Scientists discover key molecule in transmission of AIDS virus
...the chemokine-receptor complex on T-cells, greatly enhancing the entry of viral particles into these cells," says Dr. Littman. The current studies were performed with cultured cells in the laboratory, and scientists now need to validate their findings in people infected with HIV. Dr. Littman says...... thereby releasing more Smad proteins and enhancing the TGF-beta pathway. "We've shown that the functions of the TGF-beta pathway and the microtubular system in cells are strongly interrelated," Goldschmidt said. "If the ...Algal food quality, not quantity, critical factor in healthy lake ecosystems
...nkton graze on algae, keeping it under control and enhancing water quality, and they are important prey for small fish, which are in turn eaten by sport and food fish. "Phytoplankton that are more nutritious can have a major impact on the overall food web," Brett said. "What the study shows is that the rate...20th century marks achievements in food science and technology
...ymes that cause off-colors and flavors to develop, enhancing the quality of frozen vegetables when thawed. Food fortification begins by fortifying table salt with iodine (1924). 1930s: Freeze-drying process (quick-freezing followed by drying under high vacuum conditions at a low temperature) invented to prese...Creatine may improve performance during short bursts of activity
... of creatine in hopes of enhancing muscle performance. After it is ingested, stores of both creatine and phosphocreatine in the muscle can increase. The study appeared in a recent issue of the International...A molecule family hinders spinal cord regeneration, UF brain institute team finds
...splanted cells don't grow more vigorously, thereby enhancing the level of recovery. Now experiments in rats at the University of Florida Brain Institute suggest a possibleexplanation and a potential target for therapeutic intervention: Researchers suspect that in the daysfollowing a transplant, a particular f...Human plague cases increasing in Southwest
...ct to promote flea survival and reproduction, also enhancing plague transmission. "Our results can be used by physicians and public health personnel to identify and predict periods of increased risk of plague transmission to humans," Parmenter hopes. Global climate dynamics are proposed by some scient...AGU 1999 Fall Meeting -- Information for media representatives
...earch, disseminating the results of that research, enhancing educational opportunities in science, and encouraging international cooperation in geophysics. This year, two new themes have been added to Fall Meeting: Biogeosciences, and Education and Public Policy. Several hundred papers were received on the......at thecorresponding gene exists in humans, but its enhancing effect in humans is notknown. Indeed, developing a drug or gene therapy from Tsien's discovery would take manyyears of testing in animals and humans. "This is far in the future and iscertainly not something we could bring to the bedside tomorrow," sa...Immune molecule found to kill indirectly by closing receptor to live-saving help
... In mammals, IGF induces muscle protein synthesis, enhancing growthand weight gain, except in the presence of TNF, which is produced by immunecells in both the immune system and the brain. In neurons, the activity issimilar; IGF works to save damaged cells, but its ability quickly diminisheswhen TNF is added ...Nearby supernova may have caused mini-extinction, scientists say
...ombardment could have affectedEarth's biosphere by enhancing the penetration of harmful solar ultravioletradiation and by increasing the global cloudcover, leading to a 'cosmic-ray winter' and a mini-extinction." In a paper scheduled to appear in New Astronomy, Fields and colleague JohnEllis, a theoretical phy...National Science Board calls for significant new investment in research on the environment
...ational vehicles. High priority should be given to enhancing infrastructure for innovativeenvironmental information networking capacity. NSF should take the lead in enabling a coordinated, digital, environmentalinformation network....APS launches new online journal to focus on link between genes and function
...nvited reviews and perspectives that contribute to enhancing theunderstanding of the scientific approaches and concepts that link genetics andphysiology....Urban Restorer Sees Trash Trees, Beetles As Signs Of Hope
... something more suitable forhuman compatibility by enhancing biodiversity, reintroducing native species andworking with and revealing the natural processes underway in the area. "Nobody else is using this kind of an approach in a situation that hasthis degree of degradation and level of stress in the m...New Biochemical Technology Ready To Retrieve, Purify Heaviest Crude Oil
...g much of the sulfur, nitrogen and metals. Besides enhancing the overall efficiency of the refining process, this actionhas a positive impact on factors that can contribute to global climate change. The process also naturally produces surfactants and oxygenates. BioCat, whose mission is to provide technology-...Compounds From Fruits, Vegetables And Grains Slow The Growth Of Human Tumor Cells
...roup to inhibit cancergrowth," he says, "with some enhancing the effectiveness of others." Nor does Elson believe in an exclusively vegetarian diet. "I don't think that it's the presence of meat in diets that leads to healthproblems, but the lack of enough fruits, grains and vegetables. The people whoeat a lo...Millennium Clones Diet-Induced Obesity Gene
...nweight-regulating melanocortin receptors, thereby enhancing the receptors'signaling, explains Dr. Moore. In agouti-yellow mice, which were used in theMillennium study, the agouti gene overexpresses its protein product, which issuch an antagonist, thereby blocking the melanocortin receptor, and the mice canbe...Researchers Find How Two Cancer Genes Interact To Cause Malignancy
...ses the protein frommyc to accumulate in the cell, enhancing myc's growth-promoting abilities. Ifras is not mutated, the myc growth-stimulating signal dies rapidly and cellularreplication is controlled. "The 'multi-hit' notion of cancer has been around for a while," said Nevins, aHoward Hughes Medical Institut...NSF's Highest Honor For New Faculty Fosters Integration Of Research And Education
...ance of a task. Along with this research, Wang is enhancing thetraditional physics curriculum, helping to develop courses in computationalneuroscience and developing interactive computational teaching tools for use inundergraduate neuroscience courses. Such teaching tools may be used inphysiology and biochem...... to produce more integrins on their surfaces, thus enhancing the chances of successful gene delivery. Summerford notes that white blood cells calledmonocytes can be removed from an individual and genetically induced to "express"a greater number of integrins on their surface. These cells may then be infectedwit...