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Tag: "released" at biology news

Timing is everything: First step in protein building revealed

...making proteins."No one had any idea when eIF1 was released from the ribosome, or thatits release might serve ...."It's impossible to know for sure whether eIF1 is released completelyin living creatures, but in our laboratory experiments that is clearlythe case," adds Lors...

Researchers Uncover Key Step In Manufacture of Memory Protein

...ed into active mBDNF. After mBDNF is formed, it is released to the outside of the neuron, where it binds to receptors on other neurons and stimulates them to form long-term memory. Dr. Loh explained that, like other proteins, proBDNF is made inside the endoplasmic reticulum, a convoluted network of tubes and...

Inflammatory molecules released by pollen trigger allergies

... some of the blame on bioactive molecules that are released from pollen. These molecules bind to immune cells and cause them to launch a typical allergy-promoting immune response. Pollen from plants exposed to air pollutants produce more of these allergy-provoking compounds than do pollen from unpolluted area...

NYU Study Reveals How Brain's Immune System Fights Viral Encephalitis

... I interferons--proteins made by the body that are released in response to stimuli, notably infection--work in...lock the virus from forming particles which can be released and infect other neurons. This is critical, since the immune system does not kill infected precious ...

Scientists collaborate to assess health of global environment

...udies, termed sub-global assessments, also will be released in late 2005 or early 2006. Each case study will focus on a particular area, Mooney said. "This is really important because the global view gives averages, and global averages may be misleading," he said, noting that different ecosystems face differ...

Needling Chromosomes Reveals Cell Division Secret

...he two sister chromatidsadhered to one another and released at the appropriate time during celldivision. However, that understanding was based on biochemicalexperiments that revealed when the "glue" protein called cohesin thatholds chromatids was degraded during cell division. Also, microscopicstudies had sho...

New research questions basic tenet of neuron function

...rescent dye and observed how and when the vesicles released neurotransmitters, both when the neurons were at rest and when they were active. From these observations, as well as data gathered from electrophysiological techniques, the researchers found two distinct types of vesicles. "The functional difference...

Why do insects stop 'breathing'? To avoid damage from too much oxygen, say researchers

... measure not only how much carbon dioxide the moth released but also the concentration of oxygen in its trachea, the series of tubes that carry air directly to cells for gas exchange. Using a respirometer (an instrument for measuring respiration that consists of a chamber with a flow-through air system), they...

PANTHER Protein Classification System Database 5.0

...e that such a large set of pathwaymodules has been released with such detailed molecular information. Weare pleased to see that the process notation in CellDesigner has provedto be scalable and practical,?said Dr. Kitano. “We congratulate thePANTHER system team for the contribution to the scientific community...

Scientists identify new model Of NK cell development

...sophisticated and highly focused killer cells, are released into the bloodstream and migrate to the thymus where they learn their role. In contrast, B cells, which make antibodies, remain and mature in the bone marrow. Until now, scientists thought NK cells did the same. But Caligiuri, working with Aharon Fr...

White blood cell waste disposal system plays critical regulatory role

...e constantly being produced in the bone marrow and released into the blood stream where they migrate out of the blood and roam the body in search of potentially harmful foreign substances. Neutrophils have a short lifespan and often die via a programmed cell death pathway called apoptosis within a matter of h...

Agilent Technologies releases automated literature search tool for biology researchers

Agilent Technologies Inc. (NYSE: A) today released an automated literature search tool for the multidisciplinary study of biological systems. The tool is available as a free plug-in to Cytoscape 2.1, an open-source bioinformatics platform that enables researchers to form a visual map of complex biolo...

South America's vast pantanal wetland may become next everglades, UNU experts warn

...ks, most of it organic matter in soil which can be released when the soil is disturbed, for example through wetlands drainage and destruction. Already, changes in land use and land cover account for about 1.6 gigatonnes (17%) of annual human-caused carbon emissions, the analysis says. And by 2100, "the terre...

World's largest rainforest drying experiment completes first phase

... savanna scrub. The amount of carbon that could be released to the atmosphere by this savannization process is significant --equivalent to several years of worldwide carbon emissions -- and could accelerate climate change processes already in place. But beyond these global effects, drought and fire, which is ...

Expression Project for Oncology (expO) completes first phase of standardized gene expression analyses

...s (IGC) Expression Project for Oncology (expO) has released clinically annotated gene expression profiles for ...ty of RNA by quickly freezing the portion of tumor released for analysis. Historically, collection efforts typically achieve a successful preservation rate of 7...

NYU study reveals how brain's immune system fights viral encephalitis

... I interferons--proteins made by the body that are released in response to stimuli, notably infection--work in...lock the virus from forming particles which can be released and infect other neurons. This is critical, since the immune system does not kill infected precious ...

Norovirus, AIDS vaccine and Hepatitis Virus

... animal cells when they are invaded by viruses, is released into the bloodstream or intercellular fluid to induce healthy cells to manufacture an enzyme that counters the infection. One class of interferons (alpha) is used to treat chronic infection with HBV and HCV. There is a vaccine available to prevent th...

Polymers with copper show promise for implanted sensors

... the amount of nitric oxide that can be stored and released from the thin coating on the sensor surface. The new approach is to make polymers that generate nitric oxide from compounds called nitrosothiols found in the bloodstream. The key to doing this, the researchers found, is copper. "It turns out that c...

Discovery Promises Simpler Therapy for Sickle Cell Disease

...re deficient for the form of nitric oxide normally released by the cells. The blood cells therefore fail to open blood vessels normally. Red cells taken from patients with mild sickle cell disease dilate blood vessels under low oxygen conditions, but to a lesser extent than normal red cells. In contrast, red...

Stem cells from brain transformed to produce insulin at Stanford

... sugar went up in these mice, the cells once again released insulin. After four weeks the cells had survived, continued to produce insulin and had not changed into other cell types or formed tumors. Kim noted that the amount of insulin produced wasn't enough to effectively treat diabetes. Still, the work is ...

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