Soriano, José L.Calpena, Ana C.Rodríguez-Lagunas, María J.Domènech, ÒscarBozal-de Febrer, NuriaGarduño-Ramírez, María L.Clares, Beatriz2022-11-182022-11-182020-12-22Soriano JL, Calpena AC, Rodríguez-Lagunas MJ, Domènech Ò, Bozal-de Febrer N, Garduño-Ramírez ML, et al. Endogenous Antioxidant Cocktail Loaded Hydrogel for Topical Wound Healing of Burns. Pharmaceutics. 2020 Dec 22;13(1):8http://hdl.handle.net/10668/4364The main goal of this work is the study of the skin wound healing efficacy of an antioxidant cocktail consisting of vitamins A, D, E and the endogenous pineal hormone melatonin (MLT), with all of these loaded into a thermosensitive hydrogel delivery system. The resulting formulation was characterized by scanning electron microscopy. The antioxidant efficacy and microbiological activity against Gram positive and Gram negative strains were also assayed. The skin healing efficacy was tested using an in vivo model which included histological evaluation. Furthermore, atomic force microscopy was employed to evaluate the wound healing efficacy of rat skin burns through the determination of its elasticity at the nanoscale using force spectroscopy analysis. The resulting hydrogel exhibited sol state at low temperature and turned into a gel at 30 ± 0.2 °C. The hydrogel containing the antioxidant cocktail showed higher scavenging activity than the hydrogel containing vitamins or MLT, separately. The formulation showed optimal antimicrobial activity. It was comparable to a commercial reference. It was also evidenced that the hydrogel containing the antioxidant cocktail exhibited the strongest healing process in the skin burns of rats, similar to the assayed commercial reference containing silver sulfadiazine. Histological studies confirmed the observed results. Finally, atomic force microscopy demonstrated a similar distribution of Young's modulus values between burned skin treated with the commercial reference and burned skin treated with hydrogel containing the antioxidant cocktail, and all these with healthy skin. The use of an antioxidant cocktail of vitamins and MLT might be a promising treatment for skin wounds for future clinical studies.enAtribución 4.0 Internacionalhttp://creativecommons.org/licenses/by/4.0/VitaminsMelatoninAntioxidantSkinHealingATF microscopyVitaminasMelatoninaAntioxidantesPielCicatrización de heridasMicroscopía de fuerza atómicaMedical Subject Headings::Organisms::Eukaryota::Animals::Chordata::Vertebrates::Mammals::Rodentia::Muridae::Murinae::RatsMedical Subject Headings::Organisms::Eukaryota::AnimalsMedical Subject Headings::Chemicals and Drugs::Chemical Actions and Uses::Pharmacologic Actions::Molecular Mechanisms of Pharmacological Action::AntioxidantsMedical Subject Headings::Chemicals and Drugs::Hormones, Hormone Substitutes, and Hormone Antagonists::Hormones::MelatoninMedical Subject Headings::Chemicals and Drugs::Organic Chemicals::Amides::Sulfonamides::Sulfanilamides::Sulfadiazine::Silver SulfadiazineMedical Subject Headings::Analytical, Diagnostic and Therapeutic Techniques and Equipment::Diagnosis::Diagnostic Techniques and Procedures::Diagnostic Imaging::Microscopy::Microscopy, Electron::Microscopy, Electron, ScanningMedical Subject Headings::Psychiatry and Psychology::Behavior and Behavior Mechanisms::Motivation::GoalsMedical Subject Headings::Analytical, Diagnostic and Therapeutic Techniques and Equipment::Diagnosis::Diagnostic Techniques and Procedures::Diagnostic Imaging::Microscopy::Microscopy, Scanning Probe::Microscopy, Atomic ForceMedical Subject Headings::Phenomena and Processes::Biological Phenomena::Biological Processes::Regeneration::Wound HealingMedical Subject Headings::Analytical, Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Chemistry Techniques, Analytical::Spectrum AnalysisMedical Subject Headings::Chemicals and Drugs::Chemical Actions and Uses::Pharmacologic Actions::Therapeutic Uses::Anti-Infective AgentsMedical Subject Headings::Chemicals and Drugs::Chemical Actions and Uses::Pharmacologic Actions::Physiological Effects of Drugs::Growth Substances::Micronutrients::Vitaminsresearch article33375069Acceso abierto10.3390/pharmaceutics130100081999-4923PMC7822007