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.
Electron microscopic analysis of septate junction formation. Electron micrographs focusing on the CNS blood–brain barrier of late-stage 17 embryos. A, B, Wild-type embryo. The boxed area in A is shown in B. The subperineurial glial cells (spg) establish prominent electron-dense ladder-like septate junctions (sj, arrowhead). C, D, In coiled mutant embryos, no septate junctions can be detected.
