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Tag: "moves" at biology news

Cellular message movement captured on video

...en actin is chemically removed, paxillin no longer moves and its fibrous structures disappear. “As least by showing that paxillin and actin filaments move together we have some insight into the possibility of how paxillin can transmit information from one region of the cell, such as the periphery, to an...

Simulations unravel outer membrane transport mechanism

...ons between proteins, particularly when one domain moves into and out of a structure like a beta-barrel, said biochemistry professor Emad Tajkhorshid, principal investigator on the study. “It’s very difficult to assess this experimentally because they have to look at the accessibility of certain (amino aci...

The insect vector always bites twice

... in the vector’s body. In most cases, the parasite moves back into the vector’s salivary glands in order to be transmitted to the human host when the insect bites again to take another blood meal. Morbidity among infected people is therefore associated with the degree of exposure of the subject to insect v...

Studies to find better ways to preserve human eggs, ovarian tissue under way

...ide. Liquid freezes and the water inside the cells moves out gradually so they dehydrate,” Dr. Song explains. But, for more complex structures, such as a human egg or ovarian tissue, resulting ice formation can be destructive. “Ice crystals break up your inside organelles. That is what hurts eggs, which...

Now, self-healing materials can mimic human skin, healing again and again

...erface of the coating and substrate. Healing agent moves from the capillary into the crack, where it interacts with catalyst particles. If the crack reopens under additional stress, the healing cycle is repeated. “Ultimately, the ability to achieve further healing events is controlled by the availability...

Reconstructing the biology of extinct species: A new approach

... has documented the link between the way an animal moves and the dimensions of an important part of its org.... These structures are filled with a fluid, which moves within the canals when the animal moves. The fluid's movement is sensed by special cells that send ...

Putting feelings into words produces therapeutic effects in the brain

...ponse you get when you feel angry,” he said. “This moves us forward in beginning to understand the benefits of mindfulness meditation. For the first time, we’re now applying scientific principles to try to understand how mindfulness works. “This is such an exciting study because it brings together the B...

New Brandeis research sheds light on memory by erasing it

...t when LTP is induced (as during learning), CaMKII moves into the synapse. ...

DNA repair proteins monitored at double-strand break

... so that they could better control when the enzyme moves into the nucleus and cleaves the DNA. The team then used a biochemical technique called chromatin immunoprecipitation to collect and identify repair proteins and show where each one bound to the DNA. ...

'Short-circuit' found in ocean circulation

...at much of the overturning circulation - how water moves and mixes vertically - around Antarctica takes place just around the tip of South America and in the small region in the Atlantic south of the Falklands, called the Scotia Sea. Co-author Prof Andrew Watson, from the University of East Anglia’s Sc...

Parasites' impact goes beyond host to affect ecosystem

...ingua, which first lives in the snails?gonads then moves to a fish as its second host. Shorebirds ?more prevalent on Appledore than on the mainland ?are the final hosts, contracting infection by eating infected fish, then in their feces excreting the eggs of C. lingua, which are in turn eaten by the snails...

Deconstructing brain wiring, one neuron at a time

...iagram, you could begin to understand how the chip moves electricity and how that operates the computer." Neuroscientists also want to deconstruct the flow of electrical signals in the extraordinarily complex architecture of the brain and then correlate these neural circuits with such brain functions as...

Glucose triggers brain cell death in rats after hypoglycemic coma

...to humans. Insulin is an essential hormone that moves glucose from the bloodstream to individual cells, where it is broken down and used for energy. Diabetics do not produce enough of their own insulin and must take it several times a day. A severe insulin overdose can reduce levels of glucose in the...

New compound prevents alcoholic behavior, relapse in animals by blocking stress response

... Koob, PhD, of the Scripps Research Institute. "It moves the field over another translational barrier, closer to the day when the dark side of addiction is treated." The new findings build on previous work showing the effectiveness of blocking certain CRF receptors—proteins that bind CRF and make it ac...

Synthetic peptide targets latent papilloma virus infections

...w (bovine) papilloma virus has shown how the virus moves into new cells. It carries its genes in the form of a circular DNA plasmid that nestles in the nucleus of the cell and makes use of the cellular machinery to generate more copies of itself. Each cell can house hundreds of plasmids. When the cell di...

Bisexual fruit flies show new role for neurochemical

...cientists think about -- the neurotransmitter that moves in message packets across the synapse. Instead, it is what Featherstone calls ambient extracellular glutamate, which just floats around the nervous system and has generally been ignored because no one knew where it came from or what it was doing. F...

Robotic therapy helps restore hand use after stroke

...locks Test, which assesses manual dexterity as one moves blocks from one side of a box to another in one minute. The patients also developed a 17 percent greater range of motion in their hands and wrists and were rated as less disabled on a standard occupational therapy assessment tool called the Fugl...

New technologies coming too fast for Indian farmers

...ndocumented pattern of fads, in which each village moves from seed to seed, reflects a breakdown in "environmental learning," leaving farmers to rely on "social learning." Stone refers to this situation as "de-skilling." "The bottom line is that the spread of Bt cotton doesn't so much reflect that it wor...

Study to explore using magnets to correct 'sunken chest'

...le force over a longer time, like the orthodontist moves your teeth." The use of the magnets has been deemed safe by the U.S. Food and Drug Administration, which has reviewed and approved the 3MP device. The internal magnet is laser-welded in a titanium case, assuring its safety. The magnets have been f...

Gene expression test reveals ER and HER-2 status of breast tumors

... better than, existing pathology tests. "This moves us closer to developing an integrated single genomic test that could estimate the risk of cancer relapse after surgery, determine the ER and HER2 receptor status, and also gauge the sensitivity of the tumor to hormone therapy and chemotherapy," says ...

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