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Health & MedicineGene transfer puts good fats in mammals
Scientists have used a worm gene to genetically engineer mice whose tissues are unusually rich in the heart-healthy fats found mainly in fish.
By Ben Harder -
AstronomyPulsar pas de deux
Astronomers have for the first time discovered two pulsars orbiting each other, offering the chance for new precision tests of Einstein's theory of general relativity.
By Ron Cowen -
Keeping abreast of serotonin’s roles
Serotonin, a chemical typically associated with the brain, also controls milk production in mammary glands.
By John Travis -
TechBody Builders
By growing stem cells on three- dimensional polymer scaffolds, tissue engineers hope to mimic natural tissue development and ultimately produce replacement body parts.