ACS News Service Weekly PressPac -- Feb. 21, 2007
...ons work by targeting only a handful of vulnerable spots in a tumor, such as the DNA or hormone receptors. That limited range of targets has led scientists to seek new generations of medications that work in different ways. ARTICLE #4 FOR IMMEDIATE RELEASE "Total Synthesis, Fragmentation Studies, and Ant...'Guardian of the genome' protein found to underlie skin tanning
...ong the elderly, is the development of small, dark spots that are unrelated to sun exposure. The spots arise when groups of cells begin producing pigment in response to repeated stress or irritation of t...Researchers find suntan's 'master regulator'
...s other instances of skin darkening, including age spots and the spots that sometimes occur during pregnancy or as a side effect of certain medications, Fisher said. The...New species declared: Clouded leopard on Borneo and Sumatra
...d species, has small cloud markings, many distinct spots within the cloud markings, grayer fur, and a doubl...arge clouds on their skin with fewer, often faint, spots within the cloud markings, and they are lighter in color, with a tendency toward tawny-colored fur a...UF scientists discover new genus of frogmouth bird in Solomon Islands
...re uniform. Its speckles are larger, and the white spots on its breast and underbelly are more pronounced than on other frogmouths. Two other genera of frogmouths exist: one in southeast Asia and the other in Australia and New Guinea. The Solomon Islands Frogmouth is known to inhabit three islands: Isab...UF scientists identify cancer virus' genetic targets
...coma. "The hallmarks of Kaposis sarcoma are red spots full of blood vessels on the necks, arms and legs of patients," said Rolf Renne, Ph.D., an associate professor of molecular genetics and microbiology at the College of Medicine and a member of the UF Shands Cancer Center and the UF Genetics Institute......o insert pieces of loxP DNA randomly into numerous spots on the mouse genome. So scientists easily can breed multiple generations of mice with loxP surrounding various large stretches of DNA. Then the first part of the new method is used: The mice are bred with mice that carry the Cre gene so any large ...Rutgers, Penn researchers capture research dollars to improve prostate cancer diagnostic methods
...ure. In our testing, MRI images revealed several spots of suspicious tissue, but four expert radiologists disagreed as to which ones were cancerous, said Madabhushi. Our computer-aided techniques assign probability ratings to the spots, which help a radiologist reach a more confident answer. A physicia...Global warming is evaporating Arctic ponds, new study shows
... of surface waters in many Arctic regions, are hot spots of biodiversity, as well as habitat for many birds, insects, and other organisms, the researchers point out. The resulting ecological changes will likely cascade throughout the ecosystem. In the past, researchers like us have sometimes been accuse...New research proves single origin of humans in Africa
...to argue that modern humans originated in multiple spots around the world. We have combined our genetic data with new measurements of a large sample of skulls to show definitively that modern humans originated from a single area in Sub-saharan Africa." The research team found that genetic diversity decre...Interaction of just 2 genes governs coloration patterns in mice
...lor patterns among organisms, ranging from leopard spots to zebra stripes, that help individuals survive," says Steiner, a postdoctoral researcher in UCSD's Division of Biological Sciences. "However, we know surprisingly little about how these adaptive color patterns are generated. In this paper, we identi...