Clocking in and out of gene expression
...r College of Medicine researchers in a report that appears in the journal Cell today. We have long known that our bodies live by a daily and monthly and even yearly clock and that cells have clocks as well, said Dr. Bert OMalley, chair of molecular and cellular biology at BCM and senior author of this repor...Small, self-controlled planes combine plant pathology and engineering
... the species we collected with our autonomous UAVs appears to be a bacterium known only to exist in a cavern in Arizona, he said. What was that bacterium doing 100 meters above Kentland Farm" In many of our other samples, we have found organisms that have never been cultured before. Some of these microbes ma...Human activities increasing carbon sequestration in forests
...sult is a highly variable forest carbon cycle that appears to be heavily influenced by the footprint of humans, one way or another. Its a complicated process with powerful driving forces that were poorly understood, said scientists from 10 institutions in the U.S., Canada and Europe. Until this report, res...Plants recognize their siblings, biologists discover
...ting when potted with their siblings. The study appears today in the Royal Society journal Biology Letters. The ability to recognize and favour kin is common in animals, but this is the first time it has been shown in plants said Susan Dudley, associate professor of biology at McMaster University in Ham...Herpes virus hijacks DNA repair process
...p novel strategies to treat infection." The paper appears online this week in Cell Host & Microbe. Scientists have known for some time that viral infection of cells activates the DNA damage response. But researchers had assumed that this activation occurred because repair mechanisms were mistaking replicati...'Wurst' ensures that the respiratory system works
...red transmembrane protein called "Wurst" (sausage) appears to play a decisive role in breathing possibly in ...aw water from their environment by diffusion. This appears to be the way in which the tracheae are drained. However, if the "Wurst" protein is defective, the w...Lung and bladder cancer deaths continue decades after arsenic exposure
Arsenic exposure appears to continue causing lung and bladder cancer deaths years after exposure ends, according to a study published online June 12 in the Journal of the National Cancer Institute . Arsenic is a known cause of lung and bladder cancer, but researchers dont...Other highlights in JNCI, June 12
...tural compound known to have antitumor properties, appears to disrupt the function of heat shock protein 90 (Hsp90), which cancer cells may need to grow. Heat shock proteins are expressed in response to higher temperatures and help prevent disruptions in protein folding. Hsp90, in particular, is often ove...Breakthrough developments in rheumatoid arthritis reported
...oimmune diseases like rheumatoid arthritis, PTPN22 appears to put people at higher risk of a wayward T-cell response. The group has since gone on to use modern genetic methods to search for single nucleotide polymorphisms, or SNPs, to identify players that have fallen under the radar of older methods. Th...'Lucky 13' as new gene discovery offers further hope for childhood blindness
...me Trust and local charity Yorkshire Eye Research, appears in this month's edition of the journal Nature Genetics. The newly-discovered gene, LCA5, is involved in the production of lebercilin, an essential component of photoreceptors in the retina. Lebercilin is found in other tissues as part of the cilia,...Undergraduate research shows leaderless honeybee organizing
...hat she does not exactly rule. Instead, the colony appears to be controlled by the anonymous consensus of the... where to find a food source, the vibration signal appears to be a more general, multi-purpose form of communication. Schneider has concluded that this signal,...Genetic defect links respiratory disease and congenital heart disease
...rsus one in 10,000), the study found. The research appears in the June5, 2007, issue of the journal Circulation. "This should spur physicians treating patients with congenital heart disease to be more vigilant about testing for and treating respiratory defects," said Dr. Michael R. Knowles, professor of pu...Salvage logging, replanting increased biscuit fire severity
...ontrast, natural regeneration of forests, he said, appears to result in at least slightly, and sometimes significantly less risk of severe future fires. This could be because the regenerating trees are more patchy, have open gaps, more species diversity, or other factors. But the study showed that total cons...Scientists propose the kind of chemistry that led to life
... well-known chemical and physical laws. The work appears online this week in The Proceedings of the National Academy of Sciences. ( http://www.pnas.org/cgi/content/abstract/0703522104v1 ) The basic idea is that simple principles of chemical interactions allow for a kind of natural selection on a micro s...Agonized death throes probable cause of open-mouthed, head-back pose of many dino fossils
... or suspected to have had high metabolic rates, it appears to be a good indicator that the animal was warm blooded. Animals with lower metabolic rates, such as crocodiles and lizards, use less oxygen and so might have been less traumatically affected by hypoxia during death throes, Padian said. Padian ackn...Hormone that signals fullness also curbs fast food consumption and tendency to binge eat
... and improves control of eating in obese subjects, appears in the online edition of the American Journal of P...every day. While this research is promising, it appears pramlintide will produce only modest weight loss, probably around 8%, before reaching a plateau. Amy...Genetic 'fellow traveler' discovered in Alzheimer's
...hers identified the gene, called GAB2, as one that appears to influence the risk of Alzheimers in people with a version of a gene called APOE, which is the best established genetic risk factor for LOAD. LOAD is expected to become an overwhelming medical problem in the next few decades as the population age...Neuronal activity gives clues to working memory
...t was often present at inappropriate times. "It appears that the inhibitory cells are not key or even required to generate persistent firing," the researcher says. "Instead, they send a message from one group to the other that helps coordinate two sides: the role of inhibition in this system is to make su...Envisat captures first image of Sargassum from space
...estern Gulf of Mexico in the summer of 2005. "This appears to be the first report of a satellite image of Sargassum," Gower said. "It is usually associated with the area of the North Atlantic known as the Sargasso Sea after the Sargassum encountered there by early explorers. Our observations of Sargassum lin......enabled researchers to identify a common gene that appears to increase a persons risk for developing Alzheimers disease. The finding, announced today by researchers at the Translational Genomics Research Institute (TGen), Banner Alzheimers Institute, Kronos Science Laboratory and their collaborative partners...