young tagged posts

An artist’s impression of a galaxy within which lies a supermassive black hole. The black hole drives enormous outflows of plasma from the galaxy’s core which produce prodigious amounts of radio emission. In this image, the outflows travel toward the upper left and lower right. Credit: ESA/Hubble, L. Calçada (ESO)

With new survey, a team has doubled the number of known young, compact radio galaxies powered by newly energized black holes. The improved tally will help astronomers understand the relationship between the size of these radio sources and their age, as well as the nature of the galaxy itself. In particular, it will help astronomers understand why there are so many more young radio galaxies than old...

The Salk team expanded upon their previous development of a drug candidate J147, which takes a different tack by targeting Alzheimer’s major risk factor—old age. In the new work, the team showed that the drug candidate worked well in a mouse model of aging not typically used in Alzheimer’s research. When these mice were treated with J147, they had better memory and cognition, healthier blood vessels in the brain and other improved physiological features.

“Initially, the impetus was to test this drug in a novel animal model that was more similar to 99% of Alzheimer’s cases,” says Prof Antonio Currais. “We did not predict we’d see this sort of anti-aging effect, but J147 made old mice look like they were young, based upon a number of physiological parameters.”

Alzheimer’s is the 3rd ...