In the News
Timing Scavenging To Prevent Age-related Blindness
Light-detecting cells in the eye must renew their light-gathering apparatus each day at sunrise (for rod cells) or sunset (for cone cells) by shedding their outermost tips, which are then gobbled up and digested by surface (epithelial) cells. Nandrot and colleages now report in the December 20 issue of The Journal of Experimental Medicine that the epithelial cells need a protein called an integrin to detect when and how to gobble up the debris. Study Details Pathways To Flu Virus Exposure, Validates Preventative M
With estimates that half the population of the United States could be infected with the 2009 H1N1 flu virus this fall and winter, a new study examines four flu exposure pathways and quantifies the risk posed by each pathway, which, the analysis found, varies based on changes in viral concentrations. New Gene Shows Way For Autoimmune Disease
A new gene suspected to contribute to autoimmune diseases such as type 1 diabetes and lupus -- a condition in which the body's own immune system attacks organs such as the kidneys and skin -- has been discovered by Australian National University immunologists. American Red Cross: Lifeguarding
Links to local Red Cross organizations that provide lifeguard education and certification opportunities. Also includes a list of sites that post lifeguarding jobs, a list of local lifeguard competitions, and stories of Red Cross-trained lifeguards who have saved the lives of others. From the American National Red Cross. Hacking the Human Life Span
Resveratrol, a compound found in grape skin and red wine, is the latest tool in the kit for many highly educated professionals who believe they can increase longevity by changing their body chemistry. By Brandon Keim. Huge Success With Directly Loaded Implants In The Mouth
In the near future toothless patients will no longer have to wait several months for ordinary titanium implants to heal. Nearly every one of 450 patients who had bridges anchored in their implants had immediate success. Most patients who have titanium implants in their mouth have to wait between four and seven months before the implant is considered stable enough for crowns or bridges to be secured in the screw. Insomniacs Are More Likely To Report A Family History Of The Sleep Dis
Individuals with either current or past insomnia are more likely to report a family history of insomnia than are those who have never had the sleep disorder. Multiple Campylobacter Genomes Sequenced
Campylobacteriosis is usually caused by C. jejuni, a spiral-shaped bacterium normally found in cattle, swine, and birds, where it causes no problems. But the illness can also be caused by C. coli (also found in cattle, swine, and birds), C. upsaliensis (found in cats and dogs), and C. lari (present in seabirds in particular). Fruit And Vegetable Intake In Pregnant Women Reduces Risk Of Upper Res
Researchers have observed in a study of pregnant women that consumption of at least seven servings per day of fruits and vegetables moderately reduced the risk of developing an upper respiratory tract infection. Western Canada's Glaciers Hit 7000-Year Low
Tree stumps at the feet of Western Canadian glaciers are providing new insights into the accelerated rates at which the rivers of ice have been shrinking due to human-aided global warming. Scientists radiocarbon-dated wood from the newly visible stumps to see how long they have been in cold storage. The result was a surprising 7000 years.
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