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Zhu Y, Pan S, Xu Y, Shi J, Shi Z. The Efficacy of Modified Ilizarov Distraction-Tension Device on Limb Wound Difficult to Cover with Skin Flaps. Orthop Surg 2024. [PMID: 39223103 DOI: 10.1111/os.14217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2024] [Revised: 08/07/2024] [Accepted: 08/07/2024] [Indexed: 09/04/2024] Open
Abstract
INTRODUCTION Closure of complex limb wounds poses challenges and requires innovative approaches. This research aimed to evaluate the effectiveness of a modified distraction-tension device using Ilizarov external fixation for wound closure in challenging cases. METHODS A retrospective analysis was conducted on 43 patients with extremity wounds that were difficult to cover with skin flaps between January 2019 and December 2022. Tension-relieving traction was applied using the Ilizarovexternal fixator apparatus, tailored to individual wound characteristics. Three types of wire-pin connections were used in this study. The distraction begins on the third postoperative day, with a speed of 0.5mm/d. Clinical wound healing scores were evaluated at 5 and 30 days postoperatively. Complications were documented following the Paley classification system. RESULTS Traction using modified Ilizarovexternal fixation promoted a significant reduction in wound size. The mean traction period was 11.2 ± 7.3 days, and the mean healing duration was 17.0 ± 3.7 days. The clinical wound healing score improved from 3.7 ± 2.9 at 5 days to 1.7 ± 0.7 at 30 days postoperatively (p < 0.05). Complications were minimal, with no significant obstacles or sequelae observed. Direct closure healing was achieved in 21 cases, skin graft healing in 13 cases, and suture healing in 9 cases. No recurrences were reported. Using Paley's classified complications, there were 17 problems, 9 obstacles, and 0 sequelae. CONCLUSION The Ilizarov tension-relieving traction shows promise in facilitating wound closure that is challenging to manage with skin flaps. The modified three types of pin-skin connection configuration could satisfy various types of wound closure.
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Affiliation(s)
- Yueliang Zhu
- The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Sunwen Pan
- The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yongqing Xu
- 920th Hospital of Joint Logistics Support Force of PLA, Kunming, China
| | - Jian Shi
- 920th Hospital of Joint Logistics Support Force of PLA, Kunming, China
| | - Zhen Shi
- The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
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Jin Y, Lu Y, Jiang X, Wang M, Yuan Y, Zeng Y, Guo L, Li W. Accelerated infected wound healing by probiotic-based living microneedles with long-acting antibacterial effect. Bioact Mater 2024; 38:292-304. [PMID: 38745591 PMCID: PMC11091528 DOI: 10.1016/j.bioactmat.2024.05.008] [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: 01/29/2024] [Revised: 05/03/2024] [Accepted: 05/03/2024] [Indexed: 05/16/2024] Open
Abstract
Delays in infected wound healing are usually a result of bacterial infection and local inflammation, which imposes a significant and often underappreciated burden on patients and society. Current therapies for chronic wound infection generally suffer from limited drug permeability and frequent drug administration, owing to the existence of a wound biofilm that acts as a barrier restricting the entry of various antibacterial drugs. Here, we report the design of a biocompatible probiotic-based microneedle (MN) patch that can rapidly deliver beneficial bacteria to wound tissues with improved delivery efficiency. The probiotic is capable of continuously producing antimicrobial substances by metabolizing introduced glycerol, thereby facilitating infected wound healing through long-acting antibacterial and anti-inflammatory effects. Additionally, the beneficial bacteria can remain highly viable (>80 %) inside MNs for as long as 60 days at 4 °C. In a mouse model of Staphylococcus aureus-infected wounds, a single administration of the MN patch exhibited superior antimicrobial efficiency and wound healing performance in comparison with the control groups, indicating great potential for accelerating infected wound closure. Further development of live probiotic-based MN patches may enable patients to better manage chronically infected wounds.
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Affiliation(s)
- Yinli Jin
- Department of Thyroid and Breast Surgery, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, China
| | - Yun Lu
- Department of Pharmacy, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Xue Jiang
- Department of Thyroid and Breast Surgery, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, China
| | - Min Wang
- Department of Plastic Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Yaqi Yuan
- Department of Thyroid and Breast Surgery, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, China
| | - Yongnian Zeng
- Department of Thyroid and Breast Surgery, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, China
| | - Liang Guo
- Department of Plastic Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Wei Li
- Department of Thyroid and Breast Surgery, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, China
- TaiKang Center for Life and Medical Sciences, Wuhan University, Wuhan, China
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Falade IO, Wilson JC, Mehari ME, Soroudi D, Song S, Kim EA. The complexity of online patient education materials for wound care strategies: A readability analysis. Surgery 2024; 176:324-330. [PMID: 38769036 DOI: 10.1016/j.surg.2024.04.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 03/13/2024] [Accepted: 04/06/2024] [Indexed: 05/22/2024]
Abstract
BACKGROUND In the United States, over 6 million people are affected by chronic wounds. Patients often rely on the Internet for treatment information; however, these educational materials typically exceed the average eighth-grade health literacy level. This study aimed to assess the readability and language accessibility of online patient education materials on wound care strategies. METHODS A search was conducted on Google for articles related to wound care strategies. The first 12 unique websites from each search strategy were selected for further analysis. Readability was assessed using 11 tests, with the mean scores calculated for each. RESULTS A total of 66 articles pertaining to wound care strategies were retrieved from 43 websites. All articles had an average reading grade level of 13.5 ± 2.5 and an average reading age of 18.7 ± 2.5 years. Websites were categorized by the following sources: academic (34.9%), reagent/biologic manufacturers (27.9%), wound care (18.6%), news media organizations (14%), and other (4.7%). Flesch Reading Ease Score, graded from 0 for most difficult to 100 for least difficult, was found to be highest for academic websites (44.2, P = .01) and lowest for news media websites (24.9, P = .01). Academic websites were available in the more languages compared to all other website categories (P < .01). CONCLUSION Online materials related to wound care strategies often exceed the National Institute of Health recommended eighth-grade reading level. This study emphasizes the need for healthcare providers to create more accessible educational materials to address the gap in health literacy and optimize patient care.
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Affiliation(s)
- Israel O Falade
- School of Medicine, University of California San Francisco, San Francisco, CA. https://www.twitter.com/israelfal
| | - Jasmin C Wilson
- School of Medicine, University of California San Francisco, San Francisco, CA
| | - Mulki E Mehari
- School of Medicine, University of California San Francisco, San Francisco, CA
| | - Daniel Soroudi
- School of Medicine, University of California San Francisco, San Francisco, CA
| | - Siyou Song
- Department of Surgery, Division of Plastic and Reconstructive Surgery, University of California San Francisco, San Francisco, CA
| | - Esther A Kim
- Department of Surgery, Division of Plastic and Reconstructive Surgery, University of California San Francisco, San Francisco, CA.
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Attri K, Chudasama B, Mahajan RL, Choudhury D. Integrated insulin-iron nanoparticles: a multi-modal approach for receptor-specific bioimaging, reactive oxygen species scavenging, and wound healing. DISCOVER NANO 2024; 19:96. [PMID: 38814485 PMCID: PMC11139842 DOI: 10.1186/s11671-024-04024-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Accepted: 04/26/2024] [Indexed: 05/31/2024]
Abstract
Metallic nanoparticles have emerged as a promising option for various biological applications, owing to their distinct characteristics such as small size, optical properties, and ability to exhibit luminescence. In this study, we have successfully employed a one-pot method to synthesize multifunctional insulin-protected iron [Fe(II)] nanoparticles denoted as [IFe(II)NPs]. The formation of IFe(II)NPs is confirmed by the presence of FTIR bonds at 447.47 and 798.28 cm-1, corresponding to Fe-O and Fe-N bonds, respectively. Detailed analysis of the HR-TEM-EDS-SAED data reveals that the particles are spherical in shape, partially amorphous in nature, and have a diameter of 28.6 ± 5.2 nm. Additionally, Metal Ion Binding (MIB) and Protein Data Bank (PDB) analyses affirm the binding of iron ions to the insulin hexamer. Our findings underscore the potential of IFe(II)NPs as a promising new platform for a variety of biomedical applications due to their high signal-to-noise ratio, and minimal background fluorescence. The particles are highly luminescent, biocompatible, and have a significant quantum yield (0.632). Exemplar applications covered in this paper include insulin receptor recognition and protection against reactive oxygen species (ROS), harmful molecules known to inflict damage on cells and DNA. The IFe(II)NPs effectively mitigate ROS-induced inflammation, which is a hinderance to wound recovery, thereby facilitating enhanced wound recovery.
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Affiliation(s)
- Komal Attri
- Department of Chemistry and Biochemistry, Thapar Institute of Engineering and Technology, Patiala, Punjab, 147004, India
- Centre of Excellence for Emerging Materials, Thapar Institute of Engineering and Technology, Patiala, Punjab, 147004, India
| | - Bhupendra Chudasama
- Centre of Excellence for Emerging Materials, Thapar Institute of Engineering and Technology, Patiala, Punjab, 147004, India.
- Department of Physics and Material Sciences, Thapar Institute of Engineering and Technology, Patiala, Punjab, 147004, India.
| | - Roop L Mahajan
- Department of Physics and Material Sciences, Thapar Institute of Engineering and Technology, Patiala, Punjab, 147004, India.
- Department of Mechanical Engineering, Department of Materials Science and Engineering Virginia Tech, Blacksburg, VA, 24061, USA.
| | - Diptiman Choudhury
- Department of Chemistry and Biochemistry, Thapar Institute of Engineering and Technology, Patiala, Punjab, 147004, India.
- Centre of Excellence for Emerging Materials, Thapar Institute of Engineering and Technology, Patiala, Punjab, 147004, India.
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Ashames A, Ijaz M, Buabeid M, Yasin H, Yaseen S, Bhandare RR, Murtaza G. In Vivo Wound Healing Potential and Molecular Pathways of Amniotic Fluid and Moringa Olifera-Loaded Nanoclay Films. Molecules 2024; 29:729. [PMID: 38338472 PMCID: PMC10856228 DOI: 10.3390/molecules29030729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 06/27/2023] [Accepted: 06/29/2023] [Indexed: 02/12/2024] Open
Abstract
Cutaneous wounds pose a significant health burden, affecting millions of individuals annually and placing strain on healthcare systems and society. Nanofilm biomaterials have emerged as promising interfaces between materials and biology, offering potential for various biomedical applications. To explore this potential, our study aimed to assess the wound healing efficacy of amniotic fluid and Moringa olifera-loaded nanoclay films by using in vivo models. Additionally, we investigated the antioxidant and antibacterial properties of these films. Using a burn wound healing model on rabbits, both infected and non-infected wounds were treated with the nanoclay films for a duration of twenty-one days on by following protocols approved by the Animal Ethics Committee. We evaluated wound contraction, proinflammatory mediators, and growth factors levels by analyzing blood samples. Histopathological changes and skin integrity were assessed through H&E staining. Statistical analysis was performed using SPSS software (version 2; Chicago, IL, USA) with significance set at p < 0.05. Our findings demonstrated a significant dose-dependent increase in wound contraction in the 2%, 4%, and 8% AMF-Me.mo treatment groups throughout the study (p < 0.001). Moreover, macroscopic analysis revealed comparable effects (p > 0.05) between the 8% AMF-Me.mo treatment group and the standard treatment. Histopathological examination confirmed the preservation of skin architecture and complete epidermal closure in both infected and non-infected wounds treated with AMF-Me.mo-loaded nanofilms. RT-PCR analysis revealed elevated concentrations of matrix metalloproteinases (MMPs) and vascular endothelial growth factor (VEGF), along with decreased levels of tumor necrosis factor-alpha (TNF-α) in AMF-Me.mo-loaded nanofilm treatment groups. Additionally, the antimicrobial activity of AMF-Me.mo-loaded nanofilms contributed to the decontamination of the wound site, positioning them as potential candidates for effective wound healing. However, further extensive clinical trials-based studies are necessary to confirm these findings.
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Affiliation(s)
- Akram Ashames
- College of Pharmacy and Health Sciences, Ajman University, Ajman P.O. Box 346, United Arab Emirates; (H.Y.); (R.R.B.)
- Medical and Bio-Allied Health Sciences Research Centre, Ajman University, Ajman P.O. Box 346, United Arab Emirates
| | - Munaza Ijaz
- Department of Microbiology, University of Central Punjab, Lahore 54000, Pakistan;
| | - Manal Buabeid
- Department of Pharmacy, Fatima College of Health Sciences, Abu Dhabi P.O. Box 3798, United Arab Emirates;
| | - Haya Yasin
- College of Pharmacy and Health Sciences, Ajman University, Ajman P.O. Box 346, United Arab Emirates; (H.Y.); (R.R.B.)
| | - Sidra Yaseen
- Department of Pharmacy, COMSATS University Islamabad, Lahore Campus, Lahore 54000, Pakistan;
| | - Richie R. Bhandare
- College of Pharmacy and Health Sciences, Ajman University, Ajman P.O. Box 346, United Arab Emirates; (H.Y.); (R.R.B.)
| | - Ghulam Murtaza
- Department of Pharmacy, COMSATS University Islamabad, Lahore Campus, Lahore 54000, Pakistan;
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Cong B, Chen M. Evaluating the efficacy of combined flap coverage, antibiotic-loaded bone cement and negative pressure irrigation in traumatic osteomyelitis management. Int Wound J 2024; 21:e14650. [PMID: 38272791 PMCID: PMC10794078 DOI: 10.1111/iwj.14650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 12/18/2023] [Accepted: 12/19/2023] [Indexed: 01/27/2024] Open
Abstract
Traumatic osteomyelitis with accompanying soft tissue defects presents a significant therapeutic challenge. This prospective, randomised controlled trial aims to evaluate the efficacy of antibiotic-impregnated bone cement, flap coverage and negative pressure sealed irrigation in the management of traumatic osteomyelitis complicated by soft tissue defects. A total of 46 patients with clinically diagnosed traumatic osteomyelitis and soft tissue defects were randomised into a control group (n = 23) and an observation group (n = 23). The control group underwent standard flap coverage and negative-pressure lavage, while the observation group received an additional treatment with antibiotic-loaded bone cement. Efficacy was measured based on clinical criteria, surgical metrics and morphometric assessment of bone and soft tissue defects. Statistical analyses were performed using SPSS version 27.0. The observation group, treated with an integrated approach of flap coverage, negative pressure wound therapy (NPWT) and antibiotic-impregnated bone cement, demonstrated significantly higher overall treatment efficacy (91.3%) compared to the control group, which received only flap coverage and NPWT (65.2%) (p < 0.01). This enhanced efficacy was evidenced through various outcomes: the observation group experienced reduced surgical times, shorter hospital stays, fewer dressing changes and accelerated wound healing, all statistically significant (p < 0.001). Additionally, a quantitative analysis at 6-month post-treatment revealed that the observation group showed more substantial reductions in both bone and soft tissue defect sizes compared to the control group (p < 0.001). The multi-modal treatment strategy, combining skin flap coverage, antibiotic bone cement and negative-pressure irrigation, showed marked efficacy in treating traumatic osteomyelitis and associated soft tissue defects. This approach accelerated postoperative recovery and lowered costs.
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Affiliation(s)
- Bo Cong
- Department of OrthopedicsYantaishan Hospital Affiliated to Binzhou Medical UniversityYantaiChina
- Yantai Key Laboratory for Repair and Reconstruction of Bone & JointYantaishan Hospital Affiliated to Binzhou Medical UniversityYantaiChina
| | - Mingqi Chen
- Department of OrthopedicsYantaishan Hospital Affiliated to Binzhou Medical UniversityYantaiChina
- Yantai Key Laboratory for Repair and Reconstruction of Bone & JointYantaishan Hospital Affiliated to Binzhou Medical UniversityYantaiChina
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7
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Wang D, Xing J, Zhang Y, Guo Z, Deng S, Guan Z, He B, Ma R, Leng X, Dong K, Dong Y. Metal-Phenolic Networks for Chronic Wounds Therapy. Int J Nanomedicine 2023; 18:6425-6448. [PMID: 38026522 PMCID: PMC10640828 DOI: 10.2147/ijn.s434535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 10/27/2023] [Indexed: 12/01/2023] Open
Abstract
Chronic wounds are recalcitrant complications of a variety of diseases, with pathologic features including bacterial infection, persistent inflammation, and proliferation of reactive oxygen species (ROS) levels in the wound microenvironment. Currently, the use of antimicrobial drugs, debridement, hyperbaric oxygen therapy, and other methods in clinical for chronic wound treatment is prone to problems such as bacterial resistance, wound expansion, and even exacerbation. In recent years, researchers have proposed many novel materials for the treatment of chronic wounds targeting the disease characteristics, among which metal-phenolic networks (MPNs) are supramolecular network structures that utilize multivalent metal ions and natural polyphenols complexed through ligand bonds. They have a flexible and versatile combination of structural forms and a variety of formations (nanoparticles, coatings, hydrogels, etc.) that can be constructed. Functionally, MPNs combine the chemocatalytic and bactericidal properties of metal ions as well as the anti-inflammatory and antioxidant properties of polyphenol compounds. Together with the excellent properties of rapid synthesis and negligible cytotoxicity, MPNs have attracted researchers' great attention in biomedical fields such as anti-tumor, anti-bacterial, and anti-inflammatory. This paper will focus on the composition of MPNs, the mechanisms of MPNs for the treatment of chronic wounds, and the application of MPNs in novel chronic wound therapies.
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Affiliation(s)
- Danyang Wang
- Department of Pharmacy, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
- School of Pharmacy, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
| | - Jianfeng Xing
- School of Pharmacy, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
| | - Ying Zhang
- School of Pharmacy, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
| | - Ziyang Guo
- School of Pharmacy, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
| | - Shujing Deng
- School of Pharmacy, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
| | - Zelin Guan
- School of Pharmacy, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
| | - Binyang He
- School of Pharmacy, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
| | - Ruirui Ma
- School of Pharmacy, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
| | - Xue Leng
- School of Pharmacy, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
| | - Kai Dong
- School of Pharmacy, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
| | - Yalin Dong
- Department of Pharmacy, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
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Shou Y, Le Z, Cheng HS, Liu Q, Ng YZ, Becker DL, Li X, Liu L, Xue C, Yeo NJY, Tan R, Low J, Kumar ARK, Wu KZ, Li H, Cheung C, Lim CT, Tan NS, Chen Y, Liu Z, Tay A. Mechano-Activated Cell Therapy for Accelerated Diabetic Wound Healing. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2304638. [PMID: 37681325 DOI: 10.1002/adma.202304638] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 08/22/2023] [Indexed: 09/09/2023]
Abstract
Chronic diabetic wounds are a significant global healthcare challenge. Current strategies, such as biomaterials, cell therapies, and medical devices, however, only target a few pathological features and have limited efficacy. A powerful platform technology combining magneto-responsive hydrogel, cells, and wireless magneto-induced dynamic mechanical stimulation (MDMS) is developed to accelerate diabetic wound healing. The hydrogel encapsulates U.S. Food and Drug Administration (FDA)-approved fibroblasts and keratinocytes to achieve ∼3-fold better wound closure in a diabetic mouse model. MDMS acts as a nongenetic mechano-rheostat to activate fibroblasts, resulting in ∼240% better proliferation, ∼220% more collagen deposition, and improved keratinocyte paracrine profiles via the Ras/MEK/ERK pathway to boost angiogenesis. The magneto-responsive property also enables on-demand insulin release for spatiotemporal glucose regulation through increasing network deformation and interstitial flow. By mining scRNAseq data, a mechanosensitive fibroblast subpopulation is identified that can be mechanically tuned for enhanced proliferation and collagen production, maximizing therapeutic impact. The "all-in-one" system addresses major pathological factors associated with diabetic wounds in a single platform, with potential applications for other challenging wound types.
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Affiliation(s)
- Yufeng Shou
- Department of Biomedical Engineering, National University of Singapore, Singapore, 117583, Singapore
- Institute for Health Innovation & Technology, National University of Singapore, Singapore, 117599, Singapore
| | - Zhicheng Le
- Department of Biomedical Engineering, National University of Singapore, Singapore, 117583, Singapore
- Institute for Health Innovation & Technology, National University of Singapore, Singapore, 117599, Singapore
| | - Hong Sheng Cheng
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, 636921, Singapore
| | - Qimin Liu
- School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan, 430070, China
| | - Yi Zhen Ng
- Skin Research Institute of Singapore, Agency for Science, Technology and Research (A*STAR), Singapore, 308232, Singapore
| | - David Laurence Becker
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, 636921, Singapore
- Skin Research Institute of Singapore, Agency for Science, Technology and Research (A*STAR), Singapore, 308232, Singapore
| | - Xianlei Li
- Department of Biomedical Engineering, National University of Singapore, Singapore, 117583, Singapore
- Institute for Health Innovation & Technology, National University of Singapore, Singapore, 117599, Singapore
| | - Ling Liu
- Institute for Health Innovation & Technology, National University of Singapore, Singapore, 117599, Singapore
- NUS Tissue Engineering Program, National University of Singapore, Singapore, 117510, Singapore
| | - Chencheng Xue
- Department of Biomedical Engineering, National University of Singapore, Singapore, 117583, Singapore
- Institute for Health Innovation & Technology, National University of Singapore, Singapore, 117599, Singapore
| | - Natalie Jia Ying Yeo
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, 636921, Singapore
| | - Runcheng Tan
- School of Materials Science and Engineering, Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Sun Yat-sen University, Guangzhou, 510006, China
| | - Jessalyn Low
- Department of Biomedical Engineering, National University of Singapore, Singapore, 117583, Singapore
| | - Arun R K Kumar
- Institute for Health Innovation & Technology, National University of Singapore, Singapore, 117599, Singapore
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 119288, Singapore
| | - Kenny Zhuoran Wu
- Department of Biomedical Engineering, National University of Singapore, Singapore, 117583, Singapore
| | - Hua Li
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Christine Cheung
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, 636921, Singapore
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A*STAR), Singapore, 138648, Singapore
| | - Chwee Teck Lim
- Department of Biomedical Engineering, National University of Singapore, Singapore, 117583, Singapore
- Institute for Health Innovation & Technology, National University of Singapore, Singapore, 117599, Singapore
- Mechanobiology Institute, National University of Singapore, Singapore, 117411, Singapore
| | - Nguan Soon Tan
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, 636921, Singapore
- School of Biological Sciences, Nanyang Technological University, Singapore, 637551, Singapore
| | - Yongming Chen
- School of Materials Science and Engineering, Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Sun Yat-sen University, Guangzhou, 510006, China
| | - Zhijia Liu
- School of Materials Science and Engineering, Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Sun Yat-sen University, Guangzhou, 510006, China
| | - Andy Tay
- Department of Biomedical Engineering, National University of Singapore, Singapore, 117583, Singapore
- Institute for Health Innovation & Technology, National University of Singapore, Singapore, 117599, Singapore
- NUS Tissue Engineering Program, National University of Singapore, Singapore, 117510, Singapore
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Lin Z, Zhang X, Chen Y, Tian Y, Yang X, Zhao Z. Negative pressure wound therapy for flap closed-incisions after 3D-printed prosthesis implantation in patients with chronic osteomyelitis with soft tissue defects. BMC Musculoskelet Disord 2023; 24:827. [PMID: 37858142 PMCID: PMC10585842 DOI: 10.1186/s12891-023-06970-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Accepted: 10/15/2023] [Indexed: 10/21/2023] Open
Abstract
BACKGROUND The flap closed-incisions healing after 3D-printed prosthesis implantation in Chronic Osteomyelitis with Soft Tissue Defects (COSTD) is critical. This study aimed to explore the safety and effectiveness of Negative Pressure Wound Therapy (NPWT) in promoting flap closed-incisions healing. METHODS Retrospective analysis of clinical data was performed, including baseline, surgical and hospitalization information. The efficacy of NPWT was assessed by comparing the ASEPSIS scores, Visual Analogue Scale (VAS), Activity of Daily Living Scale (ADLS), and Lower Extremity Functional Scale (LEFS), as well as the major postoperative complications. RESULTS The study included 20 patients, 13 received conventional dressing (Control group) and 7 received NPWT treatment (NPWT group). These two groups exhibited a notable disparity in the distribution of ASEPSIS scores, and the median scores were 24 in Control group and 9 in NPWT group (p = 0.001). Eight patients in the Control group experienced major incisional complications, including 7 cases of exudation, 3 cases of infection, 2 cases of non-healing, and 1 case of dehiscence, while none were observed in the NPWT group (p = 0.015). The VAS, ADLS, and LEFS scores were significantly improved in the NPWT group compared to the Control group (p = 0.003, 0.017, and 0.043, respectively). CONCLUSIONS The study findings suggest that NPWT applied to the healing process of flap closed-incisions after 3D prosthesis implantation in patients with COSTD can reduce the occurrence of postoperative major complications and promote the recovery of lower limb function and daily activities, which should be recommended for clinical practice.
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Affiliation(s)
- Zhiyu Lin
- Department of Plastic Surgery , Peking University Third Hospital, No. 49 North Garden Road, Haidian District, Beijing, 100191, China
| | - Xinling Zhang
- Department of Plastic Surgery, Beijing Hospital, Beijing, China
| | - Yujie Chen
- Department of Plastic Surgery , Peking University Third Hospital, No. 49 North Garden Road, Haidian District, Beijing, 100191, China
| | - Yun Tian
- Department of Orthopaedics, Peking University Third Hospital, No. 49 North Garden Road, Haidian District, Beijing, 100191, China
| | - Xin Yang
- Department of Plastic Surgery , Peking University Third Hospital, No. 49 North Garden Road, Haidian District, Beijing, 100191, China.
| | - Zhenmin Zhao
- Department of Plastic Surgery , Peking University Third Hospital, No. 49 North Garden Road, Haidian District, Beijing, 100191, China.
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10
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Evani SJ, Chen P, Karna SR, D'Arpa P, Leung KP. Cerium Nitrate Stiffens In Vitro Skin Models and Reduces Pseudomonas aeruginosa Pathogenicity and Penetration Through Skin Models. Adv Wound Care (New Rochelle) 2023; 12:546-559. [PMID: 36394961 PMCID: PMC10387153 DOI: 10.1089/wound.2022.0026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 11/12/2022] [Indexed: 11/18/2022] Open
Abstract
Objective: Cerium nitrate (CeN) plus silver sulfadiazine (SSD) cream has been used for 40-plus years to manage burns. CeN produces a hardened eschar believed to resist bacterial colonization/infection. To evaluate this potential mechanism, we treated in vitro skin models or Pseudomonas aeruginosa with CeN and measured mechanical properties of the models and bacterial virulence, respectively. Approach: We treated three-dimensional-collagen matrix and ex-vivo-burned porcine skin with CeN and evaluated stiffness and P. aeruginosa penetration. In addition, we treated P. aeruginosa with CeN and evaluated the bacteria's motility, skin model penetration, susceptibility to be phagocytized by the human monocytic cell line THP-1, and ability to stimulate this cell line to produce cytokines. Results: CeN treatment of skin models stiffened them and made them resistant to P. aeruginosa penetration. Inversely, CeN treatment of P. aeruginosa reduced their motility, penetration through skin models (ex-vivo-burned porcine skin), and ability to stimulate cytokine production (tumor necrosis factor-α [TNF-α] and interleukin 8 [IL-8]) by THP-1 cells. In addition, CeN-treated Pseudomonas was more readily phagocytized by THP-1 cells. Finally, P. aeruginosa inoculated on CeN-treated ex-vivo-burned porcine skin was more susceptible to killing by a silver dressing. Innovation: In vitro skin models offer a platform for screening drugs that interfere with bacterial penetration into wounded tissue. Conclusion: CeN treatment reduced P. aeruginosa virulence, altered the mechanical properties of ex-vivo-burned porcine skin and collagen matrix, retarded penetration of P. aeruginosa through the skin models, and resulted in increased vulnerability of P. aeruginosa to killing by antimicrobial wound dressings. These data support the use of CeN in burn management.
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Affiliation(s)
- Shankar J. Evani
- Combat Wound Care Group, United States Army Institute of Surgical Research, Fort Sam Houston, Texas, USA
| | - Ping Chen
- Combat Wound Care Group, United States Army Institute of Surgical Research, Fort Sam Houston, Texas, USA
| | - S.L. Rajasekhar Karna
- Combat Wound Care Group, United States Army Institute of Surgical Research, Fort Sam Houston, Texas, USA
| | - Peter D'Arpa
- Combat Wound Care Group, United States Army Institute of Surgical Research, Fort Sam Houston, Texas, USA
| | - Kai P. Leung
- Combat Wound Care Group, United States Army Institute of Surgical Research, Fort Sam Houston, Texas, USA
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11
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ElHawary H, Covone J, Abdulkarim S, Janis JE. Practical Review on Delayed Primary Closure: Basic Science and Clinical Applications. PLASTIC AND RECONSTRUCTIVE SURGERY-GLOBAL OPEN 2023; 11:e5172. [PMID: 37547342 PMCID: PMC10402984 DOI: 10.1097/gox.0000000000005172] [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: 04/29/2023] [Accepted: 06/22/2023] [Indexed: 08/08/2023]
Abstract
Wound healing complications present a significant burden on both patients and health-care systems, and understanding wound healing principles is crucial across medical and surgical specialties to help mitigate such complications. One of these longstanding principles, specifically delayed primary closure (DPC), described as mechanically closing a wound after several days of secondary intention healing, lacks clear consensus on its definition, indications, and outcomes. This practical review examines wound healing fundamentals, focusing on DPC, its execution, indications, and comparative outcomes. A PubMed literature search was conducted to retrieve studies on DPC. Inclusion criteria included comparative studies assessing outcomes and complications between DPC and other closure techniques, as well as articles investigating DPC's underlying physiology. Twenty-three comparative studies met inclusion criteria. DPC wounds have significantly higher partial pressure of oxygen, higher blood flow, and higher rates of collagen synthesis and remodeling activity, all of which help explain DPC wounds' superior mechanical strength. DPC seems most beneficial in contaminated wounds, such as complicated appendectomies, postcardiac surgery wounds, and complicated abdominal wall reconstructions, where it has been associated with lower rates of surgical site infections. This practical review provides an evidence-based approach to DPC, its physiology, technique, and indications. Based on the existing literature, the authors recommend that DPC wounds should be dressed in saline/betadine soaks, changed and irrigated daily, with delayed closure lasting between 3 and 5 days or until the infection has resolved. The clearest indications for DPC are in the context of contaminated abdominal surgery and sternal wound dehiscence post cardiac surgery.
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Affiliation(s)
- Hassan ElHawary
- From the Division of Plastic and Reconstructive Surgery, McGill University Health Centre, Montréal, Quebec, Canada
| | - Jason Covone
- Faculty of Medicine, McGill University Health Centre, Montréal, Quebec, Canada
| | - Shafic Abdulkarim
- Department of Surgery, McGill University Health Centre, Montréal, Quebec, Canada
| | - Jeffrey E. Janis
- Department of Plastic Surgery, Ohio State University Wexner Medical Center, Columbus, Ohio
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12
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Sharda D, Choudhury D. Insulin-cobalt core-shell nanoparticles for receptor-targeted bioimaging and diabetic wound healing. RSC Adv 2023; 13:20321-20335. [PMID: 37425626 PMCID: PMC10323873 DOI: 10.1039/d3ra01473h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Accepted: 06/28/2023] [Indexed: 07/11/2023] Open
Abstract
Diabetic wounds represent a major issue in medical care and need advanced therapeutic and tissue imaging systems for better management. The utilization of nano-formulations involving proteins like insulin and metal ions plays significant roles in controlling wound outcomes by decreasing inflammation or reducing microbial load. This work reports the easy one-pot synthesis of extremely stable, biocompatible, and highly fluorescent insulin-cobalt core-shell nanoparticles (ICoNPs) with enhanced quantum yield for their highly specific receptor-targeted bioimaging and normal and diabetic wound healing in vitro (HEKa cell line). The particles were characterized using physicochemical properties, biocompatibility, and wound healing applications. FTIR bands at 670.35 cm-1, 849.79, and 973.73 indicating the Co-O bending, CoO-OH bond, and Co-OH bending, respectively, confirm the protein-metal interactions, which is further supported by the Raman spectra. In silico studies indicate the presence of cobalt binding sites on the insulin chain B at 8 GLY, 9 SER, and 10 HIS positions. The particles exhibit a magnificent loading efficiency of 89.48 ± 0.049% and excellent release properties (86.54 ± 2.15% within 24 h). Further, based on fluorescent properties, the recovery process can be monitored under an appropriate setup, and the binding of ICoNPs to insulin receptors was confirmed by bioimaging. This work helps synthesize effective therapeutics with numerous wound-healing promoting and monitoring applications.
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Affiliation(s)
- Deepinder Sharda
- School of Chemistry and Biochemistry, Thapar Institute of Engineering and Technology Patiala 147004 Punjab India +91-8196949843
| | - Diptiman Choudhury
- School of Chemistry and Biochemistry, Thapar Institute of Engineering and Technology Patiala 147004 Punjab India +91-8196949843
- Thapar Institute of Engineering and Technology-Virginia Tech (USA) Center of Excellence in Emerging Materials, Thapar Institute of Engineering and Technology Patiala Punjab-147004 India
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13
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Kobayashi S, Furukawa M, Ichioka S, Horiuchi K, Kitano I, Fujii M, Ayabe S, Tanaka R, Ohura N, Ohura T. A novel low-density lipoprotein/fibrinogen apheresis method for chronic limb-threatening ischemia in patients with poor options for revascularization: A multicenter, single-arm clinical trial. Ther Apher Dial 2023; 27:361-369. [PMID: 36858047 DOI: 10.1111/1744-9987.13915] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 07/13/2022] [Accepted: 07/27/2022] [Indexed: 11/29/2022]
Abstract
INTRODUCTION Low-density lipoprotein (LDL) apheresis is a treatment option for patients with unhealed chronic limb-threatening ischemia (CLTI) after revascularization. The newly developed AS-25 is a direct hemoperfusion-type apheresis device that differs from conventional LDL apheresis therapy and is designed to specifically adsorb both LDL-C and fibrinogen. We evaluate the efficacy and safety of AS-25. METHODS This study included 61 patients whose ulcers failed to heal after revascularization or were ineligible for revascularization. Of these, 50 were undergoing hemodialysis. The primary endpoint was the healing rate of a target lesion of interest (ulcer), using historical data as control. RESULTS The ulcer healing rate of 45.9% was significantly higher than the historical data. No significant safety concerns were observed. CONCLUSIONS AS-25 was effective in healing ulcers and preventing major amputation even in CLTI refractory patients on hemodialysis, thus showing potential clinical applicability and high significance. CLINICAL TRIAL REGISTRATION UMIN study ID UMIN000020336.
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Affiliation(s)
- Shuzo Kobayashi
- Kidney Disease and Transplant Center, Shonan Kamakura General Hospital, Kamakura, Japan
| | | | - Shigeru Ichioka
- Department of Plastic and Reconstructive Surgery, Saitama Medical University, Moroyama, Japan
| | - Katsumi Horiuchi
- Department of Plastic and Reconstructive Surgery, Sapporo City General Hospital, Sapporo, Japan
| | - Ikuro Kitano
- Department of Vascular Surgery, Shinsuma General Hospital, Kobe, Japan
| | - Miki Fujii
- Department of Plastic and Reconstructive Surgery, Critical Limb Ischemia Center, Kitaharima Medical Center, Ono, Japan
| | - Shinobu Ayabe
- Department of Plastic and Reconstructive Surgery, Yao Tokushukai General Hospital, Osaka, Japan
| | - Rica Tanaka
- Department of Plastic and Reconstructive Surgery, Juntendo University School of Medicine, Tokyo, Japan
| | - Norihiko Ohura
- Department of Plastic and Reconstructive Surgery, Kyorin University School of Medicine, Tokyo, Japan
| | - Takehiko Ohura
- Pressure Ulcers and Wound Healing Research Center, Sapporo, Japan
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14
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Figueiredo CSSES, de Oliveira PV, Saminez WFDS, Diniz RM, Mendonça JSP, Silva LDS, Paiva MYM, do Nascimento MDS, Aliança ASDS, Zagmignan A, Rodrigues JFS, Souza JCDS, Grisotto MAG, da Silva LCN. Immunomodulatory Effects of Cinnamaldehyde in Staphylococcus aureus-Infected Wounds. Molecules 2023; 28:molecules28031204. [PMID: 36770872 PMCID: PMC9921375 DOI: 10.3390/molecules28031204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/12/2022] [Accepted: 12/23/2022] [Indexed: 01/28/2023] Open
Abstract
Cinnamaldehyde (CNM) is an essential-oil component with reported anti-infective, anti-inflammatory, and healing effects, making it an interesting compound for the treatment of wound infection. Herein, we evaluated the effects of topical administration of CNM in experimental wounds infected by Staphylococcus aureus. Swiss mice (n = 12/group) were randomly allocated into three groups (CON: animals with uninfected lesions; Sa: animals with untreated infected lesions; Sa + CNM: animals with infected wounds and treated with CNM). Excisional lesions (64 mm2) were induced at the dorsal area followed by the addition of S. aureus (80 μL of a 1.5 × 108 CFU/mL bacterial suspension). The wounds were treated with CNM (200 μg/wound/day) or vehicle (2% DMSO) for 10 days. Skin samples were taken on the 3rd or 10th treatment day for quantification of inflammatory mediators, bacterial load, immunophenotyping, and histological analysis. The treatment with CNM improved the healing process and attenuated the severity of skin lesions infected by S. aureus. These effects were associated with significant decreases in bacterial loads in CNM-treated wounds. The levels of neutrophils, TNF-α, IL-6, NO, and VEGF were decreased in the lesions treated with CNM. Taken together, these data provide further evidence of the effectiveness of CNM for the treatment of skin infections.
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Affiliation(s)
- Cristiane Santos Silva e Silva Figueiredo
- Laboratório de Patogenicidade Microbiana, Universidade Ceuma, São Luís 65075-120, Brazil
- Rede de Biodiversidade e Biotecnologia da Amazônia Legal (BIONORTE), São Luís 65075-120, Brazil
| | | | | | - Roseana Muniz Diniz
- Laboratório de Patogenicidade Microbiana, Universidade Ceuma, São Luís 65075-120, Brazil
| | | | - Lucas dos Santos Silva
- Laboratório de Patogenicidade Microbiana, Universidade Ceuma, São Luís 65075-120, Brazil
| | | | | | | | - Adrielle Zagmignan
- Laboratório de Patogenicidade Microbiana, Universidade Ceuma, São Luís 65075-120, Brazil
| | | | | | | | - Luís Cláudio Nascimento da Silva
- Laboratório de Patogenicidade Microbiana, Universidade Ceuma, São Luís 65075-120, Brazil
- Rede de Biodiversidade e Biotecnologia da Amazônia Legal (BIONORTE), São Luís 65075-120, Brazil
- Correspondence:
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15
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Sun R, Liu C, Liu J, Yin S, Song R, Ma J, Cao G, Lu Y, Zhang G, Wu Z, Chen A, Wang Y. Integrated network pharmacology and experimental validation to explore the mechanisms underlying naringenin treatment of chronic wounds. Sci Rep 2023; 13:132. [PMID: 36599852 PMCID: PMC9811895 DOI: 10.1038/s41598-022-26043-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 12/08/2022] [Indexed: 01/06/2023] Open
Abstract
Naringenin is a citrus flavonoid with various biological functions and a potential therapeutic agent for skin diseases, such as UV radiation and atopic dermatitis. The present study investigates the therapeutic effect and pharmacological mechanism of naringenin on chronic wounds. Using network pharmacology, we identified 163 potential targets and 12 key targets of naringenin. Oxidative stress was confirmed to be the main biological process modulated by naringenin. The transcription factor p65 (RELA), alpha serine/threonine-protein kinase (AKT1), mitogen-activated protein kinase 1 (MAPK1) and mitogen-activated protein kinase 3 (MAPK3) were identified as common targets of multiple pathways involved in treating chronic wounds. Molecular docking verified that these four targets stably bound naringenin. Naringenin promoted wound healing in mice in vivo by inhibiting wound inflammation. Furthermore, in vitro experiments showed that a low naringenin concentration did not significantly affect normal skin cell viability and cell apoptosis; a high naringenin concentration was cytotoxic and reduced cell survival by promoting apoptosis. Meanwhile, comprehensive network pharmacology, molecular docking and in vivo and in vitro experiments revealed that naringenin could treat chronic wounds by alleviating oxidative stress and reducing the inflammatory response. The underlying mechanism of naringenin in chronic wound therapy involved modulating the RELA, AKT1 and MAPK1/3 signalling pathways to inhibit ROS production and inflammatory cytokine expression.
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Affiliation(s)
- Rui Sun
- grid.27255.370000 0004 1761 1174Department of Plastic Surgery, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, Shandong 250012 People’s Republic of China ,Jinan Clinical Research Center for Tissue Engineering Skin Regeneration and Wound Repair, Jinan, Shandong 250014 People’s Republic of China
| | - Chunyan Liu
- grid.452422.70000 0004 0604 7301Department of Plastic Surgery, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, Shandong 250014 People’s Republic of China ,Jinan Clinical Research Center for Tissue Engineering Skin Regeneration and Wound Repair, Jinan, Shandong 250014 People’s Republic of China
| | - Jian Liu
- grid.27255.370000 0004 1761 1174Department of Plastic Surgery, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, Shandong 250012 People’s Republic of China ,grid.452422.70000 0004 0604 7301Department of Plastic Surgery, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, Shandong 250014 People’s Republic of China ,Jinan Clinical Research Center for Tissue Engineering Skin Regeneration and Wound Repair, Jinan, Shandong 250014 People’s Republic of China
| | - Siyuan Yin
- grid.27255.370000 0004 1761 1174Department of Plastic Surgery, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, Shandong 250012 People’s Republic of China ,grid.452422.70000 0004 0604 7301Department of Plastic Surgery, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, Shandong 250014 People’s Republic of China ,Jinan Clinical Research Center for Tissue Engineering Skin Regeneration and Wound Repair, Jinan, Shandong 250014 People’s Republic of China
| | - Ru Song
- grid.27255.370000 0004 1761 1174Department of Plastic Surgery, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, Shandong 250012 People’s Republic of China ,Jinan Clinical Research Center for Tissue Engineering Skin Regeneration and Wound Repair, Jinan, Shandong 250014 People’s Republic of China
| | - Jiaxu Ma
- grid.27255.370000 0004 1761 1174Department of Plastic Surgery, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, Shandong 250012 People’s Republic of China ,Jinan Clinical Research Center for Tissue Engineering Skin Regeneration and Wound Repair, Jinan, Shandong 250014 People’s Republic of China
| | - Guoqi Cao
- grid.27255.370000 0004 1761 1174Department of Plastic Surgery, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, Shandong 250012 People’s Republic of China ,Jinan Clinical Research Center for Tissue Engineering Skin Regeneration and Wound Repair, Jinan, Shandong 250014 People’s Republic of China
| | - Yongpan Lu
- grid.464402.00000 0000 9459 9325The First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250014 People’s Republic of China ,Jinan Clinical Research Center for Tissue Engineering Skin Regeneration and Wound Repair, Jinan, Shandong 250014 People’s Republic of China
| | - Guang Zhang
- grid.27255.370000 0004 1761 1174Department of Plastic Surgery, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, Shandong 250012 People’s Republic of China ,Jinan Clinical Research Center for Tissue Engineering Skin Regeneration and Wound Repair, Jinan, Shandong 250014 People’s Republic of China
| | - Zhenjie Wu
- grid.27255.370000 0004 1761 1174Department of Plastic Surgery, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, Shandong 250012 People’s Republic of China ,Jinan Clinical Research Center for Tissue Engineering Skin Regeneration and Wound Repair, Jinan, Shandong 250014 People’s Republic of China
| | - Aoyu Chen
- grid.452422.70000 0004 0604 7301Department of Plastic Surgery, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, Shandong 250014 People’s Republic of China ,Jinan Clinical Research Center for Tissue Engineering Skin Regeneration and Wound Repair, Jinan, Shandong 250014 People’s Republic of China
| | - Yibing Wang
- grid.27255.370000 0004 1761 1174Department of Plastic Surgery, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, Shandong 250012 People’s Republic of China ,grid.452422.70000 0004 0604 7301Department of Plastic Surgery, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, Shandong 250014 People’s Republic of China ,grid.464402.00000 0000 9459 9325The First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250014 People’s Republic of China ,Jinan Clinical Research Center for Tissue Engineering Skin Regeneration and Wound Repair, Jinan, Shandong 250014 People’s Republic of China
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16
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Dimitriadis K, Tasopoulou KM, Georgakarakos E. Palpable Distal Pulses Ensure Optimal Wound Healing of Large Ulcer Areas by Secondary Intention. INT J LOW EXTR WOUND 2022:15347346221139351. [PMID: 36380527 DOI: 10.1177/15347346221139351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2024]
Affiliation(s)
- Konstantinos Dimitriadis
- Department of Vascular Surgery, 387479"Democritus" University of Thrace, University Hospital of Alexandroupolis, Alexansroupolis, Greece
| | - Kalliopi-Maria Tasopoulou
- Department of Vascular Surgery, 387479"Democritus" University of Thrace, University Hospital of Alexandroupolis, Alexansroupolis, Greece
| | - Efstratios Georgakarakos
- Department of Vascular Surgery, 387479"Democritus" University of Thrace, University Hospital of Alexandroupolis, Alexansroupolis, Greece
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17
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Effects of ALA-PDT on the macrophages in wound healing and its related mechanisms in vivo and in vitro. Photodiagnosis Photodyn Ther 2022; 38:102816. [PMID: 35378277 DOI: 10.1016/j.pdpdt.2022.102816] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 03/12/2022] [Accepted: 03/15/2022] [Indexed: 01/04/2023]
Abstract
BACKGROUND Several studies have suggested the effectiveness of photodynamic therapy (PDT) for wound healing. Macrophages are critical immune cells necessary for regulated inflammation during wound repair. However, the available information regarding the effects of PDT on macrophages during cutaneous wound healing remains insufficient. This study aimed to further investigate these aspects in vivo and in vitro. METHODS Mouse full-thickness wound models were used as the study samples to investigate the therapeutic effects and mechanisms of 5-aminolevulinic acid (ALA) PDT. Wound healing rate, granulation tissue formation, local inflammation, M1/M2 macrophages differentiation, were measured at different time points treated by ALA-PDT. The polarization of macrophages induced by ALA-PDT was further evaluated in vitro using PCR and western blot analysis. RESULTS ALA-PDT could promote formation of granulation tissue, increase inflammatory infiltration and activate M1 macrophages in the early stage of injury. While, ALA-PDT could also facilitate absorption of granulation tissue, inhibit inflammatory infiltration and enhance M2 macrophages polarization in the later stage of wound repair. In vitro, ALA-PDT could modulate the ratio of M2 polarization to M1 polarization via NF-κB signaling pathway. CONCLUSIONS ALA-PDT topical application stimulates wound healing by regulating formation of granulation tissue, inflammatory process and M1/M2 macrophages differentiation. The study places a preliminary theoretical basis for topical ALA-PDT to be administered clinically in cutaneous wounds healing.
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18
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Wu L, Wen B, Xu Z, Lin K. Research progress on negative pressure wound therapy with instillation in the treatment of orthopaedic wounds. Int Wound J 2022; 19:1449-1455. [PMID: 35029043 PMCID: PMC9493210 DOI: 10.1111/iwj.13741] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Accepted: 12/02/2021] [Indexed: 12/28/2022] Open
Abstract
Negative pressure wound therapy with instillation (NPWTi) has the dual function of negative pressure sealing drainage and irrigation, which overcomes the disadvantages of NPWT, such as tube obstruction, inability to apply topical medicine, and poor anti‐infection ability. NPWTi has been researched extensively and widely used in various types of wounds, and certain effects have been achieved. A series of parameters for NPWTi have not been unified at present, including the flushing fluid option, flushing mode, and treatment period. This paper reviews the research progress of these parameters for NPWTi and their application in the treatment of orthopaedic wounds.
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Affiliation(s)
- Lijiao Wu
- Department of Orthopedic Surgery, Fujian Provincial Hospital Jinshan Branch, Fuzhou, China.,Shengli Clinical Medical College, Fujian Medical University, Fuzhou, China
| | - Baoyu Wen
- Department of Orthopedic Surgery, Fujian Provincial Hospital Jinshan Branch, Fuzhou, China.,Shengli Clinical Medical College, Fujian Medical University, Fuzhou, China
| | - Zhaorong Xu
- Burn and Wound Repair Department, Fujian Medical University Union Hospital, Fuzhou, China
| | - Kefeng Lin
- Department of Orthopedic Surgery, Fujian Provincial Hospital Jinshan Branch, Fuzhou, China.,Shengli Clinical Medical College, Fujian Medical University, Fuzhou, China
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19
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Prakash J, Venkataprasanna KS, Venkatasubbu GD. Investigation on visible light-driven antimicrobial and mechanistic activity of GO/TiO 2(V–N) nanocomposite against wound pathogens. NEW J CHEM 2022. [DOI: 10.1039/d2nj01634f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
GO/TiO2(V–N) is fabricated as a visible light driven efficient antimicrobial material. In the presence of light, GO/TiO2(V–N) was employed as a photocatalytic active material against wound pathogens.
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Affiliation(s)
- J. Prakash
- Department of Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Chengalpattu District, 603 203, Tamil Nadu, India
| | | | - G. Devanand Venkatasubbu
- Department of Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Chengalpattu District, 603 203, Tamil Nadu, India
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