Dangerous Chemical Combination Presents Possible Scenario For Gulf War Illnesses
... BuChe activityshould be considered potentially at higher risk when exposed to PB and relatedcompounds, and this may account for some of the more severe symptoms seenin up to 4 percent of the Gulf War veterans," said Abou-Donia. An estimated700,000 military personnel served in the Gulf War. In addition, so......ch maypoint the way toward drugs that maintain the higher levels of dopamine inthe brains of Parkinson's sufferers. In Parkinson's disease, dopamine-producing neurons in the brain's motorcontrol center, called the substantia nigra, slowly deteriorate and die.Thus, Parkinson's disease begins with small tre...Enzyme's "Magic" May Hold Key to Anticancer and Antimicrobial Drugs
...therapy. "For unknown reasons, there are higher levels of topoisomerases in some cancer cells than in normal cells," Dr. Wang said. Many topoisomerase-targeting drugs "freeze" the enzyme while it is clutching two ends of a severed DNA strand before rejoining them (s...Researchers Pinpoint Site For Petit Mal Seizures In Brain
...neocortex, the portion of the brain that processes higher functions such as language. "In a sense the thalamus is thought to be the gateway to consciousness," Hosford said. "During a petit mal seizure, the thalamus switches to a burst pattern of signal transmission, similar to what we see in sleep. In a sen...Second Breast Cancer Gene Located
...veloping ovarian cancer,although the risk is still higher than the general population, the researcherssaid. A total of 182,000 U.S. women and 29,000 women in the United Kingdom wereexpected to develop breast cancer in 1995, according to estimates from theAmerican Cancer Society and the United Kingd...Duke Geologists Explore Alternative Way To Measure Ice Age Sea Bottom Temperatures
... those that lived during glacial times should have higher ratios of oxygen 18 than those that didn't. Foraminifera shells also take up more of one or the other isotope depending on the water temperature, with more oxygen 16 being taken up by shells formed in warmer sea water. But according to the Science ar......ers can estimate the age of a rock. Basically, the higher the ratio of Th-230 to U-238, the older the limestone. To get these ratios, scientists previously measured the minute amounts of radioactivity emanating from limestone. With proper instruments, they can distinguish between the radiation coming from ...New Discovery About Genes Has Implications For Genetic Therapy
... as if they were the ancestors of introns found in higher organisms." Lambowitz believes that the introns are "parasites" on the genome, and behave similar to the way retroviruses inhabit an organism. He suggested that retroviruses might even have evolved originally from these kinds of introns. "Thei...Mutate Or Die: New Polymerase Gives Desperate Yeast An Option
..., giving the cell a chance atlife at the cost of a higher mutation rate for the organism. "Replicating past the damaged site is the leastfavored mechanism of dealing with DNA damage, but from the cell's perspective, it's better to replicate damaged DNA andsurvive than to not replicate and die," says C...Southern Pine Beetle Reaching Outbreak Levels In North Florida
...blolly pine twice what it was30 years ago and at a higher level than in 1949, when Florida's firstforest inventory was conducted, Foltz and Meeker said. That means plenty offood for the beetle, which is partial to the taste of loblolly, and morefrequent, widespread and destructive outbreaks for forest manag...Honeybees In The Wild Nearly Gone In North America
...ll notice the effects of the honeybeedecimation in higher fruit and vegetable prices at supermarketsand farm stands. Other insect pollinators, such as bumblebees and other wild bees,will step in for the absent feral honeybees and pick up a portionof their pollination duties, Tew said. However, he said, cult...Researchers Use Hydrated Lime To Reduce Toxic Selenium Emissions
...e"up to five percent of its weight in selenium. At higher temperatures,calcium selenite is thermally unstable, which reduces the efficiencyof selenium capture. The scientists compensated for this by injecting the dry sorbentfurther away from the firing point in a power plant, where temperaturescan exceed 1,...Water Recycling Project Tested in Turkey Plant
...ause it allows the operator to turn the water at a higher rate than mandatedminimums," Baldwin noted....Core Spins Faster Than Earth, Scientists Find
...ure in the Earth'score, which is millions of times higher at the inner core surfacethan the atmospheric pressure at the Earth's surface, has alignediron atoms in a distinctive crystalline structure that slows downwaves in some directions and creates a "fast track"for seismic waves in a near north-south dire...Humble Pocket Gophers Shed Light On The Genetic Fortitude Of Cheetahs
...e another. However, gophers from a population with higher genetic diversity rejected skin grafts from their ...te individuals. The Carmel Valley gophers had much higher genetic variability, more typical of most mammals. Each Humboldt gopher accepted grafts of small pat...Genetic Alterations Linked To Cancer In Some Blood Samples
... cell lung cancer. The authors speculate that the higher presence of alterations may be indicative of the high propensity of this cancer to spread. In addition to Sidransky, other participants in the Hopkins study include Drs. Homaira Nawroz and Wayne Koch from the Department of Otolaryngology--Head and Ne...Major Plant Genome Research Project Underway
... develop the first complete gene sequence map of a higher plant. The three-year awards total approximately $12 million. Arabidopsis thaliana is a small plant in the mustard family, and has the smallest genome and the highest gene density so far identified in a flowering plant. What scientists lea......re able to show for the first time that structures higher up in the brain's chain of command directly contro... scientists call "syllables" --are composed by the higher structures, but the individual notes get filled in by the lower brain regions. This sort of hierarch...Component In Soy Products May Be Substitute For Estrogen Treatment
...nes, another had products with 92 milligrams. The higher level of isoflavones produced significant improvements in thebone densities in the women's lumbar spines -- a key location for assessingosteoporosis, a common disorder of aging women that is marked by a progressiveloss of bone tissue because of a los...... decades, China's old-age dependencyburden will be higher than North America's and about the same as that currentlyin Western Europe," explains Lutz, adding that to avoid serious problems inits pension system, China must take immediate and intensive actions. "The Future Population of the World: What Can ...