Images reveal how body regulates salt uptake in cells
...npoint the chemistry that holds a chloride ion and defines the selectivity filter. This is important to designing future experiments that will test how the chloride ion flows through the channel. By pinpointing the important chemical interactions, we narrow down where mutations should be made to test functio......rted into more refined information that ultimately defines every position along the body axis in exquisite detail, says Ethan Bier, a professor of biology at UCSD who headed the research. This process assures that fingernails grow only on the tips of fingers and two eyes become positioned symmetrically on ei...Statins' beneficial effects on HDL
...anscription and the biosynthesis of HDL. This work defines a second branch of the pathway by which statins regulate the profile of lipoproteins in the blood. The first, now-classical branch involves sterol lipids and blocks LDL synthesis. The second involves the nonsterol products of mevalonate and PPARa and...Study sheds new light on how the 'mind's eye' works
...n the Nov. 16 issue of the journal Nature, further defines the role that individual neurons play in the brain during imagery and builds upon previous UCLA findings. "Our research helps clarify how the mind's eye works," said lead author and UCLA neurosurgeon Dr. Itzhak Fried. "Visual images can be generate...October Geology and GSA Today highlights
...ern California. Carlos Rivero et al. This article defines a new blind-thrust system in coastal southern California that threatens the Los Angeles and San Diego metropolitan regions. An integrated approach documents recent activity in the blind thrusts by combining geophysical, seismological, and coastal tec...Program shown to help non-alcoholics reduce drinking 66%
...tually develop a dependence on alcohol. DrinkWise defines a risky drinking level as more than 1-2 drinks a day for women and people over 65, and more than 1-3 drinks a day for men. Lower-risk weekly limits are no more than 7 drinks for women and those over 65, and no more than 10 for men. A "drink" is defin...Researchers decipher chemical 'cross talk' that determines survival of immunecells
...and cellular pharmacology. "It is the fabric that defines the state of the cell at any given time and determ...s of T cells survive, and the process of selection defines the very nature and effectiveness of the arsenal we depend on for life. Jamieson and Yamamoto also...Membrane protein research yields new insight into inner workings of the cell
...location of the resonance patterns in the spectrum defines the tilt of the helix within the membrane. Indeed, it is possible to get this topological information on a helix without signal assignments -- the first time this has been possible in NMR spectroscopy. ...PSA level predicts future prostate growth
...ndicator of prostate cancer and enlarged prostate, defines prostate volume by measuring the amount of protein produced by prostate cells. If a man's PSA level is high, he has more prostate cells, indicating growth of his prostate. The prostate, a walnut-sized bundle of glands, surrounds the urethra. If it ...Scientists discover how to make nanostructures assemble themselves
... engineered mask is not necessary. The mask merely defines the outline of the pillar array. "Here the polymer will form itself, without a mask. It's really wonderful," says Chou. Another advantage is that LISA could work with a wide variety of materials. Currently, Chou is testing LISA in the same material...New books view storms, the stratosphere, and more
... Sons, 1998, 298 pp.,ISBN: 0-471-97354-8. The book defines and assesses the hurricane problem, focusing prima...This work is aimed at a broad audience. The author defines El Nino,describes its far-reaching impacts on climate and society, and discusseshow those impacts mi...... Louis, July 9, 1999 -- A paper in today's Science defines a major step in thecomplex molecular dance that the immune system performs to protect our bodiesfrom viruses and other foreign invaders. The work may one day suggest ways tothwart inappropriate immune responses that cause early onset diabetes and pla...Multiple Chemical Sensitivity: A 1999 consensus
...n theMay/June 1999 issue (volume 54, number 3). It defines MCS according to sixcriteria, the first five of which were identified in a survey of 89clinicians representing a diverse range of medical specialties and opinionsthat the Archives published in 1993 (see Nethercott JR, Davidoff LL, CurbowB and Abbey H...Newly discovered gene family may regulate important biological processes
DALLAS - June 11, 1999 - A newly discovered gene defines a family that appearsintegral to the creation of c...lar humanproteins in many tissues, we believe Morc defines a new gene family that playsan as yet unknown, important function in all cells." Zinn, an investigat...Enzyme Presence Could Be Key Factor In Wolf Health, Study Suggests
...omponents of a long-sought biological equationthat defines normal healthparameters of animal populations, said Peter Constable, a researcher in theUniversity of Illinois College of VeterinaryMedicine. The enzyme's presence also strengthens the domestic dog's theorizedevolutionary link to gray wolves(Canis lu...Cell Suicide Prevented By Survival Signals
..., 1998, issue of the journal Cell ,Steller's team defines a precise molecular target that allows cells from thefruit fly Drosophila to survive in the presence of death-inducingstimuli. For the last several years, influential researchers such as Martin Raffof the Medical Research Council Laboratory for Mo...Heart and Soul: The Blood Vessels And Brain Use Common Guide
...l receptor molecules mediating a given signal that defines a cell'sspecific response. Many other questions remain, such as how far the two systems overlap. Incollaboration with Johnathan Raper of the University of Pennsylvania, whocodiscovered the collapsin/semaphorins, Klagsbrun is now testing whet...Good Ergonomics Is Good Economics
...rol of systems. It is this technology that clearly defines us as a unique, stand-alone discipline, that identifies who we are, what we do, and what we offer for the betterment of society. Although they may come from a variety of professional backgrounds, such as psychology, engineering, safety, the rehabil...Mutant Gene Not Sole Explanation For Hiv Non-Progression
...g long-term nonprogressors. The LIR defines long-term nonprogressors as people who have been HIV-infected for more than seven years, have stable CD4+ T cell counts above 600 per cubic millimeter (mm 3 ) of blood, have no ...Nitric Oxide Found To Control Cells By Turning On Genes; Suggests New Role In Health And Disease
DURHAM, N.C. -- In a discovery that defines a new message system insideliving cells, a team of researchers led by Duke University Medical Centerreports finding that the chemical nitric oxide is a universal signalingmolecule that can control basic life processes down to the level of thegene, th...