Abstract
BackgroundPlatelet-rich plasma (PRP) provides growth factors that stimulate fibroblast activation and induce the synthesis of collagen and other components of the extracellular matrix. The objective of this study was to evaluate the effect of PRP in the treatment of photodamage of the skin of the hands. Material and methodsExperimental study enrolling persons with photoaged skin on the dorsum of the hands (Glogau photoaging scale, type III, or Fitzpatrick wrinkle classification, type II) were included between August 2012 and January 2013. A histological comparison was made of skin biopsies taken before and after the application of PRP to the skin of the dorsum of the hands. ResultsThe mean (SD) age of the 18 women enrolled was 47.9 (4.3) years. Histological analysis showed an increase in the number of fibroblasts (P<.001), number of vessels (P<.001), and collagen density (P=.27). These changes produced significant improvements in the Fitzpatrick wrinkle and elastosis scale (P<.001) and in the Glogau photoaging scale (P=.01). ConclusionsPRP induced a reduction in the manifestations of skin aging, including an improvement in wrinkles and elastosis.
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