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da Rocha RB, Araújo DD, Machado FDS, Cardoso VS, Araújo AJ, Marinho-Filho JDB. The role of light emitting diode in wound healing: A systematic review of experimental studies. Cell Biochem Funct 2024; 42:e4086. [PMID: 38956862 DOI: 10.1002/cbf.4086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Revised: 05/17/2024] [Accepted: 06/24/2024] [Indexed: 07/04/2024]
Abstract
Wounds represent a growing global issue demanding increased attention. To expedite wound healing, technologies are under development, and light emitting diode (LED) devices of varying wavelengths are being explored for their stimulating influence on the healing process. This article presents a systematic literature review aiming to compile, organize, and analyze the impacts of LED devices on wound healing. This review is registered on the PROSPERO platform [CRD42023403870]. Two blinded authors conducted searches in the Pubmed, Web of Science, Scopus, Embase, and ScienceDirect databases. In vitro and in vivo experimental studies assessing LED utilization in the wound healing process were included. The search yielded 1010 studies, of which 27 were included in the review. It was identified that LED stimulates different healing pathways, promoting enhanced cell proliferation and migration, angiogenesis stimulation, increased collagen deposition, and modulation of the inflammatory response. Thus, it can be concluded that the LED stimulates cellular and molecular processes contingent on the utilized parameters. The effects depend on the standards used. Cell migration and proliferation were better influenced by green and red LED. The extracellular matrix components and angiogenesis were regulated by all wavelengths and the modulation of inflammation was mediated by green, red, and infrared LEDs.
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Affiliation(s)
- Rebeca Barbosa da Rocha
- Laboratório de Cultura de Células do Delta (LCCDelta), Universidade Federal do Delta do Parnaíba-UFDPar, Parnaíba, Piauí, Brazil
| | - Dakson Douglas Araújo
- Laboratório de Cultura de Células do Delta (LCCDelta), Universidade Federal do Delta do Parnaíba-UFDPar, Parnaíba, Piauí, Brazil
| | - Fabrício Dos Santos Machado
- Laboratório de Cultura de Células do Delta (LCCDelta), Universidade Federal do Delta do Parnaíba-UFDPar, Parnaíba, Piauí, Brazil
| | - Vinicius Saura Cardoso
- Laboratório de Estudos e Pesquisas em Sinais Biológicos (Biosignal), Universidade Federal do Delta do Parnaíba-UFDPar, Parnaíba, Piauí, Brazil
| | - Ana Jérsia Araújo
- Laboratório de Cultura de Células do Delta (LCCDelta), Universidade Federal do Delta do Parnaíba-UFDPar, Parnaíba, Piauí, Brazil
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Wiegand C, Dirksen A, Tittelbach J. Treatment with a red-laser-based wound therapy device exerts positive effects in models of delayed keratinocyte and fibroblast wound healing. PHOTODERMATOLOGY, PHOTOIMMUNOLOGY & PHOTOMEDICINE 2024; 40:e12926. [PMID: 37957888 DOI: 10.1111/phpp.12926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 09/21/2023] [Accepted: 10/31/2023] [Indexed: 11/15/2023]
Abstract
BACKGROUND Light therapy is widely used in medicine. Specifically, photobiomodulation has been shown to exert beneficial effects in wound healing disorders, which present a major challenge in health care. The study's aim was providing information on the effect of a novel, red-laser-based wound therapy device (WTD) on keratinocytes and fibroblasts during wound healing under optimal and non-optimal conditions. METHODS The scratch wound assay was employed as a wound healing model for mechanical damage with readjustment of specific cell milieus, explicitly chronic TH1 inflammation and TH2-dominant conditions. Furthermore, gene expression analysis of pro-inflammatory cytokines (IL1A, IL6, CXCL8), growth factors (TGFB1, PDGFC), transcription factors (NFKB1, TP53) and heat shock proteins (HSP90AA1, HSPA1A, HSPD1) as well as desmogleins (DSG1, DSG3) in keratinocytes and collagen (COL1A1, COL3A1) in fibroblasts was performed after WTD treatment. RESULTS It was shown that WTD treatment is biocompatible and supports scratch wound closure under non-optimal conditions. A distinct enhancement of desmoglein and collagen gene expression as well as induction of early growth factor gene expression was observed under chronic inflammatory conditions. Moreover, WTD increased HSPD1 transcript levels in keratinocytes and augmented collagen expression in fibroblasts during wound healing under TH2 conditions. WTD treatment also alleviated the inflammatory response in keratinocytes and induced early growth factor gene expression in fibroblasts under physiological conditions. CONCLUSION Positive effects described for wound treatment with WTD could be replicated in vitro and seem to be to be conferred by a direct influence on cellular processes taking place in keratinocytes and fibroblasts during wound healing.
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Affiliation(s)
- Cornelia Wiegand
- Department of Dermatology, Jena University Hospital, Friedrich Schiller University, Jena, Germany
| | | | - Jörg Tittelbach
- Department of Dermatology, Jena University Hospital, Friedrich Schiller University, Jena, Germany
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Baracho VDS, Silva NCD, Peixoto MFD, Sampaio KH, Cordeiro CAF, Lucas TC. LED phototherapy in tissue repair of chronic wounds in people with diabetes: a systematic review. Rev Gaucha Enferm 2023; 44:e20220274. [PMID: 37585961 DOI: 10.1590/1983-1447.2023.20220274.en] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Accepted: 01/20/2023] [Indexed: 08/18/2023] Open
Abstract
OBJECTIVE To identify scientific evidence of LED photobiomodulation in the treatment and tissue repair of chronic wounds in people with Diabetes Mellitus, types I and II. METHOD Systematic review conducted from September/2021 to April/2022 in PubMed, LILACS, SCIELO, COHRANE, EMBASE and Web of Science. Randomized and observational clinical trials using LED in wound healing in diabetics, published between 2015 and 2022 were included. Data were descriptively analyzed with title/abstract screening, full text articles reading and definitive selection after meeting the predefined inclusion and exclusion criteria. RESULTS Fromthe total of 840 references, eight articles were selected, that evaluated the effectiveness of LED phototherapy in wounds of diabetic patients. CONCLUSION LED light proved to be beneficial in tissue repair, with increased production in collagen and fibroblasts, angiogenesis, reduction of inflammation and, consequently, a decrease in lesion size.
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Affiliation(s)
- Valéria da Silva Baracho
- Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Programa de Pós-Graduação em Ciências da Saúde. Diamantina, Minas Gerais, Brasil
| | - Natália Cristina da Silva
- Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Programa de Pós-Graduação em Ciências da Saúde. Diamantina, Minas Gerais, Brasil
| | - Marco Fabrício Dias Peixoto
- Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Programa de Pós-Graduação em Ciências da Saúde, Departamento de Educação Física. Diamantina, Minas Gerais, Brasil
| | - Kinulpe Honorato Sampaio
- Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Programa de Pós-Graduação em Ciências da Saúde, Departamento de Medicina. Diamantina, Minas Gerais, Brasil
| | - Cláudia Aparecida Fernandes Cordeiro
- Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Programa de Pós-Graduação em Ciências da Saúde. Diamantina, Minas Gerais, Brasil
| | - Thabata Coaglio Lucas
- Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), Programa de Pós-Graduação em Ciências da Saúde, Departamento de Enfermagem. Diamantina, Minas Gerais , Brasil
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Simões TMS, de Alencar Fernandes Neto J, Nonaka CFW, de Vasconcelos Catão MHC. Effects of photobiomodulation therapy with red LED on inflammatory cells during the healing of skin burns. Lasers Med Sci 2022; 37:2817-2822. [PMID: 35237887 DOI: 10.1007/s10103-022-03537-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 02/23/2022] [Indexed: 11/25/2022]
Abstract
The aim of this study was to evaluate the effects of red light emitting diode (LED) photobiomodulation therapy protocol on inflammatory cells during the healing of third-degree skin burns. Fifty Wistar rats were randomly divided into control group (CTRL) (n = 25) and red group (RED) (n = 25), with subgroups (n = 5) for each time of euthanasia (7, 14, 21, 28, and 32 days). Treatment animals were daily irradiated (630 nm ± 10 nm, 300 mW, 9 J/cm2 per point, 30 s, continuous emission mode) at the 4 angles of the wound (total: 36 J/cm2). After specimen removal, histological sections were stained with hematoxylin and eosin for quantitative analysis of the inflammatory infiltrate (neutrophils and lymphocytes) under light microscopy. Greater number of inflammatory cells was observed in irradiated groups when compared to CTRL at 7, 14, 21, and 28 days, but with statistically significant difference only at 14 days (p = 0.02). At 32 days, higher inflammatory cell value was observed in CTRL when compared to RED, but with no statistically significant difference (p = 0.91). The results suggest that red LED, according to the protocol used, modulates the number of inflammatory cells in the early stages of the healing of third-degree skin burns. Nevertheless, this low-intensity light therapy may not, be efficient in reducing the number of neutrophils and lymphocytes in advanced stages of the repair process of skin burns. Further studies with other therapy protocols are needed to assess the effects of this type of light on the inflammatory response of skin burns.
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The role of UV and blue light in photo-eradication of microorganisms. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY 2021. [DOI: 10.1016/j.jpap.2021.100064] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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Wiegand C, Hipler UC, Elsner P, Tittelbach J. Keratinocyte and Fibroblast Wound Healing In Vitro Is Repressed by Non-Optimal Conditions but the Reparative Potential Can Be Improved by Water-Filtered Infrared A. Biomedicines 2021; 9:biomedicines9121802. [PMID: 34944618 PMCID: PMC8698951 DOI: 10.3390/biomedicines9121802] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 11/19/2021] [Accepted: 11/26/2021] [Indexed: 11/16/2022] Open
Abstract
It is a general goal to improve wound healing, especially of chronic wounds. As light therapy has gained increasing attention, the positive influence on healing progression of water-filtered infrared A (wIRA), a special form of thermal radiation, has been investigated and compared to the detrimental effects of UV-B irradiation on wound closure in vitro. Models of keratinocyte and fibroblast scratches help to elucidate effects on epithelial and dermal healing. This study further used the simulation of non-optimal settings such as S. aureus infection, chronic inflammation, and anti-inflammatory conditions to determine how these affect scratch wound progression and whether wIRA treatment can improve healing. Gene expression analysis for cytokines (IL1A, IL6, CXCL8), growth (TGFB1, PDGFC) and transcription factors (NFKB1, TP53), heat shock proteins (HSP90AA1, HSPA1A, HSPD1), keratinocyte desmogleins (DSG1, DSG3), and fibroblast collagen (COL1A1, COL3A1) was performed. Keratinocyte and fibroblast wound healing under non-optimal conditions was found to be distinctly reduced in vitro. wIRA treatment could counteract the inflammatory response in infected keratinocytes as well as under chronic inflammatory conditions by decreasing pro-inflammatory cytokine gene expression and improve wound healing. In contrast, in the anti-inflammatory setting, wIRA radiation could re-initiate the acute inflammatory response necessary after injury to stimulate the regenerative processes and advance scratch closure.
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Mármora BC, Brochado FT, Schmidt TR, Santos LG, Araújo AAD, Medeiros CACXD, Ribeiro SB, Martins MAT, Pilar EFS, Wagner VP, Martins MD. Defocused high-power diode laser accelerates skin repair in a murine model through REDOX state modulation and reepithelization and collagen deposition stimulation. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2021; 225:112332. [PMID: 34653929 DOI: 10.1016/j.jphotobiol.2021.112332] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 09/08/2021] [Accepted: 10/07/2021] [Indexed: 12/15/2022]
Abstract
Skin wounds represent a burden in healthcare. Our aim was to investigate for the first time the effects of defocused high-power diode laser (DHPL) on skin healing in an animal experimental model and compare it with gold standard low-level laser therapy. Male Wistar rats were divided into 5 groups: Negative control; Sham; 0.1 W laser (L0.1 W); DHPL Dual 1 W (DHPLD1 W); and DHPL Dual 2 W (DHPLD2 W). Rats were euthanized on days 3, 5, 10, 14 and 21. Clinical, morphological, PicroSirus, oxidative stress (MDA, SOD and GSH) and cytokines (IL-1β, IL-10 and TNF-α) analyses were performed. A faster clinical repair was observed in all laser groups at D10 and D14. DHPLD1 W exhibited lower inflammation and better reepithelization compared to other groups at D10. DHPL protocols modulated oxidative stress by decreasing MDA and increasing SOD and GSH. Collagen maturation was triggered by all protocols tested and L0.1 W modulated cytokines release (IL-1β and TNF-α) at D3. In conclusion, DHPL, especially DHPL1 W protocol, accelerated skin healing by triggering reepithelization and collagen maturation and modulating inflammation and oxidative stress.
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Affiliation(s)
- Belkiss Câmara Mármora
- Department of Pathology, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Fernanda Thomé Brochado
- Department of Pathology, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Tuany Rafaelli Schmidt
- Department of Pathology, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Lucas Gonçalves Santos
- Department of Pathology, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Aurigena Antunes de Araújo
- Post-Graduation Program Oral Science, Post-Graduation Program in Pharmaceutical Science, Department of Biophysics and Pharmacology, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Caroline Addison Carvalho Xavier de Medeiros
- Department of Biophysics and Pharmacology, Postgraduate Program in Biological Science and Rede Nordeste de Biotecnologia, Renorbio, Federal University of Rio Grande Norte, Natal, Brazil
| | - Susana Barbosa Ribeiro
- Postgraduate Program in Biological Science and Rede Nordeste de Biotecnologia, Renorbio, Federal University of Rio Grande Norte, Natal, Brazil
| | - Marco Antonio Trevizani Martins
- Department of Pathology, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil; Department of Oral Medicine, Hospital de Clínicas de Porto Alegre (HCPA/UFRGS), Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Emily Ferreira Salles Pilar
- Experimental Pathology Unit, Clinics Hospital of Porto Alegre, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Vivian Petersen Wagner
- Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
| | - Manoela Domingues Martins
- Department of Pathology, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil; Department of Oral Medicine, Hospital de Clínicas de Porto Alegre (HCPA/UFRGS), Federal University of Rio Grande do Sul, Porto Alegre, Brazil; Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil.
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Palmieri B, Vadalà M, Laurino C. Electromedical devices in wound healing management: a narrative review. J Wound Care 2020; 29:408-418. [PMID: 32654604 DOI: 10.12968/jowc.2020.29.7.408] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Wound healing is the sum of physiological sequential steps, leading to skin restoration. However, in some conditions, such as diabetes, pressure ulcers (PU) and venous legs ulcers (VLU), healing is a major challenge and requires multiple strategies. In this context, some electromedical devices may accelerate and/or support wound healing, modulating the inflammatory, proliferation (granulation) and tissue-remodelling phases. This review describes some helpful electromedical devices including: ultrasonic-assisted wound debridement; electrotherapy; combined ultrasound and electric field stimulation; low-frequency pulsed electromagnetic fields; phototherapy (for example, laser therapy and light-emitting diode (LED) therapy); biophotonic therapies, and pressure therapies (for example, negative pressure wound therapy, and high pressure and intermittent pneumatic compression) The review focuses on the evidence-based medicine and adequate clinical trial design in relation to these devices.
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Affiliation(s)
- Beniamino Palmieri
- Department of General Surgery and Surgical Specialties, University of Modena and Reggio Emilia Medical School, Surgical Clinic, Via del Pozzo, 71, 41124, Modena, Italy.,Second Opinion Medical Network, Via Ciro Bisi, 125, Modena, Italy
| | - Maria Vadalà
- Department of General Surgery and Surgical Specialties, University of Modena and Reggio Emilia Medical School, Surgical Clinic, Via del Pozzo, 71, 41124, Modena, Italy.,Second Opinion Medical Network, Via Ciro Bisi, 125, Modena, Italy
| | - Carmen Laurino
- Department of General Surgery and Surgical Specialties, University of Modena and Reggio Emilia Medical School, Surgical Clinic, Via del Pozzo, 71, 41124, Modena, Italy.,Second Opinion Medical Network, Via Ciro Bisi, 125, Modena, Italy
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Masson‐Meyers DS, Andrade TAM, Caetano GF, Guimaraes FR, Leite MN, Leite SN, Frade MAC. Experimental models and methods for cutaneous wound healing assessment. Int J Exp Pathol 2020; 101:21-37. [PMID: 32227524 PMCID: PMC7306904 DOI: 10.1111/iep.12346] [Citation(s) in RCA: 154] [Impact Index Per Article: 38.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 01/20/2020] [Accepted: 02/06/2020] [Indexed: 12/15/2022] Open
Abstract
Wound healing studies are intricate, mainly because of the multifaceted nature of the wound environment and the complexity of the healing process, which integrates a variety of cells and repair phases, including inflammation, proliferation, reepithelialization and remodelling. There are a variety of possible preclinical models, such as in mice, rabbits and pigs, which can be used to mimic acute or impaired for example, diabetic and nutrition-related wounds. These can be induced by many different techniques, with excision or incision being the most common. After determining a suitable model for a study, investigators need to select appropriate and reproducible methods that will allow the monitoring of the wound progression over time. The assessment can be performed by non-invasive protocols such as wound tracing, photographic documentation (including image analysis), biophysical techniques and/or by invasive protocols that will require wound biopsies. In this article, we provide an overview of some of the most often needed and used: (a) preclinical/animal models including incisional, excisional, burn and impaired wounds; (b) methods to evaluate the healing progression such as wound healing rate, wound analysis by image, biophysical assessment, histopathological, immunological and biochemical assays. The aim is to help researchers during the design and execution of their wound healing studies.
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Affiliation(s)
- Daniela S. Masson‐Meyers
- Marquette University School of DentistryMilwaukeeWisconsinUSA
- Division of DermatologyDepartment of Internal MedicineRibeirao Preto Medical SchoolUniversity of Sao PauloRibeirao PretoSao PauloBrazil
| | - Thiago A. M. Andrade
- Division of DermatologyDepartment of Internal MedicineRibeirao Preto Medical SchoolUniversity of Sao PauloRibeirao PretoSao PauloBrazil
- Graduate Program of Biomedical SciencesUniversity Center of Herminio Ometto Foundation (FHO)ArarasSao PauloBrazil
| | - Guilherme F. Caetano
- Division of DermatologyDepartment of Internal MedicineRibeirao Preto Medical SchoolUniversity of Sao PauloRibeirao PretoSao PauloBrazil
- Graduate Program of Biomedical SciencesUniversity Center of Herminio Ometto Foundation (FHO)ArarasSao PauloBrazil
| | - Francielle R. Guimaraes
- Division of DermatologyDepartment of Internal MedicineRibeirao Preto Medical SchoolUniversity of Sao PauloRibeirao PretoSao PauloBrazil
- University Center of Associated Schools of Education (UNIFAE)São João da Boa VistaSão PauloBrazil
| | - Marcel N. Leite
- Division of DermatologyDepartment of Internal MedicineRibeirao Preto Medical SchoolUniversity of Sao PauloRibeirao PretoSao PauloBrazil
| | - Saulo N. Leite
- Division of DermatologyDepartment of Internal MedicineRibeirao Preto Medical SchoolUniversity of Sao PauloRibeirao PretoSao PauloBrazil
- University Center of the Educational Foundation Guaxupe (UNIFEG)GuaxupeMinas GeraisBrazil
| | - Marco Andrey C. Frade
- Division of DermatologyDepartment of Internal MedicineRibeirao Preto Medical SchoolUniversity of Sao PauloRibeirao PretoSao PauloBrazil
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Hu X, Lian W, Zhang X, Yang X, Jiang J, Li M. Efficacy of negative pressure wound therapy using vacuum-assisted closure combined with photon therapy for management of diabetic foot ulcers. Ther Clin Risk Manag 2018; 14:2113-2118. [PMID: 30498354 PMCID: PMC6207409 DOI: 10.2147/tcrm.s164161] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Diabetes mellitus, one of the most prevalent chronic metabolic diseases, causes many complications. Among the complications, one of the most common chronic complications is diabetic foot ulcers (DFUs). OBJECTIVE This study was conducted to investigate the efficacy of negative pressure wound therapy using vacuum-assisted closure (VAC) combined with photon therapy for the management of DFUs. PATIENTS AND METHODS The study included a total of 69 patients with DFUs during the period from January 2014 to December 2015. All patients were diagnosed with DFUs with Wagner's stage 2 or 3 and were divided into two groups - the VAC group in which patients received only VAC and the combined group in which patients received both VAC and photon therapy. Data on duration of the treatment, pre- and postoperative wound surface areas, dressing changing times, pain conditions assessed using visual analog scale scores, recurrence rate and amputation rate were collected. RESULTS Among all patients, 35 patients were divided into the VAC group and 34 patients into the combined group. Areas of foot ulcers for all patients ranged from 5 to 100 cm2. The treatment duration, dressing changing times and the peak value of visual analog scale scores were all significantly lower in the combined group compared with the VAC group (P < 0.05). However, the reduced area for wound surface showed no significant difference between the two groups. Both recurrence and amputation rates showed no significant difference between the two groups of patients. CONCLUSION Both VAC and VAC combined with photon therapy were effective and safe in the treatment of DFUs, while the combined therapy might have accelerated wound healing, but did not influence the long-term efficacy.
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Affiliation(s)
- Xiaoxiao Hu
- Department of interventional Vascular Surgery, The Tenth People's Hospital affiliated to Tongji University, Tongji University School of Medicine, shanghai, 200072, China,
| | - Weishuai Lian
- Department of interventional Vascular Surgery, The Tenth People's Hospital affiliated to Tongji University, Tongji University School of Medicine, shanghai, 200072, China,
| | - Xiaojun Zhang
- Department of interventional Catheter, The Tenth People's Hospital affiliated to Tongji University, Shanghai, 200072, China
| | - Xue Yang
- Department of Anesthesiology, eastern hospital affiliated to Tongji University, Shanghai, 200120, China
| | - Jinxia Jiang
- Department of Emergency, The Tenth People's Hospital affiliated to Tongji University, Shanghai, 200072, China,
| | - Maoquan Li
- Department of interventional Vascular Surgery, The Tenth People's Hospital affiliated to Tongji University, Tongji University School of Medicine, shanghai, 200072, China,
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Tandon B, Magaz A, Balint R, Blaker JJ, Cartmell SH. Electroactive biomaterials: Vehicles for controlled delivery of therapeutic agents for drug delivery and tissue regeneration. Adv Drug Deliv Rev 2018; 129:148-168. [PMID: 29262296 DOI: 10.1016/j.addr.2017.12.012] [Citation(s) in RCA: 82] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Revised: 11/24/2017] [Accepted: 12/16/2017] [Indexed: 01/09/2023]
Abstract
Electrical stimulation for delivery of biochemical agents such as genes, proteins and RNA molecules amongst others, holds great potential for controlled therapeutic delivery and in promoting tissue regeneration. Electroactive biomaterials have the capability of delivering these agents in a localized, controlled, responsive and efficient manner. These systems have also been combined for the delivery of both physical and biochemical cues and can be programmed to achieve enhanced effects on healing by establishing control over the microenvironment. This review focuses on current state-of-the-art research in electroactive-based materials towards the delivery of drugs and other therapeutic signalling agents for wound care treatment. Future directions and current challenges for developing effective electroactive approach based therapies for wound care are discussed.
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Effect of non-coherent infrared light (LED, λ945 ± 20 nm) on bone repair in diabetic rats—morphometric and spectral analyses. Lasers Med Sci 2017; 32:1041-1049. [DOI: 10.1007/s10103-017-2205-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Accepted: 03/29/2017] [Indexed: 11/25/2022]
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Blue light does not impair wound healing in vitro. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2016; 160:53-60. [DOI: 10.1016/j.jphotobiol.2016.04.007] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Revised: 04/04/2016] [Accepted: 04/06/2016] [Indexed: 11/19/2022]
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The dark art of light measurement: accurate radiometry for low-level light therapy. Lasers Med Sci 2016; 31:789-809. [PMID: 26964800 PMCID: PMC4851696 DOI: 10.1007/s10103-016-1914-y] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Accepted: 02/16/2016] [Indexed: 12/15/2022]
Abstract
Lasers and light-emitting diodes are used for a range of biomedical applications with many studies reporting their beneficial effects. However, three main concerns exist regarding much of the low-level light therapy (LLLT) or photobiomodulation literature; (1) incomplete, inaccurate and unverified irradiation parameters, (2) miscalculation of ‘dose,’ and (3) the misuse of appropriate light property terminology. The aim of this systematic review was to assess where, and to what extent, these inadequacies exist and to provide an overview of ‘best practice’ in light measurement methods and importance of correct light measurement. A review of recent relevant literature was performed in PubMed using the terms LLLT and photobiomodulation (March 2014–March 2015) to investigate the contemporary information available in LLLT and photobiomodulation literature in terms of reporting light properties and irradiation parameters. A total of 74 articles formed the basis of this systematic review. Although most articles reported beneficial effects following LLLT, the majority contained no information in terms of how light was measured (73 %) and relied on manufacturer-stated values. For all papers reviewed, missing information for specific light parameters included wavelength (3 %), light source type (8 %), power (41 %), pulse frequency (52 %), beam area (40 %), irradiance (43 %), exposure time (16 %), radiant energy (74 %) and fluence (16 %). Frequent use of incorrect terminology was also observed within the reviewed literature. A poor understanding of photophysics is evident as a significant number of papers neglected to report or misreported important radiometric data. These errors affect repeatability and reliability of studies shared between scientists, manufacturers and clinicians and could degrade efficacy of patient treatments. Researchers need a physicist or appropriately skilled engineer on the team, and manuscript reviewers should reject papers that do not report beam measurement methods and all ten key parameters: wavelength, power, irradiation time, beam area (at the skin or culture surface; this is not necessarily the same size as the aperture), radiant energy, radiant exposure, pulse parameters, number of treatments, interval between treatments and anatomical location. Inclusion of these parameters will improve the information available to compare and contrast study outcomes and improve repeatability, reliability of studies.
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Hampshire V. Refining analgesia strategies using lasers. Lab Anim (NY) 2015. [PMID: 26200082 DOI: 10.1038/laban.820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Sound programs for the humane care and use of animals within research facilities incorporate experimental refinements such as multimodal approaches for pain management. These approaches can include non-traditional strategies along with more established ones. The use of lasers for pain relief is growing in popularity among companion animal veterinary practitioners and technologists. Therefore, its application in the research sector warrants closer consideration.
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Phototherapy improves wound healing in rats subjected to high-fat diet. Lasers Med Sci 2015; 30:1481-8. [PMID: 25862476 DOI: 10.1007/s10103-015-1745-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2014] [Accepted: 03/18/2015] [Indexed: 12/25/2022]
Abstract
This study aimed to compare the phototherapy effects on wound healing in rats submitted to normal and high-fat diets. Thirty-six rats received normal lipidic diet (NL) and 36 high lipidic (HL) diet for 45 days. The nutritional status was measured by body mass, blood glucose, total cholesterol, and triglycerides levels. Four experimental groups were performed according light (L) therapy applied "on" or "off" (660 nm, 100 mW, 70 J/cm(2), 2 J) on 1.5-mm-punched dorsum skin wounds as NLL+, NLL-, HLL+, and HLL-. The wound healing rate (WHR) and oxidative stress markers were analyzed on 2nd, 7th, and 14th days. Despite no difference among body mass, the HL rats presented higher blood glucose, total cholesterol, and triglycerides levels than NL rats. Respectively, on the 2nd and 14th days, the HLL+ group presented the highest WHRs (0.38 ± 0.16/0.97 ± 0.02) among all groups, while the HLL- (-0.002 ± 0.12/0.81 ± 12.1) the lowest WHRs. Hydroxyproline level was lower in HLL- (6.41 ± 1.09 μg/mg) than HLL+ (7.71 ± 0.61 μg/mg) and also NLL+ (9.33 ± 0.84 μg/mg). HLL+ presented oxidative stress markers similar to normal control group (NLL-) during follow up and highest antioxidant defense on 7th day. The results showed phototherapy accelerated the cutaneous wound healing by modulating oxidative stress in rats with metabolic disorders under a high-fat diet.
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