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Locked RNA Editing Yields Odd Fly Behavior

By Guest PostApril 26, 2012Scienceabiotic factor, als, arthur sugden, asli sahin, brown university, cell, charles lawrence, dadar, enzyme adar, epilepsy, factor, fruit fly, function, genetic, jacquelyn dorsky, james jepson, lauren alpert, locking down, lou gehrigs disease, nucleus, organism, phenomenon, protein, rna, robert reenan, suicidal depression, temperature, wallflowers, yiannis savva

At the level of proteins, organisms can adapt by editing their RNA — and an editor can even edit itself. Brown University scientists working with fruit flies found that “locking down” the self-editing process at two extremes created some strange behaviors. They also found that the process is significantly affected by temperature.

PROVIDENCE, R.I. [Brown University] — Because a function of RNA is to be translated as the genetic instructions for the protein-making machinery of cells, RNA editing is the body’s way of fine-tuning the proteins it produces, allowing us to adapt. The enzyme ADAR, which does this editing job in the nervous system of creatures ranging from mice to men, even edits itself. In a new study that examined the self-editing process and locked it down at two extremes in fruit flies, Brown University scientists found some surprising insights into how this “fine-tuning of the fine-tuner” happens, including bizarre behavioral effects that come about when the self-editor can’t edit. (more…)

Political Leaders Play Key Role in How Worried Americans Are By Climate Change

By Guest PostFebruary 12, 2012Environment, Politicsacademy awards, afghanistan, Al Gore, american clean energy, americans, an inconvenient truth, anti environmental voting, climate change, climate change threat, climate threat, congress, democrats, environmental magazines, extreme weather, factor, gdp, gross domestic product, Iraq, j craig jenkins, jason carmichael, John McCain, Media, movie, new york times, political battle, political leader, Politics, price of oil, republican senators, republicans, robert brulle, Science, threat, threat index, unemployment rate, war deaths

COLUMBUS, Ohio – More than extreme weather events and the work of scientists, it is national political leaders who influence how much Americans worry about the threat of climate change, new research finds.

In a study of public opinion from 2002 to 2010, researchers found that public belief that climate change was a threat peaked in 2006-2007 when Democrats and Republicans in Congress showed the most agreement on the issue. (more…)

Global Extinction: Gradual Doom as Bad as Abrupt

By Guest PostFebruary 8, 2012Environment, Sciencebrooks ellwood, canadian arctic, carbon dioxide, charles henderson, coal deposit, dead zone, earth, ellesmere island, extinction, factor, fossil, geologic history, geology, global extinction, greenhouse, greenhouse gas, h richard lane, harry rowe, indian ocean, katherine freeman, marine life, mass extinction, national science foundation, ocean, permian period, permian triassic boundary, sedimentary rock, siberian traps, siberian volcanic activity, south china, steven bates, tethys, the great dying, thomas algeo, timothy lyons, united states, university of calgary, university of cincinnati, volcanic deposit, volcanic rock, volcanism in siberia, warming, west blind fiord

*In “The Great Dying” 250 million years ago, the end came slowly*

The deadliest mass extinction of all took a long time to kill 90 percent of Earth’s marine life–and it killed in stages–according to a newly published report.

It shows that mass extinctions need not be sudden events.

Thomas Algeo, a geologist at the University of Cincinnati, and 13 colleagues have produced a high-resolution look at the geology of a Permian-Triassic boundary section on Ellesmere Island in the Canadian Arctic. (more…)

MU Researchers Find Unique Protein Organization in Arteries Associated with Cardiovascular Disease

By Guest PostJanuary 13, 2012Health, Science3 d microscopic imaging technology, amount of protein, artery, artery functions, blood vessels, cardiovascular disease, cause of death, circulatory complications, diabetes, disorders, elastin, elastin production, factor, gerald meininger, high blood pressure, human arteries, michael hill, minute structural elements, molecular biologists, stiffening, stiffening process, tissue replacement proces, united states, university of missouri

*Knowledge could assist in tissue replacements, treatments for high blood pressure and diabetes*

COLUMBIA, Mo. – Human arteries – some smaller than a strand of hair – stiffen as a person ages. This stiffening is a factor in cardiovascular disease, the leading cause of death in the United States, because it contributes to the circulatory complications in disorders such as high blood pressure and diabetes. University of Missouri researchers have now used advanced 3-D microscopic imaging technology to identify and monitor the proteins involved in this stiffening process. These findings could eventually help researchers and physicians understand and treat complications associated with cardiovascular disease. (more…)

Political Narratives On Race, Southern Identity Influence National Elections

By Guest PostMarch 8, 2011Politicsafrican american, american south, americans, christina moss, democratic party, democrats, factor, god fearing, Obama, political power, President Obama, racial prejudice, regionalism, republicans, southern states, white voters, zell miller

New research from North Carolina State University shows how attempts to define the South by Republicans and Democrats may have set the stage for President Obama’s victories in Southern states – and shaped the way Americans view themselves.

“Every presidential election is a chance to discuss what it means to be American,” says Dr. Christina Moss, teaching assistant professor of communication at NC State and author of a paper on the research. “The South garnered a great deal of attention in the 2004 election season, and the narratives from that election may provide clues to Obama’s success in 2008.” (more…)

Tag Archives: factor

Locked RNA Editing Yields Odd Fly Behavior

Political Leaders Play Key Role in How Worried Americans Are By Climate Change

Global Extinction: Gradual Doom as Bad as Abrupt

MU Researchers Find Unique Protein Organization in Arteries Associated with Cardiovascular Disease

Political Narratives On Race, Southern Identity Influence National Elections