Total dentate gyrus neuron number

Age is associated with total dentate gyrus neuron number in rats (Net increase of 385,000 cells).

“Consistent with neurogenic growth, the total number of DG neurons increased across adulthood.”

Animalsdentate gyrus

The Dentate Gyrus Grows Throughout Life Despite Turnover of Developmentally-Born Neurons

Hippocampus·20 Apr 2026