Scientist discover the cellular roots of graying hair
...y," yet scientists have been unable to explain the precise cause of this usually unwelcome transformation. In a report posted today on the Web site of the journal Science , researchers from Dana-Farber Cancer Institute and Children's Hospital Boston say they have found the cellular cause of graying hair whi...An unusual RNA structure in the SARS virus offers a promising target for antiviral drugs
...s, which are already under way in Ares's lab. "The precise function is something they're going to figure out, no doubt about it, and it's bound to be something of major importance," Noller said. "When you see a whole class of viruses that have this absolutely conserved structural element, it tells you there'...Human complexity and diversity spring from a surprisingly few (relatively speaking) genes
... editing with high certainty. We want to make more precise predictions regarding how a sequence subject to editing should look. "In addition, we want to find out what the consequences of this massive editing are for gene function." Maas will present his research at the Gordon Research Conference on RNA editi...No blind mice, thanks to UF scientists
...at destroy parts of retina that are not needed for precise vision in order to improve oxygen delivery to the parts of the retina that are needed for detailed vision. Intraocular delivery of agents that block SDF-1 represent an excellent and less destructive alternative." The research sheds light on the mecha...Scientists discover unique microbe in California's largest lake
...tural feature of the ribosome that makes large and precise movements during protein synthesis, but its exact function is still unknown. The next challenge, Miller says, will be to determine whether this example of instant evolutionary innovation by genetic exchange has in fact had consequences for ribosome f...Queen's discovery sheds new light on ancient temperatures
...Kyser are using chemical analysis to determine the precise attributes of the rocks and further pursue the study of the ancient environment at this time in earth's history. These measurements are being completed at the Queen's Facility for Isotope Research, one of the best in North America....New family of genes could serve as a potential cancer marker
...ols that would allow researchers to develop a more precise diagnostic test into whether the cells containing NSP are potentially tumorigenic. He adds that the in the future this gene may also be used as a specific target for cancer therapies. Drugs could be developed that would inhibit the genes' tumor-pro...Can plant research lead to new insights in cancer research?
... chromosomes. Such an occurrence can undermine the precise control system governing cell division, so that the cell begins to divide without restraint, turning into a cancer cell. New insights from an unexpected quarter In a small plant like Arabidopsis (or the mouse ear cress), processes such as DNA doub...Unusual reproductive behavior of odd ants surprises scientists
... like ants and bees, thrive on the caste system a precise division of duties among colony members. In most of these societies, environment is thought to influence whether larvae develop into queens or sterile female workers, said Steve Rissing, a professor of evolution, ecology and organismal biology at Ohi...Anti-seizure drugs slow aging in worms
...e continuing this line of research to identify the precise functions of the nervous system that cause the worms to live longer." Because the researchers found that anticonvulsants affect the nervous system of C. elegans, they also plan to use the worms as model organisms to investigate how the drugs inhibit ...Deciphering the genetic babel of brain cells
...evelopment. "The data here support the idea that a precise molecular classification of distinct classes of projection neurons is possible and provide a foundation for increasingly sophisticated analysis of stage-specific genes controlling corticospinal motor neuron development," concluded the scientists. Pao...Sinking coastlines may precede large subduction zone quakes
...orams and thecamoebians might be able to give more precise dates for precursory subsidence, since they are more sensitive than diatoms to elevation changes. Thecamoebians, for example, live only in fresh water. Looking initially at a core from Girdwood Flat, a marsh at Turnagain Arm in Cook Inlet, the site o...Intelligence in men and women is a gray and white matter
...n males and females, as well as more effective and precise treatment protocols to address damage to particular regions in the brain. For this study, UCI and UNM combined their respective neuroimaging technology and subject pools to study brain morphology with magnetic resonance imaging. MRI scanning and cogn...Priming embryonic stem cells to fulfill their promise
...aper a technique that enabled them to identify the precise mix of proteins that optimally prompted mouse embryonic stem cells to begin the differentiation process into liver cells. Bhatia, Chien, and Flaim designed the technique with other cell biologists in mind so that any of them could duplicate it with o...Choosing where to look and changing your mind
..., or fMRI, to assess areas of neuronal activity in precise areas of the brain during different tasks related to choice. The researchers asked healthy volunteers in a magnetic resonance scanner to freely choose where to look or, alternatively, told them where to shift their eyes. On some occasions, the volunt...Steroid discoveries could add bulk to crop harvests
...s. "So, in these two papers we have established a precise function for proteins that were known from genetic experiments to be important in steroid signaling, but we didn't know exactly what they were doing," concluded Chory. "These findings open the way to understanding the molecular mechanism of one of th...Racial groupings match genetic profiles, Stanford study finds
...easoning is that genetic differences may be a more precise tool for tracking groups of patients. Risch points out that this genetic analysis is costly. If people fall into the same groups using self-identified race as using genetics, then that could bring down the expanding cost of medical research....Examination of internal 'wiring' of yeast, worm, and fly reveals conserved circuits
...ng technology permitted biologists to identify the precise subunit sequence of every gene in the genomes of e...on have been combined with databases that list the precise subunit sequence of proteins as well. Cross-species DNA and protein comparisons have become routine ...Bird brains show how trial and error may contribute to learning
... bird twitters and trigger stimulations to LMAN at precise moments to elicit measurable effects on a predetermined syllable, song after song. The researchers found that different areas of LMAN tuned the same note in different directions, one area raising the pitch of a certain note and another area lowering ......t can travel through the blood and aim itself at a precise location, thereby minimizing harmful side effects,...est whether we can direct therapeutic genes to the precise location where cancer cells reside," Chen said. "This approach offers many potential applications f...