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Tag: "paralytic" at biology news

Oceans more vulnerable to agricultural runoff than previously thought, study finds

...se outbreaks of life-threatening diseases, such as paralytic shellfish poisoning, which can shut down mussel and clam harvesting for long periods of time. Another concern is hypoxia, or oxygen depletion, caused by excessive algae growth. As the algal mass sinks, it is consumed by bacteria, which use up most o...

At the molecular level, the predator is the prey

...d death can result. Tetrodotoxin (TTX), a powerful paralytic poison concentrated in the newts' skin, can bind to garter snake nerve cell channels and prevent sodium ions from flowing freely. "These channels are absolutely fundamental to every aspect of nerve and muscle function and are highly specific gateway...

Mutation in clams protects against paralytic shellfish poisoning but raises human health risk

...le, clams can be affected by the toxins that cause paralytic shellfish poisoning (PSP), but scientists have now identified a mutation in clams that gives some protection. PSP toxins interfere with nerve function, and the mutation, which changes a single amino acid in a sodium channel, makes nerves less sensiti...

UN pours polio vaccine into Yemen amid outbreak

...mmunize all children under 5 against a fast-moving paralytic poliovirus outbreak, the United Nations Children's Fund (UNICEF) said it was shipping in 6 million doses of polio vaccine. In addition, 10 experts from the World Health Organization (WHO) are working with national coordinators and helping to train v...

Polio vaccination strategies assessed as eradication nears

...se the inactivated virus in IPV cannot mutate into paralytic VDPV. However, the immune response generated in the digestive tract by IPV was believed to be less potent that that of OPV. Therefore, although those immunized with IPV would be protected from polio, they could still be infected and shed virus, contr...

Scientists reveal how deadly toxin hijacks cells

... development of new treatments against botulism, a paralytic illness caused by the toxin more commonly known as botox. As small amounts of botox are also known to alleviate many medical problems, the recent work could help to quell any risks associated with the toxin's clinical use. Writing in the current onl...

The diversity of marine life in the Gulf of Maine region is much greater than previously thought

...of the genus Alexandrium and are the source of the paralytic shellfish poisoning known as "red tide." A major red tide swept the New England coast in 2005, shutting down the clamming industry for weeks. What New Englanders call the "steamer, "long-neck," squirt clam," or "belly clam" ?or simply "the cla...

Survivors of childhood polio do well decades later as they age

...three major types of polio include spinal polio, a paralytic polio that attacks nerve cells in the spinal cord; bulbar polio, in which the virus attacks motor neurons in the brainstem; and bulbospinal polio, a combination of spinal and bulbar polios. The effects of polio run the gamut from a complete return to...

Harmful Algal Blooms monitored from space in Chile

...02 an HAB outbreak in Chile was responsible for 73 paralytic poisonings and two deaths. In 2004, more than 1500 cases of poisonings occurred resulting in an estimated 30 million Euro yearly loss. And in 2005, more than 10 000 cases were document, including one death. Just like plants on land, algae employ gr...

Highly concentrated botulinum preparation for cosmetic injections can result in severe illness

...November 22/29 issue of JAMA. Botulism is a rare paralytic illness caused by the toxins of the spore-forming bacterium Clostridium botulinum and toxin-producing strains of Clostridium baratii and Clostridium butyricum. Botulism, left untreated, may result in respiratory failure and death, according to backgr...

Billions of dollars saved in US by polio vaccination

...ns that prevent approximately 1.1 million cases of paralytic polio and over 160,000 deaths, thus saving America...savings to society." Although the last case of paralytic polio from wild poliovirus occurred in the U.S. in 1979, poliovirus outbreaks currently still occur ...

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