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Wallblom K, Lundgren S, Saleh K, Schmidtchen A, Puthia M. Image-based non-invasive assessment of suction blister wounds for clinical safety and efficacy. Wound Repair Regen 2024; 32:343-359. [PMID: 38511666 DOI: 10.1111/wrr.13172] [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: 08/30/2023] [Revised: 02/07/2024] [Accepted: 02/25/2024] [Indexed: 03/22/2024]
Abstract
Recognising the need for objective imaging-based technologies to assess wound healing in clinical studies, the suction blister wound model offers an easily accessible wound model that creates reproducible epidermal wounds that heal without scarring. This study provides a comprehensive methodology for implementing and evaluating photography-based imaging techniques utilising the suction blister wound model. Our method encompasses a protocol for capturing consistent, high-quality photographs and procedures for quantifying these images via a visual wound healing score and a computer-assisted colour analysis of wound exudation and wound redness. We employed this methodology on 16 suction blister wounds used as controls in a clinical phase-1 trial. Our method enabled us to discern and quantify subtle differences between individual wounds concerning healing progress, erythema and wound exudation. The wound healing score exhibited a high inter-rater agreement. There was a robust correlation between the spectrophotometer-measured erythema index and photography-based wound redness, as well as between dressing protein content and photography-based dressing yellowness. In conclusion, this study equips researchers conducting clinical wound studies with reproducible methods that may support future wound research and aid in the development of new treatments.
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Affiliation(s)
- Karl Wallblom
- Division of Dermatology and Venereology, Department of Clinical Sciences, Lund University, Lund, Sweden
- Department of Dermatology, Skane University Hospital, Lund, Sweden
| | - Sigrid Lundgren
- Division of Dermatology and Venereology, Department of Clinical Sciences, Lund University, Lund, Sweden
- Department of Dermatology, Skane University Hospital, Lund, Sweden
| | - Karim Saleh
- Division of Dermatology and Venereology, Department of Clinical Sciences, Lund University, Lund, Sweden
- Department of Dermatology, Skane University Hospital, Lund, Sweden
| | - Artur Schmidtchen
- Division of Dermatology and Venereology, Department of Clinical Sciences, Lund University, Lund, Sweden
- Department of Dermatology, Skane University Hospital, Lund, Sweden
| | - Manoj Puthia
- Division of Dermatology and Venereology, Department of Clinical Sciences, Lund University, Lund, Sweden
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2
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Lundgren S, Wallblom K, Fisher J, Erdmann S, Schmidtchen A, Saleh K. Study protocol for a phase 1, randomised, double-blind, placebo-controlled study to investigate the safety, tolerability and pharmacokinetics of ascending topical doses of TCP-25 applied to epidermal suction blister wounds in healthy male and female volunteers. BMJ Open 2023; 13:e064866. [PMID: 36813496 PMCID: PMC9950920 DOI: 10.1136/bmjopen-2022-064866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/24/2023] Open
Abstract
INTRODUCTION TCP-25 gel is intended for use in treatment of wound infection and inflammation. Current local therapies for wounds have limited efficacy to prevent infections and there are no wound treatments available today that target the excessive inflammation that often hampers wound healing in both acute and chronic wounds. There is therefore a high medical need for new therapeutic alternatives. METHODS AND ANALYSIS A randomised, double-blinded, first-in-human study was designed to evaluate the safety, tolerability and potential systemic exposure of three increasing doses of the TCP-25 gel applied topically on suction blister wounds in healthy adults. The dose-escalation will be divided into three sequential dose groups with eight subjects in each group (24 patients in total). Within each dose group, the subjects will receive four wounds, with two wounds on each thigh. Each subject will receive TCP-25 on one wound per thigh and placebo on one wound per thigh in a randomised double-blinded manner, with a reverse reciprocal position on each respective thigh, to a total of five doses over 8 days. An internal safety review committee will monitor emerging safety and plasma concentration data over the course of the study and must give a favourable recommendation prior to initiating the next dose group, which will receive placebo gel or a higher concentration of TCP-25 in exactly the same manner described above. ETHICS AND DISSEMINATION The study will be performed in accordance with ethical principles consistent with the Declaration of Helsinki, ICH/GCPE6 (R2), European Union Clinical Trials Directive and applicable local regulatory requirements.This study is approved by the Swedish Medical Products Agency and the Swedish ethics committee under the registration number 2022-00527-01. The results of this study will be disseminated via publication to a peer-reviewed journal at the discretion of the Sponsor. TRIAL REGISTRATION NUMBER NCT05378997.
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Affiliation(s)
- Sigrid Lundgren
- Section for Dermatology and Venereology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
- Department of Dermatology, Skåne University Hospital Lund, Lund, Sweden
| | - Karl Wallblom
- Section for Dermatology and Venereology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
- Department of Dermatology, Skåne University Hospital Lund, Lund, Sweden
| | - Jane Fisher
- Section for Dermatology and Venereology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
| | - Susanne Erdmann
- Department of Dermatology, Skåne University Hospital Lund, Lund, Sweden
| | - Artur Schmidtchen
- Section for Dermatology and Venereology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
- Department of Dermatology, Skåne University Hospital Lund, Lund, Sweden
- Copenhagen Wound Healing Center, Bispebjerg Hospital, Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denamark
| | - Karim Saleh
- Section for Dermatology and Venereology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
- Department of Dermatology, Skåne University Hospital Lund, Lund, Sweden
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3
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Ågren MS, Litman T, Eriksen JO, Schjerling P, Bzorek M, Gjerdrum LMR. Gene Expression Linked to Reepithelialization of Human Skin Wounds. Int J Mol Sci 2022; 23:ijms232415746. [PMID: 36555389 PMCID: PMC9779194 DOI: 10.3390/ijms232415746] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 12/09/2022] [Accepted: 12/09/2022] [Indexed: 12/14/2022] Open
Abstract
Our understanding of the regulatory processes of reepithelialization during wound healing is incomplete. In an attempt to map the genes involved in epidermal regeneration and differentiation, we measured gene expression in formalin-fixed, paraffin-embedded standardized epidermal wounds induced by the suction-blister technique with associated nonwounded skin using NanoString technology. The transcripts of 139 selected genes involved in clotting, immune response to tissue injury, signaling pathways, cell adhesion and proliferation, extracellular matrix remodeling, zinc transport and keratinocyte differentiation were evaluated. We identified 22 upregulated differentially expressed genes (DEGs) in descending order of fold change (MMP1, MMP3, IL6, CXCL8, SERPINE1, IL1B, PTGS2, HBEGF, CXCL5, CXCL2, TIMP1, CYR61, CXCL1, MMP12, MMP9, HGF, CTGF, ITGB3, MT2A, FGF7, COL4A1 and PLAUR). The expression of the most upregulated gene, MMP1, correlated strongly with MMP3 followed by IL6 and IL1B. rhIL-1β, but not rhIL-6, exposure of cultured normal human epidermal keratinocytes and normal human dermal fibroblasts increased both MMP1 mRNA and MMP-1 protein levels, as well as TIMP1 mRNA levels. The increased TIMP1 in wounds was validated by immunohistochemistry. The six downregulated DEGs (COL7A1, MMP28, SLC39A2, FLG1, KRT10 and FLG2) were associated with epidermal maturation. KLK8 showed the strongest correlation with MKI67 mRNA levels and is a potential biomarker for keratinocyte proliferation. The observed gene expression changes correlate well with the current knowledge of physiological reepithelialization. Thus, the gene expression panel described in this paper could be used in patients with impaired healing to identify possible therapeutic targets.
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Affiliation(s)
- Magnus S. Ågren
- Department of Dermatology and Copenhagen Wound Healing Center, Bispebjerg Hospital, University of Copenhagen, 2400 Copenhagen, Denmark
- Digestive Disease Center, Bispebjerg Hospital, University of Copenhagen, 2400 Copenhagen, Denmark
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark
- Correspondence:
| | - Thomas Litman
- Department of Immunology and Microbiology, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark
| | - Jens Ole Eriksen
- Department of Pathology, Zealand University Hospital, 4000 Roskilde, Denmark
| | - Peter Schjerling
- Institute of Sports Medicine Copenhagen, Department of Orthopedic Surgery, Copenhagen University Hospital—Bispebjerg-Frederiksberg, 2400 Copenhagen, Denmark
- Center for Healthy Aging, Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark
| | - Michael Bzorek
- Department of Pathology, Zealand University Hospital, 4000 Roskilde, Denmark
| | - Lise Mette Rahbek Gjerdrum
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark
- Department of Pathology, Zealand University Hospital, 4000 Roskilde, Denmark
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4
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Burian EA, Sabah L, Kirketerp-Møller K, Gundersen G, Ågren MS. Effect of Stabilized Hypochlorous Acid on Re-epithelialization and Bacterial Bioburden in Acute Wounds: A Randomized Controlled Trial in Healthy Volunteers. Acta Derm Venereol 2022; 102:adv00727. [PMID: 35578822 PMCID: PMC9558337 DOI: 10.2340/actadv.v102.1624] [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] [Indexed: 11/16/2022] Open
Abstract
The aim of this randomized controlled trial was to evaluate the wound-healing effect and antimicrobial properties of a novel stabilized hypochlorous acid solution on acute wounds, using a suction blister wound model. One suction blister was raised and de-roofed on each forearm in 20 healthy volunteers. Stabilized hypochlorous acid/control (sterile 0.9% NaCl) solutions were assigned to either wound by randomization. Wounds were irrigated and treated on days 0, 2 and 4. Re-epithelialization was assessed blindly by digital planimetry, and bacterial growth was assessed as the number of colony-forming units cultured from surface swabs. Hypochlorous acid solution increased the degree of re-epithelialization on day 4 by 14% compared with the control solution (95% confidence interval (CI) 6.8–20%, p = 0.00051) and was not inferior (p < 0.0001) to the control solution on day 10 (0.3%, 95% CI –1.3–1.9%). Median bacterial counts were lower with stabilized hypochlorous acid compared with control and were further reduced after irrigation and treatment of both groups on day 4, but remained lower in the stabilized hypochlorous acid group compared with the control group. This study demonstrates immediate and durable antimicrobial action and a beneficial effect on acute wound healing after irrigation and treatment with a stabilized hypochlorous acid formulation.
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Affiliation(s)
| | | | | | | | - Magnus S Ågren
- Department of Dermatology and Copenhagen Wound Healing Center, Bispebjerg Hospital, University of Copenhagen, Nielsine Nielsens Vej 11, DK-2400 Copenhagen, Denmark.
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5
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Tognetti L, Cinotti E, Suppa M, Guazzo R, Habougit C, Santi F, Diet G, Fontaine M, Berot V, Monnier J, Pianigiani E, Del Marmol V, Malvehy J, Perrot JL, Rubegni P. Line field confocal optical coherence tomography: An adjunctive tool in the diagnosis of autoimmune bullous diseases. JOURNAL OF BIOPHOTONICS 2021; 14:e202000449. [PMID: 33583143 DOI: 10.1002/jbio.202000449] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 12/14/2020] [Accepted: 01/27/2021] [Indexed: 05/12/2023]
Abstract
Autoimmune bullous diseases (AIBDs) still represent a considerable a source of morbidity and mortality: early identification of a specific AIBD is often difficult due to overlapping clinical and/or laboratory features and time-consuming invasive laboratory tests. We aimed to investigate the potential role of a new imaging technology, line-field confocal optical coherence tomography (LC-OCT), in the non-invasive diagnosis of AIBDs. LC-OCT was performed at lesional, perilesional and contralateral healthy sites in 30 patients, before histology and direct immunofluorescence. LC-OCT examination was able to identify the level of split (subcorneal/suprabasal/subepidermal/sublamina densa), to provide detailed images of the bulla roof morphology and content (eg, erythrocytes/acantholytic cells/polymorphonucleates). Areas of intra/subepidermal detachment were also detected also at clinically normal perilesional skin sites. LC-OCT can support physicians, real time and at bed-site, in the differential diagnosis of various AIBDs and their mimickers. Moreover, it can be used for the identification of subclinical lesions and therapy tapering.
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Affiliation(s)
- Linda Tognetti
- Dermatology Unit and Skin Bank, Department of Medical, Surgical and Neurosciences, Siena University Hospital, Siena, Italy
| | - Elisa Cinotti
- Dermatology Unit and Skin Bank, Department of Medical, Surgical and Neurosciences, Siena University Hospital, Siena, Italy
| | - Mariano Suppa
- Department of Dermatology, Hôpital Erasme, Université Libre de Bruxelles, Brussels, Belgium
- Institut Jules Bordet, Université Libre de Bruxelles, Brussels, Belgium
| | - Raffaella Guazzo
- Section of Pathology, Department of Medical Biotechnology, University of Siena, Siena, Italy
| | - Cyril Habougit
- Department of Pathology, University Hospital of Saint-Etienne, Saint Etienne, France
| | - Francesco Santi
- Dermatology Unit and Skin Bank, Department of Medical, Surgical and Neurosciences, Siena University Hospital, Siena, Italy
| | - Gwendoline Diet
- Department of Dermatology, Hôpital Erasme, Université Libre de Bruxelles, Brussels, Belgium
| | - Margot Fontaine
- Department of Dermatology, Hôpital Erasme, Université Libre de Bruxelles, Brussels, Belgium
| | - Vincent Berot
- Dermatology Unit, University Hospital of St-Etienne, Saint Etienne, France
| | - Jilliana Monnier
- Dermatology department, AP-HM, Aix-Marseille University, Marseille, France
| | - Elisa Pianigiani
- Dermatology Unit and Skin Bank, Department of Medical, Surgical and Neurosciences, Siena University Hospital, Siena, Italy
| | - Véronique Del Marmol
- Department of Dermatology, Hôpital Erasme, Université Libre de Bruxelles, Brussels, Belgium
| | - Joseph Malvehy
- Melanoma Unit, Department of Dermatology, University of Barcelona, Barcelona, Spain
| | - Jean-Luc Perrot
- Dermatology Unit, University Hospital of St-Etienne, Saint Etienne, France
| | - Pietro Rubegni
- Dermatology Unit and Skin Bank, Department of Medical, Surgical and Neurosciences, Siena University Hospital, Siena, Italy
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Mogensen M, Bojesen S, Israelsen NM, Maria M, Jensen M, Podoleanu A, Bang O, Haedersdal M. Two optical coherence tomography systems detect topical gold nanoshells in hair follicles, sweat ducts and measure epidermis. JOURNAL OF BIOPHOTONICS 2018; 11:e201700348. [PMID: 29611306 DOI: 10.1002/jbio.201700348] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Accepted: 04/02/2018] [Indexed: 06/08/2023]
Abstract
Optical coherence tomography (OCT) is an established imaging technology for in vivo skin investigation. Topical application of gold nanoshells (GNS) provides contrast enhancement in OCT by generating a strong hyperreflective signal from hair follicles and sweat glands, which are the natural skin openings. This study explores the utility of 150 nm diameter GNS as contrast agent for OCT imaging. GNS was massaged into skin and examined in four skin areas of 11 healthy volunteers. A commercial OCT system and a prototype with 3 μm resolution (UHR-OCT) were employed to detect potential benefits of increased resolution and variability in intensity generated by the GNS. In both OCT-systems GNS enhanced contrast from hair follicles and sweat ducts. Highest average penetration depth of GNS was in armpit 0.64 mm ± SD 0.17, maximum penetration depth was 1.20 mm in hair follicles and 15 to 40 μm in sweat ducts. Pixel intensity generated from GNS in hair follicles was significantly higher in UHR-OCT images (P = .002) and epidermal thickness significantly lower 0.14 vs 0.16 mm (P = .027). This study suggests that GNSs are interesting candidates for increasing sensitivity in OCT diagnosis of hair and sweat gland disorders and demonstrates that choice of OCT systems influences results.
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Affiliation(s)
- Mette Mogensen
- Department of Dermatology, Bispebjerg Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Sophie Bojesen
- Department of Dermatology, Bispebjerg Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Niels M Israelsen
- DTU Fotonik, Department of Photonics Engineering, Technical University of Denmark, Kongens Lyngby, Denmark
| | - Michael Maria
- DTU Fotonik, Department of Photonics Engineering, Technical University of Denmark, Kongens Lyngby, Denmark
| | - Mikkel Jensen
- DTU Fotonik, Department of Photonics Engineering, Technical University of Denmark, Kongens Lyngby, Denmark
| | - Adrian Podoleanu
- School of Physical Sciences, Ingram Building, University of Kent, Canterbury, UK
| | - Ole Bang
- DTU Fotonik, Department of Photonics Engineering, Technical University of Denmark, Kongens Lyngby, Denmark
- NKT Photonics A/S, Birkerød, Denmark
| | - Merete Haedersdal
- Department of Dermatology, Bispebjerg Hospital, University of Copenhagen, Copenhagen, Denmark
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7
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Narayanamurthy V, Padmapriya P, Noorasafrin A, Pooja B, Hema K, Firus Khan AY, Nithyakalyani K, Samsuri F. Skin cancer detection using non-invasive techniques. RSC Adv 2018; 8:28095-28130. [PMID: 35542700 PMCID: PMC9084287 DOI: 10.1039/c8ra04164d] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Accepted: 07/22/2018] [Indexed: 12/22/2022] Open
Abstract
Skin cancer is the most common form of cancer and is globally rising. Historically, the diagnosis of skin cancers has depended on various conventional techniques which are of an invasive manner. A variety of commercial diagnostic tools and auxiliary techniques are available to detect skin cancer. This article explains in detail the principles and approaches involved for non-invasive skin cancer diagnostic methods such as photography, dermoscopy, sonography, confocal microscopy, Raman spectroscopy, fluorescence spectroscopy, terahertz spectroscopy, optical coherence tomography, the multispectral imaging technique, thermography, electrical bio-impedance, tape stripping and computer-aided analysis. The characteristics of an ideal screening test are outlined, and the authors pose several points for clinicians and scientists to consider in the evaluation of current and future studies of skin cancer detection and diagnosis. This comprehensive review critically analyses the literature associated with the field and summarises the recent updates along with their merits and demerits.
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Affiliation(s)
- Vigneswaran Narayanamurthy
- InnoFuTech No: 42/12, 7th Street, Vallalar Nagar, Pattabiram Chennai Tamil Nadu 600072 India
- Faculty of Electrical and Electronics Engineering, University Malaysia Pahang Pekan 26600 Malaysia
| | - P Padmapriya
- Department of Biomedical Engineering, Veltech Multitech Dr. RR & Dr. SR Engineering College Chennai 600 062 India
| | - A Noorasafrin
- Department of Biomedical Engineering, Veltech Multitech Dr. RR & Dr. SR Engineering College Chennai 600 062 India
| | - B Pooja
- Department of Biomedical Engineering, Veltech Multitech Dr. RR & Dr. SR Engineering College Chennai 600 062 India
| | - K Hema
- Department of Biomedical Engineering, Veltech Multitech Dr. RR & Dr. SR Engineering College Chennai 600 062 India
| | - Al'aina Yuhainis Firus Khan
- Department of Biomedical Science, Faculty of Allied Health Sciences, International Islamic University Malaysia 25200 Kuantan Pahang Malaysia
| | - K Nithyakalyani
- Department of Biomedical Engineering, Veltech Multitech Dr. RR & Dr. SR Engineering College Chennai 600 062 India
| | - Fahmi Samsuri
- Faculty of Electrical and Electronics Engineering, University Malaysia Pahang Pekan 26600 Malaysia
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8
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Silver FH, Shah RG. Mechanical spectroscopy and imaging of skin components in vivo: Assignment of the observed moduli. Skin Res Technol 2018; 25:47-53. [DOI: 10.1111/srt.12594] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/28/2018] [Indexed: 11/29/2022]
Affiliation(s)
- F. H. Silver
- Department of Pathology and Laboratory Medicine; Robert Wood Johnson Medical School, Rutgers; The State University of New Jersey; Piscataway NJ USA
- OptoVibronex, LLC.; Mt. Bethel PA USA
| | - R. G. Shah
- Graduate Program in Biomedical Engineering, Rutgers; The State University of New Jersey; Piscataway NJ USA
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9
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Bay L, Kragh KN, Eickhardt SR, Poulsen SS, Gjerdrum LMR, Ghathian K, Calum H, Ågren MS, Bjarnsholt T. Bacterial Aggregates Establish at the Edges of Acute Epidermal Wounds. Adv Wound Care (New Rochelle) 2018; 7:105-113. [PMID: 29675336 DOI: 10.1089/wound.2017.0770] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Accepted: 12/09/2017] [Indexed: 12/24/2022] Open
Abstract
Objective: The bacterial composition and distribution were evaluated in acute standardized epidermal wounds and uninjured skin by a molecular in situ technology benchmarked to conventional culturing. This was done to reveal whether bacterial biofilm is present in acute wounds. Approach: On the buttock of 26 healthy volunteers, 28 suction blisters were made and de-roofed. Four wounds were biopsied immediately after wounding, whereas the remaining 24 wounds were treated daily with sterile deionized water and covered with a moisture-retaining dressing. On day 4 post-wounding, swabs were obtained for culturing from the wounds and adjacent skin, and the wounds including adjacent skin were excised. Tissue sections were stained with peptide nucleic acid (PNA) fluorescence in situ hybridization (FISH) probes, counterstained by 4',6-diamidino-2-phenylindole, and evaluated by confocal laser scanning microscopy (CLSM). Results: No bacterial aggregates were detected at day 0. At day 4, coagulase-negative staphylococci (CoNS) were the sole bacteria identified by CLSM/PNA-FISH and culturing. CoNS was isolated from 78% of the wound swabs and 48% of the skin swabs. Bacterial aggregates (5-150 μm) were detected by PNA-FISH/CLSM in the split stratum corneum and fibrin deposits at the wound edges and in the stratum corneum and the hair follicles of the adjacent skin. The bacterial aggregates were more common (p = 0.0084) and larger (p = 0.0083) at wound edges than in the adjacent skin. Innovation: Bacterial aggregates can establish in all wound types and may have clinical significance in acute wounds. Conclusion: Bacterial aggregates were observed at the edges of acute epidermal wounds, indicating initiated establishment of a biofilm.
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Affiliation(s)
- Lene Bay
- Costerton Biofilm Center, Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
| | - Kasper N. Kragh
- Costerton Biofilm Center, Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
| | - Steffen R. Eickhardt
- Costerton Biofilm Center, Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
| | - Steen S. Poulsen
- Endocrinology, Department of Biomedical Science, University of Copenhagen, Copenhagen, Denmark
| | | | - Khaled Ghathian
- Department of Clinical Microbiology, Hvidovre Hospital, Hvidovre, Denmark
| | - Henrik Calum
- Department of Clinical Microbiology, Hvidovre Hospital, Hvidovre, Denmark
| | - Magnus S. Ågren
- Copenhagen Wound Healing Center and Digestive Disease Center, Bispebjerg Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Thomas Bjarnsholt
- Costerton Biofilm Center, Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
- Department of Clinical Microbiology, Rigshospitalet, Copenhagen, Denmark
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10
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Larsen HF, Ahlström MG, Gjerdrum LMR, Mogensen M, Ghathian K, Calum H, Sørensen AL, Forman JL, Vandeven M, Holerca MN, Du-Thumm L, Jorgensen LN, Ågren MS. Noninvasive measurement of reepithelialization and microvascularity of suction-blister wounds with benchmarking to histology. Wound Repair Regen 2018; 25:984-993. [DOI: 10.1111/wrr.12605] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Accepted: 11/13/2017] [Indexed: 12/23/2022]
Affiliation(s)
- Heidi F. Larsen
- Department of Dermatology and Copenhagen Wound Healing Center, Bispebjerg Hospital; University of Copenhagen; Copenhagen Denmark
| | - Malin G. Ahlström
- Department of Dermatology and Copenhagen Wound Healing Center, Bispebjerg Hospital; University of Copenhagen; Copenhagen Denmark
| | | | - Mette Mogensen
- Department of Dermatology and Copenhagen Wound Healing Center, Bispebjerg Hospital; University of Copenhagen; Copenhagen Denmark
| | - Khaled Ghathian
- Department of Clinical Microbiology, Hvidovre Hospital; University of Copenhagen; Copenhagen Denmark
| | - Henrik Calum
- Department of Clinical Microbiology, Hvidovre Hospital; University of Copenhagen; Copenhagen Denmark
| | - Anne L. Sørensen
- Section of Biostatistics, Department of Public Health; University of Copenhagen; Copenhagen Denmark
| | - Julie L. Forman
- Section of Biostatistics, Department of Public Health; University of Copenhagen; Copenhagen Denmark
| | | | | | | | - Lars N. Jorgensen
- Digestive Disease Center, Bispebjerg Hospital; University of Copenhagen; Copenhagen Denmark
| | - Magnus S. Ågren
- Department of Dermatology and Copenhagen Wound Healing Center, Bispebjerg Hospital; University of Copenhagen; Copenhagen Denmark
- Digestive Disease Center, Bispebjerg Hospital; University of Copenhagen; Copenhagen Denmark
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