Animal Studies Indicate Aging Brain Responsive To Estrogen
...minor memory losses sometimes associated withaging might be alleviated by replacing estrogens. The authors...d that treating Alzheimer'spatients with estrogens might help protect against neuronal death that leadsto the cognitive decline. "Estrogen replacement thera...Medicinal Leech May Offer Clues To Neural Regeneration
...t a cellular level, and to see how these functions might help the leech's nervous system set itself up to a...ion, the staining results suggest the nitric oxide might be involved in the rapid microglial accumulation that follows injuries to the connectives. Sahley an...Duke's Russian Laser Making Ultraviolet Light And Gamma Rays
...t the higher energy levels, the OK-4's gamma beams might allow TUNL scientiststo infer the relative masses of the up-and-down quarks within protons andneutrons -- another major unanswered question in nuclear physics, Welleradded. Boosting gamma energies that high would require a major upgrade of the FELLa...Sea Turtles Have Favorite Oceanic Routes
...aps the interconnecting corridors as well. "People might say, 'Oh, at least they have the whole ocean to live in.' With the discovery that turtles are concentrated within narrow corridors, what we're finding is that this may not be true," Morreale said....Researchers Develop Model Using Birds As Indicator Of Wetlands Health
Cincinnati -- You might say "a little birdie told them."Researchers at the University of Cincinnati have found thatcounting birds can provide important information about thecondition of a wetland. "How healthy is the habitat?" asked graduate student JamieColeman, who also w...Researcher Discovers Key Brain Center For Speech
...ces. For example,someone with damage to the insula might sound tongue-tied over such wordsas "tree," pronouncing them instead as "dree" or "free." "We may have found an area that in the very least is signficantly relatedto the speech process if not a center for that function," says Dronkers,who conducted ...Methane Deep In Ocean Crust Could Feed Chemical-Hungry Microorganisms
...s speculation about how pervasive these life forms might be. Kelley has been studying the source of these nutrients in what is called "layer three" of the oceanic crust. Located at a depth of about two and a half miles, this layer consists of rock that was once part of molten magma chambers. Although ...Researchers Find How Disease-resistant Plants Recognize Bacteria
... his "gene-for-gene" theory was correct and how it might work. In 1993, Martin was successful in cloning the first disease-resistance gene in crop plants, Pto , which is involved in gene-for-gene disease resistance. But Martin and his colleagues at Purdue struggled to understand the molecular mechanism of...New Nonviral Gene Therapy System Could Help Fight Cancer
...nt of genetic birth defects, permanent genetherapy might be the method of choice," Wagner said. "But torepair or destroy diseased cells, it's not necessary to change thebody's genetic makeup permanently. The T7 system is a means todeliver a gene product or drug into a patient without that genebecoming part...Bigger Biology Tackled Through Keyboards
... account for the fact that neighboring individuals might behave differentlytoward each other than distant individuals -- whether these are trees competingfor light or individuals spreading disease. For example, the evolution of altruism has long intrigued biologists. Whywould an organism intent on spreadi...Researchers Corral Millions Of Microscopic Membranes
...ves suggested. In a similar fashion, the technique might be used to screen for drugs such as channel blockers that interact with receptors on a cell's surface and interior membranes, the researchers said.The starting point for the project was research that was completed in 1986 and 1987 by Stanford chemist...A Phoenix From A Ring Of Fire Is A Pattern For The Recovery Of Mount St. Helens
... The parallels between the two volcanoes might seem to be affected by their different geography,...nnot live in the lower elevations, so the volcano might just as well be in the ocean." The recovery of Mount St. Helens will come through natura...Molecular Imposter Rebuts Long
...sert into a growing strand," Kool says. "Theenzyme might form a tight pocket around the DNAtemplate which allows only correctly shaped bases to be added" --like an empty space in a jigsaw puzzle that can onlybe filled by the one puzzle piece that has a matching shape. Kool believes researchers haven't...Fund Aims To Repay Developing Nations For Valuable Genes
...ntries in hopes of finding plants and animals that might yield new informationfor basic research and have future commercial value. In many cases thesehave been wild plants carrying useful agricultural traits to be bred intotheir domesticated cousins. In more recent years, with the growth of biotechnology,......he lack ofprotein in the diet of the earlier study might have a sex-dependent effecton life expectancy and ...ntial nutrients werenot being consumed, the Medfly might call upon nutrient reserves that normallywould be used for body maintenance and repair. That notion ...New Study Shows Steps Leading To Colon Cancer
...flies to search for and test potential drugs which might turn off or block the signaling pathway that leads to tumors," he said. Fruit flies are far more important in biology and medicine than most people realize, Peifer said. "Two years ago, the Nobel Prize in medicine and physiology went to three sci...Virus May Be Linked To Obesity -- Early Findings Hint At Relationship
...ulation. "This increase is the type of patternthat might occur with a new infectious disease, as has been seen with theAIDS virus. A great deal of further research is necessary to determine ifthe global epidemic of obesity may be due in part to infection with Ad-36." The research was funded in par...Purdue Researchers Prod Plants To Clean Up Pollution
...op metal-mining plants, EPA Superfund-site farmers might clean up contaminated sites after a few cropping s... calcium and strontium are so similar, plant cells might take up strontium and incorporate it into calcium oxalate crystals, and that should increase the pla......dy, not just in the endocrine glands as scientists might have predicted based on the endocrine tumors chara...ted parent, and to identify a specific region that might harbor the sought-after gene. "We were able to look at the tissue sample and say 'Here's the DNA ...