Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Quantification of neuronal cell cycle activity within cortical layers. Percentages of neurons exhibiting immunoreactivity for cell cycle re-entry were tabulated in both male and female B6-R1.40 transgenic and non-transgenic mice aged 6–12 months. A–C, Cell cycle re-entry was tabulated by scoring cyclin A (A) and cyclin D (B) immunoreactive neurons and polyploid neurons (C) in the frontal cortex.
