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Cancer Rx: Move?
Lundi 16 Juin 2008 - 21:00 - 6 mois, 3 semaines depuis - Presse généraliste - The Washington Post (health)
The standard weapons in the fight against cancer -- surgery, chemotherapy and radiation -- may soon be joined by something far simpler: exercise.

Standing Up for Shoes That Give Your Feet a Hand
Lundi 16 Juin 2008 - 21:00 - 6 mois, 3 semaines depuis - Presse généraliste - The Washington Post (health)
It was near the end of " Sex and the City," after the starlets had worn high heels in the snow, at the pool, to the beach, in the rain (is this sounding like Dr. Seuss?) and, of course, to bed. It was after the one who got pregnant went jogging and we were not allowed to see what she was wearing ...

An Unethical Ethicist? [News]
Lundi 16 Juin 2008 - 16:10 - 6 mois, 3 semaines depuis - Presse spécialisée - Scientific American
When Glenn McGee founded the Alden March Bioethics Institute (AMBI) at Albany Medical College in New York State in 2005, magazine articles and newspaper stories hailed the arrival of the man once described as "Socrates with a beeper." Now, a month after his abrupt departure, former colleagues are painting a complex portrait that suggests the ethicist's own personal and professional relationships may have led to the institute's undoing.McGee remains a tenured professor at AMBI, and neither he nor college officials will discuss the circumstances surrounding his change in status. Former colleagues, however, say the institute began to unravel shortly after his arrival when Union College in Schenectady, N.Y., severed its longtime educational partnership with AMBI's parent medical school and as disillusioned faculty--accusing the ethicist of everything from forgery to spreading insulting rumors--left. [More]

Nanotech to Regrow Cartilage and Soothe Aching Knees [News]
Lundi 16 Juin 2008 - 16:00 - 6 mois, 3 semaines depuis - Presse spécialisée - Scientific American
Researchers say they may soon be able to repair injured and worn-out cartilage with the help of nanotubes. Currently, patients must either go under the knife to mend faulty cartilage (connective tissue that normally pads the ends of bones at joints to keep them from grinding against one another). But scientists say they may one day be able to insert microscopic carbon nanotubes into injured joints--such as knees--encouraging new, stronger cartilage cells to grow in place damaged or thinning ones. [More]

Any knowledge that might be useful: Leroy Hood [Where Are They Now?]
Lundi 16 Juin 2008 - 11:00 - 6 mois, 3 semaines depuis - Presse spécialisée - Scientific American
FINALIST YEAR: 1956HIS FINALIST PROJECT: Geologic mapping of rock layers in Wyoming [More]

Evidence-based medicine in Russia: the challenge and the hope [Sciam Observations Blog]
Lundi 16 Juin 2008 - 09:19 - 6 mois, 3 semaines depuis - Presse spécialisée - Scientific American
[Editor's note: Merrill Goozner has spent the last two weeks reporting on the state of Russian health care. [More]

Improving Health by Targeting Gut Bacteria: A Q&A with Jeremy Nicholson [Features]
Dimanche 15 Juin 2008 - 22:01 - 6 mois, 3 semaines depuis - Presse spécialisée - Scientific American
This story is a supplement to the feature "Jeremy Nicholson's Gut Instincts: Researching Intestinal Bacteria" which was printed in the July 2008 issue of Scientific American.One of the hottest biomedical fields right now is metabolomics--the study of the metabolites and other chemicals that the body and its bacteria produce. The goal is to find out how the compounds can serve as indicators of health and disease. For the Insights story, "Going with His Gut Bacteria," in the July 2008 Scientific American, Melinda Wenner talked with Jeremy Nicholson of Imperial College London. One of the founders of the field, Nicholson thinks that metabolomics may prove that the best medicine actually targets intestinal flora rather than cells of the body. Here is an edited excerpt from the interview. [More]

News Scan Briefs: Eating with Tension, Cancer Marriage, Milk and Diabetes [Scientific American Magazine]
Dimanche 15 Juin 2008 - 22:00 - 6 mois, 3 semaines depuis - Presse spécialisée - Scientific American
Eating with TensionThe long, thin beaks of shorebirds called phalaropes are no good at sucking up water and any tasty crustaceans within. Instead they rely on the attractive force of liquid known as surface tension to ferry prey upward. The birds first swim in small, fast circles on the surface of the water, creating a vortex that pulls creatures up within their reach. They next peck at the water and then rapidly open and close their beaks. This scissoring motion both pulls and squeezes droplets, about two millimeters in size, and moves them from the tip of their beaks into their mouths. In experiments with mechanical beaks, scientists at the Massachusetts Institute of Technology and the French National Center for Scientific Research find that the droplets do not move well if the water contains oil, detergents and other pollutants that alter water’s surface tension. Draw in the findings from the May 16 Science. [More]

News Scan Briefs: Eating with Tension, Cancer Marriage, Milk and Diabetes [Scientific American Magazine]
Dimanche 15 Juin 2008 - 22:00 - 6 mois, 3 semaines depuis - Cancer - Scientific American
Eating with TensionThe long, thin beaks of shorebirds called phalaropes are no good at sucking up water and any tasty crustaceans within. Instead they rely on the attractive force of liquid known as surface tension to ferry prey upward. The birds first swim in small, fast circles on the surface of the water, creating a vortex that pulls creatures up within their reach. They next peck at the water and then rapidly open and close their beaks. This scissoring motion both pulls and squeezes droplets, about two millimeters in size, and moves them from the tip of their beaks into their mouths. In experiments with mechanical beaks, scientists at the Massachusetts Institute of Technology and the French National Center for Scientific Research find that the droplets do not move well if the water contains oil, detergents and other pollutants that alter water’s surface tension. Draw in the findings from the May 16 Science. [More]

Could Our Own Proteins Be Used to Help Us Fight Cancer? [Scientific American Magazine]
Dimanche 15 Juin 2008 - 22:00 - 6 mois, 3 semaines depuis - Cancer - Scientific American
In 1962 someone at the Genetics Institute in Pavia, Italy, turned up the temperature in an incubator holding fruit flies. When Ferruccio Ritossa, then a young geneticist, examined the cells of these “heat shocked” flies, he noticed that their chromosomes had puffed up at discrete locations. The puffy appearance was a known sign that genes were being activated in those regions to give rise to their encoded proteins, so those sites of activity became known as the heat shock loci.The effect was reproducible but initially considered to be unique to the fruit fly. It took another 15 years before the proteins generated when these chromosome puffs appear were detected in mammals and other forms of life. In what is certainly among the most absorbing stories in contemporary biology, heat shock proteins (HSPs) have since been recognized as occupying a central role in all life--not just at the level of cells but of organisms and whole populations. [More]

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