Tag: "these" at biology news
Diatom genome reveals key role in biosphere's carbon cycle
...s. Scientists would like to better understand how these
organisms react to changes in sea temperatures, th...ed to plants. Diatoms, with complete disregard for these
presumed boundaries, have mixed and matched different attributes to create an incredibly successful ...
Time running out for South Asian vultures, ecologists warn
...g is the main cause - possibly the only cause - of these
vulture declines, which are among the most rapid e...y wild bird. Time is running out if we are to save these
species. Governments, drug companies, vets, livestock owners and conservationists should act togethe...
NIH awards new $14.5 million, five-year grant to the Scripps Research Institute
...MR), and electron microscopy. Scientists have used these
techniques to solve the structures of tens of thou...roscope) to 1,000,000 times. The final products of these
electron images are representations of the biological structures at near-atomic resolutions -- up to...
Studying the chemistry of drugs in wastewater
...y to build up in the body. It is not known whether these
reaction products pose any health or environmental hazards. "We have unique measurement capabilities here at NIST, which help to confirm the presence of products that are difficult to identify," says chemist William MacCrehan. Measurement techniques ...
New therapy for specific form of leukemia
...found small circular DNA fragments in the cells of these
patients that contain the ABL1 cancer gene. ABL1 a...l treatment, with chemotherapy, cures over half of these
children. ABL1 plays a prominent role in several forms of leukemia ABL1 is a kinase, a type of pro...
DNA sequence controls expression of gene involved in cancer
...RNA constructs with deletions around the ARE. From these
constructs, the investigators identified a region of 30 nucleotides outside the ARE that destabilizes bcl-2 mRNA both in the absence and in the presence of the ARE. Because the region is composed mostly of cytosine and adenine repeats, they named it ...
Penn receives grant for initiative to help understand genes' effects on medications
...roving health and preventing disease in Americans, these
medications do not work as hoped in everyone, and ... a complete understanding of the genetic basis for these
sometimes unpredictable responses to medications, as well as the appropriate application of this inf...
US researchers show cottonseed drug is cancer treatment booster
...lans in Brazil in the 1990s to market the drug but these
were shelved. In 1998 the World Health Organisation said that research on its use for contraception should be abandoned. Gossypol is not the first drug investigated as a contraceptive to find a potential role in treating cancer. Tamoxifen was first d...
Commandeering cellular machinery: recognition mechanism to detect small molecules
...ortant pharmaceutical compounds. "We are hijacking these
nuclear receptors for a new set of purposes," expl... process that results in gene expression. Because these
receptors play a vital role in controlling cellular response to these
small molecules, scientists ha...
National Science Foundation awards $2 million grant to UC Riverside
...en deposition has increased," Allen said. "Some of these
weeds have been present for the past 100 years, but they are just now becoming dense, and they are replacing native vegetation." The weeds are primarily from the Mediterranean region, and include annual grasses and flowering plants such as stork's bi...
Amgen investigational therapy, AMG 162, increased bone mineral density with twice yearly injection
...The medical community should be very encouraged by these
data that suggest AMG 162, when administered twice a year, may offer a promising alternative for the treatment of osteoporosis." "With the development of AMG 162, Amgen scientists have validated an entirely new pathway and novel mechanism of action f...
An embryonic stem cell model for Parkinson's disease
...he disease mechanism of Parkinson's. Working with these
cells, the researchers created dopamine neurons deficient in DJ-1, a gene mutated in an inherited form of Parkinson's. They report that DJ-1-deficient cells -- and especially DJ-1-deficient dopamine neurons -- display heightened sensitivity to oxidat...
Endangered frogs coexist with fungus once thought fatal
... with little effect on their populations. While these
findings do not exonerate the fungus as the agent of mass declines, they can rule out the possibility that the fungus caused the decline, then vanished from the area, allowing frog populations to recover. Although it's possible that B. dendrobatidis...
Columbia University scientist wins 2004 Nobel Prize
...avior in a marine snail, and molecular analysis of these
genes suggests how diverse behavioral patterns may be encoded in the genetic material and inherited from parent to offspring. ...
A treatment, not a cure: Calcium silicate neutralizes an acidic stream
...ation, into the atmosphere. Persistent exposure to these
pollutants, which return to Earth in rain, snow, sleet, hail and fog, can compromise the health of aquatic ecosystems. In a recent Restoration Ecology paper, Institute of Ecosystem Studies President and Director Dr. Gene E. Likens, with colleagues, ...
Fungus knocks a frog down but not out, raising questions about amphibian declines
...d chytrid on apparently healthy frogs, and some of these
frogs were recaptured later," Retallick said. "Ou...persist for three years, but we don't know whether these
frogs coexist with the fungus during that time, or clear it and then live as normal healthy frogs. U...
HHMI researchers Richard Axel and Linda Buck win 2004 Nobel Prize
...in bath of mucus at the cell surface. Somewhere on these
cilia, scientists were convinced, there must be re...ptors?" And second, how does the brain make use of these
responses to discriminate between odors? The string of discoveries that totally changed the study o...
How roots control plant shoots
...been known about how genes active in roots control these
chemical signals, Sieburth says. The new study reveals part of the answer, and indicates a previously unknown plant hormone a chemical probably made from carotenoids is involved. Carotenoids include well-known substances such as beta carotene in ...
Research team develops nonhuman primate model of smallpox infection
...ene expression patterns of hemorrhagic smallpox in these
animals. Specifically, they documented fluctuation...he technical accomplishments, what's notable about these
studies is the collaboration between multiple agencies--including the Department of Defense and the ...
New Stanford center probes nanoscale material
...ology, and we're excited to see what possibilities these
tools will open up," Goldhaber-Gordon said. The probes will enhance the capabilities of the nanotechnology community to observe, manipulate, measure, image and control nanoscale phenomena. Researchers hope to develop probes with revolutionary capabil...
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