In the News
Scientists Uncover New Target In Cancer Mutation Puzzle University of Rochester scientists, while investigating the two most frequent types of mutations in cancer, discovered a possible new route to treatment that would take advantage of the mutations instead of trying to repair them. The research is reported online this week in the journal Nature Structural &Molecular Biology. Research May Provide Ways To Inhibit Cancer's Ability To Resist Treatm A team of researchers at the University of Alberta in Edmonton and the Samuel Lunenfeld Research Institute in Toronto have discovered how a key enzyme involved in repairing DNA is put together and how it works--a development that opens up new therapies for making cancer cells more vulnerable to attack. Chemical Compound Found In Tree Bark Stimulates Growth, Survival Of Br Researchers have identified a compound in tree bark that mimics the chemical reactions of a naturally occurring molecule in the brain responsible for stimulating neuronal cell signaling. The tree bark compound, known as gambogic amide, behaves much like Nerve Growth Factor, a molecule found in the brain. NGF binds to TrkA, a neuronal receptor, and activates neuronal signaling. It is known that the loss of TrkA density correlates with neuronal atrophy and severe cognitive impairment such as that associated with Alzheimer's disease. Fractured Leg Bone Not The End Of Tutankhamen Mystery Original X-rays of Tutankhamen's body, taken by scientists at the University of Liverpool, could throw new light on the mystery of the young King's death. Sweet as can be: How E. coli gets ahead Scientists have discovered how certain bacteria such as Escherichia coli have evolved to capture rare sugars from their environment giving them an evolutionary advantage in naturally competitive environments like the human gut. Past Experience Of Pheromones Induces Dominant Courtship Behavior In F By investigating the interplay between pheromone signaling and behavior in fruit flies, researchers have begun to understand how an adult fly's earlier experience as a young individual can influence its behavior towards other flies as an adult. In particular, the researchers found that pheromone signals in the context of experience with adult flies can influence how young flies will behave once they reach maturity.
Buried Craters And Underground Ice: Mars Express Uncovers Depths Of Ma For the first time in the history of planetary exploration, the MARSIS radar on board ESA's Mars Express has provided direct information about the deep subsurface of Mars. First data include buried impact craters, probing of layered deposits at the north pole and hints of the presence of deep underground water-ice. Evolution Of Male-female Differences Within A Shared Genome One of the major components of the world's biological diversity are the differences between males and females in traits related to mating, including weapons used when competing for mates and display traits used to seduce them. Such gender differences are thought to arise because selection acts differently on each sex. The conflicting interests of males and females in reproduction are thought to be a key source of sex-specific selection on such traits. New Options In 'Personalized'Cancer Treatment And Prevention Molecular diagnostics promises to provide new strategies for tailoring therapies to fit the needs of each cancer patient's unique biology. Researchers can now fine-tuned the treatment of a number of different cancer types, including lung and ovarian, based on the genetic profile of the patient's tumors. ToxFAQs For Vinyl Chloride Toxicological profile for vinyl chloride, a colorless gas that "is used to make polyvinyl chloride (PVC). PVC is used to make a variety of plastic products."Questions and answers discuss topics related to the health effects of vinyl chloride, which is a carcinogen. Also in Spanish. From the Agency for Toxic Substances and Disease Registry (ATSDR) of the Centers for Disease Control and Prevention (CDC).
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