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Ahmajärvi KM, Isoherranen KM, Mäkelä A, Venermo M. A change in the prevalence and the etiological factors of chronic wounds in Helsinki metropolitan area during 2008-2016. Int Wound J 2019; 16:522-526. [PMID: 30672095 DOI: 10.1111/iwj.13077] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Accepted: 12/12/2018] [Indexed: 11/27/2022] Open
Abstract
The prevalence of chronic wounds in the Helsinki metropolitan area in 2008 was investigated. Thereafter, a specialised wound care team was founded as part of the City of Helsinki Health Services, aiming for early diagnoses of chronic wounds. In the current study, we have repeated the prevalence study to analyse the changes in the prevalence of chronic wounds. A questionnaire on wound patients was sent to all units of social and health care in the Helsinki metropolitan area. We asked about the number of patients with wounds treated during a 24-hour period, as well the aetiology and location of the wounds. A total of 911 patients had, altogether, 1021 wounds. Thus, prevalence was 0.08%. Pressure and multifactorial ulcers were the most common aetiological groups, whereas wound without defined aetiology had diminished greatly (61%) The prevalence of chronic wound decreased when compared with 2008 (0.08% vs 0.1%). The number of elderly people aged over 65 years had increased 35%, and the age-adjusted prevalence had decreased. Wounds are treated mostly in primary care units and as outpatients. Therefore, the following conclusion may be reached: diagnostic process and implementation of treatment paths are strengthened within primary care units, yet prevalence of wounds has decreased.
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Affiliation(s)
- Kirsti M Ahmajärvi
- Doctoral Programme in Population Health, University of Helsinki, Helsinki, Finland.,City of Helsinki Social and Health Services, Helsinki, Finland
| | - Kirsi M Isoherranen
- Department of Dermatology, Helsinki University Hospital, University of Helsinki, Helsinki, Finland
| | - Anita Mäkelä
- Department of Vascular Surgery, Helsinki University Hospital, Helsinki, Finland
| | - Maarit Venermo
- Department of Vascular Surgery, Helsinki University Hospital, University of Helsinki, Helsinki, Finland
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The Wound Healing Potential of Aspilia africana (Pers.) C. D. Adams (Asteraceae). EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2019; 2019:7957860. [PMID: 30800171 PMCID: PMC6360599 DOI: 10.1155/2019/7957860] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Accepted: 12/23/2018] [Indexed: 01/31/2023]
Abstract
Wounds remain one of the major causes of death worldwide. Over the years medicinal plants and natural compounds have played an integral role in wound treatment. Aspilia africana (Pers.) C. D. Adams which is classified among substances with low toxicity has been used for generations in African traditional medicine to treat wounds, including stopping bleeding even from severed arteries. This review examined the potential of the extracts and phytochemicals from A. africana, a common herbaceous flowering plant which is native to Africa in wound healing. In vitro and in vivo studies have provided strong pharmacological evidences for wound healing effects of A. africana-derived extracts and phytochemicals. Singly or in synergy, the different bioactive phytochemicals including alkaloids, saponins, tannins, flavonoids, phenols, terpenoids, β-caryophyllene, germacrene D, α-pinene, carene, phytol, and linolenic acid in A. africana have been observed to exhibit a very strong anti-inflammatory, antimicrobial, and antioxidant activities which are important processes in wound healing. Indeed, A. africana wound healing ability is furthermore due to the fact that it can effectively reduce wound bleeding, hasten wound contraction, increase the concentration of basic fibroblast growth factor (BFGF) and platelet derived growth factor, and stimulate the haematological parameters, including white and red blood cells, all of which are vital components for the wound healing process. Therefore, these facts may justify why A. africana is used to treat wounds in ethnomedicine.
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Farina M, Alexander JF, Thekkedath U, Ferrari M, Grattoni A. Cell encapsulation: Overcoming barriers in cell transplantation in diabetes and beyond. Adv Drug Deliv Rev 2019; 139:92-115. [PMID: 29719210 DOI: 10.1016/j.addr.2018.04.018] [Citation(s) in RCA: 112] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 03/19/2018] [Accepted: 04/25/2018] [Indexed: 02/07/2023]
Abstract
Cell-based therapy is emerging as a promising strategy for treating a wide range of human diseases, such as diabetes, blood disorders, acute liver failure, spinal cord injury, and several types of cancer. Pancreatic islets, blood cells, hepatocytes, and stem cells are among the many cell types currently used for this strategy. The encapsulation of these "therapeutic" cells is under intense investigation to not only prevent immune rejection but also provide a controlled and supportive environment so they can function effectively. Some of the advanced encapsulation systems provide active agents to the cells and enable a complete retrieval of the graft in the case of an adverse body reaction. Here, we review various encapsulation strategies developed in academic and industrial settings, including the state-of-the-art technologies in advanced preclinical phases as well as those undergoing clinical trials, and assess their advantages and challenges. We also emphasize the importance of stimulus-responsive encapsulated cell systems that provide a "smart and live" therapeutic delivery to overcome barriers in cell transplantation as well as their use in patients.
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204
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Avishai E, Golubnitschaja O. Flammer Syndrome in the Context of Healing Impairments – Facts and Hypotheses for Multi-professional Consideration. FLAMMER SYNDROME 2019. [DOI: 10.1007/978-3-030-13550-8_12] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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205
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Prevalence of chronic wounds in the general population: systematic review and meta-analysis of observational studies. Ann Epidemiol 2019; 29:8-15. [DOI: 10.1016/j.annepidem.2018.10.005] [Citation(s) in RCA: 184] [Impact Index Per Article: 36.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 09/20/2018] [Accepted: 10/17/2018] [Indexed: 12/15/2022]
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206
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REAL-WORLD CLINICAL EVALUATION AND COSTS OF TELEMEDICINE FOR CHRONIC WOUND MANAGEMENT. Int J Technol Assess Health Care 2018; 34:567-575. [PMID: 30369340 DOI: 10.1017/s0266462318000685] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
BACKGROUND Chronic wounds are frequent, affect quality of life, and increase care costs. Telemedicine provides potential for effective wound care management, especially for the monitoring of complex wounds at home. OBJECTIVES The objective of the present study was to determine the clinical effects and costs of telemedicine for the follow-up of complex chronic wounds from the perspective of the public health insurance. The study ran over a period of 9 months. METHODS We conducted a prospective, pragmatic, open-label, observational study and carried out a cost-effectiveness analysis. A total of 116 patients with chronic wounds were assigned to their choice of two groups: telemedicine (N = 77) and traditional follow-up (control; N = 39). The primary outcome was the time to healing. Secondary outcomes included percentage of wounds reaching target objective, percentage of wounds healed completely, outpatient care costs, travel costs, and hospitalizations. RESULTS Time to healing was shorter in the telemedicine group than in the control group (137 versus 174 days; p .05). Outpatient care and hospitalization costs were not significantly different. The main results in terms of economic savings were medical transport costs reimbursed by the French public health insurance, which were significantly lower in the telemedicine group. Telemedicine costs were found to be €4,583 less per patient compared with standard practice over 9 months. CONCLUSIONS This trial suggests that telemedicine saves travel costs and results in a shorter healing time than traditional follow-up.
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208
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Simões D, Miguel SP, Ribeiro MP, Coutinho P, Mendonça AG, Correia IJ. Recent advances on antimicrobial wound dressing: A review. Eur J Pharm Biopharm 2018; 127:130-141. [DOI: 10.1016/j.ejpb.2018.02.022] [Citation(s) in RCA: 501] [Impact Index Per Article: 83.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 02/07/2018] [Accepted: 02/16/2018] [Indexed: 12/15/2022]
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209
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Cogan NG, Mellers AP, Patel BN, Powell BD, Aggarwal M, Harper KM, Blaber M. A mathematical model for the determination of mouse excisional wound healing parameters from photographic data. Wound Repair Regen 2018; 26:136-143. [DOI: 10.1111/wrr.12634] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Accepted: 03/30/2018] [Indexed: 11/28/2022]
Affiliation(s)
- Nicholas G. Cogan
- Departments of Mathematics; Florida State University; Tallahassee Florida
| | - Alana P. Mellers
- Biomedical Sciences; Florida State University; Tallahassee Florida
| | - Bhavi N. Patel
- Biomedical Sciences; Florida State University; Tallahassee Florida
| | - Brett D. Powell
- Biomedical Sciences; Florida State University; Tallahassee Florida
| | - Manu Aggarwal
- Departments of Mathematics; Florida State University; Tallahassee Florida
| | - Kathleen M. Harper
- Biomedical Research Laboratory Animal Resources; Florida State University; Tallahassee Florida
| | - Michael Blaber
- Biomedical Sciences; Florida State University; Tallahassee Florida
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210
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Mithieux SM, Aghaei-Ghareh-Bolagh B, Yan L, Kuppan KV, Wang Y, Garces-Suarez F, Li Z, Maitz PK, Carter EA, Limantoro C, Chrzanowski W, Cookson D, Riboldi-Tunnicliffe A, Baldock C, Ohgo K, Kumashiro KK, Edwards G, Weiss AS. Tropoelastin Implants That Accelerate Wound Repair. Adv Healthc Mater 2018; 7:e1701206. [PMID: 29450975 DOI: 10.1002/adhm.201701206] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Revised: 01/14/2018] [Indexed: 11/12/2022]
Abstract
A novel, pure, synthetic material is presented that promotes the repair of full-thickness skin wounds. The active component is tropoelastin and leverages its ability to promote new blood vessel formation and its cell recruiting properties to accelerate wound repair. Key to the technology is the use of a novel heat-based, stabilized form of human tropoelastin which allows for tunable resorption. This implantable material contributes a tailored insert that can be shaped to the wound bed, where it hydrates to form a conformable protein hydrogel. Significant benefits in the extent of wound healing, dermal repair, and regeneration of mature epithelium in healthy pigs are demonstrated. The implant is compatible with initial co-treatment with full- and split-thickness skin grafts. The implant's superiority to sterile bandaging, commercial hydrogel and dermal regeneration template products is shown. On this basis, a new concept for a prefabricated tissue repair material for point-of-care treatment of open wounds is provided.
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Affiliation(s)
- Suzanne M. Mithieux
- School of Life and Environmental Sciences; University of Sydney; NSW 2006 Australia
- Charles Perkins Centre; University of Sydney; NSW 2006 Australia
| | - Behnaz Aghaei-Ghareh-Bolagh
- School of Life and Environmental Sciences; University of Sydney; NSW 2006 Australia
- Charles Perkins Centre; University of Sydney; NSW 2006 Australia
| | - Leping Yan
- School of Life and Environmental Sciences; University of Sydney; NSW 2006 Australia
- Charles Perkins Centre; University of Sydney; NSW 2006 Australia
| | - Kekini V. Kuppan
- School of Life and Environmental Sciences; University of Sydney; NSW 2006 Australia
- Charles Perkins Centre; University of Sydney; NSW 2006 Australia
- Heart Research Institute; University of Sydney; NSW 2006 Australia
| | - Yiwei Wang
- Burns Research Group; ANZAC Research Institute; University of Sydney; Concord NSW 2139 Australia
| | - Francia Garces-Suarez
- Burns Research Group; ANZAC Research Institute; University of Sydney; Concord NSW 2139 Australia
| | - Zhe Li
- Burns Research Group; ANZAC Research Institute; University of Sydney; Concord NSW 2139 Australia
| | - Peter K. Maitz
- Burns Research Group; ANZAC Research Institute; University of Sydney; Concord NSW 2139 Australia
| | - Elizabeth A. Carter
- Vibrational Spectroscopy Core Facility and Faculty of Chemistry; University of Sydney; NSW 2006 Australia
| | - Christina Limantoro
- Faculty of Pharmacy; University of Sydney; NSW 2006 Australia
- Australian Institute for Nanoscale Science and Technology; University of Sydney; NSW 2006 Australia
| | - Wojciech Chrzanowski
- Faculty of Pharmacy; University of Sydney; NSW 2006 Australia
- Australian Institute for Nanoscale Science and Technology; University of Sydney; NSW 2006 Australia
| | | | | | - Clair Baldock
- Wellcome Trust Centre for Cell-Matrix Research; Division of Cell Matrix Biology and Regenerative Medicine; School of Biological Sciences; Manchester Academic Health Centre; University of Manchester; Manchester M13 9PT UK
| | - Kosuke Ohgo
- Department of Chemistry; University of Hawaii; Honolulu HI 96822 USA
| | | | - Glenn Edwards
- School of Animal and Veterinary Sciences; Charles Sturt University; NSW 2678 Australia
| | - Anthony S. Weiss
- School of Life and Environmental Sciences; University of Sydney; NSW 2006 Australia
- Charles Perkins Centre; University of Sydney; NSW 2006 Australia
- Bosch Institute; University of Sydney; NSW 2006 Australia
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211
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Wound Healing and Omega-6 Fatty Acids: From Inflammation to Repair. Mediators Inflamm 2018; 2018:2503950. [PMID: 29849484 PMCID: PMC5925018 DOI: 10.1155/2018/2503950] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Accepted: 03/08/2018] [Indexed: 12/25/2022] Open
Abstract
Wound healing is an evolutionarily conserved process that is essential for species survival. Wound healing involves a series of biochemical and cellular events that are tightly controlled, divided into 3 concomitant and overlapping phases: inflammation, proliferation, and remodelling. Poor wound healing or a chronic wound represents a silent epidemic that affects billions of people worldwide. Considering the involvement of immune cells in its resolution, recent studies are focused on investigating the roles of immune nutrients such as amino acids, minerals, and fatty acids on wound healing. Among the fatty acids, much attention has been given to omega-6 (ω-6) fatty acids since they can modulate cell migration and proliferation, phagocytic capacity, and production of inflammatory mediators. The present review summarizes current knowledge about the role of ω-6 fatty acids in the wound healing context.
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212
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Heher P, Mühleder S, Mittermayr R, Redl H, Slezak P. Fibrin-based delivery strategies for acute and chronic wound healing. Adv Drug Deliv Rev 2018; 129:134-147. [PMID: 29247766 DOI: 10.1016/j.addr.2017.12.007] [Citation(s) in RCA: 80] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Revised: 10/24/2017] [Accepted: 12/09/2017] [Indexed: 12/17/2022]
Abstract
Fibrin, a natural hydrogel, is the end product of the physiological blood coagulation cascade and naturally involved in wound healing. Beyond its role in hemostasis, it acts as a local reservoir for growth factors and as a provisional matrix for invading cells that drive the regenerative process. Its unique intrinsic features do not only promote wound healing directly via modulation of cell behavior but it can also be fine-tuned to evolve into a delivery system for sustained release of therapeutic biomolecules, cells and gene vectors. To further augment tissue regeneration potential, current strategies exploit and modify the chemical and physical characteristics of fibrin to employ combined incorporation of several factors and their timed release. In this work we show advanced therapeutic approaches employing fibrin matrices in wound healing and cover the many possibilities fibrin offers to the field of regenerative medicine.
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213
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Shin SC, Seo Y, Park HY, Jung DW, Shin TH, Son H, Kim YK, Lee JC, Sung ES, Jang JY, Kim HS, Lee BJ. Regenerative potential of tonsil mesenchymal stem cells on surgical cutaneous defect. Cell Death Dis 2018; 9:183. [PMID: 29416004 PMCID: PMC5833728 DOI: 10.1038/s41419-017-0248-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Revised: 12/03/2017] [Accepted: 12/18/2017] [Indexed: 12/23/2022]
Abstract
As tissue engineering and regenerative medicine have evolved recently, stem cell therapy has been investigated in the field of impaired wound healing. Several studies have reported that mesenchymal stem cells derived from various tissues including bone marrow and adipose tissue can exert the regenerative efficacy in the wound healing. Previously, we have demonstrated the isolation and characterization of tonsil-derived mesenchymal stem cells (TMSCs) with excellent proliferative property. In the present study, we aimed to evaluate the regenerative efficacy of TMSCs in the wound healing process. Two distinct cutaneous surgical defects were generated in the dorsum of mice. Each wound was treated with TMSCs or phosphate-buffered saline (PBS), respectively. After sacrifice, the skin and subcutaneous tissues around the surgical defect were harvested and assessed for inflammation, re-epithelialization, dermal regeneration, and granulation tissue formation. The administration of TMSCs into wound beds significantly promoted the repair of surgical defects in mice. Especially, TMSCs efficiently contributed to the attenuation of excessive inflammation in the surgical lesion, as well as the augmentation of epidermal and dermal regeneration. To elucidate the underlying mechanisms, TMSCs were analyzed for their potency in immunomodulatory ability on immune cells, stimulatory effect on the proliferation of keratinocytes, and fibroblasts, as well as the regulation of fibroblast differentiation. TMSCs inhibited the non-specific or T-cell-specific proliferation of peripheral blood mononuclear cells, as well as the M1 polarization of macrophage-like cells. Moreover, TMSCs augmented the proliferation of skin-constituting fibroblasts and keratinocytes while they suppressed the differentiation of fibroblasts into myofibroblasts. Taken together, our findings demonstrate the regenerative potential of TMSCs in wound healing process through the regulation on inflammation, proliferation, and remodeling of various skin cells, implying that TMSCs can be a promising alternative for wound repair.
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Affiliation(s)
- Sung-Chan Shin
- Department of Otorhinolaryngology-Head and Neck Surgery, Biomedical Research Institute, Pusan National University School of Medicine, Pusan National University Hospital, Busan, Republic of Korea
| | - Yoojin Seo
- Biomedical Research Institute, Pusan National University School of Medicine, Pusan National University Hospital, Busan, Republic of Korea
| | - Hee Young Park
- Department of Otorhinolaryngology-Head and Neck Surgery, Biomedical Research Institute, Pusan National University School of Medicine, Pusan National University Hospital, Busan, Republic of Korea
| | - Da-Woon Jung
- Department of Otorhinolaryngology-Head and Neck Surgery, Biomedical Research Institute, Pusan National University School of Medicine, Pusan National University Hospital, Busan, Republic of Korea
| | - Tae-Hoon Shin
- Biomedical Research Institute, Pusan National University School of Medicine, Pusan National University Hospital, Busan, Republic of Korea
| | - Haejin Son
- Biomedical Research Institute, Pusan National University School of Medicine, Pusan National University Hospital, Busan, Republic of Korea
| | - Young Keum Kim
- Department of Pathology, Biomedical Research Institute, Pusan National University School of Medicine, Pusan National University Hospital, Busan, Republic of Korea
| | - Jin-Choon Lee
- Department of Otorhinolaryngology-Head and Neck Surgery, Biomedical Research Institute, Pusan National University School of Medicine, Yangsan Pusan National University Hospital, Yangsan, Republic of Korea
| | - Eui-Suk Sung
- Department of Otorhinolaryngology-Head and Neck Surgery, Biomedical Research Institute, Pusan National University School of Medicine, Yangsan Pusan National University Hospital, Yangsan, Republic of Korea
| | - Jeon Yeob Jang
- Department of Otorhinolaryngology-Head and Neck Surgery, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Hyung-Sik Kim
- Biomedical Research Institute, Pusan National University School of Medicine, Pusan National University Hospital, Busan, Republic of Korea.
| | - Byung-Joo Lee
- Department of Otorhinolaryngology-Head and Neck Surgery, Biomedical Research Institute, Pusan National University School of Medicine, Pusan National University Hospital, Busan, Republic of Korea.
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Junka AF, Rakoczy R, Szymczyk P, Bartoszewicz M, Sedghizadeh PP, Fijałkowski K. Application of Rotating Magnetic Fields Increase the Activity of Antimicrobials Against Wound Biofilm Pathogens. Sci Rep 2018; 8:167. [PMID: 29317719 PMCID: PMC5760636 DOI: 10.1038/s41598-017-18557-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Accepted: 11/16/2017] [Indexed: 11/11/2022] Open
Abstract
Infective complications are a major factor contributing to wound chronicity and can be associated with significant morbidity or mortality. Wound bacteria are protected in biofilm communities and are highly resistant to immune system components and to antimicrobials used in wound therapy. There is an urgent medical need to more effectively eradicate wound biofilm pathogens. In the present work, we tested the impact of such commonly used antibiotics and antiseptics as gentamycin, ciprofloxacin, octenidine, chlorhexidine, polihexanidine, and ethacridine lactate delivered to Staphylococcus aureus and Pseudomonas aeruginosa biofilms in the presence of rotating magnetic fields (RMFs) of 10–50 Hz frequency and produced by a customized RMF generator. Fifty percent greater reduction in biofilm growth and biomass was observed after exposure to RMF as compared to biofilms not exposed to RMF. Our results suggest that RMF as an adjunct to antiseptic wound care can significantly improve antibiofilm activity, which has important translational potential for clinical applications.
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Affiliation(s)
- A F Junka
- Department of Pharmaceutical Microbiology and Parasitology, Wrocław Medical University, Borowska 211A, 50-556, Wrocław, Poland
| | - R Rakoczy
- Institute of Chemical Engineering and Environmental Protection Processes, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology, Szczecin, Piastów 42, 71-065, Szczecin, Poland
| | - P Szymczyk
- Centre for Advanced Manufacturing Technologies (CAMT/FPC), Faculty of Mechanical Engineering, Wrocław University of Science and Technology, Łukasiewicza 5, 50-371, Wrocław, Poland
| | - M Bartoszewicz
- Department of Pharmaceutical Microbiology and Parasitology, Wrocław Medical University, Borowska 211A, 50-556, Wrocław, Poland
| | - P P Sedghizadeh
- Center for Biofilms, Ostrow School of Dentistry of University of Southern California, 925 West 34th, Los Angeles, California, United States of America
| | - K Fijałkowski
- Department of Immunology, Microbiology and Physiological Chemistry, Faculty of Biotechnology and Animal Husbandry, West Pomeranian University of Technology, Szczecin, Piastów 45, 70-311, Szczecin, Poland.
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Watt SM, Pleat JM. Stem cells, niches and scaffolds: Applications to burns and wound care. Adv Drug Deliv Rev 2018; 123:82-106. [PMID: 29106911 DOI: 10.1016/j.addr.2017.10.012] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2017] [Revised: 10/19/2017] [Accepted: 10/22/2017] [Indexed: 12/11/2022]
Abstract
The importance of skin to survival, and the devastating physical and psychological consequences of scarring following reparative healing of extensive or difficult to heal human wounds, cannot be disputed. We discuss the significant challenges faced by patients and healthcare providers alike in treating these wounds. New state of the art technologies have provided remarkable insights into the role of skin stem and progenitor cells and their niches in maintaining skin homeostasis and in reparative wound healing. Based on this knowledge, we examine different approaches to repair extensive burn injury and chronic wounds, including full and split thickness skin grafts, temporising matrices and scaffolds, and composite cultured skin products. Notable developments include next generation skin substitutes to replace split thickness skin autografts and next generation gene editing coupled with cell therapies to treat genodermatoses. Further refinements are predicted with the advent of bioprinting technologies, and newly defined biomaterials and autologous cell sources that can be engineered to more accurately replicate human skin architecture, function and cosmesis. These advances will undoubtedly improve quality of life for patients with extensive burns and difficult to heal wounds.
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Affiliation(s)
- Suzanne M Watt
- Stem Cell Research, Nuffield Division of Clinical Laboratory Medicine, Radcliffe Department of Medicine, University of Oxford, John Radcliffe Hospital, Oxford OX3 9BQ, UK.
| | - Jonathan M Pleat
- Department of Plastic and Reconstructive Surgery, North Bristol NHS Trust and University of Bristol, Westbury on Trym, Bristol BS9 3TZ, UK.
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Topical use and systemic action of green and roasted coffee oils and ground oils in a cutaneous incision model in rats (Rattus norvegicus albinus). PLoS One 2017; 12:e0188779. [PMID: 29236720 PMCID: PMC5728535 DOI: 10.1371/journal.pone.0188779] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2017] [Accepted: 11/13/2017] [Indexed: 12/17/2022] Open
Abstract
Introduction Wounds are a common health problem. Coffee is widely consumed and its oil contains essential fatty acids. We evaluated the local (skin) and systemic effects associated with the topical use of coffee oils in rats. Methods Punch skin wounds (6 mm) incisions were generated on the backs of 75 rats. Saline (SS), mineral oil (MO), green coffee oil (GCO), roasted coffee oil (RCO), green coffee ground oil (GCGO) or roasted coffee ground oil (RCGO) were topically applied to the wounds. Healing was evaluated by visual and histological/morphometric optical microscopy examination; second harmonics generation (SHG) microscopy, wound tissue q-PCR (values in fold-change) and blood serum (ELISA, values in pg/mL). Results RCO treated animals presented faster wound healing (0.986 vs. 0.422), higher mRNA expression of IGF-1 (2.78 vs. 1.00, p = 0.01), IL-6 (10.72 vs. 1.00, p = 0.001) and IL-23 (4.10 vs. 1.2, p = 0.05) in early stages of wound healing; higher IL-12 (3.32 vs. 1.00, p = 0.05) in the later stages; and lower serum levels of IFN-γ (11.97 vs. 196.45, p = 0.01). GCO treatment led to higher mRNA expression of IL-6 (day 2: 7.94 vs. 1.00, p = 0.001 and day 4: 6.90 vs. 1.00, p = 0.01) and IL-23 (7.93 vs. 1.20, p = 0.001) in the early stages. The RCO treatment also produced higher serum IFN-α levels throughout the experiment (day 2: 52.53 vs. 21.20; day 4: 46.98 vs.21.56; day 10: 83.61 vs. 25.69, p = 0.05) and lower levels of IL-4 (day 4: 0.9 vs.13.36, p = 0.01), adiponectin (day 10: 8,367.47 vs. 16,526.38, p = 0.001) and IFN-γ (day 4: 43.03 vs.196.45, p = 0.05). The SHG analysis showed a higher collagen density in the RCO and GCO treatments (p = 0.05). Conclusion Topical treatment with coffee oils led to systemic actions and faster wound healing in rats. Further studies should be performed are necessary to assess the safety of topical vegetal oil use for skin lesions.
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217
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The JAK/STAT signaling pathway and photobiomodulation in chronic wound healing. Cytokine Growth Factor Rev 2017; 38:73-79. [DOI: 10.1016/j.cytogfr.2017.10.001] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Revised: 09/29/2017] [Accepted: 10/02/2017] [Indexed: 12/26/2022]
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218
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Coleman S, Nelson EA, Vowden P, Vowden K, Adderley U, Sunderland L, Harker J, Conroy T, Fiori S, Bezer N, Holding E, Atkin L, Stables E, Dumville J, Gavelle S, Sandoz H, Moore K, Chambers T, Napper S, Nixon J. Development of a generic wound care assessment minimum data set. J Tissue Viability 2017; 26:226-240. [DOI: 10.1016/j.jtv.2017.09.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Revised: 09/05/2017] [Accepted: 09/14/2017] [Indexed: 10/18/2022]
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Soleimani Z, Hashemdokht F, Bahmani F, Taghizadeh M, Memarzadeh MR, Asemi Z. Clinical and metabolic response to flaxseed oil omega-3 fatty acids supplementation in patients with diabetic foot ulcer: A randomized, double-blind, placebo-controlled trial. J Diabetes Complications 2017; 31:1394-1400. [PMID: 28716357 DOI: 10.1016/j.jdiacomp.2017.06.010] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Revised: 06/20/2017] [Accepted: 06/20/2017] [Indexed: 01/09/2023]
Abstract
BACKGROUND Data on the effects of flaxseed oil omega-3 fatty acids supplementation on wound healing and metabolic status in subjects with diabetic foot ulcer (DFU) are scarce. OBJECTIVE This study was conducted to evaluate the effects of flaxseed oil omega-3 fatty acids supplementation on wound healing and metabolic status in subjects with DFU. METHODS The current randomized, double-blind, placebo-controlled trial was conducted among 60 subjects (aged 40-85years old) with grade 3 DFU. Subjects were randomly allocated into two groups (30 subjects each group) to receive either 1000mg omega-3 fatty acids from flaxseed oil supplements or placebo twice a day for 12weeks. RESULTS After the 12-week intervention, compared with the placebo, omega-3 fatty acids supplementation resulted in significant decreases in ulcer length (-2.0±2.3 vs. -1.0±1.1cm, P=0.03), width (-1.8±1.7 vs. -1.0±1.0cm, P=0.02) and depth (-0.8±0.6 vs. -0.5±0.5cm, P=0.01). Additionally, significant reductions in serum insulin concentrations (-4.4±5.5 vs. +1.4±8.3 μIU/mL, P=0.002), homeostasis model of assessment-estimated insulin resistance (-2.1±3.0 vs. +1.0±5.0, P=0.005) and HbA1c (-0.9±1.5 vs. -0.1±0.4%, P=0.01), and a significant rise in the quantitative insulin sensitivity check index (+0.01±0.01 vs. -0.005±0.02, P=0.002) were seen following supplementation with omega-3 fatty acids compared with the placebo. In addition, omega-3 fatty acids supplementation significantly decreased serum high sensitivity C-reactive protein (hs-CRP) (-25.5±31.5 vs. -8.2±18.9μg/mL, P=0.01), and significantly increased plasma total antioxidant capacity (TAC) (+83.5±111.7 vs. -73.4±195.5mmol/L, P<0.001) and glutathione (GSH) concentrations (+60.7±140.2 vs. -15.5±129.7μmol/L, P=0.03) compared with the placebo. CONCLUSIONS Overall, omega-3 fatty acids supplementation for 12weeks among subjects with DFU had beneficial effects on parameters of ulcer size, markers of insulin metabolism, serum hs-CRP, plasma TAC and GSH levels. In addition, flaxseed oil omega-3 fatty acids may have played an indirect role in wound healing due to its effects on improved metabolic profiles.
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Affiliation(s)
- Zahra Soleimani
- Department of Infectious Disease, school of medicine, Kashan University of Medical Sciences, Kashan, I.R., Iran
| | - Fatemeh Hashemdokht
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, I.R., Iran
| | - Fereshteh Bahmani
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, I.R., Iran
| | - Mohsen Taghizadeh
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, I.R., Iran
| | | | - Zatollah Asemi
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, I.R., Iran.
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Velier M, Magalon J, Daumas A, Cassar M, Francois P, Ghazouane A, Philandrianos C, Bertrand B, Frere C, Bernot D, Villani P, George FD, Sabatier F. Production of platelet-rich plasma gel from elderly patients under antithrombotic drugs: Perspectives in chronic wounds care. Platelets 2017; 29:496-503. [DOI: 10.1080/09537104.2017.1336212] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- M. Velier
- Cell therapy laboratory, CBT-1409, INSERM, Aix-Marseille University, Assistance Publique Hôpitaux de Marseille, Marseille, France
| | - J. Magalon
- Cell therapy laboratory, CBT-1409, INSERM, Aix-Marseille University, Assistance Publique Hôpitaux de Marseille, Marseille, France
- Vascular Research Center Marseille, UMR-1076 INSERM, Aix-Marseille University, Marseille, France
- Hematology and Vascular Biology Department, Hôpital de la Conception, AP-HM, Marseille, France
| | - A. Daumas
- Geriatric and Internal Medicine Department, Hôpital de la Timone, AP-HM, Marseille, France
| | - M. Cassar
- Cell therapy laboratory, CBT-1409, INSERM, Aix-Marseille University, Assistance Publique Hôpitaux de Marseille, Marseille, France
| | - P. Francois
- Cell therapy laboratory, CBT-1409, INSERM, Aix-Marseille University, Assistance Publique Hôpitaux de Marseille, Marseille, France
| | - A. Ghazouane
- Cell therapy laboratory, CBT-1409, INSERM, Aix-Marseille University, Assistance Publique Hôpitaux de Marseille, Marseille, France
| | - C. Philandrianos
- Plastic Surgery Department, Hôpital de la Conception, AP-HM, Marseille, France
| | - B. Bertrand
- Plastic Surgery Department, Hôpital de la Conception, AP-HM, Marseille, France
| | - C. Frere
- Hematology Department, Hôpital de la Timone, AP-HM, Marseille, France
| | - D. Bernot
- Hematology Department, Hôpital de la Timone, AP-HM, Marseille, France
| | - P. Villani
- Geriatric and Internal Medicine Department, Hôpital de la Timone, AP-HM, Marseille, France
| | - F. Dignat George
- Vascular Research Center Marseille, UMR-1076 INSERM, Aix-Marseille University, Marseille, France
- Hematology and Vascular Biology Department, Hôpital de la Conception, AP-HM, Marseille, France
| | - F Sabatier
- Cell therapy laboratory, CBT-1409, INSERM, Aix-Marseille University, Assistance Publique Hôpitaux de Marseille, Marseille, France
- Vascular Research Center Marseille, UMR-1076 INSERM, Aix-Marseille University, Marseille, France
- Hematology and Vascular Biology Department, Hôpital de la Conception, AP-HM, Marseille, France
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