MMP13 and systemic sclerosis: MMP-3 (p = 0.155) (Fig. 3h), MMP-12 (p = 0.638) (Fig. 3i), MMP-13 (p = 0.241) (Fig. 3j) and FGF-1 (p = 0.707) (Fig. 3k) serum levels did not change after transplantation in SSc patients and were not different than healthy controls.