Laser surgery halts chest pain over the long-term; scientists also looking into non-surgical TMR
...ed through other methods. Sixty-three percent had unstable angina, 75 percent had suffered at least one heart attack, 93 percent had undergone one bypass surgery, 36 percent had undergone at least one angioplasty, 67 percent had angina class IV and 33 percent had class III. The higher the angina class, the ...Insects caught in a nutrient-poor food web
...fast-growing insect on land will be susceptible to unstable population fluctuations or even extinction, Elser says. As you grow faster, your nutrient requirements go up, but your environment may not be presenting those nutrients at levels that can sustain you. Such an organism would suffer from severe food qu...7,000 feet under the Sea: LSU scientists take geology to great depths
...er warms or as pressure decreases, hydrates become unstable and break down, releasing the gas in a process tha...arming, increasing amounts of hydrates will become unstable and release methane. The release of gas would contribute to further global warming, and a dangerous...February media highlights: Geology and GSA today
... very strong tidal heating) naturally lead to such unstable topography - primarily by creating very large conf... create a thick crust, but volcanic conditions are unstable and lead to breakup and tilting of this crust and thus towering mountains. This helps explain why ......me sensitive to drugs, something expected from the unstable nature of aneuploidy, he said....UCB-Bioproducts to provide active pharmaceutical ingredient for FDA approved angiomax (bivalirudin)
...nticoagulant initially indicated for patients with unstable angina undergoing percutaneous transluminal coronary angioplasty (PTCA), which received U.S. Food and Drug Administration (FDA) approval in December 2000. As part of their collaboration with The Medicines Company, UCB-Bio designed a uniquely scale...Wistar scientists add difficult-to-sequence stretches to human genome data
...t yet connected to the working draft sequence were unstable in both yeast and bacteria, preventing the scientists from cloning and analyzing them.......ngineered a mutation in the GFP gene that produces unstable proteins, which break down rapidly inside the prot...nes were inserted into the kidney cells, producing unstable proteins that glowed green but only when they remained intact. When a GFP molecule was chopped into...International scientists probe unsolved puzzles of the Earth and beyond at "Earth System Processes"
...He will further argue that since this situation is unstable on Venus today (i.e., every so often Venus undergoes a cataclysmic resurfacing), early Earth did the same. Grant M. Young, Department of Earth Sciences at the University of Western Ontario, explores the role of plate tectonics in bringing about drama...Tropical glaciers formed while earth was giant snowball
...de: instead, the ice-reflectivity feedback becomes unstable and the system collapses rapidly to a snowball Earth with all oceans ice covered." The researchers adjusted a global climate model, GENESIS, to the coldest point just before the collapse and used climate outputs of temperature and precipitation t...Amazon rainforest could be unsustainable within a decade
...er rate, and it creates the potential for a highly unstable rainforest system. There are those who espouse preserving small portions of the rainforest, but Alcock said damage to the overall system would probably limit the rain necessary to do that. Less rain could also mean more forest fires, further thr...Science researchers report 'extremely unstable' gene expression in cloned mice
...ed from embryonic stem cells, as well as extremely unstable gene expression in the stem cells themselves, may ...ells cultured for clinical applications will be as unstable as that of mouse embryonic stem cells. Jaenisch emphasized, however, that the unstable nature of the...New study shows normal-looking clones may be abnormal
...e donor ES cells, which they found to be extremely unstable in culture. As they divide in culture, these cells lose the tags that tell an imprinted gene to be either turned on or off during development. The researchers found that even clones made from sister stem cells had differences in their gene expressio......ubstance, these receptors lose their shape, become unstable and are destroyed. Cholesterol's stiffening quality is actually responsible for the name "lipid raft." This fatty material stiffens the lipid soup, and subregions then appear as little boats or rafts floating in the more liquid components of the memb...Positive attitude is best prevention against heart disease
...art "event" such as sudden death, heart attack or unstable chest pain that required surgery during an average seven-and-a-half-year period. This result was seen among all participants regardless of age, race or sex. Researchers observed the power of positive thinking even after adjusting for traditional r...New generation of leaders in cancer research honored
...d on. Cells unable to sense damage are genetically unstable and cancer prone. "My hope is that once we fully understand this damage-recognition pathway, we'll be able to exploit the vulnerability of cells that don't have it and develop drug therapies to target those cells," Dr. Elledge said. Dr. Elledge, who ...Scientists tackle international environmental problem ballast water
...ips are designed to carry heavy cargoes and can be unstable when empty so they take in water as ballast more than 10 billion tonnes are transported by shipping activities annually. But discharging ballast water at port is illegal in some countries, as this releases thousands of foreign marine plants and ani...Potato technology may help move mail
...ves to a standard oxygen molecule. This creates an unstable and temporary form of oxygen - ozone - that carrie...gen atoms instead of the standard two. The highly unstable nature of ozone is both its bane and balm. The instability causes the extra oxygen atom to want to a...New test offers hope of easy and affordable screening for hereditary breast cancer genes
...random in all cancers (because genetic material is unstable in cancer), and so there is always a background level of LOH found in sporadic (i.e. non-hereditary) cancers. The Nottingham team knew that LOH can arise randomly in sporadic breast cancers, but they proposed that if the same LOH was detected in the...Epstein-Barr virus mechanism for long-term survival discovered
...ssociated with EBV, the latent virus genome became unstable and was eventually lost from the cell. A report on the research appears in the March issue of Molecular Cell, to be published March 29. The finding was particularly surprising because the structure of the virus genome and the human genome is so diff...