Florida Or Bust? Older Lab Rats Seek Heat To Fight Infection, UD Researchers Report
...be mediated by exposureto heat. "Our work has thus far been limited to a relatively small number of animals, andthe implications for older people are still speculative," Satinoff cautions. Butinformation about fever regulation among older populations may provide newinformation for doctors, nursing home a...Biochemist Solves Riddle Of Collagen Stability
... can develop a more stable collagen for human use, far more important medical therapies would be possible, Raines said. Collagen breakdown is at the heart of many serious diseases, such as arthritis, rheumatism, brittle bones, lupus, cirrhosis and cataracts. Providing a stronger source of collagen could ...Jefferson Scientists Devise Way To Treat Animals Chronically Infected With Hepatitis B
...dthat the host cellular glycoproteins appear to be far less sensitive to thisinhibition than is HBV. "We were able to inhibit this step in glyco-processing and shut down theappearance of infectious virus in most of the infected animals," he says. "Itprevents the appearance of envelope virus in th...New RNA Repair May Lead To More Successful Gene Therapy
...iversity in Switzerland. The technique, so far limited to laboratory cell cultures, involvesusing small RNA molecules to block defective processing, or splicing, insidecell nuclei of a messenger RNA that codes for a blood protein known asbeta-globin. Since the short RNA fragments block th...Invasive Weeds Pose Major Threat To American Landscape
...?Peopleare carrying plants or their seeds from the far reaches of the globe into everycorner of our nation to compete with -- often to destroy-- the wonderful varietythat nature once gave us.? Over the past decade, the report says, devastating impacts from invasive specieshave been reported on every...Poison-Eating Bugs Strike Gold
... new system for purifying the waste water, and so far they have managed to reduce the concentration of toxin in the waste-stream 15-fold," he says. "If we can fine-tune the process a bit more, it will make the water completely re-usable by mines that bioleach refractory ores prior to cyanide gol...New Study Shows White Males Have More Receptors For Patent Blood-Vessel Contracting Substance
...r disease than whites. Malesdie from heart attacks far more often than females. Women suffer from migrain...hatof females. All this means that these veins are far more likely to constrict --causing problems with blood flow -- in men than in women. The vastly grea......egion are extremely poor and current funding falls far short of the estimated $2 billion needed in order to meet family planning and other reproductive health needs. In 1990, African governments spent only about $200 million of their own money for all preventive health services, including family planning...Rice Names Matthews Dean Of Natural Sciences
... "There's no question in my mind that Kathy was far and away the best choice for this position, although there were some extremely outstanding outside candidates," Kinsey said. "Kathy is someone with whom I've worked very closely during my time here and I've alwa...Jellyfish Help To Make Sugar Smarter
...s to check more samples for the best results at a far lower cost. The jellyfish gene is also a trailblazer, opening the way for the use of genes that will add value and quality to Australia's sugar production or help reduce its environmental impact through genes that confer resistance to pests and di...Birds Sing The 'Story Of Their Lives,' Theorize Duke Biologists
...ggerated trait, Nowickisaid. "Bird song is far more complex than it needs to be for the informationit conveys," he said "It can be as complex as human speech by such measures asthe number of units per time, bandwidth, or the rate of acoustic modulations.But if a bird is only more or less just adv...New Machine Slashes Time, Cost To Make Unique Lenses
...erical primary mirror, and use it to look ata star far away, the starlight striking the edge of the mirrorwould focus at a different spot than the light striking themirror's center. You'd actually need additional corrective opticsto reduce this aberration, which is normally avoided altogetherin telescope...New Insights Into The Enigma Of Lengthening Longevity
...ral property of complex systems. As far as living organisms are concerned, these findings come as a big surprise in light of the traditional view that posits maximum life-spans. According to this theory, the postreproductive span of life should be short because th......ignaling pathways. Two major types of CAKs have so far been identified. One type establishes contact with the machinery necessary to provide the template (messenger RNA) to produce proteins within a cell according to the DNA blueprint. This machinery is called the t...New Fossil Discoveries Clinch Ancient Age Of Human Ancestor
..., Walker says all the early fossils discovered so far support a more tree-like picture of evolution for hominids -- the ancient ancestors on the human family tree. "We don't yet have any convincing evidence early in the fossil record of multiple hominid species," Walker says. "The simplest explan...15 Drugs, Dyes And Other Chemicals Newly Listed As Known Or Likely Human Carcinogens
...have health benefits, when properly used, that can far exceed theirpotential risk." Cyclosporins labeling already calls attention to studies indicating apotential cancer risk. The drug is used to help prevent rejection of atransplanted kidney or other organ by its new host. A second prescription drug fo......bacteria. The question of a phosphoryl acceptor is far more difficult to address, as the different intermediates between ADP-glucose and amylopectin are plentifold and not easily obtained. A further phenotype associated with the reduction of phosphate in the starch...University Of Cincinnati Biologists Find Evidence For Unusual DNA Repair InArchaea
...said Grogan. "About 95 percent of themutations are far enough part in this one gene that they will give you a number ofrecombinants." That indicates a very high rate of recombination in Sulfolobus . So,Grogan can't be sure if the pyrF recombinants are being formed by classical genetics or not."It might ...Dust Mite Behavior May Show New Ways To Control Pests
...er any of them are pheromones.Scientists have thus far only identified the role of one of these chemicals-- a compound that inhibits mold growth. “A number of mites and ticks use pheromones and other chemicals,”said Glass. “They have a whole series of chemical cues, for findingmates for e...Tiny Jamaican Tree Crab Made Big And Fast Evolutionary Leap, Scientists Discover
...r collects. The researchers say thesecrabs are by far the most attentive mothers of all known crab speci... Jamaica's geologic history when theland had risen far enough out of the sea to provide new ecological niches forthe ancestral marine crab that began evolv...