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Research gaining momentum by silencing genes

Along with five European academic laboratories, researchers from the Flanders Interuniversity Institute for Biotechnology (VIB) connected to Ghent University are accelerating the study of the model plant Arabidopsis thaliana.

Taking advantage of the new RNAi technology, they are able to study the function of genes with the aid of specially designed fragments that turn off the corresponding genes. The scientists are building a collection of such fragments in Arabidopsis. Their ul

Low-cost climate-change insurance could help ensure better future

Doing a little now to mitigate long-term climate change would cost much less than doing nothing and making an adjustment in the future, say scientists whose paper appears in the Oct. 15 issue of the journal Science.

Implementing a carbon tax of five cents per gallon of gasoline and gradually increasing the tax over the next 30 years is the optimal solution, the researchers report. “You can think of the tax as a low-cost insurance policy that protects against climate change,” sa

Channel protein converts vibrations to electrical signal

Researchers have identified a molecule that can transform the mechanical stimulus of a sound wave into an electrical signal recognizable by the brain. The protein forms an ion channel that opens in response to sound, causing electrical impulses that communicate the pitch, volume, and duration of a sound to the brain.

Scientists have long suspected that such a molecule must exist in the tiny cilia extending from receptor cells in the inner ear. Now, researchers led by Howard Hughes M

New study on smallpox in monkeys reveals tactics of a killer

Results of a new study in monkeys offer scientists a rare glimpse of how, on a molecular level, the smallpox virus attacks its victims. The findings shed light on how the virus caused mass death and suffering, and will help point the way to new diagnostics, vaccines and drugs that would be needed in the event of a smallpox bioterror incident.

The study, led by David Relman, M.D., of Stanford University, is now online in the Proceedings of the National Academy of Sciences (PNAS

New method identifies chromosome changes in malignant cells

Combination of computer science and biology could aid cancer research

In a boost to cancer research, Princeton scientists have invented a fast and reliable method for identifying alterations to chromosomes that occur when cells become malignant. The technique helps to show how cells modify their own genetic makeup and may allow cancer treatments to be tailored more precisely to a patient’s disease. Cancer cells are known among biologists for their remarkable ability to disable s

New study will tackle three major killer diseases

Researchers from the University of Edinburgh are launching a new two-year study aimed at improving treatment for three of Scotland’s most common life-threatening diseases: heart disease, stroke and diabetes. The study will recruit 1,000 adults from one of the remotest parts of the UK– the North Isles of Orkney. The islands have been chosen for the project because the people living there are isolated geographically, which means they share a more similar environment: there is less variety in

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