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.
Effect of STE on the cell viability of chondrocytes. Primary chondrocytes were stained by toluidine blue staining (A) and S–O staining (B) (scale bar: 100 μm). Chemical structure of STE (C). We incubated the cells with various concentrations of STE (0, 5, 10, 20, 40, 80, or 160 μM) for 24 (D) and 48 h (E). We calculated cell viability via a CCK-8 assay. Data were expressed as mean ± SD. ∗P < 0.05, ∗∗P < 0.01 (vs. con group, n = 3).
