Featured Research

from universities, journals, and other organizations

Eating Seafood That Contains Toxic Substances Can Affect The Nervous System

Date:
April 9, 2005
Source:
Lancet
Summary:
Eating seafood containing toxic substances can have serious neurological as well as gastrointestinal effects, reveals a review in the April issue of THE LANCET NEUROLOGY.

Eating seafood containing toxic substances can have serious neurological as well as gastrointestinal effects, reveals a review in the April issue of THE LANCET NEUROLOGY.

In parts of the Pacific, the number of cases of marine poisoning exceeds 1200 per 100,000 people per year. Although most of the burden of marine poisoning is in rural coastal communities, many people who live outside these communities, or travel to them, are presenting to their doctors with acute or ongoing effects after eating seafood.

Geoffrey Isbister (Charles Darwin University, Darwin, Australia) and colleagues reviewed data on the neurological syndromes associated with the ingestion of common marine toxins. Their article details the three major clinical syndromes that present after the consumption of seafood containing toxic substances: ciguatera, puffer fish (tetrodotoxin) poisoning, and shellfish poisoning. Ciguatera poisoning causes both gastrointestinal and neurological effects and previous studies suggest the proportion of each type is regionally dependent.

Neurological effects predominate in the Indo-Pacific region whereas gastrointestinal ones predominate in the Caribbean. Many fish have been associated with ciguatera poisoning, including large tropical fish, such as moray eels. Puffer fish poisoning results from the ingestion of fish containing tetrodotoxin and is the commonest lethal marine poisoning. It mainly occurs in southeast Asia and most commonly in Japan where puffer fish fillet (fugu) is a delicacy. Neurological effects vary depending on the severity of poisoning but can include numbness, slurred speech, incoordination, and paralysis. Shellfish poisoning makes up about 1.1% of food-borne illness in the USA. Three major neurological toxic syndromes result from shellfish poisoning – paralytic, neurotoxic, and amnesic.

Dr Isbister concludes: "Description of the common neurotoxic marine poisonings is important for increased awareness of these syndromes. However, prevention of potentially life-threatening poisoning is key and clearly, people should exercise caution whenever confronted with a plate of exotic shellfish or large tropical fish. Travellers should consult appropriate medical travel information services for region and season specific information."


Story Source:

The above story is based on materials provided by Lancet. Note: Materials may be edited for content and length.


Cite This Page:

Lancet. "Eating Seafood That Contains Toxic Substances Can Affect The Nervous System." ScienceDaily. ScienceDaily, 9 April 2005. <www.sciencedaily.com/releases/2005/03/050326002349.htm>.
Lancet. (2005, April 9). Eating Seafood That Contains Toxic Substances Can Affect The Nervous System. ScienceDaily. Retrieved April 16, 2014 from www.sciencedaily.com/releases/2005/03/050326002349.htm
Lancet. "Eating Seafood That Contains Toxic Substances Can Affect The Nervous System." ScienceDaily. www.sciencedaily.com/releases/2005/03/050326002349.htm (accessed April 16, 2014).

Share This



More Plants & Animals News

Wednesday, April 16, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Change of Diet Helps Crocodile Business

Change of Diet Helps Crocodile Business

Reuters - Business Video Online (Apr. 16, 2014) Crocodile farming has been a challenge in Zimbabwe in recent years do the economic collapse and the financial crisis. But as Ciara Sutton reports one of Europe's biggest suppliers of skins to the luxury market has come up with an unusual survival strategy - vegetarian food. Video provided by Reuters
Powered by NewsLook.com
Could Even Casual Marijuana Use Alter Your Brain?

Could Even Casual Marijuana Use Alter Your Brain?

Newsy (Apr. 16, 2014) A new study conducted by researchers at Northwestern and Harvard suggests even casual marijuana use can alter your brain. Video provided by Newsy
Powered by NewsLook.com
Couples Who Sleep Less Than An Inch Apart Might Be Happiest

Couples Who Sleep Less Than An Inch Apart Might Be Happiest

Newsy (Apr. 16, 2014) A new study by British researchers suggests couples' sleeping positions might reflect their happiness. Video provided by Newsy
Powered by NewsLook.com
Passengers Abuzz After Plane Hits Swarm of Bees

Passengers Abuzz After Plane Hits Swarm of Bees

AP (Apr. 16, 2014) An Allegiant Airlines plane from Las Vegas to Duluth, Minnesota turned around shortly after take-off, after a swarm of bees clouded the windshield and got sucked into the engines. (April 16) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins