Dentate gyrus

New, unpublished results show some of the cells produce new neurons for up to 90 days, much longer than a previously identified set of neural stem cells that only generate neurons for a month or two.

Despite doubts last year about human adult neurogenesis, a study shows even 80-year-olds develop new cells in the hippocampus, but such growth is diminished in patients with Alzheimer’s disease.

A drug commonly used to treat clinical depression sets its effects in motion by hampering the release of an inhibitory neurotransmitter in mice.