Dangerous Chemical Combination Presents Possible Scenario For Gulf War Illnesses
... severity of clinical signs depends on howactive a particular blood enzyme is in removing the foreign chemicals fromthe body, the researchers said. This "scavenger" enzyme, calledplasma butyrylcholinesterase (BuChE), inactivates foreign chemicals suchas DEET and permethrin. However, the scientists said there ...Enzyme's "Magic" May Hold Key to Anticancer and Antimicrobial Drugs
..., Dr. Wang said. "Usually, drugs inhibit a particular enzyme. These drugs convert the enzyme to a poison." Such drugs have applications beyond chemotherapy. Antibiotics that target the bacterial form of topoisomerase II have been used since 1977. Now, by exploiting thei...Key to Triplet Repeat Brain Diseases Open Door For New Way To Understand, Treat Genetic Diseases"
...cturally different proteinthat binds strongly to a particular energy enzyme. As these crucial enzymesbecome disabled, increased numbers of neurons malfunction and may die, destroyingbrain tissue. The researchers have found this effect in two neurological diseases -- Huntington'sand Haw River Syndrome. They bel...Computer Program For Quicker, More Detailed Mapping
...o small pieces. Usingstatistics to count how often particular pairs of markers remain together,computers can mea...he coming maps will also help researchers find the particular DNA markersthat are used to diagnose disease. "The more detailed maps are essentialin identifying di...Heat-loving Microbe Repairs Its DNA With Light
...n, "but its discovery in S.acidocaldarius raises particular questions about what it takes tosurvive in geothermal habitats. For example, are we to infer thatUV radiation is a significant threat to survival in these high-temperature environments?" On one hand, it would seem logical that S. acidocaldarius , li...Nitric Oxide May Hold Key To First Treatment For Deadly Form Of Malaria, Duke Scientists Report
...at when NO enters a bacterium, the NO attachesto a particular place on proteins called a thiol, a protein subunit thatcontains sulfur. The NO-thiol coupling forms a new NO-compound called SNO(for S-nitrosothiol). SNOs are souped-up cousins of NO molecules, and theyhave a wider range of functions. To d...Nitric Oxide Found To Control Cells By Turning On Genes; Suggests New Role In Health And Disease
...at when NO enters a bacterium, the NO attachesto a particular place on proteins called a thiol, a protein subunit thatcontains sulfur. The NO-thiol coupling forms a new NO-compound called SNO(for S-nitrosothiol). SNOs are souped-up cousins of NO molecules, and theyhave a wider range of functions. To d......s a matter of considerable concern, Sloan says. In particular this invasion raises questions about the extent to which other microorganisms are invading the world's ports and estuaries. It is too early to tell what the impact of this introduction will be on the ecosystem, Sloan says, but at the population leve...Medicinal Leech May Offer Clues To Neural Regeneration
...at the site where the injury occurs. "We found one particular form of NOS that shows up only at the site of the ...ollow-up studies to identify what information this particular signaling molecule gives the regenerating nervous system." In addition, the staining results suggest...Sea Turtles Have Favorite Oceanic Routes
...visible at sea." The corridor in the case of these particular turtles turns out to be at most a few hundred miles wide. It extends from Central America in the direction of the Galapagos Islands, and the researchers managed to track some of the turtles well beyond the Galapagos before the transmitters expired. ...Researchers Develop Model Using Birds As Indicator Of Wetlands Health
...lands as well as a way tomonitor the health of one particular wetland over time. As part of his Ph.D. research, he also hopes to refine themodel and extend his work with birds to other types of wetlandenvironments. For example, U.S. EPA researchers are interested inthe possibility of using birds to monitor rive...Florida Company Using ORNL Technology For Revolutionary Wheelchair
...e can use knowledge gained in a specificarea for a particular purpose for other worthwhile endeavors," Killoughsaid. Cybertrax will integrate several unique technologies into its powerwheelchairs; however, ORNL's invention is the heart of the TransRovr. Othersignificant advances include improved seating technol...World's Experts Plan Global Locator Service For Environmental Information
...nderful tool for presentation. When we look for a particular piece of information, we often need to search many separate sources. We may not be satisfied with just scanning World Wide Web pages, just accepting the suggestions of one publisher, or just being limited to information published in English. ...Pinpoint Gene Control Holds Promise For Nervous System Studies
...ore. Many genetic studies are basedon mice where a particular gene has been knocked out for life.But this can't be done with genes that are vital fordevelopment, such as NGF: Knocking them out in an animal that isstill developing usually kills the organism. "In our system, the animal develops as it normall...Stronger Evidence That Global Climate Change Can Reduce The Variety Of Life
...able to plot the ups and downs inbiodiversity in a particular group of animals through 11 complete periodsof drastic global climate change," said Dr. Thomas M. Cronin, researchgeologist with the U.S. Geological Survey. "The rise and fall in thenumber of species of ostracodes during 11 glacial cycles suggests t...A Phoenix From A Ring Of Fire Is A Pattern For The Recovery Of Mount St. Helens
...t can be expected after more recent eruptions, in particular that of Mount St. Helens in 1980. Today, the islands surrounding the blasted volcano, in what is now Indonesia, are rich tropical rain forests abundant with vegetation and wildlife, and seemingly an eternity away from the moon-like slop...Biosensor Is A Model For Widespread Testing Of Chemicals, Molecules
...otein biosensor that can identify the presenceof a particular chemical in its surroundings. The group's p...ory analysis, and would help doctors in diagnosing particular disordersand in precisely regulating medications used during cancer chemotherapyor other complexes d...Method Eases Making Amino Acids Critical In Medicinal Chemistry
...d." The production of unnatural amino acids is of particular interest tothe pharmaceutical industry, Beak said. "Nature uses only one enantiomerof amino acids in the construction of enzymes and proteins. The metabolismof the human body has developed ways to break these down. By placing anunnatural amino acid i...Researchers Find Production Point Of Key Protein In Fragile X Syndrome
...enough said, "The knowledge allows usto focus on a particular aspect of the brain and its development in effortsto better understand the disorder." "It had been known from studies of mice, rats, cats, monkeys andhumans that the developing brain overproduces synapses through which nervecells communicate," he sa...... are regulated by the species of fish present in a particular lake," said Schindler. The changes in lakes, Schindler emphasized, will not have implications for global climate. However, the new understanding of the processes that alter the exchange of carbon dioxide between lakes and the atmosphere can be ge...