Embryonic Layering of the Brain (IMAGE) Case Western Reserve University Caption Representative images of control (left) and Dvl mutants (right) embryonic brains at embryonic day 18.5 (E18.5, just before birth at E20) were stained with DAPI to highlight all of the nuclei (Blue), anti-Ctip2 (Green) for deep layer neurons and anti-Cux1 (Red) for more superficial layer neurons. Analysis of the results shows specific reduction of the deep layer (Ctip2+) neurons at E18.5. This reduction in deep layer neurons is preceded by a transient brain over growth at E14.5, associated with increased proliferation of neural progenitors and premature differentiation. Credit Case Western Reserve University School of Medicine Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.