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Duan W, Zhao J, Gao Y, Xu K, Huang S, Zeng L, Shen JW, Zheng Y, Wu J. Porous silicon-based sensing and delivery platforms for wound management applications. J Control Release 2024; 371:530-554. [PMID: 38857787 DOI: 10.1016/j.jconrel.2024.06.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Revised: 05/28/2024] [Accepted: 06/05/2024] [Indexed: 06/12/2024]
Abstract
Wound management remains a great challenge for clinicians due to the complex physiological process of wound healing. Porous silicon (PSi) with controlled pore morphology, abundant surface chemistry, unique photonic properties, good biocompatibility, easy biodegradation and potential bioactivity represent an exciting class of materials for various biomedical applications. In this review, we focus on the recent progress of PSi in the design of advanced sensing and delivery systems for wound management applications. Firstly, we comprehensively introduce the common type, normal healing process, delaying factors and therapeutic drugs of wound healing. Subsequently, the typical fabrication, functionalization and key characteristics of PSi have been summarized because they provide the basis for further use as biosensing and delivery materials in wound management. Depending on these properties, the rise of PSi materials is evidenced by the examples in literature in recent years, which has emphasized the robust potential of PSi for wound monitoring, treatment and theranostics. Finally, challenges and opportunities for the future development of PSi-based sensors and delivery systems for wound management applications are proposed and summarized. We hope that this review will help readers to better understand current achievements and future prospects on PSi-based sensing and delivery systems for advanced wound management.
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Affiliation(s)
- Wei Duan
- School of Pharmacy, Hangzhou Normal University, Hangzhou 311121, PR China; Lab of Nanomedicine and Omic-based Diagnostics, Institute of Analytical Chemistry, Department of Chemistry, Zhejiang University, Hangzhou 310058, PR China; Key Laboratory of Elemene Class Anti-Cancer Chinese Medicines, Engineering Laboratory of Development and Application of Traditional Chinese Medicines, Collaborative Innovation Center of Traditional Chinese Medicines of Zhejiang Province, Hangzhou Normal University, Hangzhou 311121, PR China
| | - Jingwen Zhao
- Lab of Nanomedicine and Omic-based Diagnostics, Institute of Analytical Chemistry, Department of Chemistry, Zhejiang University, Hangzhou 310058, PR China
| | - Yue Gao
- School of Pharmacy, Hangzhou Normal University, Hangzhou 311121, PR China
| | - Keying Xu
- School of Pharmacy, Hangzhou Normal University, Hangzhou 311121, PR China
| | - Sheng Huang
- School of Pharmacy, Hangzhou Normal University, Hangzhou 311121, PR China
| | - Longhuan Zeng
- Department of Geriatric Medicine, Affiliated Hangzhou First People's Hospital, School of Medicine, Westlake University, Hangzhou 310006, PR China
| | - Jia-Wei Shen
- School of Pharmacy, Hangzhou Normal University, Hangzhou 311121, PR China; Key Laboratory of Elemene Class Anti-Cancer Chinese Medicines, Engineering Laboratory of Development and Application of Traditional Chinese Medicines, Collaborative Innovation Center of Traditional Chinese Medicines of Zhejiang Province, Hangzhou Normal University, Hangzhou 311121, PR China.
| | - Yongke Zheng
- Department of Geriatric Medicine, Affiliated Hangzhou First People's Hospital, School of Medicine, Westlake University, Hangzhou 310006, PR China.
| | - Jianmin Wu
- Lab of Nanomedicine and Omic-based Diagnostics, Institute of Analytical Chemistry, Department of Chemistry, Zhejiang University, Hangzhou 310058, PR China.
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Ali MM, Al-Mokaddem AK, Abdel-Sattar E, El-Shiekh RA, Farag MM, Aljuaydi SH, Shaheed IB. Enhanced wound healing potential of arabincoside B isolated from Caralluma Arabica in rat model; a possible dressing in veterinary practice. BMC Vet Res 2024; 20:282. [PMID: 38951783 PMCID: PMC11218188 DOI: 10.1186/s12917-024-04128-2] [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: 03/27/2024] [Accepted: 06/10/2024] [Indexed: 07/03/2024] Open
Abstract
BACKGROUND Wound management is a critical procedure in veterinary practice. A wound is an injury that requires the body's cells' alignment to break down due to external assault, such as trauma, burns, accidents, and diseases. Re-epithelization, extracellular matrix deposition, especially collagen, inflammatory cell infiltration, and development of new blood capillaries are the four features that are used to evaluate the healing process. Using a natural extract for wound management is preferred to avoid the side effects of synthetic drugs. The current study aimed to assess the effect of major pregnane glycoside arabincoside B (AR-B) isolated from Caralluma arabica (C. arabica) for the wound healing process. METHOD AR-B was loaded on a gel for wound application. Rats were randomly distributed into six groups: normal, positive control (PC), MEBO®, AR-B 0.5%, AR-B 1%, and AR-B 1.5%, to be 6 animals in each group. Wounds were initiated under anesthesia with a 1 cm diameter tissue needle, and treatments were applied daily for 14 days. The collected samples were tested for SOD, NO, and MDA. Gene expression of VEGF and Caspase-3. Histopathological evaluation was performed at two-time intervals (7 and 14 days), and immunohistochemistry was done to evaluate α -SMA, TGF-β, and TNF-α. RESULT It was found that AR-B treatment enhanced the wound healing process. AR-B treated groups showed reduced MDA and NO in tissue, and SOD activity was increased. Re-epithelization and extracellular matrix deposition were significantly improved, which was confirmed by the increase in TGF-β and α -SMA as well as increased collagen deposition. TNF-α was reduced, which indicated the subsiding of inflammation. VEGF and Caspase-3 expression were reduced. CONCLUSION Our findings confirmed the efficiency of AR-B in enhancing the process of wound healing and its potential use as a topical wound dressing in veterinary practice.
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Affiliation(s)
- Mawada Mohamed Ali
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
| | | | - Essam Abdel-Sattar
- Department of Pharmacognosy, Faculty of Pharmacy, Cairo University, Cairo, 11562, Egypt
| | - Riham A El-Shiekh
- Department of Pharmacognosy, Faculty of Pharmacy, Cairo University, Cairo, 11562, Egypt
| | - Michael M Farag
- Department of Pharmaceutics & Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, 11562, Egypt
| | - Samira H Aljuaydi
- Department of Biochemistry and Molecular Biology, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
| | - Iman B Shaheed
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
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Pathak D, Mazumder A. A critical overview of challenging roles of medicinal plants in improvement of wound healing technology. Daru 2024; 32:379-419. [PMID: 38225520 PMCID: PMC11087437 DOI: 10.1007/s40199-023-00502-x] [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: 02/01/2023] [Accepted: 12/25/2023] [Indexed: 01/17/2024] Open
Abstract
PURPOSE Chronic diseases often hinder the natural healing process, making wound infections a prevalent clinical concern. In severe cases, complications can arise, potentially leading to fatal outcomes. While allopathic treatments offer numerous options for wound repair and management, the enduring popularity of herbal medications may be attributed to their perceived minimal side effects. Hence, this review aims to investigate the potential of herbal remedies in efficiently treating wounds, presenting a promising alternative for consideration. METHODS A literature search was done including research, reviews, systematic literature review, meta-analysis, and clinical trials considered. Search engines such as Pubmed, Google Scholar, and Scopus were used while retrieving data. Keywords like Wound healing 'Wound healing and herbal combinations', 'Herbal wound dressing', Nanotechnology and Wound dressing were used. RESULT This review provides valuable insights into the role of natural products and technology-based formulations in the treatment of wound infections. It evaluates the use of herbal remedies as an effective approach. Various active principles from herbs, categorized as flavonoids, glycosides, saponins, and phenolic compounds, have shown effectiveness in promoting wound closure. A multitude of herbal remedies have demonstrated significant efficacy in wound management, offering an additional avenue for care. The review encompasses a total of 72 studies, involving 127 distinct herbs (excluding any common herbs shared between studies), primarily belonging to the families Asteraceae, Fabaceae, and Apiaceae. In research, rat models were predominantly utilized to assess wound healing activities. Furthermore, advancements in herbal-based formulations using nanotechnology-based wound dressing materials, such as nanofibers, nanoemulsions, nanofiber mats, polymeric fibers, and hydrogel-based microneedles, are underway. These innovations aim to enhance targeted drug delivery and expedite recovery. Several clinical-based experimental studies have already been documented, evaluating the efficacy of various natural products for wound care and management. This signifies a promising direction in the field of wound treatment. CONCLUSION In recent years, scientists have increasingly utilized evidence-based medicine and advanced scientific techniques to validate the efficacy of herbal medicines and delve into the underlying mechanisms of their actions. However, there remains a critical need for further research to thoroughly understand how isolated chemicals extracted from herbs contribute to the healing process of intricate wounds, which may have life-threatening consequences. This ongoing research endeavor holds great promise in not only advancing our understanding but also in the development of innovative formulations that expedite the recovery process.
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Affiliation(s)
- Deepika Pathak
- Noida Institute of Engineering and Technology (Pharmacy Institute), 19 Knowledge Park-II, Institutional Area, Greater Noida, UP, 201306, India.
| | - Avijit Mazumder
- Noida Institute of Engineering and Technology (Pharmacy Institute), 19 Knowledge Park-II, Institutional Area, Greater Noida, UP, 201306, India
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Putra A, Plowgian C. Uncommon dermatologic manifestation (paronychia) in a cat with diabetes mellitus. Top Companion Anim Med 2024; 60:100874. [PMID: 38616020 DOI: 10.1016/j.tcam.2024.100874] [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: 06/13/2023] [Revised: 03/15/2024] [Accepted: 04/11/2024] [Indexed: 04/16/2024]
Abstract
A 3.5-year-old male intact domestic short hair cat presented for a chronic wound and crusts over the claw and claw folds over several months. The cat was diagnosed with diabetes mellitus based on the presence of persistent hyperglycemia, glucosuria, and compatible clinical signs which consist of polyuria, polydipsia, polyphagia, and weight loss. Glipizide (Glucotrol XL, Pfizer, Indonesia) 2.5 mg orally twice daily was prescribed. By the seventeenth day, the patient's claws and skin around the paw had normalized and the abnormal claw sloughed off, revealing a normal claw underneath. Blood glucose, urinalysis and serum fructosamine were also normalized by the thirtieth day. The patient underwent diabetic remission, and the skin and claw lesions have remained in remission and not recurred since the treatment of the diabetes mellitus. This is the first report of a diabetic cat with dermatologic changes to the skin and claw regions. As the diabetes mellitus went into clinical remission, so too did the dermatologic manifestations, even without any specific dermatologic treatment.
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Hosseinzade S, Nourani H, Kazemi Mehrjerdi H, Lotfalizadeh N, Borji H. The effect of hydatid cyst protoscolex somatic antigens on full-thickness skin wound healing in mouse. Skin Res Technol 2024; 30:e13685. [PMID: 38558086 PMCID: PMC10982679 DOI: 10.1111/srt.13685] [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: 01/13/2024] [Accepted: 03/18/2024] [Indexed: 04/04/2024]
Abstract
BACKGROUND Wound healing has evolved in recent years, resulting in diverse therapeutic options. OBJECTIVE This study evaluated the effects of the somatic antigen of the hydatid cyst protoscolex on wound healing in mice with full-thickness skin wounds. METHODS Fifty-four adult mice, weighing 25 ± 5 g and approximately 60 days old, were divided into three groups (A, B, and C), each further divided into three subgroups. Subgroups A1, A2, and A3 were assigned negative controls. B1, B2, and B3 received hydatid cyst somatic antigen tests at 10 µg/SC, whereas C1, C2, and C3 received somatic antigen tests at 20 µg/SC. Under general anesthesia, a wound biopsy puncture of 9.8 mm in diameter was performed on the mice's back and spine. In the experimental group, antigen and alum adjuvant were administered subcutaneously around the wound, while the control group received Phosphate-Buffered Saline (PBS). Using digital images, a geometric assessment was conducted on days 0, 1, 3, 6, 9, 12, 15, 18, and 21 post-wounding. The obtained images were analyzed by Image J software and after analyzing the data by SPSS software. RESULTS A significant difference in terms of epithelization was observed in the antigen treatment group with a dose of 20 µg on days 3 and 6 (P < 0.05). Furthermore, the 20 µg antigen group was significantly higher than the 10 µg antigen group in terms of this factor on day 3 (P < 0.05). Skin samples were taken from all wounds on days 3, 10 and 21 for microscopic evaluation. Regarding epithelization, on day 10, a significant difference was observed in the treatment group with a concentration of 10 µg with the control group and the treatment group with a concentration of 20 µg (P < 0.05). CONCLUSION Based on the results of the present study, it can be concluded that somatic antigens of protoscolex hydatid cyst are dose-dependent and antigens with a dose of 20 µg by subcutaneous injection accelerate wound healing and epithelialization.
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Affiliation(s)
- Sajede Hosseinzade
- Department of PathobiologyFaculty of Veterinary MedicineFerdowsi University of MashhadMashhadIran
| | - Hossein Nourani
- Department of PathobiologyFaculty of Veterinary MedicineFerdowsi University of MashhadMashhadIran
| | - Hossein Kazemi Mehrjerdi
- Department of Clinical SciencesFaculty of Veterinary MedicineFerdowsi University of MashhadMashhadIran
| | - Narges Lotfalizadeh
- Department of PathobiologyFaculty of Veterinary MedicineFerdowsi University of MashhadMashhadIran
| | - Hassan Borji
- Department of PathobiologyFaculty of Veterinary MedicineFerdowsi University of MashhadMashhadIran
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Gouletsou PG, Zacharopoulou T, Skampardonis V, Georgiou SG, Doukas D, Galatos AD, Flouraki E, Dermisiadou E, Margeti C, Barbagianni M, Sideri A, Tsioli V. First-Intention Incisional Wound Healing in Dogs and Cats: A Controlled Trial of Dermapliq and Manuka Honey. Vet Sci 2024; 11:64. [PMID: 38393082 PMCID: PMC10892332 DOI: 10.3390/vetsci11020064] [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: 12/01/2023] [Revised: 01/14/2024] [Accepted: 01/25/2024] [Indexed: 02/25/2024] Open
Abstract
This study aimed to compare incisional wound healing in cats and dogs after the topical application of Μanuka honey and a new medical device, Dermapliq. Comparisons were made between each treatment and control, between the two treatments, and between dogs and cats. Twelve cats and twelve dogs were included in this study, and the impact of the two substances was examined through cosmetic, clinical, ultrasonographical, and histological evaluation. The use of Dermapliq in first-intention wound healing achieved a significantly better cosmetic evaluation score and better total clinical score at days 20-41, compared to the control, in both dogs and cats. The ultrasonographically estimated wound area was smaller with Dermapliq compared to the control. Wounds treated with Dermapliq showed histologically less inflammation compared to the control. The use of Manuka honey did not show a significantly better cosmetic score compared to the control. Skin thickening was significantly higher after using Manuka honey compared to the control and so was the total clinical score. However, the median wound area, as was evaluated ultrasonographically, was significantly smaller when wounds were treated with Manuka honey, the difference being more apparent in dogs. Dermapliq was proven to be a better choice in achieving favorable wound healing than Manuka honey in dogs and cats in first-intention healing. In our study, cats had a statistically better cosmetic score and less skin thickening and scar width compared to dogs. Histologically, cats showed significantly less edema, higher inflammation and angiogenesis scores, and lower fibroblast and epidermis thickening scores when compared to dogs.
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Affiliation(s)
- Pagona G. Gouletsou
- Clinic of Obstetrics and Reproduction, Faculty of Veterinary Science, School of Health Sciences, University of Thessaly, Trikalon 224, 43100 Karditsa, Greece
| | - Theodora Zacharopoulou
- Clinic of Surgery, Faculty of Veterinary Science, School of Health Sciences, University of Thessaly, Trikalon 224, 43100 Karditsa, Greece; (T.Z.); (S.G.G.); (A.D.G.); (E.F.); (E.D.); (C.M.); (M.B.); (A.S.); (V.T.)
| | - Vassilis Skampardonis
- Laboratory of Epidemiology, Biostatistics and Animal Health Economics, Faculty of Veterinary Science, School of Health Sciences, University of Thessaly, Trikalon 224, 43100 Karditsa, Greece;
| | - Stefanos G. Georgiou
- Clinic of Surgery, Faculty of Veterinary Science, School of Health Sciences, University of Thessaly, Trikalon 224, 43100 Karditsa, Greece; (T.Z.); (S.G.G.); (A.D.G.); (E.F.); (E.D.); (C.M.); (M.B.); (A.S.); (V.T.)
| | - Dimitrios Doukas
- Laboratory of Pathology, Faculty of Veterinary Science, School of Health Sciences, University of Thessaly, Trikalon 224, 43100 Karditsa, Greece;
| | - Apostolos D. Galatos
- Clinic of Surgery, Faculty of Veterinary Science, School of Health Sciences, University of Thessaly, Trikalon 224, 43100 Karditsa, Greece; (T.Z.); (S.G.G.); (A.D.G.); (E.F.); (E.D.); (C.M.); (M.B.); (A.S.); (V.T.)
| | - Eugenia Flouraki
- Clinic of Surgery, Faculty of Veterinary Science, School of Health Sciences, University of Thessaly, Trikalon 224, 43100 Karditsa, Greece; (T.Z.); (S.G.G.); (A.D.G.); (E.F.); (E.D.); (C.M.); (M.B.); (A.S.); (V.T.)
| | - Eleftheria Dermisiadou
- Clinic of Surgery, Faculty of Veterinary Science, School of Health Sciences, University of Thessaly, Trikalon 224, 43100 Karditsa, Greece; (T.Z.); (S.G.G.); (A.D.G.); (E.F.); (E.D.); (C.M.); (M.B.); (A.S.); (V.T.)
| | - Chryssoula Margeti
- Clinic of Surgery, Faculty of Veterinary Science, School of Health Sciences, University of Thessaly, Trikalon 224, 43100 Karditsa, Greece; (T.Z.); (S.G.G.); (A.D.G.); (E.F.); (E.D.); (C.M.); (M.B.); (A.S.); (V.T.)
| | - Mariana Barbagianni
- Clinic of Surgery, Faculty of Veterinary Science, School of Health Sciences, University of Thessaly, Trikalon 224, 43100 Karditsa, Greece; (T.Z.); (S.G.G.); (A.D.G.); (E.F.); (E.D.); (C.M.); (M.B.); (A.S.); (V.T.)
| | - Aikaterini Sideri
- Clinic of Surgery, Faculty of Veterinary Science, School of Health Sciences, University of Thessaly, Trikalon 224, 43100 Karditsa, Greece; (T.Z.); (S.G.G.); (A.D.G.); (E.F.); (E.D.); (C.M.); (M.B.); (A.S.); (V.T.)
| | - Vassiliki Tsioli
- Clinic of Surgery, Faculty of Veterinary Science, School of Health Sciences, University of Thessaly, Trikalon 224, 43100 Karditsa, Greece; (T.Z.); (S.G.G.); (A.D.G.); (E.F.); (E.D.); (C.M.); (M.B.); (A.S.); (V.T.)
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Zheremyan EA, Ustiugova AS, Karamushka NM, Uvarova AN, Stasevich EM, Bogolyubova AV, Kuprash DV, Korneev KV. Breg-Mediated Immunoregulation in the Skin. Int J Mol Sci 2024; 25:583. [PMID: 38203754 PMCID: PMC10778726 DOI: 10.3390/ijms25010583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 12/19/2023] [Accepted: 12/23/2023] [Indexed: 01/12/2024] Open
Abstract
Wound healing is a complex process involving a coordinated series of events aimed at restoring tissue integrity and function. Regulatory B cells (Bregs) are a subset of B lymphocytes that play an essential role in fine-tuning immune responses and maintaining immune homeostasis. Recent studies have suggested that Bregs are important players in cutaneous immunity. This review summarizes the current understanding of the role of Bregs in skin immunity in health and pathology, such as diabetes, psoriasis, systemic sclerosis, cutaneous lupus erythematosus, cutaneous hypersensitivity, pemphigus, and dermatomyositis. We discuss the mechanisms by which Bregs maintain tissue homeostasis in the wound microenvironment through the promotion of angiogenesis, suppression of effector cells, and induction of regulatory immune cells. We also mention the potential clinical applications of Bregs in promoting wound healing, such as the use of adoptive Breg transfer.
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Affiliation(s)
- Elina A. Zheremyan
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia
| | - Alina S. Ustiugova
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia
| | - Nina M. Karamushka
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia
- Faculty of Biology, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - Aksinya N. Uvarova
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia
| | - Ekaterina M. Stasevich
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia
| | | | - Dmitry V. Kuprash
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia
- Faculty of Biology, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - Kirill V. Korneev
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia
- National Research Center for Hematology, 125167 Moscow, Russia
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Berger A. Occurrence and Characteristics of Cut Injuries in Hedgehogs in Germany: A Collection of Individual Cases. Animals (Basel) 2023; 14:57. [PMID: 38200788 PMCID: PMC10778023 DOI: 10.3390/ani14010057] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 12/13/2023] [Accepted: 12/19/2023] [Indexed: 01/12/2024] Open
Abstract
The number of European hedgehogs (Erinaceus europaeus) is in long-term decline across Europe. Recently, an additional threat to hedgehogs' lives has been cutting injuries caused by garden care equipment, but to date, there have been no reliable data on their spatial and temporal occurrence as well as characteristics such as mortality rate. Usually, found injured hedgehogs are admitted to care centres. In this study, data on hedgehogs with cutting injuries were collected from care centres throughout Germany. Over a period of 16 months, data on a total of 370 hedgehogs with cut injuries were reported by 71 care centres. At least 60% of these hedgehogs were found more than 12 h after the accident and at least 47% did not survive as a result of the injury. The comparatively high mortality rate coupled with a possible high number of unreported cases of hedgehogs with laceration injuries show that these accidents pose an additional, serious danger to hedgehogs, both impacting the welfare of individual animals and having a broader effect on the conservation potential of this species. Moreover, the data collected objectify the current discussion on the need for possible technical or political solutions to prevent such injuries.
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Affiliation(s)
- Anne Berger
- Leibniz Institute for Zoo and Wildlife Research, Alfred-Kowalke-Straße 17, 10315 Berlin, Germany
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Tang KJ, Zhao Y, Tao X, Li J, Chen Y, Holland DC, Jin TY, Wang AY, Xiang L. Catecholamine Derivatives: Natural Occurrence, Structural Diversity, and Biological Activity. JOURNAL OF NATURAL PRODUCTS 2023; 86:2592-2619. [PMID: 37856864 DOI: 10.1021/acs.jnatprod.3c00465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2023]
Abstract
Catecholamines (CAs) are aromatic amines containing a 3,4-dihydroxyphenyl nucleus and an amine side chain. Representative CAs included the endogenous neurotransmitters epinephrine, norepinephrine, and dopamine. CAs and their derivatives are good resources for the development of sympathomimetic or central nervous system drugs, while they also provide ligands important for G-protein coupled receptor (GPCR) research. CAs are of broad interest in the fields of chemical, biological, medical, and material sciences due to their high adhesive capacities, chemical reactivities, metal-chelating abilities, redox activities, excellent biocompatibilities, and ease of degradability. Herein, we summarize CAs derivatives isolated and identified from microorganisms, plants, insects, and marine invertebrates in recent decades, alongside their wide range of reported biological activities. The aim of this review is to provide an overview of the structural and biological diversities of CAs, the regularity of their natural occurrences, and insights toward future research and development pertinent to this important class of naturally occurring compounds.
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Affiliation(s)
- Kai-Jun Tang
- Key Laboratory of Chemical Biology (Ministry of Education), Institute of Pharmacognosy, School of Pharmaceutical Sciences, Shandong University, Jinan, Shandong 250012, People's Republic of China
| | - Yu Zhao
- Key Laboratory of Chemical Biology (Ministry of Education), Institute of Pharmacognosy, School of Pharmaceutical Sciences, Shandong University, Jinan, Shandong 250012, People's Republic of China
| | - Xu Tao
- Key Laboratory of Chemical Biology (Ministry of Education), Institute of Pharmacognosy, School of Pharmaceutical Sciences, Shandong University, Jinan, Shandong 250012, People's Republic of China
| | - Jing Li
- Key Laboratory of Chemical Biology (Ministry of Education), Institute of Pharmacognosy, School of Pharmaceutical Sciences, Shandong University, Jinan, Shandong 250012, People's Republic of China
| | - Yu Chen
- Key Laboratory of Chemical Biology (Ministry of Education), Institute of Pharmacognosy, School of Pharmaceutical Sciences, Shandong University, Jinan, Shandong 250012, People's Republic of China
| | - Darren C Holland
- Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, California 92037, United States of America
| | - Tian-Yun Jin
- Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, California 92037, United States of America
| | - Ao-Yun Wang
- Key Laboratory of Chemical Biology (Ministry of Education), Institute of Pharmacognosy, School of Pharmaceutical Sciences, Shandong University, Jinan, Shandong 250012, People's Republic of China
| | - Lan Xiang
- Key Laboratory of Chemical Biology (Ministry of Education), Institute of Pharmacognosy, School of Pharmaceutical Sciences, Shandong University, Jinan, Shandong 250012, People's Republic of China
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Kourouklis AP, Kaemmel J, Wu X, Baños M, Chanfon A, de Brot S, Ferrari A, Cesarovic N, Falk V, Mazza E. Transdermal wires for improved integration in vivo. BIOMATERIALS ADVANCES 2023; 153:213568. [PMID: 37591177 DOI: 10.1016/j.bioadv.2023.213568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 07/13/2023] [Accepted: 07/23/2023] [Indexed: 08/19/2023]
Abstract
Alternative engineering approaches have led the design of implants with controlled physical features to minimize adverse effects in biological tissues. Similar efforts have focused on optimizing the design features of percutaneous VAD drivelines with the aim to prevent infection, omitting however a thorough look on the implant-skin interactions that govern local tissue reactions. Here, we utilized an integrated approach for the biophysical modification of transdermal implants and their evaluation by chronic sheep implantation in comparison to the standard of care VAD drivelines. We developed a novel method for the transfer of breath topographical features on thin wires with modular size. We examined the impact of implant's diameter, surface topography, and chemistry on macroscopic, histological, and physical markers of inflammation, fibrosis, and mechanical adhesion. All implants demonstrated infection-free performance. The fibrotic response was enhanced by the increasing diameter of implants but not influenced by their surface properties. The implants of small diameter promoted mild inflammatory responses with improved mechanical adhesion and restricted epidermal downgrowth, in both silicone and polyurethane coated transdermal wires. On the contrary, the VAD drivelines with larger diameter triggered severe inflammatory reactions with frequent epidermal downgrowth. We validated these effects by quantifying the infiltration of macrophages and the level of vascularization in the fibrotic zone, highlighting the critical role of size reduction for the benign integration of transdermal implants with skin. This insight on how the biophysical properties of implants impact local tissue reactions could enable new solutions on the transdermal transmission of power, signal, and mass in a broad range of medical devices.
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Affiliation(s)
- Andreas P Kourouklis
- Department of Mechanical and Process Engineering, Institute for Mechanical Systems, ETH Zurich, 8092 Zurich, Switzerland
| | - Julius Kaemmel
- Department of Cardiothoracic and Vascular Surgery, German Heart Center Berlin, 13353 Berlin, Germany
| | - Xi Wu
- Department of Mechanical and Process Engineering, Institute for Mechanical Systems, ETH Zurich, 8092 Zurich, Switzerland
| | - Miguel Baños
- Department of Mechanical and Process Engineering, Institute for Mechanical Systems, ETH Zurich, 8092 Zurich, Switzerland
| | - Astrid Chanfon
- COMPATH, Institute of Animal Pathology, University of Bern, 3012 Bern, Switzerland
| | - Simone de Brot
- COMPATH, Institute of Animal Pathology, University of Bern, 3012 Bern, Switzerland
| | - Aldo Ferrari
- EMPA, Swiss Federal Laboratories for Material Science and Technology, 8600 Dübendorf, Switzerland
| | - Nikola Cesarovic
- Department of Cardiothoracic and Vascular Surgery, German Heart Center Berlin, 13353 Berlin, Germany; Department of Health Sciences and Technology, ETH Zürich, 8093 Zürich, Switzerland
| | - Volkmar Falk
- Department of Cardiothoracic and Vascular Surgery, German Heart Center Berlin, 13353 Berlin, Germany; Department of Health Sciences and Technology, ETH Zürich, 8093 Zürich, Switzerland
| | - Edoardo Mazza
- Department of Mechanical and Process Engineering, Institute for Mechanical Systems, ETH Zurich, 8092 Zurich, Switzerland; EMPA, Swiss Federal Laboratories for Material Science and Technology, 8600 Dübendorf, Switzerland.
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11
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Sharma A, Sharma D, Zhao F. Updates on Recent Clinical Assessment of Commercial Chronic Wound Care Products. Adv Healthc Mater 2023; 12:e2300556. [PMID: 37306401 DOI: 10.1002/adhm.202300556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 06/01/2023] [Indexed: 06/13/2023]
Abstract
Impaired wound healing after trauma, disorders, and surgeries impact millions of people globally every year. Dysregulation in orchestrated healing mechanisms and underlying medical complications make chronic wound management extremely challenging. Besides standard-of-care treatments including broad spectrum antibiotics and wound-debridement, novel adjuvant therapies are clinically tested and commercialized. These include topical agents, skin substitutes, growth factor delivery, and stem cell therapies. With a goal to overcome factors playing pivotal role in delayed wound healing, researchers are exploring novel approaches to elicit desirable healing outcomes in chronic wounds. Although recent innovations in wound care products, therapies, and devices are extensively reviewed in past, a comprehensive review summarizing their clinical outcomes is surprisingly lacking. Herein, this work reviews the commercially available wound care products and their performance in clinical trials to provide a statistically comprehensive understanding of their safety and efficacy. The performance and suitability of various commercial wound care platforms, including xenogeneic and allogenic products, wound care devices, and novel biomaterials, are discussed for chronic wounds. The current clinical evaluation will provide a comprehensive understanding of the benefits and drawbacks of the most-recent approaches and will enable researchers and healthcare providers to develop next-generation technologies for chronic wound management.
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Affiliation(s)
- Archita Sharma
- Department of Biomedical Engineering, Texas A&M University, College Station, TX, 77840, USA
| | - Dhavan Sharma
- Department of Biomedical Engineering, Texas A&M University, College Station, TX, 77840, USA
| | - Feng Zhao
- Department of Biomedical Engineering, Texas A&M University, College Station, TX, 77840, USA
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12
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Barthe M, Gillot L, Perdigon L, Jacobs A, Schoonbroodt G, Mauhin P, Bouhajja E, Osman-Ponchet H. Topical Probiotic Formulation Promotes Rapid Healing in Dog Keratinocyte Cells: A Promising Approach for Wound Management. Int J Mol Sci 2023; 24:12360. [PMID: 37569735 PMCID: PMC10418306 DOI: 10.3390/ijms241512360] [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: 06/29/2023] [Revised: 07/19/2023] [Accepted: 08/01/2023] [Indexed: 08/13/2023] Open
Abstract
The use of probiotics has gained increasing attention as a strategy for wound healing to decrease microbial resistance to disinfectants and antibiotics. This study aimed to investigate the potential of a non-medicinal topical cocktail of probiotic bacteria (CPB) in promoting wound healing in dogs using in vitro scratch assay. Canine Progenitors Epidermal Keratinocytes (CPEK) were exposed to a prototype product formulated with CPB (PPP), non-formulated CPB, and the vehicle. The viability of CPB and CPEK cells was first evaluated in the co-culture model. Then, wound closure was analyzed over time. The CPB required a minimum concentration of 75 CFU/mL for better viability with CPEK. While the CPEK preserved 100% of their viability when PPP was diluted to up to 75,000 CFU/mL. At higher concentrations, the viability of CPEK was reduced by the concomitant effect of the non-formulated CPB and the vehicle. The formulated and non-formulated CPB and the vehicle seem to lead to a dose-dependent increase in cell migration compared to the control. Importantly, at the concentration of 750,000 CFU/mL, the PPP showed a 20% increase in wound closure. Taken together, our findings suggest the potential beneficial effects of the probiotic-based topical cocktail (PPP) on wound healing. However, to confirm and validate these effects, further experiments are necessary to provide more robust evidence and allow us to confidently establish the potential beneficial effects of the probiotic bacteria (CPB) in promoting wound healing.
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Affiliation(s)
- Manon Barthe
- PKDERM Laboratories, 06130 Grasse, France; (M.B.); (L.P.)
| | - Lionel Gillot
- Probiotic Group Luxembourg S.A., Research and Development Department, 9944 Weiswampach, Luxembourg; (L.G.); (A.J.); (G.S.); (P.M.)
| | | | - Aline Jacobs
- Probiotic Group Luxembourg S.A., Research and Development Department, 9944 Weiswampach, Luxembourg; (L.G.); (A.J.); (G.S.); (P.M.)
| | - Gregory Schoonbroodt
- Probiotic Group Luxembourg S.A., Research and Development Department, 9944 Weiswampach, Luxembourg; (L.G.); (A.J.); (G.S.); (P.M.)
| | - Paul Mauhin
- Probiotic Group Luxembourg S.A., Research and Development Department, 9944 Weiswampach, Luxembourg; (L.G.); (A.J.); (G.S.); (P.M.)
| | - Emna Bouhajja
- Probiotic Group Luxembourg S.A., Research and Development Department, 9944 Weiswampach, Luxembourg; (L.G.); (A.J.); (G.S.); (P.M.)
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13
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Rwandamuriye FX, Evans CW, Wylie B, Norret M, Vitali B, Ho D, Nguyen D, Roper EA, Wang T, Hepburn MS, Sanderson RW, Pfirrmann M, Fear VS, Forbes CA, Wyatt K, Ryan AL, Johns TG, Phillips MB, Hodder R, Leslie C, Kennedy BF, Zemek RM, Iyer KS, Lesterhuis WJ. A surgically optimized intraoperative poly(I:C)-releasing hydrogel prevents cancer recurrence. Cell Rep Med 2023; 4:101113. [PMID: 37467718 PMCID: PMC10394259 DOI: 10.1016/j.xcrm.2023.101113] [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: 12/14/2022] [Revised: 05/10/2023] [Accepted: 06/18/2023] [Indexed: 07/21/2023]
Abstract
Recurrences frequently occur following surgical removal of primary tumors. In many cancers, adjuvant therapies have limited efficacy. Surgery provides access to the tumor microenvironment, creating an opportunity for local therapy, in particular immunotherapy, which can induce local and systemic anti-cancer effects. Here, we develop a surgically optimized biodegradable hyaluronic acid-based hydrogel for sustained intraoperative delivery of Toll-like receptor 3 agonist poly(I:C) and demonstrate that it significantly reduces tumor recurrence after surgery in multiple mouse models. Mechanistically, poly(I:C) induces a transient interferon alpha (IFNα) response, reshaping the tumor/wound microenvironment by attracting inflammatory monocytes and depleting regulatory T cells. We demonstrate that a pre-existing IFN signature predicts response to the poly(I:C) hydrogel, which sensitizes tumors to immune checkpoint therapy. The safety, immunogenicity, and surgical feasibility are confirmed in a veterinary trial in canine soft tissue tumors. The surgically optimized poly(I:C)-loaded hydrogel provides a safe and effective approach to prevent cancer recurrence.
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Affiliation(s)
| | - Cameron W Evans
- School of Molecular Sciences, The University of Western Australia, Crawley, WA, Australia
| | - Ben Wylie
- Telethon Kids Institute, The University of Western Australia, Nedlands, WA, Australia
| | - Marck Norret
- School of Molecular Sciences, The University of Western Australia, Crawley, WA, Australia
| | - Breana Vitali
- Telethon Kids Institute, The University of Western Australia, Nedlands, WA, Australia
| | - Diwei Ho
- School of Molecular Sciences, The University of Western Australia, Crawley, WA, Australia
| | - Dat Nguyen
- Telethon Kids Institute, The University of Western Australia, Nedlands, WA, Australia
| | - Ellise A Roper
- Telethon Kids Institute, The University of Western Australia, Nedlands, WA, Australia
| | - Tao Wang
- Telethon Kids Institute, The University of Western Australia, Nedlands, WA, Australia
| | - Matt S Hepburn
- BRITElab, Harry Perkins Institute of Medical Research, QEII Medical Centre, Nedlands, WA, Australia; Centre for Medical Research, The University of Western Australia, Crawley, WA, Australia; Department of Electrical, Electronic and Computer Engineering, School of Engineering, The University of Western Australia, Crawley, WA, Australia
| | - Rowan W Sanderson
- BRITElab, Harry Perkins Institute of Medical Research, QEII Medical Centre, Nedlands, WA, Australia; Centre for Medical Research, The University of Western Australia, Crawley, WA, Australia; Department of Electrical, Electronic and Computer Engineering, School of Engineering, The University of Western Australia, Crawley, WA, Australia
| | - Maren Pfirrmann
- Telethon Kids Institute, The University of Western Australia, Nedlands, WA, Australia; Department of Medical BioSciences, Radboud University Medical Centre, Nijmegen, the Netherlands
| | - Vanessa S Fear
- Telethon Kids Institute, The University of Western Australia, Nedlands, WA, Australia
| | - Catherine A Forbes
- Telethon Kids Institute, The University of Western Australia, Nedlands, WA, Australia
| | - Ken Wyatt
- Perth Veterinary Specialists, Osborne Park, WA, Australia; Murdoch Veterinary School, Murdoch University, Murdoch, WA, Australia
| | - Anne L Ryan
- Telethon Kids Institute, The University of Western Australia, Nedlands, WA, Australia; Department of Oncology, Hematology and Tissue and Cellular Therapies, Perth Children's Hospital, Perth, WA, Australia
| | - Terrance G Johns
- Telethon Kids Institute, The University of Western Australia, Nedlands, WA, Australia
| | - Marianne B Phillips
- Telethon Kids Institute, The University of Western Australia, Nedlands, WA, Australia; Department of Oncology, Hematology and Tissue and Cellular Therapies, Perth Children's Hospital, Perth, WA, Australia
| | - Rupert Hodder
- Department of Surgery, Sir Charles Gairdner Hospital, Nedlands, WA, Australia
| | - Connull Leslie
- Department of Anatomical Pathology, PathWest Laboratory Medicine, QEII Medical Centre, Nedlands, WA, Australia
| | - Brendan F Kennedy
- BRITElab, Harry Perkins Institute of Medical Research, QEII Medical Centre, Nedlands, WA, Australia; Centre for Medical Research, The University of Western Australia, Crawley, WA, Australia; Department of Electrical, Electronic and Computer Engineering, School of Engineering, The University of Western Australia, Crawley, WA, Australia
| | - Rachael M Zemek
- Telethon Kids Institute, The University of Western Australia, Nedlands, WA, Australia
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14
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Yoo J, Kang YH, Baek SJ, Hwang CY. Application of cold atmospheric microwave plasma as an adjunct therapy for wound healing in dogs and cats. J Vet Sci 2023; 24:e56. [PMID: 37532299 PMCID: PMC10404707 DOI: 10.4142/jvs.23067] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 05/26/2023] [Accepted: 06/12/2023] [Indexed: 08/04/2023] Open
Abstract
BACKGROUND Cold atmospheric plasma is a novel innovative approach for wound care, and it is currently underrepresented in veterinary medicine. OBJECTIVES To investigate the efficacy and safety of using cold atmospheric microwave plasma (CAMP) as an adjunct therapy for wound healing in dogs and cats. METHODS Wound healing outcomes were retrospectively analyzed using clinical records of client-owned dogs and cats who were first managed through standard wound care alone (pre-CAMP period) and subsequently via CAMP therapy (CAMP period). The degree of wound healing was estimated based on wound size and a modified wound scoring system. RESULTS Of the 27 acute and chronic wounds included in the analysis, 81.48% showed complete healing after the administration of CAMP as an adjunct therapy to standard care. Most wounds achieved complete healing in < 5 weeks. Compared with the pre-CAMP period, the rate of wound healing significantly increased every week in the CAMP period in terms of in wound size (first week, p < 0.001; second week, p = 0.012; third week, p < 0.001) and wound score (first week, p < 0.001; second week, p < 0.001; third week, p = 0.001). No adverse events were noted except for mild discomfort and transient erythema. CONCLUSIONS CAMP is a well-tolerated therapeutic option with immense potential to support the treatment of wounds of diverse etiology in small animal practice. Further research is warranted to establish specific criteria for CAMP treatment according to wound characteristics.
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Affiliation(s)
- Jisu Yoo
- Laboratory of Veterinary Dermatology and the Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul 08826, Korea
| | - Yeong-Hun Kang
- Laboratory of Veterinary Dermatology and the Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul 08826, Korea
| | - Seung Joon Baek
- Laboratory of Signal Transduction, College of Veterinary Medicine, Seoul National University, Seoul 08826, Korea
| | - Cheol-Yong Hwang
- Laboratory of Veterinary Dermatology and the Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul 08826, Korea.
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15
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Flynn K, Mahmoud NN, Sharifi S, Gould LJ, Mahmoudi M. Chronic Wound Healing Models. ACS Pharmacol Transl Sci 2023; 6:783-801. [PMID: 37200810 PMCID: PMC10186367 DOI: 10.1021/acsptsci.3c00030] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Indexed: 05/20/2023]
Abstract
In this paper, we review and analyze the commonly available wound healing models reported in the literature and discuss their advantages and issues, considering their relevance and translational potential to humans. Our analysis includes different in vitro and in silico as well as in vivo models and experimental techniques. We further explore the new technologies in the study of wound healing to provide an all encompassing review of the most efficient ways to proceed with wound healing experiments. We revealed that there is not one model of wound healing that is superior and can give translatable results to human research. Rather, there are many different models that have specific uses for studying certain processes or stages of wound healing. Our analysis suggests that when performing an experiment to assess stages of wound healing or different therapies to enhance healing, one must consider not only the species that will be used but also the type of model and how this can best replicate the physiology or pathophysiology in humans.
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Affiliation(s)
- Kiley Flynn
- Department
of Radiology and Precision Health Program, Michigan State University, East Lansing, Michigan 48824-1312, United States
| | - Nouf N. Mahmoud
- Faculty
of Pharmacy, Al-Zaytoonah University of
Jordan, Amman 11733, Jordan
- Department
of Biomedical Sciences, College of Health Sciences, QU Health, Qatar University, Doha 2713, Qatar
| | - Shahriar Sharifi
- Department
of Radiology and Precision Health Program, Michigan State University, East Lansing, Michigan 48824-1312, United States
| | - Lisa J. Gould
- Department
of Surgery, South Shore Hospital, South Weymouth, Massachusetts 02190, United States
| | - Morteza Mahmoudi
- Department
of Radiology and Precision Health Program, Michigan State University, East Lansing, Michigan 48824-1312, United States
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16
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Yang C, Zhang Z, Gan L, Zhang L, Yang L, Wu P. Application of Biomedical Microspheres in Wound Healing. Int J Mol Sci 2023; 24:7319. [PMID: 37108482 PMCID: PMC10138683 DOI: 10.3390/ijms24087319] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 04/11/2023] [Accepted: 04/13/2023] [Indexed: 04/29/2023] Open
Abstract
Tissue injury, one of the most common traumatic injuries in daily life, easily leads to secondary wound infections. To promote wound healing and reduce scarring, various kinds of wound dressings, such as gauze, bandages, sponges, patches, and microspheres, have been developed for wound healing. Among them, microsphere-based tissue dressings have attracted increasing attention due to the advantage of easy to fabricate, excellent physicochemical performance and superior drug release ability. In this review, we first introduced the common methods for microspheres preparation, such as emulsification-solvent method, electrospray method, microfluidic technology as well as phase separation methods. Next, we summarized the common biomaterials for the fabrication of the microspheres including natural polymers and synthetic polymers. Then, we presented the application of the various microspheres from different processing methods in wound healing and other applications. Finally, we analyzed the limitations and discussed the future development direction of microspheres in the future.
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Affiliation(s)
- Caihong Yang
- State Key Laboratory of Targeting Oncology, National Center for International Research of Bio-Targeting Theranostics, Guangxi Key Laboratory of Bio-Targeting Theranostics, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Medical University, Nanning 530021, China
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325001, China
- School of Pharmacy, Guangxi Medical University, Nanning 530021, China
| | - Zhikun Zhang
- State Key Laboratory of Targeting Oncology, National Center for International Research of Bio-Targeting Theranostics, Guangxi Key Laboratory of Bio-Targeting Theranostics, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Medical University, Nanning 530021, China
| | - Lu Gan
- State Key Laboratory of Targeting Oncology, National Center for International Research of Bio-Targeting Theranostics, Guangxi Key Laboratory of Bio-Targeting Theranostics, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Medical University, Nanning 530021, China
| | - Lexiang Zhang
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325001, China
| | - Lei Yang
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325001, China
| | - Pan Wu
- State Key Laboratory of Targeting Oncology, National Center for International Research of Bio-Targeting Theranostics, Guangxi Key Laboratory of Bio-Targeting Theranostics, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Medical University, Nanning 530021, China
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17
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Afonso AC, Sousa M, Pinto AR, Cotovio M, Simões M, Saavedra MJ. Biofilm Production by Critical Antibiotic-Resistant Pathogens from an Equine Wound. Animals (Basel) 2023; 13:ani13081342. [PMID: 37106905 PMCID: PMC10135353 DOI: 10.3390/ani13081342] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 04/11/2023] [Accepted: 04/12/2023] [Indexed: 04/29/2023] Open
Abstract
As in human medicine, in veterinary medicine, chronic wounds are often related to polymicrobial infections and the presence of a biofilm, which compromises the effectiveness of therapeutic approaches. In this study, a Lusitano mare presented a 21-day-old chronic wound that was only being treated with an antiseptic. A swab sample was collected, and three isolates of Staphylococcus aureus and one of Pseudomonas aeruginosa were isolated. S. aureus did not show resistance to a panel of antibiotics. However, the P. aeruginosa isolate showed a resistance profile to carbapenems and fluoroquinolones, which may suggest a cross-resistance between antiseptic and antibiotics, given that no antibiotic therapy was applied to the wound or the mare in the previous year. Further experiments were conducted to assess the ability of the isolates to form biofilms, and to ascertain their susceptibility to gentamicin. The results demonstrated that the isolates produced biofilms. Gentamicin at the minimum inhibitory concentration (MIC) and 10× MIC caused biofilm removal between 59.3% and 85.7%, with the highest removal percentage being obtained for the P. aeruginosa isolate (at 10× MIC concentration). This study reveals that an equine wound was colonized by antibiotic resistant bacteria, and that all the wound colonizers could form biofilms, demonstrating the relevance of an adequate diagnosis and treatment when there is a suspicion of a biofilm-infected wound. It also highlights the possibility of resistance transmission between animals, animals and humans, or animals and the environment.
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Affiliation(s)
- Ana C Afonso
- LEPABE-Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, Department of Chemical Engineering, University of Porto, 4200-465 Porto, Portugal
- ALiCE-Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal
- CITAB-Centre for the Research and Technology of Agro-Environmental and Biological Sciences and Inov4Agro, University of Trás-os-Montes e Alto Douro, 5000-801 Vila Real, Portugal
| | - Mariana Sousa
- LEPABE-Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, Department of Chemical Engineering, University of Porto, 4200-465 Porto, Portugal
- ALiCE-Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal
| | - Ana Rita Pinto
- CITAB-Centre for the Research and Technology of Agro-Environmental and Biological Sciences and Inov4Agro, University of Trás-os-Montes e Alto Douro, 5000-801 Vila Real, Portugal
| | - Mário Cotovio
- Department of Veterinary Sciences-Antimicrobials, Biocides & Biofilms Unit, University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal
- CECAV-Veterinary and Animal Research Centre and Associate Laboratory for Animal and Veterinary Science (AL4AnimalS), University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal
| | - Manuel Simões
- LEPABE-Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, Department of Chemical Engineering, University of Porto, 4200-465 Porto, Portugal
- ALiCE-Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal
| | - Maria José Saavedra
- CITAB-Centre for the Research and Technology of Agro-Environmental and Biological Sciences and Inov4Agro, University of Trás-os-Montes e Alto Douro, 5000-801 Vila Real, Portugal
- Department of Veterinary Sciences-Antimicrobials, Biocides & Biofilms Unit, University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal
- CECAV-Veterinary and Animal Research Centre and Associate Laboratory for Animal and Veterinary Science (AL4AnimalS), University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal
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18
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Frey R, Varjonen K. A retrospective case series of the postoperative outcome for 30 dogs with inflammatory interdigital nodules, surgically treated with carbon dioxide laser and a nonantimicrobial wound-healing protocol. Vet Dermatol 2023; 34:150-155. [PMID: 36694420 DOI: 10.1111/vde.13146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 11/18/2022] [Accepted: 12/06/2022] [Indexed: 01/26/2023]
Abstract
BACKGROUND Inflammatory interdigital nodules (IIN) affecting the paws of dogs is a multifactorial and painful condition. Surgery using carbon dioxide (CO 2 ) laser has been shown to be helpful in the management. HYPOTHESIS/OBJECTIVES To assess a postoperative treatment protocol without use of antibiotics following CO2 laser surgery for IIN treatment. ANIMALS Forty-seven paws, in 30 client-owned dogs, with IINs affecting the interdigital web between the 4th and 5th digits of the forepaws, surgically treated using CO2 laser, were included. MATERIALS AND METHODS Medical records were reviewed for demographic details, medication use and wound healing using a set wound care protocol. Time to resolution of the surgical wounds and the postoperative outcome were assessed. RESULTS The mean healing time was 34 days. Resolution was seen in 42 of 47 paws with complications in five paws (11%), including development of new fistulae or nonhealing granulation tissue. Surgery was repeated in those five cases. Relapse occurred during the follow-up period of five-19 months in six paws (13%). CONCLUSIONS AND CLINICAL RELEVANCE This study shows that surgical treatment with CO2 laser for interdigital nodules is successful in most cases. The postoperative outcome using a wound-healing protocol avoiding use of antimicrobials can be used without compromising patient care whilst following antimicrobial stewardship guidelines.
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19
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Peripheral mononuclear cells composition in platelet-rich fibrin in canines with chronic conditions. Sci Rep 2022; 12:17426. [PMID: 36261500 PMCID: PMC9582024 DOI: 10.1038/s41598-022-22487-4] [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: 04/20/2022] [Accepted: 10/14/2022] [Indexed: 01/12/2023] Open
Abstract
Platelet-rich fibrin (PRF) is a hot research topic because of its regenerative effect in humans. However, data reporting about its application in companion animals is lacking. The study aimed to supplement currently available data on PRF cell composition in canine patients by isolating peripheral blood mononuclear cells (PBMC), namely T cells, matured B cells, monocytes and macrophages, and adapting current protocols of cell flow cytometry for PRF analysis. The canine patient population was divided into three subgroups: animals with periodontitis only, animals with neoplasia and periodontitis, and healthy controls. Individual clinical parameters of the patients and evaluation of the wound healing quality were included in the research. In the present study, canine PRF cell composition was analyzed for the first-time using cell flow cytometry protocol. A higher proportion of PBMC cells related to wound healing (CD3+, CD3+ CD4+ CD8-, CD14+) were found in the PRF of control, periodontitis and neoplasia groups compared to the respective blood samples, which implies a positive outcome associated with clinical PRF usage in canine patients. Proportions of monocytes and macrophages were higher in PRF samples compared to the blood of healthy patients and periodontitis-affected patients. However, inflammatory and neoplastic processes do not affect the distribution of PBMC.
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20
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Aisa J, Parlier M. Local wound management: A review of modern techniques and products. Vet Dermatol 2022; 33:463-478. [PMID: 35876262 DOI: 10.1111/vde.13104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 02/01/2022] [Accepted: 05/12/2022] [Indexed: 11/30/2022]
Abstract
Management of wounds is a commonly performed and essential aspect of small animal veterinary medicine. Appropriate wound management is a difficult art to master, due to the inherent complexity of the clinical scenario, as well as the ever-evolving nature of the field with the constant addition of new products and techniques. This article reviews key concepts that may help the practitioner better understand the natural process of wound healing, factors that delay healing and strategies to help improve the local wound environment to make it more conducive to healing during open wound management. The concept of wound bed preparation is defined before common local wound management strategies, such as wound lavage and debridement, are discussed in more detail. Key aspects of the management of biofilms and appropriate use of antimicrobial agents are also reviewed. Finally, the concept of moist wound healing and its impact in modern wound management is explained before a broad variety of types of wound dressings are reviewed, with a particular focus on active dressings.
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Affiliation(s)
- Josep Aisa
- Department of Small Animal Clinical Sciences, University of Tennessee College of Veterinary Medicine, Knoxville, TN, USA
| | - Mark Parlier
- Department of Small Animal Clinical Sciences, University of Tennessee College of Veterinary Medicine, Knoxville, TN, USA
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