Key to Triplet Repeat Brain Diseases Open Door For New Way To Understand, Treat Genetic Diseases"
...f each of the diseasegenes, the triple repeats are causing all the proteins to bind to this singleenzyme. Scientists have usually only thought about how a gene mutation producesa change in that protein that results in a disease. This is an observationthat provides a mechanism for a group of diseases." If d...Duke Researchers Find Second Gene Linked To Blood Vessel Disorder
...seinto one large mass that can easily be ruptured, causing recurrent bleedingepisodes in affected people. In some people, the disease is only a cosmeticproblem with tiny red blotches forming on skin or recurring nose bleeds.Others suffer migraine headaches or lesions in the lung or brain that canlead to fata...Transgenic Rice Plants Resist Insects, Drought And Salt Damage
...armers to produce more food on the same land while causing less environmental damage."...Mutate Or Die: New Polymerase Gives Desperate Yeast An Option
...opied to other cells carries a muchgreater risk of causing cancer and other diseases than healthy DNA does. B...ied lesion created when sunlight hits an organism, causing two bases to link up unnaturally.The abnormality almost always stops other polymerases dead in their...Honeybees In The Wild Nearly Gone In North America
...ver,wereclearly and definitively the last straw in causing this populationcollapse." Honeybee populations maintained by the nation's beekeepers havealso been reduced by mites, Tew said, although not as severely.Estimates of domesticated bee losses to mites vary from stateto state, he said. "Honeybees are not...Protein Glitch May Be Early Problem In Inherited Alzheimer's
...evels, Sisodia notes, it's unlikely to be directly causing the widespread damage to nerve cells seen in FAD, but it may interfere with other proteins that could. Like dominoes falling, a change in presenilin sets off a chain reaction. "Think of it as a cascade," says Sisodia. "We don't know how many steps t...Asian Beetle, New In This Country, Threatens Brooklyn's Shade Trees
...e drilling them. But rather than human teen-agers causing the damage, adult beetles emerging from the heartwood center of the trees bore an exit hole through the outer bark. After beetle emergence, mating occurs, and eggs are laid in cavities in the bark, chewed out by females and covered with a cement sec......has clogged water pipes in the Great Lakes region, causing millions of dollars of damage. Cohen, who works with the Energy and Resources Group at UC Berkeley, has previously reported the introduction of more than 200 exotic macroscopic species, both plants and animals, to San Francisco Bay in the past 150 ...Scientists Identify Retrovirus-Like Components In Corn Genome
...s may have worked to prevent the retroviruses from causing disease. "If such a mechanism exists, scientists may be able to apply it to help animals and humans fight retroviruses, which cause a number of devastating illnesses such as some forms of cancer and AIDS," Bennetzen says. The group also is trying to ...Pinpoint Gene Control Holds Promise For Nervous System Studies
...are studyingprecisely how increased NGF levels are causing these changes inthe animals' behavior. The ability to turn on and off genes in the nervous systemshould help scientists better understand the role of NGF andother neurotrophic factors, substances that help keep our neuronsalive and healthy. Scie...New Nonviral Gene Therapy System Could Help Fight Cancer
...ells, but dormant cells can divide aftertreatment, causing the tumor to come back. The T7 system would allow scientists to inject a correctivegene into a tumor that would begin working immediately ondividing cells, then lie in wait for other cells that divide later. And, Wagner said, the system wou...Bottom-up Ecological Processes Better For Clear Waters, Study Finds
...lakes around the world, the most common pollutants causing murkywater are actually nutrients that fuel the growth and number of tiny plantsat the bottom of the food chain. Limnologists have long recognized thatnitrogen (typically from sewage and fertilizer) and phosphorus (from nearbyconstruction or logging)...Stronger Evidence That Global Climate Change Can Reduce The Variety Of Life
...lts at 23.5 degrees relative to its plane oforbit, causing the seasons, but tilt has varied from about 22 to 25 degreesin the past due to changing gravitational effects from the other planets.These changes in the Earth's tilt alter the amount of solar radiationreaching Earth at different latitudes. C...Eating After Exertion May Be A Key To Speeding Body's Recovery
...elp regulate the release of serotonin inthe brain, causing lethargy and fatigue. "The oat-based cereal allowed us to increase the denominator in theratio," Layman said. "Raising the level of large neutral aminoacids should reduce the amount of tryptophan getting into the brain andreduce feelings of fatigue....New Study Shows Steps Leading To Colon Cancer
...rmly establishing beta-catenin as an accomplice in causing colon cancer and as a strong suspect in melanoma. As in many crimes, however, beta-catenin did not act alone but with a set of partners." Describing work in fruit flies -- genetically similar to humans and far easier to work with -- the Cell paper ...Scientists Urge Further Study Of Alarming Coral Reef Decline
... ortwo, Ostrander said. "We don't know what's causing the bleaching," he said."Furthermore, the bleachin...s is incredible." Theories to explain what is causing the decline in coralreef health cover a wide range of possible natural and man-causedscenarios. Some...Purdue Study Aims To Boost MRI Capabilities
... to produce faster, more precise MRI scans without causing discomfort to patients. "Faster scanning technique...s studying ways to combine power and speed without causing distress. Initial findings from the study, funded by the National Institutes of Health, will be repo...Newly Identified Tomato Gene Appears Key To Fruit Softening
...that can be identified as beingthe major player in causing tissue disintegration that occurs in softeningfruit," he explained. Rose works in the laboratory of AlanBennett , a professor in the vegetable crops department and associatedean of the plant sciences division of the UC Davis Collegeof Agricultural...Stuttering Appears To Have Strong Link To Family Genes, Researchers Say
...o overreact to a child's normal speechrepetitions, causing a reaction that leads to real stuttering. About five in every 100 children will begin to stutter at some point,most before age 5. About four of those five will stop within a few years,Yairi said. One, however, will become persistent, struggling with...