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Sun M, Tian Y, Liu J, Yan Y, Zhang X, Xiao C, Jiang R. Proanthocyanidins-based tandem dynamic covalent cross-linking hydrogel for diabetic wound healing. Int J Biol Macromol 2024; 272:132741. [PMID: 38825292 DOI: 10.1016/j.ijbiomac.2024.132741] [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: 12/07/2023] [Revised: 05/23/2024] [Accepted: 05/27/2024] [Indexed: 06/04/2024]
Abstract
Wound healing in diabetic patients presents significant challenges in clinical wound care due to high oxidative stress, excessive inflammation, and a microenvironment prone to infection. In this study, we successfully developed a multifunctional tandem dynamic covalently cross-linked hydrogel dressing aimed at diabetic wound healing. This hydrogel was constructed using cyanoacetic acid functionalized dextran (Dex-CA), 2-formylbenzoylboric acid (2-FPBA) and natural oligomeric proanthocyanidins (OPC), catalyzed by histidine. The resulting Dex-CA/OPC/2-FPBA (DPOPC) hydrogel can be dissolved triggered by cysteine, thereby achieving "controllable and non-irritating" dressing change. Furthermore, the incorporation of OPC as a hydrogel building block endowed the hydrogel with antioxidant and anti-inflammatory properties. The cross-linked network of the DPOPC hydrogel circumvents the burst release of OPC, enhancing its biosafety. In vivo studies demonstrated that the DPOPC hydrogel significantly accelerated the wound healing process in diabetic mice compared to a commercial hydrogel, achieving an impressive wound closure rate of 98 % by day 14. The DPOPC hydrogel effectively balanced the disrupted inflammatory state during the healing process. This dynamic hydrogel based on natural polyphenols is expected to be an ideal candidate for dressings intended for chronic wounds.
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Affiliation(s)
- Minghui Sun
- Department of Dermatology China-Japan Union Hospital of Jilin University, Changchun 130033, PR China; Key Laboratory of Polymer Ecomaterials, Jilin Biomedical Polymers Engineering Laboratory, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China
| | - Yongchang Tian
- Key Laboratory of Polymer Ecomaterials, Jilin Biomedical Polymers Engineering Laboratory, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China; Department of Chemistry, Northeast Normal University, Changchun 130024, PR China
| | - Jiaying Liu
- Key Laboratory of Polymer Ecomaterials, Jilin Biomedical Polymers Engineering Laboratory, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China
| | - Yu Yan
- Key Laboratory of Polymer Ecomaterials, Jilin Biomedical Polymers Engineering Laboratory, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China
| | - Xiaonong Zhang
- Key Laboratory of Polymer Ecomaterials, Jilin Biomedical Polymers Engineering Laboratory, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China.
| | - Chunsheng Xiao
- Key Laboratory of Polymer Ecomaterials, Jilin Biomedical Polymers Engineering Laboratory, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China
| | - Rihua Jiang
- Department of Dermatology China-Japan Union Hospital of Jilin University, Changchun 130033, PR China.
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Cid-Bertomeu P, Vilaltella M, Martínez M, Mir M, Huerva V. Topical Insulin for Ocular Surface Disease. J Ocul Pharmacol Ther 2024; 40:204-214. [PMID: 38527183 DOI: 10.1089/jop.2024.0016] [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: 03/27/2024] Open
Abstract
Background: Insulin and insulin-like growth factor (IGF)-1 receptors are present in ocular tissues such as corneal epithelium, keratocytes, and conjunctival cells. Insulin plays a crucial role in the growth, differentiation, and proliferation of corneal epithelial cells, as well as in wound healing processes in various tissues. Purpose: This review explores the potential role of topical insulin in the treatment of ocular surface diseases. Specifically, it examines its impact on corneal nerve regeneration, sub-basal plexus corneal nerves, and its application in conditions like corneal epithelial defects, dry eye disease, and diabetic keratopathy. Methods: The review analyzes studies conducted over the past decade that have investigated the use of topical insulin in ocular surface diseases. It focuses on indications, drug preparation methods, side effects, efficacy outcomes, and variations in insulin concentrations and dosages used. Results: While off-label use of topical insulin has shown promising results in refractory corneal epithelial defects, its efficacy in dry eye disease is yet to be demonstrated. Variations in concentrations, dilutions, and dosing guidelines have been reported. However, limited data on ocular penetration, ocular toxicity, and systemic side effects pose challenges to its widespread utility. Conclusion: This review synthesizes findings from ocular investigations on topical insulin to assess its potential applicability in treating ocular surface and corneal diseases. By highlighting indications, preparation methods, side effects, and efficacy outcomes, it aims to provide insights into the current status and future prospects of using topical insulin in ophthalmic practice.
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Affiliation(s)
- Pau Cid-Bertomeu
- Department of Ophthalmology, University Hospital Arnau de Vilanova, Lleida, Spain
| | - Magí Vilaltella
- Department of Ophthalmology, University Hospital Arnau de Vilanova, Lleida, Spain
- School of Medicine, University of Lleida, Lleida, Spain
| | - Mireia Martínez
- Department of Hospital Pharmacy, University Hospital Arnau de Vilanova, Lleida, Spain
| | - Marta Mir
- Department of Hospital Pharmacy, University Hospital Arnau de Vilanova, Lleida, Spain
| | - Valentín Huerva
- Department of Ophthalmology, University Hospital Arnau de Vilanova, Lleida, Spain
- School of Medicine, University of Lleida, Lleida, Spain
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Cavalcanti NA, Martini K, Götschi T, Krähenbühl N, Schöni M, Waibel FWA. Second Metatarsal Length and Transfer Ulcers After First Metatarsal Amputation in Diabetic Foot Infections. Foot Ankle Int 2024; 45:474-484. [PMID: 38497521 PMCID: PMC11083743 DOI: 10.1177/10711007241232970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Abstract
BACKGROUND Plantar transfer ulcers (TUs) underneath the second metatarsal head are frequent after first metatarsal ray amputations due to diabetic foot infections. Whether the second metatarsal length (2ML) is associated with TU occurrence in these patients is unclear. This study evaluated whether 2ML is associated with TU occurrence after first-ray amputations and whether ulcer-free survival is shorter in patients with "excess" 2ML. METHODS Forty-two patients with a mean age of 67 (range 33-93) years, diabetes, and first metatarsal ray amputation (first amputation at the affected foot) were included. Two independent readers measured the 2ML using the Coughlin method. A protrusion of more than 4.0 mm of the second metatarsal was defined as "excess" 2ML. The effect of 2ML on ulcer occurrence was analyzed using a multivariate Cox regression model. A Kaplan-Meier curve for TU-free survival was constructed comparing the 2 groups of "normal" (n = 21) and "excess" 2ML (n = 21). RESULTS Interrater reliability was excellent. TUs underneath the second metatarsal occurred in 15 (36%) patients. In agreement with our hypothesis, 2ML was nonsignificantly different in patients with TUs, recording a mean of 5.3 (SD 2.5) mm, compared to patients without 4.0 (SD 2.3) mm (hazard ratio [HR] 1.12, 95% CI 0.89-1.41), whereas insulin dependence was associated with ulcer occurrence (HR 0.33, 95% CI 0.11-0.99). CONCLUSION In our relatively small study population with a cutoff level of 4 mm for excess 2ML, ulcer-free survival was similar in patients with "normal" and "excess" 2ML. LEVEL OF EVIDENCE Level III, retrospective comparative study.
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Affiliation(s)
| | - Katharina Martini
- Department of Radiology, Balgrist University Hospital, Zurich, Switzerland
| | - Tobias Götschi
- Department of Orthopaedics, Balgrist University Hospital, Zurich, Switzerland
- Institute for Biomechanics, ETH Zurich, Zurich, Switzerland
| | - Nicola Krähenbühl
- Department of Orthopaedics, University Hospital Basel, Basel, Switzerland
| | - Madlaina Schöni
- Department of Orthopaedics, Balgrist University Hospital, Zurich, Switzerland
| | - Felix W. A. Waibel
- Department of Orthopaedics, Balgrist University Hospital, Zurich, Switzerland
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Carreira LM, Silva R, Alves J, Inácio F, Pires G, Azevedo P. The Use of Fast-Acting Insulin Topical Solution on Skin to Promote Surgical Wound Healing in Cats. Animals (Basel) 2024; 14:1358. [PMID: 38731363 PMCID: PMC11082965 DOI: 10.3390/ani14091358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 04/19/2024] [Accepted: 04/23/2024] [Indexed: 05/13/2024] Open
Abstract
Wound healing is a complex biological process involving a coordinated sequence of events aimed at restoring tissue integrity and function. Recent advancements in wound care have introduced novel therapies, with topical insulin application emerging as a promising strategy for promoting tissue healing. This study, involving 60 female cats (n = 60) undergoing elective spaying, aimed to evaluate the effects of topical fast-acting insulin on the healing process of surgical wounds. Each surgical suture was divided into two regions: the control zone (Zcr) without insulin application and the study zone (Zst), where insulin was applied topically for 10 min every 24 h over eight consecutive days. Assessment of suture healing was conducted using an adapted scale at two time points post-surgery: T1 (day 2) and T2 (day 8). Statistically significant differences were registered in the final healing scale scores between Zcr and Zst (p < 0.022), as well as for the parameter of regional fluid (p-value = 0.017). Additionally, at T2, all Zst regions exhibited wound closure, whereas Zcr did not, although not in a statistically significant manner. The observed discrepancy at T2 between the Zcr and Zst regions may suggest a potential benefit of utilizing insulin. No side effects resulting from the insulin topical application performed by the tutors were recorded in the Zst suture group. This study represents the first exploration of the benefits of topical insulin application for surgical wound healing in cats.
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Affiliation(s)
- L. Miguel Carreira
- Anjos of Assis Veterinary Medicine Centre—CMVAA, Rua D.ª Francisca da Azambuja Nº9-9A, 2830-077 Barreiro, Portugal; (R.S.); (P.A.)
- Faculty of Veterinary Medicine, University of Lisbon (FMV/ULisboa), Av. da Universidade Técnica, 1300-477 Lisbon, Portugal; (F.I.); (G.P.)
- Interdisciplinary Centre for Research in Animal Health (CIISA), University of Lisbon (FMV/ULisboa), Av. da Universidade Técnica, 1300-477 Lisbon, Portugal
- Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), 1300-477 Lisbon, Portugal
- Faculty of American Laser Study Club—ALSC, Altamonte Springs, FL 32714, USA
| | - Rúben Silva
- Anjos of Assis Veterinary Medicine Centre—CMVAA, Rua D.ª Francisca da Azambuja Nº9-9A, 2830-077 Barreiro, Portugal; (R.S.); (P.A.)
| | - João Alves
- Divisão de Medicina Veterinária, Guarda Nacional Republicana (GNR), Rua Presidente Arriaga, 9, 1200-771 Lisbon, Portugal;
| | - Filipa Inácio
- Faculty of Veterinary Medicine, University of Lisbon (FMV/ULisboa), Av. da Universidade Técnica, 1300-477 Lisbon, Portugal; (F.I.); (G.P.)
| | - Graça Pires
- Faculty of Veterinary Medicine, University of Lisbon (FMV/ULisboa), Av. da Universidade Técnica, 1300-477 Lisbon, Portugal; (F.I.); (G.P.)
- Interdisciplinary Centre for Research in Animal Health (CIISA), University of Lisbon (FMV/ULisboa), Av. da Universidade Técnica, 1300-477 Lisbon, Portugal
- Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), 1300-477 Lisbon, Portugal
| | - Pedro Azevedo
- Anjos of Assis Veterinary Medicine Centre—CMVAA, Rua D.ª Francisca da Azambuja Nº9-9A, 2830-077 Barreiro, Portugal; (R.S.); (P.A.)
- Faculty of American Laser Study Club—ALSC, Altamonte Springs, FL 32714, USA
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Chen S, Li Y, Song W, Cheng Y, Gao Y, Xie L, Huang M, Yan X. Insulin eye drops improve corneal wound healing in STZ-induced diabetic mice by regulating corneal inflammation and neuropeptide release. BMC Ophthalmol 2024; 24:155. [PMID: 38594682 PMCID: PMC11003036 DOI: 10.1186/s12886-024-03436-3] [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: 04/12/2023] [Accepted: 04/05/2024] [Indexed: 04/11/2024] Open
Abstract
INTRODUCTION In recent years, insulin eye drops have attracted increasing attention from researchers and ophthalmologists. The aim of this study was to investigate the efficacy and possible mechanism of action of insulin eye drops in diabetic mice with corneal wounds. METHODS A type 1 diabetes model was induced, and a corneal epithelial injury model of 2.5 mm was established. We used corneal fluorescein staining, hematoxylin-eosin (H-E) staining and the Cochet-Bonnet esthesiometer to examine the process of wound healing. Subsequently, the expression levels of Ki-67, IL-1β, β3-tubulin and neuropeptides, including substance P (SP) and calcitonin gene-related peptide (CGRP), were examined at 72 h after corneal injury. RESULTS Fluorescein staining demonstrated an acceleration of the recovery of corneal epithelial injury in diabetic mice compared with the saline treatment, which was further evidenced by the overexpression of Ki-67. Moreover, 72 h of insulin application attenuated the expression of inflammatory cytokines and neutrophil infiltration. Remarkably, the results demonstrated that topical insulin treatment enhanced the density of corneal epithelial nerves, as well as neuropeptide SP and CGRP release, in the healing cornea via immunofluorescence staining. CONCLUSIONS Our results indicated that insulin eye drops may accelerate corneal wound healing and decrease inflammatory responses in diabetic mice by promoting nerve regeneration and increasing levels of neuropeptides SP and CGRP.
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Affiliation(s)
- Shudi Chen
- Department of Ophthalmology, Peking University First Hospital, No.8 Xishiku Avenue, 100034, Beijing, China
| | - Yingsi Li
- Department of Ophthalmology, Peking University First Hospital, No.8 Xishiku Avenue, 100034, Beijing, China
| | - Wenjing Song
- Department of Ophthalmology, Peking University First Hospital, No.8 Xishiku Avenue, 100034, Beijing, China
| | - Yu Cheng
- Department of Ophthalmology, Peking University First Hospital, No.8 Xishiku Avenue, 100034, Beijing, China
| | - Yuan Gao
- Department of Ophthalmology, Peking University First Hospital, No.8 Xishiku Avenue, 100034, Beijing, China
| | - Luoying Xie
- Department of Ophthalmology, Peking University First Hospital, No.8 Xishiku Avenue, 100034, Beijing, China
| | - Meiting Huang
- Department of Ophthalmology, Peking University First Hospital, No.8 Xishiku Avenue, 100034, Beijing, China
| | - Xiaoming Yan
- Department of Ophthalmology, Peking University First Hospital, No.8 Xishiku Avenue, 100034, Beijing, China.
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Flis Z, Szatkowski P, Pielichowska K, Molik E. The Potential of Sheep or Camel Milk Constituents to Contribute to Novel Dressings for Diabetic Wounds. Int J Mol Sci 2023; 24:17551. [PMID: 38139380 PMCID: PMC10744295 DOI: 10.3390/ijms242417551] [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: 10/27/2023] [Revised: 12/11/2023] [Accepted: 12/14/2023] [Indexed: 12/24/2023] Open
Abstract
Impaired wound healing is a complication of diabetes, which constitutes a serious problem in clinical practice. Currently, there is a high demand on the market for local treatment options for difficult-to-heal wounds caused by diabetes. The development of dressings that accelerate wound healing has recently been the subject of much research. Sheep and camel milk is gaining importance due to the content of many bioactive substances with health-promoting effects, such as insulin, LF, proline, or CLA. Sheep and camel milk proteins are a promising source of insulin, antidiabetic, and antihypertensive peptides. Numerous studies show that local administration of insulin has a significant impact on the healing of diabetic wounds. Sheep and camel milk, due to the highest LF content among ruminants, reduces autoimmune inflammatory processes and protects against bacterial and viral infections in the wound environment. Sheep's milk has the highest content of proline and CLA, and their addition to a hydrogel dressing can help in the development of an effective dressing material. The production of hydrogel dressings containing sheep and camel milk, which are naturally rich in the bioactive substances presented in this review, may be a promising step in the market of specialized dressings for difficult-to-heal diabetic wounds.
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Affiliation(s)
- Zuzanna Flis
- Department of Animal Nutrition and Biotechnology, and Fisheries, Faculty of Animal Science, University of Agriculture in Krakow, Al. Mickiewicza 24/28, 31-059 Krakow, Poland
| | - Piotr Szatkowski
- Department of Biomaterials and Composites, Faculty of Materials Science and Ceramics, University of Science and Technology in Krakow, Al. Mickiewicza 30, 30-059 Krakow, Poland (K.P.)
| | - Kinga Pielichowska
- Department of Biomaterials and Composites, Faculty of Materials Science and Ceramics, University of Science and Technology in Krakow, Al. Mickiewicza 30, 30-059 Krakow, Poland (K.P.)
| | - Edyta Molik
- Department of Animal Nutrition and Biotechnology, and Fisheries, Faculty of Animal Science, University of Agriculture in Krakow, Al. Mickiewicza 24/28, 31-059 Krakow, Poland
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Sharda D, Kaur P, Choudhury D. Protein-modified nanomaterials: emerging trends in skin wound healing. DISCOVER NANO 2023; 18:127. [PMID: 37843732 PMCID: PMC10579214 DOI: 10.1186/s11671-023-03903-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Accepted: 09/23/2023] [Indexed: 10/17/2023]
Abstract
Prolonged inflammation can impede wound healing, which is regulated by several proteins and cytokines, including IL-4, IL-10, IL-13, and TGF-β. Concentration-dependent effects of these molecules at the target site have been investigated by researchers to develop them as wound-healing agents by regulating signaling strength. Nanotechnology has provided a promising approach to achieve tissue-targeted delivery and increased effective concentration by developing protein-functionalized nanoparticles with growth factors (EGF, IGF, FGF, PDGF, TGF-β, TNF-α, and VEGF), antidiabetic wound-healing agents (insulin), and extracellular proteins (keratin, heparin, and silk fibroin). These molecules play critical roles in promoting cell proliferation, migration, ECM production, angiogenesis, and inflammation regulation. Therefore, protein-functionalized nanoparticles have emerged as a potential strategy for improving wound healing in delayed or impaired healing cases. This review summarizes the preparation and applications of these nanoparticles for normal or diabetic wound healing and highlights their potential to enhance wound healing.
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Affiliation(s)
- Deepinder Sharda
- School of Chemistry and Biochemistry, Thapar Institute of Engineering and Technology, Patiala, Punjab, 147004, India
| | - Pawandeep Kaur
- School of Chemistry and Biochemistry, Thapar Institute of Engineering and Technology, Patiala, Punjab, 147004, India
| | - Diptiman Choudhury
- School of Chemistry and Biochemistry, Thapar Institute of Engineering and Technology, Patiala, Punjab, 147004, India.
- Thapar Institute of Engineering and Technology-Virginia Tech Centre of Excellence for Emerging Materials, Thapar Institute of Engineering and Technology, Patiala, Punjab, 147004, India.
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8
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Bhuiyan ZA, Adebayo O, Ahmed Z. Localised insulin administration for wound healing in non-diabetic adults: A systematic review and meta-analysis of randomised controlled trials. Wound Repair Regen 2023; 31:516-527. [PMID: 37199544 DOI: 10.1111/wrr.13098] [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: 08/25/2022] [Revised: 03/15/2023] [Accepted: 04/11/2023] [Indexed: 05/19/2023]
Abstract
Insulin has the potential to restore damaged skin and due to its affordability and global availability, it is an agent of interest when it comes to pioneering new remedies to accelerate wound healing. The aim of this study was to explore the efficacy and safety of localised insulin administration on wound healing in non-diabetic adults. Studies were systematically searched, using the electronic databases Embase, Ovid MEDLINE and PubMed, screened, and extracted by two independent reviewers. A total of seven randomised controlled trials that met the inclusion criteria were analysed. Risk of bias was assessed using the Revised Cochrane Risk-of-Bias Tool for Randomised Trials and a meta-analysis was performed. The primary outcome, which explored rate of wound healing (mm2 /day), concluded that there was an overall significant mean improvement in the insulin treated group (IV = 11.84; 95% CI: 0.64-23.04; p = 0.04; I2 = 97%) compared to the control group. Secondary outcomes concluded that there is no statistical difference between the healing time (days) of the wound (IV = -5.40; 95% CI: -11.28 to 0.48; p = 0.07; I2 = 89%); there is a significant reduction in wound area in the insulin group; no adverse events were noted with the administration of localised insulin; quality of life improves drastically as the wound heals, irrespective of insulin. We conclude that although the study showed an improved wound healing rate, other parameters were not statistically significant. Therefore, larger prospective studies are warranted to fully explore the effects of insulin on different wounds, where an appropriate insulin regime can be developed for clinical practice.
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Affiliation(s)
| | | | - Zubair Ahmed
- College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
- Neuroscience and Ophthalmology, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
- Centre for Trauma Sciences Research, University of Birmingham, Birmingham, UK
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9
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Zhang Z, Qi Z, Kong W, Zhang R, Yao C. Applications of MXene and its modified materials in skin wound repair. Front Bioeng Biotechnol 2023; 11:1154301. [PMID: 36994359 PMCID: PMC10042448 DOI: 10.3389/fbioe.2023.1154301] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 03/02/2023] [Indexed: 03/14/2023] Open
Abstract
The rapid healing and repair of skin wounds has been receiving much clinical attention. Covering the wound with wound dressing to promote wound healing is currently the main treatment for skin wound repair. However, the performance of wound dressing prepared by a single material is limited and cannot meet the requirements of complex conditions for wound healing. MXene is a new two-dimensional material with electrical conductivity, antibacterial and photothermal properties and other physical and biological properties, which has a wide range of applications in the field of biomedicine. Based on the pathophysiological process of wound healing and the properties of ideal wound dressing, this review will introduce the preparation and modification methods of MXene, systematically summarize and review the application status and mechanism of MXene in skin wound healing, and provide guidance for subsequent researchers to further apply MXene in the design of skin wound dressing.
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Affiliation(s)
- Ziyan Zhang
- Department of Orthopedic Surgery, The Second Hospital of Jilin University, Changchun, China
| | - Zhiping Qi
- Department of Orthopedic Surgery, The Second Hospital of Jilin University, Changchun, China
| | - Weijian Kong
- The Second Hospital of Jilin University, Changchun, China
| | - Renfeng Zhang
- The Second Hospital of Jilin University, Changchun, China
| | - Chunli Yao
- Department of Dermatology, The Second Hospital of Jilin University, Changchun, China
- *Correspondence: Chunli Yao,
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10
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Żwierełło W, Piorun K, Skórka-Majewicz M, Maruszewska A, Antoniewski J, Gutowska I. Burns: Classification, Pathophysiology, and Treatment: A Review. Int J Mol Sci 2023; 24:ijms24043749. [PMID: 36835171 PMCID: PMC9959609 DOI: 10.3390/ijms24043749] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 02/05/2023] [Accepted: 02/09/2023] [Indexed: 02/16/2023] Open
Abstract
Burns and their treatment are a significant medical problem. The loss of the physical barrier function of the skin opens the door to microbial invasion and can lead to infection. The repair process of the damage caused by the burn is impaired due to the enhanced loss of fluids and minerals through the burn wound, the onset of hypermetabolism with the concomitant disruption of nutrient supply, and derangements in the endocrine system. In addition, the initiated inflammatory and free radical processes drive the progression of oxidative stress, the inhibition of which largely depends on an adequate supply of antioxidants and minerals. Clinical experience and research provide more and more data to make the treatment of patients with thermal injury increasingly effective. The publication discusses disorders occurring in patients after thermal injury and the methods used at various stages of treatment.
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Affiliation(s)
- Wojciech Żwierełło
- Department of Medical Chemistry, Pomeranian Medical University, 70-204 Szczecin, Poland
| | - Krzysztof Piorun
- West Pomeranian Center for Treating Severe Burns and Plastic Surgery, 72-300 Gryfice, Poland
| | - Marta Skórka-Majewicz
- Department of Medical Chemistry, Pomeranian Medical University, 70-204 Szczecin, Poland
| | - Agnieszka Maruszewska
- Department of Physiology and Biochemistry, Institute of Biology, University of Szczecin, 71-412 Szczecin, Poland
| | - Jacek Antoniewski
- Department of Medical Chemistry, Pomeranian Medical University, 70-204 Szczecin, Poland
| | - Izabela Gutowska
- Department of Medical Chemistry, Pomeranian Medical University, 70-204 Szczecin, Poland
- Correspondence:
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11
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Liu Q, Hu L, Wang C, Cheng M, Liu M, Wang L, Pan P, Chen J. Renewable marine polysaccharides for microenvironment-responsive wound healing. Int J Biol Macromol 2023; 225:526-543. [PMID: 36395940 DOI: 10.1016/j.ijbiomac.2022.11.109] [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: 08/22/2022] [Revised: 10/28/2022] [Accepted: 11/11/2022] [Indexed: 11/16/2022]
Abstract
Marine polysaccharides (MPs) are an eco-friendly and renewable resource with a distinctive set of biological functions and are regarded as biological materials that can be in contact with tissues and body fluids for an extended time and promote tissue or organ regeneration. Skin tissue is easily invaded by the external environment due to its softness and large surface area. However, the body's natural physiological healing process is often too slow or suffers from the incomplete restoration of skin structure and function. Functional wound dressings are crucial for skin tissue engineering. Herein, popular MPs from different sources are summarized systematically. In particular, the structure-effectiveness of MP-based wound dressings and the physiological remodeling process of different wounds are reviewed in detail. Finally, the prospect of MP-based smart wound dressings is stated in conjunction with the wound microenvironment and provides new opportunities for high-value biomedical applications of MPs.
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Affiliation(s)
- Qing Liu
- Marine College, Shandong University, Weihai 264209, China
| | - Le Hu
- Marine College, Shandong University, Weihai 264209, China
| | - Chunxiao Wang
- Marine College, Shandong University, Weihai 264209, China
| | - Meiqi Cheng
- Marine College, Shandong University, Weihai 264209, China
| | - Man Liu
- Marine College, Shandong University, Weihai 264209, China
| | - Lin Wang
- Marine College, Shandong University, Weihai 264209, China
| | - Panpan Pan
- Marine College, Shandong University, Weihai 264209, China.
| | - Jingdi Chen
- Marine College, Shandong University, Weihai 264209, China.
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12
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Walther M, Vestweber PK, Kühn S, Rieger U, Schäfer J, Münch C, Vogel-Kindgen S, Planz V, Windbergs M. Bioactive Insulin-Loaded Electrospun Wound Dressings for Localized Drug Delivery and Stimulation of Protein Expression Associated with Wound Healing. Mol Pharm 2023; 20:241-254. [PMID: 36538353 DOI: 10.1021/acs.molpharmaceut.2c00610] [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] [Indexed: 12/24/2022]
Abstract
Effective therapy of wounds is difficult, especially for chronic, non-healing wounds, and novel therapeutics are urgently needed. This challenge can be addressed with bioactive wound dressings providing a microenvironment and facilitating cell proliferation and migration, ideally incorporating actives, which initiate and/or progress effective healing upon release. In this context, electrospun scaffolds loaded with growth factors emerged as promising wound dressings due to their biocompatibility, similarity to the extracellular matrix, and potential for controlled drug release. In this study, electrospun core-shell fibers were designed composed of a combination of polycaprolactone and polyethylene oxide. Insulin, a proteohormone with growth factor characteristics, was successfully incorporated into the core and was released in a controlled manner. The fibers exhibited favorable mechanical properties and a surface guiding cell migration for wound closure in combination with a high uptake capacity for wound exudate. Biocompatibility and significant wound healing effects were shown in interaction studies with human skin cells. As a new approach, analysis of the wound proteome in treated ex vivo human skin wounds clearly demonstrated a remarkable increase in wound healing biomarkers. Based on these findings, insulin-loaded electrospun wound dressings bear a high potential as effective wound healing therapeutics overcoming current challenges in the clinics.
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Affiliation(s)
- Marcel Walther
- Institute of Pharmaceutical Technology and Buchmann Institute for Molecular Life Sciences, Goethe-University Frankfurt am Main, Max-von-Laue Straße 9, 60438Frankfurt am Main, Germany
| | - Pia Katharina Vestweber
- Institute of Pharmaceutical Technology and Buchmann Institute for Molecular Life Sciences, Goethe-University Frankfurt am Main, Max-von-Laue Straße 9, 60438Frankfurt am Main, Germany
| | - Shafreena Kühn
- Clinic for Plastic and Aesthetic Surgery, Reconstructive and Hand Surgery, Agaplesion Markus Clinic, Wilhelm-Epstein-Straße 4, 60431Frankfurt am Main, Germany
| | - Ulrich Rieger
- Clinic for Plastic and Aesthetic Surgery, Reconstructive and Hand Surgery, Agaplesion Markus Clinic, Wilhelm-Epstein-Straße 4, 60431Frankfurt am Main, Germany
| | - Jasmin Schäfer
- Institute of Biochemistry II, University Hospital Frankfurt, Goethe University Frankfurt am Main, Theodor-Stern-Kai 7 / Building 75, 60590Frankfurt am Main, Germany
| | - Christian Münch
- Institute of Biochemistry II, University Hospital Frankfurt, Goethe University Frankfurt am Main, Theodor-Stern-Kai 7 / Building 75, 60590Frankfurt am Main, Germany
| | - Sarah Vogel-Kindgen
- Institute of Pharmaceutical Technology and Buchmann Institute for Molecular Life Sciences, Goethe-University Frankfurt am Main, Max-von-Laue Straße 9, 60438Frankfurt am Main, Germany
| | - Viktoria Planz
- Institute of Pharmaceutical Technology and Buchmann Institute for Molecular Life Sciences, Goethe-University Frankfurt am Main, Max-von-Laue Straße 9, 60438Frankfurt am Main, Germany
| | - Maike Windbergs
- Institute of Pharmaceutical Technology and Buchmann Institute for Molecular Life Sciences, Goethe-University Frankfurt am Main, Max-von-Laue Straße 9, 60438Frankfurt am Main, Germany
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13
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Guo Z, Liu H, Shi Z, Lin L, Li Y, Wang M, Pan G, Lei Y, Xue L. Responsive hydrogel-based microneedle dressing for diabetic wound healing. J Mater Chem B 2022; 10:3501-3511. [PMID: 35416225 DOI: 10.1039/d2tb00126h] [Citation(s) in RCA: 44] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Wound healing is a critical challenge in diabetic patients, mainly due to long-term dysglycemia and its related pathological complications. Subcutaneous insulin injection represents a typical clinical solution, while the low controllability of insulin administration commonly leads to a result far from the optimal therapeutic effect. In this work, we developed a glucose-responsive insulin-releasing hydrogel for microneedle dressing fabrication and then investigated its effects on diabetic wound healing. The hydrogel system was composed of biocompatible gelatin methacrylate (GelMa), glucose-responsive monomer 4-(2-acrylamidoethylcarbamoyl)-3-fluorophenylboronic acid (AFPBA) and gluconic insulin (G-insulin), and the Gel-AFPBA-ins hydrogel-based microneedle dressing was developed by replicating PDMS molds. The resultant hydrogel microneedle dressing exhibited adequate mechanical properties, high biocompatibility, glucose-responsive insulin release behavior upon exposure to different glucose solutions, and potent adhesion to the skin compared to hydrogels without microstructures. The microneedle dressing could accelerate the diabetic wound healing process with decreased inflammatory reaction, enhanced collagen deposition on the regenerated tissue sites, and improved blood glucose control in animals. Therefore, the glucose-responsive insulin-releasing hydrogel microneedle dressing is effective in diabetic wound management and has potential for treatment of other chronic skin injuries.
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Affiliation(s)
- Zhaoyang Guo
- School of Power and Mechanical Engineering & The Institute of Technological Science, Wuhan University, Wuhan 430072, China.
| | - Haiyang Liu
- School of Power and Mechanical Engineering & The Institute of Technological Science, Wuhan University, Wuhan 430072, China.
| | - Zhekun Shi
- School of Power and Mechanical Engineering & The Institute of Technological Science, Wuhan University, Wuhan 430072, China.
| | - Lulu Lin
- School of Basic Medical Sciences, Wuhan University, Wuhan 430071, China
| | - Yinping Li
- School of Basic Medical Sciences, Wuhan University, Wuhan 430071, China
| | - Miao Wang
- Institute for Advanced Materials, School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China.
| | - Guoqing Pan
- Institute for Advanced Materials, School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China.
| | - Yifeng Lei
- School of Power and Mechanical Engineering & The Institute of Technological Science, Wuhan University, Wuhan 430072, China. .,Wuhan University Shenzhen Research Institute, Shenzhen 518057, China
| | - Longjian Xue
- School of Power and Mechanical Engineering & The Institute of Technological Science, Wuhan University, Wuhan 430072, China.
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14
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Lujerdean C, Baci GM, Cucu AA, Dezmirean DS. The Contribution of Silk Fibroin in Biomedical Engineering. INSECTS 2022; 13:286. [PMID: 35323584 PMCID: PMC8950689 DOI: 10.3390/insects13030286] [Citation(s) in RCA: 44] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 03/07/2022] [Accepted: 03/10/2022] [Indexed: 02/06/2023]
Abstract
Silk fibroin (SF) is a natural protein (biopolymer) extracted from the cocoons of Bombyx mori L. (silkworm). It has many properties of interest in the field of biotechnology, the most important being biodegradability, biocompatibility and robust mechanical strength with high tensile strength. SF is usually dissolved in water-based solvents and can be easily reconstructed into a variety of material formats, including films, mats, hydrogels, and sponges, by various fabrication techniques (spin coating, electrospinning, freeze-drying, and physical or chemical crosslinking). Furthermore, SF is a feasible material used in many biomedical applications, including tissue engineering (3D scaffolds, wounds dressing), cancer therapy (mimicking the tumor microenvironment), controlled drug delivery (SF-based complexes), and bone, eye and skin regeneration. In this review, we describe the structure, composition, general properties, and structure-properties relationship of SF. In addition, the main methods used for ecological extraction and processing of SF that make it a green material are discussed. Lastly, technological advances in the use of SF-based materials are addressed, especially in healthcare applications such as tissue engineering and cancer therapeutics.
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Affiliation(s)
- Cristian Lujerdean
- Faculty of Animal Science and Biotechnology, University of Animal Sciences and Veterinary Medicine Cluj-Napoca, 400372 Cluj-Napoca, Romania; (A.-A.C.); (D.S.D.)
| | - Gabriela-Maria Baci
- Faculty of Animal Science and Biotechnology, University of Animal Sciences and Veterinary Medicine Cluj-Napoca, 400372 Cluj-Napoca, Romania; (A.-A.C.); (D.S.D.)
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15
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Regittnig W, Tschaikner M, Tuca A, Simic A, Feiel J, Schaller‐Ammann R, Licht AH, Jungklaus M, Pieber TR. Insulin induces a progressive increase in the resistance of subcutaneous tissue to fluid flow: Implications for insulin pump therapy. Diabetes Obes Metab 2022; 24:455-464. [PMID: 34739179 PMCID: PMC9299465 DOI: 10.1111/dom.14594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 10/21/2021] [Accepted: 10/31/2021] [Indexed: 11/28/2022]
Abstract
AIM To determine the effect of insulin on the resistance of subcutaneous tissue to the flow of infusion fluids. MATERIALS AND METHODS Thirty subjects with type 1 diabetes wore two Accu-Chek Spirit Combo insulin pumps with Accu-Chek FlexLink infusion sets (Roche Diabetes Care, Mannheim, Germany) for 7 days. One pump was filled with insulin aspart (Novo Nordisk, Bagsvaerd, Denmark) and used for continuous subcutaneous insulin infusion (CSII). The other pump was filled with insulin diluting medium (IDM; Novo Nordisk) and used to deliver IDM subcutaneously at rates identical to those employed for CSII. Both infusion sites were assessed daily by measuring the pressure required to infuse various bolus amounts of IDM. RESULTS On day 1, maximum pressure (Pmax ) and tissue flow resistance (TFR; calculated from measured pressure profiles) were similar for both infusion sites (P > 0.20). During the subsequent study days, the Pmax and TFR values observed at the IDM infusion site remained at levels comparable to those seen on day 1 (P > 0.13). However, at the site of CSII, Pmax and TFR progressively increased with CSII duration. By the end of day 7, Pmax and TFR reached 25.8 */2.11 kPa (geometric mean */geometric standard deviation) and 8.64 */3.48 kPa*s/μL, respectively, representing a remarkable 3.5- and 20.6-fold increase relative to the respective Pmax and TFR values observed on day 1 (P < 0.001). CONCLUSION Our results suggest that insulin induces a progressive increase in the resistance of subcutaneous tissue to the introduction of fluid; this has important implications for the future design of insulin pumps and infusion sets.
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Affiliation(s)
- Werner Regittnig
- Department of Internal Medicine, Division of Endocrinology and DiabetologyMedical University of GrazGrazAustria
| | - Mathias Tschaikner
- Department of Internal Medicine, Division of Endocrinology and DiabetologyMedical University of GrazGrazAustria
| | - Alexandru‐Cristian Tuca
- Department of Internal Medicine, Division of Endocrinology and DiabetologyMedical University of GrazGrazAustria
| | - Amra Simic
- Department of Internal Medicine, Division of Endocrinology and DiabetologyMedical University of GrazGrazAustria
| | - Jürgen Feiel
- JOANNEUM RESEARCH Forschungsgesellschaft mbHHEALTH–Institute for Biomedicine and Health SciencesGrazAustria
| | - Roland Schaller‐Ammann
- JOANNEUM RESEARCH Forschungsgesellschaft mbHHEALTH–Institute for Biomedicine and Health SciencesGrazAustria
| | | | - Miró Jungklaus
- Department of Internal Medicine, Division of Endocrinology and DiabetologyMedical University of GrazGrazAustria
| | - Thomas R. Pieber
- Department of Internal Medicine, Division of Endocrinology and DiabetologyMedical University of GrazGrazAustria
- JOANNEUM RESEARCH Forschungsgesellschaft mbHHEALTH–Institute for Biomedicine and Health SciencesGrazAustria
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16
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Fang L, Wu H, Li X, Fang J, Zhu Y. Improvement of Skin Wound Healing for Diabetic Mice with Thermosensitive Hydrogel Combined with Insulin Injection. Int J Endocrinol 2022; 2022:7847011. [PMID: 35311032 PMCID: PMC8930262 DOI: 10.1155/2022/7847011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 01/30/2022] [Accepted: 02/14/2022] [Indexed: 11/17/2022] Open
Abstract
Chronic skin wound caused by diabetic disease is very common worldwide. Moreover, there is a shortage of effective curing technology in clinic. In this work, we developed a novel technology using thermosensitive hydrogel on wound top combined with insulin injection. The efficiency and mechanism of this technology were investigated in a diabetic mouse model. Dorsal-paired 8-10 mm diameter wounds were created in 12 mice. The wound healing rate was determined over a 28-day interval in healthy control (Control), control with diabetes (DControl), poloxamer treatment (Pox), and poloxamer plus insulin injection (Poxin) mice. Histological specimens were observed in all samples. Real-time quantitative polymerase chain reaction (qRT-PCR) was performed to measure the relative expression of α-smooth muscle actin (α-SMA) and transforming growth factor beta 1 (TGF-β1) in wound tissues at 7, 14, and 28 days. Compared with DControl animals, those treated with Poxin showed accelerated wound closure and healing rate (p < 0.05); expression of both α-SMA and TGF-β1 was significantly higher than that of the DControl and Pox animals during the first 7 days postoperation, but a significant decrease at day 14. Therefore, we concluded that hydrogel combined with insulin accelerated wound healing. Controlling the glucose level via insulin injection is more beneficial than hydrogel alone for healing chronic wounds, potentially through the increase of α-SMA and TGF-β1 expression in early phase.
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Affiliation(s)
- Lingling Fang
- Endocrinology Department, Ningbo Medical Center Lihuili Hospital, Affiliated to Ningbo University, 1111 Jiangnan Road, Ningbo 315000, China
| | - Haijian Wu
- School of Medicine, Ningbo University, 818 Fenghua Road, Ningbo 315211, China
| | - Xiaoyan Li
- Medical Records and Statistics Office, Ningbo Medical Center Lihuili Hospital, 1111 Jiangnan Road, Ningbo 315000, China
| | - Jianghua Fang
- College of Material Science and Chemical Engineering, Ningbo University of Technology, 201 Fenghua Road, Ningbo 315211, China
| | - Yabin Zhu
- School of Medicine, Ningbo University, 818 Fenghua Road, Ningbo 315211, China
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17
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Hussain Z, Jamal Ahmed D, Mohammed Alkabra R, Thu HE, Khan S, Sohail M, Sarfraz RM, Ramli NA. Hyaluronic acid based nanomedicines as promising wound healers for acute-to-chronic wounds: a review of recent updates and emerging trends. INT J POLYM MATER PO 2021. [DOI: 10.1080/00914037.2021.2006655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Zahid Hussain
- Department of Pharmaceutics and Pharmaceutical Technology, College of Pharmacy, University of Sharjah, Sharjah, UAE
- Research Institute for Medical and Health Sciences, University of Sharjah, Sharjah, UAE
| | - Dalya Jamal Ahmed
- Department of Pharmaceutics and Pharmaceutical Technology, College of Pharmacy, University of Sharjah, Sharjah, UAE
| | - Ranim Mohammed Alkabra
- Department of Pharmaceutics and Pharmaceutical Technology, College of Pharmacy, University of Sharjah, Sharjah, UAE
| | - Hnin Ei Thu
- Innoscience Ressearch Sdn, Subang Jaya, Malaysia
- Research and Innovation Department, Lincoln University College, Petaling Jaya, Malaysia
| | - Shahzeb Khan
- Division of Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, The University of Texas, Austin, TX, USA
- Department of Pharmacy, University of Malakand, Chakdara, Pakistan
| | - Mohammad Sohail
- Department of Pharmacy, COMSATS University Islamabad, Abbottabad Campus, Abbottabad, Pakistan
| | | | - Nor Amlizan Ramli
- Department of Pharmaceutics, Faculty of Pharmacy, Universiti Teknologi MARA, Puncak Alam, Malaysia
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18
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Sun S, Zhang L, Liu J, Li H. Insulin Topical Application for Wound Healing in Nondiabetic Patients. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2021; 2021:9785466. [PMID: 34840600 PMCID: PMC8616663 DOI: 10.1155/2021/9785466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 10/08/2021] [Accepted: 10/28/2021] [Indexed: 11/27/2022]
Abstract
BACKGROUND Low-cost and safe strategies to improve wound healing will be of great social and economic value. The goal of this pilot clinical trial is aimed at analyzing how effective insulin therapy is at healing wounds in nondiabetic people. METHODS In this protocol research, 346 individuals were included. Patients were divided as 2 groups at random: experimental patients were given a ten-unit answer. For each 10 cm2 of wound, insulin was injected in solution with 1 mL 0.9 percent saline, whereas the control group got a standard dressing with normal saline. RESULTS During the therapy period, no adverse effects were reported. After insulin therapy, no substantial insulin-related side effects were reduced. After 10 days of therapy, the experimental group's granulation tissue coverage rate and thickness were considerably improved as compared to control. Furthermore, a momentous difference in the occurrence of wound bleeding and suppurative wounds between the two groups (P = 0.05). CONCLUSION The results of this pilot research suggest that insulin injections could harmless and effective alternative therapy for wound healing in nondiabetic individuals and that larger, placebo-controlled trials are needed to evaluate effectiveness and safety of insulin treatment in wound healing patients.
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Affiliation(s)
- Shudong Sun
- Department of Burn and Wound Repair, Weifang People's Hospital, Weifang, Shandong, China
| | - Lei Zhang
- Department of Burns and Plastic Surgery, Binzhou People's Hospital Binzhou, Shandong, China
| | - Jun Liu
- Department of Dermatology, Sunshine Union Hospital, Weifang, Shandong, China
| | - Huiling Li
- Department of Burn and Wound Repair Weifang People's Hospital, Weifang, Shandong, China
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19
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Patel N, Curtis JC, Plotkin BJ. Insulin Regulation of Escherichia coli Abiotic Biofilm Formation: Effect of Nutrients and Growth Conditions. Antibiotics (Basel) 2021; 10:antibiotics10111349. [PMID: 34827287 PMCID: PMC8615133 DOI: 10.3390/antibiotics10111349] [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: 09/15/2021] [Revised: 10/21/2021] [Accepted: 11/02/2021] [Indexed: 11/23/2022] Open
Abstract
Escherichia coli plays an important role in biofilm formation across a wide array of disease and ecological settings. Insulin can function as an adjuvant in the regulation of biofilm levels. The modulation of insulin-regulated biofilm formation by environmental conditions has not been previously described. In the present study, the effects that various environmental growth conditions and nutrients have on insulin-modulated levels of biofilm production were measured. Micropipette tips were incubated with E. coli ATCC® 25922™ in a Mueller Hinton broth (MH), or a yeast nitrogen base with 1% peptone (YNBP), which was supplemented with glucose, lactose, galactose and/or insulin (Humulin®-R). The incubation conditions included a shaking or static culture, at 23 °C or 37 °C. After incubation, the biofilm production was calculated per CFU. At 23 °C, the presence of insulin increased biofilm formation. The amount of biofilm formation was highest in glucose > galactose >> lactose, while the biofilm levels decreased in shaking cultures, except for galactose (3-fold increase; 0.1% galactose and 20 μU insulin). At 37 °C, regardless of condition, there was more biofilm formation/CFU under static conditions in YNBP than in MH, except for the MH containing galactose. E. coli biofilm formation is influenced by aeration, temperature, and insulin concentration in combination with the available sugars.
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Affiliation(s)
- Nina Patel
- Department of Microbiology and Immunology, College of Osteopathic Medicine, Midwestern University, Downers Grove, IL 60515, USA; (N.P.); (J.C.C.)
- Feinberg School of Medicine, Northwestern University, Chicago, IL 60625, USA
| | - Jeremy C. Curtis
- Department of Microbiology and Immunology, College of Osteopathic Medicine, Midwestern University, Downers Grove, IL 60515, USA; (N.P.); (J.C.C.)
| | - Balbina J. Plotkin
- Department of Microbiology and Immunology, College of Osteopathic Medicine, Midwestern University, Downers Grove, IL 60515, USA; (N.P.); (J.C.C.)
- Correspondence:
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20
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Maleki H, Khoshnevisan K, Sajjadi-Jazi SM, Baharifar H, Doostan M, Khoshnevisan N, Sharifi F. Nanofiber-based systems intended for diabetes. J Nanobiotechnology 2021; 19:317. [PMID: 34641920 PMCID: PMC8513238 DOI: 10.1186/s12951-021-01065-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Accepted: 09/28/2021] [Indexed: 01/01/2023] Open
Abstract
Diabetic mellitus (DM) is the most communal metabolic disease resulting from a defect in insulin secretion, causing hyperglycemia by promoting the progressive destruction of pancreatic β cells. This autoimmune disease causes many severe disorders leading to organ failure, lower extremity amputations, and ultimately death. Modern delivery systems e.g., nanofiber (NF)-based systems fabricated by natural and synthetic or both materials to deliver therapeutics agents and cells, could be the harbinger of a new era to obviate DM complications. Such delivery systems can effectively deliver macromolecules (insulin) and small molecules. Besides, NF scaffolds can provide an ideal microenvironment to cell therapy for pancreatic β cell transplantation and pancreatic tissue engineering. Numerous studies indicated the potential usage of therapeutics/cells-incorporated NF mats to proliferate/regenerate/remodeling the structural and functional properties of diabetic skin ulcers. Thus, we intended to discuss the aforementioned features of the NF system for DM complications in detail.
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Affiliation(s)
- Hassan Maleki
- Nano Drug Delivery Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran.
- Research and Development Team, Evolution Wound Dressing (EWD) Startup Co., Tehran, Iran.
| | - Kamyar Khoshnevisan
- Medical Nanotechnology and Tissue Engineering Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
- Research and Development Team, Evolution Wound Dressing (EWD) Startup Co., Tehran, Iran.
| | - Sayed Mahmoud Sajjadi-Jazi
- Cell Therapy and Regenerative Medicine Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, 1411713137, Tehran, Iran
- Research and Development Team, Evolution Wound Dressing (EWD) Startup Co., Tehran, Iran
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, 1411713137, Tehran, Iran
| | - Hadi Baharifar
- Department of Medical Nanotechnology, Applied Biophotonics Research Center, Science and Research Branch, Islamic Azad University, 1477893855, Tehran, Iran
- Research and Development Team, Evolution Wound Dressing (EWD) Startup Co., Tehran, Iran
| | - Maryam Doostan
- Nano Drug Delivery Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Nazanin Khoshnevisan
- Research and Development Team, Evolution Wound Dressing (EWD) Startup Co., Tehran, Iran
| | - Farshad Sharifi
- Research and Development Team, Evolution Wound Dressing (EWD) Startup Co., Tehran, Iran
- Elderly Health Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, 1411713137, Tehran, Iran
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, 1411713137, Tehran, Iran
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21
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Liu H, Wang J, Deng Y, Zou G, Xu J. Effects of topical insulin on wound healing: a meta-analysis of animal and clinical studies. Endocr J 2021; 68:969-979. [PMID: 33867397 DOI: 10.1507/endocrj.ej20-0575] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Various researches have reported that the application of topical insulin improves wound healing. Considering the lack of a quantitative comprehensive research on this matter, we conducted a meta-analysis of clinical research and experimental animal studies. Prospective and randomized controlled trials of PubMed, Embase, and Cochrane Library were conducted using appropriate search strategies to compare the effectiveness of topical application of saline and insulin on wounds. The standardized mean difference was calculated as follows: wound healing time, wound healing rate, wound area, and the percentage of wound contraction. Each study used the Cochrane risk-of-bias tool and RevMan 5.3 software to create aggregated assessments and forest plots. The quality of evidence was evaluated in accordance with the methods of the Grading of Recommendations, Assessment, Development and Evaluation working group. Four clinical and nine animal studies eligible for inclusion were included in the meta-analysis. The assessments for clinical studies were as follows: wound healing time, -2.48 [-3.44, -1.51] and wound healing rate, 22.23 [18.17, 26.28]. Meanwhile, for animal studies, the following assessments were noted: wound healing time, -1.27 [-1.75, -0.79]; wound contraction rate, 15.91 [13.88, 17.95]; and wound area, -19.3 [-21.16, -17.44]. For the measurement of the following results, only one animal study was performed, pericyte recruitment of microvessels. Based on the analysis, it can be preliminarily judged that application of topical insulin can aid wound healing.
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Affiliation(s)
- Honghong Liu
- Department of Endocrinology and Metabolism, the First Affiliated Hospital of Nanchang University, Nanchang, 330006, China
| | - Jiao Wang
- Department of Endocrinology and Metabolism, the First Affiliated Hospital of Nanchang University, Nanchang, 330006, China
| | - Yuanyuan Deng
- Department of Endocrinology and Metabolism, the First Affiliated Hospital of Nanchang University, Nanchang, 330006, China
| | - Guilin Zou
- Department of Endocrinology and Metabolism, the First Affiliated Hospital of Nanchang University, Nanchang, 330006, China
| | - Jixiong Xu
- Department of Endocrinology and Metabolism, the First Affiliated Hospital of Nanchang University, Nanchang, 330006, China
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22
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Development of a Topical Insulin Polymeric Nanoformulation for Skin Burn Regeneration: An Experimental Approach. Int J Mol Sci 2021; 22:ijms22084087. [PMID: 33920964 PMCID: PMC8071315 DOI: 10.3390/ijms22084087] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Revised: 04/10/2021] [Accepted: 04/12/2021] [Indexed: 01/30/2023] Open
Abstract
Insulin is a peptide hormone with many physiological functions, besides its use in diabetes treatment. An important role of insulin is related to the wound healing process-however, insulin itself is too sensitive to the external environment requiring the protective of a nanocarrier. Polymer-based nanoparticles can protect, deliver, and retain the protein in the target area. This study aims to produce and characterize a topical treatment for wound healing consisting of insulin-loaded poly-DL-lactide/glycolide (PLGA) nanoparticles. Insulin-loaded nanoparticles present a mean size of approximately 500 nm and neutral surface charge. Spherical shaped nanoparticles are observed by scanning electron microscopy and confirmed by atomic force microscopy. SDS-PAGE and circular dichroism analysis demonstrated that insulin preserved its integrity and secondary structure after the encapsulation process. In vitro release studies suggested a controlled release profile. Safety of the formulation was confirmed using cell lines, and cell viability was concentration and time-dependent. Preliminary safety in vivo assays also revealed promising results.
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23
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Li K, Li D, Li CH, Zhuang P, Dai C, Hu X, Wang D, Liu Y, Mei X, Rotello VM. Efficient in vivo wound healing using noble metal nanoclusters. NANOSCALE 2021; 13:6531-6537. [PMID: 33885532 PMCID: PMC8084111 DOI: 10.1039/d0nr07176e] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
The wound healing process involves multiple steps including hemostasis, inflammation, proliferation, and tissue remodeling. Nanomaterials have been employed externally for healing wounds. However, their use as systemic therapeutics has not been extensively explored. We report the use of ultra-small noble metal nanoclusters (NCs) for the treatment of skin wounds. Both in vitro and in vivo studies indicate NCs have comprehensive therapeutic effects for wound healing, promoting cell proliferation and migration while decreasing inflammation.
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Affiliation(s)
- Kuo Li
- Department of Orthopedics, The First Affiliated Hospital of Jinzhou Medical University, 40 Songpo Road, Jinzhou, China 121001, China.
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Mirhoseini M, Kianezhad MA, Rezaeipour B, Ghasemi M, Rezanejad Gatabi Z, Nia HS, Talebpour Amiri F. The synergistic effect of topical insulin and clindamycin on acute dermal wound healing in rat model: a histological study. J Histotechnol 2021; 44:70-79. [PMID: 33724161 DOI: 10.1080/01478885.2020.1861919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Reducing the duration of wound healing is important to decrease the chance of infection. Insulin as a peptide hormone has a role in wound healing. Also, the use of clindamycin in the treatment of skin wounds has been studied very little. The aim of this study was to evaluate the synergistic effect of insulin and clindamycin on full-thickness wound healing. In this study, 24 Wistar rats (weight 180-200 g) were randomly divided into four equal groups: control (Eucerin), clindamycin, insulin, and insulin + clindamycin. Drugs were administered in the form of an ointment daily for twelve days. Wound healing rate and wound criteria such as epithelialization, neovascularization, collagen deposition, inflammation, and tissue granulation were investigated histologically on days 3, 7, and 14. The wound healing rate in the insulin + clindamycin group was significantly higher than the other groups on day 7 but there was no significant difference between groups on day 14. In addition, the combination of insulin and clindamycin had a beneficial effect on reducing inflammation and increasing collagen deposition, fibroblast maturation, neovascularization, and keratinization. The data showed that the topical application of insulin with clindamycin has an effective role in full-thickness wound healing by reducing inflammation and accelerating wound closure.
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Affiliation(s)
- Mehri Mirhoseini
- Amol Faculty of Paramedical Sciences, Mazandaran University of Medical Sciences, Sari, Iran.,Amol Faculty of Nursing and Midwifery, Mazandaran University of Medical Sciences, Sari, Iran
| | | | - Behnam Rezaeipour
- Amol Faculty of Paramedical Sciences, Mazandaran University of Medical Sciences, Sari, Iran
| | - Maryam Ghasemi
- Department of Pathology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Zahra Rezanejad Gatabi
- Department of Pharmaceutics, Faculty of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran
| | - Hamid Sharif Nia
- Amol Faculty of Nursing and Midwifery, Mazandaran University of Medical Sciences, Sari, Iran
| | - Fereshteh Talebpour Amiri
- Department of Anatomy, Faculty of Medicine, Molecular and Cell Biology Research Center, Mazandaran University of Medical Sciences, Sari, Iran
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Synthesis and evaluation of an alginate-methacrylate xerogel for insulin delivery towards wound healing applications. Ther Deliv 2021; 12:215-234. [PMID: 33715405 DOI: 10.4155/tde-2020-0128] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Background: Alginate is one of the most widely used biopolymer for wound healing. But poor mechanical strength and degradability limits its application especially as a drug-delivery matrix. The aim of this study was to develop stable alginate based scaffold for insulin delivery toward wound care. Materials & methods: The xerogel alginate-g-poly (methacrylic acid; AGM2S) was characterized by various analytical techniques. Results: AGM2S xerogel showed improved physical stability, low degradation, good swelling and water vapour transmission rate (WVTR). About 70% of insulin was released from loaded xerogel over a period of 48 h and favorably modulated the healing response in in vitro scratch wound assay. Conclusion: Grafting improved the strength and stability of alginate xerogel and the results suggest the application of insulin loaded AGM2S xerogels as a potential wound healing material.
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Fenner BP, Darden DB, Kelly LS, Rincon J, Brakenridge SC, Larson SD, Moore FA, Efron PA, Moldawer LL. Immunological Endotyping of Chronic Critical Illness After Severe Sepsis. Front Med (Lausanne) 2021; 7:616694. [PMID: 33659259 PMCID: PMC7917137 DOI: 10.3389/fmed.2020.616694] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Accepted: 12/14/2020] [Indexed: 12/15/2022] Open
Abstract
Improved management of severe sepsis has been one of the major health care accomplishments of the last two decades. Due to enhanced recognition and improved management of severe sepsis, in-hospital mortality has been reduced by up to 40%. With that good news, a new syndrome has unfortunately replaced in-hospital multi-organ failure and death. This syndrome of chronic critical illness (CCI) includes sepsis patients who survive the early "cytokine or genomic storm," but fail to fully recover, and progress into a persistent state of manageable organ injury requiring prolonged intensive care. These patients are commonly discharged to long-term care facilities where sepsis recidivism is high. As many as 33% of sepsis survivors develop CCI. CCI is the result, at least in part, of a maladaptive host response to chronic pattern-recognition receptor (PRR)-mediated processes. This maladaptive response results in dysregulated myelopoiesis, chronic inflammation, T-cell atrophy, T-cell exhaustion, and the expansion of suppressor cell functions. We have defined this panoply of host responses as a persistent inflammatory, immune suppressive and protein catabolic syndrome (PICS). Why is this important? We propose that PICS in survivors of critical illness is its own common, unique immunological endotype driven by the constant release of organ injury-associated, endogenous alarmins, and microbial products from secondary infections. While this syndrome can develop as a result of a diverse set of pathologies, it represents a shared outcome with a unique underlying pathobiological mechanism. Despite being a common outcome, there are no therapeutic interventions other than supportive therapies for this common disorder. Only through an improved understanding of the immunological endotype of PICS can rational therapeutic interventions be designed.
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Affiliation(s)
- Brittany P Fenner
- Department of Surgery, Sepsis and Critical Illness Research Center, University of Florida College of Medicine, Gainesville, FL, United States
| | - D B Darden
- Department of Surgery, Sepsis and Critical Illness Research Center, University of Florida College of Medicine, Gainesville, FL, United States
| | - Lauren S Kelly
- Department of Surgery, Sepsis and Critical Illness Research Center, University of Florida College of Medicine, Gainesville, FL, United States
| | - Jaimar Rincon
- Department of Surgery, Sepsis and Critical Illness Research Center, University of Florida College of Medicine, Gainesville, FL, United States
| | - Scott C Brakenridge
- Department of Surgery, Sepsis and Critical Illness Research Center, University of Florida College of Medicine, Gainesville, FL, United States
| | - Shawn D Larson
- Department of Surgery, Sepsis and Critical Illness Research Center, University of Florida College of Medicine, Gainesville, FL, United States
| | - Frederick A Moore
- Department of Surgery, Sepsis and Critical Illness Research Center, University of Florida College of Medicine, Gainesville, FL, United States
| | - Philip A Efron
- Department of Surgery, Sepsis and Critical Illness Research Center, University of Florida College of Medicine, Gainesville, FL, United States
| | - Lyle L Moldawer
- Department of Surgery, Sepsis and Critical Illness Research Center, University of Florida College of Medicine, Gainesville, FL, United States
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Topical Nifedipine for the Treatment of Pressure Ulcer: A Randomized, Placebo-Controlled Clinical Trial. Am J Ther 2021; 28:e41-e51. [PMID: 31241491 DOI: 10.1097/mjt.0000000000000936] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
BACKGROUND Effect of nifedipine on pressure ulcer (PU) healing has not been evaluated in the human subjects yet. STUDY QUESTION In this study, the effect of topical application of nifedipine 3% ointment on PU healing in critically ill patients was investigated. STUDY DESIGN This was a randomized, double-blind, placebo-controlled clinical. MEASURES AND OUTCOMES In this study, 200 patients with stage I or II PU according to 2-digit Stirling Pressure Ulcer Severity Scale were randomized to receive topical nifedipine 3% ointment or placebo twice daily for 14 days. Changes in the size and stage of the ulcers were considered as primary outcome of the study. The stage of the ulcers at baseline and on day 7 and day 14 of study was determined by using 2-digit stirling scale. In addition, the surface area of the wounds was estimated by multiplying width by length. RESULTS In total, 83 patients in each group completed the study. The groups were matched for the baseline stage and size of PUs. Mean decrease in the stage of PU in the nifedipine group was significantly higher than the placebo group on day 7 (-1.71 vs. -0.16, respectively, P < 0.001) and day 14 (-0.78 vs. -0.09, respectively, P < 0.001). Furthermore, the mean decrease in the surface area of PU was significantly higher in the nifedipine group compared with the placebo group on day 7 (-1.44 vs. -0.32, respectively, P < 0.001) and day 14 (-2.51 vs. -0.24, respectively, P < 0.001) of study. CONCLUSIONS Topical application of nifedipine 3% ointment for 14 days significantly improved the healing process of stage I or II PUs in critically ill patients.
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Brazel CB, Simon JC, Tuckermann JP, Saalbach A. Inhibition of 11β-HSD1 Expression by Insulin in Skin: Impact for Diabetic Wound Healing. J Clin Med 2020; 9:jcm9123878. [PMID: 33260645 PMCID: PMC7760287 DOI: 10.3390/jcm9123878] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 11/24/2020] [Accepted: 11/26/2020] [Indexed: 01/20/2023] Open
Abstract
Chronic, non-healing wounds impose a great burden on patients, professionals and health care systems worldwide. Diabetes mellitus (DM) and obesity are globally highly prevalent metabolic disorders and increase the risk for developing chronic wounds. Glucocorticoids (GCs) are endogenous stress hormones that exert profound effects on inflammation and repair systems. 11-beta-hydroxysteroid dehydrogenase 1 (11β-HSD1) is the key enzyme which controls local GC availability in target tissues such as skin. Since treatment with GCs has detrimental side effects on skin integrity, causing atrophy and delayed wound healing, we asked whether the dysregulated expression of 11β-HSD1 and consequently local GC levels in skin contribute to delayed wound healing in obese, diabetic db/db mice. We found increased expression of 11β-HSD1 during disturbed wound healing and in the healthy skin of obese, diabetic db/db mice. Cell analysis revealed increased expression of 11β-HSD1 in fibroblasts, myeloid cells and dermal white adipose tissue from db/db mice, while expression in keratinocytes was unaffected. Among diabetes- and obesity-related factors, insulin and insulin-like growth factor 1 down-regulated 11β-HSD1 expression in fibroblasts and myeloid cells, while glucose, fatty acids, TNF-α and IL-1β did not affect it. Insulin exerted its inhibitory effect on 11β-HSD1 expression by activating PI3-kinase/Akt-signalling. Consequently, the inhibitory effect of insulin is attenuated in fibroblasts from insulin-resistant db/db mice. We conclude that insulin resistance in obesity and diabetes prevents the down-regulation of 11β-HSD1, leading to elevated endogenous GC levels in diabetic skin, which could contribute to impaired wound healing in patients with DM.
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Affiliation(s)
- Christina B. Brazel
- Department of Dermatology, Venereology and Allergology, Faculty of Medicine, Leipzig University, Johannisallee 30, 04103 Leipzig, Germany; (C.B.B.); (J.C.S.)
| | - Jan C. Simon
- Department of Dermatology, Venereology and Allergology, Faculty of Medicine, Leipzig University, Johannisallee 30, 04103 Leipzig, Germany; (C.B.B.); (J.C.S.)
| | - Jan P. Tuckermann
- Institute of Comparative Molecular Endocrinology, Ulm University, 89081 Ulm, Germany;
- Klinikum der Universität München, Ludwig-Maximilian University of Munich, 80336 Munich, Germany
| | - Anja Saalbach
- Department of Dermatology, Venereology and Allergology, Faculty of Medicine, Leipzig University, Johannisallee 30, 04103 Leipzig, Germany; (C.B.B.); (J.C.S.)
- Correspondence: ; Tel.: +49-341-9725880; Fax: +49-341-9725878
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Abianeh SH, Bajestani SM, Rahmati J, Shahrbaf MA, Shirzad N. The effect of local insulin injection on the healing process of split thickness skin graft donor site: a randomized, double-blind, placebo control clinical trial. EUROPEAN JOURNAL OF PLASTIC SURGERY 2020. [DOI: 10.1007/s00238-020-01683-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Rapid gelation of oxidized hyaluronic acid and succinyl chitosan for integration with insulin-loaded micelles and epidermal growth factor on diabetic wound healing. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 117:111273. [PMID: 32919637 DOI: 10.1016/j.msec.2020.111273] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2018] [Revised: 04/21/2020] [Accepted: 07/04/2020] [Indexed: 12/15/2022]
Abstract
In this work, poly(ethylene glycol)-b-poly[3-acrylamidophenylboronic acid-co-styrene] (PEG-b-P(PBA-co-St) has been firstly synthesized for loading of insulin to form insulin-loaded micelles. Insulin-loaded micelles (ILM) and epidermal growth factor (EGF) are further embedded into the composite hydrogels that can be rapidly gelled by mixing of oxidized hyaluronic acid (OHA) and succinyl chitosan (SCS). Then, the morphology, rheology, degradation, swelling and cytotoxicity properties of the as-prepared composite hydrogels are further investigated to evaluate their physical properties and biocompatibility of as the wound dressing. The as-prepared composite hydrogels show the excellent cell compatibility and low toxicity. To evaluate the wound healing ability of as-prepared composite hydrogels, the tests of wound healing in vivo are conducted on streptozotocin-induced rat models. And the as-prepared composite hydrogels with ILM and EGF show an excellent wound healing performance for promotion of fibroblast proliferation and tissue internal structure integrity, as well as the deposition of collagen and myofibrils. These results suggest that the as-prepared composite hydrogels with loading of ILM and EGF could be a promising candidate for wound healing applications.
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Wang X, Yang XL, Liu KC, Sheng WL, Xia Q, Wang RC, Chen XQ, Zhang Y. Effects of streptozotocin on pancreatic islet β-cell apoptosis and glucose metabolism in zebrafish larvae. FISH PHYSIOLOGY AND BIOCHEMISTRY 2020; 46:1025-1038. [PMID: 31993854 DOI: 10.1007/s10695-020-00769-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Accepted: 01/21/2020] [Indexed: 06/10/2023]
Abstract
Type 1 diabetes is characterized by an increase in blood glucose levels resulting from damage to β cells in pancreatic islets and the consequent absolute insufficiency of insulin. Animal models of type 1 diabetes were usually established using drugs toxic to β cells, such as streptozotocin (STZ). To assess the application of zebrafish larvae in diabetes research, we explore the effects of STZ on pancreatic islets and glucose metabolism in zebrafish larvae. STZ was microinjected into the pericardial cavity of zebrafish larvae on alternate days for three times. At 2 days after the whole series of STZ injection (12 dpf), free-glucose level in larvae tissue shows a significant increase, and the fluorescence signal in immunohistochemistry, which indicates the insulin expression, was significantly weaker compared with the solution-injected control. Obvious apoptosis signals were also observed in the location of pancreatic islet, and insulin content decreased to be undetectable in STZ-injected larvae. Gene expression level of ins decreased to half of the solution injection control and that of casp3a was upregulated by 2.20-fold. Expression level of glut2 and gck decreased to 0.312-fold and 0.093-fold, respectively. pck1 was upregulated by 2.533-fold in STZ-injected larvae. By tracking detection, we found the free-glucose level in STZ-injected larvae gradually approached the level of the solution injection control and the insulin content recovered at 6 days post-STZ injection (16 dpf). Consistent with the change of the glucose level, the regeneration rate of the caudal fin in the STZ-injected group decreased initially, but recovered and accelerated gradually finally at 8 days post-amputation (20 dpf). These results indicate the generation of a transient hyperglycemia model due to β-cell apoptosis caused by STZ, which is abated by the vigorous regeneration ability of β cells in zebrafish larvae.
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Affiliation(s)
- Xue Wang
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), 28789 Jingshidong Road, Licheng District, Jinan, 250103, Shandong Province, People's Republic of China
- Key Laboratory for Drug Screening Technology of Shandong Academy of Sciences, Jinan, 250103, Shandong Province, China
| | - Xue-Liang Yang
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), 28789 Jingshidong Road, Licheng District, Jinan, 250103, Shandong Province, People's Republic of China
- Key Laboratory for Drug Screening Technology of Shandong Academy of Sciences, Jinan, 250103, Shandong Province, China
| | - Ke-Chun Liu
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), 28789 Jingshidong Road, Licheng District, Jinan, 250103, Shandong Province, People's Republic of China
- Key Laboratory for Drug Screening Technology of Shandong Academy of Sciences, Jinan, 250103, Shandong Province, China
| | - Wen-Long Sheng
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), 28789 Jingshidong Road, Licheng District, Jinan, 250103, Shandong Province, People's Republic of China
- Key Laboratory for Drug Screening Technology of Shandong Academy of Sciences, Jinan, 250103, Shandong Province, China
| | - Qing Xia
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), 28789 Jingshidong Road, Licheng District, Jinan, 250103, Shandong Province, People's Republic of China
- Key Laboratory for Drug Screening Technology of Shandong Academy of Sciences, Jinan, 250103, Shandong Province, China
| | - Rong-Chun Wang
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), 28789 Jingshidong Road, Licheng District, Jinan, 250103, Shandong Province, People's Republic of China
- Key Laboratory for Drug Screening Technology of Shandong Academy of Sciences, Jinan, 250103, Shandong Province, China
| | - Xi-Qiang Chen
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), 28789 Jingshidong Road, Licheng District, Jinan, 250103, Shandong Province, People's Republic of China
- Key Laboratory for Drug Screening Technology of Shandong Academy of Sciences, Jinan, 250103, Shandong Province, China
| | - Yun Zhang
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), 28789 Jingshidong Road, Licheng District, Jinan, 250103, Shandong Province, People's Republic of China.
- Key Laboratory for Drug Screening Technology of Shandong Academy of Sciences, Jinan, 250103, Shandong Province, China.
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Berlanga-Acosta J, Iglesias-Marichal I, Rodríguez-Rodríguez N, Mendoza-Marí Y, García-Ojalvo A, Fernández-Mayola M, Playford RJ. Review: Insulin resistance and mitochondrial dysfunction following severe burn injury. Peptides 2020; 126:170269. [PMID: 32045621 DOI: 10.1016/j.peptides.2020.170269] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 02/06/2020] [Accepted: 02/07/2020] [Indexed: 02/06/2023]
Abstract
The insulin signaling pathway plays a pivotal role in glucose metabolism and metabolic homeostasis. Disruption of this pathway is commonly seen in critical illness such as following severe burn injuries where homeostatic control is lost, leading to "insulin resistance" with poor blood glucose control. The aberrant signaling pathways involved in insulin resistance following burn injury include increases in hyperglycemic stress hormones, pro-inflammatory cytokines and free radical production. Leakage of mitochondrial sequestered self-antigens and signaling between mitochondria and endoplasmic reticulum also contribute to insulin resistance. Greater understanding of molecular processes involved in burn-related insulin resistance could potentially lead to the development of novel therapeutic approaches to improve patient management.
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Affiliation(s)
- Jorge Berlanga-Acosta
- Tissue Repair and Cytoprotection Group, Biomedical Research Direction, Center for Genetic Engineering and Biotechnology, Ave 31 e/158 and 190. Playa, Havana, 10600, Cuba
| | | | - Nadia Rodríguez-Rodríguez
- Tissue Repair and Cytoprotection Group, Biomedical Research Direction, Center for Genetic Engineering and Biotechnology, Ave 31 e/158 and 190. Playa, Havana, 10600, Cuba
| | - Yssel Mendoza-Marí
- Tissue Repair and Cytoprotection Group, Biomedical Research Direction, Center for Genetic Engineering and Biotechnology, Ave 31 e/158 and 190. Playa, Havana, 10600, Cuba
| | - Ariana García-Ojalvo
- Tissue Repair and Cytoprotection Group, Biomedical Research Direction, Center for Genetic Engineering and Biotechnology, Ave 31 e/158 and 190. Playa, Havana, 10600, Cuba
| | - Maday Fernández-Mayola
- Tissue Repair and Cytoprotection Group, Biomedical Research Direction, Center for Genetic Engineering and Biotechnology, Ave 31 e/158 and 190. Playa, Havana, 10600, Cuba
| | - Raymond J Playford
- University of Plymouth, Peninsula Schools of Medicine and Dentistry, Plymouth, UK.
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Wang J, Xu J. Effects of Topical Insulin on Wound Healing: A Review of Animal and Human Evidences. Diabetes Metab Syndr Obes 2020; 13:719-727. [PMID: 32214835 PMCID: PMC7078652 DOI: 10.2147/dmso.s237294] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Accepted: 02/25/2020] [Indexed: 12/12/2022] Open
Abstract
Wound healing is a complex biological process that repairs damaged tissues and restores skin integrity. Insulin, a potent factor of wound healing, has been reported for nearly a century to induce rapid recovery of various wounds, as shown by numerous human and animal studies. Although many studies have addressed the healing effect of systemic insulin on burn wound, only few have investigated the efficacy of topical insulin. Thus, this study aimed to review evidence of the effects of topical insulin on wound healing, including on diabetic and non-diabetic wounds. The presented animal and clinical studies support that topical insulin improves wound healing through several mechanisms without causing side effects. Additionally, various wound dressings accelerate the wound healing with controlled and sustained delivery of bioactive insulin. Therefore, topical insulin has been appreciated in field of wound healing, and further studies are needed to improve our understanding of the role of insulin in the healing of various wounds.
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Affiliation(s)
- Jiao Wang
- Department of Endocrinology and Metabolism, First Affiliated Hospital of Nanchang University, Nanchang, People’s Republic of China
| | - Jixiong Xu
- Department of Endocrinology and Metabolism, First Affiliated Hospital of Nanchang University, Nanchang, People’s Republic of China
- Correspondence: Jixiong Xu Department of Endocrinology and Metabolism, First Affiliated Hospital of Nanchang University, No. 17 Yongwaizheng St., Nanchang, Jiangxi Province330006, People’s Republic of ChinaTel +86 13307086069 Email
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Gus EI, Shahrokhi S, Jeschke MG. Anabolic and anticatabolic agents used in burn care: What is known and what is yet to be learned. Burns 2019; 46:19-32. [PMID: 31852612 DOI: 10.1016/j.burns.2018.03.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Revised: 01/17/2018] [Accepted: 03/18/2018] [Indexed: 12/15/2022]
Abstract
Major thermal injury induces profound metabolic derangements secondary to an inflammatory "stress-induced" hormonal environment. Several pharmacological interventions have been tested in an effort to halt the hypermetabolic response to severe burns. Insulin, insulin growth factor 1, insulin growth factor binding protein 3, metformin, human growth hormone, thyroid hormones, testosterone, oxandrolone, and propranolol, among others, have been proposed to have anabolic or anticatabolic effects. The aim of this broad analysis of pharmacological interventions was to raise awareness of treatment options and to help establishing directions for future clinical research efforts. A PubMed search was conducted on the anabolic and anticatabolic agents used in burn care. One hundred and thirty-five human studies published between 1999 and 2017 were included in this review. The pharmacological properties, rationale for the treatments, efficacy considerations and side effect profiles are summarized in the article. Many of the drugs tested for investigational purposes in the severely thermally injured are not yet gold-standard therapies in spite of their potential benefit. Propranolol and oxandrolone have shown great promise but further evidence is still needed to clarify their potential use for anabolic and anticatabolic purposes.
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Affiliation(s)
- Eduardo I Gus
- Ross Tilley Burn Centre, Sunnybrook Health Sciences Centre, University of Toronto, 2075 Bayview Avenue, D704, Toronto, ON M4N 3M5, Canada
| | - Shahriar Shahrokhi
- Ross Tilley Burn Centre, Sunnybrook Health Sciences Centre, University of Toronto, 2075 Bayview Avenue, D704, Toronto, ON M4N 3M5, Canada; Division of Plastic Surgery, Department of Surgery, University of Toronto, Toronto, ON, Canada
| | - Marc G Jeschke
- Ross Tilley Burn Centre, Sunnybrook Health Sciences Centre, University of Toronto, 2075 Bayview Avenue, D704, Toronto, ON M4N 3M5, Canada; Division of Plastic Surgery, Department of Surgery, University of Toronto, Toronto, ON, Canada; Department of Immunology, University of Toronto, Toronto, ON, Canada; Sunnybrook Research Institute, Toronto, ON, Canada.
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Cubayachi C, Lemos CN, Pereira F, Dias K, Herculano RD, de Freitas O, Lopez RF. Silk fibroin films stabilizes and releases bioactive insulin for the treatment of corneal wounds. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.06.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Shao Y, Dang M, Lin Y, Xue F. Evaluation of wound healing activity of plumbagin in diabetic rats. Life Sci 2019; 231:116422. [DOI: 10.1016/j.lfs.2019.04.048] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2018] [Revised: 04/08/2019] [Accepted: 04/18/2019] [Indexed: 12/13/2022]
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Azevedo FF, Moreira GV, Teixeira CJ, Pessoa AFM, Alves MJ, Liberti EA, Carvalho CRO, Araújo EP, Saad MJA, Lima MHM. Topical Insulin Modulates Inflammatory and Proliferative Phases of Burn-Wound Healing in Diabetes-Induced Rats. Biol Res Nurs 2019; 21:473-484. [PMID: 31337227 DOI: 10.1177/1099800419864443] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The healing time of burn wounds depends on surface area and depth of the burn and associated comorbidities. Diabetes mellitus (DM) causes delays in the healing process by extending the inflammatory phase. Treatment with topical insulin can improve the inflammatory phase, restore metabolic dysregulation, and modulate impaired cellular signaling in burn wounds. The objective of this study was to evaluate markers of the inflammatory and proliferative phases of second-degree burns after topical insulin treatment in diabetic rats. Type I DM was induced with streptozotocin in male Wistar rats. The animals' backs were shaved and subjected to thermal burning. Rats were randomized into two groups: control diabetic (DC) and insulin diabetic (DI). At Days 7 and 14 postburn, rats were euthanized, and wound-tissue sections were evaluated by hematoxylin and eosin, Weigert, and Verhöeff staining, immunohistochemistry-paraffin, and enzyme-linked immunosorbent assay. A significant increase in reepithelialization was seen on Days 7 and 14 in DI versus DC rats. On Day 7, interleukin (IL)-1β, IL-6, monocyte chemotactic protein (MCP)-1, and F4/80 expression were increased in DI versus DC rats. On Day 14, MCP-1 expression was decreased and F4/80 increased in DI versus DC rats. On Days 7 and 14, Ki-67, transforming growth factor-β1, vascular endothelial growth factor expression, and formation of elastic fibers were increased in DI versus DC rats. Topical insulin modulates burn-wound healing in diabetic animals by balancing inflammation and promoting angiogenesis and formation of elastic fibers.
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Affiliation(s)
| | - Gabriela Virgínia Moreira
- 2 Department of Physiology and Biophysiology, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Caio Jordão Teixeira
- 3 Department of Pharmacology, Faculty of Medical Sciences, State University of Campinas, Campinas, Sao Paulo, Brazil
| | - Ana Flávia Marçal Pessoa
- 4 Department of Cell Biology and Development, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Michele Joana Alves
- 4 Department of Cell Biology and Development, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Edson Aparecido Liberti
- 5 Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | | | | | - Mário José Abdala Saad
- 6 Department of Internal Medicine, Faculty of Medical Sciences, State University of Campinas, Campinas, Sao Paulo, Brazil
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Wang L, Yang B, Jiang H, Yu G, Feng M, Lu X, Luo Q, Wu H, Zhang S, Liu H. The molecular mechanism study of insulin in promoting wound healing under high-glucose conditions. J Cell Biochem 2019; 120:16244-16253. [PMID: 31081255 DOI: 10.1002/jcb.28905] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Revised: 03/15/2019] [Accepted: 03/22/2019] [Indexed: 01/20/2023]
Abstract
BACKGROUND Wound healing is a complex process in bone development. The aim of this study was to explore the molecular mechanism study of insulin in promoting wound healing. METHODS Firstly, the acute human monocyte leukemia cell lines were induced to differentiate into macrophages. Secondly, the porphyromonas gingivalis was applied to mix with the differentiated macrophages. Thirdly, the effect of different concentrations of insulin (0 ng/mL, 5 ng/mL, 50 ng/mL, 100 ng/mL, 200 ng/mL, 500 ng/mL, and 1,000 ng/mL) on the phagocytosis of macrophages and production of reactive oxygen species was investigated. Depending on these experiments, the optimal insulin concentration was used to treat the macrophages at different time points (0 hours and 0.5 hours) to identify the differentially expressed mRNAs. Finally, functional analysis including gene ontology (GO) and the Kyoto Encyclopedia of Genes and Genomes (KEGG) and protein-protein interaction (PPI) analysis was carried out to explore the biological function of these differentially expressed mRNAs. RESULTS The test of phagocytosis function and production of reactive oxygen species showed that 200 ng/mL insulin treatment had a significant influence on antibacterial and production of reactive oxygen species. In RNA sequencing, a total of 415 (245 upregulated and 170 downregulated) differentially expressed mRNAs were identified between different time points. Two important signaling pathways including endocytosis and systemic lupus erythematosus were found in the KEGG enrichment analysis. In the PPI network, several hub proteins encoded by differentially expressed mRNA including ALB, HIP1R, RAB5A, HIST1H2BJ, HIST1H3G, and HIST1H2BO were identified. CONCLUSION Our work demonstrated that several differentially expressed mRNAs, such as EGR1, RAB34, ALB, HIP1R, RAB5A, HIST1H2BJ, HIST1H3G, and HIST1H2BO and two important signaling pathways including endocytosis and systemic lupus erythematosus may play important roles in the bone wound healing.
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Affiliation(s)
- Lin Wang
- Department of Stomatology, General Hospital of Chinese People's Liberation Army, Beijing, China
| | - Bai Yang
- Department of Stomatology, General Hospital of Chinese People's Liberation Army, Beijing, China
| | - Hua Jiang
- Department of Stomatology, General Hospital of Chinese People's Liberation Army, Beijing, China
| | - Guo Yu
- Department of Stomatology, General Hospital of Chinese People's Liberation Army, Beijing, China
| | - Mi Feng
- Department of applied chemistry, Chinese Academy of sciences key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China.,Department of applied chemistry, College of Chemical and Engineering, University of Chinese Academy of Sciences, Beijing, China
| | - Xingmei Lu
- Department of chemical engineering and technology, Chinese Academy of sciences key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China.,Department of chemical engineering and technology, College of Chemical and Engineering, University of Chinese Academy of Sciences, Beijing, China
| | - Qiang Luo
- Department of Stomatology, General Hospital of Chinese People's Liberation Army, Beijing, China
| | - Hao Wu
- Department of Stomatology, General Hospital of Chinese People's Liberation Army, Beijing, China
| | - Shuo Zhang
- Department of Stomatology, General Hospital of Chinese People's Liberation Army, Beijing, China
| | - Hongchen Liu
- Department of Stomatology, General Hospital of Chinese People's Liberation Army, Beijing, China
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Stuermer EK, Besser M, Terberger N, Koester V, Bachmann HS, Severing AL. Side effects of frequently used oral antidiabetics on wound healing in vitro. Naunyn Schmiedebergs Arch Pharmacol 2018; 392:371-380. [PMID: 30535571 DOI: 10.1007/s00210-018-01597-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Accepted: 11/27/2018] [Indexed: 11/24/2022]
Abstract
Lifestyle diseases such as diabetes and arteriosclerosis are rising in the increasingly aging society, and the number of patients with daily intake of glucose-lowering medication has also increased. Interestingly, knowledge about oral antidiabetics with regard to wound healing is scarce. Therefore, the aim of this study was to identify possible (side) effects of the most frequently prescribed oral antidiabetics on skin cells and wound healing. Four oral antidiabetics of different substance classes (i.e., metformin, glibenclamide, sitagliptin, repaglinide) were investigated with regard to the promotion of cell metabolism and migration of human skin fibroblasts and keratinocytes by XTT and scratch assays. In addition, histological and immunohistochemical analyses were performed in a 3D wound model to address the impact of the antidiabetics on regeneration processes, such as cell migration, fibroblast activity, epidermal thickness, and cell apoptosis. In comparison to systemic application, metformin displayed the most adverse effects in vitro in nearly all analyses, interestingly at serum equivalent concentrations. In contrast, sitagliptin and glibenclamide had a slight but insignificant effect on fibroblasts compared with keratinocytes. Repaglinide tended to have a negative influence on keratinocyte metabolism. Interestingly, antidiabetics generally induced a significantly enhanced rate of apoptosis in fibroblasts, with the exception of repaglinide.Antidiabetics influenced key players in wound healing, namely, keratinocytes and fibroblasts. Particularly, metformin impaired human skin cells. These findings should be kept in mind in further studies because of their putative relevance in patients suffering from chronic wounds that do not respond to various wound therapies.
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Affiliation(s)
- Ewa Klara Stuermer
- Institute of Translational Wound Research, Centre for Biomedical Education and Research (ZBAF), Witten/Herdecke University, Stockumer Street 10, 58453, Witten, Germany.
| | - M Besser
- Institute of Translational Wound Research, Centre for Biomedical Education and Research (ZBAF), Witten/Herdecke University, Stockumer Street 10, 58453, Witten, Germany
| | - N Terberger
- Institute of Translational Wound Research, Centre for Biomedical Education and Research (ZBAF), Witten/Herdecke University, Stockumer Street 10, 58453, Witten, Germany
| | - V Koester
- Institute of Translational Wound Research, Centre for Biomedical Education and Research (ZBAF), Witten/Herdecke University, Stockumer Street 10, 58453, Witten, Germany
| | - H S Bachmann
- Institute of Pharmacology and Toxicology, Centre for Biomedical Education and Research (ZBAF), Witten/Herdecke University, Witten, Germany
| | - A L Severing
- Institute of Translational Wound Research, Centre for Biomedical Education and Research (ZBAF), Witten/Herdecke University, Stockumer Street 10, 58453, Witten, Germany
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Abdelkader DH, Tambuwala MM, Mitchell CA, Osman MA, El-Gizawy SA, Faheem AM, El-Tanani M, McCarron PA. Enhanced cutaneous wound healing in rats following topical delivery of insulin-loaded nanoparticles embedded in poly(vinyl alcohol)-borate hydrogels. Drug Deliv Transl Res 2018; 8:1053-1065. [PMID: 29971752 PMCID: PMC6133079 DOI: 10.1007/s13346-018-0554-0] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Insulin plays an important role in the wound healing process, but its method of delivery to the wound bed and subsequent effect on rate of healing is less well investigated. In this study, we evaluated the therapeutic effectiveness of topical human insulin delivery using a nanoparticulate delivery system suspended in a structured hydrogel vehicle. Poly(lactide-co-glycolide) (PLGA) nanoparticles (NP) of 202.6 nm diameter and loaded with 33.86 μg insulin per milligram of polymer were formulated using a modified double-emulsion solvent evaporation technique and dispersed in a dilatant hydrogel (poly(vinyl alcohol)-borate). Importantly, this hydrogel formulation was used to achieve ultimate contact with the wound bed. A comparison of wound healing rates following local administration of insulin in the free and nanoencapsulated forms was performed in diabetic and healthy rats. In non-diabetic rats, there was no significant difference between healing observed in control and wounds treated with free insulin (p > 0.05), whereas treatment with insulin encapsulated within PLGA NP showed a significant difference (p < 0.001). In diabetic cohorts, both free insulin and nanoencapsulated insulin induced significant improvement in wound healing when compared to controls, with better percentage wound injury indices observed with the colloidal formulation. At day 10 of the experiment, the difference between percentage wound injury indices of insulin-PLGA NP and free insulin comparing to their controls were 29.15 and 12.16%, respectively. These results support strongly the potential of insulin-loaded colloidal carriers for improved wound healing when delivered using dilatant hydrogel formulations.
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Affiliation(s)
- Dalia H Abdelkader
- School of Pharmacy and Pharmaceutical Sciences, Saad Centre for Pharmacy and Diabetes, Ulster University, Cromore Road, Coleraine, Co., Londonderry, BT52 1SA, UK
- Faculty of Pharmacy, Pharmaceutical Technology Department, Tanta University, Tanta, 31111, Egypt
| | - Murtaza M Tambuwala
- School of Pharmacy and Pharmaceutical Sciences, Saad Centre for Pharmacy and Diabetes, Ulster University, Cromore Road, Coleraine, Co., Londonderry, BT52 1SA, UK
| | - Christopher A Mitchell
- School of Biomedical Sciences, Ulster University, Cromore Road, Coleraine Co., Londonderry, BT52 1SA, UK
| | - Mohamed A Osman
- Faculty of Pharmacy, Pharmaceutical Technology Department, Tanta University, Tanta, 31111, Egypt
| | - Sanaa A El-Gizawy
- Faculty of Pharmacy, Pharmaceutical Technology Department, Tanta University, Tanta, 31111, Egypt
| | - Ahmed M Faheem
- Sunderland Pharmacy School, University of Sunderland, Sunderland, SR1 3SD, UK
| | - Mohamed El-Tanani
- Institute of Cancer Therapeutics, University of Bradford, Bradford, West Yorkshire, BD7 1DP, UK
| | - Paul A McCarron
- School of Pharmacy and Pharmaceutical Sciences, Saad Centre for Pharmacy and Diabetes, Ulster University, Cromore Road, Coleraine, Co., Londonderry, BT52 1SA, UK.
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Najafi E, Ahmadi M, Mohammadi M, Beigmohammadi MT, Heidary Z, Vatanara A, Khalili H. Topical pentoxifylline for pressure ulcer treatment: a randomised, double-blind, placebo-controlled clinical trial. J Wound Care 2018; 27:495-502. [DOI: 10.12968/jowc.2018.27.8.495] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Elham Najafi
- Pharmacist, Department of Clinical Pharmacy, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Motahareh Ahmadi
- Clinical Pharmacist, Department of Clinical Pharmacy, Homozgan University of Medical Sciences, Bandar-Abbas, Iran
| | - Mostafa Mohammadi
- Anesthesiologist, Department of Intensive Care Unit, Imam Khomeini Hospital, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad-Taghi Beigmohammadi
- Anesthesiologist, Department of Intensive Care Unit, Imam Khomeini Hospital, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Zinat Heidary
- Clinical Pharmacist, Department of Clinical Pharmacy, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Alireza Vatanara
- Faculty Member, Department of Pharmaceutical Sciences, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Hossein Khalili
- Clinical Pharmacist, Department of Clinical Pharmacy, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
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Muñoz-Soriano V, Belacortu Y, Sanz FJ, Solana-Manrique C, Dillon L, Suay-Corredera C, Ruiz-Romero M, Corominas M, Paricio N. Cbt modulates Foxo activation by positively regulating insulin signaling in Drosophila embryos. BIOCHIMICA ET BIOPHYSICA ACTA. GENE REGULATORY MECHANISMS 2018; 1861:S1874-9399(18)30034-8. [PMID: 30055320 DOI: 10.1016/j.bbagrm.2018.07.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Revised: 07/10/2018] [Accepted: 07/19/2018] [Indexed: 01/05/2023]
Abstract
In late Drosophila embryos, the epidermis exhibits a dorsal hole as a consequence of germ band retraction. It is sealed during dorsal closure (DC), a morphogenetic process in which the two lateral epidermal layers converge towards the dorsal midline and fuse. We previously demonstrated the involvement of the Cbt transcription factor in Drosophila DC. However its molecular role in the process remained obscure. In this study, we used genomic approaches to identify genes regulated by Cbt as well as its direct targets during late embryogenesis. Our results reveal a complex transcriptional circuit downstream of Cbt and evidence that it is functionally related with the Insulin/insulin-like growth factor signaling pathway. In this context, Cbt may act as a positive regulator of the pathway, leading to the repression of Foxo activity. Our results also suggest that the DC defects observed in cbt embryos could be partially due to Foxo overactivation and that a regulatory feedback loop between Foxo and Cbt may be operating in the DC context.
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Affiliation(s)
- Verónica Muñoz-Soriano
- Departamento de Genética, Facultad CC Biológicas, Universitat de València, 46100 Burjasot, Spain; Estructura de Recerca Interdisciplinar en Biotecnologia i Biomedicina (ERI BIOTECMED), Universitat de València, Dr Moliner 50, 46100 Burjassot, Spain
| | - Yaiza Belacortu
- Departamento de Genética, Facultad CC Biológicas, Universitat de València, 46100 Burjasot, Spain
| | - Francisco José Sanz
- Departamento de Genética, Facultad CC Biológicas, Universitat de València, 46100 Burjasot, Spain; Estructura de Recerca Interdisciplinar en Biotecnologia i Biomedicina (ERI BIOTECMED), Universitat de València, Dr Moliner 50, 46100 Burjassot, Spain
| | - Cristina Solana-Manrique
- Departamento de Genética, Facultad CC Biológicas, Universitat de València, 46100 Burjasot, Spain; Estructura de Recerca Interdisciplinar en Biotecnologia i Biomedicina (ERI BIOTECMED), Universitat de València, Dr Moliner 50, 46100 Burjassot, Spain
| | - Luke Dillon
- Departamento de Genética, Facultad CC Biológicas, Universitat de València, 46100 Burjasot, Spain
| | - Carmen Suay-Corredera
- Departamento de Genética, Facultad CC Biológicas, Universitat de València, 46100 Burjasot, Spain
| | - Marina Ruiz-Romero
- Departament de Genètica, Facultat de Biologia, and Institut de Biomedicina (IBUB) de la Universitat de Barcelona, Barcelona, Spain
| | - Montserrat Corominas
- Departament de Genètica, Facultat de Biologia, and Institut de Biomedicina (IBUB) de la Universitat de Barcelona, Barcelona, Spain
| | - Nuria Paricio
- Departamento de Genética, Facultad CC Biológicas, Universitat de València, 46100 Burjasot, Spain; Estructura de Recerca Interdisciplinar en Biotecnologia i Biomedicina (ERI BIOTECMED), Universitat de València, Dr Moliner 50, 46100 Burjassot, Spain.
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Farokhi M, Mottaghitalab F, Fatahi Y, Khademhosseini A, Kaplan DL. Overview of Silk Fibroin Use in Wound Dressings. Trends Biotechnol 2018; 36:907-922. [PMID: 29764691 DOI: 10.1016/j.tibtech.2018.04.004] [Citation(s) in RCA: 233] [Impact Index Per Article: 38.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 03/11/2018] [Accepted: 04/10/2018] [Indexed: 01/01/2023]
Abstract
Recently, biomimetic wound dressings were introduced as potential replacements for treating skin injuries. Although there are some clinically available skin replacements, the range of wound types and locations necessitates a broader range of options for the clinic. Natural polymeric-based dressings are of central interest in this area due to their outstanding biocompatibility, biodegradability, low toxicity, and non-allergenic nature. Among them, silk fibroin (SF) has exceptional characteristics as a wound dressing. SF-based dressings can also be used as carriers for delivering drugs, growth factors, and bioactive agents to the wound area, while providing appropriate support for complete healing. In this review, we describe recent advances in the development of SF-based wound dressings for skin regeneration.
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Affiliation(s)
- Mehdi Farokhi
- National Cell Bank of Iran, Pasteur Institute of Iran, Tehran, Iran.
| | - Fatemeh Mottaghitalab
- Nanotechnology Research Centre, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Yousef Fatahi
- Department of pharmaceutical nanotechnology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Ali Khademhosseini
- Department of Bioengineering, Department of Chemical and Biomolecular Engineering, Department of Radiology, California NanoSystems Institute, University of California-Los Angeles, Los Angeles, CA, USA
| | - David L Kaplan
- Department of Biomedical Engineering, Tufts University, Medford, MA, USA
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LED phototherapy in full-thickness burns induced by CO 2 laser in rats skin. Lasers Med Sci 2018; 33:1537-1547. [PMID: 29704068 DOI: 10.1007/s10103-018-2515-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Accepted: 04/17/2018] [Indexed: 01/30/2023]
Abstract
Many studies have been conducted on the treatment of burns because they are important in morbidity and mortality. These studies are mainly focused on improving care and quality of life of patients. The aim of this study was evaluate the LED phototherapy effects in rats skin full-thickness burns induced by CO2 laser. The animals were divided in NT group that did not received any treatment and LED group that received LED irradiation at 685 nm, 220 mW, and 4.5 J/cm2 during 40 s by burned area. Biopsies were obtained after 7, 14, and 21 days of treatment and submitted to histological and immunohistochemical analysis. The LED phototherapy shows anti-inflammatory effects, improves angiogenesis, and stimulates the migration and proliferation of fibroblasts. The T CD8+ lymphocytes were more common in burned areas compared to T CD4+ lymphocytes since statistically significant differences were observed in the LED group compared to the NT group after 7 days of treatment. These results showed that LED phototherapy performs positive influence in full-thickness burns repair from the healing process modulated by cellular immune response. The obtained results allowed inferring that burns exhibit a characteristic cell immune response and this cannot be extrapolated to other wounds such as incision and wounds induced by punch, among others.
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Horiguchi H, Loftus TJ, Hawkins RB, Raymond SL, Stortz JA, Hollen MK, Weiss BP, Miller ES, Bihorac A, Larson SD, Mohr AM, Brakenridge SC, Tsujimoto H, Ueno H, Moore FA, Moldawer LL, Efron PA. Innate Immunity in the Persistent Inflammation, Immunosuppression, and Catabolism Syndrome and Its Implications for Therapy. Front Immunol 2018; 9:595. [PMID: 29670613 PMCID: PMC5893931 DOI: 10.3389/fimmu.2018.00595] [Citation(s) in RCA: 99] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Accepted: 03/09/2018] [Indexed: 12/12/2022] Open
Abstract
Clinical and technological advances promoting early hemorrhage control and physiologic resuscitation as well as early diagnosis and optimal treatment of sepsis have significantly decreased in-hospital mortality for many critically ill patient populations. However, a substantial proportion of severe trauma and sepsis survivors will develop protracted organ dysfunction termed chronic critical illness (CCI), defined as ≥14 days requiring intensive care unit (ICU) resources with ongoing organ dysfunction. A subset of CCI patients will develop the persistent inflammation, immunosuppression, and catabolism syndrome (PICS), and these individuals are predisposed to a poor quality of life and indolent death. We propose that CCI and PICS after trauma or sepsis are the result of an inappropriate bone marrow response characterized by the generation of dysfunctional myeloid populations at the expense of lympho- and erythropoiesis. This review describes similarities among CCI/PICS phenotypes in sepsis, cancer, and aging and reviews the role of aberrant myelopoiesis in the pathophysiology of CCI and PICS. In addition, we characterize pathogen recognition, the interface between innate and adaptive immune systems, and therapeutic approaches including immune modulators, gut microbiota support, and nutritional and exercise therapy. Finally, we discuss the future of diagnostic and prognostic approaches guided by machine and deep-learning models trained and validated on big data to identify patients for whom these approaches will yield the greatest benefits. A deeper understanding of the pathophysiology of CCI and PICS and continued investigation into novel therapies harbor the potential to improve the current dismal long-term outcomes for critically ill post-injury and post-infection patients.
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Affiliation(s)
- Hiroyuki Horiguchi
- Department of Surgery, University of Florida College of Medicine, Gainesville, FL, United States.,Department of Surgery, National Defense Medical College, Tokorozawa, Japan
| | - Tyler J Loftus
- Department of Surgery, University of Florida College of Medicine, Gainesville, FL, United States
| | - Russell B Hawkins
- Department of Surgery, University of Florida College of Medicine, Gainesville, FL, United States
| | - Steven L Raymond
- Department of Surgery, University of Florida College of Medicine, Gainesville, FL, United States
| | - Julie A Stortz
- Department of Surgery, University of Florida College of Medicine, Gainesville, FL, United States
| | - McKenzie K Hollen
- Department of Surgery, University of Florida College of Medicine, Gainesville, FL, United States
| | - Brett P Weiss
- Department of Surgery, University of Florida College of Medicine, Gainesville, FL, United States
| | - Elizabeth S Miller
- Department of Surgery, University of Florida College of Medicine, Gainesville, FL, United States
| | - Azra Bihorac
- Department of Medicine, University of Florida College of Medicine, Gainesville, FL, United States
| | - Shawn D Larson
- Department of Surgery, University of Florida College of Medicine, Gainesville, FL, United States
| | - Alicia M Mohr
- Department of Surgery, University of Florida College of Medicine, Gainesville, FL, United States
| | - Scott C Brakenridge
- Department of Surgery, University of Florida College of Medicine, Gainesville, FL, United States
| | - Hironori Tsujimoto
- Department of Surgery, National Defense Medical College, Tokorozawa, Japan
| | - Hideki Ueno
- Department of Surgery, National Defense Medical College, Tokorozawa, Japan
| | - Frederick A Moore
- Department of Surgery, University of Florida College of Medicine, Gainesville, FL, United States
| | - Lyle L Moldawer
- Department of Surgery, University of Florida College of Medicine, Gainesville, FL, United States
| | - Philip A Efron
- Department of Surgery, University of Florida College of Medicine, Gainesville, FL, United States
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Tandon B, Magaz A, Balint R, Blaker JJ, Cartmell SH. Electroactive biomaterials: Vehicles for controlled delivery of therapeutic agents for drug delivery and tissue regeneration. Adv Drug Deliv Rev 2018; 129:148-168. [PMID: 29262296 DOI: 10.1016/j.addr.2017.12.012] [Citation(s) in RCA: 82] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Revised: 11/24/2017] [Accepted: 12/16/2017] [Indexed: 01/09/2023]
Abstract
Electrical stimulation for delivery of biochemical agents such as genes, proteins and RNA molecules amongst others, holds great potential for controlled therapeutic delivery and in promoting tissue regeneration. Electroactive biomaterials have the capability of delivering these agents in a localized, controlled, responsive and efficient manner. These systems have also been combined for the delivery of both physical and biochemical cues and can be programmed to achieve enhanced effects on healing by establishing control over the microenvironment. This review focuses on current state-of-the-art research in electroactive-based materials towards the delivery of drugs and other therapeutic signalling agents for wound care treatment. Future directions and current challenges for developing effective electroactive approach based therapies for wound care are discussed.
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Abdelkader DH, Osman MA, El-Gizawy SA, Hawthorne SJ, Faheem AM, McCarron PA. Effect of poly(ethylene glycol) on insulin stability and cutaneous cell proliferation in vitro following cytoplasmic delivery of insulin-loaded nanoparticulate carriers – A potential topical wound management approach. Eur J Pharm Sci 2018; 114:372-384. [DOI: 10.1016/j.ejps.2017.12.018] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Revised: 12/19/2017] [Accepted: 12/21/2017] [Indexed: 12/14/2022]
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Suire CN, Nainar S, Fazio M, Kreutzer AG, Paymozd-Yazdi T, Topper CL, Thompson CR, Leissring MA. Peptidic inhibitors of insulin-degrading enzyme with potential for dermatological applications discovered via phage display. PLoS One 2018; 13:e0193101. [PMID: 29447281 PMCID: PMC5814047 DOI: 10.1371/journal.pone.0193101] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Accepted: 02/05/2018] [Indexed: 12/16/2022] Open
Abstract
Insulin-degrading enzyme (IDE) is an atypical zinc-metalloendopeptidase that hydrolyzes insulin and other intermediate-sized peptide hormones, many of which are implicated in skin health and wound healing. Pharmacological inhibitors of IDE administered internally have been shown to slow the breakdown of insulin and thereby potentiate insulin action. Given the importance of insulin and other IDE substrates for a variety of dermatological processes, pharmacological inhibitors of IDE suitable for topical applications would be expected to hold significant therapeutic and cosmetic potential. Existing IDE inhibitors, however, are prohibitively expensive, difficult to synthesize and of undetermined toxicity. Here we used phage display to discover novel peptidic inhibitors of IDE, which were subsequently characterized in vitro and in cell culture assays. Among several peptide sequences tested, a cyclic dodecapeptide dubbed P12-3A was found to potently inhibit the degradation of insulin (Ki = 2.5 ± 0.31 μM) and other substrates by IDE, while also being resistant to degradation, stable in biological milieu, and highly selective for IDE. In cell culture, P12-3A was shown to potentiate several insulin-induced processes, including the transcription, translation and secretion of alpha-1 type I collagen in primary murine skin fibroblasts, and the migration of keratinocytes in a scratch wound migration assay. By virtue of its potency, stability, specificity for IDE, low cost of synthesis, and demonstrated ability to potentiate insulin-induced processes involved in wound healing and skin health, P12-3A holds significant therapeutic and cosmetic potential for topical applications.
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Affiliation(s)
- Caitlin N. Suire
- Institute for Memory Impairments and Neurological Disorders (UCI MIND), University of California Irvine, Irvine, California, United States of America
- Department of Neurobiology and Behavior, University of California Irvine, Irvine, California, United States of America
| | - Sarah Nainar
- Department of Pharmaceutical Sciences, University of California Irvine, Irvine, California, United States of America
| | - Michael Fazio
- Department of Pharmaceutical Sciences, University of California Irvine, Irvine, California, United States of America
| | - Adam G. Kreutzer
- Department of Chemistry, University of California Irvine, Irvine, California, United States of America
| | - Tara Paymozd-Yazdi
- Institute for Memory Impairments and Neurological Disorders (UCI MIND), University of California Irvine, Irvine, California, United States of America
| | - Caitlyn L. Topper
- Institute for Memory Impairments and Neurological Disorders (UCI MIND), University of California Irvine, Irvine, California, United States of America
| | - Caroline R. Thompson
- Institute for Memory Impairments and Neurological Disorders (UCI MIND), University of California Irvine, Irvine, California, United States of America
| | - Malcolm A. Leissring
- Institute for Memory Impairments and Neurological Disorders (UCI MIND), University of California Irvine, Irvine, California, United States of America
- * E-mail:
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Offodile AC, Chou HY, Lin JAJ, Loh CYY, Chang KP, Aycart MA, Kao HK. Hyperglycemia and risk of adverse outcomes following microvascular reconstruction of oncologic head and neck defects. Oral Oncol 2018; 79:15-19. [PMID: 29598945 DOI: 10.1016/j.oraloncology.2018.02.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Revised: 02/04/2018] [Accepted: 02/10/2018] [Indexed: 12/17/2022]
Abstract
INTRODUCTION Our aim is to examine the correlation between perioperative hyperglycemia and post-operative outcomes following microvascular reconstruction of head and neck defects. PATIENTS AND METHODS Retrospective review of a prospectively collected database of 350 consecutive patients who underwent microvascular reconstruction of malignant head and neck defects over a 2 year period. The relationship between perioperative hyperglycemia (≥ 180 mg/dL) and the incidence of the following complications was evaluated: flap loss, flap-related complications and surgical site infections (SSI). Sub-group analysis based on timing of hyperglycemia was also performed. RESULTS We identified 313 patients (89.4%) in the normoglycemic group and 37 patients (10.6%) in the hyperglycemic group. Baseline demographics, tumor stage, operative variable were comparable. There were no significant differences in flap-related complications and overall mortality. SSI were significantly higher in the hyperglycemic cohort (48% vs. 28%, p = 0.01). On multivariate analysis, hyperglycemia [OR 2.07; 95% CI, 1.87-4.89], perioperative insulin administration [OR 4.805; 95% CI, 2.18-10.60], prolonged operative time [OR 1.003; 95% CI, 1.002-1.025] and higher Charlson co-morbidity indices [II: OR 2.286 & III: OR 2.284] were independent predictors of SSI. On sub-group analysis, only patients with early (POD 1) post-operative hyperglycemia had a significant OR for SSI (OR 1.88; 95% CI, 1.07-3.29). CONCLUSION Our findings suggest that perioperative hyperglycemia, specifically during the first 24 h post-operatively, is associated with SSI in microvascular head and neck reconstruction. This association highlights the need for strict screening of head and neck patients for hyperglycemia especially in the immediate post-operative period.
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Affiliation(s)
- Anaeze C Offodile
- Department of Plastic and Reconstructive Surgery, MD Anderson Cancer Center, Houston, TX 77030, United States
| | - Hsuan-Yu Chou
- Department of Plastic and Reconstructive Surgery, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Jennifer An-Jou Lin
- Department of Plastic and Reconstructive Surgery, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Charles Yuen Yung Loh
- Department of Plastic and Reconstructive Surgery, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Kai-Ping Chang
- Department of Otolaryngology-Head & Neck Surgery, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Mario A Aycart
- Department of Surgery, Brigham and Women's Hospital, 75 Francis Street, Boston, MA 02115, United States
| | - Huang-Kai Kao
- Department of Plastic and Reconstructive Surgery, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan, Taiwan.
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Martínez-Jiménez MA, Valadez-Castillo FJ, Aguilar-García J, Ramírez-GarciaLuna JL, Gaitán-Gaona FI, Pierdant-Perez M, Valdes-Rodríguez R, Sánchez-Aguilar JM. Effects of Local Use of Insulin on Wound Healing in Non-diabetic Patients. Plast Surg (Oakv) 2017; 26:75-79. [PMID: 29845043 DOI: 10.1177/2292550317740688] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Background Clinical trials have shown the positive effects of local insulin therapy in the formation of new vessels and fibrosis in acute and chronic diabetic wounds without major adverse effects. Objective The aim of this study was to investigate the effects of local insulin use on wound healing in non-diabetic patients. Methods A randomized, split-plot, double-blind, placebo-controlled trial was conducted. Ten non-diabetic patients with full-thickness acute wounds were recruited (5 due to trauma, 3 to burns, and 2 to pressure). All wounds received standard bedside treatment. Each wound was divided into 2 zones. One side received a standard care plus insulin, while the other received standard care plus injection of saline solution. A biopsy specimen was taken from both sites on days 0 and 14. The amount of blood vessel growth and the percentage of fibrosis were evaluated. Results A significant difference in the number of new vessels was observed on the insulin-treated site (70.6 [29.21]) compared to saline only (26.5 [34.3]; P < .04). The percentage of fibrosis (insulin 34.7 [28.02] vs saline 27.8 [29.9]) showed no significant difference. No adverse events related to the study occurred. The clinical implications of this study are considerable in terms of the formation of blood vessels but not fibrosis. Conclusion We suggest that local insulin administration is a safe therapeutic option for angiogenesis in wounds of non-diabetic patients.
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Affiliation(s)
- Mario Aurelio Martínez-Jiménez
- Division of Plastic and Reconstructive Surgery and Burn Center, Department of Surgery, Hospital Central "Dr Ignacio Morones Prieto", San Luis Potosí, México
| | | | - Jorge Aguilar-García
- Division of Plastic and Reconstructive Surgery and Burn Center, Department of Surgery, Hospital Central "Dr Ignacio Morones Prieto", San Luis Potosí, México
| | | | - Francisco Israel Gaitán-Gaona
- Division of Plastic and Reconstructive Surgery and Burn Center, Department of Surgery, Hospital Central "Dr Ignacio Morones Prieto", San Luis Potosí, México
| | - Mauricio Pierdant-Perez
- Department of Clinic Epidemiology, Facultad de Medicina, Universidad Autónoma de San Luis Potosí, San Luis Potosí, México
| | | | - Jesús Martín Sánchez-Aguilar
- Department of Clinic Epidemiology, Facultad de Medicina, Universidad Autónoma de San Luis Potosí, San Luis Potosí, México
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