DNA Enzyme Works In Crystal Form; Yields New Insights Into Gene Copying
... to affect it." The biochemists also will perform experiments to sort out the chemicalsteps by which polymerase copies DNA, Beese said. "The structural details of howthe process proceeds are unclear," she said. "We know translocation must occur,but whether it happens before or after the nucleotide i...Genetic Risk Factors For Anorexia Nervosa Sought
... stretch of thegenome, prompting the scientists to perform a closer analysis of that segment ofDNA. According to Berrettini, anorexia nervosa is defined as an eatingdisorder characterized by a refusal to ingest sufficient quantities of food tomaintain 85 percent or more of normal body weight, an i...Microsurgery Made More Accurate With Virtual Measuring Tool
...ent limitations in the human operator's ability to perform the alignment task, since this task relies solely on retinal disparity cues for aligning the virtual pointer to real object features. Other powerful depth cues normally used during real object to real object alignment tasks, such as distant object oc...Reagent Strips Not Sufficient In Detecting Bacteriuria In Early Pregnancy
...found that reagent strips for testing urine do not perform to a sufficient standard and therefore they advocate that all patients should have at least one urine specimen formally cultured in early pregnancy to exclude bacteriuria. Contact: Dr Douglas Tincello, Research Registrar, Department of Urogynaecology...Emerging Field Of Industrial Ecology
...amounts of materials areused to make products that perform the same functions as their predecessors. The ultimate example is the integrated circuit, Graedel said, in which packingdensity has increased exponentially since 1960. Less energy intensity, which means adopting manufacturing processesthat r...Leftover Fetal Cells May Affect Development Of Scleroderma
...ed the new theory gel in her mind. They frequently perform bone marrow transplants, and much discussion revolvesaround GVHD, which, by definition, she says, is chimerism. Moreover, clinicallyGVHD looks like scleroderma. Then two years ago, Dr. Bianchireported that fetal cells can persist in the mother's ci...Candidate Regulator Of The Temporal Component Of Neurotransmitter Release Identified
...r differences are speed - synaptic vesicles can perform secretion within 200 microseconds after arrival of a stimulus - and tight control by calcium levels, which must rise thousandfold to trigger vesicle fusion. Using a combination of molecular biological and physiological techniques, the gro...Measurement Technique Provides Snapshot Of Cell Physiology
...eof individual molecules, the researchers need not perform any additionalchemistry in order to identify or quantify compounds. "Since we arenot relying on any chemical reactions, we are able to measure the true amountof chemicals that are contained in the cell," Fuller said. While most measurement techniqu......f the menstrual cycle, may perform the critical task of sustaining the growth of egg follicles until ovulation, said Michael W. Sullivan, M.D., UB assistant professor of gynecology and obstetrics and lead researcher on the study. ...Liquid Crystals Light Up Simple Chemical Test
...g about this approach is that the procedure usedto perform the detection is very, very simple, " said Nicholas Abbott,the UC Davis associate professor who led the chip's development. "Whatwe're proposing is comparable to the level of sophistication in a liquid-crystalwatch and, as we all know, that technolog...... in lung cancer. The government has also agreed to perform expeditedreviews of 12 other clinical indications for PET. In addition, the Food, Drugand Cosmetic Act was changed this year in a bill sponsored by Senator Stevens,Chair of Appropriations, that directs the FDA to design a new review andregulatory app...Seeing How the Brain Changes During Aging
...om 23 to 86. The researchers asked each person to perform motor andcognitive tests and then used the PET scan to "watch" how their dopamine systemsworked. The older the person, the more poorly they performed the tests and the lower their level of dopamine activity. Fowler's group has alsodeveloped a radiotr...Novel Method Of Gene Replacement Reported By University Of Washington Researchers
...n, report the successful useof a modified virus to perform a novel method of gene replacement that may be animportant step toward overcoming obstacles to efficient gene therapy. Theirfindings are reported in the April issue of Nature Genetics. Until now, gene therapy researchers have focused on gene...UPMC Reports On New Liver Assist Device
...'s largest liver transplant program, wheresurgeons perform more types of transplants than any other center. ExcorpMedical, Inc., is an emerging company focused on the therapeutic application ofcell-culture and bioengineering technology.......ell proliferation. CAKs thus seem to perform important functions throughout the life of a cell ...on, as well as DNA repair, where they perform a distinct function, controlling carcinogenesis. Scientist are eager to find out how pl...Protein Implicated In Multiple Sclerosis
...refore might remain in remission. "We wouldlike to perform a pilot study in five to six years," Trotter says. A grant from the National Institute of Neurological Disorders and Strokesupported this research. Trotter JL, Pelfrey CM, Trotter AL, Selvidge JA, Gushleff KC, Mohanakumar T,McFarland HF. T cell rec...Plants - Factories Of The Future
...his research has revealed a family of enzymes that perform a range of chemical modifications to fatty acids. This knowledge should enable the team to isolate other genes from the family and further expand the types of oils produced in plants. "Our aim is to be able to design these enzymes to produce fa...Duke Researchers Call Gene Therapy A Promising Strategy For Sickle Cell Anemia
... ribozymes, scientists believedonly proteins could perform such cutting and splicing activities. Sullenger hasdevised a strategy to use this natural process to fix defective RNA -- in thiscase, a defective globin gene. "The fundamental role of RNA molecules in cells is to help manage theuse of geneti...FDA Approves Hopkins-Designed Implants To Restore Lost Voices
...post-operativeswelling. Cummings and Flint perform about 80 of the procedures each year. --JHMI-- Johns Hopkins Medical Institutions' news releases are available on aPRE-EMBARGOED basis from the Office of Communications and PublicAffairs' direct e-mail news release service. To enroll, call 410-955...As A 'Carbon Sponge,' Iron-Poor Coastal Waters Can't Always Do The Job, NaturePaper Shows
...s, carbon dioxide--butcertain coastal waters can't perform this trick because they lack iron, a University of Delaware researcher reports in the June 11 issue of the journal Nature . Just as iron-rich foods help children grow stronger, iron in the ocean gives aboost to microscopic plants called phytoplankton...