Antioxidants fail to prevent prostate cancer
sea-maid submitted, created time 4 weeks 1 day (www.sciencenews.org)
Despite much hope generated by earlier studies, vitamins C and E and the element selenium have failed to reduce the incidence of prostate cancer. The disappointing news from two huge trials is reported online December 9 in the Journal of the American Medical Association. 
Oncogenesis: It's all about translation
sea-maid submitted, created time 4 weeks 1 day (www.nature.com)
The oncogene MYC regulates many cellular processes, making it difficult to pin down its precise function in driving tumor development. Maria Barna, David Ruggero and colleagues suggest that changes to cap-dependent and cap-independent translation during mitosis are pivotal.
New window on the high-energy universe
sea-maid submitted, created time 4 weeks 1 day (www.sciencenews.org)
New telescope finds that the high-energy share of gamma-ray bursts arrive at Earth significantly later than the low-energy portion.
Enzyme May Hold Key to Successfully Treating Pancreatic Cancer with Targeted Immunotherapy,
sea-maid submitted, created time 4 weeks 1 day (www.sciencedaily.com)
An enzyme that is overexpressed in pancreatic cancer cells may hold the key to successfully treating the disease with targeted immunotherapy, researchers from Thomas Jefferson University reported at the 2008 Annual Meeting of the Southern Surgical Association.
Drilling Holes Through Deadly Bacteria's Kevlar-like Hide
piggy submitted, created time 1 week 4 days (www.sciencedaily.com)
To protect themselves from human defenses, disease-causing bacteria have evolved a cell wall made from a nearly impenetrable tangle of tightly woven strands. That’s made it difficult for scientists to see what goes on inside these potentially deadly organisms. But that era is now over. Rockefeller University researchers have now figured out how to drill holes through the Kevlar-like hide of gram-positive bacteria without obliterating them, and in doing so, they’ve made it possible to study, from the inside out, most of the known bacteria on the planet.
The work, led by Vincent A
Key to Regulation of Puberty Discovered
sea-maid submitted, created time 3 weeks 6 days (www.sciencedaily.com)
A team of scientists from the University of Cambridge and the University of Cukurova in Turkey have taken a major step to understanding how the brain controls the onset of puberty.
Gene Mutation Is Tied to Fast Fat Breakdown
sea-maid submitted, created time 3 weeks 6 days (lumponablog.com)
For the sake of heart disease research, 809 members of the Old Order Amish community agreed to go to a clinic in Lancaster, Pa., near their homes, and drink a rich milkshake that was made mostly of heavy cream. Over the next six hours, a group of investigators took samples of their blood, determining how much fat was churning through their bloodstreams
Estrogen Pills Can Benefit Women with Metastatic Breast Cancer
sea-maid submitted, created time 3 weeks 6 days (www.newswise.com)
Estrogen-receptor positive metastatic breast cancer often develops resistance to conventional therapies designed to severely lower a woman's estrogen level. A group of researchers headed by a breast cancer specialist at Washington University School of Medicine in St. Louis has found that in one-third of these cases, such tumors will respond, paradoxically, to therapy that raises a woman's estrogen level.
Antibody fights AIDS-like disease in monkeys
sea-maid submitted, created time 3 weeks 6 days (www.nature.com)
An antibody treatment has rejuvenated the immune systems of macaques infected with a virus called SIV, allowing the monkeys to fend off the symptoms of an AIDS-like disease for months. SIV is studied as a model for HIV infection in humans, and the therapy could be tested in clinical trials of HIV-infected patients as soon as next year, pending approval by regulators.
Vatican toughens stance on embryo research
sea-maid submitted, created time 3 weeks 6 days (www.nature.com)
The Roman Catholic Church has reaffirmed its opposition to embryonic stem cell research in a document that updates its twenty-year-old position on biomedical research and reproductive medicine.
The most significant change is that the Church rejects the idea that scientists who work with tissues derived from stem cells or fetuses are blameless so long as they had no part in the creation of the cell line or tissue sample
Exercise Suppresses Appetite by Affecting Appetite Hormones
piggy submitted, created time 2 weeks 6 days (www.sciencedaily.com)
A vigorous sixty-minute workout on a treadmill affects the release of two key appetite hormones, ghrelin and peptide YY, while ninety minutes of weight lifting affects the level of only ghrelin, according to a new study. Taken together, the research shows that aerobic exercise is better at suppressing appetite than non-aerobic exercise and provides a possible explanation for how that happens.
This line of research may eventually lead to more effective ways to use exercise to help control weight, according to the senior author, David J
Honey bees on cocaine dance more, changing ideas about the insect brain
piggy submitted, created time 2 weeks 2 days (www.eurekalert.org)
In a study that challenges current ideas about the insect brain, researchers have found that honey bees on cocaine tend to exaggerate.
Normally, foraging honey bees alert their comrades to potential food sources only when they've found high quality nectar or pollen, and only when the hive is in need. They do this by performing a dance, called a "round" or "waggle" dance, on a specialized "dance floor" in the hive. The dance gives specific instructions that help the other bees find the food
piggy submitted, created time 2 weeks 21 hours (sciencenow.sciencemag.org)
Talk about Dr. Jekyll and Mr. Hyde. Misfolded proteins known as prions cause mad cow disease and other fatal neurodegenerative illnesses. But in their properly folded form, the proteins may be important to survival, helping mice and other animals keep their sniffing skills sharp, new research shows.
Prions get the bad reputation--and the lion's share of research attention--but interest in the normal form of prion proteins is increasing
Genetic Patterning in Fruit Fly Development Identified
piggy submitted, created time 4 weeks 11 hours (www.sciencedaily.com)
No matter the species, from flies to humans, we all start the same: a single-cell fertilized egg that embarks on an incredible journey. The specifics of this journey are being uncovered at Rutgers University-Camden, where a biologist is researching how from one cell a jumble of many are able to organize and communicate, allowing life to spring forth.
According to Nir Yakoby, a recently appointed assistant professor of biology at Rutgers–Camden, his work on cell communication is a lot like genetic play dough
Solar energy hits new efficiency record
Darkfrog submitted, created time 4 weeks 2 days (www.nature.com)
The biggest problem with solar panels and solar cells, more than the expense of making them, has been that they just don't create as big of a return as fossil fuels.
Luminescent solar contractors (LSCs) look like glass panels with colored edges (although this might be artists' license). They are embedded with light-absorbing dyes to catch photons. When the photons are re-emitted, they bounce around inside the glass by total internal reflection (the same principal used in fiber optics) and eventually hit the solar cells mounted along the edges of the panel
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