Brain circuit may permit scientists to eavesdrop on memory formation
...ournal Nature . According to Schuman, the finding sheds light on a central question in learning and memory research that concerns the roles of two brain structures, the hippocampus, which is involved in memory formation, and the neocortex, which is associated with higher brain functions. "There are two ke...Botulism bug says no to nitric oxide, provides key to molecule's role in human cell signaling
...ng Clostridium botulinum detects nitric oxide (NO) sheds light on how NO connects with its receptor protein in humans to govern crucial processes in the cardiovascular, neurological and immunological systems, said senior author C. S. Raman, Ph.D., assistant professor and director of the Structural Biology ...'Junk' DNA may be very valuable to embryos
A new study sheds light on events orchestrating the changes when mammalian eggs are fertilized and become embryos. Researchers have discovered that expression of genes in mouse eggs and very early embryos is activated in part by regions of DNA called retrotransposons,...UCSD biologists discover chemical important in guiding visual system development
... tuning of connections," says Feller. "This study sheds light on the important question of how spontaneous activity is generated, but we still have much to learn about the details of the cellular processes involved." ...Poisoning solved after millions of years
...est issue of the Palontologische Zeitschrift which sheds light on the possible cause of death. While examining the fossils the researchers became aware that the deaths must have occurred at the same time of year in different years. The five pregnant mares which were found at completely different levels in ...Free radicals and fertilization: Study reveals egg protection secret
...rce of infertility. Wessel said their finding also sheds light on the contributions of free radicals to reproductive biology. Typically, free radicals damage cells. But Wessel said these molecules can also be helpful, killing germs, reducing high blood pressure or, in this case, protecting fertilized eggs....Microbe's genome reveals insights into ocean ecology
...irst author, Mary Ann Moran, says the DNA sequence sheds new light on ecological strategies that sustain microbial life in the world's oceans. "This genome is especially significant for the new theories it will generate about the workings of the ocean," says Moran. "It provides new ideas and tools ...Iceberg poses no threat to Antarctic personnel
...ch the shelf--which is roughly the size of Texas-- sheds pieces much as human fingernails grow and break off. The berg initially drifted toward McMurdo Sound and grounded near Cape Crozier on Ross Island. It has since broken into pieces that still are very large. Some remain in place, but the largest spli...Yo-yo diet redistributes toxins in body tissue; Olestra+caloric cut boosts toxic excretion
...ol of Medicine team is reporting new research that sheds light into how diet affects retention and re-distribution through the weight gain-loss-regain cycle of chlorinated hydrocarbons, which include DDT, PCBs and dioxins. They also looked at the effects of the additive olestra, which is made by Procter & ...No blind mice, thanks to UF scientists
...nt and less destructive alternative." The research sheds light on the mechanisms of diabetic retinopathy and the various functions of SDF-1, said Nadir Sheibani, an assistant professor of ophthalmology and visual science at the University of Wisconsin-Madison Medical School. "Many factors are at work durin...Predator fish heat their eyes to track prey
...their eyes. A new investigation reported this week sheds important light on the purpose of warming the eyes and the advantage that "warm eyes" confer on ocean predators. Swordfishes, which hunt in water as cold as 3C (about 37F), can maintain their brain and eye temperatures 10C15C (18F 27F) above ambient ...Study provides insights on why some prostate cancer becomes resistant to hormone withdrawl therapy
...se is resistant to hormone withdrawal, the finding sheds light on why most men with advanced prostate cancer treated with hormone-withdrawal therapy fail to be cured. The work opens the door to discovery of new, more effective therapies, according to Norman Greenberg, Ph.D., a member of Fred Hutchinson's C......y, in a related commentary, remark that "the paper sheds light on the role of SOCS2 protein in modulating GH signal transduction" and that understanding the regulation of GH signaling "will be critical in developing treatments for disorders of this system, including acromegaly (a result of excess GH) and g...Joslin scientists show knocking out two key signals will cause diabetes
...f the Journal of Clinical Investigation, the study sheds new light on a complex question: How do cells normally process the hormone insulin and what goes wrong in diabetes? An estimated 18 million Americans have type 2 diabetes, and about one-third do not even know they have the disease. In this disorder, ...Emory researchers find more evidence for children's growth spurts, pain
...leagues at the University of Wisconsin-Madison now sheds some light on this childhood phenomena. In a five-year study using lambs, the research team found that leg growth occurred primarily when the animals were at rest. While the research does not provide a definitive link to nocturnal growth and the pain...Studies reveal methods viruses use to sidestep immune system
...s by researchers at UT Southwestern Medical Center sheds light on the mechanisms used by viruses to thwart a host's immune defenses and may aid in the development of more effective drugs to fight hepatitis C and West Nile viruses, as well as the flu and the common cold. In a study to appear in a March iss...Genome of deadly amoeba shows surprising complexity, evidence of lateral gene transfer
...ts of the human gut. Identification of these genes sheds new light on the unusual shared biology between the parasitic amoeba and anaerobic gut bacteria. The E. histolytica genome sequence is expected to help in the development of new vaccines as well as diagnostic tests that can distinguish the amoe...Linking brain to mind in a common genetic disease
...lities more than their verbal skills. New research sheds light on this split in abilities by investigating how differences in brain structures may influence how the mind works. Researchers at The Children's Hospital of Philadelphia, studying a common chromosome disorder, have used high-tech imaging tools ...Symbiotic bacteria protect hunting wasps from fungal infestation
...bacterial species a relationship that potentially sheds light on how bacteria can be successfully utilized by higher organisms in defensive mechanisms against other microbes. In the new work, researchers show that a solitary ground-nesting wasp, the European beewolf, harbors Streptomyces bacteria in uniqu...Cooperation is keya new way of looking at MicroRNA and how it controls gene expression
...s Research Institute is reporting a discovery that sheds light on an area of research fundamental to everything from the normal processes that govern the everyday life of human cells to the aberrant mechanisms that underlie many diseases, including cancer and septic shock. The discovery concerns tiny fragm...