Tag: "turns" at biology news

Cold-climate creatures may be the ultimate survivors of global warming, study finds

...to be the most resilient to global warming, but it turns out they may have a harder time surviving as their habitat temperatures increase," he added, noting that a half-degree increase in the Earth's temperature could be enough to wipe out countless porcelain crabs: Thermal tolerance Stillman's experimen...

Women are more likely to suffer recurrent miscarriages if their first child is a boy

...munization against male-specific antigens. If this turns out to be the case, then I believe that we already have a quite efficient treatment, as our trials have shown."...

Human stem cells improve movement in paralyzed rats

...on the brink of death -- to survive," he says. It turns out that the implanted human cells spew out two im...n stem cells that had become motor neurons, but it turns out that the two observations weren't related," says Kerr. "We saw functional recovery that wasn't d...

UT Southwestern researchers pinpoint role cell surface protein group plays in brain function

...formation of the synapses. The surprise is that it turns out not to be involved in the formation of synapses but what happens subsequently to activate synapses." To identify the role of these proteins, the researchers used genetically engineered laboratory mice that lacked alpha-Neurexin. The absence of th...

Rapid movements of living biomolecules visualised

...a certain type of RNA or protein. This mobility in turns provides further information about the functioning of the molecules. In addition to the movement of the biomolecules, Molenaar also visualised the interaction of different biomolecules. For this he used FRET microscopy (Fluorescence Resonance Energy...

Key regulatory enzyme is a molecular 'octopus'

...ecules." Thus, the cellular "stop signal" not only turns off the G protein, but immediately tags the receptor for recycling into the cell interior and turns on other signaling pathways, said Lefkowitz. His laboratory identified that enzyme as GRK, but a cen...

Injection prevents blinding blood vessel growth in mice

... normal blood vessels are damaged by disease, VEGF turns on its receptor, igniting a chain reaction that culminates in new blood vessel growth. However, the backup blood vessels are faulty; they leak, bleed and encourage scar tissue that detaches the retina, resulting in severe loss of vision. Such growt...

Protein critical for development in fruit flies found to aid healing of cuts and wounds in mammals

...protein called a "transcription factor" because it turns genes on and off- in bringing cells together during the embryonic development of Drosophila, the fruit flies commonly used in genetic research. For many years, Drosophila biologists have even suspected that the same biochemical pathways involved in a...

Born under the sun: UV light and the origin of life

...ongation of RNA chains. "The suggested mechanism turns the high UV levels on primordial Earth from a perceived obstacle to the origin of life into the selective factor that, in fact, might have driven the whole process", write the authors. "It seems quite unlikely that the extremely effective UV-quenchin...

Solid management, natural resilience both key to sockeye success

...lassic example of a sustainable fishery. As it turns out, it's also about having a large number of population segments, or components, the fish in each programmed to breed and thrive under conditions somewhat different from the fish in other components, University of Washington researchers report in th...

Clue to prion formation found, offers step toward treating puzzling diseases

...ed agents of infection. Still unknown is how PrPC turns into PrPSc, which is characterized biochemically by being resistant to enyzme digestion. The researchers created a system to study the conversion into PrPSc in a test tube. We found that we could inhibit this conversion with compounds that block f...

Genetic reconnaissance identifies new colon cancer genes

...rks so well in chronic myeloid leukemia because it turns off a tyrosine kinase that dramatically reverses the cancer process."...

Purdue biologists crystallize technique to expand protein research

...in, but just enough to keep the complex twists and turns in a protein molecule's structure from losing their uniform shape. They called their creation a "protein-lipid-detergent complex." "After we put a touch of fat back in with the protein and detergent, the crystals formed literally overnight," Cramer s...

Key gene in orchestrating embryo development also fine tunes organization of the retina

... Hospital have discovered that a gene called Prox1 turns on and off at two different times during the embryonic retina development. This discovery offers important evidence of how such a complex tissue can grow from populations of cells that initially have no special function. The finding is important beca...

Researchers find viral protein that mimics its way into cells

... help us explain just how HTLV-1 turns these cells on, leading to cell replication," he said. HTLV-1 is the viral cause of adult T-cell lymphoma, as well as at least two forms of neurologic disease. In many ways, it starts a ...

Gene activated in 80% of breast cancer patients

...bility for the future.If a drug can be found which turns off the gene, it could helppeople with non-hereditary breast cancer. Non-hereditary breastcancer accounts for 95% of cases, and it is in tumors of thistype that the researchers found BP1 was active. Berg points to more than 1.2 million people diagnos...

Study of bacterial enzyme reveals one key to cancer cell survival

...a withstand attacks by the body's natural defenses turns out to be a key to human cell survival and growth and may help explain why cancer cells can multiply unchecked. Leslie B. Poole, Ph.D., of Wake Forest University Baptist Medical Center said the explanation begins with the way that bacteria -- such as...

Scientists observe nanosize microtubules 'treadmilling' across plant cells

...crotubules, and like a train following a track, it turns direction and follows them, becoming a part of the helical array," Ehrhardt said. "There's nothing actually physically moving anything, and that makes treadmilling a really unexpected mechanism for assembling higher-ordered structures," Shaw observe...

Missing protein is double-edged sword in cancer development

...ate and colon tumors. "If it turns out that a lack of E2F3 triggers the onset of a tumor by causing excessive centrosomes in a cell, then there may be some way we could prevent centrosome duplication." Normally, cancer ce...

U.of Colorado researchers solve molecular structure involved with heart disease

... a response to other heart diseases and eventually turns into heart failure, said Chen. In the Western World, cardiovascular diseases account for about 43 percent of human deaths and for about 50 percent of all human hospitalizations. The function of HDACs also is the focus of intensive medical research...

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