TY - JOUR A1 - Lara Beuatell, Cristóbal A1 - Reyes, Nerea de los A1 - Ortega, Miguel A. A1 - Alvarez-Mon, Melchor A1 - García-Honduvilla, Natalio A1 - Buján-Varela, Julia A1 - Maldonado, Andrés A. T1 - Local growth hormone therapy for pressure ulcer healing on a human skin mouse model T2 - International journal of molecular sciences N2 - The growth hormone is involved in skin homeostasis and wound healing. We hypothesize whether it is possible to improve pressure ulcer (PU) healing by locally applying the recombinant human growth hormone (rhGH) in a human skin mouse model. Non-obese diabetic/severe combined immunodeficient mice (n = 10) were engrafted with a full-thickness human skin graft. After 60 days with stable grafts, human skin underwent three cycles of ischemia-reperfusion with a compression device to create a PU. Mice were classified into two groups: rhGH treatment group (n = 5) and control group (n = 5). In the rhGH group for local intradermal injections, each had 0.15 mg (0.5IU) applied to the PU edges, once per week for four weeks. Evaluation of the wound healing was conducted with photographic and visual assessments, and histological analysis was performed after complete wound healing. The results showed a healing rate twice as fast in the rhGH group compared to the control group (1.25 ± 0.33 mm2/day versus 0.61 ± 0.27 mm2/day; p-value < 0.05), with a faster healing rate during the first 30 days. The rhGH group showed thicker skin (1953 ± 457 µm versus 1060 ± 208 µm; p-value < 0.05) in the repaired area, with a significant decrease in collagen type I/III ratio at wound closure (62 days, range 60–70). Local administration of the rhGH accelerates PU healing in our model. The rhGH may have a clinical use in pressure ulcer treatmen KW - growth hormone KW - human skin graft KW - pressure ulcer treatment KW - wound healing Y1 - 2019 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/51840 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-518404 SN - 1422-0067 SN - 1661-6596 N1 - This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited VL - 20 IS - 17, Art. 4157 SP - 1 EP - 15 PB - Molecular Diversity Preservation International CY - Basel ER -