Deadly Toxins in Shark Fin Soup Linked to Alzheimer's

Monday, 27 February 2012, 04:57 Hrs
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Washington : The growing demand for shark fin soup is not only endangering the marine species, but is also a deadly threat to brain health because of high neurotoxin levels.

University of Miami (UM) scientists discovered high concentrations of neurotoxin BMAA in shark fins, linked with neurodegenerative diseases such as Alzheimer's and Lou Gehrig's Disease.

Their study suggests that the consumption of shark fin soup and cartilage pills may pose a significant health risk for degenerative brain diseases, the journal Marine Drugs reports.

"Shark fins are primarily derived through finning, a practice whereby shark fins are removed at sea and the rest of the mutilated animal is thrown back in the water to die," said co-author Neil Hammerschlag, research assistant professor of Marine Affairs & Policy at Miami, according to a Miami statement.

"As a result, many shark species are on the road to extinction. Because sharks play important roles in maintaining balance in the oceans, not only is shark fin soup injurious to the marine environment, but our study suggests that it is likely harmful to the people who are consuming them," added Hammerschlag.

Seven species of shark were tested for this study: blacknose, blacktip, bonnethead, bull, great hammerhead, lemon, and nurse sharks. Samples were collected from live animals in waters throughout South Florida.

"The concentrations of BMAA in the samples are a cause for concern, not only in shark fin soup, but also in dietary supplements and other forms ingested by humans," says study co-author Deborah Mash, professor and director of the University of Miami Brain Endowment Bank.


Source: IANS
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