Species detectives track unseen evolution
...based at J.W. Goethe-Universitt in Frankfurt found evidence for cryptic species evenly spread among all major branches of the animal kingdom. They also found that cryptic species were just as likely to be found in all biogeographical regions. The findings go against received wisdom that the insect or reptil...Sequencing method yields fuller picture
...f their analysis, the researchers added to growing evidence that so-called junk DNA may have a function after all. Recent studies have shown that junk DNA expresses proteins which may regulate gene function, and that sections of junk DNA have been highly conserved during evolution, suggesting that they pla...Foxes get frisky in the far north
...l breeding, Canadian researchers have gathered DNA evidence from adult foxes and their offspring that proves t...usive, with one litter providing the first genetic evidence of polyandry (females having multiple male mates at one time) with multiple paternity. Lindsey Car...Losing weight after pregnancy -- diet and exercise better than diet alone
Preliminary evidence suggests that a combination of dieting and exercise is a more effective way of losing weight after pregnancy than dieting alone, concludes a Cochrane Systematic Review. Women naturally gain weight during pregnancy and many gradually lose it afterwa...American Chemical Society's Weekly PressPac -- July 11, 2007
...Cs) falls short of reality, chemists are reporting evidence that RBCs are key participants in a communication system among cells in the bloodstream. Messaging between RBCs and platelets (blood components that cause clotting) they say, could explain the effects of a drug suggested for use in preventing heart a...Clues to future evolution of HIV come from African green monkeys
... wanted to know more. "I wasn't convinced by the evidence out there that these monkeys were infected before ... Worobey said, "Some of the trends we see give new evidence on how quickly or slowly these changes take place." Citing some laboratory research that suggests ...Manchester University helps with pharaoh DNA analysis
...ng to the tooth as evidence. The preliminary DNA evidence to be included in a Discovery Channel documentary being broadcast in the United States this Sunday suggests that the mummy is indeed the great queen Hatshepsut. The team is now planning to carry out more tests on the 40 remaining royal mummies, i...The origin of perennial water-ice at the South Pole of Mars
...llion-year old layered terrains and provide strong evidence for a recent glacial activity. However, only now a realistic explanation for the age of the deposits and the mechanism of their formation could finally be suggested. This was achieved thanks to the OMEGA mapping and characterisation of these ice dep...Serica scientists win AOSSM Award for ACL (knee) tissue regeneration in preclinical study
... the knee joint. This study provides the first evidence of sustainable ACL tissue engineering, said Gregory H. Altman, PhD, President and CEO, Serica Technologies, and senior author of the paper. Through advances in biomedical engineering, we now have a more thorough understanding of the bodys own capaci...Nodal status is best predictor of outcome after neoadjuvant therapy for esophageal cancer
The number of lymph nodes that contain evidence of cancer is the best predictor of the effectivene... 50% of patients survive for 3 years. However, the evidence for which additional therapies work best is confusing and conflicting. What is more, although it is ...Journal of Alzheimer's Disease achieves significant impact factor
...ted, We are extremely pleased to have quantitative evidence of the high regard in which the Journal of Alzheimers Disease is held by researchers and clinicians working in AD and the extent to which JADs articles are cited throughout the medical and scientific literature. The dedication of the entire editorial...EPA foregoes opportunity to improve nanotechnology oversight
...that EPAs approach ignores the scientific research evidence to date that different nanostructures with the same molecular identity present different hazards. Nanotechnology is a rapidly growing sector of the economy that will represent an estimated $2.6 trillion in manufactured goods by 2014, or about 15 perc...Cells take risks with their identities
...s or stops producing a particular protein. But new evidence suggests that this model is too simple and that our genes are more ready for action than previously thought. Scientists in the lab of Whitehead Member Richard Young have discovered that many human genes hover between on and off in any given cell. A...CU researchers discover evidence of very recent human adaptation
...enetic changes. For example, the researchers found evidence of recent selection on skin pigmentation genes, pr... the new environments. However, the study found no evidence of differences in genes that control brain development among the various geographical groups, as som...Research team discovers gallstone gene
... families. In particular, studies of twins provide evidence of a genetic component that boosts risk levels. "We reckon that environmental influences, like the wrong diet, are 70 to 80 per cent responsible for the disorder," explains Lammert who works in the university hospital's Department I headed by Profess...White blood cells are picky about sugar
...te one pathogen from another. Rubin-Bejerano had evidence that neutrophils respond to beta-glucan. After coating tiny beads with a variety of substances (including beta-1,3-glucan and beta-1,6-glucan), she exposed them to the neutrophils and was surprised to see a striking difference in their response to th...Researchers discover human embryonic stem cells are the ultimate perpetual fuel cell
...ector Mick Bhatia and colleagues provide the first evidence that human ES cells have the unique ability to generate human-ES-cell-derived fibroblast-like niche cells (hdFs) in vitro despite removal from their in vivo microenvironment. These hdFs then provide a continuous source of supportive proteins, includi...Kaposi sarcoma arises independently from multiple cells
...ntain human herpesvirus 8. The researchers found evidence that nearly 80% of the tumors arose independently from multiple cells. They concluded that few Kaposi sarcoma tumors originate from a single cell and that Kaposi sarcoma, especially in its advanced form, is not true metastatic cancer. In an accomp...FDA finds no strong link between tomatoes and reduced cancer risk
...Administration (FDA) review has found only limited evidence for an association between eating tomatoes and a d...agencys November 2005 evaluation of the scientific evidence linking tomatoes or tomato-based foods, lycopene, and reduced cancer risk. Their review found no ...Researchers probe risks, benefits of folic acid fortification
...ues note, there is a compelling body of scientific evidence suggesting that habitually high intakes of dietary folate are protective against colorectal cancer. Mason explains, however, that There are several reasons why we may have inadvertently created the opposite effect with folic acid fortification. First...