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Jiang Y, Cao Y, Wu J, Bai R, Wan S, Dai L, Su J, Sun H. Au nanozyme-based multifunctional hydrogel for inflammation visible monitoring and treatment. Mater Today Bio 2024; 25:100960. [PMID: 38322658 PMCID: PMC10844747 DOI: 10.1016/j.mtbio.2024.100960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Revised: 01/10/2024] [Accepted: 01/15/2024] [Indexed: 02/08/2024] Open
Abstract
Chronic inflammation can delay wound healing, eventually leading to tissue necrosis and even cancer. Developing real-time intelligent inflammation monitoring and treatment to achieve effective wound management is important to promote wound healing. In this study, a smart multifunctional hydrogel (Hydrogel@Au NCs&DG) was proposed to monitor and treat the wound inflammation. It was prepared by mixing 3-carboxy-phenylboronic acid modified chitosan (CS-cPBA), β-glycerophosphate (β-GP), albumin-protected gold nanoclusters (BSA-Au NCs), and dipotassium glycyrrhizinate (DG) about 10 s. In this hydrogel, CS-cPBA and β-GP are crosslinked together by boric acid ester bond and hydrogen bond to form the main hydrogel network, endowing the hydrogel with self-healing and injectable properties to adapt irregular wounds. Importantly, the as-prepared hydrogel with good biocompatibility and excellent adhesion property could directly determine the H2O2 to monitor the wound microenvironment by visible fluorescence change of BSA-Au NCs and then guide the frequency of dressing change to eliminate inflammation. The results demonstrated that the as-prepared smart hydrogel could be expected to serve as an intelligent wound dressing to promote inflammation-infected wound healing.
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Affiliation(s)
- Yunjing Jiang
- Collaborative Grant-in-Aid of the HBUT National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Key Laboratory of Industrial Microbiology in Hubei, Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), School of Bioengineering and Food, Hubei University of Technology, Wuhan, 430068, China
| | - Yuyu Cao
- Collaborative Grant-in-Aid of the HBUT National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Key Laboratory of Industrial Microbiology in Hubei, Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), School of Bioengineering and Food, Hubei University of Technology, Wuhan, 430068, China
| | - Jie Wu
- Collaborative Grant-in-Aid of the HBUT National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Key Laboratory of Industrial Microbiology in Hubei, Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), School of Bioengineering and Food, Hubei University of Technology, Wuhan, 430068, China
| | - Rongxian Bai
- Collaborative Grant-in-Aid of the HBUT National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Key Laboratory of Industrial Microbiology in Hubei, Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), School of Bioengineering and Food, Hubei University of Technology, Wuhan, 430068, China
| | - Shufan Wan
- Collaborative Grant-in-Aid of the HBUT National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Key Laboratory of Industrial Microbiology in Hubei, Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), School of Bioengineering and Food, Hubei University of Technology, Wuhan, 430068, China
| | - Lei Dai
- Collaborative Grant-in-Aid of the HBUT National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Key Laboratory of Industrial Microbiology in Hubei, Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), School of Bioengineering and Food, Hubei University of Technology, Wuhan, 430068, China
| | - Jiangtao Su
- Collaborative Grant-in-Aid of the HBUT National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Key Laboratory of Industrial Microbiology in Hubei, Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), School of Bioengineering and Food, Hubei University of Technology, Wuhan, 430068, China
| | - Hongmei Sun
- Collaborative Grant-in-Aid of the HBUT National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Key Laboratory of Industrial Microbiology in Hubei, Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), School of Bioengineering and Food, Hubei University of Technology, Wuhan, 430068, China
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2
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Raval YS, Fleming D, Mohamed A, Karau MJ, Mandrekar JN, Schuetz AN, Greenwood Quaintance KE, Beyenal H, Patel R. In Vivo Activity of Hydrogen-Peroxide Generating Electrochemical Bandage Against Murine Wound Infections. ADVANCED THERAPEUTICS 2023; 6:2300059. [PMID: 37485434 PMCID: PMC10361686 DOI: 10.1002/adtp.202300059] [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: 02/16/2023] [Indexed: 03/06/2023]
Abstract
Biofilms formed by antibiotic-resistant bacteria in wound beds present unique challenges in terms of treating wound infections. In this work, the in vivo activity of a novel electrochemical bandage (e-bandage) composed of carbon fabric and controlled by a wearable potentiostat, designed to continuously deliver low amounts of hydrogen peroxide (H2O2) was evaluated against methicillin-resistant Staphylococcus aureus (MRSA), multidrug-resistant Pseudomonas aeruginosa (MDR-PA) and mixed-species (MRSA and MDR-PA) wound infections. Wounds created on Swiss Webster mice were infected with the above-named bacteria and biofilms allowed to establish on wound beds for 3 days. e-Bandages, which electrochemically reduce dissolved oxygen to H2O2 when polarized at -0.6 VAg/AgCl, were placed atop the infected wound bed and polarized continuously for 48 hours. Polarized e-bandage treatment resulted in significant reductions (p <0.001) of both mono-species and mixed-species wound infections. After e-bandage treatment, electron microscopy showed degradation of bacterial cells, and histopathology showed no obvious alteration to the inflammatory host response. Blood biochemistries showed no abnormalities. Taken all together, results of this work suggest that the described H2O2-producing e-bandage can effectively reduce in vivo MRSA, MDR-PA and mixed-species wound biofilms, and should be further developed as a potential antibiotic-free strategy for treatment of wound infections.
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Affiliation(s)
- Yash S. Raval
- Department of Laboratory Medicine and Division of Clinical Microbiology, Mayo Clinic, Rochester, MN
| | - Derek Fleming
- Department of Laboratory Medicine and Division of Clinical Microbiology, Mayo Clinic, Rochester, MN
| | - Abdelrhman Mohamed
- The Gene and Linda Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, WA
| | - Melissa J. Karau
- Department of Laboratory Medicine and Division of Clinical Microbiology, Mayo Clinic, Rochester, MN
| | | | - Audrey N. Schuetz
- Department of Laboratory Medicine and Division of Clinical Microbiology, Mayo Clinic, Rochester, MN
| | | | - Haluk Beyenal
- The Gene and Linda Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, WA
| | - Robin Patel
- Department of Laboratory Medicine and Division of Clinical Microbiology, Mayo Clinic, Rochester, MN
- Division of Public Health, Infectious Diseases, and Occupational Medicine, Mayo Clinic, Rochester, MN
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In Vitro Activity of a Hypochlorous Acid-Generating Electrochemical Bandage against Yeast Biofilms. Antimicrob Agents Chemother 2023; 67:e0116622. [PMID: 36472429 PMCID: PMC9872635 DOI: 10.1128/aac.01166-22] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The antibiofilm activity of a hypochlorous acid (HOCl)-producing electrochemical bandage (e-bandage) was assessed against 14 yeast isolates in vitro. The evaluated e-bandage was polarized at +1.5 VAg/AgCl to allow continuous production of HOCl. Time-dependent decreases in the biofilm CFU counts were observed for all isolates with e-bandage treatment. The results suggest that the described HOCl-producing e-bandage could serve as a potential alternative to traditional antifungal wound biofilm treatments.
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Raval YS, Mohamed A, Flurin L, Mandrekar JN, Greenwood Quaintance KE, Beyenal H, Patel R. Hydrogen-peroxide generating electrochemical bandage is active in vitro against mono- and dual-species biofilms. Biofilm 2021; 3:100055. [PMID: 34585138 PMCID: PMC8455977 DOI: 10.1016/j.bioflm.2021.100055] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Revised: 08/04/2021] [Accepted: 08/07/2021] [Indexed: 12/20/2022] Open
Abstract
Biofilms formed by antibiotic-resistant bacteria in wound beds present unique challenges in terms of treating chronic wound infections; biofilms formed by one or more than one bacterial species are often involved. In this work, the in vitro anti-biofilm activity of a novel electrochemical bandage (e-bandage) composed of carbon fabric and controlled by a wearable potentiostat, designed to continuously deliver low amounts of hydrogen peroxide (H2O2) was evaluated against 34 mono-species and 12 dual-species membrane bacterial biofilms formed by Staphylococcus aureus, S. epidermidis, Enterococcus faecium, E. faecalis, Streptococcus mutans, Escherichia coli, Pseudomonas aeruginosa, Acinetobacter baumannii, Klebsiella pneumoniae, Cutibacterium acnes, and Bacteroides fragilis. Biofilms were grown on polycarbonate membranes placed atop agar plates. An e-bandage, which electrochemically reduces dissolved oxygen to H2O2 when polarized at -0.6 VAg/AgCl, was then placed atop each membrane biofilm and polarized continuously for 12, 24, and 48 h using a wearable potentiostat. Time-dependent decreases in viable CFU counts of all mono- and dual-species biofilms were observed after e-bandage treatment. 48 h of e-bandage treatment resulted in an average reduction of 8.17 ± 0.40 and 7.99 ± 0.32 log10 CFU/cm2 for mono- and dual-species biofilms, respectively. Results suggest that the described H2O2 producing e-bandage can reduce in vitro viable cell counts of biofilms grown either in mono- or dual-species forms, and should be further developed as a potential antibiotic-free treatment strategy for treating chronic wound infections.
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Affiliation(s)
- Yash S. Raval
- Division of Clinical Microbiology, Mayo Clinic, Rochester, MN, USA
| | - Abdelrhman Mohamed
- The Gene and Linda Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, WA, USA
| | - Laure Flurin
- Division of Clinical Microbiology, Mayo Clinic, Rochester, MN, USA
| | | | | | - Haluk Beyenal
- The Gene and Linda Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, WA, USA
| | - Robin Patel
- Division of Clinical Microbiology, Mayo Clinic, Rochester, MN, USA
- Division of Infectious Diseases, Mayo Clinic, Rochester, MN, USA
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Rai S, Gupta TP, Shaki O, Kale A. Hydrogen Peroxide: Its Use in an Extensive Acute Wound to Promote Wound Granulation and Infection Control - Is it Better Than Normal Saline? INT J LOW EXTR WOUND 2021:15347346211032555. [PMID: 34338578 DOI: 10.1177/15347346211032555] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Background: Hydrogen peroxide (H2O2) is used as a topical antiseptic in contaminated wounds caused by road traffic accidents. It kills bacteria by producing oxidation through local, nascent, free oxygen radicals. It also removes dirt from the wound due to its frothing action. H2O2 is synthesized by various cells as an active biochemical agent that affects cell biological behavior through complex chemical reactions. H2O2 has also been used as a wound cleaning agent, removing debris, preventing infection, and causing hemostasis due to its exothermic reaction with blood. Despite its widespread use, there is scanty literature on its use to promote granulation tissue formation. Objective: In the orthopaedics literature, studies on H2O2 use are very limited and its potential is underestimated. In the present study, we would like to report our protocol of use of H2O2 for its tremendous potential for stimulating granulation and early wound healing. Material and Methods: A total of 53 patients with large acute extensive lower limb contaminated wounds reported to the emergency department have been included with and without lower limb fracture. In group A (43 patients) wound management was done using 7% H2O2 and group B (10 patients) was treated by only saline dressing as a control group. Results: In the present study, daily dressing by 7% H2O2 solution and provide solution gives excellent results compared to the Saline group. Granulation tissue appeared much earlier with a mean SD 6.3 ± 6.8 days in the hydrogen peroxide group as compared to the Saline group where granulation tissue appeared in 9.3 ± 8.4 days. Conclusion: Spontaneous wound healing is a controlled balance between destructive and healing processes. It is mandatory to remove damaged tissue to promote healing by secondary intention and minimize infection. The dynamic effect of H2O2 promotes faster healing, stimulates granulation, and minimizes infection by oxidative stress.
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Affiliation(s)
- Sanjay Rai
- Base Hospital Guwahati, Basistha Guwahati, India
| | | | - Omna Shaki
- Base Hospital Guwahati, Basistha Guwahati, India
| | - Amit Kale
- Base Hospital Guwahati, Basistha Guwahati, India
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Pekbağrıyanık T, Dadas FK, Enhoş Ş. Effects of non-thermal atmospheric pressure plasma on palatal wound healing of free gingival grafts: a randomized controlled clinical trial. Clin Oral Investig 2021; 25:6269-6278. [PMID: 33877440 DOI: 10.1007/s00784-021-03925-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Accepted: 03/29/2021] [Indexed: 01/10/2023]
Abstract
OBJECTIVE The aim of this trial was to evaluate the effects of non-thermal atmospheric pressure plasma (NAPP) on wound healing, epithelization, local pain, bleeding, and alteration of sensation in palatal donor site. MATERIALS AND METHODS Forty patients with inadequate attached gingiva were included in the study. Patients were divided into two groups: (i) NAPP group (Free gingival graft [FGG] + NAPP) and (ii) control group (FGG alone). NAPP was performed immediately after the operation and on days 3 and 7. Pain, bleeding, and the amount of medication were recorded by patients every day. Epithelization in donor site, alteration of sensation and color match were assessed weekly for 2 months. Inter-group comparisons of continuous variables by time were performed with two-way repeated measures ANOVA test and a general linear model. Categorical variables were compared using Chi-square exact test. A p value of < 0.05 was considered significant. RESULTS At week 2, the number of patients with complete epithelization was greater in the NAPP group compared to the control group (p < 0.05). Additionally, color match in donor site was better in the NAPP group than in the control group (p < 0.05) during the first five follow-up assessments. No significant difference was found between the two groups with regard to bleeding, pain level, drug use, and alteration of sensation. CONCLUSION The NAPP application increased the epithelization and accelerated the wound healing process although it did not decrease the level of pain and sensation. CLINICAL RELEVANCE Our data suggested that the NAPP application may help epithelization and thus may shorten the recovery time after oral surgeries.
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Affiliation(s)
- Tuğba Pekbağrıyanık
- Department of Periodontology, Izmir Katip Celebi University, 35640, Cigli, Izmir, Turkey. .,Public Oral Health Care Center, 35560, Karsıyaka, Izmir, Turkey.
| | - Fadime Kaya Dadas
- Department of Periodontology, Izmir Katip Celebi University, 35640, Cigli, Izmir, Turkey.,Private Practice, Izmir, Turkey
| | - Şükrü Enhoş
- Department of Periodontology, Izmir Katip Celebi University, 35640, Cigli, Izmir, Turkey
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in vitro Activity of Hydrogen Peroxide and Hypochlorous Acid Generated by Electrochemical Scaffolds Against Planktonic and Biofilm Bacteria. Antimicrob Agents Chemother 2021; 65:AAC.01966-20. [PMID: 33649112 PMCID: PMC8092879 DOI: 10.1128/aac.01966-20] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Hydrogen peroxide (H2O2) and hypochlorous acid (HOCl) are biocides used for cleaning and debriding chronic wound infections, which often harbor drug resistant bacteria. Here, we evaluated the in vitro activity of H2O2 and HOCl against 27 isolates of eight bacterial species involved in wound infections. Minimum inhibitory concentrations (MICs) and minimum biofilm bactericidal concentrations (MBBCs) were measured. When compared to their respective MICs, MBBCs of isolates exposed to H2O2 were 16- to 1,024-fold higher and those exposed to HOCl were 2- to 4-fold higher. We evaluated selection of resistance after exposure of Staphylococcus aureus and Pseudomonas aeruginosa biofilms to 10 iterations of electrochemically generated HOCl or H2O2 delivered using electrochemical scaffolds (e-scaffolds), observing no decrease in anti-biofilm effects with serial exposure to e-scaffold-generated H2O2 or HOCl. 24-hour exposure to H2O2-generating e-scaffolds consistently decreased colony forming units (CFUs) of S. aureus and P. aeruginosa biofilms by ∼5.0-log10 and ∼4.78-log10 through 10 iterations of exposure, respectively. 4-hour exposure to HOCl-generating e-scaffolds consistently decreased CFUs of S. aureus biofilms by ∼4.9-log10, and 1-hour exposure to HOCl-generating e-scaffolds consistently decreased CFUs of P. aeruginosa biofilms by ∼1.57-log10 These results suggest that HOCl has similar activity against planktonic and biofilm bacteria, whereas the activity of H2O2 is less against biofilm than planktonic bacteria, and that repeat exposure to either biocide, generated electrochemically under the experimental conditions studied, does not lessen antibiofilm effects.
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Hydrogen Peroxide-Generating Electrochemical Scaffold Activity against Trispecies Biofilms. Antimicrob Agents Chemother 2020; 64:AAC.02332-19. [PMID: 31964793 DOI: 10.1128/aac.02332-19] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Accepted: 01/12/2020] [Indexed: 01/29/2023] Open
Abstract
The antibiofilm activity of a hydrogen peroxide-generating electrochemical scaffold (e-scaffold) was determined against mono- and trispecies biofilms of methicillin-resistant Staphylococcus aureus, multidrug-resistant Pseudomonas aeruginosa, and Candida albicans Significant time-dependent decreases were found in the overall CFU of biofilms of all three monospecies and the trispecies forms. Confocal laser scanning microscopy showed dramatic reductions in fluorescence intensities of biofilm matrix protein and polysaccharide components of e-scaffold-treated biofilms. The described e-scaffold has potential as a novel antibiotic-free strategy for treating wound biofilms.
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Genc Y, Dereli FTG, Saracoglu I, Akkol EK. The inhibitory effects of isolated constituents from Plantago major subsp. major L. on collagenase, elastase and hyaluronidase enzymes: Potential wound healer. Saudi Pharm J 2019; 28:101-106. [PMID: 31920436 PMCID: PMC6950955 DOI: 10.1016/j.jsps.2019.11.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Accepted: 11/29/2019] [Indexed: 12/20/2022] Open
Abstract
Plantago major L. which is a medicinal plant with important biological activities, commonly used as traditional medicine. Potential inhibitory activities of the aqueous extract and three isolated constituents calceorioside B (1), homoplantaginin (hispidulin-7-O-glucoside) (2) and plantamajoside (3) from the aerial parts of Plantago major subsp. major L. (Plantaginaceae) have been tested against hyaluronidase, collagenase, and elastase, which play critical roles in wound pathogenesis. Even though, the extract (27.04%), and among the isolated compounds, calceorioside B (41.16%) exerted significant inhibition against hyaluronidase enzyme, homoplantaginin and plantamajoside were found to be inactive. Similar results were obtained from collagenase enzyme inhibition test. The extract (21.92%) and calceorioside B (28.34%) also caused notable inhibition in this test. However, no remarkable inhibition was observed in the presence of elastase enzyme. The experimental data revealed that P. major subsp. major displayed remarkable inhibitory activity against hyaluronidase and collagenase enzymes. In vitro enzyme activity of P. major subsp. major is reported for the first time in the current study.
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Affiliation(s)
- Yasin Genc
- Department of Pharmacognosy, Faculty of Pharmacy, Hacettepe University, 06100 Sihhiye, Ankara, Turkey
| | | | - Iclal Saracoglu
- Department of Pharmacognosy, Faculty of Pharmacy, Hacettepe University, 06100 Sihhiye, Ankara, Turkey
| | - Esra Kupeli Akkol
- Department of Pharmacognosy, Faculty of Pharmacy, Gazi University, 06330 Etiler, Ankara, Turkey
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Genc Y, Harput US, Saracoglu I. Active compounds isolated from Plantago subulata L. via wound healing and antiinflammatory activity guided studies. JOURNAL OF ETHNOPHARMACOLOGY 2019; 241:112030. [PMID: 31220597 DOI: 10.1016/j.jep.2019.112030] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Revised: 04/25/2019] [Accepted: 06/12/2019] [Indexed: 06/09/2023]
Affiliation(s)
- Yasin Genc
- Department of Pharmacognosy, Faculty of Pharmacy, Hacettepe University, 06100, Sihhiye, Ankara, Turkey.
| | | | - Iclal Saracoglu
- Department of Pharmacognosy, Faculty of Pharmacy, Hacettepe University, 06100, Sihhiye, Ankara, Turkey
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Raval YS, Mohamed A, Zmuda HM, Patel R, Beyenal H. Hydrogen-Peroxide-Generating Electrochemical Scaffold Eradicates Methicillin-Resistant Staphylococcus aureus Biofilms. GLOBAL CHALLENGES (HOBOKEN, NJ) 2019; 3:1800101. [PMID: 31218078 PMCID: PMC6551415 DOI: 10.1002/gch2.201800101] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 02/11/2019] [Indexed: 06/09/2023]
Abstract
Increasing rates of chronic wound infections caused by antibiotic-resistant bacteria are a crisis in healthcare settings. Biofilms formed by bacterial communities in these wounds create a complex environment, enabling bacteria to persist, even with antibiotic treatment. Wound infections caused by methicillin-resistant Staphylococcus aureus (MRSA) are major causes of morbidity in clinical practice. There is a need for new therapeutic interventions not based on antibiotics. Hydrogen peroxide (H2O2) is a known antibacterial/antibiofilm agent, continuous delivery of which has been challenging. A conductive electrochemical scaffold (e-scaffold) is developed, which is composed of carbon fabric that electrochemically reduces dissolved oxygen into H2O2 when polarized at -0.6 VAg/AgCl, as a novel antibiofilm wound dressing material. In this study, the in vitro antibiofilm activity of the e-scaffold against MRSA is investigated. The developed e-scaffold efficiently eradicates MRSA biofilms, based on bacterial quantitation and ATP measurements. Moreover, imaging hinted at the possibility of cell-membrane damage as a mechanism of action. These results suggest that an H2O2-generating e-scaffold may be a novel platform for eliminating MRSA biofilms without using antibiotics and may be useful to treat chronic MRSA wound infections.
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Affiliation(s)
- Yash S. Raval
- Division of Clinical MicrobiologyMayo ClinicRochesterMN55905USA
| | - Abdelrhman Mohamed
- The Gene and Voiland School of Chemical Engineering and BioengineeringWashington State UniversityPullmanWA99164USA
| | - Hannah M. Zmuda
- Division of Clinical MicrobiologyMayo ClinicRochesterMN55905USA
- The Gene and Voiland School of Chemical Engineering and BioengineeringWashington State UniversityPullmanWA99164USA
| | - Robin Patel
- Division of Clinical MicrobiologyMayo ClinicRochesterMN55905USA
- Division of Infectious DiseasesMayo ClinicRochesterMN55905USA
| | - Haluk Beyenal
- The Gene and Voiland School of Chemical Engineering and BioengineeringWashington State UniversityPullmanWA99164USA
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Karahan HE, Wiraja C, Xu C, Wei J, Wang Y, Wang L, Liu F, Chen Y. Graphene Materials in Antimicrobial Nanomedicine: Current Status and Future Perspectives. Adv Healthc Mater 2018; 7:e1701406. [PMID: 29504283 DOI: 10.1002/adhm.201701406] [Citation(s) in RCA: 115] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Revised: 01/16/2018] [Indexed: 02/06/2023]
Abstract
Graphene materials (GMs), such as graphene, graphene oxide (GO), reduced GO (rGO), and graphene quantum dots (GQDs), are rapidly emerging as a new class of broad-spectrum antimicrobial agents. This report describes their state-of-the-art and potential future covering both fundamental aspects and biomedical applications. First, the current understanding of the antimicrobial mechanisms of GMs is illustrated, and the complex picture of underlying structure-property-activity relationships is sketched. Next, the different modes of utilization of antimicrobial GMs are explained, which include their use as colloidal dispersions, surface coatings, and photothermal/photodynamic therapy agents. Due to their practical relevance, the examples where GMs function as synergistic agents or release platforms for metal ions and/or antibiotic drugs are also discussed. Later, the applicability of GMs in the design of wound dressings, infection-protective coatings, and antibiotic-like formulations ("nanoantibiotics") is assessed. Notably, to support our assessments, the existing clinical applications of conventional carbon materials are also evaluated. Finally, the key hurdles of the field are highlighted, and several possible directions for future investigations are proposed. We hope that the roadmap provided here will encourage researchers to tackle remaining challenges toward clinical translation of promising research findings and help realize the potential of GMs in antimicrobial nanomedicine.
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Affiliation(s)
- Hüseyin Enis Karahan
- School of Chemical and Biomolecular Engineering The University of Sydney NSW 2006 Australia
- School of Chemical and Biomedical Engineering Nanyang Technological University Singapore 637459 Singapore
- Singapore Institute of Manufacturing Technology Singapore 638075 Singapore
| | - Christian Wiraja
- School of Chemical and Biomedical Engineering Nanyang Technological University Singapore 637459 Singapore
| | - Chenjie Xu
- School of Chemical and Biomedical Engineering Nanyang Technological University Singapore 637459 Singapore
- NTU‐Northwestern Institute of Nanomedicine Nanyang Technological University 50 Nanyang Avenue Singapore 639798 Singapore
| | - Jun Wei
- Singapore Institute of Manufacturing Technology Singapore 638075 Singapore
| | - Yilei Wang
- School of Chemistry & Chemical Engineering Tianjin University of Technology 391 Binshui, Xidao, Xiqing District Tianjin 300384 China
| | - Liang Wang
- School of Chemistry & Chemical Engineering Tianjin University of Technology 391 Binshui, Xidao, Xiqing District Tianjin 300384 China
| | - Fei Liu
- State Key Laboratory of Applied Microbiology Southern China Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application Guangdong Institute of Microbiology 100 Central Xianlie Road Guangzhou 510070 China
| | - Yuan Chen
- School of Chemical and Biomolecular Engineering The University of Sydney NSW 2006 Australia
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Thomason HA, Lovett JM, Spina CJ, Stephenson C, McBain AJ, Hardman MJ. Silver oxysalts promote cutaneous wound healing independent of infection. Wound Repair Regen 2018. [DOI: 10.1111/wrr.12627] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Helen A. Thomason
- Crawford Healthcare Ltd.; Knutsford Cheshire United Kingdom
- Faculty of Biology, Medicine and Health; The University of Manchester; Manchester United Kingdom
| | | | | | | | - Andrew J. McBain
- Faculty of Biology, Medicine and Health; The University of Manchester; Manchester United Kingdom
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14
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Bio-inspired redox-cycling antimicrobial film for sustained generation of reactive oxygen species. Biomaterials 2018; 162:109-122. [DOI: 10.1016/j.biomaterials.2017.12.027] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2017] [Revised: 12/20/2017] [Accepted: 12/31/2017] [Indexed: 02/07/2023]
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Kunkemoeller B, Kyriakides TR. Redox Signaling in Diabetic Wound Healing Regulates Extracellular Matrix Deposition. Antioxid Redox Signal 2017; 27:823-838. [PMID: 28699352 PMCID: PMC5647483 DOI: 10.1089/ars.2017.7263] [Citation(s) in RCA: 124] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
SIGNIFICANCE Impaired wound healing is a major complication of diabetes, and can lead to development of chronic foot ulcers in a significant number of patients. Despite the danger posed by poor healing, very few specific therapies exist, leaving patients at risk of hospitalization, amputation, and further decline in overall health. Recent Advances: Redox signaling is a key regulator of wound healing, especially through its influence on the extracellular matrix (ECM). Normal redox signaling is disrupted in diabetes leading to several pathological mechanisms that alter the balance between reactive oxygen species (ROS) generation and scavenging. Importantly, pathological oxidative stress can alter ECM structure and function. CRITICAL ISSUES There is limited understanding of the specific role of altered redox signaling in the diabetic wound, although there is evidence that ROS are involved in the underlying pathology. FUTURE DIRECTIONS Preclinical studies of antioxidant-based therapies for diabetic wound healing have yielded promising results. Redox-based therapeutics constitute a novel approach for the treatment of wounds in diabetes patients that deserve further investigation. Antioxid. Redox Signal. 27, 823-838.
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Affiliation(s)
- Britta Kunkemoeller
- 1 Department of Pathology, Yale University School of Medicine , New Haven, Connecticut
- 2 Interdepartmental Program in Vascular Biology and Therapeutics, Yale University School of Medicine , New Haven, Connecticut
| | - Themis R Kyriakides
- 1 Department of Pathology, Yale University School of Medicine , New Haven, Connecticut
- 2 Interdepartmental Program in Vascular Biology and Therapeutics, Yale University School of Medicine , New Haven, Connecticut
- 3 Department of Biomedical Engineering, Yale University , New Haven, Connecticut
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16
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Electrochemical monitoring of native catalase activity in skin using skin covered oxygen electrode. Biosens Bioelectron 2017; 93:9-13. [DOI: 10.1016/j.bios.2017.01.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Revised: 12/20/2016] [Accepted: 01/02/2017] [Indexed: 11/17/2022]
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Zhu G, Wang Q, Lu S, Niu Y. Hydrogen Peroxide: A Potential Wound Therapeutic Target? Med Princ Pract 2017; 26:301-308. [PMID: 28384636 PMCID: PMC5768111 DOI: 10.1159/000475501] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Accepted: 04/05/2017] [Indexed: 12/21/2022] Open
Abstract
Hydrogen peroxide (H2O2) is a topical antiseptic used in wound cleaning which kills pathogens through oxidation burst and local oxygen production. H2O2 has been reported to be a reactive biochemical molecule synthesized by various cells that influences biological behavior through multiple mechanisms: alterations of membrane potential, generation of new molecules, and changing intracellular redox balance, which results in activation or inactivation of different signaling transduction pathways. Contrary to the traditional viewpoint that H2O2 probably impairs tissue through its high oxidative property, a proper level of H2O2 is considered an important requirement for normal wound healing. Although the present clinical use of H2O2 is still limited to the elimination of microbial contamination and sometimes hemostasis, better understanding towards the sterilization ability and cell behavior regulatory function of H2O2 within wounds will enhance the potential to exogenously augment and manipulate healing.
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Affiliation(s)
| | | | | | - Yiwen Niu
- *Yiwen Niu, Department of Burns and Plastic Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai (China), E-Mail
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Strohal R, Assenheimer B, Augustin M, Hämmerle G, Läuchli S, Pundt B, Stern G, Storck M, Ulrich C. [Wound management with enzyme alginogels : Expert consensus]. Hautarzt 2016; 68:36-42. [PMID: 27680011 DOI: 10.1007/s00105-016-3878-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND The challenges of modern wound management, such as the treatment of chronic wounds and their phase-specific handling, are demanding and require optimally adapted therapeutic measures. The principles of moist wound care as well as an adequate debridement have priority here. To support these necessary measures, different options are available, e.g., a new product group operating across several wound phases. OBJECTIVE A new treatment principle in modern wound management based on an expert consensus is presented. METHODS On the basis of clinical experience reports and published evidence, the current and new principles of wound treatment were discussed in a panel of experts and formulated as a consensus statement. RESULTS Enzyme alginogels represent a combination of agents that allow phase-specific wound care. They exhibit autolytic, absorbent, and antimicrobial properties and simultaneously cover three components of wound management based on the TIME framework. Thus, according to the experts, they differ from other wound healing products and can be classified in a distinct product group. Clinical studies, as well as clinical experiences, provide evidence for the efficacy of enzyme alginogels. DISCUSSION According to the experts, the potential of enzyme alginogels used considering the principles of moist wound care, comprises the three-fold effect (continuous and significantly simplified debridement, maintaining a moist wound environment and antimicrobial effect without cytotoxicity), the ease of use, and the flexible application. In addition, the flexibility of the product class regarding frequency of application, duration of treatment and combinability with secondary dressings, are of economic benefit in the health care sector.
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Affiliation(s)
- R Strohal
- Abteilung für Dermatologie und Venerologie, LKH Feldkirch, Akademisches Lehrspital, Carinagasse 45-47, 6800, Feldkirch, Österreich.
| | - B Assenheimer
- Arbeitsgruppe Dekubitus/Wundpflege, Universitätsklinikum Tübingen, Geissweg 3, 72076, Tübingen, Deutschland.,Initiative Chronische Wunden e. V., Pölle 27/28, 06484, Quedlinburg, Deutschland
| | - M Augustin
- Universitätsklinikum Hamburg-Eppendorf, Martinistr. 52, 20246, Hamburg, Deutschland
| | - G Hämmerle
- Wundambulanz, LKH Bregenz, Carl-Pedenz-Str. 2, 6900, Bregenz, Österreich
| | - S Läuchli
- Dermatologische Klinik, Universitätsspital Zürich, Gloriastr. 31, 8091, Zürich, Schweiz
| | - B Pundt
- Gemeinschaftspraxis für Allgemeinmedizin, Bahnhofstr. 18, 26180, Rastede, Deutschland
| | - G Stern
- Ambulantes-Therapie-Zentrum ATZ Stern, Barloer Weg 127b, 46397, Bocholt, Deutschland
| | - M Storck
- Klinik für Gefäß- und Thoraxchirurgie, Städt. Klinikum Karlsruhe, Moltkestr. 90, 76133, Karlsruhe, Deutschland
| | - C Ulrich
- Klinik für Dermatologie, Venerologie und Allergologie, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Deutschland
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Husodo K, Kamal AF, Yusuf AA. Effect of povidone iodine and hydrogen peroxide on fracture healing: a histomorphometric study on rats. J Orthop Surg (Hong Kong) 2016; 24:245-9. [PMID: 27574271 DOI: 10.1177/1602400224] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
PURPOSE To evaluate the effect of povidone iodine and hydrogen peroxide on fracture healing in a rat model. METHODS The middle section of the right femur of 36 male Sprague Dawley rats was osteotomised with a saw. In the control group (n=9), the wound was irrigated with 100 ml 0.9% saline. In the 10% povidone iodine (n=9), 1% povidone iodine (n=9), and 3% hydrogen peroxide (n=9) groups, the wound was completely soaked with the respective solution for 2 minutes, and then irrigated with 100 ml saline. The osteotomy was fixed with an intramedullary Kirschner wire. Rats were euthanised at week 1, 2, and 5. In each femur, the percentage area of osseous, cartilaginous, and fibrous tissue in the callus was evaluated in 3 slides (one median and 2 paramedian). RESULTS The control group differed significantly to the other 3 groups (p=0.023 to p<0.001) in weeks 1, 2, and 5, except for the 1% povidone iodine group in terms of percentage of osseous (p=0.349) and fibrous (p=0.999) tissue. The healing process was similar in the 1% povidone iodine group and the control group, whereas healing was impaired in the 10% povidone iodine group and 3% hydrogen peroxide group, as indicated by the lower percentage of osseous tissue, higher percentage of fibrous tissue, and increased percentage of cartilaginous tissue between weeks 2 and 5 (delayed bone healing). CONCLUSION The 1% povidone iodine solution is recommended as the irrigation adjuvant in fracture surgery.
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Affiliation(s)
- K Husodo
- Department of Orthopaedic and Traumatology, Faculty of Medicine Universitas Indonesia / Cipto Mangunkusumo Hospital, Jakarta, Indonesia
| | - A F Kamal
- Department of Orthopaedic and Traumatology, Faculty of Medicine Universitas Indonesia / Cipto Mangunkusumo Hospital, Jakarta, Indonesia
| | - A A Yusuf
- Department of Histology, Faculty of Medicine Universitas Indonesia, Jakarta, Indonesia
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Enhanced Cutaneous Wound Healing In Vivo by Standardized Crude Extract of Poincianella pluviosa. PLoS One 2016; 11:e0149223. [PMID: 26938058 PMCID: PMC4777426 DOI: 10.1371/journal.pone.0149223] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2015] [Accepted: 01/05/2016] [Indexed: 01/01/2023] Open
Abstract
Wound healing is a complex process that involves several biological events, and a delay in this process may cause economic and social problems for the patient. The search continues for new alternative treatments to aid healing, including the use of herbal medicines. Members of the genus Caesalpinia are used in traditional medicine to treat wounds. The related species Poincianella pluviosa (DC.) L.P. Queiroz increases the cell viability of keratinocytes and fibroblasts and stimulates the proliferation of keratinocytes in vitro. The crude extract (CE) from bark of P. pluviosa was evaluated in the wound-healing process in vivo, to validate the traditional use and the in vitro activity. Standardized CE was incorporated into a gel and applied on cutaneous wounds (TCEG) and compared with the formulation without CE (Control) for 4, 7, 10, or 14 days of treatment. The effects of the CE on wound re-epithelialization; cell proliferation; permeation, using photoacoustic spectroscopy (PAS); and proteins, including vascular endothelial growth factor (VEGF), superoxide dismutase 2 (SOD-2) and cyclooxygenase 2 (COX-2) were evaluated. The TCEG stimulated the migration of keratinocytes at day 4 and proliferation on the following days, with a high concentration of cells in metaphase at 7 days. Type I collagen formed more rapidly in the TCEG. PAS showed that the CE had permeated through the skin. TCEG stimulated VEGF at day 4 and SOD-2 and COX-2 at day 7. The results suggest that the CE promoted the regulation of proteins and helped to accelerate the processes involved in healing, promoting early angiogenesis. This led to an increase in the re-epithelialized surface, with significant mitotic activity. Maturation of collagen fibers was also enhanced, which may affect the resistance of the extracellular matrix. PAS indicated a correlation between the rate of diffusion and biological events during the healing process. The CE from P. pluviosa appears promising as an aid in healing.
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Feng Y, Sanders AJ, Morgan LD, Harding KG, Jiang WG. Potential roles of suppressor of cytokine signaling in wound healing. Regen Med 2016; 11:193-209. [PMID: 26877242 DOI: 10.2217/rme.16.4] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Wound healing is a dynamic process comprising three overlapping, highly orchestrated stages known as inflammation, proliferation and re-epithelialization, and tissue remodeling. This complex process is regulated by numerous cytokines, with dysregulation of cytokine-induced signaling leading to impaired wound healing. Suppressor of cytokine signaling (SOCS) proteins are a family of eight intracellular proteins which may hold the potential to maintain homeostasis during wound healing through their negative feedback inhibition of cytokine signaling. To date, the roles of SOCS proteins in inflammation, autoimmunity and cancer have been comprehensively illustrated; however, only a limited number of studies focused on their role in wound healing. This review demonstrates the possible links between SOCS proteins and wound healing, and also highlights the potential importance of this family in a variety of other aspects of regenerative medicine.
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Affiliation(s)
- Yi Feng
- Cardiff China Medical Research Collaborative & Wound Healing Research Unit, Cardiff University School of Medicine, Cardiff University, Cardiff, UK
| | - Andrew J Sanders
- Cardiff China Medical Research Collaborative & Wound Healing Research Unit, Cardiff University School of Medicine, Cardiff University, Cardiff, UK
| | - Liam D Morgan
- Cardiff China Medical Research Collaborative & Wound Healing Research Unit, Cardiff University School of Medicine, Cardiff University, Cardiff, UK
| | - Keith G Harding
- Wound Healing Research Unit, Cardiff University School of Medicine, Cardiff University, Cardiff, UK
| | - Wen G Jiang
- Cardiff China Medical Research Collaborative & Wound Healing Research Unit, Cardiff University School of Medicine, Cardiff University, Cardiff, UK
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Early controlled release of peroxisome proliferator-activated receptor β/δ agonist GW501516 improves diabetic wound healing through redox modulation of wound microenvironment. J Control Release 2015; 197:138-47. [DOI: 10.1016/j.jconrel.2014.11.001] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2014] [Revised: 10/25/2014] [Accepted: 11/01/2014] [Indexed: 12/28/2022]
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Tsuruya M, Niwano Y, Nakamura K, Kanno T, Nakashima T, Egusa H, Sasaki K. Acceleration of proliferative response of mouse fibroblasts by short-time pretreatment with polyphenols. Appl Biochem Biotechnol 2014; 174:2223-35. [PMID: 25173673 DOI: 10.1007/s12010-014-1124-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2014] [Accepted: 07/23/2014] [Indexed: 10/24/2022]
Abstract
Under the hypothesis that photo-irradiated proanthocyanidin could accelerate wound healing through reactive oxygen species (ROS) formation, we examined the effect of proanthocyanidin on 3T3-L1 mouse fibroblasts with or without photo-irradiation. As a result, irrespective of presence or absence of photo-irradiation, only 1 min exposure of the cells to proanthocyanidin resulted in accelerated proliferation of the cells in a concentration-dependent manner. Similarly to proanthocyanidin, 1 min pretreatment with catechin, caffeic acid, and chlorogenic acid accelerated the proliferative response, but gallic acid, epicatechin gallate, epigallocatechin, and epigallocatechin gallate failed. If incorporated active ingredient such as proanthocyanidin for such a short time as 1 min accelerates the proliferation response, a bioassay was conducted by utilizing antioxidant potential of proanthocyanidin. That is, intracellular oxidation of 2',7'-dichlorodihydrofluorescin induced by H2O2 was significantly inhibited when the cells were pretreated with proanthocyanidin for 1 min, suggesting that incorporated proanthocyanidin into the cells exerted antioxidant effect. This was also supported by a liquid chromatography/mass spectrometry analysis in which incorporation of proanthocyanidin components such as catechin monomers and dimers into the cells within 1 min was confirmed. These results suggest that active polyphenolic compounds such as proanthocyanidin, catechin, caffeic acid, and chlorogenic acid incorporated into the cells in such a short time as 1 min could accelerate the proliferative response of the cells.
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Affiliation(s)
- Makoto Tsuruya
- Tohoku University Graduate School of Dentistry, 4-1 Seiryo-Machi, Aoba-ku, Sendai, 980-8575, Japan
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Li J, Ollague Sierra J, Zhu L, Tang L, Rahill K, El-Sabawi B, Liu-Mares W, Mertz PM, Davis SC. Effects of a topical aqueous oxygen emulsion on collagen deposition and angiogenesis in a porcine deep partial-thickness wound model. Exp Dermatol 2013; 22:674-6. [DOI: 10.1111/exd.12225] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/09/2013] [Indexed: 11/29/2022]
Affiliation(s)
- Jie Li
- Department of Dermatology and Cutaneous Surgery; University of Miami Miller School of Medicine; Miami; FL; USA
| | - Jose Ollague Sierra
- Department of Dermatology and Cutaneous Surgery; University of Miami Miller School of Medicine; Miami; FL; USA
| | - Linjian Zhu
- Department of Dermatology and Cutaneous Surgery; University of Miami Miller School of Medicine; Miami; FL; USA
| | - Ling Tang
- Department of Dermatology and Cutaneous Surgery; University of Miami Miller School of Medicine; Miami; FL; USA
| | - Kirah Rahill
- Department of Dermatology and Cutaneous Surgery; University of Miami Miller School of Medicine; Miami; FL; USA
| | - Bassim El-Sabawi
- Department of Dermatology and Cutaneous Surgery; University of Miami Miller School of Medicine; Miami; FL; USA
| | - Wen Liu-Mares
- Department of Dermatology and Cutaneous Surgery; University of Miami Miller School of Medicine; Miami; FL; USA
| | - Patricia M. Mertz
- Department of Dermatology and Cutaneous Surgery; University of Miami Miller School of Medicine; Miami; FL; USA
| | - Stephen C. Davis
- Department of Dermatology and Cutaneous Surgery; University of Miami Miller School of Medicine; Miami; FL; USA
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Heinlin J, Zimmermann JL, Zeman F, Bunk W, Isbary G, Landthaler M, Maisch T, Monetti R, Morfill G, Shimizu T, Steinbauer J, Stolz W, Karrer S. Randomized placebo-controlled human pilot study of cold atmospheric argon plasma on skin graft donor sites. Wound Repair Regen 2013; 21:800-7. [DOI: 10.1111/wrr.12078] [Citation(s) in RCA: 111] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2012] [Accepted: 06/02/2013] [Indexed: 11/28/2022]
Affiliation(s)
- Julia Heinlin
- Department of Dermatology; University Hospital Regensburg; Regensburg Germany
| | | | - Florian Zeman
- Center for Clinical Studies; University Hospital Regensburg; Regensburg Germany
| | - Wolfram Bunk
- Max Planck Institute for Extraterrestrial Physics; Garching Germany
| | - Georg Isbary
- Department of Dermatology; Hospital Munich-Schwabing; Munich Germany
| | - Michael Landthaler
- Department of Dermatology; University Hospital Regensburg; Regensburg Germany
| | - Tim Maisch
- Department of Dermatology; University Hospital Regensburg; Regensburg Germany
| | - Roberto Monetti
- Max Planck Institute for Extraterrestrial Physics; Garching Germany
| | - Gregor Morfill
- Max Planck Institute for Extraterrestrial Physics; Garching Germany
| | - Tetsuji Shimizu
- Max Planck Institute for Extraterrestrial Physics; Garching Germany
| | - Julia Steinbauer
- Department of Dermatology; University Hospital Regensburg; Regensburg Germany
| | - Wilhelm Stolz
- Department of Dermatology; Hospital Munich-Schwabing; Munich Germany
| | - Sigrid Karrer
- Department of Dermatology; University Hospital Regensburg; Regensburg Germany
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Effect of semisolid formulation of persea americana mill (avocado) oil on wound healing in rats. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2013; 2013:472382. [PMID: 23573130 PMCID: PMC3614059 DOI: 10.1155/2013/472382] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/22/2013] [Accepted: 02/13/2013] [Indexed: 01/08/2023]
Abstract
The aim of this study was to evaluate the wound-healing activity of a semisolid formulation of avocado oil, SSFAO 50%, or avocado oil in natura, on incisional and excisional cutaneous wound models in Wistar rats. An additional objective was to quantify the fatty acids present in avocado oil. On the 14th day, a significant increase was observed in percentage wound contraction and reepithelialization in the groups treated with 50% SSFAO or avocado oil compared to the petroleum jelly control. Anti-inflammatory activity, increase in density of collagen, and tensile strength were observed inSSFAO 50% or avocado oil groups, when compared to control groups. The analysis of the components of avocado oil by gas chromatography detected the majority presence of oleic fatty acid (47.20%), followed by palmitic (23.66%), linoleic (13.46%) docosadienoic (8.88%), palmitoleic (3.58%), linolenic (1.60%), eicosenoic (1.29%), and myristic acids (0.33%). Our results show that avocado oil is a rich source of oleic acid and contains essential fatty acids. When used in natura or in pharmaceutical formulations for topical use, avocado oil can promote increased collagen synthesis and decreased numbers of inflammatory cells during the wound-healing process and may thus be considered a new option for treating skin wounds.
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Aller MA, Blanco-Rivero J, Arias JI, Balfagon G, Arias J. The wound-healing response and upregulated embryonic mechanisms: brothers-in-arms forever. Exp Dermatol 2012; 21:497-503. [PMID: 22716244 DOI: 10.1111/j.1600-0625.2012.01525.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The cutaneous wound-healing reaction occurs in overlapping but inter-related phases, which ultimately result in fibrosis. The pathophysiological mechanisms involved in fibrotic diseases, including organ-related and even systemic diseases, such as systemic sclerosis, could represent the successive systemic upregulation of extraembryonic-like phenotypes, that is, amniotic and vitelline phenotypes. These two extraembryonic-like phenotypes act on the injured tissue to induce a process similar to gastrulation, which occurs during the early phases of embryo development. The amniotic-like phenotype plays a leading role in the development of neurogenic responses with significant hydroelectrolytic alterations that essentially represent the development of open microcirculation within the injured tissue. In turn, through the overlapping expression of a vitelline-like phenotype, a bone marrow-related response is produced. Interstitial infiltration by molecular and cellular mediators contributed by amniotic- and vitelline-like functions provides the functional and metabolic autonomy needed for inducing new tissue formation through mechanisms similar to those that act in gastrulation during the early phases of embryonic development. Thus, while a new tissue is formed, it quickly evolves into fibrotic tissue because of premature senescence. Mechanisms related to extraembryonic-like functions have been suggested in the following physiological and pathological processes: embryonic development; wound-healing reactions occurring during adult life; and senescence. The existence of this sort of basic self-organizing fractal-like functional pattern is an essential characteristic of our way of life.
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Affiliation(s)
- María-Angeles Aller
- Department of Surgery I, School of Medicine, Complutense University of Madrid, Madrid, Spain
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Effects of hydrogen peroxide on wound healing in mice in relation to oxidative damage. PLoS One 2012; 7:e49215. [PMID: 23152875 PMCID: PMC3496701 DOI: 10.1371/journal.pone.0049215] [Citation(s) in RCA: 118] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2012] [Accepted: 10/04/2012] [Indexed: 02/01/2023] Open
Abstract
It has been established that low concentrations of hydrogen peroxide (H2O2) are produced in wounds and is required for optimal healing. Yet at the same time, there is evidence that excessive oxidative damage is correlated with poor-healing wounds. In this paper, we seek to determine whether topical application of H2O2 can modulate wound healing and if its effects are related to oxidative damage. Using a C57BL/6 mice excision wound model, H2O2 was found to enhance angiogenesis and wound closure at 10 mM but retarded wound closure at 166 mM. The delay in closure was also associated with decreased connective tissue formation, increased MMP-8 and persistent neutrophil infiltration. Wounding was found to increase oxidative lipid damage, as measured by F2-isoprostanes, and nitrative protein damage, as measured by 3-nitrotyrosine. However H2O2 treatment did not significantly increase oxidative and nitrative damage even at concentrations that delay wound healing. Hence the detrimental effects of H2O2 may not involve oxidative damage to the target molecules studied.
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Arenbergerova M, Arenberger P, Bednar M, Kubat P, Mosinger J. Light-activated nanofibre textiles exert antibacterial effects in the setting of chronic wound healing. Exp Dermatol 2012; 21:619-24. [PMID: 22775997 DOI: 10.1111/j.1600-0625.2012.01536.x] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The maintenance of an aseptic environment for chronic wounds is one of the most challenging tasks in the wound-healing process. Furthermore, the emergence of antibiotic-resistant bacterial strains is on the rise, rendering conventional treatments less effective. A new antibacterial material consisting of a polyurethane Tecophilic(™) nanofibre textile (NT) that was prepared by electrospinning and doped by a tetraphenylporphyrin (TPP) photosensitizer activated by visible light was tested for use in wound beds and bandages. In vitro experiments were performed to assess the antibacterial activity of the textile against three bacterial strains. Furthermore, the new textile was tested in 162 patients with chronic leg ulcers. A complete inhibition of in vitro growth of the three tested bacterial strains was observed on the surface of NTs that had been illuminated with visible light and was clinically demonstrated in 89 patients with leg ulcers. The application of the textiles resulted in a 35% decrease in wound size, as assessed via computer-aided wound tracing. Wound-related pain, which was estimated using a visual analogue scale, was reduced by 71%. The results of this trial reveal that the photoinactivation of bacteria through the photosensitized generation of short-lived, highly reactive singlet oxygen O(2) ((1) Δ(g) ) results in relatively superficial antibacterial effects in comparison with standard antiseptic treatment options. Thus, such treatment does not interfere with the normal healing process. This method therefore represents a suitable alternative to the use of topical antibiotics and antiseptics and demonstrates potentially broad applications in medicine.
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Affiliation(s)
- Monika Arenbergerova
- Department of Dermatology, Third Faculty of Medicine, Charles University in Prague, Prague, Czech Republic.
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Ud-Din S, Perry D, Giddings P, Colthurst J, Zaman K, Cotton S, Whiteside S, Morris J, Bayat A. Electrical stimulation increases blood flow and haemoglobin levels in acute cutaneous wounds without affecting wound closure time: evidenced by non-invasive assessment of temporal biopsy wounds in human volunteers. Exp Dermatol 2012; 21:758-64. [DOI: 10.1111/exd.12005] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Sara Ud-Din
- Plastic & Reconstructive Surgery Research, Manchester Institute of Biotechnology; University of Manchester; Manchester UK
- Faculty of Medical and Human Sciences; University Hospital of South Manchester NHS Foundation Trust; Institute of Inflammation and Repair, University of Manchester, Manchester Academic Health Science Centre; Manchester UK
| | - Donna Perry
- Plastic & Reconstructive Surgery Research, Manchester Institute of Biotechnology; University of Manchester; Manchester UK
- Faculty of Medical and Human Sciences; University Hospital of South Manchester NHS Foundation Trust; Institute of Inflammation and Repair, University of Manchester, Manchester Academic Health Science Centre; Manchester UK
| | | | | | - Karen Zaman
- Plastic & Reconstructive Surgery Research, Manchester Institute of Biotechnology; University of Manchester; Manchester UK
- Faculty of Medical and Human Sciences; University Hospital of South Manchester NHS Foundation Trust; Institute of Inflammation and Repair, University of Manchester, Manchester Academic Health Science Centre; Manchester UK
| | | | - Sigrid Whiteside
- Faculty of Medical and Human Sciences; University Hospital of South Manchester NHS Foundation Trust; Institute of Inflammation and Repair, University of Manchester, Manchester Academic Health Science Centre; Manchester UK
- Medical Statistics; University Hospital South Manchester NHS Foundation Trust; Manchester UK
| | - Julie Morris
- Faculty of Medical and Human Sciences; University Hospital of South Manchester NHS Foundation Trust; Institute of Inflammation and Repair, University of Manchester, Manchester Academic Health Science Centre; Manchester UK
- Medical Statistics; University Hospital South Manchester NHS Foundation Trust; Manchester UK
| | - Ardeshir Bayat
- Plastic & Reconstructive Surgery Research, Manchester Institute of Biotechnology; University of Manchester; Manchester UK
- Faculty of Medical and Human Sciences; University Hospital of South Manchester NHS Foundation Trust; Institute of Inflammation and Repair, University of Manchester, Manchester Academic Health Science Centre; Manchester UK
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Loo AEK, Halliwell B. Effects of hydrogen peroxide in a keratinocyte-fibroblast co-culture model of wound healing. Biochem Biophys Res Commun 2012; 423:253-8. [PMID: 22634311 DOI: 10.1016/j.bbrc.2012.05.100] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2012] [Accepted: 05/17/2012] [Indexed: 10/28/2022]
Abstract
Recently, there has been renewed interest in the role of reactive oxygen species (ROS), especially H(2)O(2), in wound healing. We previously showed that H(2)O(2) stimulates healing in a keratinocyte scratch wound model. In this paper, we used a more complex and physiologically relevant model that involves co-culturing primary keratinocytes and fibroblasts. We found that the two main cell types within the skin have different sensitivities to H(2)O(2) and to the widely used "antioxidant"N-acetyl-l-cysteine (NAC). Keratinocytes were very resistant to the toxicity of H(2)O(2) (250 and 500 μM) or NAC (5 mM). However, the viability of fibroblasts was decreased by both compounds. Using the co-culture model, we also found that H(2)O(2) increases re-epithelialization while NAC retards it. Our data further illustrate the possible role of ROS in wound healing and the co-culture model should be useful for screening agents that may influence the wound healing process.
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Affiliation(s)
- Alvin Eng Kiat Loo
- Graduate School for Integrative Sciences & Engineering, National University of Singapore, Singapore 119077, Singapore
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Abstract
Extracellular signaling molecules have crucial roles in development and homeostasis, and their incorrect deployment can lead to developmental defects and disease states. Signaling molecules are released from sending cells, travel to target cells, and act over length scales of several orders of magnitude, from morphogen-mediated patterning of small developmental fields to hormonal signaling throughout the organism. We discuss how signals are modified and assembled for transport, which routes they take to reach their targets, and how their range is affected by mobility and stability.
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Affiliation(s)
- Patrick Müller
- Department of Molecular and Cellular Biology, Harvard Stem Cell Institute, Broad Institute, Center for Brain Science, FAS Center for Systems Biology, Harvard University, 16 Divinity Avenue, Cambridge, MA 02138, USA.
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Loo AEK, Ho R, Halliwell B. Mechanism of hydrogen peroxide-induced keratinocyte migration in a scratch-wound model. Free Radic Biol Med 2011; 51:884-92. [PMID: 21699973 DOI: 10.1016/j.freeradbiomed.2011.06.001] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2011] [Revised: 05/20/2011] [Accepted: 06/01/2011] [Indexed: 12/18/2022]
Abstract
Recent studies have shown that low concentrations of H(2)O(2) are produced endogenously by nonphagocytes after wounding. We observed that H(2)O(2) at such concentrations can stimulate proliferation as well as migration of keratinocytes in a scratch-wound assay. Both wounding and H(2)O(2) can induce phosphorylation of ERK1/2 via EGFR, but the activation of ERK1/2 by H(2)O(2) is more sustained and can last more than 8h. Sustained ERK1/2 activation is required for the increased proliferation and migration induced by H(2)O(2). The p38 MAPK was also found to be phosphorylated upon treatment with H(2)O(2) but it was not required for H(2)O(2)-induced migration or proliferation. Furthermore, it was observed that there is a cross talk between the ERK1/2 and the p38 pathways whereby inhibition of either pathway can lead to activation of the other. As a result, the motogenic effects of H(2)O(2) were further enhanced when p38 was inhibited. Our data are consistent with the view that H(2)O(2) may play an important signaling role in wound healing.
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Affiliation(s)
- Alvin Eng Kiat Loo
- Graduate School for Integrative Sciences & Engineering, National University of Singapore, Singapore 119077
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