Figure 3: The characteristics of molecular profile of extracts differently treated burn wounds buffered by urea solution and sodium dodecyl sulfate (SDS). Extract components, subjected to dithiothreitol as a factor reducing the disulfide bonds, were subjected to the electrophoresis in a 6% polyacrylamide gel in the presence of SDS. Lane 1, molecular mass markers; lane 2, standard of collagen type I; lanes 3, 4, 5, and 6, components extracted, on the 5th day of healing, from wounds treated by NaCl, SSD, propolis, and propolis vehicle, respectively. The arrows indicate the migration position of standards of known molecular weights (60 kDa, 100 kDa, and 220 kDa).