.

TOXINS - 2015 - Tetrodotoxin and Its Analogues in the Pufferfish Arothron hispidus and A. nigropunctatus from the Solomon Islands: A Comparison of Their Toxin Profiles with the Same Species from Okinawa, Japan. Sains Malaysiana 43(7)(2014): 1003–1011 Distribution of Tetrodotoxin among Tissues of Pufferfish from Sabah and Sarawak Waters. PARLEMENT EUROPEEN - Réponse à question E-005157-15 Combating the spread of pufferfish.

European legislation (Regulation (EC) No 854/2004) states that poisonous fish of the Tetraodontidae family must not be imported into Europe. The radical increase in the population of pufferfish (Lagocephalus sceleratus) is alarming. It is affecting the fishing economy and is a threat to biodiversity. The most important risk factor, however, is that this species of fish is highly toxic when eaten, as it contains the paralysing neurotoxin tetrodotoxin. However, biotechnology studies suggest that there may be potentially positive uses of this toxin in medicine and pharmacology. The increasing population of pufferfish needs to be systematically observed (over 1-2 years) and the assistance of professional fishermen is critical.

In view of the extremely negative consequences that an over-population of pufferfish would have in the Mediterranean and as the impact of this species of fish on the food chain and the ecosystem must be researched, will the Commission say: Marine and Freshwater Toxins 28/08/14 Pufferfish Poisoning and Tetrodotoxin. Pufferfish possess a potent neurotoxin, tetrodotoxin (TTX), and have caused human intoxications all over the world, especially in East Asia, where people have a time-honored food culture of eating pufferfish. TTX is distributed over a wide variety of organisms including flatworms, ribbon worms, mollusks, crustaceans, starfish, fish, and amphibians, and in the East Asian or Southeast Asian countries, TTX poisonings due to marine snails, horseshoe crabs, and gobies have also occasionally occurred, suggesting the possibility of further geographic expansion and/or diversification of TTX-bearing organisms caused by a change in the marine environment.

The origin of TTX is likely certain species of marine bacteria, and many TTX-bearing organisms are toxified via the food chain that starts with the bacteria. Marine Drugs 2012, 10(2), 329-339; Toxicity of Cultured Bullseye Puffer Fish Sphoeroides annulatus. Article Toxicity of Cultured Bullseye Puffer Fish Sphoeroides annulatus Erick J. Journal of Venomous Animals and Toxins including Tropical Diseases 2014, 20 :5 Poisoning after ingestion of pufferfish in Brazil: report of 11 cases. Pufferfish or blowfish (baîaku, in ancient Tupian language) are marine bony fish commonly found in tropical areas. They are capable of inflating their body by swallowing air or water, assuming a rounded shape that makes difficult the predation by other animals. Additionally, pufferfish may store toxins synthesized by bacteria that cause severe poisoning when its viscera, skin or muscles are ingested [1–5].

The majority of victims of pufferfish poisoning are fishermen and their families that usually consume their meat [1–5]. Journal of Sensors Volume 2011 (2011), Tetrodotoxin Detection by a Surface Plasmon Resonance Sensor in Pufferfish Matrices and Urine. International Scholarly Research Network - 2011 - Tetrodotoxin Poisoning Due to Pufferfish and Gastropods, and Their Intoxication Mechanism. International Food Research Journal 20(5): 2963-2966 (2013) Detection of tetrodotoxin and saxitoxin in dried salted yellow puffer fish (Xenopterus naritus) eggs from Satok Market, Kuching, Sarawa. International Food Research Journal 22(6): 2280-2287 (2015) Assessment of proximate composition and tetrodotoxin content in the muscle of Yellow puffer fish, Xenopterus naritus (Richardson 1848) from Sarawak, Malaysia.

EUROSURVEILLANCE 15/01/15 Detection of the pufferfish toxin tetrodotoxin in European bivalves, England, 2013 to 2014. We report the first detection of tetrodotoxins (TTX) in European bivalve shellfish. We demonstrate that TTX is present within the temperate waters of the United Kingdom, along the English Channel, and can accumulate in filter-feeding molluscs. The toxin is heat-stable and thus it cannot be eliminated during cooking. While quantified concentrations were low in comparison to published minimum lethal doses for humans, the results demonstrate that the risk to shellfish consumers should not be discarded. Background Tetrodotoxin (TTX) is the causative agent responsible for pufferfish/fugu poisoning, a fatal marine poisoning found predominantly in tropical regions. It is found mainly in the organs of fish from the Tetraodontidae family, as well as other marine species such as the blue-ringed octopus and gastropods [1].

Figure. The mean primary to secondary SRM peak ratios were 1.87 ± 0.13 (7%) for the TTX standards and 1.83 ± 0.26 (14%) for the average of all TTX-positive samples. Table 1. CDC MMWR 02/01/15 Tetrodotoxin Poisoning Outbreak from Imported Dried Puffer Fish — Minneapolis, Minnesota, 2014. January 2, 2015 / 63(51);1222-1225 Jon B. Cole, MD1,2, William G. CAYMANCHEM 17/03/14 Safety data sheet - Tetrodotoxin. Case reports in critical care 01/2012 Severe Tetrodotoxin Poisoning after Consumption of Lagocephalus sceleratus (Pufferfish, Fugu) Fished in Mediterranean Sea, Treated with Cholinesterase Inhibitor.

Abstract Lagocephalus sceleratus , or better known as the pufferfish, or fugu, is widespread in Asia and Indo-Pacific regions. It is a poisonous fish containing tetrodotoxin (TTX) which is a potent neurotoxin. In the Far East, fugu is considered a delicate dish, especially in Japan where it is prepared by experts. Nevertheless, poisoning from Lagocephalus sceleratus is not a rare event. Recent data from Japan indicate an incidence of 45 patients per year and a mortality rate of 11%. BioMed Research International Volume 2015 (2015), Biological Activities of Tetrodotoxin-Producing Enterococcus faecium AD1 Isolated from Puffer Fishes. African Journal of Biotechnology Vol. 10(41), pp. 8140-8145, 3 August, 2011 Extracted tetrodotoxin from puffer fish Lagocephalus lagocephalus induced hepatotoxicity and nephrotoxicity to Wistar rats.

Extracted tetrodotoxin from puffer fish Lagocephalus lagocephalus induced hepatotoxicity and nephrotoxicity to Wistar rats M Saoudi, M Messarah, A Boumendjel, A Abdelmouleh, W Kammoun, K Jamoussi, AE Feki Abstract This study aimed to investigate the toxicity of raw and boiled tissue extracts of Lagocephalus lagocephalus flesh or liver. Five groups of six male Wistar rats each were used.

Four groups received a daily intraperitoneal injection of raw or boiled tissue extracts of L. lagocephalus flesh and liver at a dose of 1 ml/100 g (v/w).