In chemical genetics, a new strategy could speed drug discovery
...e for a particular ice cream flavor, but you can't remember the name. So you decide to taste all 32 flavors at the ice cream shop, one at a time, until you find the flavor that gives you that delicious hit. Genetic suppression works something like this. Peterson and his colleagues adapted this approach, cre...Even fish don't swim well when they're young!
Do you remember learning to swim? Thrashing around, floundering, until suddenly it all clicks into place and a few feeble strokes of doggy-paddle propel you away from your parent's arms. Surely, you think, fish must be born as expert swimmers. Actually, fish larvae ...Memory, speed of thinking get worse over time with marijuana use
... abilities, especially in the ability to learn and remember new information," said study author Lambros Messin... non-users. In a test where participants needed to remember a list of words that had been read to them earlier, the non-users remembered an average of 12 out of...Hamster study shows how our brains recognize other individuals
...s clearly have an incredible ability to recognize, remember and store huge amounts of information about individuals -- even individuals we have never actually met. This ability is the core of circuits that one might call the social brain." Johnston's team uses hamsters to study recognition because their brain...With a sense of timing, hummingbirds know when they've last emptied a flower
...rvals, researchers have found that these birds can remember when they last visited individual flowers. This so...hat defend territories containing many flowers can remember which flowers they have visited. Because many flowers refill their nectar supplies, it would be very...... based on their effectiveness. Clearly, chimps can remember who's a good and who's a bad collaborator. Bad collaborators suffer by not being chosen next time.' This complexity of cooperation means that humans and chimpanzees might have inherited our cooperative abilities from our common ancestor 6 million yea...Plastic surgeons countdown first full facial transplantation
...ng time in plastic surgery, but it is important to remember that, at least in the near future, facial transplantation will be a last resort procedure performed on carefully selected patients on a case-by-case basis." In the studies, doctors used cadavers to perform mock facial transplantations in order to out...Experimental drug reverses key cognitive deficits, pathology in Alzheimer's
...ted mice resulted from their relative inability to remember from day-to-day the location of the platform. In another memory test, however, the treated mice did not show improved performance compared to untreated mice. In this test--which depends on the function of another Alzheimer's-affected brain region cal...UF study: World shark attacks dipped in 2005, part of long-term trend
...me people spend in the water, he said. "We need to remember there have been huge changes in how humans use the water over the last 20 to 30 years," Burgess said. "When our parents and grandparents went into the water, they maybe wiggled their toes, or if they were very daring, jumped in and swam. People of ou...Eating less fat may lower breast-cancer risk, have little impact on colon-cancer, heart-disease risk
...he colorectal-cancer findings. "It is important to remember that cancers often take decades to develop, and we may only be seeing the early stages of the impact of a low-fat diet intervention on the risk of colorectal cancer and other diseases," said Beresford, a member of the Hutchinson Center's Public Healt....... Synapses also play a role in determining what we remember and what we forget. When we learn, both the structure and the functional characteristics of these contact sites change. Scientists are only now beginning to understand the molecular processes which cause that change. Researchers led by Michael Kieble...Long-term memory controlled by molecular pathway at synapses
...cked out, so was long-term memory, and flies would remember to alter their behavior in the presence of the shock-linked odor for perhaps an hour; that is, they only had short-term memory. When the pathway was normally active, the flies remained averse to the odor for a day or more." Kunes says the various pro...Zebra finches remember songs dad sang
..." A young zebra finch will hear his father's song, remember and imitate it. At first, the bird's efforts are c...ey period in infancy. In fact, the young bird will remember and imitate the songs of songbirds from other species, provided they fall within a certain range. Wh...Researchers know what you were about to say; fMRI used to detect memory storage and retrieval
...ull out the entire thought, much like when you try remember where you put your keys last night," Polyn said. ... might trigger associated memories, leading you to remember that your keys are next to the sink. We refer to this phenomenon as 'bootstrapping.'" According ...Rutgers researcher uncovers new gene for fear factor
...be at the root of the noted failure in the mice to remember the lessons of learned fear, such as avoiding places that gave electric shocks. In addition, the researchers analyzed Stathmin-deficient mice for their anxiety levels by recording their performance in mazes. Mice instinctively avoid open spaces, but ...Grants to fund research on preparing for bioterrorist attack
...mune system is the ability of specialized cells to remember diseases once encountered. Memory cells respond more quickly and fiercely to the same virus upon a second infection. Vaccine makers rely on this quality, introducing weakened versions of a pathogen to the system, so that it develops memory cells re...ECCO 13 - One voice, one vision needed to overcome cancer in Europe
... experience and work together." It is important to remember that if European nations invest money into healthcare in the short term, they will awarded with long term financial benefits, as better technologies and treatment care will lead to both healthier people and a larger workforce, resulting in a stronger...Sisyphean movement of motor proteins may help preserve DNA integrity
... for the helix that the enzyme unzips, but instead remember how Rep snaps back." In cells, single strands of DNA often occur when something is wrong, Ha said. The recycling action, he said, may represent a desirable function of the protein by keeping it engaged on a single strand, allowing time for repairs th...Your brain cells may 'know' more than you let on by your behavior
...y associative memory is to train rhesus monkeys to remember arbitrary pairs of symbols. After being shown the ...g of the symbols." So, while the monkeys tried to remember the associations and made their error-prone choices, the scientists observed signals from the nerve ...Scientists zero in on memory-related proteins at the core of Alzheimer's disease
...lled Fyn. The inability of Alzheimer's patients to remember events from a few days ago may be linked to the lack of proteins that strengthen the contact points, or synapses, between neurons in the brain, according to study findings. Much research points to the idea that, far from having a single cause, Alzhe...