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Gut Microbe Strikes Again: Ulcer-Causing Bug May Also Prevent Cancer
Lundi 06 Octobre 2008 - 10:00 - 1 mois, 2 semaines depuis - 3 lectures - Presse spécialisée - Scientific American
The common ulcer-causing bug linked this summer to reduced rates of childhood asthma and allergies may also help protect adults against one type of cancer, according to a new analysis. Researchers report today in the journal Cancer Prevention Research that they found the stomach microbe Helicobacter pylori (H. pylori) may help prevent a major form of cancer of the esophagus (the muscular tube that carries food and drink from the throat to the stomach). [More]

AIDS in 1988
Lundi 06 Octobre 2008 - 09:25 - 1 mois, 2 semaines depuis - 3 lectures - Presse spécialisée - Scientific American
Editor's Note: Luc Montagnier shared the 2008 Nobel Prize in Medicine or Physiology, awarded on October 6. The new Nobel laureate co-authored this article, originally published in the October 1988 issue of Scientific American. We are making it available here due to its historical significance.As recently as a decade ago it was widely believed that infectious disease was no longer much of a threat in the developed world. The remaining challenges to public health there, it was thought, stemmed from noninfectious conditions such as cancer, heart disease and degenerative diseases. That confidence was shattered in the early 1980's by the advent of AIDS. Here was a devastating disease caused by a class of infectious agents--retroviruses--that had first been found in human beings only a few years before. In spite of the startling nature of the epidemic, science responded quickly. In the two years from mid-1982 to mid-1984 the outlines of the epidemic were clarified, a new virus-the human immunodeficiency virus (HN)-was isolated and shown to cause the disease, a blood test was formulated and the virus's targets in the body were established. [More]

Report Faults District's HIV/AIDS Awareness
Mardi 23 Septembre 2008 - 21:00 - 1 mois, 4 semaines depuis - 3 lectures - Presse généraliste - The Washington Post (health)
The District government has improved its performance this year in battling the HIV/AIDS epidemic, but the mayor needs to strengthen the city's public awareness campaign to combat one of the nation's highest infection rates, according to a report to be released today by a prominent advocacy group.

Molecular Machines That Control Genes
Vendredi 03 Octobre 2008 - 12:25 - 1 mois, 2 semaines depuis - 3 lectures - Presse spécialisée - Scientific American
Editor's Note: This article was originally published in the February 1995 issue of Scientific American. We are reposting it this week because Robert Tijan has just been named president of the Howard Hughes Medical Institute.Asthma, cancer, heart disease, immune disorders and viral infections are seemingly disparate conditions. Yet they turn out to share a surprising feature. All arise to a great extent from overproduction or underproduction of one or more proteins, the molecules that carry out most reactions in the body. This realization has recently lent new urgency to research aimed at understanding, and ultimately manipulating, the fascinating biochemical machinery that regulates an essential step in protein synthesis: the transcription of genes. For a protein to be generated, the gene that specifies its composition must be transcribed, or copied, from DNA into strands of messenger RNA, which later serve as the templates from which the protein is manufactured. [More]

Existing Drug Reverses a Form of Mental Retardation in Mice
Mercredi 25 Juin 2008 - 16:00 - 4 mois, 4 semaines depuis - 3 lectures - Cancer - Scientific American
A drug already on the market for a completely unrelated condition could be used to treat a form of mental retardation linked to autism--if the results of a study in mice hold up, researchers report. [More]

A Sore Throat That Turned Deadly Serious
Lundi 22 Septembre 2008 - 21:00 - 1 mois, 4 semaines depuis - 3 lectures - Presse généraliste - The Washington Post (health)
During the worst moments of her ordeal last month, her mouth gaping as wide as possible into an oxygen mask in a labored effort to keep breathing, Nancy Szokan remembers wishing she could just pass out.

Mysterious Brain Cells Linked to Blood Flow
Vendredi 20 Juin 2008 - 10:00 - 5 mois depuis - 3 lectures - Cancer - Scientific American
Nearly a century after the discovery of strange star-shaped cells in the brain, scientists say they have finally begun to unravel their function. [More]

Jump seen in staph-linked flu deaths in kids
Dimanche 05 Octobre 2008 - 21:08 - 1 mois, 2 semaines depuis - 3 lectures - Presse généraliste - The Washington Post (health)
CHICAGO -- More children have died from flu because they also had staph infections, according to a new government report that urges parents to have their kids get the flu shot.

Food Stamp Participation Increases as Economy Lags
Vendredi 03 Octobre 2008 - 21:00 - 1 mois, 2 semaines depuis - 3 lectures - Presse généraliste - The Washington Post (health)
Almost a million more people participated in the federal government's food stamp program for the needy between April and July, according to the U.S. Department of Agriculture, which oversees the program.

Consumer Group Seeks Ban on Some Food Dyes
Mardi 03 Juin 2008 - 21:00 - 5 mois, 2 semaines depuis - 3 lectures - Presse généraliste - The Washington Post (health)
A consumer advocacy group called on the Food and Drug Administration yesterday to ban the use of eight artificial colorings in food, asserting that the additives may cause hyperactivity and behavior problems in some children.

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