Water: the unexpected blood pressure drug
...osmoreceptors (which sense salt concentrations) or stretch receptors in the stomach or liver," added Jordan, who is currently director of the Clinical Research Center at the Franz Volhard Klinik of Humboldt University in Berlin, Germany. The studies suggest a new and more effective treatment for the blood pr...Scientists report first complete DNA sequence of plant chromosomes
...the Arabidopsis genome. For example, a very large stretch of DNA (4.6 million base pairs) is duplicated on chromosomes 2 and 4. This duplication represents approximately one-quarter of the total length of each of these chromosomes, and its existence in plants supports the emerging view that large-scale intr...'Frozen pictures' allow far-reaching glimpse into the cells protein factory
... initiation step. Both tasks called for a creative stretch of scientific imagination. Conformational changes are not routinely induced within crystals due to the limitation of motion imposed by the crystal network. However, since controlled heating had previously been shown to enhance in-vitro ribosomal a...Key progress by Weizmann scientists in the race to unravel ribosomal structure
...teinbiosynthesis. Both tasks called for a creative stretch of scientific imagination. Crystals limit molecular motion, thereby impeding conformational changes. Since controlled heatinghad previously been shown to enhance ribosomal activation, Yonath decided to take a chance at heatingup the crystals despite...Evergreens help block pesticide from crop fields
...st, the typical 2000-foot stretch of windbreak runs about $400 -- which the agency says is comparable to what farmers would spend to do the job on their own....Protein component apparently plays key role in muscle elasticity
...n appears to be a key component allowing muscle to stretch and return to normal by regulating the ability of ...d subsections (immunoglobulin domains) of titin to stretch by about 6 angstroms and still return to a normal state. Beyond that, the bonds will rupture and do...Cattails and contamination: marshy stalks hold DNA clues on pollution
...dozens ofcattail populations along a 320-kilometer stretch from Louisville, Kentucky, toCircleville, Ohio (south of Columbus). In addition, five sites were sampled on the Wurtsmith Air Force Base innortheastern Michigan, because some of the sites were known to be contaminatedwith fuels, solvents, and other o...USGS finds elevated levels of organochlorine pesticides in Aleutian bald eagles
...ering Sea and is made up of many islands that stretch between North America and Asia. It is also the westernmost nesting range of the bald eagle. In their study during the summers of 1993 and 1994, Anthony and his coauthors were surprised to find elevated levels of organochlorine contamin...Scientists suggest genetic shutdown links estrogen, heart disease
... smallmolecules attach to a gene's "on switch," a stretch of DNA called the promoterregion, and shut the gene down. But in clogged heart blood vessels, the researchers found almost threetimes more methylated ER genes -- around 11 percent. "We've been looking for the link between estrogen, ...Study: calcium channels regulate cell movement
... that calciumchannels -- which function when cells stretch -- help regulate cell movement. The finding one day may have profound clinical implications in woundhealing and cancer treatment, the researchers say. "A lot of people don't realize that many cells are not stationary butcan travel fro...Mechanical forces found to exert larger role in blood vessel health and disease
...wn that mechanical forces, including shear stress, stretch and pressure,can play unsuspected but equivalent roles in some aspects of cardiovascularhealth and disease. Dr. John Tarbell, distinguished professor of chemical engineering, andassociates in Penn State's Biomolecular Transport Dynamics Laboratory, ...Gene treatment can boost heart function in rabbits, Duke researchers say
...iondevelops when heart muscle loses its ability to stretch and contract, usuallydue to clogged arteries caused by coronary artery disease. People withcongestive heart failure often experience fatigue, weakness and an inability tocarry out routine daily tasks. There is currently no effective means to reverseh...New enzyme tied to tangles in Alzheimer's disease
...s assembling and maintaining the microtubules that stretch from one end ofthe nerve cell to the other. Microtubules keep the long nerve axons healthy fromthe muscle to the brain by transporting cell nourishment and structuralcomponents. Tau can be derailed from a microtubule when too many phosphates ...Major $17 Million Grant To Fund Ocean Research
...dispersal of early life stages, along a 1,200 mile stretch of coastal watersfrom Oregon to southern California. PISCO will establish a coordinatedmonitoring network to track near-shore ecological patterns along the coast andprovide vital information on topics ranging from zooplankton survival tocollapsing ......rtant member of so-called mixed-grass prairiesthat stretch from eastern Wyoming north into Canada. "If there is a cause-and-effect relationship between temperatureincreases and a decrease in blue grama, it could hold for the entire region,"Detling said. There isn't conclusive proof that tem...Brain Building May Depend On DNA Cutting And Pasting
...he cells diednot during division, when chromosomes stretch out and can break or be damaged,but just afterwards. "The onset of cell death is very tightly linked to the period whendividing progenitors are differentiating into neurons. That makes it potentiallyvery exciting," Alt says. Although he is no...Gene Identified For Heart Defect That Causes Sudden Death In Young People
...rsts of fatal arrhythmias. The ARVD gene lies on a stretch of 7 million base pairs of DNA (the chemicalcomponent of the gene), which comprise perhaps 150 genes. Of these genes, onlya few are likely to be active in the heart. The researchers will firstdetermine which genes are expressed in the heart and the...Science Announces Top Ten Research Advances Of 1998
...torial Chemistry: In 1998 researchers continued to stretch theapplications of combinatorial chemistry far beyond the traditional realm ofpharmacology. This technique, which allows researchers to make and test hundredsof thousands of new compounds at once, was not only used to produce newmolecules for drug di...Rivers May Be Emitting Substance Involved In Ozone Destruction
...elds. Themeasurements were taken along a 450-mile stretch of the river from North Platte,Neb.,to just above Denver, Colo....Scientists Finger A Molecular Kingpin In Body's Response To Cigarettes
...ecially crafted for research by deleting aspecific stretch of DNA. These mice were supplied by long-timecollaborator Allen Silverstone of the SUNY Health Science Centerin Syracuse; the animals trace their lineage back to the NationalCancer Institute, whose researchers were the first to knock outthe AH recept...