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.
Collagen gel contraction assay with human explant fibroblasts from the ED/ES (A) and human foreskin fibroblasts (Ag 1518) (B), showing the reduction in gel area at different time points with unstimulated cells (–○–), cells stimulated with prostaglandin E1 1 μM (–□–), platelet derived growth factor-BB 20 ng/ml (–▴–) or both (–♦–). Each value represents a mean from six individual gels.
