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Scientific American - Objets Actus

Scientific American Magazine: Cancer Clues from Pet Dogs
Samedi 11 Novembre 2006 - 22:00 - 2 années depuis - Cancer - Scientific American
Imagine a 60-year-old man recuperating at home after prostate cancer surgery, drawing comfort from the aged golden retriever beside him. This man might know that a few years ago the director of the National Cancer Institute issued a challenge to cancer re¿searchers, urging them to find ways to "eliminate the suffering and death caused by cancer by 2015." What he probably does not realize, though, is that the pet at his side could be an important player in that effort.

News: Moles Contain Self-Policing Cells against Cancer
Mardi 03 Octobre 2006 - 13:00 - 2 années, 2 mois depuis - Cancer - Scientific American
Moles are more than a sometimes unsightly skin growth. Most harbor mutations that can trigger deadly skin cancer--melanoma--and most fair-skinned humans have at least 10 such moles. Yet, only one in 65 of such people will develop melanoma in their lifetimes. And research has now pinpointed how a series of mechanisms prevents the cells that produce pigment--known as melanocytes--from fulfilling any cancerous destiny.

News: Engineered Immune Cells Beat Back Cancer
Jeudi 31 Août 2006 - 12:00 - 2 années, 3 mois depuis - Cancer - Scientific American
Cancer results from cells gone wild. Proliferating out of control, the cells spawn malignant growths that can travel throughout the human body, spreading the disease. Some patients' immune systems are able to recognize such tumors and begin to attack them, and research has shown that boosting the patients' levels of such tumor-infiltrating lymphocytes can help defeat deadly cancer. Now scientists have transformed immune cells into cancer fighters outside the body--and prompted complete remission in two subjects when those cells were reintroduced.

In Focus: Turning Yellow
Dimanche 09 Avril 2006 - 22:00 - 2 années, 7 mois depuis - Cancer - Scientific American
A personal ad seeking the perfect vaccine might read: "Must confer strong immunity, quickly, with a single dose and minimal side effects. Should offer lasting protection, preferably for a lifetime." Unfortunately, few vaccines would measure up. Many of them require multiple doses to get the immune system's attention or periodic booster shots to refresh its memory. Others may elicit a partial immune response but fail to activate T cells, the powerful search-and-destroy soldiers of the immune system.

In Focus: Science & Technology Web Awards 2005
Dimanche 02 Octobre 2005 - 22:00 - 3 années, 2 mois depuis - Cancer - Scientific American

Ask the Experts: Why does skin wrinkle with age? What is the best way to slow or prevent this process?
Dimanche 25 Septembre 2005 - 22:00 - 3 années, 2 mois depuis - Cancer - Scientific American
Suzan Obagi, assistant professor in dermatology at the University of Pittsburgh and director of the Cosmetic Surgery and Skin Health Center, explains.

Actus fournies par : Scientific American

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