Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

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.

View full-text article in PMC

. 2021 Apr 19;2021:6634837. doi: 10.1155/2021/6634837

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

Copyright © 2021 Guang-Yao Chen et al.

This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

PMC Copyright notice

Effects of total flavonoids of Rhizoma Drynariae (TFRD) on MMP-1, MMP-3, MMP-13, and TIMP-4 mRNA expression in articular cartilage in the different groups. Group a, blank control group; Group b, OA model group (established with the Hulth method); Group c, TFRD-treated group (treated with TFRD after model induction with the Hulth method). The data are derived from six independent experiments and expressed as the mean ± standard deviation (^∗p < 0.05 compared with Group a; ^#p < 0.05 compared with Group b).