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.
Trypan blue and BBB. A: Trypan blue dye in hippocam-pus of a sham rat. No breakdown of BBB was observed. Trypan blue was only positive in vascular space (100 ×); B: Trypan blue dye diffusion due to the breakdown of BBB as an example of what was observed in hippocampus in groups II, III and IV (100 ×).
