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.
The summary of gene profiling by categories in PDL tissue. (a) Ratio of four categories in all top 20 genes: collagens (51%), genes for gene regulation (23%), noncollagenous ECM (14%), and others (12%). (b) Ratio of three categories in top 20 ECM genes: collagens (75%), noncollagenous proteins (20%), and proteoglycans (5%). ECM, extracellular matrix; PDL, periodontal ligament
