All Stories by John Travis
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Ibuprofen cuts Alzheimer protein build-up
The common nonprescription drug ibuprofen may lessen abnormal accumulation of beta-amyloid in the brain, perhaps explaining how the drug decreases the risk of developing Alzheimer's disease.
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Silence of the Xs
Does junk DNA help women muffle one X chromosome?
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Ebola protein explains deadly mystery
The infamous virus called Ebola has a surface protein that kills cells in blood vessels.
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Pass the Genes, Please
Gene swapping muddles the history of microbes.
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E. coli toxin shows its deadly touch
A toxin from a bacterium that causes food poisoning appears to kill cells by interacting with a protein called Bcl-2.
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Protein helps the brain connect
Neuroligins may help brain cells form specialized links known as synapses.
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Brain, heal thyself
The rodent brain can be stimulated to replace damaged cells with new ones.
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Man-made thymus churns out immune cells
Scientists have constructed an artificial thymus to make immune cells in the laboratory.
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Possible Alzheimer’s vaccine seems safe
A vaccine intended to slow or prevent the devastation of Alzheimer's disease appears promising, according to preliminary tests in people.
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Human Genome Work Reaches Milestone
Two rival groups jointly announced that each has read essentially all of the 3 billion or so letters that spell out the human genome, the genetic information encoded with the 6 feet of DNA coiled up in every human cell.
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Brain wiring depends on multifaceted gene
A single gene may produce 38,000 unique proteins that guide the growth of the developing brain.
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Mice have a sharp nose for pheromones
Mice can detect pheromones with great sensitivity and in a way that's distinct from that of the main olfactory system.
