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Tag: "critically" at biology news

3-D ultrasound scanner provides in-depth view of the brain

... particularly useful for the bedside evaluation of critically ill patients when computed tomography (CT) and magnetic resonance imaging (MRI) equipment is unavailable, the researchers said. They report the development in a forthcoming issue of the journal Ultrasound in Medicine & Biology, which is currently...

Study offers clues to 'Broken Heart Syndrome'

... women. One thing is certain: Patients are usually critically ill during the first 48 hours. "These patients can be difficult to manage for emergency physicians and cardiologists alike," said cardiology fellow Richard Regnante, M.D. "They may be in cardiac arrest, cardiogenic shock, or severe heart failure. ...

HIV survival improves if patients stay in care

...ort. "We know that adherence to medications is critically important," said Giordano. "Patients who have trouble taking their medicines regularly will do less well. But what about those people who aren't even seeing a doctor regularly" Before this study, we had only a vague understanding of the magnitude of ...

Study suggests some drug resistance to influenza B medications

...aminidase inhibitor–resistant influenza viruses is critically important,?the authors write. “Further evaluation of the biological properties of neuraminidase inhibitor–resistant influenza viruses is needed to fully assess their pathogenicity in humans.? (JAMA. 2007;297:1435-1442. Available pre-embargo to the m...

Researchers learn what sparks plant growth

...urvival. Brassinosteroid biosynthesis has become a critically important area of plant biology research with significant implications for commercial agriculture. "It’s been a matter of some debate for a very long time if one of these tissue layers controls plant growth or if all three layers have to work toge...

The penalty of having a sister -- why sibling sex matters for male saiga antelopes

...r 95% in recent years, making them one of the most critically endangered species on earth. Future research will investigate what role sibling sex plays for lifetime reproductive success. The monitoring protocol of saiga antelopes is currently being improved to include non-invasive methods for monitoring to d...

Better assessment of transfusions could save blood

...vidence suggesting that the anemia observed in the critically ill is an underproduction anemia, consistent with ...sfusion to treat anemia in hemodynamically stable, critically ill patients without evidence of acute bleeding....

Enhancing activity of marijuana-like chemicals in brain helps treat

...aining unwanted movement. "These two circuits are critically involved in a push-pull to select the appropriate movement to perform and to inhibit the other," said Kreitzer. Dopamine appears to modulate these two circuits in opposite ways. When dopamine is depleted, it is thought that the pathway responsi...

New sucker-footed bat discovered in Madagascar

...e eastern coast of Africa, remains one of the most critically threatened areas in the world, in terms of biodiversity. Madagascar has a higher level of endemism (with plants and animals found nowhere else) than any other landmass in the world of comparable size. "Still today, you can go out and discover things...

Are we killing the world's oceans?

...es, where thorny issues of national concern can be critically examined and policy approaches explored. Experts from Canada, Chile, Germany, Scotland and the US will speak on such issues as climate change, ocean acidification and coral reefs, the increase in ocean dead zones, scientific and social dynamics du...

Saving endangered whales at no cost

...tantially reduce fishing-gear entanglements of the critically endangered North Atlantic right whale. The findings appear in the January 9th issue of the journal Current Biology, published by Cell Press, and are reported by Ransom Myers of Dalhousie University in Nova Scotia, along with colleagues there and at t...

Scripps research study reveals structural dynamics of single prion molecules

...ss. The intermediate stages of the process are critically important, Deniz noted: "No single native unfolded protein is capable of initiating the amyloid cascade because of this constant shape-shifting. To start the amyloid conversion process, it has to first convert to an intermediate species, consisting o...

Stem cell transplants explored at Stanford as a possible treatment for hearing loss

...ocused on using these stem cells to regenerate the critically needed hair cells in the inner ear. Later in 2003, his group reached another significant milestone: the team demonstrated that it is possible to coax embryonic stem cells in a test tube to differentiate into hair cells - and then also to have the...

Living with water scarcity -- world must act now

...itative assessment of water and food ever written, critically examining policies and practices of water use and development in the agricultural sector over the last 50 years. Spearheaded by International Water Management Institute (IWMI), one of 15 CGIAR agricultural research centres striving to increase fo...

Recently discovered species gain protection

... Fenwick, the ABC president. The reserve is also critically important for globally threatened frog species, whose last remaining habitat is diminishing rapidly within the Central Cordillera. Seven Vulnerable and four Endangered frog species occur within the new reserve, as do five additional species so new to...

Short chromosomes put cancer cells in forced rest

..., called telomeres. "Normally, when telomeres get critically short, the cell commits suicide as a means of protecting the body," says Carol Greider, Ph.D., the Daniel Nathans chair of molecular biology and genetics at Johns Hopkins. Her study, appearing online this month at Cancer Cell, uncovers an alternate r...

Microbes compete with animals for food by making it stink

...hopes the research will make ecologists think more critically about the broad role of microbes in the ecosystem. Microbes are often omitted or relegated to a minor role in food web diagrams, but they should be depicted as direct competitors with larger animals, he said. ...

End-of-life care can be improved

...tting. "Improving the quality of care received by critically ill and dying patients in the ICU remains an ongoi... the potential for improving the care delivered to critically ill patients at the end of life as well as the care provided to their families. The supplement re...

New study aims to stop sepsis in its tracks

...re medicine. "By improving the treatment of those critically ill with sepsis, the consortium's work will have enormous implications for the thousands of patients who suffer from this infection," said NIH Director Elias A. Zerhouni, M.D. Every year, sepsis affects more than 700,000 Americans. About 30 percent...

Nobel Laureate finds 'elegant' explanation for DNA transcribing enzyme's high fidelity

... is a result of the alignment with the NTP that is critically dependent upon the base, sugar, phosphate and location when the trigger loop swings into position,?Kornberg said. “If it is misaligned even slightly, that set of contacts cannot occur.? As a consequence of that alignment, to angstrom (a unit of leng...

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