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Verdú-Soriano J, de Cristino-Espinar M, Luna-Morales S, Dios-Guerra C, Casado-Díaz A, Quesada-Gómez JM, Dorado G, Berenguer-Pérez M, Vílchez S, Esquena J, Rodríguez-Mañas L, Lázaro-Martínez JL. EHO-85, Novel Amorphous Antioxidant Hydrogel, Containing Olea europaea Leaf Extract-Rheological Properties, and Superiority over a Standard Hydrogel in Accelerating Early Wound Healing: A Randomized Controlled Trial. Pharmaceutics 2023; 15:1925. [PMID: 37514112 PMCID: PMC10383111 DOI: 10.3390/pharmaceutics15071925] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 06/26/2023] [Accepted: 07/07/2023] [Indexed: 07/30/2023] Open
Abstract
Many advanced wound healing dressings exist, but there is little high-quality evidence to support them. To determine the performance of a novel amorphous hydrogel (EHO-85) in relation to its application, we compared its rheological properties with those of other standard hydrogels (SH), and we assessed the induction of acceleration of the early stages of wound healing as a secondary objective of a prospective, multicenter, randomized, observer-blinded, controlled trial. The patients were recruited if they had pressure, venous, or diabetic foot ulcers and were treated with EHO-85 (n = 103) or VariHesive® (SH) (n = 92), and their response was assessed by intention-to-treat as wound area reduction (WAR (%)) and healing rate (HR mm2/day) in the second and fourth weeks of treatment. Results: EHO-85 had the highest shear thinning and G'/G″ ratio, the lowest viscous modulus, G″, and relatively low cohesive energy; EHO-85 had a significantly superior effect over SH in WAR and HR, accelerating wound healing in the second and fourth weeks of application (p: 0.002). This superiority is likely based on its optimal moisturizing capacity and excellent pH-lowering and antioxidant properties. In addition, the distinct shear thinning of EHO-85 facilitates spreading by gentle hand pressure, making it easier to apply to wounds. These rheological properties contribute to its improved performance.
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Affiliation(s)
- José Verdú-Soriano
- Department of Community Nursing, Preventive Medicine, Public Health and History of Science, Faculty of Health Sciences, University of Alicante, 03690 Alicante, Spain
| | - Marisol de Cristino-Espinar
- Pharmacy Department, Reina Sofia University Hospital, 14004 Córdoba, Spain
- Maimonides Institute of Biomedical Research of Cordoba (IMIBIC), Reina Sofía University Hospital, University of Córdoba, 14004 Córdoba, Spain
| | - Silvia Luna-Morales
- Maimonides Institute of Biomedical Research of Cordoba (IMIBIC), Reina Sofía University Hospital, University of Córdoba, 14004 Córdoba, Spain
- Occidente Health Center, Córdoba and Guadalquivir Health Management Area, 14005 Córdoba, Spain
| | - Caridad Dios-Guerra
- Maimonides Institute of Biomedical Research of Cordoba (IMIBIC), Reina Sofía University Hospital, University of Córdoba, 14004 Córdoba, Spain
- Occidente Health Center, Córdoba and Guadalquivir Health Management Area, 14005 Córdoba, Spain
- Department of Nursing, Faculty of Medicine and Nursing, University of Cordoba, 14004 Córdoba, Spain
| | - Antonio Casado-Díaz
- Maimonides Institute of Biomedical Research of Cordoba (IMIBIC), Reina Sofía University Hospital, University of Córdoba, 14004 Córdoba, Spain
- Endocrinology and Nutrition Unit, Reina Sofia University Hospital, 14004 Cordoba, Spain
- Consortium for Biomedical Research in Frailty & Healthy Ageing (CIBERFES), Institute of Health Carlos III, 28029 Madrid, Spain
| | - José Manuel Quesada-Gómez
- Maimonides Institute of Biomedical Research of Cordoba (IMIBIC), Reina Sofía University Hospital, University of Córdoba, 14004 Córdoba, Spain
- Consortium for Biomedical Research in Frailty & Healthy Ageing (CIBERFES), Institute of Health Carlos III, 28029 Madrid, Spain
| | - Gabriel Dorado
- Consortium for Biomedical Research in Frailty & Healthy Ageing (CIBERFES), Institute of Health Carlos III, 28029 Madrid, Spain
- Dep. Bioquímica y Biología Molecular, Campus Rabanales C6-1-E17, Campus de Excelencia Internacional Agroalimentario (ceiA3), Universidad de Córdoba, 14071 Córdoba, Spain
| | - Miriam Berenguer-Pérez
- Department of Community Nursing, Preventive Medicine, Public Health and History of Science, Faculty of Health Sciences, University of Alicante, 03690 Alicante, Spain
| | - Susana Vílchez
- Institute of Advanced Chemistry of Catalonia, Consejo Superior de Investigaciones Científicas (IQAC-CSIC), 08034 Barcelona, Spain
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Institute of Health Carlos III, 28029 Madrid, Spain
| | - Jordi Esquena
- Institute of Advanced Chemistry of Catalonia, Consejo Superior de Investigaciones Científicas (IQAC-CSIC), 08034 Barcelona, Spain
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Institute of Health Carlos III, 28029 Madrid, Spain
| | - Leocadio Rodríguez-Mañas
- Consortium for Biomedical Research in Frailty & Healthy Ageing (CIBERFES), Institute of Health Carlos III, 28029 Madrid, Spain
- Geriatric Research Group, Biomedical Research Foundation at Getafe University Hospital, 28905 Getafe, Spain
- Department of Geriatrics, University Hospital of Getafe, 28905 Getafe, Spain
| | - José Luis Lázaro-Martínez
- Diabetic Foot Unit, University Podiatry Clinic, Complutense University of Madrid, 28040 Madrid, Spain
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EHO-85: A Multifunctional Amorphous Hydrogel for Wound Healing Containing Olea europaea Leaf Extract: Effects on Wound Microenvironment and Preclinical Evaluation. J Clin Med 2022; 11:jcm11051229. [PMID: 35268320 PMCID: PMC8911171 DOI: 10.3390/jcm11051229] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 02/18/2022] [Accepted: 02/22/2022] [Indexed: 11/27/2022] Open
Abstract
The prevalence of chronic wounds is increasing due to the population aging and associated pathologies, such as diabetes. These ulcers have an important socio-economic impact. Thus, it is necessary to design new products for their treatment with an adequate cost/effectiveness ratio. Among these products are amorphous hydrogels. Their composition can be manipulated to provide a favorable environment for ulcer healing. The aim of this study was to evaluate a novel multifunctional amorphous hydrogel (EHO-85), containing Olea europaea leaf extract, designed to enhance the wound healing process. For this purpose, its moistening ability, antioxidant capacity, effect on pH in the wound bed of experimental rats, and the effect on wound healing in a murine model of impaired wound healing were assessed. EHO-85 proved to be a remarkable moisturizer and its application in a rat skin wound model showed a significant antioxidant effect, decreasing lipid peroxidation in the wound bed. EHO-85 also decreased the pH of the ulcer bed from day 1. In addition, in mice (BKS. Cg-m +/+ Leprdb) EHO-85 treatment showed superior wound healing rates compared to hydrocolloid dressing. In conclusion, EHO-85 can speed up the closure of hard-to-heal wounds due to its multifunctional properties that are able to modulate the wound microenvironment, mainly through its remarkable effect on reactive oxygen species, pH, and moistening regulation.
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