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Delgado D, Beitia M, Mercader Ruiz J, Sánchez P, Montoya-Alzola M, Fiz N, Sánchez M. A Novel Fibrin Matrix Derived from Platelet-Rich Plasma: Protocol and Characterization. Int J Mol Sci 2024; 25:4069. [PMID: 38612879 PMCID: PMC11012499 DOI: 10.3390/ijms25074069] [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: 02/26/2024] [Revised: 03/31/2024] [Accepted: 04/05/2024] [Indexed: 04/14/2024] Open
Abstract
Although fibrin matrices derived from Platelet-Rich Plasma (PRP) are widely used in regenerative medicine, they have some limitations that can hinder their application. Modifying the composition of the PRP-derived fibrin matrix may improve its properties, making it suitable for certain medical uses. Three types of fibrin matrices were obtained: a PRP-derived fibrin matrix (FM), a PRP-derived fibrin matrix with a high fibrinogen content and platelets (FM-HFP) and a PRP-derived fibrin matrix with a high fibrinogen content (FM-HF). The fibrinogen levels, biomechanical properties and cell behavior were analyzed. The presence of platelets in the FM-HFP generated an inconsistent fibrin matrix that was discarded for the rest of the analysis. The fibrinogen levels in the FM-FH were higher than those in the FM (p < 0.0001), with a concentration factor of 6.86 ± 1.81. The values of clotting and swelling achieved using the FM-HF were higher (p < 0.0001), with less clot shrinkage (p < 0.0001). The FM had a significantly higher stiffness and turned out to be the most adherent composition (p = 0.027). In terms of cell viability, the FM-HF showed less cell proliferation but higher live/dead ratio values (p < 0.01). The increased fibrinogen and platelet removal in the FM-HF improved its adhesion and other biomechanical properties without affecting cell viability.
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Affiliation(s)
- Diego Delgado
- Advanced Biological Therapy Unit, Hospital Vithas Vitoria, 01008 Vitoria-Gasteiz, Spain; (D.D.); (M.B.); (J.M.R.); (P.S.)
| | - Maider Beitia
- Advanced Biological Therapy Unit, Hospital Vithas Vitoria, 01008 Vitoria-Gasteiz, Spain; (D.D.); (M.B.); (J.M.R.); (P.S.)
| | - Jon Mercader Ruiz
- Advanced Biological Therapy Unit, Hospital Vithas Vitoria, 01008 Vitoria-Gasteiz, Spain; (D.D.); (M.B.); (J.M.R.); (P.S.)
| | - Pello Sánchez
- Advanced Biological Therapy Unit, Hospital Vithas Vitoria, 01008 Vitoria-Gasteiz, Spain; (D.D.); (M.B.); (J.M.R.); (P.S.)
- Arthroscopic Surgery Unit, Hospital Vithas Vitoria, 01008 Vitoria-Gasteiz, Spain; (M.M.-A.); (N.F.)
| | - Marta Montoya-Alzola
- Arthroscopic Surgery Unit, Hospital Vithas Vitoria, 01008 Vitoria-Gasteiz, Spain; (M.M.-A.); (N.F.)
| | - Nicolás Fiz
- Arthroscopic Surgery Unit, Hospital Vithas Vitoria, 01008 Vitoria-Gasteiz, Spain; (M.M.-A.); (N.F.)
| | - Mikel Sánchez
- Advanced Biological Therapy Unit, Hospital Vithas Vitoria, 01008 Vitoria-Gasteiz, Spain; (D.D.); (M.B.); (J.M.R.); (P.S.)
- Arthroscopic Surgery Unit, Hospital Vithas Vitoria, 01008 Vitoria-Gasteiz, Spain; (M.M.-A.); (N.F.)
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Castro JB, Oliveira BGB, Alves GG, Trott A, Houneau LJ, Kang HC, Ferreira MA. Effects of plasma rich in growth factors on wound healing in patients with venous ulcers. Regen Ther 2024; 25:284-289. [PMID: 38304616 PMCID: PMC10832287 DOI: 10.1016/j.reth.2024.01.002] [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: 12/06/2023] [Revised: 12/28/2023] [Accepted: 01/18/2024] [Indexed: 02/03/2024] Open
Abstract
Introduction Significant evidence suggests that plasma-rich in growth factors (PRGF) favor the repair of chronic wounds, enabling a rapid return to functionality. However, components of PRGF and their effects on persistent ulcers and epithelial tissues are not well characterized. The goals of this research were to analyze the biological properties of platelet-derived factors, to examine their effectiveness on healing of venous ulcers, and to establish a correlation with clinical and sociodemographic data. Methods For the preparation of PRGF, the centrifugation technique was used, obtaining a 100 % autologous and biocompatible blood sample that was treated with sodium citrate and calcium chloride. The patients were attended weekly at the outpatient clinic for nursing consultation and wound dressing changes, with PRGF application every 15 days. The treatment protocols are described, and follow-up results are reported. Results Initially, the patients' ulcers ranged in sizes from 4 to 84 cm2. After 12 weeks of treatment, there was a significant mean reduction of 46.2 % in ulcer area. At baseline, epithelial tissue was absent in all venous ulcers, but its presence grew significantly by the treatment period. However, the reduction of the area of the ulcers did not show significant correlation with the concentrations of the patient's growth factors. Conclusions Using the established protocol for PRGF isolating, it was possible to obtain a product with the presence of the six growth factors related to tissue regeneration and observed a positive response on wound healing following treatment of venous ulcers, with capacity to accelerate re-epithelialization and restore the skin functional integrity.
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Affiliation(s)
- Joyce B.A. Castro
- Antônio Rodrigues de Mello Paramyloidosis Study Center, Clementino Fraga Filho University Hospital, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | | | - Gutemberg G. Alves
- Molecular and Cell Biology Department, Fluminense Federal University, Niteroi, RJ, Brazil
| | - Alexis Trott
- School of Nursing, Fluminense Federal University, Niterói, RJ, Brazil
| | | | - Hye Chung Kang
- Department of Pathology, Fluminense Federal University, Niterói, RJ, Brazil
| | - Márcia A. Ferreira
- Fundamentals of Nursing Department, Nursing School Anna Nery, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
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3
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García A, Navarro MR, Ramirez A, Pino A, Navarro A, Moles I, Gallego E, Anitua E. Plasma Rich in Growth Factors as an Adjuvant Treatment for the Management of Frontal Fibrosing Alopecia: A Retrospective Observational Clinical Study. J Cutan Med Surg 2023; 27:340-349. [PMID: 37233603 DOI: 10.1177/12034754231177599] [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] [Indexed: 05/27/2023]
Abstract
BACKGROUND Frontal fibrosing alopecia (FFA) is a scarring alopecia in which the exact etiopathogenesis has not been completely elucidated and the available treatments are not very effective. Plasma rich in growth factors (PRGF) has shown to induce folliculogenesis in hair loss related disorders. However, the scientific evidence when facing FFA is scarce. OBJECTIVES The aim of this study was to retrospectively analyze the adjuvant use of PRGF compared to the conventional treatment in the management of FFA. METHODS Participants with clinically diagnosed FFA who had been treated with either conventional therapy (Control Group) or conventional therapy combined with PRGF (PRGF Group) were identified from the center's medical records. The clinical assessment was based on the "Frontal Fibrosing Alopecia Severity Score" (FFASS), which was fulfilled during a period of two and 4 years. RESULTS This study included 118 patients with clinically diagnosed FFA (Control Group: 57 and PRGF Group: 61). No adverse effects related to the treatments were observed. Both treatments showed to halt the steady progression of hair loss compared to baseline. PRGF treatment also induced significant hair regrowth compared to the Control Group. The scalp inflammation was reduced in response to treatments. The FFASS score indicated that PRGF Group improved the symptoms and severity of FFA in a significant manner. CONCLUSIONS The adjuvant use of PRGF may exert long-term beneficial effects on hair loss reduction and might reduce the symptoms and severity of FFA.
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Affiliation(s)
| | - M R Navarro
- Centro Dermatológico Estético, Alicante, Spain
| | - Ana Ramirez
- Centro Dermatológico Estético, Alicante, Spain
| | - Ander Pino
- BTI Biotechnology Institute, Vitoria, Spain
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4
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Sharma A, Wu L, Bloom S, Stanga P, Figueroa MS, Govetto A, Mirajkar A, Nagpal M, Mehrotra N, Sharma A, Rezaei KA. RWC Update: Intraoperative Fluorescein Angiography, Plasma Rich in Growth Factor as Adjuvant to Vitrectomy in High Myopic Retinal Detachment Associated With Full-Thickness Macular Hole, Giant Tear of the Retinal Pigment Epithelium. Ophthalmic Surg Lasers Imaging Retina 2023; 54:259-264. [PMID: 37184990 DOI: 10.3928/23258160-20230412-01] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
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5
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García-Millan C, Pino A, Rodrigues R, Segurado-Miravalles G, Alegre-Sánchez A, Jaén P, Anitua E. An Autologous Topical Serum Derived from Platelet-Rich Plasma Therapy for the Management of Sensitive Skin Alterations: A Case Series Report. Clin Cosmet Investig Dermatol 2022; 15:2077-2086. [PMID: 36199385 PMCID: PMC9528915 DOI: 10.2147/ccid.s379323] [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: 08/23/2022] [Accepted: 09/20/2022] [Indexed: 11/24/2022]
Abstract
Background Although the underlying pathophysiology of sensitive skin remains unknown, it presents clinical symptoms like erythema, burning and dryness associated with other inflammatory dermatoses such as dermatitis or rosacea. Objective The aim of the present report was to provide preliminary data about the efficacy of Endoret-Serum (ES) as an autologous therapy for the topical management of sensitive skin alterations. Materials and Methods Five patients underwent a daily topical ES treatment that was maintained for three months. Clinical assessment was carried out using validated dermatological surveys (DLQI, IGA, Likert, PGI-I). Additionally, skin hydration measurement and high-resolution topographic and reflectance confocal imaging analysis were carried out. Results No adverse events were observed during the treatment. At the end of the follow-up period, surveys highlighted a significant therapeutic effect compared to baseline. Skin hydration was also improved, and topographic images showed a decrease in patient’s underlying inflammatory and vascular condition. Conclusion This preliminary report suggests that Endoret-Serum may be useful in the management of clinical symptoms derived from sensitive skin alterations.
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Affiliation(s)
| | - Ander Pino
- BTI Biotechnology Institute, Vitoria, Spain
| | | | | | | | - Pedro Jaén
- Grupo de Dermatología Pedro Jaén, Madrid, Spain
- University Hospital Ramon y Cajal, Madrid, Spain
| | - Eduardo Anitua
- BTI Biotechnology Institute, Vitoria, Spain
- Correspondence: Eduardo Anitua, BTI Biotechnology Institute, Jacinto Quincoces 39, Vitoria, Spain, Email
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Delivery systems for platelet derived growth factors in wound healing: A review of recent developments and global patent landscape. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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7
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Miguel MMV, Mathias-Santamaria IF, Rossato A, Ferraz LFF, Rangel TP, Casarin RCV, Tatakis DN, Santamaria MP. Enamel matrix derivative effects on palatal mucosa wound healing: Randomized clinical trial. J Periodontal Res 2021; 56:1213-1222. [PMID: 34541683 DOI: 10.1111/jre.12934] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 09/06/2021] [Indexed: 12/25/2022]
Abstract
BACKGROUND This study was conducted to evaluate the clinical, immunologic, and patient-centered outcomes of enamel matrix protein derivative (EMD) on excisional wounds in palatal mucosa. MATERIALS Forty-four patients in need of ridge preservation were randomly allocated into two groups: control group (n = 22): open palatal wound after free gingival graft (FGG) harvest and EMD group (n = 22): open palatal wound after FGG harvest that received 0.3 ml of EMD. Clinical and patient-centered parameters were analyzed for 3 months post-treatment. Wound fluid levels of inflammatory markers were assessed 3 and 7 days postoperatively. RESULTS No significant inter-group difference was observed in remaining wound area and re-epithelialization. EMD and control groups achieved wound closure and re-epithelialization 30 days postoperatively (p < .001), without inter-group differences. Similarly, number of analgesics and Oral Health Impact Profile scores did not present significant inter-group differences (p > .05). EMD appeared to selectively modulate wound fluid levels of monocyte chemoattractant protein-1, macrophage inflammatory protein-1α, matrix metallopeptidase 9, and tissue inhibitor of metalloproteinases-2. CONCLUSION Within the limits of the present study, it can be concluded that EMD application to excisional palatal wounds using the investigated protocol does not provide clinical healing benefits, despite an apparent modulation of selected inflammatory markers.
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Affiliation(s)
- Manuela Maria Viana Miguel
- São Paulo State University (UNESP), Division of Periodontics, Institute of Science and Technology, São José dos Campos, Brazil
| | - Ingrid Fernandes Mathias-Santamaria
- São Paulo State University (UNESP), Division of Periodontics, Institute of Science and Technology, São José dos Campos, Brazil.,Division of Operative Dentistry, Department of General Dentistry, University of Maryland School of Dentistry, Baltimore, Maryland, USA
| | - Amanda Rossato
- São Paulo State University (UNESP), Division of Periodontics, Institute of Science and Technology, São José dos Campos, Brazil
| | - Laís Fernanda Ferreira Ferraz
- São Paulo State University (UNESP), Division of Periodontics, Institute of Science and Technology, São José dos Campos, Brazil
| | - Thiago Perez Rangel
- Department of Prosthodontics and Periodontics, Division of Periodontics, Piracicaba Dental School, Piracicaba, Brazil
| | - Renato Corrêa Viana Casarin
- Department of Prosthodontics and Periodontics, Division of Periodontics, Piracicaba Dental School, Piracicaba, Brazil
| | - Dimitris N Tatakis
- College of Dentistry, Division of Periodontology, The Ohio State University (OSU), Columbus, Ohio, USA
| | - Mauro Pedrine Santamaria
- São Paulo State University (UNESP), Division of Periodontics, Institute of Science and Technology, São José dos Campos, Brazil.,College of Dentistry - Lexington, University of Kentucky, Lexington, Kentucky, USA
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Anitua E, de la Sen-Corcuera B, Orive G, Sánchez-Ávila RM, Heredia P, Muruzabal F, Merayo-Lloves J. Progress in the use of plasma rich in growth factors in ophthalmology: from ocular surface to ocular fundus. Expert Opin Biol Ther 2021; 22:31-45. [PMID: 34275392 DOI: 10.1080/14712598.2021.1945030] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Introduction: The use of blood derivatives and especially Plasma rich in growth factors (PRGF), for regenerative purposes has been a common trend along the last decades in the field of oral surgery, dermatology, orthopedics, and more recently in ophthalmology.Areas covered: PRGF is a type of platelet-rich plasma that is being explored for the treatment of ocular injuries. The present review article highlights 50 ophthalmology-related publications about the application of PRGF in the treatment of acute and chronic pathologies in ophthalmology as well as most relevant challenges and future prospects.Expert opinion: PRGF technology provides a wide range of formulations that can be used therapeutically in many different acute and chronic ocular pathologies. In addition to eye drops enriched with autologous growth factors, PRGF enables the preparation of both immunologically safe and fibrin-based formulations. Recent advances in the field have promoted PRGF storage for 12 months under freezing conditions, its daily use for 7 days at room temperature and the freeze-dried formulation. The thermally treated immunosafe formulation has shown promising clinical results for the treatment of several diseases such as Sjögren syndrome, graft versus host disease or cicatrizing conjunctivitis. In addition, several fibrin formulations have been preclinically evaluated and clinically incorporated as an adjuvant to ocular surface or glaucoma surgeries, dermal fat graft procedures, limbal stem cell expansion and retinal surgeries. The present review explores the latest scientific and clinical data, current challenges, and main prospects of this technology for the treatment of several ocular injuries.
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Affiliation(s)
- E Anitua
- Regenerative medicine, Biotechnology Institute (BTI), Vitoria, Spain.,Regenerative medicine, University Institute for Regenerative Medicine and Oral Implantology (UIRMI), Vitoria, Spain
| | - B de la Sen-Corcuera
- Regenerative medicine, Biotechnology Institute (BTI), Vitoria, Spain.,Regenerative medicine, University Institute for Regenerative Medicine and Oral Implantology (UIRMI), Vitoria, Spain
| | - G Orive
- Regenerative medicine, Biotechnology Institute (BTI), Vitoria, Spain.,Regenerative medicine, University Institute for Regenerative Medicine and Oral Implantology (UIRMI), Vitoria, Spain.,NanoBioCel Group, School of Pharmacy, University of the Basque Country (UPV/EHU), Oviedo, Vitoria-Gasteiz, Spain
| | - R M Sánchez-Ávila
- Regenerative medicine, Biotechnology Institute (BTI), Vitoria, Spain
| | - P Heredia
- Regenerative medicine, Biotechnology Institute (BTI), Vitoria, Spain.,Regenerative medicine, University Institute for Regenerative Medicine and Oral Implantology (UIRMI), Vitoria, Spain
| | - F Muruzabal
- Regenerative medicine, Biotechnology Institute (BTI), Vitoria, Spain.,Regenerative medicine, University Institute for Regenerative Medicine and Oral Implantology (UIRMI), Vitoria, Spain
| | - J Merayo-Lloves
- Instituto Universitario Fernández-Vega, Fundación de Investigación Oftalmológica, Universidad de Oviedo, Spain
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9
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Anitua E, Muñoz V, Aspe L, Tierno R, García-Salvador A, Goñi-de-Cerio F, Pino A. In vitro and in vivo Effect of Platelet-Rich Plasma-Based Autologous Topical Serum on Cutaneous Wound Healing. Skin Pharmacol Physiol 2021; 35:51-64. [PMID: 34247175 DOI: 10.1159/000517195] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Accepted: 05/01/2021] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Skin injury and wound healing is an inevitable event during lifetime. However, several complications may hamper the regeneration of the cutaneous tissue and lead to a chronic profile that prolongs patient recovery. Platelet-rich plasma is rising as an effective and safe alternative to the management of wounds. However, this technology presents some limitations such as the need for repeated blood extractions and health-care interventions. OBJECTIVE The aim of this study was to assess the use of an endogenous and storable topical serum (ES) derived from plasma rich in growth factors promoting wound healing, and to obtain preliminary data regarding its clinical and experimental effect over ulcerated skin models and patient care. METHODS Human dermal fibroblast and 3D organotypic ulcerated skin models were used to assess ES over the main mechanisms of wound healing including cell migration, edge contraction, collagen synthesis, tissue damage, extracellular matrix remodeling, cell death, metabolic activity, and histomorphometry analysis. Additionally, 4 patients suffering from skin wounds were treated and clinically assessed. RESULTS ES promoted dermal fibroblast migration, wound edge contraction, and collagen synthesis. When topically applied, ES increased collagen and elastin deposition and reduced tissue damage. The interstitial edema, structural integrity, and cell activity were also maintained, and apoptotic levels were reduced. Patients suffering from hard-to-heal wounds of different etiologies were treated with ES, and the ulcers healed completely within few weeks with no reported adverse events. CONCLUSION This preliminary study suggests that ES might promote cutaneous wound healing and may be useful for accelerating the re-epithelization of skin ulcers.
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Affiliation(s)
- Eduardo Anitua
- University Institute for Regenerative Medicine and Oral Implantology (UIRMI), Vitoria, Spain.,BTI Biotechnology Institute, Vitoria, Spain
| | | | - Libe Aspe
- University Hospital of Araba (HUA), Vitoria, Spain
| | - Roberto Tierno
- University Institute for Regenerative Medicine and Oral Implantology (UIRMI), Vitoria, Spain.,BTI Biotechnology Institute, Vitoria, Spain
| | - Adrian García-Salvador
- GAIKER Technology Centre, Basque Research and Technology Alliance (BRTA), Zamudio, Spain
| | - Felipe Goñi-de-Cerio
- GAIKER Technology Centre, Basque Research and Technology Alliance (BRTA), Zamudio, Spain
| | - Ander Pino
- University Institute for Regenerative Medicine and Oral Implantology (UIRMI), Vitoria, Spain, .,BTI Biotechnology Institute, Vitoria, Spain,
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10
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Anitua E, Pino A, Aspe L, Martínez M, García A, Goñi F, Troya M. Anti-inflammatory effect of different PRGF formulations on cutaneous surface. J Tissue Viability 2021; 30:183-189. [PMID: 33712331 DOI: 10.1016/j.jtv.2021.02.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 02/24/2021] [Accepted: 02/28/2021] [Indexed: 12/20/2022]
Abstract
Cutaneous autoimmune and inflammatory diseases are a major burden of global disease and many lack effective treatments that can derive in different dermatoses like atopic dermatitis. Despite the increase prevalence and the high health-care costs worldwide, the heterogeniety and multifactoriality of these diseases mean that effective treatment options are scarce. Plasma rich in growth factors (PRGF) technology could be an alternative approach that may help in the management of this cutaneous condition. The aim of this study was to assess the effect of two different PRGF formulations (just activated and autologous topical serum (ATS)) for the management of skin inflammation. Additionally, ATS was assessed over two patients suffering from radiotherapy induced dermatitis. Human organotypic skin explant cultures (hOSECs) were used as human skin models. To induce atopic dermatitis-like conditions, skin explants were treated with both interleukin-4 (IL-4) and interleukin-13 (IL-13). PRGF and ATS were intradermally and topically applied, respectively. Metabolic activity, reactive oxigen species (ROS), necrosis and inflammatory cytokine production were determined. Both PRGF formulations increased tissue viability and significantly reduced the excessive free radical accumulation and the cutaneous cytokine production such as TNF-α and IL-1β. Case reports showed a positive response after ATS treatment in terms of skin quality improvement, local erythema decrease and burning and itching amelioration. The oedema, swelling and desquamation caused by radiation induced dermatitis was also reduced and the patients referred ceased pruritus and pain. This preliminary study suggests that PRGF might aid in the management of inflammatory skin conditions.
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Affiliation(s)
- Eduardo Anitua
- BTI-Biotechnology Institute, Vitoria, Spain; University Institute for Regenerative Medicine & Oral Implantology, UIRMI (UPV/EHU-Fundación Eduardo Anitua), Vitoria, Spain.
| | - Ander Pino
- BTI-Biotechnology Institute, Vitoria, Spain; University Institute for Regenerative Medicine & Oral Implantology, UIRMI (UPV/EHU-Fundación Eduardo Anitua), Vitoria, Spain
| | - Libe Aspe
- University Hospital of Araba (HUA), Vitoria, Spain
| | | | - Adrian García
- GAIKER Technology Centre, Basque Research and Technology Alliance (BRTA), Zamudio, Spain
| | - Felipe Goñi
- GAIKER Technology Centre, Basque Research and Technology Alliance (BRTA), Zamudio, Spain
| | - María Troya
- BTI-Biotechnology Institute, Vitoria, Spain; University Institute for Regenerative Medicine & Oral Implantology, UIRMI (UPV/EHU-Fundación Eduardo Anitua), Vitoria, Spain
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11
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Figueroa MS, Mora Cantallops A, Virgili G, Govetto A. Long-term results of autologous plasma as adjuvant to pars plana vitrectomy in the treatment of high myopic full-thickness macular holes. Eur J Ophthalmol 2020; 31:2612-2620. [DOI: 10.1177/1120672120960340] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Background: To analyse the feasibility and efficacy of a novel autologous plasma rich in growth factor (PRGF) preparation as adjuvant to pars plana vitrectomy and internal limiting membrane peel in high myopic full-thickness macular hole (FTMH). Methods: Single-centre, single-surgeon retrospective chart review of consecutive patients with high myopic FTMH who underwent surgery with a minimum follow-up of 12 months. Patients were divided in group 1 (naïve) and group 2 (persistent). Quantitative and qualitative variables were analysed, compared among groups and correlated with best corrected visual acuity (BCVA). Results: Postoperatively, FTMH resolved in 28/31 eyes in group 1 (90%) and in 10/11 eyes in group 2 (91%), without significant differences ( p = 0.954). None of the preoperative anatomical variables analysed showed significant association with preoperative BCVA. Intraoperatively, no significant complications were registered. Postoperatively, BCVA improved significantly in the studied population ( p < 0.001). Preoperative factors associated with better postoperative BCVA were the presence of intraretinal cystoid spaces ( p = 0.028) and elevated FTMH borders ( p = 0.005). Preoperative dome-shaped macula was associated with significantly worse postoperative BCVA ( p = 0.049). Conclusion: The use of PRGF as adjuvant to vitrectomy showed to be reproducible, straightforward and efficient, with primary anatomical success rate comparable to other surgical approaches and lower risk of complications.
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Affiliation(s)
- Marta S Figueroa
- Retina Division, Ophthalmology Department, Ramon y Cajal University Hospital, Madrid, Spain
- Alcala University, Madrid, Spain
- Vissum, Madrid, Spain
| | - Arnau Mora Cantallops
- Retina Division, Ophthalmology Department, Ramon y Cajal University Hospital, Madrid, Spain
| | - Gianni Virgili
- Ophthalmology Department, Careggi University Hospital, University of Florence, Firenze, Italy
| | - Andrea Govetto
- Ophthalmology Department, Fatebenefratelli-Oftalmico Hospital, ASST Fatebenefratelli-Sacco, Milan, Italy
- Vitreoretinal Division, Bristol Eye Hospital, University Hospitals Bristol NHS Foundation Trust, Bristol, UK
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12
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Miguel MMV, Mathias-Santamaria IF, Rossato A, Ferraz LFF, Figueiredo-Neto AM, de Marco AC, Casarin RCV, Wallet SM, Tatakis DN, Mathias MA, Santamaria MP. Microcurrent electrotherapy improves palatal wound healing: Randomized clinical trial. J Periodontol 2020; 92:244-253. [PMID: 32783220 DOI: 10.1002/jper.20-0122] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Revised: 05/07/2020] [Accepted: 05/31/2020] [Indexed: 12/15/2022]
Abstract
BACKGROUND This study was conducted to assess the clinical, immunological, and patient-centered outcomes of microcurrent electrotherapy on palatal wound healing. METHODS This was a parallel, double-masked randomized clinical trial, in which 53 patients with ridge preservation indications were selected and randomly assigned to one of two groups. In the control (sham) group (n = 27), palatal wounds, after free gingival grafts (FGG) harvest, received sham application of electrotherapy. In the test (electrotherapy treatment [EE]) group (n = 26), palatal wounds, after FGG harvest, received application of microcurrent electrotherapy protocol. Clinical parameters, patient-centered outcomes, and inflammatory markers were evaluated, up to 90 days postoperatively. RESULTS The EE group achieved earlier wound closure (P <0.001) and epithelialization (P <0.05; P = 0.03) at 7 and 14 days after harvest when compared with the sham group. Painful symptomatology was reported less frequently in the EE group than in the sham group at 3-day follow-up (P = 0.008). Likewise, an improvement in Oral Health Impact Profile was reported 2 days after the procedure by the EE group (P = 0.04). In addition, favorable modulation of inflammatory wound healing markers occurred when electrotherapy was applied. CONCLUSION Within the limits of the present study, it can be concluded that the use of a low-intensity electrotherapy protocol may accelerate palatal wound healing and decrease patient discomfort after FGG harvest.
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Affiliation(s)
- Manuela Maria Viana Miguel
- Division of Periodontics, Unesp - São Paulo State University, Institute of Science and Technology, São José dos Campos, São Paulo, Brazil
| | - Ingrid Fernandes Mathias-Santamaria
- Division of Periodontics, Unesp - São Paulo State University, Institute of Science and Technology, São José dos Campos, São Paulo, Brazil.,National Institute of Science and Technology-Complex Fluids, São Paulo, Brazil
| | - Amanda Rossato
- Division of Periodontics, Unesp - São Paulo State University, Institute of Science and Technology, São José dos Campos, São Paulo, Brazil
| | - Laís Fernanda Ferreira Ferraz
- Division of Periodontics, Unesp - São Paulo State University, Institute of Science and Technology, São José dos Campos, São Paulo, Brazil
| | | | - Andrea Carvalho de Marco
- Division of Periodontics, Unesp - São Paulo State University, Institute of Science and Technology, São José dos Campos, São Paulo, Brazil
| | - Renato Corrêa Viana Casarin
- Department of Prosthodontics and Periodontics, Division of Periodontics, University of Campinas Piracicaba Dental School Piracicaba, São Paulo, Brazil
| | | | - Dimitris N Tatakis
- College of Dentistry, Division of Periodontology, The Ohio State University, Columbus, OH, USA
| | - Marcio Antonio Mathias
- FEI University, Department of Electrical Engineering, São Bernardo do Campo, São Paulo, Brazil
| | - Mauro Pedrine Santamaria
- Division of Periodontics, Unesp - São Paulo State University, Institute of Science and Technology, São José dos Campos, São Paulo, Brazil
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Anitua E, Pino A, Zalduendo M. Long-term stability of a novel platelet-rich plasma-based topical serum for cutaneous applications. J Cosmet Dermatol 2020; 20:854-861. [PMID: 32654407 DOI: 10.1111/jocd.13617] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 07/02/2020] [Accepted: 07/06/2020] [Indexed: 12/13/2022]
Abstract
BACKGROUND Skin alterations are usually related to chronic diseases that demand sustained and long-term dosages; hence, it is pivotal that the stability of treatments is preserved. A novel storable and endogenous topical serum (ES) based on the patient's own blood has been recently developed. AIMS To investigate the long-term stability of the formulation and to provide preliminary data of its biologic potential. METHODS Samples from six donors were obtained and either used as fresh samples or cold-stored for 6 months. Physicochemical, rheological, and biological stability of the formulation was determined. RESULTS Endogenous topical serum maintained unaltered its organoleptic properties, viscosity, pH, spreadability index, and sterility. The growth factor content including TGFβ-I, EGF, PDGF-AB, HGF, and Ang-I showed no decrease. In contrast, ES showed lower levels of IGF-I once stored. Dermal fibroblasts showed no change in their proliferative activity. CONCLUSION Endogenous topical serum showed to maintain its physicochemical and biological properties after six months of storage. ES might reduce the frequency of blood extractions and would enable patients with chronic disorders to maintain a daily use of the product in a minimally invasive way.
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Affiliation(s)
| | - Ander Pino
- BTI Biotechnology Institute, Vitoria, Spain
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