Neuroscientists discover new cell type that may help brain maintain memories of smells
...tors found that the same biological machinery that helps the olfactory brain to remember smells is identical to the machinery that enables other types of memories in the cortical brain region most susceptible to damage in this debilitating disease. "By understanding the biological process that allow us ...MiRNA fingerprint identified in platelet formation
...'s original instructions. They now know that miRNA helps to regulate many key biological processes, including cell growth, death, development and differentiation. Dr. Carlo Croce, director of Ohio State's Human Cancer Genetics Program, was the first to discover a link between miRNA and cancer. In the curr...Molecule does more than slice and dice RNA
...-rays, the x-ray beams are scattered in a way that helps researchers define the overall structure of the crystallized protein, as was the case with Dicer. Knowing how the atoms of specific molecules are arranged permits researchers to tease out their functional features and show how they go about their bus...Advanced genomics and proteomics improve the diagnosis and treatment of a deadly lung disease
...-rays, the x-ray beams are scattered in a way that helps researchers define the overall structure of the crystallized protein, as was the case with Dicer. Knowing how the atoms of specific molecules are arranged permits researchers to tease out their functional features and show how they go about their bus...Research details how a virus hijacks cell signals to cause infection
...volved to bypass the body's defenses. "This study helps to explain how group B coxsackieviruses infect cells," said Jeffrey M. Bergelson, M.D., a pediatric infectious diseases specialist at The Children's Hospital of Philadelphia. "We found new steps in the virus life cycle." Dr. Bergelson's study, co-au...Report finds cruise industry is protecting the precious places it visits
...or director for travel and leisure at CELB. "This helps to ensure that the positive actions being taken can be sustained over time and replicated by others who operate in environmentally sensitive cruise destinations." From Ship to Shore provides several case examples of successful environmental and cult...Polymer aids in blood clotting, pointing way to new treatment
...r known as polyphosphate speeds blood clotting and helps clots last longer. The paper appears online this week (Jan. 9-14) on the PNAS Web site. Polyphosphate was shown to have three important roles, said James H. Morrissey, a biochemist in the U. of I. College of Medicine at Urbana-Champaign. The inorgan...Georgia Tech accelerates drug discovery with new IBM supercomputing cluster
... costs by almost 15 percent. The cluster solution helps increase the overall performance of the Center's datacenter while lowering its total cost of ownership. The speed and flexibility of the systems also reduce the time it takes to complete research projects, allowing the Center more time to explore new...New gene reduces retinal degeneration in fruit flies
...archers have discovered a gene in fruit flies that helps certain specialized neurons respond more quickly t...r times faster than normal neurons. Because Lazaro helps fly TRP channels work at their maximum, it is possible that a Lazaro-like gene in mammals might also...St. Jude projects 90 percent cure rate for ALL
...patient to treatment," Pui said. "That information helps us to determine how intensive the rest of the therapy should be. Our goal is the complete eradication of leukemic cells with the least toxicity to the children." The continued improvement in diagnosis and treatment made possible by MRD, pharmacogeno...Sociality of sweat bees evolved simultaneously during climate change
...o emerge instead of one. The first brood (workers) helps raise the second brood (reproductives). Danforth, who teaches Alien Empire: Bizarre Biology of Bugs (Entomology 201), a two-credit course in insect biology, and maintains a Web site on bee phylogeny, http://www.entomology.cornell.edu/BeePhylogeny...Zebra finches remember songs dad sang
...aper. "They provide neurobiological evidence that helps explain human infants' acquisition of speech." Vicario, Phan and Pytte worked with zebra finches, tiny songbirds native to Australia and favored by researchers because they breed well in captivity and all year- round. There are other animals that al...MBL leads effort to update E. coli genome
...l as the description of gene products. The process helps scientists to determine gene function. During the MBL workshops, Riley and her colleagues assigned known or predicted gene functions to each E. coli K-12 product based on previously known experimental evidence or sequence analysis. "We cooperated t...Variation in bitter-taste receptor gene increases risk for alcoholism
...In this study, they concentrated on TAS2R16, which helps regulate the response to bitter tastes. They found a single base variation in the TAS2R16 receptor gene that seemed to put people at an increased risk for alcoholism. In cell culture experiments, Goate found that the variant receptor produced by thi...Poison dart frog mimics gain when birds learn to stay away
.... The birds' learned avoidance and generalization helps explain how the harmless mimic frog can be more abundant than its model. (It's generally believed that if a mimic outnumbers its model, the system would break down because predators would stop associating color patterns with toxicity.) If the mimics...Most human-chimp differences due to gene regulation ?not genes
...ay be important, at least in certain tissues. This helps open the door to a functional dissection of the role of gene regulation during the evolution of modern humans." To measure changes in gene expression from different species, White and Gilad developed the first multi-species gene array. This allowed...Hopkins researchers discover genetic switch that turns off an oxygen-poor cell's combustion engine
...y unrecognized role played by the gene HIF-1 as it helps cell survive when a lack of oxygen decreases production of an energy-rich molecule called ATP and increases production of toxic molecules. ATP supplies energy the cell needs to perform each of its many chemical reactions and tasks, and in this way a...Groovy protein essential for promoting cancer development
...shrink during cell division ?a normal process that helps limit cells' lifespan. Cancer cells, however, usually find a way to turn telomerase back on, achieving a dangerous immortality. "Getting telomeres replicated again is required for carcinogenesis to proceed," Cech explained. "It's an essential step ...Report lists top 20 most-vulnerable African carnivores
...shrink during cell division ?a normal process that helps limit cells' lifespan. Cancer cells, however, usually find a way to turn telomerase back on, achieving a dangerous immortality. "Getting telomeres replicated again is required for carcinogenesis to proceed," Cech explained. "It's an essential step ...Hap1 protein links circulating insulin to brain circuits that regulate feeding behavior in mice
...sed feeding behavior in the mice, and our research helps explain how Hap1 is linked to feeding-related molecules such as insulin, and to hypothalamic neuronal function," said Xiao-Jiang Li, PhD, professor of human genetics at Emory University School of Medicine and senior author of the study. "GABA is kno...