Influenza vaccine uses insect cells to speed development
...t rely on whole vaccine virus. It uses a purified concentration of a key molecule on the surface of the virus, called hemagglutinin, to elicit an immune response against that specific strain of the virus. Wang and his colleagues have developed a methodology for rapidly producing and purifying hemagglutinin from ...Food preservative neutralizes anthrax spores
...nated wipe. A similar product, with a much lower concentration of nisin than would be necessary against anthrax is already available commercially for treating mastitis in cows. Other options include a topical cream or a foam. "Given the capacity of nisin to neutralize spores, its common topical use on animals ...Winners of Tyler Environmental prize announced
...rly show that the yearly average of carbon dioxide concentration has steadily increased from 315 parts per million in 1958 to 377 in 2004. The seasonal reduction in carbon dioxide, Keeling demonstrated, was due to photosynthesis by green plants in the northern hemisphere. He then showed that the rise in carbon d...Solving sleep problems helps epileptic children
...their epilepsy get better, their daytime behavior, concentration and capacity to learn increased," said Dr. Paul Carney, chief of pediatric neurology at UF's College of Medicine and a professor at the B.J. and Eve Wilder Center for Excellence in Epilepsy Research. "Many kids with epilepsy aren't being adequately a...JCI table of contents April 1, 2005
...ng injury. The authors also show that high oxygen concentration stimulates A1, that A1 regulates death of cells in the lung, and that it plays a central role in the induction of other proteins that modulate programmed cell death. In mice lacking A1, the harmful effects of oxygen are intensified whereas overexpre...Chemical compounds present in diet increase risk of colon cancer
... Health Perspectives. The researchers measured the concentration of organochlorines in the blood serum of a group o...lorines: PCB 28 and PCB 118, which were found at a concentration double that found in the remaining patients. These substances belong to the PCBs or polychlorinated ...'Second messenger' NAADP shows fast, dose-related impact on satiety cycle
...ly, the plot of NAADP level versus cholecystokinin concentration was best fit with a two-site model, suggesting that both the high- and low-affinity sites were linked to NAADP production," Yamasaki said. In contrast to the hormone cholecystokinin, the neurotransmitter acetylcholine failed to affect NAADP level, ev...Satellite images give a better picture of sediment transport
...e sensing provides reliable quantified data on the concentration of suspended matter in water. The researchers comp...ed particles, therefore variations in the type and concentration of these particles alter the optical properties of marine waters. Remote sensing, which shows up col...SSRI antidepressants involve dopamine as well as serotonin signaling
...rm their antidepressant function by increasing the concentration of serotonin in the signaling junctions, called synapses, between neurons. This increase alleviates the deficiency of serotonin that causes depression. As their name indicates, SSRIs prevent uptake of the serotonin after it has performed its task as ...Arsenic removal from drinking water is focus of new projects
...se into groundwater supplies, and tracking arsenic concentration variability in relation to time and pumping procedures. A new technique for more effective arsenic removal than existing methods also is being examined, Smothers said. Arsenic isn't the only focus of the center's research. "Water quality at surface w...New findings in taste and smell research
... swim towards the egg. By integrating the changing concentration over a 200ms interval, sperm can navigate to a sha...spatially dynamic fluid environment. Moreover, the concentration gradient, not concentration itself, modulated sperm trajectories. Thus, even at microscopic scales, ...Research news from the Friedman School of Nutrition Science and Policy at Tufts University
...were collected from 196 men and analyzed for their concentration of fats. The study found that those men with less advanced prostate tumors had higher concentrations of overall polyunsaturated fatty acids, and particularly high concentrations of omega-3 fatty acids, than men with more advanced tumors. The study ...Report proposes structure for national network of cord blood stem cell banks
... should strive to provide units with a high-enough concentration of stem cells to make up for imperfect matches bet...ort says. When perfect matches can be found, cell concentration is less important. For many racial and ethnic minority patients, it is difficult or impossible to f...Programmable cells: Engineer turns bacteria into living computers
..., the cells glowed green when they sensed a higher concentration of the signal chemical and red when they sensed a ...nto the head, abdomen and other parts based on the concentration of chemical signals that are emitted from the ends of the embryo. In addition to conducting laborato...Food fried in vegetable oil may contain toxic compound
...d. HNE is incorporated into fried food in the same concentration as it forms in the heated oil. Also, Csallany and her colleagues have found three toxic HNE-related compounds (known as HHE, HOE and HDE) in heated soybean oil. They will present their work at a poster session from 9 a.m. to 2 p.m. Wednesday, May 4, ...Motor transport in bio-nano systems
...stems exhibit a characteristic, intermediate motor concentration for which the cargo transport is optimal. With the...the researchers can predict how this optimal motor concentration depends on the single motor properties. The theoretical results are in agreement with the available ...Tollbooth ventilation system effective in protecting workers from traffic air pollution
...iences. In June 2001, the researchers measured the concentration of air toxins at a tollbooth at the Baltimore Harbor Tunnel. They also examined traffic volume in addition to curbside pollutant concentrations and the concentrations inside the tollbooth. They compared air toxin levels during the three shifts worked...Combating antibiotic resistance
...c-mediated DNA damage generates a reduction in the concentration of LexA that is sufficient to increase the expression of three nonessential DNA polymerases that promote DNA repair and cause mutations in bacterial DNA that can lead to antibiotic resistance. This suggests that quinolone antibiotics (and other anti...Natural electrical potential difference affects water transport in clay
...drostatic pressure but also by differences in salt concentration and electrical potential difference. These process...y. Both a difference in water pressure and in salt concentration can give rise to an electrical potential difference over the clay layer that affects the transport o...... mice with an approximately 3-fold increase in the concentration of LXRa receptors in their livers. The mice also lacked a second gene that made them particularly prone to cardiovascular disease. When fed normal mouse chow, mice with a greater than average number of the receptors exhibited a rise in blood choleste...