Laser technique examines movement in nucleus of living cell
...d examine its constituents, we find they no longer behave as they do in intact, living cells.To non-invasively measure chromatin movement in a live frog skin cell, Bardeen and graduate students Sara Davis and Andrew Stout combine a two-photon laser fluorescence technique with a standing-wave, counter-propag...Say what? Neurons and fat cells have a dialogue in the lab
... He expects that human neurons and fat cells would behave similarly. Turtzo discovered that nerve cells grown alongside fat cells produced more than seven times the NPY produced by nerve cells grown, or "cultured," alone. She also showed that adding insulin reduced the NPY levels in the mixed cells, but d...Fresh evidence points to marine bacteria as a source of anti-cancer drug
...ostatin 1 "flips a switch" that controls how cells behave in the body. In the case of leukemia cells, for ex... seems to bring them to their senses and make them behave like normal blood cells. The drug is now in clinical trials for use in humans....UI researchers and colleagues identify genetic changes in bacterial biofilms
...e identified a subset of genes in a bacterium that behave differently when the organism exists as a biofilm. These findings may lead scientists to the genetic causes of increased antibiotic resistance in biofilms. The study results appear in the October 25 issue of the journal Nature. The P. aeruginosa geno...Plants, insects play cat and mouse game
...n turn, adjust their phenotype - how they look and behave - and their physiological state by adapting the enzymes in their stomach to better digest the plant. This flexible cat-and-mouse strategy resulted from millions of years of co-evolution, Agrawal says. "Instead of plants evolving maximal levels of def...Scientists at UCLAs Jonsson Cancer Center discover gene's role in regulating stem cells in the brain
...in cells.) The disruption causes the stem cells to behave abnormally, which may contribute to the formation of brain tumors. "This is the first evidence of PTENs critical role in the biology of brain stem cells, but overall, our findings could serve as a foundation for addressing any disease where stem-cell...Nanoparticles in air bad news for people
...ing emissions of particulate matter. Nanoparticles behave aerodynamically like gas molecules and have a larger surface area, per unit mass, than large particles. As a result, environmental nanoparticles can penetrate deeper inside human lungs and cause more harm than larger particles because of the increase......etter understand how all sorts of living organisms behave genetically, with potentially widespread applications for agriculture, medicine, and energy," the NSF press release said. Arabidopsis is a useful model because its entire genome consists of a relatively small set of genes that dictate when the weed w...Prizes awarded in the 2002 Gottfried Wilhelm Leibniz Programme
...us substrates, and it shows that nucleic acids can behave in a way similar to antibodies. Famulok, who is opening up new ways to understand protein functions and functional genome research with his team, has received the Otto Klung Chemistry Prize as well as the Karl Ziegler Foundation Promotion Prize and o...UC Riverside scientists discover wound-healing substance
...rogress, has shown that interleukin-8 and cCAF can behave in a similar way," Martins-Green says. In December, 2001, Martins-Green and her students reported at the meeting of the American Society for Cell Biology in Washington, D.C. that IL-8 is also able to stimulate contraction and closure of wounds in chi...Is this the cell that could revolutionise medicine?
...therine has found a way to produce a cell that can behave this way," says Neil Theise of New York University Medical School....Next-generation biomaterials to help body heal itself
...ed by Professor Polak has analysed how human cells behave when they are attached to scaffolds of a specific bioactive material. They demonstrated that key genes of bone cells involved in bone formation are activated when a bioactive material designed and configured for the purpose of bone formation is brou...Battle of the sexes leads to evolutionary arms race
..."Males and females of most animal species look and behave very differently," says Rowe. "Males are often provided with various distinct traits like the bright colours of a peacock's feathers, for example. Females, however, aren't easily impressed. These elaborate traits in males have traditionally been expl...Battle of the sexes leads to a biological arms race
... males and females of most animal species look and behave very differently. Males are, for example, often provided with various weapons, bright colours or other ornaments. Females are, however, not easily impressed, and such differences between males and females have traditionally been explained by females ...Sea levels likely to rise higher than IPCC predictions
...indschadler said. He noted that these glaciers may behave quite differently from the well-studied ice streams, so more research is needed before scientists can say exactly what the West Antarctic ice sheet is doing now and what it will do in the future. Evidence of recent warming isn't limited to the Antarc...How cold! New partnership to use chilled neutrons
...udying changes in membranes overtime. Because they behave like tinywaves of energy, neutrons also makeexcellent rulers. Depending ontemperature, the length of the neutronruler can be tuned over a rangespanning from roughly the size of a single atom to the size of a moleculecomposed of hundreds or thousands ...Worm neuron research may lead to powerful model for Parkinson's study
...ipulate these dopamine neurons and the worms would behave a certain way," Blakely said. "But David, Richard, and I were worried because these neurons in worms contribute to some fairly subtle behaviors. After Richard made this line of worms having the glowing green neurons, we realized the thing we ought to...UC Berkeley researchers are developing a microsized microscope that can peek inside living cells
... said Lee. "Doctors could then see how tumor cells behave in vivo. It would also be feasible to deliver drugs directly to the tumor cell, and then view how the cell responds to the drugs." High-end confocal microscopes, which house several lasers, take up to a meter of desk space, can cost more than $1 mil...Researchers discover new mechanism that targets and destroys abnormal RNA
...e hypothesis that an mRNA nonstop transcript may behave very much like a nonsense transcript, said Dietz. In both circumstances the ribosome is deprived of the potential to see a bona fide termination codon in its proper context. One critical clue that the nonsense and nonstop mechanisms were different ...... differences. Knowing why tamoxifen and raloxifene behave like estrogen in some cells but not in others may help researchers fine-tune SERMs so they provide the benefits of current drugs without the shortcomings. Eight years ago, Brown and his associates proposed that the reason for the differences lay in o...