Dietary component kills bacterial cause of ulcers and stomach cancer
...nism, says Fahey. Sulforaphane can protect against chemically induced stomach cancer in mice, the research team also found, but more studies are needed to know whether it can do the same against helicobacter-induced stomach cancer and whether dietary sulforaphane, rather than pure sulforaphane, will do the tric...Argonne chemist wins national award for studies of plant energy
...g electrons in a controlled manner can be a way to chemically neutralize toxic compounds, for example. Their laboratory system uses nanocrystalline particles of metal oxides. As light pumps energy into a particle, electrons from molecules attached to the surface of the particle can move into the particle. The g...Scientist probes fossil oddity: Giant redwoods near North Pole
...million years old, Jahren says. These fossils are chemically preserved at a level you usually would expect to s...ansported very far. Jahren and co-author Sternberg chemically compared the fossil isotope levels with those found in water in contemporary precipitation patterns ...Dartmouth biologists say algae might be missing mercury link in aquatic food chain
...s lots of algae, there are more processes going on chemically which affect mercury. We want to understand why some lakes have high mercury in their fish and why some dont." The researchers will next work to complete an intensive study of four lakes, which represent high and low algal systems. The lakes were cho...New x-ray technique images cartilage, may lead to earlier diagnosis of osteoarthritis
... companies induce osteoarthritis in animals either chemically or mechanically before treating them with experimental drugs. To see if the drugs work, the animals cartilage is observed post-mortem. Now that cartilage can be imaged using DEI, pharmaceutical companies may eventually be able test the efficacy of ...Oxidative damage to eNOS by tissue peroxynitrite
The peroxynitrite anion (ONOO-) is blamed for chemically modifying a variety of proteins and lipid species under conditions of inflammation and oxidative stress. Building on their present studies of the peroxynitrite's effects on the endothelial NO synthase (eNOS), Zou et al. propose a biochemical pathway ...Ecstasy link to long-term brain damage
... It also seems likely that the way the body reacts chemically to ecstasy is important in producing adverse effects, as is the surrounding temperature, which can lead to users overheating. Adelaide's reputation as having the highest per capita death rate from ecstasy in Australia-and perhaps even the world-forms...X-ray analysis of shipwreck may help conservators save waterlogged artifacts
...nique, x-ray powder diffraction (XRD), was used to chemically identify products of oxidation on wooden surfaces. Another technique, x-ray absorption near-edge structure (XANES), allowed identification of sulfur compounds inside the wood by analysis of ground-up core samples. Yet another technique, x-ray photoel...Genetic clues for finding and treating cardiovascular disease (CVD)
...eer in CVD gene therapy. His most recent work uses chemically modified DNA, which is injected into a patients veins. Using a pressurized pump to force the chemical into the veins the procedure also expands the normal arterial pressure by 200 percent. Since the chemical is friendly to the human immune system the...Eat your veggies: Indirect anti-oxidants provide long-term protection
...hat a compound from the diet can provide powerful, chemically versatile and prolonged protection against oxidative stress may particularly impact human retinal disease." Studying a variety of cell types and oxidants in laboratory experiments, the scientists discovered that sulforaphane triggers a cellular respo...Adding vitamin C to certain drugs may help treat Alzheimers, other brain disorders
...s normal form. Using a group of mice that had been chemically induced to have convulsions, the researchers injected the normal molecule into the mice. This had no effect on their convulsions. When a vitamin C modified version of the drug was injected, convulsions were delayed, demonstrating the improved perform...January media highlights-GSA Bulletin
...o graben, which was accompanied by small scale and chemically diverse calc-alkaline volcanic eruptions. These eruptions are similar to magmatism associated with east-west extension in the inland northwest from British Columbia to Nevada from the Eocene to the present. Control of internal structure and fluid-m...Team identifies promising alternative to waste incineration
...logy Engineering is based in Virginia. "Silver II" chemically oxidizes molecules. The process operates at low temperature, is easy to control, treats most organic wastes, reduces waste volume, produces no dioxins or low-emission volumes containing polyaromatic hydrocarbons, and does not require pretreatment for...Researchers identify gene required for marking DNA as having come from the mother
...ve identified a gene, Dnmt3L, that is required for chemically marking certain parts of the mouse genome as being inherited from the mother. The gene is the first to be shown to play a role in the establishment of imprinting during egg development. Led by Dr. Timothy Bestor, professor of genetics and development...Nanoparticles in air bad news for people
...normal human lung cells to synthetic particles and chemically complex particles produced by an internal combustion engine. They discovered that the acute toxicological responses of the primed cells those that simulate human lungs that are injured or predisposed to lung conditions -- were high compared to that ...Science: nanoscale 'Trojan Horse' attacks cancer cells from within
...nerator consists of a radioactive atom of actinium chemically harnessed to an antibody that zeros in on and penetrates only specific cancer cells. Inside the cell, the actinium decays by giving off alpha particles--very small, high-energy particles that rip through the cell and destroy it. Actinium's decay prod...Researchers describe atomic-size 'sorter' that performs vital cellular function
...ein. The selectivity filter works as a sorter that chemically senses the ions as they go through the channel. When it senses an ion that should not be inside the channel, the filter forbids it to enter. The chemical principles of binding revealed in the selectivity filter bring the basic science of ion channels...Highly specific biological agents attack mechanisms of treatment resistance
...of the current study In this study, Herceptin was chemically bound to DM1 and tested against three different experimental breast cancer systems that have extra copies of HER2. In the first two, which used human breast cancer cells growing in mice, Herceptin-DM1 resulted in the complete disappearance of all tu......cteria sprayed on them, and because the coating is chemically bonded to the surface, it doesn't come off when touched or washed. The surface treatment is potentially long-lasting and capable of being scaled up to commercial production at moderate cost, being applied as a paint or coating. The goal is to make an...