Tumor Suppressor Gene Located In Liver Cancer Cells
...by M6P/IGF2r is an attractive target because it is present on the cell surface and in the plasma, Jirtle said...st studies showing that the protein was abundantly present in normal liver cells, but nearly absent in cancer cells, strengthened their suspicion. In research ...Duke Geologists Explore Alternative Way To Measure Ice Age Sea Bottom Temperatures
...e ratios of two forms -- or isotopes -- of oxygen present in other fossilized shell-bearing marine organisms...he study, Dwyer said that more oxygen 16 is indeed present in warmer seawater, whereas oxygen 18 is more abundant in colder seawater. That's because the lighte...Computer Program For Quicker, More Detailed Mapping
...ce." The Stanford team that developed Mapper will present the new method, thisweek, along with the maps it has generated, at the Genome Mapping and Sequencingmeeting at Cold Spring Harbor, N.Y., May 8-12. To get an idea of the challenge confronting gene mappers, imagine constructinga map of the world knowi...Transgenic Rice Plants Resist Insects, Drought And Salt Damage
...nase inhibitor has no effect on humans, and it is present in raw the form of a related plant -- tomatoes. Nor are insects themselves likely to ever develop resistance to the proteinase inhibitor, as they eventually do to many toxins and chemical pesticides, because the protein has a different type of actio...DNA Techniques Allow Scientists To Become Pollution Detectives.
...to antibiotics and by testing its DNA. "E. coli is present in the digestive tracts of all warm-bloodedanimals," said Mark Tamplin, a professor of home economics atUF/IFAS. "By testing the E. coli (present in fecal matter) forantibiotic resistance and looking at the DNA chains, we can tellif it is human pollu...Core Spins Faster Than Earth, Scientists Find
...ion years, the innercore has grown steadily to its present diameter of 1,500 miles.(The inner and outer core together are 4,350 miles wide and theEarth's diameter is about 7,900 miles.) The electrical currentsand convecting movements within the Earth's liquid core generatethe planet's powerful magnetic field...Photosystem I -- An Intermediate Step -- May Not Be Necessary For Plants
...ut photosynthesis; it simply demonstrates that our present knowledge is inadequate to explain this surprising observation," he said....Humble Pocket Gophers Shed Light On The Genetic Fortitude Of Cheetahs
...ect with other species." Sanjayan and Crooks will present their work at a joint meeting of the Ecological So... and their survival in the wild. Team members will present early results at the August meeting....Protein Glitch May Be Early Problem In Inherited Alzheimer's
... to the their late 50s. Because presenilin is present only at very low levels, Sisodia notes, it's unlikely to be directly causing the widespread damage to nerve cells seen in FAD, but it may interfere with other proteins that could. Like dominoes falling, a change in presenilin sets off a chain reactio...Virginia Tech Researchers Receive Patent For Rapid Virus Detection Technology
...n of water. Ifviruses able to infect E. coli are present in a water sample,then its host, E. coli must also be present. "An advantage of the rapid virustest is that viruses are usually live longer in water samplesthan bacterial cells, thus presence of virus can indicate previousfecal contamination of w...Nitric Oxide May Hold Key To First Treatment For Deadly Form Of Malaria, Duke Scientists Report
...xic in excess, in balance by sensing how muchNO is present and turning genes on and off to keep NO in equilibrium. Ifthis equilibrium is upset, Stamler theorizes, it may lead to a number ofdiseases that have recently been associated with NO, including cancer, stroke,hardening of heart arteries, infectious d...Nitric Oxide Found To Control Cells By Turning On Genes; Suggests New Role In Health And Disease
...xic in excess, in balance by sensing how muchNO is present and turning genes on and off to keep NO in equilibrium. Ifthis equilibrium is upset, Stamler theorizes, it may lead to a number ofdiseases that have recently been associated with NO, including cancer, stroke,hardening of heart arteries, infectious d...Newly Discovered Bacteria Produce Magnetic Material
...er and drilling mud; the Taylorsvillebacteria were present in subsurface shale and sandstones. The anaerobic bacteria convert food to energy and waste through an electrontransfer process typical of respiration, rather than fermentation. Just ashumans get rid of electrons by forming and exhaling carbon dioxid...Six-Year Drilling Project to Uncover One Million Years of Earth History
... can circulate long distances through porous rocks present at depths of 3,000 feet beneath the surface of the island....NCAR Scientist Models Earth's Climate and Vegetation Patterns At Last Glacial Peak
...logical Society of America in Denver. These models present a world blanketed by massive ice sheets over Canada and Eurasia, with tundra covering much of Europe and North America as the Sahara Desert crept southward toward central Africa. Rain forests existed in South America and Africa, as now, but there wer...Scientists Identify Retrovirus-Like Components In Corn Genome
...hout the genome. "We knew that this mobile DNA was present to some extent in all genomes, including humans, b...st doesn't want them." Because this type of DNA is present and highly repeated in many species, Bennetzen says such elements may account for a large percentage...Impact of Meteorites, Drop in Sea Level Caused Mass Extinctions 65 Million Years Ago
...of the University of Washington in Seattle -- also present evidence that other factors, including a drop in s...known as the Cretaceous period. Marshall and Ward present evidence demonstrating that a combination of factors caused the mass extinctions. Marshall a...Plants Have Future As Environmental Clean-Up Agents
...ans bacteria or fungi-emphasizing plants which are present inthe root zone." In essence, the vegetation serv...removed," Davis said. "It really depends on what's present there." In either case, using plant-based bioremediation is cheaper thenmore traditional methods of...Two Long-sought Diabetes Gene Found
...pathway first identified in cells of the liver but present in other cells including those of the kidney and intestine. This pathway was not considered to be important in the insulin-secreting cells of the pancreas and thus was overlooked in the search for diabetes genes. There are other genes in this pathway...New Sensor Provides First Instant Test For Toxic E. coli Organism
... can techniciansascertain whether the bacteria are present (with the use of a variety of toolsranging from mi... technology to multiply theamount of bacterial DNA present in a sample to detectable levels. Several hours must pass, however, before results can be obtained. ...