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AIDS, an evolutionary accident?

AIDS, a fatal disease in humans, may partly be the consequence of an evolutionary accident, scientists heard at the Society for General Microbiology's 162nd meeting being held this week at the Edinburgh International Conference Centre.

1 Apr 2008

Gene mutations tied to immune comeback during therapy for HIV-1

A new study by U.S. scientists provides compelling evidence that two genes are linchpins in defining the course of immune restoration in HIV-positive individuals undergoing virus-suppressing therapy.

31 Mar 2008

Discovery of new type of retinal cell

Harvard University researchers have discovered a new type of retinal cell that plays an exclusive and unusual role in mice: detecting upward motion.

31 Mar 2008

New method for cancer screening

Ongoing research at Missouri University of Science and Technology has uncovered a new method for the early detection of cancer with the potential to save millions of lives.

31 Mar 2008

Astrotechnology brings nanoparticle probes into sharper focus

While pondering the challenges of distinguishing one nanosize probe image from another in a mass of hundreds or thousands of nanoprobes, two investigators at Emory University and the Georgia Institute of Technology made an interesting observation. The tiny, clustered dots of light looked a lot like a starry sky on a clear night.

27 Mar 2008

A new form of inherited risk of cancer found

Like the subtext of a novel, the human genome sequence harbors more information than appears just in its "letters" of A, C, T and G. Since DNA is a data-packed molecule passed from generation to generation, comparing genome sequences among individuals also holds clues to ancestry.

26 Mar 2008

A biosensing nanodevice to revolutionize health screenings

One day soon a biosensing nanodevice developed by Arizona State University researcher Wayne Frasch may eliminate long lines at airport security checkpoints and revolutionize health screenings for diseases like anthrax, cancer and antibiotic resistant Staphylococcus aureus (MRSA).

26 Mar 2008

Microbes in the guts of carpenter ants could lead to better drugs

Scientists have discovered two key proteins that guide one of the two groups of pathogenic bacteria to make their hardy outer shells -- their defense against the world.

26 Mar 2008

New drug targets for Huntington's disease

Research funded by the Wellcome Trust has provided a number of promising new drug targets for Huntington's disease, a neurodegenerative disease.

25 Mar 2008

microRNA shown to reduce lung cancer growth

A small RNA molecule, known as let-7 microRNA (miRNA), substantially reduced cancer growth in multiple mouse models of lung cancer, according to work by researchers at Yale University and Asuragen, Inc., published in the journal Cell Cycle.

24 Mar 2008

New insight into radiation damage to DNA

A new technique for assessing the damage radiation causes to DNA indicates that the spatial arrangement of damaged sites, or lesions, is more important than the number of lesions in determining the severity of the damage.

24 Mar 2008

New understanding of Norwalk virus

Using the Canadian Light Source synchrotron, an international team led by University of Calgary researcher Ken Ng has determined the detailed structure of the enzyme the Norwalk virus uses to make copies of its genetic code in order to replicate itself.

20 Mar 2008

Neuronal regulators offer potential targets for cancer

Being too brainy can be a bad thing in a junior high cafeteria, where the social hierarchy favors other traits. "Braininess" also causes problems for cells.

20 Mar 2008

First detailed look at the molecular pathways underlying sleep apnea

Researchers at the University of Pennsylvania School of Medicine have provided, for the first time, a detailed look at the molecular pathways underlying sleep apnea, which affects more than twelve million Americans, according to the National Institutes of Health.

20 Mar 2008