Evolution News and Research

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Food choices evolve through information overload

Ever been so overwhelmed by a huge restaurant menu that you end up choosing an old favourite instead of trying something new?

24 Mar 2009

Rewrite of the recipe for life - new type of DNA

In a dramatic rewrite of the recipe for life, scientists from Florida today described the design of a new type of DNA with 12 chemical letters instead of the usual four.

23 Mar 2009

DNA duplication - mechanism for 'survival of the fittest'

Some 65 million years ago, the earth's most recent 'mass extinction' took place.

23 Mar 2009

Coatings that kill superbugs

Researchers at the University of Bath are to be part of a 3 million Euros Europe-wide research collaboration to pioneer research into safer, more effective anti-bacterial plastics and coatings that can be used in items such as food packaging, medical devices to wound dressings, and nappies.

20 Mar 2009

MicroRNA undermines tumor suppression

Scientists at the Whitehead Institute for Biomedical Research and the National University of Singapore have discovered the first microRNA (miRNA) capable of directly tamping down the activity of the well known tumor-suppressor gene, p53, While p53 functions to prevent tumor formation, the p53 gene is thought to malfunction in more than 50% of cancerous tumors.

17 Mar 2009

Catching the common cold virus: researchers coming down with the rhinovirus genome

A new study by Brigham Young University researchers on the virus behind nearly half of all cold infections explains how and where evolution occurs in the rhinovirus genome and what this means for possible vaccines.

16 Mar 2009

Genetic mechanism in mole rats can be targeted in cancer research

"When we understand how the subterranean mole rat developed these mechanisms for survival, we may be able to understand why they are so destructive in humans," Prof. Aaron Avivi of the University of Haifa said.

15 Mar 2009

One virus particle is enough to cause infectious disease

Can exposure to a single virus particle lead to infection or disease? Until now, solid proof has been lacking. Experimental research with insect larvae at Wageningen University and Simon Fraser University in Canada has shown that one virus particle is theoretically enough to cause infection and subsequent disease.

15 Mar 2009

Global elimination of rabies appears to be possible

Someone in the developing world - particularly in rural Africa - dies from a rabid dog bite every 10 minutes.

12 Mar 2009

A new approach for detecting functional genomic regions

A team that includes researchers from the National Institutes of Health (NIH) has found a new way of detecting functional regions in the human genome. The novel approach involves looking at the three-dimensional shape of the genome's DNA and not just reading the sequence of the four-letter alphabet of its DNA bases.

12 Mar 2009

Bioinformatics sheds light on evolutionary origin of Rickettsia virulence genes

Scientists from the Virginia Bioinformatics Institute (VBI) at Virginia Tech, the University of Maryland School of Medicine, and the University of Louisville have revealed that genes for a specific type of molecular secretion system in Rickettsia, a structure that is linked in many cases to virulence, have been conserved over many years of evolution.

11 Mar 2009

Salt could be 'nature's antidepressant' according to new research

Most people consume far too much salt, and a University of Iowa researcher has discovered one potential reason we crave it: it might put us in a better mood.

11 Mar 2009

Protein structures reveal "big bang" of innovation in evolution

A new study of proteins, the molecular machines that drive all life, also sheds light on the history of living organisms.

11 Mar 2009

Molecule tracking reveals mechanism of chromosome separation in dividing cells

University of Washington (UW) researchers are helping to write the operating manual for the nano-scale machine that separates chromosomes before cell division.

8 Mar 2009

Long-defunct gene comes back to life in humans

Researchers have discovered that a long-defunct gene was resurrected during the course of human evolution.

8 Mar 2009

Bigger genomes more useful

Biologists analyzing DNA in search of the molecular underpinnings of life have consistently favored species with small genomes, which are cheaper to sequence and lack the repetitive "junk" that clutters bigger genomes.

3 Mar 2009

Trial looks at telmisartan in treating non-alcoholic steatohepatitis

Non-alcoholic fatty liver disease (NAFLD) and non-alcoholic steatohepatitis (NASH) are well-recognized causes of progressive liver disease leading to cirrhosis and hepatocellular carcinoma.

3 Mar 2009

Influenza A's resistance to drug Tamiflu increasing

Influenza A viruses (H1N1 subtype) that are resistant to the drug oseltamivir circulated widely in the U.S. during the 2007-2008 influenza season, with an even higher prevalence of drug resistance during the current 2008-2009 influenza season, according to a study to be published in the March 11 issue of JAMA, the Journal of the American Medical Association.

2 Mar 2009

Why do teeth form in a single row?

A system of opposing genetic forces determines why mammals develop a single row of teeth, while sharks sport several, according to a study published in the journal Science.

26 Feb 2009

New theory of how animals smell

In the real world, odors don't happen one puff at a time. Animals move through, and subsequently distort, plumes of odor molecules that constantly drift, changing direction as the wind disperses them.

25 Feb 2009