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Tag: "determined" at biology news

Controversial drug shown to act on brain protein to cut alcohol use

...aine doesreduce alcohol consumption, and they have determined that it does so byincreasing the level of a brain protein known as glial cellline-derived neurotrophic factor, or GDNF. In a separate study, theydemonstrated that GDNF by itself decreases alcohol consumption.The research is being published in the Jan...

Current human embryonic stem cell lines contaminated UCSD/Salk team finds

... human embryonic stem celllines, the investigators determined that the Neu5Gc is incorporated bythe stem cells w...ellows,and Sandra Diaz, a research associate. They determined that Neu5Gc getsinto human cells by being engulfed in fluid droplets and then moved tothe cytoplasm ...

UCLA Study Shows One-Third of Drug Ads in Medical Journals Do Not Contain References Supporting Medical Claims

...nces are available to physicians. Researchers also determined the funding sources of research cited in the ads. The study is published in the Feb. 15 issue of the Canadian Medical Association Journal. "Previous studies have shown that physicians' drug prescribing is influenced by pharmaceutical ads. We wanted...

U of M researcher examines newly emerging deadly disease

...nfectious Diseases. This new disease has also been determined in seven additional cases nationwide. Of the 12 known cases, only two patients have survived. Purpura fulminans is an acute illness commonly associated with meningococcemia or invasive streptococcal disease, and it is typically characterized by the ...

Study finds more than one-third of human genome regulated by RNA

...ultimatelyproduced. In this study, the researchers determined which portion ofthe microRNA is most important for this process, and identifiedadditional determinants in the messenger RNA that are likely tocontribute to recognition by microRNAs.These findings contribute to the recent interest in potentialtherapeu...

NYU researchers simulate molecular biological clock

...ultimatelyproduced. In this study, the researchers determined which portion ofthe microRNA is most important for this process, and identifiedadditional determinants in the messenger RNA that are likely tocontribute to recognition by microRNAs.These findings contribute to the recent interest in potentialtherapeu...

Spider Venom Could Yield Eco-Friendly Insecticides

...e (NMR) spectroscopy, King and his colleagues have determined the three-dimensional structures of specific neurotoxins from the funnel-web spider -- toxins that either paralyze insects or send their nervous systems into overdrive. King's NSF-funded research has provided the first detailed descriptions of the re...

Poplar trees redirect resources in response to simulated attack

...zone," Ferrieri said. The scientists have not yet determined if more sugar gets stored in the plants' roots, a key component of the theory. "Because the radiotracer has such a short half-life (20.4 minutes), we can see that more is going to the roots, but not the chemical form it takes there," Ferrieri said. "...

First 'atlas' of key brain genes could speed research on cancer, neurological diseases

...n factors: they turned up1,445 of them. Next, they determined that more than 1,000 of these TF’swere expressed in the brains of developing mice.Using genetic probes to investigate thin sections of mouse brains, thescientists found that only 349 of the TF genes were expressed inspecific regions, and not througho...

Critical role in programmed cell death identified

...en unclear, until now. Conradt and her colleagues determined that mitochondrial fragmentation is required for cells to die and that the process that commits cells to the point of no return happens quickly. Conradt said it's the clearest confirmation yet that mitochondrial fragmentation is critical in killing c...

Open microfluidic and nanofluidic systems

...e 1. In such a situation, the contact angle is not determined by the classical Young equation but can vary over a wide range of values. A surprising prediction of the new theory is that the experimentally observed polymorphism of the wetting liquid depends only on two parameters: (i) the channel geometry, i.e....

Ants Genetic Engineering Leads To Species Interdependency

...e workers. The role, or caste, of an individual is determined forlife at a certain stage in her development.In virtually all ant species, it is the environment in which a femaleis raised, rather than a genetic predisposition, that determines whichcaste she will adopt.However, in two harvester ant populations in...

Studies reveal methods viruses use to sidestep immune system

...with the mutation, Dr. Gale said. He and his group determined that the protein made by the gene is essential to turning on signals that tell the cell to mount an immune response. Cells with the mutated RIG-I protein were unable to initiate immune signals, abolishing the host cells' defenses to HCV. When HCV in...

The Shapes Of Life: NIGMS Project Yields More Than 1,000 Protein Structures

...sional shapes of a wide range of proteins, has now determined more than 1,000 different structures. These struct...many important proteins.?/p> Some of the newly determined structures are of proteins found in plants, mice, yeast, and bacteria, including the pathogenic type...

UCSD discovery may help extend life of natural pesticide

...Research and Training Centre in Berkshire England, determined the chemical structure of the normal glycolipid receptor that binds Bt toxin. Elements of this structure are found in both insects and nematodes, but are not found in vertebrates at all, which may be one reason these proteins are safe to vertebrates...

RNA project to create language for scientists worldwide

...ed. For instance, while genomicists had previously determined that humans and chimpanzees share 99 percent of the same protein genes, it has now been discovered in the past two years that so do mice. "The hardware (proteins) for mice and humans is practically the same–but clearly mice and humans are different....

UCSD team discovers specialized, rare heart stem cells in newborns

... of the newborn heart called the atrium. They also determined that the cells could be expanded into millions of progenitor cells by growing them on a layer of neighboring heart cells called fibroblasts. Published in the February 10, 2005 issue of the journal Nature, the research identified the isl1+ progenitor...

VCU Researchers Identify Networks Of Genes Responding To Alcohol In The Brain

...6 and D2 mice show with alcohol. Researchers also determined whether genes with changes in expression had a fun...al relationship with each other. For example, they determined that many genes regulated by alcohol participated in certain biological pathways, such as the one le...

Protein offers way to stop microscopic parasites in their tracks

...ctures known as cilia or flagella. Researchers had determined that Toxoplasma has a rotating protein-based conveyor belt on its underside that enables it to move. To push forward, any rotating object -- be it a belt or a wheel -- needs traction, or the ability to grip onto something and push against that grip....

Effective Cancer Treatments Follow The Clock

...nce that the activity of the Clock and Bmal1 genes determined the cells' sensitivity to CY. “Thus, this paper gives us specific mechanistic insight into the role of circadian rhythms in sensitivity to such drugs,?said Takahashi. “This is not some vague metabolic difference between day and night. This is a tang...

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