Once implanted into animals’ brains, neural stem cells that secrete microRNA-containing vesicles seem to contribute to an anti-aging effect.
By now, you have no doubt heard that three biologists are putting into serious question the reappearance of the ivory-billed woodpecker in the southern US. See the Girl Scientist?s blog for some interesting commentary and a lengthy interview with Tim Gallagher, one of the authors of the original Science report on the find. The New York Times covered the skeptical scientists yesterday (July 21). But one thing yesterday?s story neglected to mention was the Times? own awestruck editorial, on Apr
July 22, 2005|