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Saturday, June 6, 2015

Health News:‘Dangerous Domoic Acid levels prompt seafood warning in California ♦ CDC: Arizona finds two types of salmonella in imported tuna ♦ Seamless closure of surgical incisions in eyes

‘Dangerous Domoic Acid levels prompt seafood warning in California Due to “dangerous levels” of domoic acid found in some species, the California Department of Public Health is advising consumers not to eat recreationally harvested mussels and clams, commercially or recreationally caught anchovy and sardines, or the internal organs of commercially or recreationally caught crab taken from Monterey and Santa Cruz counties.  
CDC: Arizona finds two types of salmonella in imported tuna In an investigation update the U.S. Centers for Disease Control and Prevention (CDC) reported that unopened frozen ground tuna products tested by the Arizona State Public Health Laboratory had found Salmonella Newport in one sample and Salmonella Weltevreden in another sample.
Eyes sealed shut: Seamless closure of surgical incisions A researcher has spent much of his career honing his pioneering technique called 'laser welding,' which heats incisions in a precisely controlled manner for optimal wound closure. His latest study explores a radical new application to seal transplants of the cornea -- which could dramatically advance eye surgery.
Intelligent bacteria for detecting disease Research teams have transformed bacteria into 'secret agents' that can give warning of a disease based solely on the presence of characteristic molecules in the urine or blood. To perform this feat, the researchers inserted the equivalent of a computer program into the DNA of the bacterial cells. The bacteria thus programmed detect the abnormal presence of glucose in the urine of diabetic patients. This work is the first step in the use of programmable cells for medical diagnosis.

Microbiology: Gut bacteria cooperate when life gets tough Researchers have discovered with the help of computer models how gut bacteria respond to changes in their environment -- such as a decrease in oxygen levels or nutrient availability. Microorganisms that normally compete or overthrow one another can switch to a cooperative lifestyle when their living conditions change: They even start producing substances to make life easier for the other species, helping them to survive. The entire microbial community then stabilizes

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