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How Do Tumors Spread? Scientists and Engineers Team Up to Solve Mystery [News]
Mercredi 12 Mars 2008 - 14:00 - 10 mois depuis - 28 lectures - Cancer - Scientific American
Nine out of every 10 cancer deaths occur because the disease has spread. Yet metastasis is the most poorly understood process in cancer biology. [More]

News: Tumor Time Bombs Set Off by Stem Cells
Jeudi 10 Janvier 2008 - 22:00 - 12 mois depuis - 28 lectures - Cancer - Scientific American
Researchers say they have identified a switch that makes dormant breast cancer cells that have traveled to the lungs swell to lethal proportions--completing the dreaded process of metastasis or cancer spread. A team from Cold Spring Harbor Laboratory in Long Island, N.Y., reports that it staved off full-blown metastasis in mice by preventing mini-tumors in the lungs from recruiting stem cells called endothelial progenitors, which assemble into blood vessels to nourish the malignancy.

Social Networks' Sway May Be Underestimated
Dimanche 25 Mai 2008 - 21:00 - 7 mois, 2 semaines depuis - 28 lectures - Presse généraliste - The Washington Post (health)
Facebook, MySpace and other Web sites have unleashed a potent new phenomenon of social networking in cyberspace. But at the same time, a growing body of evidence is suggesting that traditional social networks play a surprisingly powerful and underrecognized role in influencing how people behave.

News: Defense against Ancient Virus Opened Door to HIV
Jeudi 21 Juin 2007 - 12:00 - 1 année, 6 mois depuis - 28 lectures - Cancer - Scientific American
Early humans successfully fended off a virus that infected chimpanzees by evolving a protein capable of neutralizing it, according to a new study. But what goes around comes around, evolutionarily speaking: Four million years later, the same protein seems to have left us more vulnerable than other primates to the human immunodeficiency virus (HIV).

News: Genes May Be Key to Lung Cancer Care
Samedi 02 Juin 2007 - 11:00 - 1 année, 7 mois depuis - 28 lectures - Cancer - Scientific American
Researchers have found that Japanese lung cancer patients in general respond better than American sufferers to chemotherapy but they also tend to experience more debilitating side effects from the treatment.

In Focus: Special Report: The Poisoning of Our Pets
Mercredi 28 Mars 2007 - 15:30 - 1 année, 9 mois depuis - 28 lectures - Cancer - Scientific American
Early this month, Jim Valentine found himself faced with a heart-wrenching decision: the 35-year-old, unemployed computer consultant from Lansing, Mich., had to decide whether to shell out thousands of dollars he didn't have to try to save his beloved dying cat, Silvus. His nine-year-old, silver-furred friend was suffering from kidney failure and he likely needed a pricey kidney transplant. Instead, Silvus was put to death on March 3.

News: Retroviruses Cross Little Bridges to Infect New Cells
Lundi 12 Février 2007 - 10:00 - 1 année, 11 mois depuis - 28 lectures - Cancer - Scientific American
Researchers at Yale University's School of Medicine have discovered a novel mechanism by which viruses infect neighboring cells. Their discovery, appearing in this week's Nature Cell Biology could lead to new antiviral therapies.

Pollution au Tricastin : Jean-Louis Borloo évoque d'éventuelles poursuites pénales
Jeudi 10 Juillet 2008 - 06:46 - 6 mois depuis - 28 lectures - Presse généraliste - Le monde Sciences
L'ampleur de la pollution causée par la fuite d'une cuve d'effluents contenant de l'uranium, a été revue à la baisse.

A Suspect Diagnosis
Lundi 03 Mars 2008 - 22:00 - 10 mois, 1 semaine depuis - 28 lectures - Presse généraliste - The Washington Post (health)
Whenever doctors told Ruben Galiano that his wife, Olga, had multiple sclerosis, he tried not to look as though he didn't believe them. To the former hotel cook, her symptoms resembled those he had seen in stroke patients. And the MS medication she had been taking hadn't done a thing.

USDA Rejects 'Downer' Cow Ban
Jeudi 28 Février 2008 - 22:00 - 10 mois, 1 semaine depuis - 27 lectures - Presse généraliste - The Washington Post (health)
Agriculture Secretary Ed Schafer told Congress yesterday that he would not endorse an outright ban on "downer" cows entering the food supply or back stiffer penalties for regulatory violations by meat-processing plants in the wake of the largest beef recall in the nation's history.

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