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Researchers unlock mystery of a third olfactory system

Researchers at the University of Maryland School of Medicine have found a "nose within the nose," a unique olfactory system within the noses of mice that is able to "smell" hormones involved in regulating water and salt balance in the body.

30 Aug 2007

Researchers discover nature uses a recurring molecular strategy to defend against infection

With infections increasingly resistant to even the most modern antibiotics, researchers at the Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center (LA BioMed) report in the September issue of Nature Reviews Microbiology on new clues they have uncovered in immune system molecules that defend against infection.

30 Aug 2007

Researchers explain evolution of lifespan

Stanford scientists show in a forthcoming paper that traditional mating patterns make men the key to explaining away the "wall of death," an enduring puzzle in the study of human longevity.

29 Aug 2007

Evolution may have sped up

Is heading straight for a goal the quickest way there? If the name of the game is evolution, suggests new research at the Weizmann Institute of Science, the pace might speed up if the goals themselves change continuously.

29 Aug 2007

World's oldest bacteria

All cells decompose with time. But some cells are better than others to postpone the decomposing and thus delay ageing and eventually death. And there are even organisms that are capable of regenerating and thereby repair damaged cells.

28 Aug 2007

Computer simulation shows how evolution may have speeded up

28 Aug 2007

Bacterial toxins and perforins have a common ancestor

Human immune proteins crucial for fighting cancer, viruses and bacterial infections belong to an ancient and lethal toxin family previously only found in bacteria, Australian researchers have found.

24 Aug 2007

All eukaryotic kinases share 1 common set of substrates

Kinase mediated phosphorylation is generally recognised as the major regulator of virtually all metabolic activities in eukaryotic cells including proliferation, gene expression, motility, vesicular transport and programmed cell death.

24 Aug 2007

Global public health security in the 21st century

More than at any previous time in history, global public health security depends on international cooperation and the willingness of all countries to act effectively in tackling new and emerging threats.

23 Aug 2007

Migration of antibiotic resistance from animal feeding operations into groundwater

The routine use of antibiotics in swine production can have unintended consequences, with antibiotic resistance genes sometimes leaking from waste lagoons into groundwater.

22 Aug 2007

Scientists describe a new way of creating novel enzymes

The intricate interplay of proteins and other chemicals that underlies most biological activities requires the participation of enzymes, specialized molecules that accelerate chemical reactions between molecules.

17 Aug 2007

Gene use sets humans and chimps apart

The striking differences between humans and chimps aren't so much in the genes we have, which are 99 percent the same, but in the way those genes are used, according to new research from a Duke University team.

13 Aug 2007

Gene regulation drives evolution

It is not just what's in your genes, it's how you turn them on that accounts for the difference between species , at least in yeast , according to a report by Yale researchers in this week's issue of Science.

11 Aug 2007

Study looks at wealth of future retirees

The average value of Americans 401(k) plans will be substantially higher in real terms by the year 2040 even if stock market returns fall short of their historical values, according to new research by a team of economists from MIT, Harvard and Dartmouth.

7 Aug 2007

Brain areas that control attention thinnest in children with ADHD

Brain areas that control attention were thinnest in children with attention deficit hyperactivity disorder (ADHD) who carried a particular version of a gene in a study by the National Institutes of Health's (NIH) National Institute of Mental Health (NIMH).

7 Aug 2007

Can people mentally impose arbitrary spatial category boundaries?

When explorers like Magellan and Columbus sailed from Europe to the New World 500 years ago, they amazingly managed to navigate the open sea without terrestrial landmarks, natural boundaries or the navigational technology we have today.

6 Aug 2007

GlaxoSmithKline receives bulk H5N1 antigen order for the US national stockpile

GlaxoSmithKline has announced that HHS has placed another order to purchase bulk H5N1 antigen for the US national stockpile of pre-pandemic vaccines.

6 Aug 2007

Study cautions against use of coronary CT angiography in children

Cardiac-gated CTA radiation doses can vary and be as high as 28.4 mSv (10 times the annual natural background radiation) in children, according to a recent study conducted by researchers from Duke University Medical Center in Durham, NC and Stanford University Medical Center in Palo Alto, CA.

3 Aug 2007

Genomics study provides insight into the evolution of unique human traits

Researchers from the University of Colorado Health Sciences Center, along with colleagues from Stanford University, report the results of a large-scale, genome-wide study to investigate gene copy number differences among ten primate species, including humans.

1 Aug 2007