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Tag: "avoid" at biology news

MIT bioengineer advances survival, promise of adult stem cells

...val of cells under many clinical conditions. To avoid that deadly response, Griffith and her team sought a way to manipulate the environment surrounding the cells to make conditions more favorable for survival. They zeroed in on a growth factor known as EGF, which plays a role in growth and differentiat...

New study is first to link romantic relationships to genes

...rather than similar ones. This preference may help avoid inbreeding between partners, as well as strengthen the immune systems of their offspring through exposure to a wider variety of pathogens. The study investigated whether MHC similarity among romantically involved couples predicted aspects of thei...

Widely used hepatitis B drug spurs HIV drug resistance

...IV has not yet weakened their immune system and to avoid the debilitating side effects of anti-HIV medications. In the Hopkins study, researchers found in both laboratory and clinical tests that within six months of entecavir therapy, a so-called M184V mutation of HIV develops. Thio says viruses with...

Men with prostate cancer avoid radiation due to misconceptions

...ly influence a prostate cancer patient's choice to avoid external beam radiation therapy, even though studies have proven the treatment to be as safe and effective as other treatments for the disease, including surgery, according to a study presented November 5, 2006, at the American Society for Therapeuti...

New way of tracking muscle damage from radiation

...n be able to design better radiation treatments to avoid potential problems or treat the injury at an earlier stage, Krasin said. ...

NHGRI aims to make DNA sequencing faster, more cost effective

...mage to DNA probes, which the group will strive to avoid by using nano-contact printing. With the nano-sized features, a DNA nanoarray can also improve throughput by offering the ability to accommodate billions of DNA molecules in a small area. Hybridization will be detected by atomic force microscopy. ...

Researchers identify neurons that assign value during learning

...xperimentally light-activated, the larvae learn to avoid this odor in a later test, despite the fact that no negative stimulus was presented to the larvae along with the odor. Conversely, if an odor is presented while a different group of neurons--releasing octopamine and/or tyramine--are experimentally li...

Firefighters face increased risk for certain cancers

...ditional protective equipment to help firefighters avoid inhalation and skin exposures to known and suspect...dy to remove soot and other residues from fires to avoid skin exposure." ...

'Erectile dysfunction' drugs heighten natural anti-cancer activity

...kins study homes in on a tactic used by cancers to avoid detection by the immune system by turning elements of that system to its own advantage, says Ivan Borrello, M.D., assistant professor at the Johns Hopkins Kimmel Cancer Center. Borrello and his colleagues found that tumors exploit nitric oxide-pr...

Teenager moves video icons just by imagination

...an epileptic seizure, with hopes of removing it to avoid future seizures. To do this, the boy and his doctors, Dr Mathew Smyth and Dr John Zempel, had to wait for a seizure. Usin' the noggin With approval of the patient and his parents and the Washington University School of Medicine Institutional Re...

Seals protect brain, conserve oxygen by turning off shivering response on icy dives

... dive duration, seals maintain aerobic metabolism, avoid lactate buildup that occurs in the face of insufficient oxygen and require little time to recover, Folkow explained. Seals often spend 80-90% of their time at sea underwater, he said. Seals in the wild occasionally dive for so long that they use n...

Stem cells found in adult hair follicles may provide alternative to embryonic stem cells

...hich patients can be their own donors, which would avoid ethical issues and reduce the possibility of tissue incompatibility," says Dr. Sieber-Blum. The Medical College team in collaboration with Prof. Martin Schwab, director of the Brain Research Institute of the University of Zürich, recently injected ...

Replacing insulin is top-ranked breakthrough foreseen for health in developing world

...atible blood substitutes that can be sterilized to avoid costly screening measures, for example. "Whether developing countries choose to build capacity in regenerative medicine themselves or whether they wait to adopt therapies developed first elsewhere may depend both on their economic position and on t...

Two central mysteries in genome inheritance solved at UCSD

...ote cancerous transformation," said Desai. Cells avoid such a fate by detecting errors in attachment to the spindle, breaking down these defective attachments and starting over. But until now, scientists did not understand how cells detected such an error. Sharsti Sandall, a graduate student in the B...

Researchers barcode DNA of Venice museum's vast fungi collection

...des governments with pivotal information needed to avoid repeated introductions of pathogens." Garbelotto is working with Italian mycologist Giovanni Robich and Luca Mizzan, curator of Marine Biology at the Venice Museum of Natural History, to sort through the samples in the museum, which are being sent...

Psst! Coffee drinkers: Fruit flies have something to tell you about caffeine

... choice between sweet and bitter substances, flies avoid caffeine and other bitter-tasting chemicals. But flies missing this particular taste-receptor protein, called Gr66a, consume caffeine because their taste-receptor cells don't fire in response to it." The discovery, which is the first ever example of...

New dwarf buffalo discovered by chance in the Philippines

...edators (the animal no longer needs to be large to avoid being eaten) and/or limited food (smaller animals require less food). The research could provide insights into debates on the evolution of small-bodied species elsewhere in the tropics such as the proposed new hominid, Homo floresiensis, found on ...

Bitter taste identifies poisons in foods

...ls of thyroid hormones. The ability to detect and avoid naturally-occurring glucosinolates would confer a selective advantage to the over 1 billion people who presently have low iodine status and are at risk for thyroid insufficiency. In the study, 35 healthy adults were genotyped for the hTAS2R38 bitt...

To elude bats, a moth keeps its hearing in tune

...f bats, do some bats in turn modify their calls to avoid detection by moths" The authors point out that, in view of the vast diversity of bat calls, this is to be expected. ...

Proteins anchor memories in our brain

...elf" proteins, or antigens, normally are purged to avoid autoimmune attacks in the body later on. The new research showed that if just one of the body's antigens is not recognized as "self," this single failure can lead to a severe autoimmune disease in the retina. "The thymus is like a filter," said Ma...

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