A molecule found only in the blood of young mice dramatically reverses thickening and stiffening of the heart muscle in old mice.
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Mice that explore more have higher levels of neurogenesis, suggesting a link between experience, brain plasticity, and the emergence of distinct personalities.
Genetic material recovered from sediment beneath the sea floor reveals ancient species not contained in the fossil record and could shed light on climate change.
Christian de Duve chose to be euthanized at home in Belgium at age 95.
As telomeres shorten with age, genes as far as 1,000 kilobases away could be affected, including one responsible for an inherited muscle disease.
Researchers use a protein-lipid complex found in human breast milk to increase the activity of otherwise-ineffective antibiotics against drug-resistant pathogens.
Hybrid viruses derived from an H5N1 bird flu strain can infect guinea pigs through the air.
By varying the size of their steps, dynein motor proteins work effectively as teams to carry heavy loads around the cell.
Viral infections of the central nervous system may trigger cytokines that induce seizures.
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