Evaluation of Wound Closure Activity of Nigella sativa, Melastoma malabathricum, Pluchea indica, and Piper sarmentosum Extracts on Scratched Monolayer of Human Gingival Fibroblasts

Figure 4

A bar chart indicating the production of collagen by HGF under various culture conditions. DMEM/0.3% FBS was a basic medium used as a negative control; DMEM/10% FBS was an enriched medium used as a positive control; allantoin (25 µg/mL) is a skin enhancer often used in skincare products which was used for comparative purpose; and NSSE (25 µg/mL) was the test sample. The values plotted were means of 6 determinations (). values at were indicated by ().