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 K36H on UVA-induced matrix metalloproteinase (MMP)-1, MMP-2 and TIMP-1 expression in human epidermal keratinocytes. Significant difference versus the nonirradiated group: ## p < 0.01; ### p < 0.001. Significant difference versus the nontreatment group: * p < 0.05; *** p < 0.001.
