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Tag: "under" at biology news

Investigating the measles virus as a tool to kill multiple myeloma

... study this phenomenon until the late 1990s, when, under the direction of Stephen Russell, M.D., Ph.D., Mayo Clinic Cancer Center’s Molecular Medicine Program began investigating it. The current study and other related projects resulted. “Mayo’s multidisciplinary team and institutional support for cutt...

Stanford-led study closes in on genes that may predispose some people to severe depression

...chromosome by a consortium of researchers working under Douglas Levinson, MD, professor of psychiatry and...ext phase of the consortium's research is already under way. This phase is an even more detailed look at more than 2,000 individuals to identify specific ...

Noise echoes in cell communications

..., who points to the constant movement of particles under a microscope to illustrate this phenomena. Unlike ... explanation of the properties of noise in hearing under different conditions. To develop the theory, Hong used a variation on the wavelet technique, which h...

Sandia researchers take new approach to studying how cells respond to pathogens

...ogical reagents and computational models developed under this project have applicability beyond infectious disease research. These technologies can also be used for studying cellular signaling involved in diseases such as cancer or by pharmaceutical companies for biomarker discovery. ...

Gut research yields new anti-cancer approach

...in levels was abandoned approximately 25 years ago under the assumption that such drugs would be toxic, destroying microtubules in healthy cells as well as cancer cells," Schaefer said. "Our early studies, however, suggest that general toxicity does not rule out this approach as once feared. With new drug ...

Using nanomagnets to enhance medical imaging

...e measured properties to the observed MRI response under non-clinical conditions using imagers at The Children's Hospital in Denver. The information gained is fed back into recipes for making even better nanomagnets. The work described in the new paper was supported in part by the National Science Foundati...

Row over study puts Korea's scientific community under scrutiny again

...paper that is putting Korea's scientific community under scrutiny once again. The dispute has pitted a you...ed in the American journal Fertility and Sterility under a different title and with different authors in December 2005. What is indisputable is that Dr Ki...

Male-killing bacteria makes female butterflies more promiscuous

...s is partly because the decision to mate is mainly under female control and because males have a high mating capacity." This study was carried out on Hypolimnas bolina butterflies in Pacific Island and South-East Asian populations. The islands provide an ideal location because every island is differentl...

Study finds antibiotic resistance in poultry even when antibiotics were not used

...sed on antibiotic-free farms and even those raised under pristine laboratory conditions have high levels of...eam sampled droppings from more than 140,000 birds under four different conditions: 1.) commercial flocks that had been given antibiotics; 2.) commercial flo...

Scientists find genes involved in the battle between Hessian flies and wheat

...at anti-insect poisons. "Hessian fly larvae are under stress when they encounter resistant wheat plants,...an't establish a feeding site. The larvae also are under stress from toxic molecules, including poisonous oxygen compounds." Researchers know little about...

Mutation improves memory, may lead to memory-enhancing pill

...ion have a superior ability to remember new things under certain training conditions. “Those results led...ther, these data strongly support the notion that, under physiological conditions, a decrease in eIF2a phosphorylation constitutes a critical step for the ac...

Researchers learn what sparks plant growth

...are right to seize the day for growth or hold back under less opportune conditions. More study is needed to determine all of the cues that spark the intimate dialogue between the cells of the epidermis and the inner cells of the shoot. "Our study says that the major target tissue in the shoot for steroi...

Need oxygen? Cells know how to spend and save

...s is one way that cells maintain energy production under less than ideal conditions." A report on the work ...suspected that COX 4-2 might be the active protein under stressful, low-oxygen conditions, which the researchers refer to as hypoxia. To test the idea, t...

Arsenic in chicken feed may pose health risks to humans, C&EN reports

...original form, roxarsone is relatively benign. But under certain anaerobic conditions, within live chickens and on farm land, the compound is converted into more toxic forms of inorganic arsenic. Arsenic has been linked to bladder, lung, skin, kidney and colon cancer, while low-level exposures can lead to ...

New compound prevents alcoholic behavior, relapse in animals by blocking stress response

...tressful situations without affecting its activity under ordinary circumstances. They studied rats that had... and eliminated the rats?susceptibility to relapse under stress. Yet the compound did not affect their native curiosity or lower levels of drinking alcohol i...

LIAI completes world's most comprehensive analysis on influenza virus data

...y's immune system responds to infectious agents -- under a $25 million contract awarded by the NIAID in 2004. The database places particular emphasis on emerging infectious diseases, such as West Nile virus, along with those diseases considered potential bioterrorist threats. The database's influenza ...

Discovery could lead to better control of hemorrhagic fever viruses

...voc, damaging multiple organs and causing bleeding under the skin, in internal organs, and from orifices like the mouth, eyes or ears. Because of TfR1's essential function in transporting iron into cells, it is found on the surface of virtually every cell of the body. It is abundant on endothelial cell...

Enhancing activity of marijuana-like chemicals in brain helps treat

...t cell types that are virtually indistinguishable under the microscope. To uncover the individual contrib...with a fluorescent protein that glows vivid green under a microscope. Having an unequivocal way to identify the cells allowed them to tease apart the funct...

Imaging techniques permit scientists to follow a day -- or four -- in the life of a cell

...g on inside, and another for maintaining the cells under a microscope for long-term observation. The first...opy. This enables researchers to monitor the cells under a microscope for long time periods (in excess of four days), during which the cells may divide multi...

Hotspots of mercury contamination identified in eastern North America

...ctions in mercury emissions beyond those currently under way will be needed to eliminate the element as a health risk to humans or to populations of loons. ...

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