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Tag: "create" at biology news

New brain-chemistry differences found in depressed women

...n" by the PET scanner, so that the researchers can create maps of the specific brain areas where the natural mu-opioids are more or less active at any given time. In the new study, the researchers also found that the mu-opioid system was overactive in women with depression, even at baseline, when they w...

Tiny Tampa Bay fish key to evolution of immune system

...it," Ostrov said. "For example, if we're trying to create a vaccine against a specific pathogen such as anthrax, smallpox or bird flu, we have to take into account the defensive measures those and other organisms might have." Organisms such as plants, fungi and primitive animal life are classified as havin...

Scientists show drug can counteract muscular dystrophy in mice

... the most important pathways the inhibitors use to create bigger muscles involves the activation of follistatin. "If you didn't have follistatin anymore, these drugs didn't work," he says. Moreover, Drs. Sartorelli's and Puri's groups were able to show that in normal animals, follistatin is upregulated whe...

Newts which regrow their hearts

...It also seems that the heart regeneration does not create typical wound healing tissue, called a blastema. Braun explains this finding: "The heart only has a relatively small number of different cell types. This could be a reason why the regeneration of heart tissue does not require a blastema." The researc...

The power of one: A simpler, cheaper method for cell fusion

...es guide protein synthesis. It also may be used to create large quantities of different disease-specific ant... spleen (beta cells) with cancer cells in order to create a virtually immortal, antibody-producing hybrid, called a hybridoma. By manipulating the beta cells ...

Global malaria map key weapon in fight against malaria, scientists say

...e there is no information to fill in the "gaps" to create a global map of malaria risk worldwide. "How we design malaria control and measure its impact depends on knowing how much malaria exists in a given area," says Professor Bob Snow. "Like any war, knowing where your enemy is located and in what stre...

Fantastic Voyage: A new nanoscale view of the biological world

...ay lenses and prisms manipulate visible light - to create an atomic mass image of the sample. Lechene et al. developed MIMS by combining the use of a novel secondary-ion mass spectrometer developed by Georges Slodzian, from the Université Paris-Sud in France, labeling with stable isotopes and building quant...

Learning during sleep?

...erg have now shed new light on the mechanisms that create memory. According to their findings, the areas of ...se experiments to examine the brain processes that create memory. The scientists in Heidelberg developed an innovative experimental approach especially for th...

Natural anti-viral enzyme helps keep cancer cells alive, researchers find

...daptive immune system fights cancer and also helps create tissue environments permissive to cancer, Dr. White said, but a cancer-promoting role for the host defense response has not been previously seen. It's a straightforward matter to block the action of TBK-1, so this might be a promising avenue for ne...

Scientists crack genetic secrets of human egg

... the egg divides and organizes cells to ultimately create a human being. Combined with technology, the unfertilized egg might be coaxed to produce other specific cells, including stem cells, which can be directed to grow into new tissue. This potential could be used to combat diseases. Cibelli said his...

Brown scientists map structure of DNA-doctoring protein complex

... medical science, which plotted their positions to create the structural map. "The real breakthrough here is successfully using FRET to determine the structure of a large protein-DNA complex," Sun said. "Biologists now have a new tool to help them understand a variety of these complexes, including ones t...

Robotic whiskers can sense three-dimensional environment

...ad. A computer program then "connects the dots" to create a three-dimensional representation of the object. The researchers also showed that a slightly different whisker array -- one in which the whiskers were widened to provide more surface area -- could determine the speed and direction of the flow of ...

Researchers to develop active nanoscale surfaces for biological separations

...king the very membranes that surround our cells to create platforms for separating biological molecules. These "lipid bilayers," which are made up of two opposing layers of fat molecules, act as the cell's barrier to the outside world. DNA molecules move on these surfaces in two dimensions, much like object...

Fast-freeze snapshot yields new picture of nerve-muscle junction

... on a wrinkly appearance. While slow freezing can create ice crystals that tear cell structures apart, the high-pressure technique, using liquid nitrogen to flash-freeze at minus-180 degrees Celsius, makes ice appear like liquid glass and devoid of destructive crystals. Cross-sections taken of synapses re...

'Erectile dysfunction' drugs heighten natural anti-cancer activity

...ors exploit nitric oxide-producing immune cells to create a sort of "fog" that keeps them hidden from white blood cells (T-cells) that mount attacks on tumors. These NO-producing cells, a.k.a. myeloid-derived suppressor cells (MDSCs), normally use nitric oxide to help bring the immune system back down to...

Supercomputing equipment to advance the frontiers of computational biology

...hip between Rensselaer, IBM, and New York state to create one of the world's most powerful university-based ...hip between Rensselaer, IBM, and New York state to create one of the world's most powerful university-based supercomputing centers, and a top supercomputing c...

Carnegie Mellon scientists use 'green' approach to transform plastics manufacturing

...ubunits (monomers) into multiple arrangements that create specialized polymers. This technology enables production of "smart" materials that can respond intelligently to altered environments, such as changes in pressure, acidity, light exposure and other variables. ATRP is being licensed to several compa...

Mapping the mouse genome

...ps now available aside from that for humans. To create this map, they used two groups of mice: one consis...ently they co-occur. They used this information to create a genetic map that can distinguish between two points 0.37 cM apart in HS and 0.45 cM in RI. Usin...

Knockout Mouse Project

...cking out each gene one-by-one, we will be able to create a central resource for researchers and scientists ...w "KOMP" project, Children's Hospital Oakland will create the genetic material that will be used to knockout or "inactivate" mouse genes. Scientists at the W...

HIV gets a makeover

... -- and then another round of forced adaptation to create viruses that would multiply with vigor. The researchers dubbed their end result simian tropic HIV (stHIV): a form of HIV-1 that only differs from the original by about 10 percent, but can effectively infect primate cells and be used to test potent...

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