Skip to main content
. Author manuscript; available in PMC: 2017 Feb 1.
Published in final edited form as: J Photochem Photobiol B. 2015 Dec 21;155:78–85. doi: 10.1016/j.jphotobiol.2015.12.014

Figure 3.

Figure 3

Reduction of MMP-1 levels by ELISA (enzyme-linked immunosorbent assay) in HRS (Human Reconstructed Skin) after LED treatments. A cyclic pattern of alternating highs and lows was observed in response to 11 consecutive treatments (T1–T11) for MMP levels. Values are percent differences ±SEM (n=9) between treated and untreated control HRS samples in mean levels of MMP-1 assessed in the supernatants after each treatment.