Keratinocytes   ESWT (0,1 mJ/mm2, 100 Impulse, 1Hz, 5cm) Control   positivestained cells (%) Intensity positive stained cells (%) Intensity Ki-67   14 ++ to +++ 10 ++ to +++ CK 5   95 ++ to +++ 85 ++ to +++ CK14   90 ++ 85 ++ CK10   24 + to +++ 33 + to +++

Table 1: Comparative representation of the expression of cytokeratins CK5, CK14 and CK10 as well as the proliferation marker Ki-67 ESW-treated and untreated keratinocytes as a percentage as well as provision of the intensity of the precipitates formed (legend: + = mild , ++ = average, +++ = strong); n=5.