Fast Food Can Speed Up Clogging Of The Arteries
...ct with "free radicals," whichare highly unstable, reactive oxygen molecules that circulate in the blood andda...terol -- fat particles that have beencombined with reactive oxygen -- plays a major role in the formation ofartery-blocking plaque. "Dietary oxidized ch......ation platinum protecting agents is thepresence of reactive sulfur-containing chemical groups that can interac...n platinumprotecting compounds that are not highly reactive in the plasma, yet can undergoconversion inside normal cells to form a highly reactive compound that......tep-rather than a series of reactions-from several reactive components that"click" together easily. "We're looking for unknown, easy-to-make structuresthat act in new ways," he states. "This is not conventional combinatorial chemistry," Sharpless adds. "We want tomake drugs and other useful materials from muc...Chemists Discover That Aerosol Clusters Play Larger Role In Generation Of Air Pollution
...ng withan organic molecule to create an acid and a reactive carcinogen." He noted that while atmospheric reactions of nitric oxide with oxygen and waterare well-known, the UB research shows that new molecules, such as volatileorganic compounds, may make nitric oxide an even more harmful pollutant. "This is a ...... or cell damage caused by molecules that arehighly reactive forms of oxygen such as free radicals and peroxides. Thiscoupled with the discovery, about 10 years ago, that cADPR is involved in theregulation of calcium ions, led the Jacobson research team to hypothesize thatcADPR may be a key component in cell ...Biological Markers Found That Correlate To Esophageal Cancer Treatment Success
...on kills cells by forming oxygen radicals-- highly reactive oxygen atoms that damage DNA. GST-pi reduces these oxygenatoms so that they are no longer reactive. The 84 patients with GST-pi survivedan average of 21 months, while those without it survived 47 months on average. The third implicated marker was...New Procedure Makes A Successful Transplant Possible
...f Medicine. High PRA, which stands for "high panel reactive antibody," affects at least 20percent of people on...around that barrier by cleansing theirblood of the reactive antibodies," says Dr. Bartlett. For the procedure, the patients underwent plasmapheresis. They were ...Stress Patterns In Adolescence Differ Between Boys And Girls
...sassociated with depression and [they] may be more reactive to these types ofstress than boys."...Photodynamic therapy reduces risk of vision loss in some macular degeneration patients
..., but itactivates the drug, whichproduces a toxic, reactive form of oxygen that can damage the diseased tissueand blood vessels. "This is not a cure, nor does it apply to those who already have lostsignificant vision, butit does appear to be effective in preventing further vision loss for somepatients wh...New tests for blood clots, lung cancer use NIDCR patented technology
...etic peptide chain. Properly placed, these highly reactive compoundspermit peptides to be linked in a "head-t...mation of cyclic peptides or peptide polymers. The reactive groups alsoprovide sites for attaching various other materials, such as radioactivemolecules. This p...... overAntarctica, for example - were considered too reactive to be useful in the laboratory. Butadventurous researchers like Curran have found conditions and strategies to channel that"hyperreactivity" in useful directions. For example, Curran's team has been working for the past 10 years on compounds derived ...Parenting, stress and your child's risk for alcoholism
...ility, they were more fearful, they were much more reactive to the stimuli around them, and they did not have an adult around to calm them down. So what you have is a monkey who is chronically anxious and chronically fearful." Adult absence during infancy appears to have had other long-term psychobiological ...Kidney transplant proposal reduces wait from 24 to 14 months, improves equity for blacks & women
...han Caucasians, and they score high rates of panel reactive antibodies, known as pra. A high pra rate shows a likelihood that the recipient will reject the donated organ. Under the current system, African-American are nevertheless more likely to receive a transplant than Caucasians because they are younger an...Irvine researcher receives national award
...expected way, Van Vranken said. As one of the most reactive of the 20 protein building blocks, or amino acids, tryptophan will crosslink with itself within a peptide. It will also react with sugar molecules. Van Vranken realized that tryptophan's structural features were remarkably similar to those of compoun...Cars and bridges that almost never rust
...g a metal or plating it with zinc or another, more reactive metal. Zinc, which is a good electron donor, reacts with oxygen, leaving the metal underneath unaffected. But there is a limit to how long paint and zinc coatings can last. Polyaniline works differently. Instead of creating a physical barrier, i...NIH awards grant to MetaPhore Pharmaceuticals to study novel pain treatments
...a naturally occurring process. An excess of these reactive oxygen-derived molecules damages cell structure and even genes -- much like oxidation causes metal to rust. This type of progressive damage has become increasingly linked to several diseases and conditions, particularly those associated with aging ...FDA awards grant to metaphore pharmaceuticals to study septic shock in humans
...a naturally occurring process. An excess of these reactive oxygen-derived molecules damages cell structure and even genes -- much like oxidation causes metal to rust. This type of progressive damage has become increasingly linked to several diseases and conditions, particularly those associated with aging ...Free radicals mediate arsenic's harmful effects
...n turn converted into hydroxyl radicals, extremely reactive and damaging free radicals that attack cell membranes and DNA to create mutations. "As such, antioxidants could be an interventional approach in patients who have been subjected to chronic arsenic exposure," says Dr. Hei. He plans to extend the study...Avandia may reduce risk of cardiovascular disease
...els of monocyte chemoattractant protein-1 (MCP-1), reactive oxygen species (ROS) and C-reactive protein (CRP), mediators of inflammatory activity associated with the development of atherosclerosis. Study endpoints included the amount of ROS generation, serum CRP and MCP-1 at the start and end of the trial. ...Wayne State chemist wins national award for new ways to make nature's molecules
...chemistry. Montgomerys team bases its catalysts on reactive nickel and has devised new ways to use them.They act like a zipper, making lots of connection points all at one time, he explained. Applications can be developing cheaper routes to pharmaceuticals or providing access to molecules too difficult to mak...