Tumor Suppressor Gene Located In Liver Cancer Cells
...omes, a part of the cellular digestive system that breaks down proteins into simpler compounds. Because the receptor is involved both in switching on a growth inhibitor and inactivating a growth factor, the researchers hypothesized that losing it might well predispose a cell to cancerous growth. Their past...Children Become Gorillas In VR Zoo
As a soft breeze breaks through the springtime heat at Zoo Atlanta,a young female gorilla's mind turns to troublemaking. She heads toward alarge silverback male resting in the shade of an immense oak tree. At first, he simply glares at the youngster as she playfully lunges...Researchers Find How Disease-resistant Plants Recognize Bacteria
...disease-causing microbe evolves and the resistance breaks down. By learning how the plants and microbes recognize one another, we hope to create crop plants that have broader, more stable resistance." According to Martin, the findings will have wide application. "It turns out that plants resist diverse path...Project Shows Native Bacteria Can Destroy Widespread Pollutant In Groundwater
...st item in the process is hydrogen peroxide, which breaks down in the water to provide the oxygen that the bacteria need to attack the compound. Although in situ bioremediation is simple in principle, it is considerably more difficult to put into practice. The Edwards project is the culmination of more th...Condom Use In Thailand Dramatically Cuts HIV Infection
...tor forHIV infections, says Celentano. They create breaks in the skin in the genitalarea, allowing HIV to invade the body more easily, and increase the number ofimmune system cells called macrophages and T cells, which are the preferredtargets of HIV. T cells serve as "factories" that produce more of the v...New Imaging Technique Pinpoints Dead Heart Muscle
...kinase, a heart enzymereleased into the blood that breaks down creatine. Moreover, currently availablecreatine kinase tests on blood samples can't identify the location or reliablymeasure the extent of heart muscle damage. In the new metabolic test, MRS, guided by MRI, measures creatine level...Sex Differences In Heart Disease May Be Due To Enzyme That Breaks Down Fat
... stored in muscle or fat cells. Lipoprotein lipase breaks down the VLDL into intermediate-density lipoprotein. Hepatic lipase is the enzyme that breaks the intermediate-density particles downinto LDL, which carries 60 to 80 percent of the cholesterol i...Mathematics Reveals New Pattern Of Brain Cell Activity
...s in their brain isn’t very synchronized. It breaks up intodifferent groups, each firing in a different pattern. But as the personfalls deeper into sleep, the patterns gradually grow more and more synchronized. We’re trying to understand how that happens.” Terman speculated as to why smoo...Small-Scale Fires Key To Understanding Forest Structure
...pe, headwaters andnorth-facing slope. Natural fire breaks separate these areas and the historicfrequency and severity of fires differs in each. The south-facing slope is sunny and dry and includes abundant pines. Itlast burned in 1926. The area averaged a fire about every 9 years. Thenorth-facing s...Electron Accelerator Provides Unique Proof Of Gene Repair Process In Living Cells
...that the other possibility would have been for DNA breaks to migrate to specialized nucleus compartments, as happens with some genetic functions. "This implies that DNA repair proteins must be summoned to the damage site in order to effect the repair." Experiments to test the signalling implication are unde...Two Environmental Articles: Deformed Frogs & Dioxin In Old Soil
... microorganisms, La Clair found that S-methoprene breaks upinto other products that dramatically alter embryo development. By addingminute amounts of these degradation products to developing embryos of theAfrican clawed frog, Xenospus laevis, the Scripps group found that the embryodeveloped into a juvenil...... arrange the CRADA.Under such conditions, the skin breaks down in minutes and necrosis--thelocalized death of living tissue--can occur. Affected areas can go fromnecrotic to gangrenous, extend from skin to bone, and require amputation of theaffected part. Such situations are avoided in normal bodies by the ...Genetic Screening May Be Tool For Selecting Cancer Treatment, Research Suggests
...ers. One of BRCA2's jobs is to help repair breaks in the double strand of DNAinside cells, earlier a...nts and radiation, work by initiatingdouble-strand breaks in DNA. Other researchers had suggested that the effect of BRCA2 ondouble-strand break repai...New Alzheimer's-Associated Mutation May Provide Key To Disease Process
... involved in a verysensitive, balanced system that breaks down A-beta and harmlessly removes itfrom brain cells. "We have a theory that LRP sits in the synapses, the junctions where brain cellscommunicate with each other, and works with A2M to keep A-beta fromaccumulating," he continues. "If a defective ...Dismantling Dangerous Genetic Codes With A Faster, More Flexible RNA Mimic
...ic base-pair sequences, recognize the HIV mRNA and breaks the mRNAat certain base pairs. This blocks the mRNA from acting as a template forprotein production. A key recent change to Bashkin's ribozyme mimics is the incorporation of a smallchemical fragment near the catalyst that replaces an actual DNA base...System Offers Breath Of Relief To Workers
...to the body, where it goes within the body, how it breaks downand how it leaves the body. The monitoring system improves on existing industrial hygiene tools inseveral ways. Its relatively small size -- approximately 70 pounds -- allows itto be used on-site or taken to an emergency situation, such ...Beaver, Architects To The Birds
...e abandonmentstage, the dam, no longer maintained, breaks and the water level decreases. Herbaceous and shrubby cover characterize this stage. All six of the Commonwealth's common breading waterfowl were found onbeaver ponds in Pennsylvania -Canada goose, wood duck, green winged teal,American black ...Birds Of A Feather: The Physics Of Flocks
...t chilling thematerial below its Curie temperature breaks the symmetry, as the atomsspontaneously choose a preferred direction in which to line up their magnets. An analogous phenomenon, Vicsek realized, happened to each colony of bacteria. At some point while the colony was growing, the members chose to m...Gene Therapy In A Liquid May Lead To Quicker, Easier Methods For Treating Disease
...alactosidase gene--whichencodes for an enzyme that breaks down lactose--into an adeno-associated virusvector. They then gave this orally through a special tube to lactose-intolerantrats. The gene incorporated into the cells lining the rats' gastrointestinaltract, allowing them to break down lactose. ...Scientists Finger A Molecular Kingpin In Body's Response To Cigarettes
... tissue. Specifically, theteam measured chromosome breaks in blood cells created in the bonemarrow. The team plans to study damage in other tissues, such asthe liver and lungs. Gasiewicz also says that longer-term studiesto look for some of the ultimate products of damaged genes --tumors -- are necessary. ...