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Markström I, Falk-Brynhildsen K, Bachrack-Lindström M, Hollman Frisman G, Mernelius S, Bjerså K. Impact of postoperative skin disinfection with chlorhexidine on bacterial colonisation following shoulder arthroplasty surgery: a controlled randomised study. Infect Prev Pract 2024; 6:100365. [PMID: 38765917 PMCID: PMC11098957 DOI: 10.1016/j.infpip.2024.100365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 04/05/2024] [Indexed: 05/22/2024] Open
Abstract
Background Surgical site infections are a significant threat to patient safety. Shoulder arthroplasty carries an increased risk due to foreign implants. Skin preparation in general is a key preoperative preventive intervention, and the use of chlorhexidine can have a prolonged effect on bacterial colonisation. There is a lack of evidence regarding whether postoperative disinfection has an impact on bacterial colonisation during the first 48 hours after surgery. Our hypothesis was that applying postoperative antiseptic with 5 mg/ml chlorhexidine in 70% ethanol would lead to reduced bacterial colonisation with Staphylococcus aureus, coagulase-negative staphylococcus and Cutibacterium acnes around the surgical wound within the initial 48 hours after elective shoulder surgery, compared with the use of sodium chloride. Methods A single-blinded, controlled study was conducted at a county hospital in Sweden. Swabs from the skin were collected four times: at baseline, preoperatively, after the intervention and after 48 hours. Results Our hypothesis was not confirmed. Although not statistically significant, the chlorhexidine group had a higher prevalence of bacterial colonisation of clinically relevant bacteria. Conclusions Our study could not confirm that postoperative disinfection with chlorhexidine reduces bacterial colonisation compared with sodium chloride. The results highlight the complexity of SSIs and the importance of evidence-based preventive skin preparation to ensure patient safety. Further research is needed, considering the study's limitations, to explore and evaluate the effectiveness of different skin cleansing solutions and preventive strategies in diverse surgical contexts.
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Affiliation(s)
- Ida Markström
- Department of Health, Medicine and Caring Sciences, Division of Nursing Sciences and Reproductive Health, Linköping University, Linköping, Sweden
- Department of Anaesthesiology and Intensive Care, Vrinnevi Hospital, Norrköping, Sweden
| | - Karin Falk-Brynhildsen
- Faculty of Medicine and Health, School of Health Sciences, Örebro University, Örebro, Sweden
| | - Margareta Bachrack-Lindström
- Department of Health, Medicine and Caring Sciences, Division of Nursing Sciences and Reproductive Health, Linköping University, Linköping, Sweden
| | - Gunilla Hollman Frisman
- Department of Health, Medicine and Caring Sciences, Division of Nursing Sciences and Reproductive Health, Linköping University, Linköping, Sweden
| | - Sara Mernelius
- Laboratory Medicine, Region Jönköping County, Jönköping and Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Kristofer Bjerså
- Department of Surgery, Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
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Rabbani M, Rahman E, Powner MB, Triantis IF. Making Sense of Electrical Stimulation: A Meta-analysis for Wound Healing. Ann Biomed Eng 2024; 52:153-177. [PMID: 37743460 PMCID: PMC10808217 DOI: 10.1007/s10439-023-03371-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Accepted: 09/11/2023] [Indexed: 09/26/2023]
Abstract
Electrical stimulation as a mode of external enhancement factor in wound healing has been explored widely. It has proven to have multidimensional effects in wound healing including antibacterial, galvanotaxis, growth factor secretion, proliferation, transdifferentiation, angiogenesis, etc. Despite such vast exploration, this modality has not yet been established as an accepted method for treatment. This article reviews and analyzes the approaches of using electrical stimulation to modulate wound healing and discusses the incoherence in approaches towards reporting the effect of stimulation on the healing process. The analysis starts by discussing various processes adapted in in vitro, in vivo, and clinical practices. Later it is focused on in vitro approaches directed to various stages of wound healing. Based on the analysis, a protocol is put forward for reporting in vitro works in such a way that the outcomes of the experiment are replicable and scalable in other setups. This work proposes a ground of unification for all the in vitro approaches in a more sensible manner, which can be further explored for translating in vitro approaches to complex tissue stimulation to establish electrical stimulation as a controlled clinical method for modulating wound healing.
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Affiliation(s)
- Mamun Rabbani
- Research Centre for Biomedical Engineering, School of Science and Technology, City University of London, Northampton Square, London, ECIV 0HB, UK
| | - Enayetur Rahman
- Research Centre for Biomedical Engineering, School of Science and Technology, City University of London, Northampton Square, London, ECIV 0HB, UK
| | - Michael B Powner
- Centre for Applied Vision Research, School of Health and Psychological Sciences, City University of London, Northampton Square, London, ECIV 0HB, UK
| | - Iasonas F Triantis
- Research Centre for Biomedical Engineering, School of Science and Technology, City University of London, Northampton Square, London, ECIV 0HB, UK.
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Gurevich M, Heinz SM, Fridman R, Hawkins J, Wachuku CD. Use of autologous whole blood clot in the treatment of complex surgical wounds: a case series. J Wound Care 2023; 32:S4-S9. [PMID: 36744737 DOI: 10.12968/jowc.2023.32.sup2.s4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
OBJECTIVE Dehiscence and infection of hard-to-heal surgical wounds results in an increased risk of complications and mortality. A hard-to-heal surgical wound will present decreased levels of growth factors along with increased levels of debris and matrix metalloproteinases, resulting in the destruction of the extracellular matrix (ECM). ActiGraft (RedDress Ltd., Israel) is an autologous whole blood clot treatment, created at a point of care, to promote wound healing. We hereby present the efficacy of ActiGraft in a case series of hard-to-heal surgical wounds. METHOD A registry study of patients with surgical wounds was conducted in private clinics and hospitals across the US and Israel (NCT04699305). Autologous whole blood clot was created at point of care using the patient's own blood. RESULTS A total of 14 patients took part in the study. Autologous whole blood clot treatment resulted in a mean percent wound area reduction of 72.33% at four weeks, with 33.33% of wounds achieving complete closure by week 4. At week 12, 78.54% of the wounds achieved complete closure. CONCLUSION Surgical wounds in patients with comorbidities may fail to initiate the natural wound healing mechanism which in turn may cause deterioration of the wound into a hard-to-heal stage. In this case series, autologous whole blood clot treatment was able to restore wound healing, avoiding the risk of infection and amputation of an affected limb. The properties of autologous whole blood clot as an ECM reduce the risk of infection, causing the wound to progress from the inflammatory phase to the proliferative phase. Autologous whole blood clot treatment in hard-to-heal surgical wounds was found to be an effective approach, reducing the risk of infection and promoting cell granulation, resulting in wound closure.
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Affiliation(s)
- Maxim Gurevich
- Diabetic Foot Clinic, Hillel Yaffe Hospital, Hadera, Israel
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Subramanian S, Duraipandian C, Alsayari A, Ramachawolran G, Wong LS, Sekar M, Gan SH, Subramaniyan V, Seethalakshmi S, Jeyabalan S, Dhanasekaran S, Chinni SV, Mat Rani NNI, Wahab S. Wound healing properties of a new formulated flavonoid-rich fraction from Dodonaea viscosa Jacq. leaves extract. Front Pharmacol 2023; 14:1096905. [PMID: 36817128 PMCID: PMC9932054 DOI: 10.3389/fphar.2023.1096905] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 01/18/2023] [Indexed: 02/05/2023] Open
Abstract
Background: Dodonaea viscosa Jacq. (D. viscosa) belongs to the family of Sapindaceae, commonly known as "Sinatha," and is used as a traditional medicine for treating wounds due to its high flavonoids content. However, to date there is no experimental evidence on its flavonoid-rich fraction of D. viscosa formulation as an agent for healing wounds. Objective: The present study aimed to evaluate the wound healing effect of ethyl acetate fraction of D. viscosa leaves on dermal wounds. Methods: The ethyl acetate fraction was produced from a water-ethanol extract of D. viscosa leaves and was quantitatively evaluated using the HPLC technique. The in-vivo wound healing ability of the ethyl acetate fraction of D. viscosa ointment (DVFO, 2.5%w/w and 5%w/w) was investigated in Sprague-Dawley rats utilizing an incision and excision paradigm with povidone-iodine ointment (5% w/w) as a control. The percentage of wound closure, hydroxyproline and hexosamine concentrations, tensile strength and epithelialization duration were measured. Subsequently, histopathology analysis of skin samples as well as western blots were performed for collagen type 3 (COL3A1), basic fibroblast growth factor (bFGF) and vascular endothelial growth factor (VEGF). Results: The ethyl acetate fraction of D. viscosa revealed flavonoids with high concentrations of quercetin (6.46% w/w) and kaempferol (0.132% w/w). Compared to the control group, the DVFO (2.5% and 5.0% w/w) significantly accelerated wound healing in both models, as demonstrated by quicker wound contraction, epithelialization, elevated hydroxyproline levels and increased tensile strength. Histopathological investigations also revealed that DVFO treatment improved wound healing by re-epithelialization, collagen formation and vascularization of damaged skin samples. Western blot analysis further demonstrated an up-regulation of COL3A, vascular endothelial growth factor and bFGF protein in wound granulation tissue of the DVFO-treated group (p < 0.01). Conclusion: It is concluded that flavonoid-rich D. viscosa ethyl acetate fraction promotes wound healing by up-regulating the expressions of COL3A, VEGF and bFGF protein in wound granulation tissue. However, extensive clinical and pre-clinical research on the flavonoid-rich fraction of D. viscosa is needed to determine its significant impact in the healing of human wounds.
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Affiliation(s)
- Shanthi Subramanian
- Department of Pharmacognosy, Sri Ramachandra Faculty of Pharmacy, Sri Ramachandra Institute of Higher Education and Research (DU), Chennai, Tamilnadu, India
| | - Chamundeeswari Duraipandian
- Department of Pharmacognosy, Sri Ramachandra Faculty of Pharmacy, Sri Ramachandra Institute of Higher Education and Research (DU), Chennai, Tamilnadu, India
| | - Abdulrhman Alsayari
- Department of Pharmacognosy, College of Pharmacy, King Khalid University, Abha, Saudi Arabia,Complementary and Alternative Medicine Unit, King Khalid University, Abha, Saudi Arabia
| | - Gobinath Ramachawolran
- Department of Foundation, RCSI and UCD Malaysia Campus, Georgetown, Penang, Malaysia,*Correspondence: Gobinath Ramachawolran, ; Ling Shing Wong, ; Mahendran Sekar,
| | - Ling Shing Wong
- Faculty of Health and Life Sciences, INTI International University, Nilai, Malaysia,*Correspondence: Gobinath Ramachawolran, ; Ling Shing Wong, ; Mahendran Sekar,
| | - Mahendran Sekar
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy and Health Sciences, Royal College of Medicine Perak, Universiti Kuala Lumpur, Ipoh, Perak, Malaysia,*Correspondence: Gobinath Ramachawolran, ; Ling Shing Wong, ; Mahendran Sekar,
| | - Siew Hua Gan
- School of Pharmacy, Monash University Malaysia, Subang Jaya, Malaysia
| | | | - S Seethalakshmi
- Department of Pharmacology, ESIC Medical College and PGIMSR, Chennai, Tamilnadu, India
| | - Srikanth Jeyabalan
- Department of Pharmacology, Sri Ramachandra Faculty of Pharmacy, Sri Ramachandra Institute of Higher Education and Research (DU), Chennai, Tamilnadu, India
| | | | - Suresh V. Chinni
- Department of Biochemistry, Faculty of Medicine, Bioscience, and Nursing, MAHSA University, Kuala Lumpur, Malaysia,Department of Periodontics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Chennai, India
| | - Nur Najihah Izzati Mat Rani
- Faculty of Pharmacy and Health Sciences, Royal College of Medicine Perak, Universiti Kuala Lumpur, Ipoh, Perak, Malaysia
| | - Shadma Wahab
- Department of Pharmacognosy, College of Pharmacy, King Khalid University, Abha, Saudi Arabia,Complementary and Alternative Medicine Unit, King Khalid University, Abha, Saudi Arabia
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Mssillou I, Bakour M, Slighoua M, Laaroussi H, Saghrouchni H, Ez-Zahra Amrati F, Lyoussi B, Derwich E. Investigation on wound healing effect of Mediterranean medicinal plants and some related phenolic compounds: A review. JOURNAL OF ETHNOPHARMACOLOGY 2022; 298:115663. [PMID: 36038091 DOI: 10.1016/j.jep.2022.115663] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 08/07/2022] [Accepted: 08/19/2022] [Indexed: 06/15/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The human skin constitutes a biological barrier against external stress and wounds can reduce the role of its physiological structure. In medical sciences, wounds are considered a major problem that requires urgent intervention. For centuries, medicinal plants have been used in the Mediterranean countries for many purposes and against wounds. AIM OF THIS REVIEW Provides an outlook on the Mediterranean medicinal plants used in wound healing. Furthermore, the wound healing effect of polyphenolic compounds and their chemical structures are also summarized. Moreover, we discussed the wound healing process, the structure of the skin, and the current therapies in wound healing. MATERIALS AND METHODS The search was performed in several databases such as ScienceDirect, PubMed, Google Scholar, Scopus, and Web of Science. The following Keywords were used individually and/or in combination: the Mediterranean, wound healing, medicinal plants, phenolic compounds, composition, flavonoid, tannin. RESULTS The wound healing process is distinguished by four phases, which are respectively, hemostasis, inflammation, proliferation, and remodeling. The Mediterranean medicinal plants are widely used in the treatment of wounds. The finding showed that eighty-nine species belonging to forty families were evaluated for their wound-healing effect in this area. The Asteraceae family was the most reported family with 12 species followed by Lamiaceae (11 species). Tunisia, Egypt, Morocco, and Algeria were the countries where these plants are frequently used in wound healing. In addition to medicinal plants, results showed that nineteen phenolic compounds from different classes are used in wound treatment. Tyrosol, hydroxytyrosol, curcumin, luteolin, chrysin, rutin, kaempferol, quercetin, icariin, morin, epigallocatechin gallate, taxifolin, silymarin, hesperidin, naringin, isoliquiritin, puerarin, genistein, and daidzein were the main compounds that showed wound-healing effect. CONCLUSION In conclusion, medicinal plants and polyphenolic compounds provide therapeutic evidence in wound healing and for the development of new drugs in this field.
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Affiliation(s)
- Ibrahim Mssillou
- Laboratory of Natural Substances, Pharmacology, Environment, Modeling, Health & Quality of Life (SNAMOPEQ), Faculty of Sciences Dhar El Mahraz, Sidi Mohamed Ben Abdellah University, Fez 30000, Morocco.
| | - Meryem Bakour
- Laboratory of Natural Substances, Pharmacology, Environment, Modeling, Health & Quality of Life (SNAMOPEQ), Faculty of Sciences Dhar El Mahraz, Sidi Mohamed Ben Abdellah University, Fez 30000, Morocco
| | - Meryem Slighoua
- Laboratory of Biotechnology, Health, Agrofood and Environment (LBEAS), Faculty of Sciences Dhar El Mahraz, Sidi Mohamed Ben Abdellah University, Fez, 30000, Morocco
| | - Hassan Laaroussi
- Laboratory of Natural Substances, Pharmacology, Environment, Modeling, Health & Quality of Life (SNAMOPEQ), Faculty of Sciences Dhar El Mahraz, Sidi Mohamed Ben Abdellah University, Fez 30000, Morocco
| | - Hamza Saghrouchni
- Department of Biotechnology, Institute of Natural and Applied Sciences, Çukurova University, 01330 Balcalı/Sarıçam, Adana, Turkey
| | - Fatima Ez-Zahra Amrati
- Laboratory of Biotechnology, Health, Agrofood and Environment (LBEAS), Faculty of Sciences Dhar El Mahraz, Sidi Mohamed Ben Abdellah University, Fez, 30000, Morocco
| | - Badiaa Lyoussi
- Laboratory of Natural Substances, Pharmacology, Environment, Modeling, Health & Quality of Life (SNAMOPEQ), Faculty of Sciences Dhar El Mahraz, Sidi Mohamed Ben Abdellah University, Fez 30000, Morocco
| | - Elhoussine Derwich
- Laboratory of Natural Substances, Pharmacology, Environment, Modeling, Health & Quality of Life (SNAMOPEQ), Faculty of Sciences Dhar El Mahraz, Sidi Mohamed Ben Abdellah University, Fez 30000, Morocco; Unity of GC/MS and GC, City of Innovation, Sidi Mohamed Ben Abdellah University, Fez, 30000, Morocco
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Abd Wahab MA, Mohd Yusof E, Ahmad R, Salleh MZ, Teh LK. Peri-implant Bone Healing: Its Basic Osteogenesis and Biomarkers. NOVEMBER ISSUE 2022; 18:324-331. [DOI: 10.47836/mjmhs.18.6.41] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
The continuous sequence of bone healing phases starts off with osteoconduction to the implant surface, depending on the migration of osteogenic cells. Osteoneogenesis ensues resulting in a mineralised interfacial matrix and is followed by bone remodelling to the implant interface at discrete sites. Dental implant drilling procedure and placement produce osseous defect which is filled by blood. Within seconds, blood proteins are adsorbed onto the implant surface and platelets are activated resulting in the release of cytokines and growth factors. Further platelet aggregation initiates osteoconduction to the surface, followed by osteoneogenesis, forming an extracellular matrix. Subsequently, remodelling creates a bone to implant interface which can be explained through distance and contact osteogenesis. The dental implant surface has been shown to influence osteoconduction by modifying protein properties and adsorption around the implant. Salivary biomarkers may be considered as a specific and sensitive diagnostic tool to detect these changes in protein expressions after implant placement. Thus, the purpose of this narrative review is to provide a detailed account of the bone healing mechanism associated with dental implant placement, as well as how the implant surface architecture and protein release play a role in bone healing, and the potential use of saliva to detect these biomarkers.
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Ghanaati S, Śmieszek-Wilczewska J, Al-Maawi S, Neff P, Zadeh HH, Sader R, Heselich A, Rutkowski JL. Solid PRF Serves as Basis for Guided Open Wound Healing of the Ridge after Tooth Extraction by Accelerating the Wound Healing Time Course-A Prospective Parallel Arm Randomized Controlled Single Blind Trial. Bioengineering (Basel) 2022; 9:661. [PMID: 36354572 PMCID: PMC9687199 DOI: 10.3390/bioengineering9110661] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 10/31/2022] [Accepted: 11/03/2022] [Indexed: 07/30/2023] Open
Abstract
Systematic evaluations regarding the influence of PRF in ridge sealing are still lacking. To the best of our knowledge, this is the first systemic randomized, controlled, clinical approach dealing with the potential of a systematic applied solid PRF on soft tissue socket healing of molar and premolar extraction sockets with evaluation for up to 90 days. Qualitative and quantitative image analysis showed that PRF contributed to a significantly faster ridge sealing, within the period of 7-10 days in both tooth types. This led to a visibly less contraction at the PRF-treated group sites at day 90. Patients' pain perception demonstrated no statistic significance between both groups (PRF vs. natural healing), but the patients in PRF group seemed to have had less pain throughout the observational period. It becomes evident that PRF is able to serve as a promotor of the secondary wound healing cascade. The guiding capacity of PRF accelerating the process of open ridge healing makes it possible to act as a natural growth factor drug delivery system, providing a more predictable guided open wound healing of the ridge with less contraction of the soft tissue, the latter being a key factor for the subsequent successful dental implantation and oral rehabilitation.
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Affiliation(s)
- Shahram Ghanaati
- FORM-Lab, Department for Oral, Cranio-Maxillofacial and Facial Plastic Surgery, Medical Center of the Goethe University Frankfurt, Goethe University, 60590 Frankfurt am Main, Germany
- Department of Dental Surgery, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, 40-027 Katowice, Poland
| | - Joanna Śmieszek-Wilczewska
- Department of Dental Surgery, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, 40-027 Katowice, Poland
| | - Sarah Al-Maawi
- FORM-Lab, Department for Oral, Cranio-Maxillofacial and Facial Plastic Surgery, Medical Center of the Goethe University Frankfurt, Goethe University, 60590 Frankfurt am Main, Germany
| | - Pauline Neff
- FORM-Lab, Department for Oral, Cranio-Maxillofacial and Facial Plastic Surgery, Medical Center of the Goethe University Frankfurt, Goethe University, 60590 Frankfurt am Main, Germany
| | - Homayoun H. Zadeh
- FORM-Lab, Department for Oral, Cranio-Maxillofacial and Facial Plastic Surgery, Medical Center of the Goethe University Frankfurt, Goethe University, 60590 Frankfurt am Main, Germany
- VISTA Institute for Therapeutic Innovations, Woodland Hills, CA 91367, USA
| | - Robert Sader
- FORM-Lab, Department for Oral, Cranio-Maxillofacial and Facial Plastic Surgery, Medical Center of the Goethe University Frankfurt, Goethe University, 60590 Frankfurt am Main, Germany
| | - Anja Heselich
- FORM-Lab, Department for Oral, Cranio-Maxillofacial and Facial Plastic Surgery, Medical Center of the Goethe University Frankfurt, Goethe University, 60590 Frankfurt am Main, Germany
| | - James L. Rutkowski
- Restorative Dentistry, School of Dental Medicine, State University of New York, Buffalo, NY 14214, USA
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Luo Y, Xu X, Ye Z, Xu Q, Li J, Liu N, Du Y. 3D bioprinted mesenchymal stromal cells in skin wound repair. Front Surg 2022; 9:988843. [PMID: 36311952 PMCID: PMC9614372 DOI: 10.3389/fsurg.2022.988843] [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: 07/07/2022] [Accepted: 09/20/2022] [Indexed: 11/07/2022] Open
Abstract
Skin tissue regeneration and repair is a complex process involving multiple cell types, and current therapies are limited to promoting skin wound healing. Mesenchymal stromal cells (MSCs) have been proven to enhance skin tissue repair through their multidifferentiation and paracrine effects. However, there are still difficulties, such as the limited proliferative potential and the biological processes that need to be strengthened for MSCs in wound healing. Recently, three-dimensional (3D) bioprinting has been applied as a promising technology for tissue regeneration. 3D-bioprinted MSCs could maintain a better cell ability for proliferation and expression of biological factors to promote skin wound healing. It has been reported that 3D-bioprinted MSCs could enhance skin tissue repair through anti-inflammatory, cell proliferation and migration, angiogenesis, and extracellular matrix remodeling. In this review, we will discuss the progress on the effect of MSCs and 3D bioprinting on the treatment of skin tissue regeneration, as well as the perspective and limitations of current research.
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Enhanced In Vivo Wound Healing Efficacy of a Novel Hydrogel Loaded with Copper (II) Schiff Base Quinoline Complex (CuSQ) Solid Lipid Nanoparticles. Pharmaceuticals (Basel) 2022; 15:ph15080978. [PMID: 36015126 PMCID: PMC9416780 DOI: 10.3390/ph15080978] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 07/30/2022] [Accepted: 07/31/2022] [Indexed: 11/16/2022] Open
Abstract
Wound dressings created using nanotechnology are known as suitable substrates to speed up the healing of both acute and chronic wounds. Therapeutic substances can be delivered using these materials. In this study, a hydrogel loaded with Cu (II) Schiff base 8-hydroxy quinoline complex (CuSQ) solid lipid nanoparticles (SLN) was formulated to investigate its wound healing potential in an excision wound healing model in rats. The CuSQ SLN were spherical shaped with sizes ranging from 111 to 202 nm and a polydispersity index (PDI) ranging from 0.43 to 0.76, encapsulation efficiency (EE) % between 85 and 88, and zeta potential (ZP) of −11.8 to −40 mV. The formulated hydrogel showed good homogeneity, good stability, and a pH of 6.4 which indicates no skin irritation and had no cytotoxicity on the human skin fibroblast (HSF) cell line. In the in vivo study, animals were placed in five groups: control, standard, plain hydrogel, low dose, and high dose of CuSQ hydrogel. Both doses of CuSQ showed significantly faster healing rates compared to standard and control rats. In addition, the histopathology study showed more collagen, improved angiogenesis, and intact re-epithelization with less inflammation. A significant increase in transforming growth factor-beta1 (TGF-β1) level and increased immune expression of vascular endothelial growth factor (VEGF) by CuSQ treatment validates its role in collagen synthesis, proliferation of fibroblasts and enhancement of angiogenesis. Matrix metalloproteinase-9 (MMP-9) was found to be significantly reduced after CuSQ treatment. Immunohistochemistry of tumor necrosis factor alpha (TNF-α) revealed a marked decrease in inflammation. Thus, we concluded that CuSQ would be a beneficial drug for cutaneous wound healing since it effectively accelerated wound healing through regulation of various cytokines and growth factors.
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In vitro evaluation of a synthetic (Biobrane®) and a biopolymer (Epicite) wound dressing with primary human juvenile and adult fibroblasts after different colonization strategies. Ann Anat 2022; 244:151981. [PMID: 35853533 DOI: 10.1016/j.aanat.2022.151981] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Revised: 05/30/2022] [Accepted: 07/07/2022] [Indexed: 01/08/2023]
Abstract
BACKGROUND The three-dimensional [3D] wound dressings Biobrane® and Epicite are used in the wound management. Fibroblasts are important for successful deep wound healing. The direct effect of Biobrane® and Epicite on human fibroblasts, particularly of juvenile individuals, remains unclear. Therefore, this study compared the survival and growth characteristics of juvenile and adult dermal fibroblasts on Biobrane® and Epicite using different culture models. METHOD Murine (L929), primary juvenile and adult human fibroblasts were seeded on both materials using two dimensional (2D, slide culture) or 3D culture at the medium-air interface and dynamical rotatory culture. Cell adherence, viability, morphology, actin cytoskeleton architecture and DNA content were monitored. Scanning electron microscopy (SEM) analyses could be only performed from Biobrane®. Permeability of both materials were tested. RESULTS The majority of all tested fibroblasts species survived on both dressings with no significant differences between 1 and 14 days. Juvenile and adult fibroblasts exerted typical fibroblast morphology with spindle-shaped cell bodies on the materials. SEM visualized morphological differences between murine and human fibroblasts on Biobrane®. Juvenile and adult fibroblasts colonized Biobrane® in rotatory culture after 7 days the most. The Biobrane® rotatory culture of L929 and juvenile fibroblasts showed after 7 days the significantly highest DNA amount. No major gender differences could be observed. Biobrane® had a higher permeability than Epicite. CONCLUSION Both wound dressing can be colonized by fibroblasts suggesting their high cytocompatibility. Fibroblast survival and morphology on Biobrane® and Epicite depended on the culture system and the fibroblast source.
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Hamidi M, Valentine Okoro O, Ianiri G, Jafari H, Rashidi K, Ghasemi S, Castoria R, Palmieri D, Delattre C, Pierre G, Mirzaei M, Nie L, Samadian H, Shavandi A. Exopolysaccharide from the yeast Papiliotrema terrestris PT22AV for skin wound healing. J Adv Res 2022; 46:61-74. [PMID: 35760297 PMCID: PMC10105244 DOI: 10.1016/j.jare.2022.06.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 06/09/2022] [Accepted: 06/21/2022] [Indexed: 11/27/2022] Open
Abstract
INTRODUCTION Exopolysaccharides (EPSs) are high-value functional biomaterials mainly produced by bacteria and fungi, with nutraceutical, therapeutic and industrial potentials. OBJECTIVES This study sought to characterize and assess the biological properties of the EPS produced by the yeast Papiliotrema terrestris PT22AV. METHODS After extracting the yeast's DNA and its molecular identification, the EPS from P. terrestris PT22AV strain was extracted and its physicochemical properties (structural, morphological, monosaccharide composition and molecular weight) were characterized. The EPS's in vitro biological activities and in vivo wound healing potential were also evaluated. RESULTS The obtained EPS was water-soluble and revealed an average molecular weight (Mw) of 202 kDa. Mannose and glucose with 97% and 3% molar percentages, respectively, constituted the EPS. In vitro antibacterial activity analysis of the extracted EPS exhibited antibacterial activity (>80%) against Escherichia coli, Staphylococcus aureus, and Staphylococcus epidermidis at a concentration of 2 mg/mL. The EPS showed cytocompatibility against the human fibroblast and macrophage cell lines and the animal studies showed a dose-dependent wound healing capacity of the EPS with higher wound closure at 10 mg/mL compared to negative and positive control after 14 days. CONCLUSION The EPS from P. terrestris PT22AV could serve as a promising source of biocompatible macromolecules with potential for skin wound healing.
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Affiliation(s)
- Masoud Hamidi
- Université libre de Bruxelles (ULB), École polytechnique de Bruxelles-BioMatter unit, Avenue F.D. Roosevelt, 50 - CP 165/61, 1050 Brussels, Belgium; Department of Medical Biotechnology, Faculty of Paramedicine, Guilan University of Medical Sciences, Rasht, Iran
| | - Oseweuba Valentine Okoro
- Université libre de Bruxelles (ULB), École polytechnique de Bruxelles-BioMatter unit, Avenue F.D. Roosevelt, 50 - CP 165/61, 1050 Brussels, Belgium
| | - Giuseppe Ianiri
- Dipartimento Agricoltura, Ambiente e Alimenti, Università degli Studi del Molise, Campobasso, Italy
| | - Hafez Jafari
- Université libre de Bruxelles (ULB), École polytechnique de Bruxelles-BioMatter unit, Avenue F.D. Roosevelt, 50 - CP 165/61, 1050 Brussels, Belgium
| | - Khodabakhsh Rashidi
- Research Center of Oils and Fats, Research Institute for Health Technology, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Saeed Ghasemi
- Department of Medicinal Chemistry, School of Pharmacy, Guilan University of Medical Sciences, Rasht, Iran
| | - Raffaello Castoria
- Dipartimento Agricoltura, Ambiente e Alimenti, Università degli Studi del Molise, Campobasso, Italy
| | - Davide Palmieri
- Dipartimento Agricoltura, Ambiente e Alimenti, Università degli Studi del Molise, Campobasso, Italy
| | - Cédric Delattre
- Université Clermont Auvergne, Clermont Auvergne INP, CNRS, Institut Pascal, F-63000 Clermont-Ferrand, France; Institut Universitaire de France (IUF), 1 rue Descartes, 75005 Paris, France
| | - Guillaume Pierre
- Université Clermont Auvergne, Clermont Auvergne INP, CNRS, Institut Pascal, F-63000 Clermont-Ferrand, France
| | - Mahta Mirzaei
- Université libre de Bruxelles (ULB), École polytechnique de Bruxelles-BioMatter unit, Avenue F.D. Roosevelt, 50 - CP 165/61, 1050 Brussels, Belgium
| | - Lei Nie
- College of Life Sciences, Xinyang Normal University, Xinyang 464000, China
| | - Hadi Samadian
- Department of Molecular Medicine, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran.
| | - Amin Shavandi
- Université libre de Bruxelles (ULB), École polytechnique de Bruxelles-BioMatter unit, Avenue F.D. Roosevelt, 50 - CP 165/61, 1050 Brussels, Belgium.
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12
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Vitale S, Colanero S, Placidi M, Di Emidio G, Tatone C, Amicarelli F, D’Alessandro AM. Phytochemistry and Biological Activity of Medicinal Plants in Wound Healing: An Overview of Current Research. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27113566. [PMID: 35684503 PMCID: PMC9182061 DOI: 10.3390/molecules27113566] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 05/28/2022] [Accepted: 05/30/2022] [Indexed: 12/12/2022]
Abstract
Wound healing is a complicated process, and the effective management of wounds is a major challenge. Natural herbal remedies have now become fundamental for the management of skin disorders and the treatment of skin infections due to the side effects of modern medicine and lower price for herbal products. The aim of the present study is to summarize the most recent in vitro, in vivo, and clinical studies on major herbal preparations, their phytochemical constituents, and new formulations for wound management. Research reveals that several herbal medicaments have marked activity in the management of wounds and that this activity is ascribed to flavonoids, alkaloids, saponins, and phenolic compounds. These phytochemicals can act at different stages of the process by means of various mechanisms, including anti-inflammatory, antimicrobial, antioxidant, collagen synthesis stimulating, cell proliferation, and angiogenic effects. The application of natural compounds using nanotechnology systems may provide significant improvement in the efficacy of wound treatments. Increasing the clinical use of these therapies would require safety assessment in clinical trials.
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Affiliation(s)
- Stefania Vitale
- Department of Life, Health and Environmental Sciences, University of L’Aquila, 67100 L’Aquila, Italy; (S.V.); (M.P.); (G.D.E.); (C.T.); (F.A.)
| | - Sara Colanero
- Department of Biosciences, University of Milan, Via Giovanni Celoria 26, 20133 Milan, Italy;
| | - Martina Placidi
- Department of Life, Health and Environmental Sciences, University of L’Aquila, 67100 L’Aquila, Italy; (S.V.); (M.P.); (G.D.E.); (C.T.); (F.A.)
| | - Giovanna Di Emidio
- Department of Life, Health and Environmental Sciences, University of L’Aquila, 67100 L’Aquila, Italy; (S.V.); (M.P.); (G.D.E.); (C.T.); (F.A.)
| | - Carla Tatone
- Department of Life, Health and Environmental Sciences, University of L’Aquila, 67100 L’Aquila, Italy; (S.V.); (M.P.); (G.D.E.); (C.T.); (F.A.)
| | - Fernanda Amicarelli
- Department of Life, Health and Environmental Sciences, University of L’Aquila, 67100 L’Aquila, Italy; (S.V.); (M.P.); (G.D.E.); (C.T.); (F.A.)
| | - Anna Maria D’Alessandro
- Department of Life, Health and Environmental Sciences, University of L’Aquila, 67100 L’Aquila, Italy; (S.V.); (M.P.); (G.D.E.); (C.T.); (F.A.)
- Correspondence:
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13
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Heydari MB, Ghanbari-Movahed Z, Heydari M, Farzaei MH. In vitro study of the mesenchymal stem cells-conditional media role in skin wound healing process: A systematic review. Int Wound J 2022; 19:2210-2223. [PMID: 35412017 DOI: 10.1111/iwj.13796] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 03/09/2022] [Indexed: 12/13/2022] Open
Abstract
Mesenchymal stromal cell (MSC)-conditioned medium (CM) offers a potential opportunity in the skin wound healing treatment. In this systematic review, an overview of the knowledge on this topic has been provided. A multistep search of the PubMed, Scopus and Science Direct database has been performed to identify papers on MSCs-conditional media used in skin wound healing. Eligibility checks were performed based upon predefined selection criteria. Of the 485 articles initially identified, consequently, only 96 articles apparently related to MSC-conditional media were initially assessed for eligibility. Finally, the 32 articles, strictly regarding the in vitro use of MSCs-conditional media in skin wounds, were analysed. The information analysed highlights the efficacy of MSCs-conditional media on skin wound healing in vitro models. The outcome of this review may be used to guide pre-clinical and clinical studies on the role of MSCs-conditional media in skin wound healing.
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Affiliation(s)
- Mohammad Bagher Heydari
- Specialist General Surgeon, Taleghani Hospital, Kermanshah University of Medical Sciences (KUMS), Kermanshah, Iran
| | - Zahra Ghanbari-Movahed
- Medical Biology Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Maryam Heydari
- Department of Pharmacy Zabol University of Medical Sciences, Zabol, Iran
| | - Mohammad Hosein Farzaei
- Medical Technology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
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14
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Merlo B, Baldassarro VA, Flagelli A, Marcoccia R, Giraldi V, Focarete ML, Giacomini D, Iacono E. Peptide Mediated Adhesion to Beta-Lactam Ring of Equine Mesenchymal Stem Cells: A Pilot Study. Animals (Basel) 2022; 12:ani12060734. [PMID: 35327131 PMCID: PMC8944785 DOI: 10.3390/ani12060734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 03/03/2022] [Accepted: 03/14/2022] [Indexed: 11/24/2022] Open
Abstract
Simple Summary In recent years, stem cell therapy has emerged as a promising potential treatment for chronic wounds in both human and veterinary medicine. Particularly, mesenchymal stem cells (MSCs) may be an attractive therapeutic tool for regenerative medicine and tissue engineering because these cells play a critical role in wound repair and tissue regeneration due to their immunosuppressive properties and multipotency. The use of biomaterials with integrin agonists could promote cell adhesion increasing tissue repair processes. This pilot study focuses on the adhesion ability of equine adult (adipose tissue) and fetal adnexa (Wharton’s jelly) derived MSCs mediated by GM18, an α4β1 integrin agonist, alone and combined with a biodegradable polymeric scaffold. Results show that a 24 h exposition to soluble GM18 affects equine MSCs adhesion ability with a donor-related variability and might suggest that WJ-MSCs more easily adhere to poly L-lactic acid (PLLA) nanofibers combined with GM18. These preliminary results need to be confirmed by further studies on the interactions between the different types of equine MSCs and GM18 incorporated PLLA scaffolds before drawing definitive conclusions on which cells and scaffolds could be successfully used for the treatment of decubitus ulcers. Abstract Regenerative medicine applied to skin lesions is a field in constant improvement. The use of biomaterials with integrin agonists could promote cell adhesion increasing tissue repair processes. The aim of this pilot study was to analyze the effect of an α4β1 integrin agonist on cell adhesion of equine adipose tissue (AT) and Wharton’s jelly (WJ) derived MSCs and to investigate their adhesion ability to GM18 incorporated poly L-lactic acid (PLLA) scaffolds. Adhesion assays were performed after culturing AT- and WJ-MSCs with GM18 coating or soluble GM18. Cell adhesion on GM18 containing PLLA scaffolds after 20 min co-incubation was assessed by HCS. Soluble GM18 affects the adhesion of equine AT- and WJ-MSCs, even if its effect is variable between donors. Adhesion to PLLA scaffolds containing GM18 is not significantly influenced by GM18 for AT-MSCs after 20 min or 24 h of culture and for WJ-MSCs after 20 min, but increased cell adhesion by 15% GM18 after 24 h. In conclusion, the α4β1 integrin agonist GM18 affects equine AT- and WJ-MSCs adhesion ability with a donor-related variability. These preliminary results represent a first step in the study of equine MSCs adhesion to PLLA scaffolds containing GM18, suggesting that WJ-MSCs might be more suitable than AT-MSCs. However, the results need to be confirmed by increasing the number of samples before drawing definite conclusions.
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Affiliation(s)
- Barbara Merlo
- Department of Veterinary Medical Sciences, University of Bologna, Via Tolara di Sopra, 50, 40064 Ozzano Emilia, BO, Italy; (V.A.B.); (E.I.)
- Interdepartmental Center for Industrial Research in Health Sciences and Technologies, University of Bologna, Via Tolara di Sopra, 41/E, 40064 Ozzano Emilia, BO, Italy; (A.F.); (R.M.); (V.G.); (M.L.F.); (D.G.)
- Correspondence:
| | - Vito Antonio Baldassarro
- Department of Veterinary Medical Sciences, University of Bologna, Via Tolara di Sopra, 50, 40064 Ozzano Emilia, BO, Italy; (V.A.B.); (E.I.)
- IRET Foundation, Via Tolara di Sopra, 41/E, 40064 Ozzano Emilia, BO, Italy
| | - Alessandra Flagelli
- Interdepartmental Center for Industrial Research in Health Sciences and Technologies, University of Bologna, Via Tolara di Sopra, 41/E, 40064 Ozzano Emilia, BO, Italy; (A.F.); (R.M.); (V.G.); (M.L.F.); (D.G.)
| | - Romina Marcoccia
- Interdepartmental Center for Industrial Research in Health Sciences and Technologies, University of Bologna, Via Tolara di Sopra, 41/E, 40064 Ozzano Emilia, BO, Italy; (A.F.); (R.M.); (V.G.); (M.L.F.); (D.G.)
| | - Valentina Giraldi
- Interdepartmental Center for Industrial Research in Health Sciences and Technologies, University of Bologna, Via Tolara di Sopra, 41/E, 40064 Ozzano Emilia, BO, Italy; (A.F.); (R.M.); (V.G.); (M.L.F.); (D.G.)
- Department of Chemistry “Giacomo Ciamician” and INSTM UdR of Bologna, University of Bologna, Via Selmi 2, 40126 Bologna, BO, Italy
| | - Maria Letizia Focarete
- Interdepartmental Center for Industrial Research in Health Sciences and Technologies, University of Bologna, Via Tolara di Sopra, 41/E, 40064 Ozzano Emilia, BO, Italy; (A.F.); (R.M.); (V.G.); (M.L.F.); (D.G.)
- Department of Chemistry “Giacomo Ciamician” and INSTM UdR of Bologna, University of Bologna, Via Selmi 2, 40126 Bologna, BO, Italy
| | - Daria Giacomini
- Interdepartmental Center for Industrial Research in Health Sciences and Technologies, University of Bologna, Via Tolara di Sopra, 41/E, 40064 Ozzano Emilia, BO, Italy; (A.F.); (R.M.); (V.G.); (M.L.F.); (D.G.)
- Department of Chemistry “Giacomo Ciamician” and INSTM UdR of Bologna, University of Bologna, Via Selmi 2, 40126 Bologna, BO, Italy
| | - Eleonora Iacono
- Department of Veterinary Medical Sciences, University of Bologna, Via Tolara di Sopra, 50, 40064 Ozzano Emilia, BO, Italy; (V.A.B.); (E.I.)
- Interdepartmental Center for Industrial Research in Health Sciences and Technologies, University of Bologna, Via Tolara di Sopra, 41/E, 40064 Ozzano Emilia, BO, Italy; (A.F.); (R.M.); (V.G.); (M.L.F.); (D.G.)
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Giaquinto-Cilliers MGC, Nair A, Von Pressentin KB, Coetzee F, Saeed H. A ‘game of dressings’: Strategies for wound management in primary health care. S Afr Fam Pract (2004) 2022; 64:e1-e8. [PMID: 35261259 PMCID: PMC8905468 DOI: 10.4102/safp.v64i1.5462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 01/26/2022] [Accepted: 01/27/2022] [Indexed: 11/25/2022] Open
Abstract
Wound care management and the dressing of wounds represent some of the most basic services offered in primary health care facilities across Southern Africa. Clinicians should have a basic understanding of the processes of wound healing and wound bed preparation to match the ideal cost-effective dressing to the particular type of wound to be managed. In the ‘kingdom of wounds’, the authors use a popular analogy and propose the best five strategies for the clinician in choosing the right management option in the ‘game of dressings’.
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Affiliation(s)
- Maria G C Giaquinto-Cilliers
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine, University of the Free State, Bloemfontein, South Africa; and, Department of Plastic and Reconstructive Surgery, Robert Mangaliso Sobukwe Hospital, Kimberley.
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16
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Composite Membrane Dressings System with Metallic Nanoparticles as an Antibacterial Factor in Wound Healing. MEMBRANES 2022; 12:membranes12020215. [PMID: 35207136 PMCID: PMC8876280 DOI: 10.3390/membranes12020215] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 01/26/2022] [Accepted: 02/09/2022] [Indexed: 02/04/2023]
Abstract
Wound management is the burning problem of modern medicine, significantly burdening developed countries’ healthcare systems. In recent years, it has become clear that the achievements of nanotechnology have introduced a new quality in wound healing. The application of nanomaterials in wound dressing significantly improves their properties and promotes the healing of injuries. Therefore, this review paper presents the subjectively selected nanomaterials used in wound dressings, including the metallic nanoparticles (NPs), and refers to the aspects of their application as antimicrobial factors. The literature review was supplemented with the results of our team’s research on the elements of multifunctional new-generation dressings containing nanoparticles. The wound healing multiple molecular pathways, mediating cell types, and affecting agents are discussed herein. Moreover, the categorization of wound dressings is presented. Additionally, some materials and membrane constructs applied in wound dressings are described. Finally, bacterial participation in wound healing and the mechanism of the antibacterial function of nanoparticles are considered. Membranes involving NPs as the bacteriostatic factors for improving wound healing of skin and bones, including our experimental findings, are discussed in the paper. In addition, some studies of our team concerning the selected bacterial strains’ interaction with material involving different metallic NPs, such as AuNPs, AgNPs, Fe3O4NPs, and CuNPs, are presented. Furthermore, nanoparticles’ influence on selected eukaryotic cells is mentioned. The ideal, universal wound dressing still has not been obtained; thus, a new generation of products have been developed, represented by the nanocomposite materials with antibacterial, anti-inflammatory properties that can influence the wound-healing process.
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Ji Y, Yang S, Zhou K, Rocliffe HR, Pellicoro A, Cash JL, Wang R, Li C, Huang Z. Deep-learning approach for automated thickness measurement of epithelial tissue and scab using optical coherence tomography. JOURNAL OF BIOMEDICAL OPTICS 2022; 27:015002. [PMID: 35043611 PMCID: PMC8765552 DOI: 10.1117/1.jbo.27.1.015002] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 11/23/2021] [Indexed: 10/29/2023]
Abstract
SIGNIFICANCE In order to elucidate therapeutic treatment to accelerate wound healing, it is crucial to understand the process underlying skin wound healing, especially re-epithelialization. Epidermis and scab detection is of importance in the wound healing process as their thickness is a vital indicator to judge whether the re-epithelialization process is normal or not. Since optical coherence tomography (OCT) is a real-time and non-invasive imaging technique that can perform a cross-sectional evaluation of tissue microstructure, it is an ideal imaging modality to monitor the thickness change of epidermal and scab tissues during wound healing processes in micron-level resolution. Traditional segmentation on epidermal and scab regions was performed manually, which is time-consuming and impractical in real time. AIM We aim to develop a deep-learning-based skin layer segmentation method for automated quantitative assessment of the thickness of in vivo epidermis and scab tissues during a time course of healing within a rodent model. APPROACH Five convolution neural networks were trained using manually labeled epidermis and scab regions segmentation from 1000 OCT B-scan images (assisted by its corresponding angiographic information). The segmentation performance of five segmentation architectures was compared qualitatively and quantitatively for validation set. RESULTS Our results show higher accuracy and higher speed of the calculated thickness compared with human experts. The U-Net architecture represents a better performance than other deep neural network architectures with 0.894 at F1-score, 0.875 at mean intersection over union, 0.933 at Dice similarity coefficient, and 18.28 μm at an average symmetric surface distance. Furthermore, our algorithm is able to provide abundant quantitative parameters of the wound based on its corresponding thickness maps in different healing phases. Among them, normalized epidermal thickness is recommended as an essential hallmark to describe the re-epithelialization process of the rodent model. CONCLUSIONS The automatic segmentation and thickness measurements within different phases of wound healing data demonstrates that our pipeline provides a robust, quantitative, and accurate method for serving as a standard model for further research into effect of external pharmacological and physical factors.
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Affiliation(s)
- Yubo Ji
- University of Dundee, School of Science and Engineering, Dundee, United Kingdom
| | - Shufan Yang
- Edinburgh Napier University, School of Computing, Edinburgh, United Kingdom
- University of Glasgow, Center of Medical and Industrial Ultrasonics, Glasgow, United Kingdom
| | - Kanheng Zhou
- University of Dundee, School of Science and Engineering, Dundee, United Kingdom
| | - Holly R. Rocliffe
- The University of Edinburgh, The Queen’s Medical Research Institute, MRC Centre for Inflammation Research, Edinburgh, United Kingdom
| | - Antonella Pellicoro
- The University of Edinburgh, The Queen’s Medical Research Institute, MRC Centre for Inflammation Research, Edinburgh, United Kingdom
| | - Jenna L. Cash
- The University of Edinburgh, The Queen’s Medical Research Institute, MRC Centre for Inflammation Research, Edinburgh, United Kingdom
| | - Ruikang Wang
- University of Washington, Department of Bioengineering, Seattle, Washington, United States
| | - Chunhui Li
- University of Dundee, School of Science and Engineering, Dundee, United Kingdom
| | - Zhihong Huang
- University of Dundee, School of Science and Engineering, Dundee, United Kingdom
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18
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Prognostic Evaluation of Pressure Sore Surgery Index: Risk Assessment and Outcomes of a Retrospective Cohort Study. Plast Reconstr Surg 2021; 149:483-493. [PMID: 34898527 DOI: 10.1097/prs.0000000000008766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
BACKGROUND Complication rates of up to 46 percent are reported following pressure sore surgery. Pressure sore patients often exhibit ineffective postoperative wound healing despite tension-free flap coverage, necessitating surgical revision and prolonged hospitalization. Rather than pressure sore recurrence, such impaired healing reflects a failed progress through the physiologic stages of the normal wound-healing cascade. The principal objective of the study reported here was to elucidate potentially modifiable inherent variables that predict predisposition to impaired healing and to provide a tool for identifying cases at risk for complicated early postoperative recovery following pressure sore reconstruction. METHODS A retrospective chart review of late-stage (stage 3 or higher) sacral and ischial pressure sore patients who underwent flap reconstruction from 2014 to 2019 was performed. A multivariable logistic regression model was used to identify key patient and operative factors predictive of impaired healing. Furthermore, the Prognostic Evaluation of Pressure Sore Surgery Index (PEPSI) was established based on the identified risk factors. RESULTS In a cohort of 121 patients, 36 percent exhibited impaired healing. Of these, 34 patients suffered from dehiscences, necessitating surgical revision. Statistically significant risk factors comprising late recurrence (OR, 3.8), immobility (OR, 12.4), greater surface (>5 cm diameter; OR, 7.3), and inhibited thrombocytes (aspirin monotherapy; OR, 5.7) were combined to formulate a prognostic scoring system (PEPSI-LIGhT). CONCLUSIONS The PEPSI-LIGhT system serves as a prognostic instrument for assessing individual risk for impaired healing in pressure sore patients. Preoperative risk stratification supports rational decision-making regarding operative candidacy, allows evidence-based patient counseling, and supports the implementation of individualized treatment protocols. CLINICAL QUESTION/LEVEL OF EVIDENCE Risk, III.
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19
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Bazmakdar E, Moghimipour E, Karampour NS, Rezaie A, Nabavi SMB. Evaluation of Wound Healing Activity of Sea Cucumber Holothuria parva Hydroalcoholic Extract in Rat. INT J LOW EXTR WOUND 2021:15347346211059331. [PMID: 34791922 DOI: 10.1177/15347346211059331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
A significant challenge in biomedicine is the development of Biomaterials with the potential to accelerate wound healing. The aim of this study was to investigate the effect of the gel prepared from sea cucumber on wound healing in rats. Full-thickness wounds were created in male rats divided into five experimental groups, negative control (NC), positive control (PC), and treatments. The NC and PC groups received respectively gel base and phenytoin cream 1%. Treatment groups were treated topically by gels of 1%, 3%, and 5% Holothuria parva extract (HPE) in the gel base. The rats were sacrificed on days 7, 14, and 21. Pathological reports revealed the proliferation of keratinocytes in the borders of the wound in treatment groups and controls. Formation of granulation tissue was seen on day 7 in treatment groups, collagen fibers in granulation tissue were randomly organized, and the rate of fibroblast decreased. Results showed that there were statistically significant differences in wound contraction between all groups in comparison to the NC group (P < .05) on day 8. It was concluded that the 1% HPE gel has a good potential for promoting wound healing. [Formula: see text].
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Affiliation(s)
- Elnaz Bazmakdar
- 394243Marine Pharmaceutical Science Research Center, Department of Pharmacognosy, Faculty of Pharmacy, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Eskandar Moghimipour
- 108836Nanotechnology Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Marine Pharmaceutical Science Research Center, Department of Pharmaceutics, Faculty of Pharmacy, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Neda Sistani Karampour
- Marine Pharmaceutical Science Research Center, Department of Pharmacology, Faculty of Pharmacy, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Annahita Rezaie
- Department of Pathobiology, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Seyed Mohammad Bagher Nabavi
- 394243Marine Pharmaceutical Science Research Center, Department of Pharmacognosy, Faculty of Pharmacy, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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20
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Blanchard AM, Staley CE, Shaw L, Wattegedera SR, Baumbach CM, Michler JK, Rutland C, Back C, Newbold N, Entrican G, Tötemeyer S. A Trifecta of New Insights into Ovine Footrot for Infection Drivers, Immune Response, and Host-Pathogen Interactions. Infect Immun 2021; 89:e0027021. [PMID: 34227837 PMCID: PMC8445190 DOI: 10.1128/iai.00270-21] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 06/16/2021] [Indexed: 12/02/2022] Open
Abstract
Footrot is a polymicrobial infectious disease in sheep causing severe lameness, leading to one of the industry's largest welfare problems. The complex etiology of footrot makes in situ or in vitro investigations difficult. Computational methods offer a solution to understanding the bacteria involved and how they may interact with the host, ultimately providing a way to identify targets for future hypothesis-driven investigative work. Here, we present the first combined global analysis of bacterial community transcripts together with the host immune response in healthy and diseased ovine feet during a natural polymicrobial infection state using metatranscriptomics. The intratissue and surface bacterial populations and the most abundant bacterial transcriptomes were analyzed, demonstrating that footrot-affected skin has reduced diversity and increased abundances of not only the causative bacterium Dichelobacter nodosus but also other species such as Mycoplasma fermentans and Porphyromonas asaccharolytica. Host transcriptomics reveals the suppression of biological processes related to skin barrier function, vascular functions, and immunosurveillance in unhealthy interdigital skin, supported by histological findings that type I collagen (associated with scar tissue formation) is significantly increased in footrot-affected interdigital skin compared to outwardly healthy skin. Finally, we provide some interesting indications of host and pathogen interactions associated with virulence genes and the host spliceosome, which could lead to the identification of future therapeutic targets.
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Affiliation(s)
- Adam M. Blanchard
- School of Veterinary Medicine and Science, University of Nottingham, Loughborough, Leicestershire, United Kingdom
| | - Ceri E. Staley
- School of Veterinary Medicine and Science, University of Nottingham, Loughborough, Leicestershire, United Kingdom
| | - Laurence Shaw
- School of Science and Technology, Nottingham Trent University, Nottingham, United Kingdom
| | - Sean R. Wattegedera
- Moredun Research Institute, Pentlands Science Park, Bush Loan, Penicuik, Midlothian, Scotland
| | - Christina-Marie Baumbach
- Institute of Anatomy, Histology and Embryology, Faculty of Veterinary Medicine, Leipzig University, Leipzig, Germany
| | - Jule K. Michler
- Institute of Anatomy, Histology and Embryology, Faculty of Veterinary Medicine, Leipzig University, Leipzig, Germany
| | - Catrin Rutland
- School of Veterinary Medicine and Science, University of Nottingham, Loughborough, Leicestershire, United Kingdom
| | - Charlotte Back
- School of Veterinary Medicine and Science, University of Nottingham, Loughborough, Leicestershire, United Kingdom
| | - Nerissa Newbold
- School of Veterinary Medicine and Science, University of Nottingham, Loughborough, Leicestershire, United Kingdom
| | - Gary Entrican
- Moredun Research Institute, Pentlands Science Park, Bush Loan, Penicuik, Midlothian, Scotland
| | - Sabine Tötemeyer
- School of Veterinary Medicine and Science, University of Nottingham, Loughborough, Leicestershire, United Kingdom
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The Effect of Amino Acids on Wound Healing: A Systematic Review and Meta-Analysis on Arginine and Glutamine. Nutrients 2021; 13:nu13082498. [PMID: 34444657 PMCID: PMC8399682 DOI: 10.3390/nu13082498] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 07/16/2021] [Accepted: 07/20/2021] [Indexed: 01/08/2023] Open
Abstract
Under stress conditions, the metabolic demand for nutrients increases, which, if not met, may slow down or indeed stop the wound from healing, thus, becoming chronic wounds. This study aims to perform a systematic review and meta-analysis of the effect of arginine and glutamine supplementation on wound healing. PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines were followed for the systematic review and ten electronic databases were used. Five and 39 human studies met the inclusion criteria for arginine and glutamine, respectively. The overall meta-analysis demonstrated a significant effect of arginine supplementation on hydroxyproline content (MD: 4.49, 95% CI: 3.54, 4.45, p < 0.00001). Regarding glutamine supplementation, there was significant effect on nitrogen balance levels (MD: 0.39, 95% CI: 0.21, 0.58, p < 0.0001), IL-6 levels (MD: −5.78, 95% CI: −8.71, −2.86, p = 0.0001), TNFα levels (MD: −8.15, 95% CI: −9.34, −6.96, p < 0.00001), lactulose/mannitol (L/M) ratio (MD: −0.01, 95% CI: −0.02, −0.01, p < 0.00001), patient mortality (OR: 0.48, 95% CI: 0.32, 0.72, p = 0.0004), C-reactive protein (CRP) levels (MD: −1.10, 95% CI: −1.26, −0.93, p < 0.00001) and length of hospital stay (LOS) (MD: −2.65, 95% CI: −3.10, −2.21, p < 0.00001). Regarding T-cell lymphocytes, a slight decrease was observed, although it failed to reach significance (MD: −0.16, 95% CI: −0.33, 0.01, p = 0.07). Conclusion: The wound healing might be enhanced in one or at various stages by nutritional supplementation in the right dose.
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Yang GH, Lee YB, Kang D, Choi E, Nam Y, Lee KH, You HJ, Kang HJ, An SH, Jeon H. Overcome the barriers of the skin: exosome therapy. Biomater Res 2021; 25:22. [PMID: 34217362 PMCID: PMC8254055 DOI: 10.1186/s40824-021-00224-8] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 06/23/2021] [Indexed: 01/06/2023] Open
Abstract
Exosomes are nano-sized cargos with a lipid bilayer structure carrying diverse biomolecules including lipids, proteins, and nucleic acids. These small vesicles are secreted by most types of cells to communicate with each other. Since exosomes circulate through bodily fluids, they can transfer information not only to local cells but also to remote cells. Therefore, exosomes are considered potential biomarkers for various treatments. Recently, studies have shown the efficacy of exosomes in skin defects such as aging, atopic dermatitis, and wounds. Also, exosomes are being studied to be used as ingredients in commercialized skin treatment products. In this review, we discussed the need for exosomes in skin therapy together with the current challenges. Moreover, the functional roles of exosomes in terms of skin treatment and regeneration are overviewed. Finally, we highlighted the major limitations and the future perspective in exosome engineering.
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Affiliation(s)
- Gi Hoon Yang
- Research Institute of Additive Manufacturing and Regenerative Medicine, Baobab Healthcare Inc., 55 Hanyangdaehak-Ro, Ansan-si, Gyeonggi-Do, 15588, South Korea
| | - Yoon Bum Lee
- Laboratory Animal Center, Daegu-Gyeongbuk Medical Innovation Foundation (DGMIF), 80 Cheombok-ro, Dong-gu, Daegu, 41061, South Korea
| | - Donggu Kang
- Research Institute of Additive Manufacturing and Regenerative Medicine, Baobab Healthcare Inc., 55 Hanyangdaehak-Ro, Ansan-si, Gyeonggi-Do, 15588, South Korea
| | - Eunjeong Choi
- Research Institute of Additive Manufacturing and Regenerative Medicine, Baobab Healthcare Inc., 55 Hanyangdaehak-Ro, Ansan-si, Gyeonggi-Do, 15588, South Korea
| | - Yoonju Nam
- Research Institute of Additive Manufacturing and Regenerative Medicine, Baobab Healthcare Inc., 55 Hanyangdaehak-Ro, Ansan-si, Gyeonggi-Do, 15588, South Korea
| | - Kyoung Ho Lee
- Laboratory Animal Center, Daegu-Gyeongbuk Medical Innovation Foundation (DGMIF), 80 Cheombok-ro, Dong-gu, Daegu, 41061, South Korea
| | - Hi-Jin You
- Department of Plastic Surgery, Korea University Ansan Hospital, 123 Jeokgeum-ro, Danwon-gu, Ansan-si, Gyeonggi-Do, 15355, South Korea
| | - Hyo Jin Kang
- Biomedical Research Center, Korea University Ansan Hospital, 123 Jeokgeum-ro, Danwon-gu, Ansan-si, Gyeonggi-Do, 15355, South Korea
| | - Sang Hyun An
- Laboratory Animal Center, Daegu-Gyeongbuk Medical Innovation Foundation (DGMIF), 80 Cheombok-ro, Dong-gu, Daegu, 41061, South Korea.
| | - Hojun Jeon
- Research Institute of Additive Manufacturing and Regenerative Medicine, Baobab Healthcare Inc., 55 Hanyangdaehak-Ro, Ansan-si, Gyeonggi-Do, 15588, South Korea.
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Choosing the Optimal Wound Dressing for Bathing After Total Knee Arthroplasty. J Arthroplasty 2021; 36:970-977. [PMID: 33046327 DOI: 10.1016/j.arth.2020.09.023] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2020] [Revised: 09/13/2020] [Accepted: 09/16/2020] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND Many surgical dressings claim to be waterproof and safe for bathing postoperatively. The purpose of this study is to evaluate and compare the effectiveness of commonly used dressings' ability to prevent water penetration while bathing. Additionally, a survey was used to determine satisfaction and cost analysis performed. METHODS Four different dressings were applied to 17 subjects' knees: Aquacel, Opsite, Acticoat, and Tegaderm. A folded Medline Gauze Sponge was weighed and placed under each dressing before and after showering and bathing (submergence under water) in order to measure water penetration (change in weight of sponge in grams). A failure was defined as any dressing that allowed a sponge weight change greater than 1 standard deviation, or 3.9 g. All participants were additionally asked to complete a short survey after testing about the dressings. RESULTS Tegaderm was found to have significantly less water penetration than all other dressings except Aquacel and demonstrated no failures with showering, significantly less than all other dressings. Tegaderm was also found to have significantly less water penetration than all other dressings except Acticoat with bathing and had significantly less failures than all other dressings. Furthermore, Tegaderm was found to be the most comfortable and lowest cost per dressing. CONCLUSION Tegaderm was overall the most effective at preventing water penetration, most comfortable, and most cost-effective. Aquacel was found to be equally as effective at preventing water penetration while showering but overall had more water penetration, had more failures, caused more discomfort, and was more expensive.
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Salimi F, Mohammadipanah F. Nanomaterials Versus The Microbial Compounds With Wound Healing Property. FRONTIERS IN NANOTECHNOLOGY 2021. [DOI: 10.3389/fnano.2020.584489] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Age and diabetes related slow-healing or chronic wounds may result in morbidity and mortality through persistent biofilms infections and prolonged inflammatory phase. Nano-materials [metal/metal oxide NPs (39%), lipid vehicles (21%), polymer NPs (19%), ceramic nanoparticles (NPs) (14%), and carbon nanomaterials (NMs) (7%)] can be introduced as a possible next-generation therapy because of either their intrinsic wound healing activity or via carrying bioactive compounds including, antibiotics, antioxidants, growth factor or stem cell. The nanomaterials have been shown to implicate in all four stages of wound healing including hemostasis (polymer NPs, ceramic NPs, nanoceria-6.1%), inflammation (liposome/vesicles/solid lipid NPs/polymer NPs/ceramic NPs/silver NPs/gold NPs/nanoceria/fullerenes/carbon-based NPs-32.7%), proliferation (vesicles/liposome/solid lipid NPs/gold NPs/silver NPs/iron oxide NPs/ceramic NPs/copper NPs/self-assembling elastin-like NPs/nanoceria/micelle/dendrimers/polymer NPs-57.1%), remodeling (iron oxide NPs/nanoceria-4.1%). Natural compounds from alkaloids, flavonoids, retinoids, volatile oil, terpenes, carotenoids, or polyphenolic compounds with proven antioxidant, anti-inflammatory, immunomodulatory, or antimicrobial characteristics are also well known for their potential to accelerate the wound healing process. In the current paper, we survey the potential and properties of nanomaterials and microbial compounds in improving the process of wound and scar healing. Finally, we review the potential biocompounds for incorporation to nano-material in perspective to designate more effective or multivalent wound healing natural or nano-based drugs.
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Hou Y, Li J, Guan S, Witte F. The therapeutic potential of MSC-EVs as a bioactive material for wound healing. ENGINEERED REGENERATION 2021. [DOI: 10.1016/j.engreg.2021.11.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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Gradišnik L, Milojević M, Velnar T, Maver U. Isolation, characterisation and phagocytic function of human macrophages from human peripheral blood. Mol Biol Rep 2020; 47:6929-6940. [PMID: 32876844 DOI: 10.1007/s11033-020-05751-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Accepted: 08/28/2020] [Indexed: 10/23/2022]
Abstract
Macrophages are among the most important cells of the immune system. Among other functions, they take part in almost all defense actions against foreign bodies and bacteria, being particularly important in infections, wound healing, and foreign body reactions. Considering their importance for the health of the human body, as well as their important role in several diseases, the in vitro studies based on these cells, are a crucial research field. Taking all mentioned into account, this study describes a simple isolation method of human macrophages (MFUM-HMP-001 and MFUM-HMP-002 cell lines) from peripheral blood. For this purpose, the morphology, the viability, and the phagocytotic activity of the isolated cells were tested. The Immunostaining of MFUM-HMP-001 and MFUM-HMP-002 cells confirmed the macrophage cell markers CD68, CD80, and CD163/M130. The phagocytotic activity was marked in both MFUM-HMP-001 and MFUM-HMP-002 cells, as was the phagocytosis of the pHrodo green Escherichia coli bioparticles conjugates, which was enhanced with the addition of lipopolysaccharide. The cells were stable and exhibited good growth. According to our results, both cell lines are useful for the development of novel macrophage cell-based in vitro models.
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Affiliation(s)
- Lidija Gradišnik
- Faculty of Medicine, Institute of Biomedical Sciences, University of Maribor, Taborska ulica 8, 2000, Maribor, Slovenia.,AMEU-ECM Maribor, Slovenska 17, 2000, Maribor, Slovenia
| | - Marko Milojević
- Faculty of Medicine, Institute of Biomedical Sciences, University of Maribor, Taborska ulica 8, 2000, Maribor, Slovenia
| | - Tomaž Velnar
- Faculty of Medicine, Institute of Biomedical Sciences, University of Maribor, Taborska ulica 8, 2000, Maribor, Slovenia. .,AMEU-ECM Maribor, Slovenska 17, 2000, Maribor, Slovenia. .,Department of Neurosurgery, University Medical Centre Ljubljana, Zaloska cesta 2, Ljubljana, Slovenia.
| | - Uroš Maver
- Faculty of Medicine, Institute of Biomedical Sciences, University of Maribor, Taborska ulica 8, 2000, Maribor, Slovenia. .,Faculty of Medicine, Department of Pharmacology, University of Maribor, Taborska ulica 8, 2000, Maribor, Slovenia.
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Effects of Percutaneous Collagen Induction Therapy Associated with Hyaluronic Acid on Inflammatory Response, Oxidative Stress, and Collagen Production. Inflammation 2020; 43:2232-2244. [PMID: 32647956 DOI: 10.1007/s10753-020-01291-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Percutaneous collagen induction (PCI) is an alternative treatment for skin dysfunctions, it aims to stimulate collagen production by encouraging normal wound healing that occurs after any trauma by inducing microlesions; also it may be potentiated with the association with drugs such as hyaluronic acid (HA). Our objective was to evaluate the effects of PCI associated with hyaluronic acid (0.9%) on inflammatory process, oxidative stress, and collagen production in rat epidermis. For the study, 36 adult Wistar rats were randomly divided into 6 groups (n = 6): Control; PCI 0.5; PCI 1.0; HA; PCI 0.5 + HA; and PCI 1.0 + HA. The animals were anesthetized, trichotomized, and the application of therapies was performed once; After 7 days, the animals were euthanized for removal of the skin region. Levels of pro-inflammatory (IL1, IL6, TNFα), anti-inflammatory (IL4 and IL10) cytokines and growth factors (FGF, TGFβ) were evaluated, besides oxidative stress parameters and histological analysis. In combination groups, there is a decrease in TNFα compared with the control and PCI groups in contrast to a significant increase in anti-inflammatory cytokines and growth factors. Oxidant and oxidative damage levels showed a significant decrease in PCI + HA groups in relation to PCI groups while antioxidant defense increased in PCI + HA groups compared with the control group. The number of fibroblasts was increased in the PCI 1.0 group in relation to the control, HA, and PCI 0.5. The number of blood vessels and collagen area was increased in groups PCI and PCI + HA compared with the HA group. We conclude that the combination of PCI with HA is able to accelerate the acute inflammatory process, reducing its deleterious effects and anticipating the chronic response, contributing to tissue repair.
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Zhang T, Zhang F, Chen Z, Cheng X. Comparison of early and delayed removal of dressing following primary closure of clean and contaminated surgical wounds: A systematic review and meta-analysis of randomized controlled trials. Exp Ther Med 2020; 19:3219-3226. [PMID: 32266018 PMCID: PMC7132221 DOI: 10.3892/etm.2020.8591] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Accepted: 12/10/2019] [Indexed: 11/09/2022] Open
Abstract
The usefulness of dressing a surgical wound beyond the first 24-48 h of surgery is currently a controversial issue. The aim of this meta-analysis was to compare the early and delayed removal of dressing following primary closure in the management of clean and contaminated surgical wounds. Systematic searches were conducted in various databases including Medline, Cochrane Controlled Register of Trials (CENTRAL), Scopus, and Embase from January, 1964 until October, 2019. We used the Cochrane risk of bias tool to assess the quality of published trials. We carried out a meta-analysis with random-effects model and reported pooled risk ratios (RR) with 95% confidence intervals (CIs). In total, we analysed 10 studies with 1,708 participants. All the studies were randomized controlled trials, while the majority of studies had unclear or high bias risks. Early dressing removal was favoured with respect to surgical site infection (pooled RR=0.89; 95% CI: 0.61 to 1.29), patient's perception on safety (pooled RR=0.60; 95% CI: 0.48 to 0.76) and comfort (pooled RR=0.95; 95% CI: 0.74 to 1.22), while the remaining outcomes favoured delayed dressing removal. However, none of the factors had statistically significant difference between two interventions except the patient's perception on safety. To summarize, delayed removal of dressing is not superior to early removal following primary closure of clean or clean-contaminated surgical wounds.
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Affiliation(s)
| | - Fujie Zhang
- Wound Treatment Center, Tianjin 300450, P.R. China
| | - Zongnan Chen
- Department of General Surgery, Tianjin Fifth Central Hospital, Tianjin 300450, P.R. China
| | - Xiuling Cheng
- Department of Nursing, Tianjin Fifth Central Hospital, Tianjin 300450, P.R. China
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Al-Houraibi RK, Aalirezaie A, Adib F, Anoushiravani A, Bhashyam A, Binlaksar R, Blevins K, Bonanzinga T, Chih-Kuo F, Cordova M, Deirmengian GK, Fillingham Y, Frenkel T, Gomez J, Gundtoft P, Harris MA, Harris M, Heller S, Jennings JA, Jiménez-Garrido C, Karam JA, Khlopas A, Klement MR, Komnos G, Krebs V, Lachiewicz P, Miller AO, Mont MA, Montañez E, Romero CA, Schwarzkopf R, Shaffer A, Sharkey PF, Smith BM, Sodhi N, Thienpont E, Villanueva AO, Yazdi H. General Assembly, Prevention, Wound Management: Proceedings of International Consensus on Orthopedic Infections. J Arthroplasty 2019; 34:S157-S168. [PMID: 30360978 DOI: 10.1016/j.arth.2018.09.066] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
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Avazi DO, Awasum AC, Hassan AZ, Ayo JO, Aluwong T, Muhammed ST, Simon AY, Suleiman MH, Kudi AC. Evaluation of levels of interleukin-6, interleukin-8 and some haematologic parameters of dogs with cutaneous wounds. Cytokine 2018; 113:128-138. [PMID: 30539777 DOI: 10.1016/j.cyto.2018.06.024] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 06/08/2018] [Accepted: 06/18/2018] [Indexed: 11/28/2022]
Abstract
The aim of the study was to investigate the time-course of serum and wound fluids interleukin (IL)-6 and IL-8 levels in dogs with cutaneous wounds and their relationship with some haematologic parameters. The experimental group comprised of six adult dogs that underwent surgery with wounds (n = 6) on the mid lateral aspect of the right antebrachium; and control group of six, apparently, healthy intact (free from cutaneous wounds) adult dogs, comprising equal number of both sexes. Vital signs evaluated were within normal limits. Samples of blood, serum and wound fluids harvested pre- and at 12 h, 36 h, 60 h, 156 h and 324 h post-injury, were utilised for IL-6 and IL-8 assay and haematology. Peak concentrations of IL-6 in wound fluid (1.33. ± 0.33 ng/mL) and serum (0.82 ± 0.24 ng/mL) of the experimental group at 12 h post-operation were higher (P < 0.01) than the control (0.30 ± 0.05 ng/mL). Concentrations of IL-8 at 12 h and 60 h in wound fluid (0.21 ± 0.05 ng/mL and 0.22 ± 0.11 ng/mL) respectively were lower (P < 0.05) than serum (0.71 ± 0.21 ng/mL and 0.73 ± 0.24 ng/mL) respectively in the experimental group and corresponding values recorded in controls (0.34 ± 0.09 ng/mL and 0.36 ± 0.14 ng/mL). The haematological and biochemical parameters exhibited minimum fluctuations, but values were within normal ranges. Significant correlations were obtained between serum and wound fluid IL-6 (r = 0.827, P < 0.05); wound fluid IL-6 and monocyte count (r = 0.818, P < 0.04); wound fluid IL-6 and haematocrit (r = -0.894, P < 0.05). There was a positive correlation between serum IL-8 and serum IL-6 (r = 0.622, P > 0.05) and serum IL-8 and wound fluid IL-8 (r = 0.718, P > 0.05) in the experimental group. In conclusion, IL-6 and IL-8 exerted modulated inflammatory processes following cutaneous wounds in dogs. Further studies are required to investigate the expression patterns of IL-6 and IL-8 in cutaneous wounds in order to improve the quality of management of cutaneous wounds.
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Affiliation(s)
| | | | | | | | - Tagang Aluwong
- Department of Veterinary Physiology, ABU, Zaria, Nigeria
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The early signaling pathway of live yeast cell derivative in THP-1 monocytes. Cell Calcium 2018; 73:112-120. [PMID: 29734114 DOI: 10.1016/j.ceca.2018.04.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2018] [Revised: 04/05/2018] [Accepted: 04/18/2018] [Indexed: 11/24/2022]
Abstract
Live yeast cell derivative (LYCD) is a medicinal yeast extract that has been used in the treatment of burns, wounds and hemorrhoids for over 70 years. It has been shown to enhance the closure of skin wounds in diabetic mice by increasing inflammation, angiogenesis, formation of granulation tissue and epithelial migration. An active fraction of LYCD has been identified as a mixture of peptides ranging in size from 5 kDA to 17 kDA. Despite its widespread use over many years, understanding of the mechanism by which LYCD acts to effect tissue repair responses is very limited. In this study, we have used a human monocyte-derived cell line, THP-1, as a representative of the inflammatory component of the wound healing process. We have identified two of the earliest responses to LYCD as an increase in cytoplasmic free calcium ([Ca2+]i) and the transcripts for c-fos. We have found that the increase in [Ca2+]i is both necessary and sufficient to account for the LYCD-induced elevation of c-fos. Furthermore, we have shown that the signaling pathway by which LYCD elevates [Ca2+]i involves both mobilization of Ca2+ from intracellular stores and influx of Ca2+ from the extracellular medium. Mobilization of store Ca2+ occurs first via activation of phospholipase C and this is followed by influx through activation of store operated calcium channels. These results constitute the first delineation of the early steps of the LYCD signaling pathway.
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Rosado MM, Simkó M, Mattsson MO, Pioli C. Immune-Modulating Perspectives for Low Frequency Electromagnetic Fields in Innate Immunity. Front Public Health 2018; 6:85. [PMID: 29632855 PMCID: PMC5879099 DOI: 10.3389/fpubh.2018.00085] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Accepted: 03/05/2018] [Indexed: 12/21/2022] Open
Abstract
In recent years, the effects of electromagnetic fields (EMFs) on the immune system have received a considerable interest, not only to investigate possible negative health impact but also to explore the possibility to favorably modulate immune responses. To generate beneficial responses, the immune system should eradicate pathogens while “respecting” the organism and tolerating irrelevant antigens. According to the current view, damage-associated molecules released by infected or injured cells, or secreted by innate immune cells generate danger signals activating an immune response. These signals are also relevant to the subsequent activation of homeostatic mechanisms that control the immune response in pro- or anti-inflammatory reactions, a feature that allows modulation by therapeutic treatments. In the present review, we describe and discuss the effects of extremely low frequency (ELF)-EMF and pulsed EMF on cell signals and factors relevant to the activation of danger signals and innate immunity cells. By discussing the EMF modulating effects on cell functions, we envisage the use of EMF as a therapeutic agent to regulate immune responses associated with wound healing.
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Affiliation(s)
| | | | - Mats-Olof Mattsson
- AIT Austrian Institute of Technology, Center for Energy, Environmental Resources and Technologies, Tulln, Austria
| | - Claudio Pioli
- Laboratory of Biomedical Technologies, Division of Health Protection Technologies, ENEA, Rome, Italy
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Mir M, Ali MN, Barakullah A, Gulzar A, Arshad M, Fatima S, Asad M. Synthetic polymeric biomaterials for wound healing: a review. Prog Biomater 2018; 7:1-21. [PMID: 29446015 PMCID: PMC5823812 DOI: 10.1007/s40204-018-0083-4] [Citation(s) in RCA: 236] [Impact Index Per Article: 39.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2017] [Accepted: 01/27/2018] [Indexed: 12/21/2022] Open
Abstract
Wounds are of a variety of types and each category has its own distinctive healing requirements. This realization has spurred the development of a myriad of wound dressings, each with specific characteristics. It is unrealistic to expect a singular dressing to embrace all characteristics that would fulfill generic needs for wound healing. However, each dressing may approach the ideal requirements by deviating from the 'one size fits all approach', if it conforms strictly to the specifications of the wound and the patient. Indeed, a functional wound dressing should achieve healing of the wound with minimal time and cost expenditures. This article offers an insight into several different types of polymeric materials clinically used in wound dressings and the events taking place at cellular level, which aid the process of healing, while the biomaterial dressing interacts with the body tissue. Hence, the significance of using synthetic polymer films, foam dressings, hydrocolloids, alginate dressings, and hydrogels has been reviewed, and the properties of these materials that conform to wound-healing requirements have been explored. A special section on bioactive dressings and bioengineered skin substitutes that play an active part in healing process has been re-examined in this work.
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Affiliation(s)
- Mariam Mir
- Biomedical Engineering and Sciences Department, School of Mechanical and Manufacturing Engineering (SMME), National University of Sciences and Technology (NUST), Sector H-12, Islamabad, Pakistan
| | - Murtaza Najabat Ali
- Biomedical Engineering and Sciences Department, School of Mechanical and Manufacturing Engineering (SMME), National University of Sciences and Technology (NUST), Sector H-12, Islamabad, Pakistan.
| | - Afifa Barakullah
- Biomedical Engineering and Sciences Department, School of Mechanical and Manufacturing Engineering (SMME), National University of Sciences and Technology (NUST), Sector H-12, Islamabad, Pakistan
| | - Ayesha Gulzar
- Biomedical Engineering and Sciences Department, School of Mechanical and Manufacturing Engineering (SMME), National University of Sciences and Technology (NUST), Sector H-12, Islamabad, Pakistan
| | - Munam Arshad
- Biomedical Engineering and Sciences Department, School of Mechanical and Manufacturing Engineering (SMME), National University of Sciences and Technology (NUST), Sector H-12, Islamabad, Pakistan
| | - Shizza Fatima
- Biomedical Engineering and Sciences Department, School of Mechanical and Manufacturing Engineering (SMME), National University of Sciences and Technology (NUST), Sector H-12, Islamabad, Pakistan
| | - Maliha Asad
- Biomedical Engineering and Sciences Department, School of Mechanical and Manufacturing Engineering (SMME), National University of Sciences and Technology (NUST), Sector H-12, Islamabad, Pakistan
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Shrivastav A, Mishra AK, Ali SS, Ahmad A, Abuzinadah MF, Khan NA. In vivo models for assesment of wound healing potential: A systematic review. ACTA ACUST UNITED AC 2018. [DOI: 10.1016/j.wndm.2018.01.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Marshall CD, Hu MS, Leavitt T, Barnes LA, Lorenz HP, Longaker MT. Cutaneous Scarring: Basic Science, Current Treatments, and Future Directions. Adv Wound Care (New Rochelle) 2018; 7:29-45. [PMID: 29392092 DOI: 10.1089/wound.2016.0696] [Citation(s) in RCA: 159] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Accepted: 07/01/2016] [Indexed: 12/12/2022] Open
Abstract
Significance: Scarring of the skin from burns, surgery, and injury constitutes a major burden on the healthcare system. Patients affected by major scars, particularly children, suffer from long-term functional and psychological problems. Recent Advances: Scarring in humans is the end result of the wound healing process, which has evolved to rapidly repair injuries. Wound healing and scar formation are well described on the cellular and molecular levels, but truly effective molecular or cell-based antiscarring treatments still do not exist. Recent discoveries have clarified the role of skin stem cells and fibroblasts in the regeneration of injuries and formation of scar. Critical Issues: It will be important to show that new advances in the stem cell and fibroblast biology of scarring can be translated into therapies that prevent and reduce scarring in humans without major side effects. Future Directions: Novel therapies involving the use of purified human cells as well as agents that target specific cells and modulate the immune response to injury are currently undergoing testing. In the basic science realm, researchers continue to refine our understanding of the role that particular cell types play in the development of scar.
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Affiliation(s)
- Clement D. Marshall
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, California
| | - Michael S. Hu
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, California
| | - Tripp Leavitt
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, California
| | - Leandra A. Barnes
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, California
| | - H. Peter Lorenz
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, California
| | - Michael T. Longaker
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, California
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Zhang Z, Zheng Y, Li Y, Bai H, Ma T, Song X, Zhao J, Gao L. The effects of sodium usnic acid by topical application on skin wound healing in rats. Biomed Pharmacother 2018; 97:587-593. [DOI: 10.1016/j.biopha.2017.10.093] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Revised: 10/15/2017] [Accepted: 10/21/2017] [Indexed: 01/09/2023] Open
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Advances of Stem Cell Therapeutics in Cutaneous Wound Healing and Regeneration. Mediators Inflamm 2017; 2017:5217967. [PMID: 29213192 PMCID: PMC5682068 DOI: 10.1155/2017/5217967] [Citation(s) in RCA: 129] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2017] [Revised: 08/14/2017] [Accepted: 09/13/2017] [Indexed: 12/15/2022] Open
Abstract
Cutaneous wound healing is a complex multiple phase process, which overlaps each other, where several growth factors, cytokines, chemokines, and various cells interact in a well-orchestrated manner. However, an imbalance in any of these phases and factors may lead to disruption in harmony of normal wound healing process, resulting in transformation towards chronic nonhealing wounds and abnormal scar formation. Although various therapeutic interventions are available to treat chronic wounds, current wound-care has met with limited success. Progenitor stem cells possess potential therapeutic ability to overcome limitations of the present treatments as it offers accelerated wound repair with tissue regeneration. A substantial number of stem cell therapies for cutaneous wounds are currently under development as a result of encouraging preliminary findings in both preclinical and clinical studies. However, the mechanisms by which these stem cells contribute to the healing process have yet to be elucidated. In this review, we emphasize on the major treatment modalities currently available for the treatment of the wound, role of various interstitial stem cells and exogenous adult stem cells in cutaneous wound healing, and possible mechanisms involved in the healing process.
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Trabelsi I, Ktari N, Ben Slima S, Triki M, Bardaa S, Mnif H, Ben Salah R. Evaluation of dermal wound healing activity and in vitro antibacterial and antioxidant activities of a new exopolysaccharide produced by Lactobacillus sp.Ca 6. Int J Biol Macromol 2017; 103:194-201. [DOI: 10.1016/j.ijbiomac.2017.05.017] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Revised: 02/16/2017] [Accepted: 05/05/2017] [Indexed: 01/28/2023]
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Park JW, Hwang SR, Yoon IS. Advanced Growth Factor Delivery Systems in Wound Management and Skin Regeneration. Molecules 2017; 22:E1259. [PMID: 28749427 PMCID: PMC6152378 DOI: 10.3390/molecules22081259] [Citation(s) in RCA: 205] [Impact Index Per Article: 29.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Revised: 07/21/2017] [Accepted: 07/25/2017] [Indexed: 01/18/2023] Open
Abstract
Growth factors are endogenous signaling molecules that regulate cellular responses required for wound healing processes such as migration, proliferation, and differentiation. However, exogenous application of growth factors has limited effectiveness in clinical settings due to their low in vivo stability, restricted absorption through skin around wound lesions, elimination by exudation prior to reaching the wound area, and other unwanted side effects. Sophisticated systems to control the spatio-temporal delivery of growth factors are required for the effective and safe use of growth factors as regenerative treatments in clinical practice, such as biomaterial-based drug delivery systems (DDSs). The current review describes the roles of growth factors in wound healing, their clinical applications for the treatment of chronic wounds, and advances in growth factor-loaded DDSs for enhanced wound healing, focusing on micro- and nano-particulate systems, scaffolds, hydrogels, and other miscellaneous systems.
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Affiliation(s)
- Jin Woo Park
- Department of Pharmacy, College of Pharmacy and Natural Medicine Research Institute, Mokpo National University, Muan-gun, Jeonnam 58554, Korea.
| | - Seung Rim Hwang
- Department of Pharmacy, College of Pharmacy, Chosun University, Dong-gu, Gwangju 61452, Korea.
| | - In-Soo Yoon
- College of Pharmacy, Pusan National University, Geumjeong-gu, Busan 46241, Korea.
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Sana S, Mazumder A, Datta S, Biswas D. Towards the development of an effective in vivo wound healing agent from Bacillus sp. derived biosurfactant using Catla catla fish fat. RSC Adv 2017. [DOI: 10.1039/c6ra26904d] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The aim of the present study was to investigate the excisional wound healing activity of a biosurfactant isolated fromBacillus stratosphericussp.
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Affiliation(s)
- Santanu Sana
- Dept. of Chemical Technology
- University of Calcutta
- Kolkata – 700 009
- India
| | - Asit Mazumder
- Dept. of Chemical Technology
- University of Calcutta
- Kolkata – 700 009
- India
| | - Sriparna Datta
- Dept. of Chemical Technology
- University of Calcutta
- Kolkata – 700 009
- India
| | - Dipa Biswas
- Dept. of Chemical Technology
- University of Calcutta
- Kolkata – 700 009
- India
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Zouari R, Moalla-Rekik D, Sahnoun Z, Rebai T, Ellouze-Chaabouni S, Ghribi-Aydi D. Evaluation of dermal wound healing and in vitro antioxidant efficiency of Bacillus subtilis SPB1 biosurfactant. Biomed Pharmacother 2016; 84:878-891. [DOI: 10.1016/j.biopha.2016.09.084] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Revised: 08/19/2016] [Indexed: 10/20/2022] Open
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Antioxidant and hemolytic activities, and effects in rat cutaneous wound healing of a novel polysaccharide from fenugreek (Trigonella foenum-graecum) seeds. Int J Biol Macromol 2016; 95:625-634. [PMID: 27914964 DOI: 10.1016/j.ijbiomac.2016.11.091] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Revised: 10/25/2016] [Accepted: 11/23/2016] [Indexed: 11/21/2022]
Abstract
The aim of this work was to evaluate the antioxidant and hemolytic activities as well as the in vivo wound healing performance of a novel polysaccharide (FWEP) extracted from fenugreek (Trigonella foenum-graecum) seeds. The antioxidant activity was evaluated in vivo and in vitro using various assays. Results showed that FWEP exhibited strong antioxidant activities but no hemolytic activity was observed towards bovine erythrocytes. The application of FWEP hydrogel on the wound site in a rat model enhanced significantly wound healing activity and accelerated the wound closure after 14days of wound induction. Histological examination also demonstrated fully re-epithelialized wound with a complete epidermal regeneration. Altogether, these evidences demonstrated that FWEP had strong wound healing potential presumably achieved through its antioxidant activities.
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Evaluation of Wound Healing Properties of Grape Seed, Sesame, and Fenugreek Oils. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2016; 2016:7965689. [PMID: 27990170 PMCID: PMC5136421 DOI: 10.1155/2016/7965689] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Accepted: 10/04/2016] [Indexed: 11/18/2022]
Abstract
Background. Medicinal plants have proved at all times to be a powerful remedy for health care. Accordingly, grape seed, sesame, and fenugreek extracted oils with pharmacological properties are investigated as wound treatments. This study assesses the potential of our oils for healing wounds induced on rats. Methods. Phytochemical analyses of oils have involved: quality value, polyphenol, chlorophylls, carotene, and fatty acids. Antibacterial activity was carried out. Antioxidant activity was evaluated: the scavenging effect on DPPH radicals, the reducing power, and β-carotene discoloration. Uniform wound excision was induced on rats dorsum randomly divided into five groups: groups treated with "CICAFLORA®" and tested oils and untreated one. The posthealing biopsies were histologically assessed. Results. Wound biopsies treated with oils showed the best tissue regeneration compared to control groups. Groups treated with our oils and "CICAFLORA" had higher wound contraction percentage. Polyunsaturated fatty acids in oils act as inflammatory mediators increasing neovascularization, extracellular remodeling, migration, and cell differentiation. Wound healing effect was attributed to antibacterial and antioxidant synergy. Conclusion. According to findings, oils showed better activity in wound healing compared to "CICAFLORA" due to a phytoconstituents synergy. However, clinical trials on humans are necessary to confirm efficacy on human pathology.
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Koppenol DC, Vermolen FJ, Koppenol-Gonzalez GV, Niessen FB, van Zuijlen PPM, Vuik K. A mathematical model for the simulation of the contraction of burns. J Math Biol 2016; 75:1-31. [PMID: 27826736 PMCID: PMC5486856 DOI: 10.1007/s00285-016-1075-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Revised: 08/04/2016] [Indexed: 12/31/2022]
Abstract
A continuum hypothesis-based model is developed for the simulation of the contraction of burns in order to gain new insights into which elements of the healing response might have a substantial influence on this process. Tissue is modeled as a neo-Hookean solid. Furthermore, (myo)fibroblasts, collagen molecules, and a generic signaling molecule are selected as model components. An overview of the custom-made numerical algorithm is presented. Subsequently, good agreement is demonstrated with respect to variability in the evolution of the surface area of burns over time between the outcomes of computer simulations and measurements obtained in an experimental study. In the model this variability is caused by varying the values for some of its parameters simultaneously. A factorial design combined with a regression analysis are used to quantify the individual contributions of these parameter value variations to the dispersion in the surface area of healing burns. The analysis shows that almost all variability in the surface area can be explained by variability in the value for the myofibroblast apoptosis rate and, to a lesser extent, the value for the collagen molecule secretion rate. This suggests that most of the variability in the evolution of the surface area of burns over time in the experimental study might be attributed to variability in these two rates. Finally, a probabilistic analysis is used in order to investigate in more detail the effect of variability in the values for the two rates on the healing process. Results of this analysis are presented and discussed.
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Affiliation(s)
- Daniël C Koppenol
- Delft Institute of Applied Mathematics, Delft University of Technology, Delft, The Netherlands.
| | - Fred J Vermolen
- Delft Institute of Applied Mathematics, Delft University of Technology, Delft, The Netherlands
| | | | - Frank B Niessen
- Department of Plastic, Reconstructive and Hand Surgery, MOVE Research Institute, VU University Medical Centre, Amsterdam, The Netherlands
| | - Paul P M van Zuijlen
- Department of Plastic, Reconstructive and Hand Surgery, MOVE Research Institute, VU University Medical Centre, Amsterdam, The Netherlands.,Burn Centre, Red Cross Hospital, Beverwijk, The Netherlands.,Department of Plastic, Reconstructive and Hand Surgery, Red Cross Hospital, Beverwijk, The Netherlands
| | - Kees Vuik
- Delft Institute of Applied Mathematics, Delft University of Technology, Delft, The Netherlands
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Lim KT, Seonwoo H, Choi KS, Jin H, Jang KJ, Kim J, Kim JW, Kim SY, Choung PH, Chung JH. Pulsed-Electromagnetic-Field-Assisted Reduced Graphene Oxide Substrates for Multidifferentiation of Human Mesenchymal Stem Cells. Adv Healthc Mater 2016; 5:2069-79. [PMID: 27332788 DOI: 10.1002/adhm.201600429] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Indexed: 12/12/2022]
Abstract
Electromagnetic fields (EMFs) can modulate cell proliferation, DNA replication, wound healing, cytokine expression, and the differentiation of mesenchymal stem cells (MSCs). Graphene, a 2D crystal of sp(2) -hybridized carbon atoms, has entered the spotlight in cell and tissue engineering research. However, a combination of graphene and EMFs has never been applied in tissue engineering. This study combines reduced graphene oxide (RGO) and pulsed EMFs (PEMFs) on the osteogenesis and neurogenesis of MSCs. First, the chemical properties of RGO are measured. After evaluation, the RGO is adsorbed onto glass, and its morphological and electrical properties are investigated. Next, an in vitro study is conducted using human alveolar bone marrow stem cells (hABMSCs). Their cell viability, cell adhesion, and extracellular matrix (ECM) formation are increased by RGO and PEMFs. The combination of RGO and PEMFs enhances osteogenic differentiation. Together, RGO and PEMFs enhance the neurogenic and adipogenic differentiation of hABMSCs. Moreover, in a DNA microarray analysis, the combination of RGO and PEMFs synergically increases ECM formation, membrane proteins, and metabolism. The combination of RGO and PEMFs is expected to be an efficient platform for stem cell and tissue engineering.
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Affiliation(s)
- Ki-Taek Lim
- Department of Biosystems Engineering; College of Agricultural and Life Sciences; Kangwon National University; Chuncheon 200-701 Republic of Korea
| | - Hoon Seonwoo
- Department of Biosystems and Biomaterials Science and Engineering; Seoul National University; Seoul 151-742 Republic of Korea
| | - Kyung Soon Choi
- Advanced Nano-Surface Research Group; Korea Basic Science Institute; Daejeon 305-333 Republic of Korea
| | - Hexiu Jin
- School of Stomatology; Capital Medical University; Beijing 10050 China
| | - Kyung-Je Jang
- Department of Biosystems and Biomaterials Science and Engineering; Seoul National University; Seoul 151-742 Republic of Korea
| | - Jangho Kim
- Department of Rural and Biosystems Engineering; Chonnam National University; Gwangju 500-757 Republic of Korea
| | - Jin-Woo Kim
- Department of Biological and Agricultural Engineering; Institute for Nanoscience and Engineering; University of Arkansas; Fayetteville AR 72701 USA
| | - Soo Young Kim
- School of Chemical Engineering and Materials Science; Chung-Ang University; Seoul 151-742 Republic of Korea
| | - Pill-Hoon Choung
- Department of Oral and Maxillofacial Surgery and Dental Research Institute; School of Dentistry; Seoul National University; Seoul 110-774 Republic of Korea
| | - Jong Hoon Chung
- Department of Biosystems and Biomaterials Science and Engineering; Seoul National University; Seoul 151-742 Republic of Korea
- Research Institute of Agriculture and Life Sciences; Seoul National University; Seoul 151-742 Republic of Korea
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A mathematical model for the simulation of the formation and the subsequent regression of hypertrophic scar tissue after dermal wounding. Biomech Model Mechanobiol 2016; 16:15-32. [PMID: 27229739 PMCID: PMC5285433 DOI: 10.1007/s10237-016-0799-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Accepted: 05/11/2016] [Indexed: 01/13/2023]
Abstract
A continuum hypothesis-based model is presented for the simulation of the formation and the subsequent regression of hypertrophic scar tissue after dermal wounding. Solely the dermal layer of the skin is modeled explicitly and it is modeled as a heterogeneous, isotropic and compressible neo-Hookean solid. With respect to the constituents of the dermal layer, the following components are selected as primary model components: fibroblasts, myofibroblasts, a generic signaling molecule and collagen molecules. A good match with respect to the evolution of the thickness of the dermal layer of scars between the outcomes of simulations and clinical measurements on hypertrophic scars at different time points after injury in human subjects is demonstrated. Interestingly, the comparison between the outcomes of the simulations and the clinical measurements demonstrates that a relatively high apoptosis rate of myofibroblasts results in scar tissue that behaves more like normal scar tissue with respect to the evolution of the thickness of the tissue over time, while a relatively low apoptosis rate results in scar tissue that behaves like hypertrophic scar tissue with respect to the evolution of the thickness of the tissue over time. Our ultimate goal is to construct models with which the properties of newly generated tissues that form during wound healing can be predicted with a high degree of certainty. The development of the presented model is considered by us as a step toward their construction.
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Goodarzi G, Qujeq D, Elmi MM, Feizi F, Fathai S. The effect of the glycolipoprotein extract (G-90) from earthwormEisenia foetidaon the wound healing process in alloxan-induced diabetic rats. Cell Biochem Funct 2016; 34:242-9. [DOI: 10.1002/cbf.3186] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2015] [Revised: 03/14/2016] [Accepted: 03/29/2016] [Indexed: 11/12/2022]
Affiliation(s)
- Golnaz Goodarzi
- Cellular and Molecular Biology Research Center (CMBRC), Health Research Institute; Babol University of Medical Sciences; Babol Iran
- Department of Clinical Biochemistry; Babol University of Medical Sciences; Babol Iran
| | - Durdi Qujeq
- Cellular and Molecular Biology Research Center (CMBRC), Health Research Institute; Babol University of Medical Sciences; Babol Iran
- Department of Clinical Biochemistry; Babol University of Medical Sciences; Babol Iran
| | - Maryam M. Elmi
- Cellular and Molecular Biology Research Center (CMBRC), Health Research Institute; Babol University of Medical Sciences; Babol Iran
- Department of Laboratory Sciences, Paramedical Faculty; Babol University of Medical Sciences; Babol Iran
| | - Farideh Feizi
- Department of Anatomical Science; Babol University of Medical Science; Babol Iran
| | - Sadegh Fathai
- Cellular and Molecular Biology Research Center (CMBRC), Health Research Institute; Babol University of Medical Sciences; Babol Iran
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Longo G, Ioannidu CA, Scotto d’Abusco A, Superti F, Misiano C, Zanoni R, Politi L, Mazzola L, Iosi F, Mura F, Scandurra R. Improving Osteoblast Response In Vitro by a Nanostructured Thin Film with Titanium Carbide and Titanium Oxides Clustered around Graphitic Carbon. PLoS One 2016; 11:e0152566. [PMID: 27031101 PMCID: PMC4816526 DOI: 10.1371/journal.pone.0152566] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Accepted: 03/16/2016] [Indexed: 01/27/2023] Open
Abstract
Introduction Recently, we introduced a new deposition method, based on Ion Plating Plasma Assisted technology, to coat titanium implants with a thin but hard nanostructured layer composed of titanium carbide and titanium oxides, clustered around graphitic carbon. The nanostructured layer has a double effect: protects the bulk titanium against the harsh conditions of biological tissues and in the same time has a stimulating action on osteoblasts. Results The aim of this work is to describe the biological effects of this layer on osteoblasts cultured in vitro. We demonstrate that the nanostructured layer causes an overexpression of many early genes correlated to proteins involved in bone turnover and an increase in the number of surface receptors for α3β1 integrin, talin, paxillin. Analyses at single-cell level, by scanning electron microscopy, atomic force microscopy, and single cell force spectroscopy, show how the proliferation, adhesion and spreading of cells cultured on coated titanium samples are higher than on uncoated titanium ones. Finally, the chemistry of the layer induces a better formation of blood clots and a higher number of adhered platelets, compared to the uncoated cases, and these are useful features to improve the speed of implant osseointegration. Conclusion In summary, the nanostructured TiC film, due to its physical and chemical properties, can be used to protect the implants and to improve their acceptance by the bone.
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Affiliation(s)
- Giovanni Longo
- Istituto di Struttura della Materia, CNR, Via del Fosso del Cavaliere 100, 00133, Roma, Italy
- Ecole Polytechnique Fédérale de Lausanne, SB IPSB LPMV, BSP 409 (Cubotron UNIL), R.te de la Sorge, CH-1015, Lausanne, Switzerland
- * E-mail:
| | - Caterina Alexandra Ioannidu
- Dipartimento di Scienze Biochimiche, Università di Roma ‘La Sapienza’, Piazzale Aldo Moro 5, 00185, Roma, Italy
| | - Anna Scotto d’Abusco
- Dipartimento di Scienze Biochimiche, Università di Roma ‘La Sapienza’, Piazzale Aldo Moro 5, 00185, Roma, Italy
| | - Fabiana Superti
- Dipartimento di Tecnologie e Salute, Istituto Superiore di Sanità, Viale Regina Elena, 299, Roma, Italy
| | | | - Robertino Zanoni
- Dipartimento di Chimica, Università di Roma ‘La Sapienza’, Piazzale Aldo Moro 5, 00185, Roma, Italy
| | - Laura Politi
- Dipartimento di Scienze Biochimiche, Università di Roma ‘La Sapienza’, Piazzale Aldo Moro 5, 00185, Roma, Italy
| | - Luca Mazzola
- Dipartimento di Scienze Biochimiche, Università di Roma ‘La Sapienza’, Piazzale Aldo Moro 5, 00185, Roma, Italy
| | - Francesca Iosi
- Dipartimento di Tecnologie e Salute, Istituto Superiore di Sanità, Viale Regina Elena, 299, Roma, Italy
| | - Francesco Mura
- Dipartimento di Chimica, Università di Roma ‘La Sapienza’, Piazzale Aldo Moro 5, 00185, Roma, Italy
| | - Roberto Scandurra
- Dipartimento di Scienze Biochimiche, Università di Roma ‘La Sapienza’, Piazzale Aldo Moro 5, 00185, Roma, Italy
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Chitosan: A Potential Therapeutic Dressing Material for Wound Healing. SPRINGER SERIES ON POLYMER AND COMPOSITE MATERIALS 2016. [DOI: 10.1007/978-81-322-2511-9_8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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