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Yang W, Zhong W, Yan S, Wang S, Xuan C, Zheng K, Qiu J, Shi X. Mechanical Stimulation of Anti-Inflammatory and Antioxidant Hydrogels for Rapid Re-Epithelialization. Adv Mater 2024; 36:e2312740. [PMID: 38272455 DOI: 10.1002/adma.202312740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Revised: 01/19/2024] [Indexed: 01/27/2024]
Abstract
The epithelium, an essential barrier to protect organisms against infection, exists in many organs. However, rapid re-epithelialization to restore tissue integrity and function in an adverse environment is challenging. In this work, a long-term anti-inflammatory and antioxidant hydrogel with mechanical stimulation for rapid re-epithelialization, mainly composed of the small molecule thioctic acid, biocompatible glycine, and γ-Fe2O3 nanoparticles is reported. Glycine-modified supramolecular thioctic acid is stable and possesses outstanding mechanical properties. The incorporating γ-Fe2O3 providing the potential contrast function for magnetic resonance imaging observation, can propel hydrogel reconfiguration to enhance the mechanical properties of the hydrogel underwater due to water-initiated release of Fe3+. In vitro experiments show that the hydrogels effectively reduced intracellular reactive oxygen species, guided macrophages toward M2 polarization, and alleviated inflammation. The effect of rapid re-epithelialization is ultimately demonstrated in a long urethral injury model in vivo, and the mechanical stimulation of hydrogels achieves effective functional replacement and ultimately accurate remodeling of the epithelium. Notably, the proposed strategy provides an advanced alternative treatment for patients in need of large-area epithelial reconstruction.
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Affiliation(s)
- Wei Yang
- National Engineering Research Centre for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, P. R. China
| | - Wenwen Zhong
- Department of Urology, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510655, P. R. China
| | - Shengtao Yan
- Department of Emergency, China-Japan Friendship Hospital, Beijing, 100029, P. R. China
| | - Shuting Wang
- National Engineering Research Centre for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, P. R. China
| | - Chengkai Xuan
- National Engineering Research Centre for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, P. R. China
| | - Ke Zheng
- School of Materials Science and Engineering, Dongguan University of Technology, Dongguan, 523808, P. R. China
| | - Jianguang Qiu
- Department of Urology, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510655, P. R. China
| | - Xuetao Shi
- National Engineering Research Centre for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, P. R. China
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510640, P. R. China
- Key Laboratory of Biomedical Engineering of Guangdong Province, South China University of Technology, Guangzhou, 510006, P. R. China
- Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, South China University of Technology, Guangzhou, 510006, P. R. China
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Ruiz-Tovar J, Llavero C. Perianal Application of Glyceryl Trinitrate Ointment Versus Tocopherol Acetate Ointment in the Treatment of Chronic Anal Fissure: A Randomized Clinical Trial. Dis Colon Rectum 2022; 65:406-412. [PMID: 34803148 DOI: 10.1097/dcr.0000000000002120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
BACKGROUND Medical treatment, including glyceryl trinitrate ointment, represents the first step for the management of chronic anal fissure. However, glyceryl trinitrate ointment is associated with headache and, consequently, a high withdrawal rate of the treatment. OBJECTIVE The aim of the present study was to evaluate the effect of the topical application of tocopherol acetate ointment on pain relief and chronic anal fissure epithelialization, comparing it with the effect of a standard treatment with glyceryl trinitrate ointment. DESIGN This is a 2-parallel-group, single-center, randomized controlled, intent-to-treat clinical trial. SETTINGS This study was conducted at the Garcilaso Clinic affiliated with Universidad Alfonso X (Madrid, Spain). PATIENTS Patients with chronic anal fissure were selected. INTERVENTIONS Patients were randomly assigned into 2 groups: patients receiving tocopherol acetate ointment and patients receiving glyceryl trinitrate ointment. MAIN OUTCOME MEASURES The primary end point was quantification of anal pain 8 weeks after beginning the treatment as measured by a Visual Analogue Scale ranging from 0 to 100 mm. The secondary end points were the healing rate (during the treatment period of 8 weeks) and the recurrence rate. RESULTS One hundred sixty consecutive patients were treated, 80 in each group. By 8 weeks after treatment, mean anal pain score declined by 56.2 mm in the glyceryl trinitrate ointment group compared with a mean anal pain score decline of 67.1 mm in the tocopherol acetate ointment group (mean difference, 10.9 mm (95% CI, 4.3-18.6); p = 0.018). Sixteen weeks after finishing the therapy, the recurrence rate was 13.2% in the glyceryl trinitrate ointment group vs 2.9 in the tocopherol acetate ointment group (p = 0.031). LIMITATIONS Limitations of the study include the absence of manometric measurements of the internal anal sphincter before and after the treatments and the use of glyceryl trinitrate ointment as an active comparator, whereas calcium channel blockers are actually the standard treatment. CONCLUSIONS Anal pain was significantly lower in the tocopherol acetate ointment group than in the glyceryl trinitrate ointment group at 8 weeks after treatment. Tocopherol acetate ointment achieved a greater healing rate and a lower recurrence rate 16 weeks after finishing the treatment. See Video Abstract at http://links.lww.com/DCR/B751. REGISTRATION URL: https://www.clinicaltrials.gov; Identifier: NCT03787030.APLICACIÓN PERIANAL DE POMADA DE TRINITRATO DE GLICERILO FRENTE A LA POMADA DE ACETATO DE TOCOFEROL EN EL TRATAMIENTO DE LA FISURA ANAL CRÓNICA: UN ENSAYO CLÍNICO ALEATORIZADOANTECEDENTES:El tratamiento médico, incluida la pomada de trinitrato de glicerilo, representa el primer paso para el tratamiento de la fisura anal crónica. Sin embargo, la pomada de trinitrato de glicerilo se asocia con cefalea y, en consecuencia, una alta tasa de cancelación del tratamiento.OBJETIVO:El objetivo del presente estudio fue evaluar el efecto de la aplicación tópica de pomada de acetato de tocoferol en el alivio del dolor y la epitelización de la fisura anal crónica, comparándolo con el efecto de un tratamiento estándar con pomada de trinitrato de glicerilo.DISEÑO:Ensayo clínico con intención de tratar controlado, aleatorizado, de un solo centro, con dos grupos paralelos.ESCENARIO:Clínica Garcilaso adscrita a la Universidad Alfonso X (Madrid, España).PACIENTES:Pacientes con fisura anal crónica.INTERVENCIONES:Los pacientes fueron aleatorizados en 2 grupos: pacientes que recibieron pomada de acetato de tocoferol y pacientes que recibieron pomada de trinitrato de glicerilo.PRINCIPALES MEDIDAS DE RESULTADO:El criterio de valoración principal fue la cuantificación del dolor anal 8 semanas después de comenzar el tratamiento, medido por la escala analógica visual que varía de 0 a 100 mm. Los criterios de valoración secundarios fueron la tasa de curación (durante el período de tratamiento de 8 semanas) y la tasa de recurrencia.RESULTADOS:Se trataron ciento sesenta pacientes consecutivos, 80 en cada grupo. A las ocho semanas después del tratamiento, la puntuación media de dolor anal se redujo en 56.2 mm en el grupo de pomada de trinitrato de glicerilo en comparación con una disminución de la puntuación de dolor anal medio de 67.1 mm en el grupo de pomada de acetato de tocoferol (diferencia media: 10.9 mm (intervalo de confianza del 95%; 4.3 a 18.6; p = 0.018) Dieciséis semanas después de finalizar la terapia, la tasa de recurrencia fue del 13.2% en el grupo de pomada de trinitrato de glicerilo frente a 2.9 en el grupo de pomada de acetato de tocoferol (p = 0.031).LIMITACIONES:Ausencia de medidas manométricas del esfínter anal interno antes y después de los tratamientos. Ungüento de trinitrato de glicerilo como comparador activo, mientras que los bloqueadores de los canales de calcio son en realidad el tratamiento estándar de oro.CONCLUSIONES:El dolor anal fue significativamente menor en el grupo de ungüento de acetato de tocoferol que en el grupo de ungüento de trinitrato de glicerilo a las 8 semanas después del tratamiento. La pomada de acetato de tocoferol logró una mayor tasa de curación y una menor tasa de recurrencia 16 semanas después de finalizar el tratamiento. Consulte Video Resumen en http://links.lww.com/DCR/B751. (Traducción-Dr. Jorge Silva Velazco).
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Veríssimo AH, Ribeiro AKC, Martins ARLDA, Gurgel BCDV, Lins RDAU. Comparative analysis of the hemostatic, analgesic and healing effects of cyanoacrylate on free gingival graft surgical wounds in donor and recipient areas: a systematic review. J Mater Sci Mater Med 2021; 32:98. [PMID: 34406492 PMCID: PMC8373739 DOI: 10.1007/s10856-021-06573-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Accepted: 06/14/2021] [Indexed: 06/13/2023]
Abstract
UNLABELLED To analyze the hemostatic, Dsurgical wounds in donor and recipient areas of free gingival grafts (FGG). Five databases (PubMed, Scopus, Science Direct, Cochrane and Web of Science) were searched up to March 2021 (PROSPERO CRD42019134497). The focus of the study (cyanoacrylate) was combined with the condition (periodontal surgery OR free gingival graft OR free soft tissue graft OR autografts), and outcome (healing OR epithelialization OR pain OR analgesia OR bleeding OR hemostasis OR hemostatic). Studies reporting cyanoacrylate isolated or associated with another substance in FGG stabilization and closure were investigated and assessed for the quality and risk of bias through the Cochrane Manual. Six studies with 323 participants were included. Evaluation of the quality and risk of bias highlighted a low risk for four articles, intermediate for one and unclear for another. The use of cyanoacrylate associated or not with the hemostatic sponge or the platelet-rich fibrin was more effective in healing (three studies), analgesia (four studies), and hemostasis in one study (p < 0.05). However, groups with the association in cyanoacrylate showed superior healing, and analgesic action to the isolated cyanoacrylate group. In addition, two studies demonstrated that cyanoacrylate use reduces surgery duration, one study showed that it reduces postoperative sensibility, and another present hemostatic effect (p < 0.05). There is scarce literature for the use of cyanoacrylate in FGG wounds indicates that it can promote a minor inflammatory response, reduce operation time, does not interfere with healing, relieves postoperative discomfort, and suggests the possibility immediate hemostasis. Its use presents an alternative to suturing in FGG surgeries. But, the limited number of cases and the relative heterogeneity of the included studies suggest caution in generalizing the indication. CLINICAL RELEVANCE Cyanoacrylate seems to present analgesic effects and less pain when applied to wound closure and covering donor and recipient areas reducing the need for postoperative analgesic medication; and has a healing effect in the closure of the donor area on the palate. In addition, it can reduce bleeding time after surgery, and prevents late bleeding during the first postsurgical week. Scientific justification: To evaluate the hemostatic, analgesic and healing actions of cyanoacrylate compared to the suture thread and other agents when used to close surgical wounds from periodontal free gingival graft surgical wounds in both the donor and recipient areas of the graft. MAIN FINDINGS The use of cyanoacrylate individually or in association with wound dressing agents presents analgesic effects because the patient reports less pain experienced when cyanoacrylate is applied to the wound closure and covering, thereby reducing the need for postoperative analgesic medication. In addition, a healing effect is observed in the closure of the donor area on the palate; as well as it seems to present hemostatic effects, reducing the bleeding time after surgery, and preventing late bleeding during the first postsurgical week. PRACTICAL IMPLICATIONS Dentists may cautiously apply cyanoacrylate after periodontal surgeries for free gingival graft in both the donor and recipient areas of the graft. However, they must consider the limitations of the surgery, tension-free positioning, the patient's dyscrasia and postoperative care, constituting a set of predictors for adequate clinical decision-making. Widespread use of such material for all patients and surgical configurations may not be recommended.
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Affiliation(s)
- Aretha Heitor Veríssimo
- Department of Dentistry, Federal University of Rio Grande do Norte (UFRN), Av. Salgado Filho, 1787, Lagoa Nova, Natal, 59056-000, Brazil.
| | - Anne Kaline Claudino Ribeiro
- Department of Dentistry, Federal University of Rio Grande do Norte (UFRN), Av. Salgado Filho, 1787, Lagoa Nova, Natal, 59056-000, Brazil
| | - Ana Rafaela Luz de Aquino Martins
- Department of Dentistry, Federal University of Rio Grande do Norte (UFRN), Av. Salgado Filho, 1787, Lagoa Nova, Natal, 59056-000, Brazil
| | - Bruno Cesar de Vasconcelos Gurgel
- Department of Dentistry, Federal University of Rio Grande do Norte (UFRN), Av. Salgado Filho, 1787, Lagoa Nova, Natal, 59056-000, Brazil
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Kishimoto I, Ohnishi H, Yamahara K, Nakagawa T, Yamashita M, Omori K, Yamamoto N. Insulin-like growth factor 1 promotes the extension of Tracheal Epithelium in an in Vitro Tracheal organ culture model. Auris Nasus Larynx 2021; 48:441-450. [PMID: 33041094 DOI: 10.1016/j.anl.2020.09.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 08/26/2020] [Accepted: 09/24/2020] [Indexed: 10/23/2022]
Abstract
OBJECTIVE Rapid epithelialization is crucial to maintain tracheal patency and prevent potential graft failure in tracheal reconstruction after tracheal resection for cancer with tracheal infiltration or tracheal stenosis. Insulin-like growth factor 1 is a liver-secreted endocrine molecule that controls cell proliferation, differentiation, and apoptosis and has been reported to promote epithelialization in several organs. Here, we utilized mouse tracheal organ cultures to examine the effect of insulin-like growth factor 1 on tracheal epithelialization. METHODS The trachea was resected from thirteen-week-old female ICR mice, and cut into small plate-shaped tracheal sections. First, the expression of insulin-like growth factor 1 receptor was assessed by immunohistochemistry. Secondly, the tracheal sections were cultured for seven days in the culture medium, and the morphological change during the seven-day culture was assessed by immunohistochemistry, hematoxylin and eosin staining, and scanning electron microscopy. Moreover, the tracheal sections were cultured for 48 h with different concentration of insulin-like growth factor 1 (0, 0.1, 1 and 10 µg/mL) in the culture medium, and the extension length of the tracheal epithelium during culture was measured in order to assess the effect of topical IGF1 on tracheal epithelialization. RESULTS Immunohistochemistry showed that insulin-like growth factor 1 receptor was expressed in tracheal epithelium. Immunohistochemistry, hematoxylin and eosin staining, and scanning electron microscopy showed that the tracheal organ cultures were stable for at least seven days without apparent morphological damage. The effect of insulin-like growth factor 1 on tracheal epithelialization was examined in plate-shaped tracheal sections cultured in medium supplemented with or without insulin-like growth factor 1 for 48 h. We also found that the epithelial edge of plate-shaped tracheal sections extended further along the surface of the tracheal section in culture medium containing insulin-like growth factor 1 compared with that in culture medium without insulin-like growth factor 1. CONCLUSION The current study using an in vitro mouse tracheal organ culture model demonstrated that topical insulin-like growth factor 1 treatment promoted the extension of tracheal epithelium, suggesting the potential utility of insulin-like growth factor 1 in aiding rapid tracheal epithelialization in patients requiring tracheal reconstruction using tissue-engineered tracheas.
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Affiliation(s)
- Ippei Kishimoto
- Department of Otolaryngology, Head and Neck Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-cho, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Hiroe Ohnishi
- Department of Otolaryngology, Head and Neck Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-cho, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Kohei Yamahara
- Department of Otolaryngology - Head and Neck Surgery, Shizuoka City Hospital, 10-93 Ohte-machi, Aoi-ku, Shizuoka, 420-8630, Japan
| | - Takayuki Nakagawa
- Department of Otolaryngology, Head and Neck Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-cho, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Masaru Yamashita
- Department of Otolaryngology - Head and Neck Surgery, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1 Sakuragaoka, Kagoshima, 420-8527, Japan
| | - Koichi Omori
- Department of Otolaryngology, Head and Neck Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-cho, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Norio Yamamoto
- Department of Otolaryngology, Head and Neck Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-cho, Sakyo-ku, Kyoto, 606-8507, Japan.
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Elbialy ZI, Assar DH, Abdelnaby A, Asa SA, Abdelhiee EY, Ibrahim SS, Abdel-Daim MM, Almeer R, Atiba A. Healing potential of Spirulina platensis for skin wounds by modulating bFGF, VEGF, TGF-ß1 and α-SMA genes expression targeting angiogenesis and scar tissue formation in the rat model. Biomed Pharmacother 2021; 137:111349. [PMID: 33567349 DOI: 10.1016/j.biopha.2021.111349] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 01/16/2021] [Accepted: 01/27/2021] [Indexed: 02/06/2023] Open
Abstract
Blue-green microalga Spirulina platensis (SP) gained more attention for its antioxidant and/or anti-inflammatory properties magnifying its beneficial effects as a feed additive and for cosmetic and biomedical applications. This study was performed to examine the impact of SP on the cutaneous wound and burn healing and to develop an understanding of the correlation between the sequelae of wound healing and the molecular expression patterns of wound healing-related genes as angiogenic basic fibroblast growth factor (bFGF) and vascular endothelial growth factor (VEGF) and fibrosis-related genes as transforming growth factor-β (TGF-β) and α-smooth muscle actin (α-SMA) in rat wound models. To achieve these goals, two experiments were performed on 32 Wister male rats that were divided into 4 groups of 8 rats each. Each experiment was represented by 2 groups; the control group (CG) and the Spirulina group (SG). A full-thickness wound (1.5 × 1.5 cm) and burn wound (2 × 2 cm) were made on the back of each generally anaesthetized rat and the areas of wound and burn were measured on days of 0, 3, 6, 9, 12, and 15 and 0, 3, 6, 9, 12, 15, 18, and 21 post-wound and post-burn respectively. In both experiments, SP was topically applied on the backs of wounded and burned rats in Spirulina treated groups. The phases of wound granulation tissues were detected histopathologically. Immunohistochemistry was used to determine the expressions of (TGF-B1) and (VEGF). Furthermore, the relative quantification of gene expression was implemented using the (bFGF), (VEGF), (TGF-Ɓ1), and (α-SMA) as target genes. Histopathological examination revealed inflammatory cell infiltration, angiogenesis, epithelialization, and extracellular matrix deposition and wound contraction in SG as compared to CG in both experiments. Immunohistochemistry results showed a significant improvement in the VEGF and TGF-β1 expression levels of SG in both experiments. Interestingly, SG in both experiments revealed upregulation of angiogenic genes (bFGF and VEGF) and downregulation of fibrotic genes (TGF-β1 and α-SMA). In conclusion, our findings suggest that the topically applied Spirulina promoted wound healing. Thus, SP can be used as a biomedical application to treat various skin wounds and may reveal a potential molecular basis for future promising antifibrotic agents against scar formation.
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Affiliation(s)
- Zizy I Elbialy
- Fish Processing and Biotechnology Department, Faculty of Fisheries Sciences and Aquaculture, Kafrelsheikh University, Kafrelsheikh 33516, Egypt.
| | - Doaa H Assar
- Clinical Pathology Department, Faculty of Veterinary Medicine, Kafrelsheikh University, Kafrelsheikh 33516, Egypt.
| | - Aml Abdelnaby
- Fish Processing and Biotechnology Department, Faculty of Fisheries Sciences and Aquaculture, Kafrelsheikh University, Kafrelsheikh 33516, Egypt
| | - Samah Abu Asa
- Pathology Department, Faculty of Veterinary Medicine, Kafrelsheikh University, Kafrelsheikh 33516, Egypt
| | - Ehab Y Abdelhiee
- Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Matrouh University, Matrouh, Egypt
| | - Samar S Ibrahim
- Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Benha University, Egypt
| | - Mohamed M Abdel-Daim
- Department of Zoology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; Pharmacology Department, Faculty of Veterinary Medicine, Suez Canal University, Ismailia 41522, Egypt
| | - Rafa Almeer
- Department of Zoology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Ayman Atiba
- Department of Surgery, Anesthesiology, and Radiology, Faculty of Veterinary Medicine, Kafrelsheikh University, Kafrelsheikh 33516, Egypt
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Bakr RO, Amer RI, Attia D, Abdelhafez MM, Al-Mokaddem AK, El-Gendy AENG, El-Fishawy AM, Fayed MAA, Gad SS. In-vivo wound healing activity of a novel composite sponge loaded with mucilage and lipoidal matter of Hibiscus species. Biomed Pharmacother 2021; 135:111225. [PMID: 33434856 DOI: 10.1016/j.biopha.2021.111225] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 12/30/2020] [Accepted: 12/31/2020] [Indexed: 02/06/2023] Open
Abstract
Many researches have been undergone to hasten the natural wound healing process. In this study, several Hibiscus species (leaves) were extracted with petroleum ether, methanol, and their mucilage was separated. All the tested species extracts were assessed for their viability percentage using the water-soluble tetrazolium. H.syriacus was the plant of choice to be incorporated in a new drug delivery system and evaluated for its wound healing activity. H.syriacus petroleum ether extract (PEE) showed a high percentage of palmitic and oleic acids while its mucilage demonstrated high glucosamine and galacturonic acid. It was selected to be formulated and pharmaceutically evaluated into three different composite sponges using chitosan in various ratios. Fourier-transformed infrared spectroscopy investigated the chemical interaction between the utilized sponges' ingredients. Morphological characteristics were evaluated using scanning electron microscopy. H.syriacus composite sponge of mucilage: chitosan (1:5) was loaded with three different concentrations of PEE. Medicated formulations were assessed in rat model of excision wound model. The wound healing ability was clearly proved by the clinical acceleration, histopathological examination, and modulation of correlated inflammatory parameters as tumor necrosis factor in addition to vascular endothelial growth factor suggesting a promising valuable candidate that supports the management of excision wounds using single-dose preparation.
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Affiliation(s)
- Riham O Bakr
- Department of Pharmacognosy, Faculty of Pharmacy, October University for Modern Sciences and Arts (MSA), 11787, Giza, Egypt.
| | - Reham I Amer
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Al-Azhar University, Cairo, Egypt; Department of Pharmaceutics, Faculty of Pharmacy, October University for Modern Sciences and Arts (MSA), Giza, Egypt
| | - Dalia Attia
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, The British University in Egypt (BUE), Cairo, Egypt
| | - Mai M Abdelhafez
- Department of Pharmacology, Faculty of Pharmacy, October University for Modern Sciences and Arts (MSA), Giza, Egypt
| | - Asmaa K Al-Mokaddem
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, 12211 Giza, Egypt
| | - Abd El-Nasser G El-Gendy
- Department of Medicinal and Aromatic Plants Research, National Research Center, Giza, 12622, Egypt
| | - Ahlam M El-Fishawy
- Department of Pharmacognosy, Faculty of Pharmacy, Cairo University, 11562 Giza, Egypt
| | - Marwa A A Fayed
- Department of Pharmacognosy, Faculty of Pharmacy, University of Sadat City, 32897, Egypt
| | - Sameh S Gad
- Department of Pharmacology, Faculty of Pharmacy, October University for Modern Sciences and Arts (MSA), Giza, Egypt
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Takagi T, Naito Y, Higashimura Y, Uchiyama K, Okayama T, Mizushima K, Katada K, Kamada K, Ishikawa T, Itoh Y. Rectal administration of carbon monoxide inhibits the development of intestinal inflammation and promotes intestinal wound healing via the activation of the Rho-kinase pathway in rats. Nitric Oxide 2021; 107:19-30. [PMID: 33340673 DOI: 10.1016/j.niox.2020.12.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 12/12/2020] [Accepted: 12/14/2020] [Indexed: 11/24/2022]
Abstract
The inhalation of carbon monoxide (CO) gas and the administration of CO-releasing molecules were shown to inhibit the development of intestinal inflammation in a murine colitis model. However, it remains unclear whether CO promotes intestinal wound healing. Herein, we aimed to evaluate the therapeutic effects of the topical application of CO-saturated saline enemas on intestinal inflammation and elucidate the underlying mechanism. Acute colitis was induced with trinitrobenzene sulfonic acid (TNBS) in male Wistar rats. A CO-saturated solution was prepared via bubbling 50% CO gas into saline and was rectally administrated twice a day after colitis induction; rats were sacrificed 3 or 7 days after induction for the study of the acute or healing phases, respectively. The distal colon was isolated, and ulcerated lesions were measured. In vitro wound healing assays were also employed to determine the mechanism underlying rat intestinal epithelial cell restitution after CO treatment. CO solution rectal administration ameliorated acute TNBS-induced colonic ulceration and accelerated ulcer healing without elevating serum CO levels. The increase in thiobarbituric acid-reactive substances and myeloperoxidase activity after induction of acute TNBS colitis was also significantly inhibited after CO treatment. Moreover, the wound healing assays revealed that the CO-saturated medium enhanced rat intestinal epithelial cell migration via the activation of Rho-kinase. In addition, the activation of Rho-kinase in response to CO treatment was confirmed in the inflamed colonic tissue. Therefore, the rectal administration of a CO-saturated solution protects the intestinal mucosa from inflammation and accelerates colonic ulcer healing through enhanced epithelial cell restitution. CO may thus represent a novel therapeutic agent for the treatment of inflammatory bowel disease.
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Affiliation(s)
- Tomohisa Takagi
- Department for Medical Innovation and Translational Medical Science, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, 602-8566, Japan; Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, 602-8566, Japan.
| | - Yuji Naito
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, 602-8566, Japan
| | - Yasuki Higashimura
- Department of Food Science, Ishikawa Prefectural University, Nonoichi, 921-8836, Japan
| | - Kazuhiko Uchiyama
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, 602-8566, Japan
| | - Tetsuya Okayama
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, 602-8566, Japan
| | - Katsura Mizushima
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, 602-8566, Japan
| | - Kazuhiro Katada
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, 602-8566, Japan
| | - Kazuhiro Kamada
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, 602-8566, Japan
| | - Takeshi Ishikawa
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, 602-8566, Japan
| | - Yoshito Itoh
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, 602-8566, Japan
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Wang B, Zhang M, Urabe G, Shirasu T, Guo LW, Kent KC. PERK Inhibition Promotes Post-angioplasty Re-endothelialization via Modulating SMC Phenotype Changes. J Surg Res 2021; 257:294-305. [PMID: 32871430 PMCID: PMC11034999 DOI: 10.1016/j.jss.2020.05.070] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 04/19/2020] [Accepted: 05/06/2020] [Indexed: 12/18/2022]
Abstract
BACKGROUND Drug-eluting stents impair post-angioplasty re-endothelialization thus compromising restenosis prevention while heightening thrombotic risks. We recently found that inhibition of protein kinase RNA-like endoplasmic reticulum kinase (PERK) effectively mitigated both restenosis and thrombosis in rodent models. This motivated us to determine how PERK inhibition impacts re-endothelialization. METHODS Re-endothelialization was evaluated in endothelial-denuded rat carotid arteries after balloon angioplasty and periadventitial administration of PERK inhibitor in a hydrogel. To study whether PERK in smooth muscle cells (SMCs) regulates re-endothelialization by paracrinally influencing endothelial cells (ECs), denuded arteries exposing SMCs were lentiviral-infected to silence PERK; in vitro, the extracellular vesicles isolated from the medium of PDGF-activated, PERK-upregulating human primary SMCs were transferred to human primary ECs. RESULTS Treatment with PERK inhibitor versus vehicle control accelerated re-endothelialization in denuded arteries. PERK-specific silencing in the denuded arterial wall (mainly SMCs) also enhanced re-endothelialization compared to scrambled shRNA control. In vitro, while medium transfer from PDGF-activated SMCs impaired EC viability and increased the mRNA levels of dysfunctional EC markers, either PERK inhibition or silencing in donor SMCs mitigated these EC changes. Furthermore, CXCL10, a paracrine cytokine detrimental to ECs, was increased by PDGF activation and decreased after PERK inhibition or silencing in SMCs. CONCLUSIONS Attenuating PERK activity pharmacologically or genetically provides an approach to accelerating post-angioplasty re-endothelialization in rats. The mechanism may involve paracrine factors regulated by PERK in SMCs that impact neighboring ECs. This study rationalizes future development of PERK-targeted endothelium-friendly vascular interventions.
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MESH Headings
- Angioplasty, Balloon/adverse effects
- Angioplasty, Balloon/instrumentation
- Animals
- Carotid Arteries/drug effects
- Carotid Arteries/pathology
- Carotid Arteries/surgery
- Coronary Restenosis/etiology
- Coronary Restenosis/prevention & control
- Disease Models, Animal
- Drug-Eluting Stents/adverse effects
- Endothelial Cells/drug effects
- Endothelial Cells/pathology
- Endothelium, Vascular/cytology
- Endothelium, Vascular/drug effects
- Endothelium, Vascular/pathology
- Humans
- Male
- Muscle, Smooth, Vascular/cytology
- Muscle, Smooth, Vascular/drug effects
- Muscle, Smooth, Vascular/pathology
- Myocytes, Smooth Muscle/drug effects
- Myocytes, Smooth Muscle/metabolism
- Myocytes, Smooth Muscle/pathology
- Paracrine Communication/drug effects
- Paracrine Communication/genetics
- Protein Kinase Inhibitors/administration & dosage
- RNA, Small Interfering/metabolism
- Rats
- Re-Epithelialization/drug effects
- Re-Epithelialization/genetics
- eIF-2 Kinase/antagonists & inhibitors
- eIF-2 Kinase/genetics
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Affiliation(s)
- Bowen Wang
- Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, Ohio; Department of Surgery, College of Medicine, The Ohio State University, Columbus, Ohio; Department of Surgery, School of Medicine, University of Virginia, Charlottesville, Virginia
| | - Mengxue Zhang
- Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, Ohio; Department of Surgery, College of Medicine, The Ohio State University, Columbus, Ohio; Cellular and Molecular Pathology Graduate Program, Department of Pathology, University of Wisconsin-Madison, Madison, Wisconsin
| | - Go Urabe
- Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, Ohio; Department of Surgery, College of Medicine, The Ohio State University, Columbus, Ohio
| | - Takuro Shirasu
- Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, Ohio; Department of Surgery, College of Medicine, The Ohio State University, Columbus, Ohio; Department of Surgery, School of Medicine, University of Virginia, Charlottesville, Virginia; Department of Physiology & Cell Biology, College of Medicine, The Ohio State University, Columbus, Ohio
| | - Lian-Wang Guo
- Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, Ohio; Department of Surgery, College of Medicine, The Ohio State University, Columbus, Ohio; Department of Surgery, School of Medicine, University of Virginia, Charlottesville, Virginia; Department of Physiology & Cell Biology, College of Medicine, The Ohio State University, Columbus, Ohio.
| | - K Craig Kent
- Department of Surgery, College of Medicine, The Ohio State University, Columbus, Ohio; Department of Surgery, School of Medicine, University of Virginia, Charlottesville, Virginia.
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9
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Borovkova NV, Makarov MS, Ponomarev IN, Andreev YV, Storozheva MV, Budaev AA. Experimental Study of the Effect of Biological Matrixes with Stabilized and Non-Stabilized Platelets on Reparative Process in the Wound Equivalent to Deep Burn. Bull Exp Biol Med 2020; 170:128-134. [PMID: 33231804 DOI: 10.1007/s10517-020-05019-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Indexed: 11/26/2022]
Abstract
We studied reparative effect of platelet-filled biological matrixes in the treatment of mice with wounds equivalent to deep burn. The wound coatings were based on decellularized dermal matrix without platelets (control), with native platelets, and with platelets stabilized with 2.5 μM nanosilver. In 3 days, the epithelial layer and derma were absent in all groups and extensive scab was formed. Dermal matrix with platelets simulated intensive migration of macrophages and fibroblasts to the wound bottom; in the control group, this migration was absent. In 14 days, granulation tissue appeared in the wound bottom in animals of all groups; in the experimental groups, the number of vessels was 2-4-fold higher than in the control, though the number of inflammatory cells in experimental groups remained high. On day 21, the scab on the most of the wound area was absent in all animals of the experimental groups and epithelialization and hair growth were pronounced, comparing to control. Nevertheless, in experiment dermal layer was not already completed, inflammation reaction remained.
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Affiliation(s)
- N V Borovkova
- N. V. Sklifosovsky Research Institute for Emergency Medicine, Moscow Healthcare Department, Moscow, Russia
| | - M S Makarov
- N. V. Sklifosovsky Research Institute for Emergency Medicine, Moscow Healthcare Department, Moscow, Russia.
| | - I N Ponomarev
- N. V. Sklifosovsky Research Institute for Emergency Medicine, Moscow Healthcare Department, Moscow, Russia
| | - Yu V Andreev
- N. V. Sklifosovsky Research Institute for Emergency Medicine, Moscow Healthcare Department, Moscow, Russia
| | - M V Storozheva
- N. V. Sklifosovsky Research Institute for Emergency Medicine, Moscow Healthcare Department, Moscow, Russia
| | - A A Budaev
- N. V. Sklifosovsky Research Institute for Emergency Medicine, Moscow Healthcare Department, Moscow, Russia
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10
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Jiang C, Li R, Ma X, Hu H, Wei L, Zhao J. Plerixafor stimulates adhesive activity and endothelial regeneration of endothelial progenitor cells via elevating CXCR7 expression. J Diabetes Complications 2020; 34:107654. [PMID: 32741660 DOI: 10.1016/j.jdiacomp.2020.107654] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 06/14/2020] [Accepted: 06/14/2020] [Indexed: 01/28/2023]
Abstract
AIMS To assess the effects of plerixafor on function and endothelial regeneration of endothelial progenitor cells (EPCs). METHODS The proliferation and adhesion capacity of EPCs were evaluated in vitro. Furthermore, the expression levels of CXC chemokine receptor-7 (CXCR7) were detected before and after treatment with plerixafor. The CXCR7 expression of EPCs was knocked-down by RNA interference to evaluate the role of CXCR7 in regulating function of EPCs. A rat carotid artery injury model was established to assess the influences of plerixafor on endothelial regeneration. RESULTS Plerixafor stimulated adhesion capacity of EPCs, associating with upregulation of CXCR7 and activation of LFA-1 and VLA-4 molecules. Knockdown of CXCR7 slightly impaired proliferation capacity but significantly attenuated adhesion capacity of EPCs. Plerixafor facilitated endothelial repair at 7 days, while reduced neointimal hyperplasia at 7 and 14 days via recruiting more EPCs participating in endothelial reparation. CONCLUSIONS Plerixafor can positively regulate adhesion capacity of EPCs to HUVECs via elevating the expression level of CXCR7 and stimulating LFA-1 and VLA-4 molecules activation. Treatment with plerixafor accelerated re-endothelialization and inhibited neointimal hyperplasia after endoth elial injury, indicating that it can to be used for endothelial regeneration.
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Affiliation(s)
- Chunyu Jiang
- Department of Radiology, The Sixth People's Hospital, Affiliated to Shanghai Jiao Tong University, 600 Yi-Shan Road, Shanghai 200233, PR China
| | - Ruiting Li
- Department of Radiology, The Sixth People's Hospital, Affiliated to Shanghai Jiao Tong University, 600 Yi-Shan Road, Shanghai 200233, PR China
| | - Xu Ma
- Department of Radiology, The Sixth People's Hospital, Affiliated to Shanghai Jiao Tong University, 600 Yi-Shan Road, Shanghai 200233, PR China
| | - Hui Hu
- Department of Radiology, The Sixth People's Hospital, Affiliated to Shanghai Jiao Tong University, 600 Yi-Shan Road, Shanghai 200233, PR China
| | - Liming Wei
- Department of Radiology, The Sixth People's Hospital, Affiliated to Shanghai Jiao Tong University, 600 Yi-Shan Road, Shanghai 200233, PR China
| | - Jungong Zhao
- Department of Radiology, The Sixth People's Hospital, Affiliated to Shanghai Jiao Tong University, 600 Yi-Shan Road, Shanghai 200233, PR China..
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11
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Moses RL, Boyle GM, Howard-Jones RA, Errington RJ, Johns JP, Gordon V, Reddell P, Steadman R, Moseley R. Novel epoxy-tiglianes stimulate skin keratinocyte wound healing responses and re-epithelialization via protein kinase C activation. Biochem Pharmacol 2020; 178:114048. [PMID: 32446889 DOI: 10.1016/j.bcp.2020.114048] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Accepted: 05/19/2020] [Indexed: 12/12/2022]
Abstract
Epoxy-tiglianes are a novel class of diterpene esters. The prototype epoxy-tigliane, EBC-46 (tigilanol tiglate), possesses potent anti-cancer properties and is currently in clinical development as a local treatment for human and veterinary cutaneous tumors. EBC-46 rapidly destroys treated tumors and consistently promotes wound re-epithelialization at sites of tumor destruction. However, the mechanisms underlying these keratinocyte wound healing responses are not completely understood. Here, we investigated the effects of EBC-46 and an analogue (EBC-211) at 1.51 nM-151 µM concentrations, on wound healing responses in immortalized human skin keratinocytes (HaCaTs). Both EBC-46 and EBC-211 (1.51 nM-15.1 µM) accelerated G0/G1-S and S-G2/M cell cycle transitions and HaCaT proliferation. EBC-46 (1.51-151 nM) and EBC-211 (1.51 nM-15.1 µM) further induced significant HaCaT migration and scratch wound repopulation. Stimulated migration/wound repopulation responses were even induced by EBC-46 (1.51 nM) and EBC-211 (1.51-151 nM) with proliferation inhibitor, mitomycin C (1 μM), suggesting that epoxy-tiglianes can promote migration and wound repopulation independently of proliferation. Expression profiling analyses showed that epoxy-tiglianes modulated keratin, DNA synthesis/replication, cell cycle/proliferation, motility/migration, differentiation, matrix metalloproteinase (MMP) and cytokine/chemokine gene expression, to facilitate enhanced responses. Although epoxy-tiglianes down-regulated established cytokine and chemokine agonists of keratinocyte proliferation and migration, enhanced HaCaT responses were demonstrated to be mediated via protein kinase C (PKC) phosphorylation and significantly abrogated by pan-PKC inhibitor, bisindolylmaleimide-1 (BIM-1, 1 μM). By identifying how epoxy-tiglianes stimulate keratinocyte healing responses and re-epithelialization in treated skin, our findings support the further development of this class of small molecules as potential therapeutics for other clinical situations associated with impaired re-epithelialization, such as non-healing skin wounds.
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Affiliation(s)
- Rachael L Moses
- Regenerative Biology Group, School of Dentistry, Cardiff Institute of Tissue Engineering and Repair (CITER), College of Biomedical and Life Sciences, Cardiff University, UK
| | - Glen M Boyle
- Cancer Drug Mechanisms Group, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
| | - Rachel A Howard-Jones
- Tenovus Institute, School of Medicine, College of Biomedical and Life Sciences, Cardiff University, UK
| | - Rachel J Errington
- Tenovus Institute, School of Medicine, College of Biomedical and Life Sciences, Cardiff University, UK
| | - Jenny P Johns
- Cancer Drug Mechanisms Group, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
| | | | - Paul Reddell
- QBiotics Group, Yungaburra, Queensland, Australia
| | - Robert Steadman
- Welsh Kidney Research Unit, Division of Infection and Immunity, Cardiff Institute of Tissue Engineering and Repair (CITER), School of Medicine, College of Biomedical and Life Sciences, Cardiff University, UK
| | - Ryan Moseley
- Regenerative Biology Group, School of Dentistry, Cardiff Institute of Tissue Engineering and Repair (CITER), College of Biomedical and Life Sciences, Cardiff University, UK.
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12
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Pemmari T, Laakso J, Patrikainen MS, Parkkila S, Järvinen TAH. Carbonic Anhydrase VI in Skin Wound Healing Study on Car6 Knockout Mice. Int J Mol Sci 2020; 21:ijms21145092. [PMID: 32708518 PMCID: PMC7404312 DOI: 10.3390/ijms21145092] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 07/11/2020] [Accepted: 07/15/2020] [Indexed: 01/22/2023] Open
Abstract
Carbonic anhydrases (CAs) contribute to tumor cell migration by generating an acidic environment through the conversion of carbon dioxide to bicarbonate and a proton. CA VI is secreted to milk and saliva, and it could contribute to wound closure, as a potential trophic factor, in animals that typically lick their wounds. Our aim was to investigate whether human CA VI improves skin-wound healing in full-thickness skin-wound models. The effect was studied in Car6 -/- knockout mice and wild type littermates. Half of both mice strains were given topically administered, milk-derived CA VI after wounding and eight hours later. The amount of topically given CA VI exceeded the predicted amount of natural saliva-delivered CA VI. The healing was followed for seven days and studied from photographs and histological sections. Our results showed no significant differences between the treatment groups in wound closure, re-epithelization, or granulation tissue formation, nor did the Car6 genotype affect the healing. Our results demonstrate that CA VI does not play a major role in skin-wound healing and also suggest that saliva-derived CA VI is not responsible for the licking-associated improved wound healing in animals.
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Affiliation(s)
- Toini Pemmari
- Faculty of Medicine and Health Technology, Tampere University, 33520 Tampere, Finland
| | - Jaakko Laakso
- Faculty of Medicine and Health Technology, Tampere University, 33520 Tampere, Finland
| | - Maarit S Patrikainen
- Faculty of Medicine and Health Technology, Tampere University, 33520 Tampere, Finland
| | - Seppo Parkkila
- Faculty of Medicine and Health Technology, Tampere University, 33520 Tampere, Finland
- Fimlab Ltd., Tampere University Hospital, 33520 Tampere, Finland
| | - Tero A H Järvinen
- Faculty of Medicine and Health Technology, Tampere University, 33520 Tampere, Finland
- Department of Orthopedics and Traumatology, Tampere University Hospital, 33520 Tampere, Finland
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13
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Addis R, Cruciani S, Santaniello S, Bellu E, Sarais G, Ventura C, Maioli M, Pintore G. Fibroblast Proliferation and Migration in Wound Healing by Phytochemicals: Evidence for a Novel Synergic Outcome. Int J Med Sci 2020; 17:1030-1042. [PMID: 32410832 PMCID: PMC7211158 DOI: 10.7150/ijms.43986] [Citation(s) in RCA: 76] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 03/18/2020] [Indexed: 02/06/2023] Open
Abstract
Wound-healing is a dynamic skin reparative process that results in a sequence of events, including inflammation, proliferation, and migration of different cell types as fibroblasts. Fibroblasts play a crucial role in repairing processes, from the late inflammatory phase until the fully final epithelization of the injured tissue. Within this context, identifying tools able to implement cell proliferation and migration could improve tissue regeneration. Recently, plants species from all over the world are coming out as novel tools for therapeutic applications thanks to their phytochemicals, which have antioxidant properties and can promote wound healing. In this paper, we aimed at investigating antioxidant activity of waste extracts from different medicinal plants, endemic of the Mediterranean area, on fibroblast proliferation and wound healing. We determined the amount of total phenols and anti-oxidant activity by ABTS assay. We then evaluated the cytotoxicity of the compounds and the proliferative capabilities of fibroblasts by scratch assay. Our results showed that waste extracts retain antioxidant and regenerative properties, inducing tissue re-establishment after environmental stress exposure. Taken together, our findings suggest that waste material could be used in the future also in combinations to stimulate wound healing processes and antioxidant responses in damaged skin.
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Affiliation(s)
- Roberta Addis
- Department of Chemistry and Pharmacy, University of Sassari, Via F. Muroni 23/b, 07100, Sassari, Italy
| | - Sara Cruciani
- Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy
| | - Sara Santaniello
- Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy
| | - Emanuela Bellu
- Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy
| | - Giorgia Sarais
- Department of Life and Environmental Sciences, University of Cagliari, Via Ospedale 72, 09124 Cagliari, Italy
| | - Carlo Ventura
- Laboratory of Molecular Biology and Stem Cell Engineering, National Institute of Biostructures and Biosystems - Eldor Lab, Innovation Accelerator, Consiglio Nazionale delle Ricerche, Bologna, Italy
| | - Margherita Maioli
- Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy
- Laboratory of Molecular Biology and Stem Cell Engineering, National Institute of Biostructures and Biosystems - Eldor Lab, Innovation Accelerator, Consiglio Nazionale delle Ricerche, Bologna, Italy
- Center for Developmental Biology and Reprogramming (CEDEBIOR), Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy
- Istituto di Ricerca Genetica e Biomedica, Consiglio Nazionale delle Ricerche (CNR), Monserrato, 09042 Cagliari, Italy
| | - Giorgio Pintore
- Department of Chemistry and Pharmacy, University of Sassari, Via F. Muroni 23/b, 07100, Sassari, Italy
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14
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Zhao X, Liu L, An T, Xian M, Luckanagul JA, Su Z, Lin Y, Wang Q. A hydrogen sulfide-releasing alginate dressing for effective wound healing. Acta Biomater 2020; 104:85-94. [PMID: 31901456 DOI: 10.1016/j.actbio.2019.12.032] [Citation(s) in RCA: 73] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 12/25/2019] [Accepted: 12/27/2019] [Indexed: 01/04/2023]
Abstract
For wounds with heavy exudate levels, a dressing that can help to absorb wound exudate and improve the wound healing process is highly desired. Hydrogen sulfide (H2S) has been recognized as an important gasotransmitter that can improve angiogenesis which is crucial for wound healing. In this study, a functional sodium alginate (SA) dressing with H2S-releasing property (SA/JK-1) was fabricated by incorporating JK-1 molecule, a pH-dependent H2S donor, into SA sponge. The resultant SA/JK-1 sponge provided a moist and protective healing environment and was capable of releasing H2S consistently under acidic pH condition by absorbing exudate at the wound interface. The H2S release of JK-1 donor was prolonged by the SA sponge compared with JK-1 in solution. Cell study in vitro indicated that SA/JK-1 not only exhibited good cyto-compatibility, but also improved fibroblast proliferation and migration. In addition, the effects of the SA/JK-1 dressing on wound healing was evaluated using an in vivo full thickness dermal defect model, which revealed that SA/JK-1 can significantly improve wound healing process with enhanced granulation tissue formation, re-epithelialization, collagen deposition and angiogenesis, due to the H2S released from JK-1. Taken together, our results showed that SA dressing doped with H2S donor could potentially serves as an effective wound healing strategy. STATEMENT OF SIGNIFICANCE: The gasotransmitter H2S has been proven to improve the wound healing process in nanofibrous dressing due to its biological functions on angiogenesis. However, for non-healing wounds with heavy exudates, a wound dressing that can absorb wound exudates and controlled gasotransmitter release to improve the wound healing process is still in urgent need. Here we fabricated a sodium alginate (SA) sponge incorporated with H2S donor JK-1 (SA/JK-1), which showed strong water uptake capability, and released H2S under acidic condition. The SA/JK-1 sponge exhibited biocompatibility to fibroblasts and promoted cell migration in vitro, and exhibited obviously positive influence on wound healing in vivo. This H2S donor doped alginate wound dressing represents a promising strategy for treatment of non-healing wound.
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Affiliation(s)
- Xia Zhao
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, Jilin 130022, PR China
| | - Lin Liu
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, Jilin 130022, PR China; College of Life Science, Northeast Forestry University, Harbin 150040, PR China
| | - Tiezhu An
- College of Life Science, Northeast Forestry University, Harbin 150040, PR China.
| | - Ming Xian
- Department of Chemistry, Washington State University, Pullman, WA 99164, United States
| | - Jittima Amie Luckanagul
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmaceutical Sciences, Chulalongkorn University, 254 Phayathai Rd., Wangmai, Pathumwan, Bangkok 10330, Thailand
| | - Zhaohui Su
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, Jilin 130022, PR China
| | - Yuan Lin
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, Jilin 130022, PR China.
| | - Qian Wang
- Department of Chemistry and Biochemistry, University of South Carolina, 631 Sumter Street, Columbia, South Carolina 29208, United States
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15
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Figueiredo FDF, Cechinel Filho V, Damazo AS, Arunachalam K, Colodel EM, Ribeiro M, Venturini CL, Oliveira DM, Machado MTM, Pavan E, Paes RL, Tenfen A, Almeida PODA, Siebert DA, Vitali L, Macho A, Martins DTDO. Sorocea guilleminiana Gaudich.: Wound healing activity, action mechanisms, and chemical characterization of the leaf infusion. J Ethnopharmacol 2020; 248:112307. [PMID: 31629026 DOI: 10.1016/j.jep.2019.112307] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Revised: 08/28/2019] [Accepted: 10/12/2019] [Indexed: 06/10/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Sorocea guilleminina Gaudich. is a tree or shrub endemic to Brazil. Its leaves are used in Brazilian folk medicine for the healing of wounds, stomach problems, inflammation and as diuretic. The present study evaluates the activity and action mechanisms of the healing properties of the aqueous extract of S. guilleminiana leaves (AESg), in experimental models in vivo and in vitro, as well as performs a phytochemical analysis of the extract. MATERIALS AND METHODS The AESg was prepared by infusion: Ten g of dry leaves powder in 1 L hot water, soaked for 15 min, filtered, lyophilized, and stored at -30 °C. Phytochemical analyses were realized by colorimetry and HPLC/ESI/MS. Its' in vitro cytotoxicity was evaluated on fibroblastic N3T3 cells. The potential of the wound healing activity in vivo was evaluated using excision and incision wound rat models, by histopathology of the injured skin along with the determination of nitric oxide, cytokines (IL-1β, IL-10, and TNF-α), and antioxidant parameters (GSH, MPO and CAT). In vitro wound healing activity was also demonstrated in scratched N3T3 cells, by measuring the proliferation/migration rate. RESULTS The phytochemical analysis of the AESg revealed a strong presence of polar compounds, especially flavonoids (4 majoritarian), as well as terpenes and/or sterols (2 majoritarian). The AESg showed no toxicity in the N3T3 cell line (IC50 > 800 μg/mL). Topical treatment with the AESg showed an increase (p < 0.05) in wound contraction with 2 mg/g cream on days 5 and 9 (43.56% and 6.70% increase, respectively), and with 50 mg/g on days 7 and 9 (10.88% and 7.91%, respectively), compared to the vehicle (non-ionic neutral cream). Topical application of AESg (2 or 50 mg/g non-ionic cream) in incised wounds caused an increase in the force necessary for the rupture of the wound when compared to the vehicle group. No changes in cytokines (IL-1β, IL-10, or TNF-α) or NO accumulation was found with up to 50 mg/g AESg treatment. For antioxidant activity on the incision wound, an increase in GSH levels was denoted with the AESg use, at the lowest and highest dose (2 and 50 mg/g) by 75.86% and 61.20% respectively, when compared to the vehicle. Also, the CAT activity was accentuated by AESg at the highest dose (50 mg/g) by 85.87%. Finally, the AESg at all doses attenuated MPO activity significantly in the incision wound by 71.35%, 73.21%, 78.08%, respectively. In the scratch test on N3T3 cells, the treatment with AESg resulted also in an increase in fibroblast proliferation/migration rate, compared to the vehicle. CONCLUSION AESg is not cytotoxic. The results confirm the popular use of the leaf infusion of S. guilleminiana for the treatment of cutaneous wounds, possibly by stimulating the proliferation of fibroblasts with a consequent deposition of collagen, fastening rearrangement of collagen fibers, and greater transformation into myofibroblasts, essential in the healing process. Preliminary chemical analyzes of AESg revealed the presence mainly of phenolic compounds, being salicylic acid, gallic acid, pinocembrin and isoquercitrin the majoritarian ones.
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Affiliation(s)
- Fabiana de Freitas Figueiredo
- Área de Farmacologia, Departamento de Ciências Básicas em Saúde, Faculdade de Medicina, Universidade Federal de Mato Grosso (UFMT), Cuiabá, MT, Brazil
| | - Valdir Cechinel Filho
- Departamento de Farmácia, Universidade do Vale do Itajaí (UNIVALI), Campus do Litoral Centro-Norte, Itajaí, SC, Brazil
| | - Amilcar Sabino Damazo
- Laboratório de Histologia, Departamento de Ciências Básicas em Saúde, Faculdade de Medicina, Universidade Federal de Mato Grosso (UFMT), Cuiabá, MT, Brazil
| | - Karuppusamy Arunachalam
- Área de Farmacologia, Departamento de Ciências Básicas em Saúde, Faculdade de Medicina, Universidade Federal de Mato Grosso (UFMT), Cuiabá, MT, Brazil
| | - Edson Moleta Colodel
- Área de Patologia, Laboratório de Patologia Veterinária (LPV), Hospital Veterinário, Universidade Federal de Mato Grosso (UFMT), Cuiabá, MT, Brazil
| | - Marlon Ribeiro
- Área de Patologia, Laboratório de Patologia Veterinária (LPV), Hospital Veterinário, Universidade Federal de Mato Grosso (UFMT), Cuiabá, MT, Brazil
| | - Claudio Luis Venturini
- Área de Farmacologia, Departamento de Ciências Básicas em Saúde, Faculdade de Medicina, Universidade Federal de Mato Grosso (UFMT), Cuiabá, MT, Brazil
| | - Darley Maria Oliveira
- Área de Farmacologia, Departamento de Ciências Básicas em Saúde, Faculdade de Medicina, Universidade Federal de Mato Grosso (UFMT), Cuiabá, MT, Brazil
| | - Marco Tulio Marra Machado
- Área de Farmacologia, Departamento de Ciências Básicas em Saúde, Faculdade de Medicina, Universidade Federal de Mato Grosso (UFMT), Cuiabá, MT, Brazil
| | - Eduarda Pavan
- Área de Farmacologia, Departamento de Ciências Básicas em Saúde, Faculdade de Medicina, Universidade Federal de Mato Grosso (UFMT), Cuiabá, MT, Brazil
| | - Raira Luiza Paes
- Área de Farmacologia, Departamento de Ciências Básicas em Saúde, Faculdade de Medicina, Universidade Federal de Mato Grosso (UFMT), Cuiabá, MT, Brazil
| | - Adrielli Tenfen
- Departamento de Farmácia, Universidade do Vale do Itajaí (UNIVALI), Campus do Litoral Centro-Norte, Itajaí, SC, Brazil
| | - Paulo Othavio de Araujo Almeida
- Área de Farmacologia, Departamento de Ciências Básicas em Saúde, Faculdade de Medicina, Universidade Federal de Mato Grosso (UFMT), Cuiabá, MT, Brazil
| | | | - Luciano Vitali
- Departamento de Química, Universidade Federal de Santa Catarina, Florianópolis, SC, Brazil
| | - Antonio Macho
- Área de Farmacologia, Departamento de Ciências Básicas em Saúde, Faculdade de Medicina, Universidade Federal de Mato Grosso (UFMT), Cuiabá, MT, Brazil; Programa de Pós-Graduação em Ciências Médicas, Universidade de Brasília (UnB), Brasília, DF, Brazil
| | - Domingos Tabajara de Oliveira Martins
- Área de Farmacologia, Departamento de Ciências Básicas em Saúde, Faculdade de Medicina, Universidade Federal de Mato Grosso (UFMT), Cuiabá, MT, Brazil.
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Torre E, Giasafaki D, Steriotis T, Cassinelli C, Morra M, Fiorilli S, Vitale-Brovarone C, Charalambopoulou G, Iviglia G. Silver Decorated Mesoporous Carbons for the Treatment of Acute and Chronic Wounds, in a Tissue Regeneration Context. Int J Nanomedicine 2019; 14:10147-10164. [PMID: 32021158 PMCID: PMC6942531 DOI: 10.2147/ijn.s234393] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Accepted: 12/03/2019] [Indexed: 12/15/2022] Open
Abstract
INTRODUCTION Silver decorated mesoporous carbons are interesting systems that may offer effective solutions for advanced wound care products by combining the well-known anti-microbial activity of silver nanoparticles with the versatile properties of ordered mesoporous carbons. Silver is being used as a topical antimicrobial agent, especially in wound repair. However, while silver shows bactericidal properties, it is also cytotoxic at high concentrations. Therefore, the incorporation of silver into ordered mesoporous carbons allows to exploit both silver's biological effects and mesoporous carbons' biocompatibility and versatility with the purpose of conceiving silver-doped materials in light of the growing health concern in wound care. METHODS The wound healing potential of an ordered mesoporous carbon also doped with two different loadings of silver nanoparticles (2 wt% and 10 wt%), was investigated through a biological assessment study based on different assays (cell viability, inflammation, antibacterial tests, macrophage-conditioned fibroblast and human keratinocyte cell cultures). RESULTS The results show silver-doped ordered mesoporous carbons to positively condition cell viability, with a cell viability percentage >70% even for 10 wt% Ag, to modulate the expression of inflammatory cytokines and of genes involved in tissue repair (KRT6a, VEGFA, IVN) and remodeling (MMP9, TIMP3) in different cell systems. Furthermore, along with the biocompatibility and the bioactivity, the silver-doped ordered mesoporous carbons still retain an antibacterial effect, as shown by a maximum of 13.1% of inhibited area in the Halo test. The obtained results clearly showed that the silver-doped ordered mesoporous carbons exhibit both good biocompatibility and antibacterial effect with enhanced re-epithelialization, angiogenesis promotion and tissue regeneration. DISCUSSION These findings suggest that the exceptional properties of silver-doped ordered mesoporous carbons could be exploited in the treatment of acute and chronic wounds and that such carbon materials could be potential candidates for use in medical devices for wound healing purposes, in particular, the 10 wt% loading, as the results showed to be the most effective.
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Affiliation(s)
- Elisa Torre
- Nobil Bio Ricerche Srl, Portacomaro14037, AT, Italy
| | - Dimitra Giasafaki
- National Center for Scientific Research “Demokritos”, Athens15341, Greece
| | - Theodore Steriotis
- National Center for Scientific Research “Demokritos”, Athens15341, Greece
| | | | - Marco Morra
- Nobil Bio Ricerche Srl, Portacomaro14037, AT, Italy
| | - Sonia Fiorilli
- Department of Applied Science and Technology, Politecnico di Torino, Torino, Italy
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Daemi A, Lotfi M, Farahpour MR, Oryan A, Ghayour SJ, Sonboli A. Topical application of Cinnamomum hydroethanolic extract improves wound healing by enhancing re-epithelialization and keratin biosynthesis in streptozotocin-induced diabetic mice. Pharm Biol 2019; 57:799-806. [PMID: 31760838 PMCID: PMC6882457 DOI: 10.1080/13880209.2019.1687525] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 08/30/2019] [Accepted: 10/27/2019] [Indexed: 05/19/2023]
Abstract
Context: Cinnamomum verum J. Presl. (Lauraceae) has a high number of polyphenols with insulin-like activity, increases glucose utilization in animal muscle, and might be beneficial for diabetic patients.Objective: This study evaluated the effectiveness of an ointment prepared from Cinnamomum verum hydroethanolic extract on wound healing in diabetic mice.Materials and methods: A total of 54 male BALB/c mice were divided into three groups: (1) diabetic non-treated group mice that were treated with soft yellow paraffin, (2 and 3) mice that were treated with 5 and 10% C. verum. Two circular full-thickness excisional wounds were created in each mouse, and the trial lasted for 16 d following induction of the wound. Further evaluation was made on the wound contraction ratio, histopathology parameters and mRNA levels of cyclin D1, insulin-like growth factor 1 (IGF-1), glucose transporter-1 (GLUT-1), total antioxidant capacity, and malondialdehyde of granulation tissue contents. HPLC apparatus was utilized to identify the compounds.Results: The HPLC data for cinnamon hydroethanolic extract identified cinnamaldehyde (11.26%) and 2-hydroxyl cinnamaldehyde (6.7%) as the major components. A significant increase was observed in wound contraction ratio, fibroblast proliferation, collagen deposition, re-epithelialization and keratin biosynthesis in the C. verum-treated groups in comparison to the diabetic non-treated group (p < 0.05). The expression level of cyclin D1, IGF1, GLUT 1 and antioxidant capacity increased in the C. verum-treated groups in comparison to the diabetic non-treated group (p < 0.05).Conclusions: Topical administration of C. verum accelerated wound healing and can possibly be employed in treating the wounds of diabetic patients.
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Affiliation(s)
- Amin Daemi
- Department of Medical Biochemistry, Faculty of Medicine, Cukurova University, Adana, Turkey
| | - Mahsa Lotfi
- Faculty of Pharmacy, Tabriz university of Medical Sciences, Tabriz, Iran
| | - Mohammad Reza Farahpour
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Urmia Branch, Islamic Azad University, Urmia, Iran
- CONTACT Mohammad Reza Farahpour Department of Clinical Sciences, Faculty of Veterinary Medicine, Urmia Branch, Islamic Azad University, Urmia, 57159-44867, Iran
| | - Ahmad Oryan
- Department of Pathology, School of Veterinary Medicine, Shiraz University, Shiraz, Iran
| | - Sina Jangkhahe Ghayour
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Urmia Branch, Islamic Azad University, Urmia, Iran
| | - Ali Sonboli
- Department of Biology, Medicinal Plants and Drugs Research Institute, Shahid Beheshti University, G.C. Evin, Tehran
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Vorotelyak EA, Malchenko LA, Rogovaya OS, Lazarev DS, Butorina NN, Brodsky VY. Melatonin Stimulates Epithelium Migration in Wound Models In Vitro and In Vivo. Bull Exp Biol Med 2019; 168:242-246. [PMID: 31776954 DOI: 10.1007/s10517-019-04683-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Indexed: 12/11/2022]
Abstract
We studied the effect of bovine brain gangliosides, individual ganglioside GM1, and melatonin on the rate of wound closure under in vitro conditions and the effect of melatonin on the rate of wound healing under in vivo conditions. It was shown that bovine brain gangliosides and melatonin reliably increased cell migration in the experimental wound model. This effect was detected when the cell cultures were treated with the test preparations after wound infliction and when the cultures of human keratinocytes were pretreated before wounding. Analysis of the effect of melatonin on the rate of wound healing in vivo showed that melatonin accelerated this process, especially at the middle stages corresponding to the proliferation phase (days 3-6 after surgery). Histological analysis revealed intensification of epidermal cell proliferation at the edges of the wound starting from day 4 after surgery.
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Affiliation(s)
- E A Vorotelyak
- N. K. Koltsov Institute of Developmental Biology, Russian Academy of Sciences, Moscow, Russia.
| | - L A Malchenko
- N. K. Koltsov Institute of Developmental Biology, Russian Academy of Sciences, Moscow, Russia
| | - O S Rogovaya
- N. K. Koltsov Institute of Developmental Biology, Russian Academy of Sciences, Moscow, Russia
| | - D S Lazarev
- N. I. Pirogov Russian National Research Medical University, Ministry of Health of the Russian Federation, Moscow, Russia
| | - N N Butorina
- N. K. Koltsov Institute of Developmental Biology, Russian Academy of Sciences, Moscow, Russia
| | - V Y Brodsky
- N. K. Koltsov Institute of Developmental Biology, Russian Academy of Sciences, Moscow, Russia
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Lombardi F, Palumbo P, Mattei A, Augello FR, Cifone MG, Giuliani M, Cinque B. Soluble Fraction from Lysates of Selected Probiotic Strains Differently Influences Re-Epithelialization of HaCaT Scratched Monolayer through a Mechanism Involving Nitric Oxide Synthase 2. Biomolecules 2019; 9:biom9120756. [PMID: 31766379 PMCID: PMC6995614 DOI: 10.3390/biom9120756] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Revised: 11/15/2019] [Accepted: 11/19/2019] [Indexed: 12/27/2022] Open
Abstract
A growing body of evidence supports the use of probiotics in the treatment of several skin conditions, including wounds. Even if in vitro and in vivo studies have highlighted the pro-healing effects of some probiotic bacteria, the underlying mechanisms are still not fully defined. The current investigation aimed to determine the re-epithelialization potential of the soluble fraction from lysate of seven different probiotic strains belonging to different genera (i.e., Streptococcus, Lactobacillus, and Bifidobacterium) on in vitro physically wounded HaCaT monolayer model. The results suggested that the soluble fraction of S. thermophilus, L. plantarum, and L. acidophilus promoted the re-epithelialization of scratched HaCaT monolayers, whereas those from B. longum, B. infantis, and B. breve significantly inhibited the process. On the other hand, L. bulgaricus showed no significant effect on in vitro wound repair. The mechanisms underlying the pro- or anti-healing properties of selected bacterial strains strictly and positively correlated with their ability to modulate nitric oxide synthase 2 (NOS2) expression and activity. Accordingly, the pre-treatment with aminoguanidine (AG), a specific inhibitor of NOS2 activity, abrogated the pro-healing effects of S. thermophilus, L. plantarum, and L. acidophilus.
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Affiliation(s)
- Francesca Lombardi
- Department of Life, Health & Environmental Sciences, University of L’Aquila, Building Delta 6, Coppito, 67100 L’Aquila, Italy; (F.L.); (P.P.); (A.M.); (F.R.A.); (M.G.C.); (M.G.)
| | - Paola Palumbo
- Department of Life, Health & Environmental Sciences, University of L’Aquila, Building Delta 6, Coppito, 67100 L’Aquila, Italy; (F.L.); (P.P.); (A.M.); (F.R.A.); (M.G.C.); (M.G.)
| | - Antonella Mattei
- Department of Life, Health & Environmental Sciences, University of L’Aquila, Building Delta 6, Coppito, 67100 L’Aquila, Italy; (F.L.); (P.P.); (A.M.); (F.R.A.); (M.G.C.); (M.G.)
| | - Francesca Rosaria Augello
- Department of Life, Health & Environmental Sciences, University of L’Aquila, Building Delta 6, Coppito, 67100 L’Aquila, Italy; (F.L.); (P.P.); (A.M.); (F.R.A.); (M.G.C.); (M.G.)
| | - Maria Grazia Cifone
- Department of Life, Health & Environmental Sciences, University of L’Aquila, Building Delta 6, Coppito, 67100 L’Aquila, Italy; (F.L.); (P.P.); (A.M.); (F.R.A.); (M.G.C.); (M.G.)
| | - Maurizio Giuliani
- Department of Life, Health & Environmental Sciences, University of L’Aquila, Building Delta 6, Coppito, 67100 L’Aquila, Italy; (F.L.); (P.P.); (A.M.); (F.R.A.); (M.G.C.); (M.G.)
- Unit of Plastic and Reconstructive Surgery, Casa di Cura “Di Lorenzo” SrL, Via Vittorio Veneto 37, Avezzano, 67051 L’Aquila, Italy
| | - Benedetta Cinque
- Department of Life, Health & Environmental Sciences, University of L’Aquila, Building Delta 6, Coppito, 67100 L’Aquila, Italy; (F.L.); (P.P.); (A.M.); (F.R.A.); (M.G.C.); (M.G.)
- Correspondence: ; Tel.: +39-0862-433-553
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Suárez-Barrio C, Etxebarria J, Hernáez-Moya R, Del Val-Alonso M, Rodriguez-Astigarraga M, Urkaregi A, Freire V, Morales MC, Durán JA, Vicario M, Molina I, Herrero-Vanrell R, Andollo N. Hyaluronic Acid Combined with Serum Rich in Growth Factors in Corneal Epithelial Defects. Int J Mol Sci 2019; 20:ijms20071655. [PMID: 30987108 PMCID: PMC6480555 DOI: 10.3390/ijms20071655] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Revised: 03/29/2019] [Accepted: 03/30/2019] [Indexed: 12/30/2022] Open
Abstract
The aim of this study is to assess if an adhesive biopolymer, sodium hyaluronate (NaHA), has synergistic effects with s-PRGF (a serum derived from plasma rich in growth factors and a blood derivative that has already shown efficacy in corneal epithelial wound healing), to reduce time of healing or posology. In vitro proliferation and migration studies, both in human corneal epithelial (HCE) cells and in rabbit primary corneal epithelial (RPCE) cultures, were carried out. In addition, we performed studies of corneal wound healing in vivo in rabbits treated with s-PRGF, NaHA, or the combination of both. We performed immunohistochemistry techniques (CK3, CK15, Ki67, ß4 integrin, ZO-1, α-SMA) in rabbit corneas 7 and 30 days after a surgically induced epithelial defect. In vitro results show that the combination of NaHA and s-PRGF offers the worst proliferation rates in both HCE and RPCE cells. Addition of NaHA to s-PRGF diminishes the re-epithelializing capability of s-PRGF. In vivo, all treatments, given twice a day, showed equivalent efficacy in corneal epithelial healing. We conclude that the combined use of s-PRGF and HaNA as an adhesive biopolymer does not improve the efficacy of s-PRGF alone in the wound healing of corneal epithelial defects.
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Affiliation(s)
- Carlota Suárez-Barrio
- Department of Cell Biology and Histology, School of Medicine and Nursing, University of the Basque Country, BioCruces Health Research Institute, Begiker, 48940 Leioa, Spain.
| | - Jaime Etxebarria
- Department of Cell Biology and Histology, School of Medicine and Nursing, University of the Basque Country, BioCruces Health Research Institute, Begiker, 48940 Leioa, Spain.
- Department of Ophthalmology, University Hospital of Cruces, BioCruces Health Research Institute, Begiker, 48903 Barakaldo, Spain.
| | - Raquel Hernáez-Moya
- Department of Cell Biology and Histology, School of Medicine and Nursing, University of the Basque Country, BioCruces Health Research Institute, Begiker, 48940 Leioa, Spain.
| | - Marina Del Val-Alonso
- Department of Cell Biology and Histology, School of Medicine and Nursing, University of the Basque Country, BioCruces Health Research Institute, Begiker, 48940 Leioa, Spain.
| | - Maddalen Rodriguez-Astigarraga
- Department of Cell Biology and Histology, School of Medicine and Nursing, University of the Basque Country, BioCruces Health Research Institute, Begiker, 48940 Leioa, Spain.
| | - Arantza Urkaregi
- Department of Applied Mathematics and Statistics and Operational Research, BioCruces Health Research Institute, 48940 Leioa, Spain.
| | - Vanesa Freire
- Department of Cell Biology and Histology, School of Medicine and Nursing, University of the Basque Country, BioCruces Health Research Institute, Begiker, 48940 Leioa, Spain.
- R & D Department, Instituto Clínico-Quirúrgico de Oftalmología, 48006 Bilbao, Spain.
| | - María-Celia Morales
- Department of Cell Biology and Histology, School of Medicine and Nursing, University of the Basque Country, BioCruces Health Research Institute, Begiker, 48940 Leioa, Spain.
| | - Juan Antonio Durán
- R & D Department, Instituto Clínico-Quirúrgico de Oftalmología, 48006 Bilbao, Spain.
- Department of Dermatology, Otorhinolaryngology and Ophthalmology, School of Medicine and Nursing, University of the Basque Country, BioCruces Health Research Institute, Begiker, 48940 Leioa, Spain.
| | - Marta Vicario
- Pharmaceutical Innovation in Ophthalmology (InnOftal) UCM Research Group 920415. Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Complutense University, 28040 Madrid, Spain.
| | - Irene Molina
- Pharmaceutical Innovation in Ophthalmology (InnOftal) UCM Research Group 920415. Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Complutense University, 28040 Madrid, Spain.
| | - Rocío Herrero-Vanrell
- Pharmaceutical Innovation in Ophthalmology (InnOftal) UCM Research Group 920415. Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Complutense University, 28040 Madrid, Spain.
| | - Noelia Andollo
- Department of Cell Biology and Histology, School of Medicine and Nursing, University of the Basque Country, BioCruces Health Research Institute, Begiker, 48940 Leioa, Spain.
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Zhang GY, Langan EA, Meier NT, Funk W, Siemers F, Paus R. Thyroxine (T4) may promote re-epithelialisation and angiogenesis in wounded human skin ex vivo. PLoS One 2019; 14:e0212659. [PMID: 30925152 PMCID: PMC6440638 DOI: 10.1371/journal.pone.0212659] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Accepted: 02/07/2019] [Indexed: 12/18/2022] Open
Abstract
There is a pressing need for improved preclinical model systems in which to study human skin wound healing. Here, we report the development and application of a serum-free full thickness human skin wound healing model. Not only can re-epithelialization (epidermal repair) and angiogenesis be studied in this simple and instructive model, but the model can also be used to identify clinically relevant wound-healing promoting agents, and to dissect underlying candidate mechanisms of action in the target tissue. We present preliminary ex vivo data to suggest that Thyroxine (T4), which reportedly promotes skin wound healing in rodents in vivo, may promote key features of human skin wound healing. Namely, T4 stimulates re-epithelialisation and angiogenesis, and modulates both wound healing-associated epidermal keratin expression and energy metabolism in experimentally wound human skin. Functionally, the wound healing-promoting effects of T4 are at least partially mediated via fibroblast growth factor/fibroblast growth factor receptor-mediated signalling, since they could be significantly antagonized by bFGF-neutralizing antibody. Thus, this pragmatic, easy-to-use full-thickness human skin wound healing model provides a useful preclinical research tool in the search for clinically relevant candidate wound healing-promoting agents. These ex vivo data encourage further pre-clinical testing of topical T4 as a cost-efficient, novel agent in the management of chronic human skin wounds.
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Affiliation(s)
- Guo-You Zhang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Ewan A. Langan
- Department of Dermatology, University of Lübeck, Lübeck, Germany
- Centre for Dermatology Research, University of Manchester, and NIHR Manchester Biomedical Research Centre, Manchester, United Kingdom
| | | | | | - Frank Siemers
- Department of Plastic and Hand Surgery, BG Klinikum Bergmannstrost, Halle/Salle, Germany
| | - Ralf Paus
- Department of Dermatology & Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, Florida, United States of America
- Centre for Dermatology Research, University of Manchester, and NIHR Manchester Biomedical Research Centre, Manchester, United Kingdom
- * E-mail:
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Cheung T, Laidley Z, Jones J, Wu S. Outcomes of an Esterified Hyaluronic Acid Matrix in the Treatment of Chronic Lower Extremity Wounds: A Case Series. Wounds 2018; 30:367-371. [PMID: 30507547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
OBJECTIVE This case series evaluates the outcomes of persons with chronic lower extremity wounds treated with an esterified hyaluronic acid matrix (EHAM). MATERIALS AND METHODS Data were abstracted from 12 consecutive patients with a total of 14 evaluated chronic wounds (12 [100%] men, mean age 58.72 years) presenting for care at a multidisciplinary wound care center. Nine of the 12 patients had diabetes. The mean wound duration was 39.2 weeks. All patients received surgical wound debridement and were started on therapy consisting of weekly to biweekly applications of the EHAM with a nonadherent, moisture-retentive dressing until complete epithelialization was achieved. Outcomes evaluated included time to complete wound closure and proportion of patients achieving wound closure in 20 weeks. RESULTS In total, 85.7% of wounds measuring a mean of 2.32 cm2 healed in the 20-week evaluation period. Of those that healed, healing took place in a mean of 8.9 weeks. CONCLUSIONS A regimen of moist wound healing using an EHAM, which provides a scaffold for in-growing cells, may be a useful adjunct in the treatment of chronic, noninfected, nonischemic wounds.
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Affiliation(s)
- Timothy Cheung
- Dr. William M. Scholl College of Podiatric Medicine, Rosalind Franklin University of Medicine and Science, North Chicago, IL
| | - Zachary Laidley
- Dr. William M. Scholl College of Podiatric Medicine, Rosalind Franklin University of Medicine and Science, North Chicago, IL
| | - Jacob Jones
- Dr. William M. Scholl College of Podiatric Medicine, Rosalind Franklin University of Medicine and Science, North Chicago, IL
| | - Stephanie Wu
- Center for Lower Extremity Ambulatory Research (CLEAR), Dr. William M. Scholl College of Podiatric Medicine, Rosalind Franklin University of Medicine and Science, North Chicago, IL
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Game F, Jeffcoate W, Tarnow L, Jacobsen JL, Whitham DJ, Harrison EF, Ellender SJ, Fitzsimmons D, Löndahl M. LeucoPatch system for the management of hard-to-heal diabetic foot ulcers in the UK, Denmark, and Sweden: an observer-masked, randomised controlled trial. Lancet Diabetes Endocrinol 2018; 6:870-878. [PMID: 30243803 DOI: 10.1016/s2213-8587(18)30240-7] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Revised: 07/30/2018] [Accepted: 07/31/2018] [Indexed: 01/13/2023]
Abstract
BACKGROUND The LeucoPatch device uses bedside centrifugation without additional reagents to generate a disc comprising autologous leucocytes, platelets, and fibrin, which is applied to the surface of the wound. We aimed to test the effectiveness of LeucoPatch on the healing of hard-to-heal foot ulcers in people with diabetes. METHODS This was a multicentre, international, observer-masked, randomised controlled trial of people with diabetes and a hard-to-heal foot ulcer done in 32 specialist diabetic foot clinics in three countries (UK, Denmark, and Sweden). After a 4-week run-in period, those with a reduction in ulcer area of less than 50% were randomly allocated (1:1) by computer-generated, web-based randomisation (block sizes of two, four, and six) to either prespecified good standard care alone or care plus weekly application of LeucoPatch. The primary outcome was the proportion of ulcers that healed within 20 weeks assessed in the intention-to-treat population (all participants with post-randomisation data collected), defined as complete epithelialisation (confirmed by an observer who was masked to randomisation group), and remained healed for 4 weeks. This trial is registered with the ISRCTN registry, number 27665670, and ClinicalTrials.gov, number NCT02224742. FINDINGS Between Aug 30, 2013, and May 3, 2017, 269 participants were randomly allocated to receive treatment (137 to receive standard care and 132 to receive LeucoPatch). The mean age was 61·9 years (SD 11·6), 217 (82%) were men, and 222 (83%) had type 2 diabetes. In the LeucoPatch group, 45 (34%) of 132 ulcers healed within 20 weeks versus 29 (22%) of 134 ulcers in the standard care group (odds ratio 1·58, 96% CI 1·04-2·40; p=0·0235) by intention-to-treat analysis. Time to healing was shorter in the LeucoPatch group (p=0·0246) than in the standard care group. No difference in adverse events was seen between the groups. The most common serious adverse event (SAE) was diabetic foot infection (24 events in the LeucoPatch group [24% of all SAEs] and 20 in the standard care group [27% of all SAEs]. There were no device-related adverse events. INTERPRETATION The use of LeucoPatch is associated with significant enhancement of healing of hard-to-heal foot ulcers in people with diabetes. FUNDING Reapplix ApS.
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Affiliation(s)
- Frances Game
- Department of Diabetes and Endocrinology, Derby Teaching Hospitals NHS Foundation Trust, Derby, UK.
| | - William Jeffcoate
- Department of Diabetes and Endocrinology, Nottingham University Hospitals Trust, Nottingham, UK
| | - Lise Tarnow
- Steno Diabetes Center Zealand, Holbaek Sygehus, Holbaek, Denmark; Department of Clinical Research, Nordsjaellands Hospital, Hillerød, Denmark
| | - Judith L Jacobsen
- Statcon ApS, Kokkedal, Denmark; Department of Biostatistics, University of Copenhagen, Copenhagen, Denmark
| | - Diane J Whitham
- Nottingham Clinical Trials Unit, School of Medicine, University of Nottingham, Nottingham, UK
| | - Eleanor F Harrison
- Nottingham Clinical Trials Unit, School of Medicine, University of Nottingham, Nottingham, UK
| | - Sharon J Ellender
- Nottingham Clinical Trials Unit, School of Medicine, University of Nottingham, Nottingham, UK
| | | | - Magnus Löndahl
- Department of Endocrinology, Skane University Hospital, Lund, Sweden; Department of Clinical Sciences, Lund, Lund University
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Périco LL, Rodrigues VP, Ohara R, Bueno G, Nunes VVA, dos Santos RC, Camargo ACL, Júnior LAJ, de Andrade SF, Steimbach VMB, da Silva LM, da Rocha LRM, Vilegas W, dos Santos C, Hiruma-Lima CA. Sex-specific effects of Eugenia punicifolia extract on gastric ulcer healing in rats. World J Gastroenterol 2018; 24:4369-4383. [PMID: 30344421 PMCID: PMC6189849 DOI: 10.3748/wjg.v24.i38.4369] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 07/11/2018] [Accepted: 08/01/2018] [Indexed: 02/06/2023] Open
Abstract
AIM To evaluate the sex-specific effects of a hydroalcoholic extract from Eugenia punicifolia (HEEP) leaves on gastric ulcer healing.
METHODS In this rat study involving males, intact (cycling) females, and ovariectomized females, gastric ulcers were induced using acetic acid. A vehicle, lansoprazole, or HEEP was administered for 14 d after ulcer induction. Body weight was monitored throughout the treatment period. At the end of treatment, the rats were euthanized and the following in vivo and in vitro investigations were performed: macroscopic examination of the lesion area and organ weights, biochemical analysis, zymography, and evaluation of protein expression levels. Additionally, the concentration-dependent effect of HEEP was evaluated in terms of subacute toxicity and cytotoxicity.
RESULTS Compared to the vehicle, HEEP demonstrated a great healing capacity by substantially reducing the ulcerative lesion area in males (52.44%), intact females (85.22%), and ovariectomized females (65.47%), confirming that HEEP accelerates the healing of acetic acid-induced gastric lesions and suggesting that this effect is modulated by female sex hormones. The antiulcer effect of HEEP was mediated by prostaglandin E2 only in male rats. Overall, the beneficial effect of HEEP was the highest in intact females. Notably, HEEP promoted the expression of vascular endothelial growth factor (intact vs ovariectomized females) and decreased the expression of Caspase-8 and Bcl-2 (intact female vs male or ovariectomized female). Additionally, HEEP enhanced fibroblast proliferation and migration into a wounded area in vitro, confirming its healing effect. Finally, no sign of subacute toxicity or cytotoxicity of HEEP was observed.
CONCLUSION In gastric ulcers, HEEP-induced healing (modulated by female sex hormones; in males, mediated by prostaglandin) involves extracellular matrix remodeling, with gastric mucosa cell proliferation and migration.
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Affiliation(s)
- Larissa Lucena Périco
- Department of Physiology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu 18618-970, São Paulo, Brazil
| | - Vinícius Peixoto Rodrigues
- Department of Physiology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu 18618-970, São Paulo, Brazil
| | - Rie Ohara
- Department of Physiology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu 18618-970, São Paulo, Brazil
| | - Gabriela Bueno
- Department of Physiology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu 18618-970, São Paulo, Brazil
| | - Vânia Vasti Alfieri Nunes
- Department of Physiology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu 18618-970, São Paulo, Brazil
| | - Raquel Cássia dos Santos
- Laboratory of Bioactive Compounds, São Francisco University, Bragança Paulista 12916-900, São Paulo, Brazil
| | - Ana Carolina Lima Camargo
- Department of Morphology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu 18618-970, São Paulo, Brazil
| | - Luis Antônio Justulin Júnior
- Department of Morphology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu 18618-970, São Paulo, Brazil
| | - Sérgio Faloni de Andrade
- Programa de Pós-graduação em Ciências Farmacêuticas, Núcleo de Investigações Químico-Farmacêuticas (NIQFAR), Universidade do Vale do Itajaí - UNIVALI, Itajaí 88302-901, Santa Catarina, Brazil
| | - Viviane Miranda Bispo Steimbach
- Programa de Pós-graduação em Ciências Farmacêuticas, Núcleo de Investigações Químico-Farmacêuticas (NIQFAR), Universidade do Vale do Itajaí - UNIVALI, Itajaí 88302-901, Santa Catarina, Brazil
| | - Luísa Mota da Silva
- Programa de Pós-graduação em Ciências Farmacêuticas, Núcleo de Investigações Químico-Farmacêuticas (NIQFAR), Universidade do Vale do Itajaí - UNIVALI, Itajaí 88302-901, Santa Catarina, Brazil
| | - Lúcia Regina Machado da Rocha
- Department of Physiology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu 18618-970, São Paulo, Brazil
| | - Wagner Vilegas
- Coastal Campus of São Vicente, São Paulo State University (UNESP), São Vicente 11330-900, São Paulo, Brazil
| | - Catarina dos Santos
- Department of Biological Science, Faculty of Sciences and Languages, São Paulo State University (UNESP), Assis 19806-900, São Paulo, Brazil
| | - Clélia Akiko Hiruma-Lima
- Department of Physiology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu 18618-970, São Paulo, Brazil
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Stone R, Wall JT, Natesan S, Christy RJ. PEG-Plasma Hydrogels Increase Epithelialization Using a Human Ex Vivo Skin Model. Int J Mol Sci 2018; 19:ijms19103156. [PMID: 30322172 PMCID: PMC6213988 DOI: 10.3390/ijms19103156] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Revised: 10/06/2018] [Accepted: 10/12/2018] [Indexed: 12/27/2022] Open
Abstract
In vitro cell culture methods are used extensively to study cellular migration, proliferation, and differentiation, which play major roles in wound healing but the results often do not translate to the in vivo environment. One alternative would be to establish an ex vivo model utilizing human discarded skin to evaluate therapies in a more natural setting. The purpose of this study was to institute such a model by creating ‘wounds’ in the center of a piece of discarded skin and treating them with three different biomaterials: collagen, polyethylene glycol (PEG)-fibrin, or PEG-platelet free plasma (PFP). Explants were cultured for 14 days with supernatant and microscopy images collected every 3 days to assess cytotoxicity and epithelialization. After 14 days, the explants were fixed, sectioned, and stained for cytokeratin-10 (CK-10), alpha-smooth muscle actin (α-SMA), and wheat germ (WG). Compared to controls, similar levels of cytotoxicity were detected for 12 days which decreased slightly at day 14. The PEG-PFP hydrogel-treated wounds epithelialized faster than other treatments at days 6 to 14. A 6-8 cell layer thick CK-10+ stratified epidermis had developed over the PEG-PFP hydrogel and cells co-stained by WG and α-SMA were observed within the hydrogel. An ex vivo model was established that can be used practically to screen different therapies exploring wound healing.
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Affiliation(s)
- Randolph Stone
- Combat Trauma and Burn Injury Research, US Army Institute of Surgical Research, JBSA Fort Sam Houston, San Antonio, TX 78234-6315, USA.
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26
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Sawazaki T, Nakajima Y, Urai T, Mukai K, Ohta M, Kato I, Kawaguchi A, Kinoshita Y, Kumagai Y, Sakashita A, Yamazaki A, Nakatani T. Efficacy of Honeydew Honey and Blossom Honey on Full-thickness Wound Healing in Mice. Wounds 2018; 30:197-204. [PMID: 29718813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
INTRODUCTION The wound healing properties of honey, including blossom honey, are well known; however, the effects of honeydew honey during the wound healing process have not yet been investigated and thus remain unclear. OBJECTIVE This study compares the effects of honeydew honey with those of blossom honey. MATERIALS AND METHODS A total of 140 mice were divided into 2 control groups, which received either a hydrocolloid dressing (HCD; n = 22) or gauze (n = 22), and 4 experimental groups: honeydew honey (n = 23), Acacia honey (n = 23), Manuka honey (n = 22), and Japanese Pharmacopoeia honey (n = 28). Two circular full-thickness wounds were made and measured for 14 days. Each wound in the experimental groups was treated with 0.1 mL of honey and covered with gauze. Dressings in the control and experimental groups were changed daily. RESULTS The wounds in all of the honey groups and the HCD group were moist by day 14, while those in the gauze group were dry. The ratio of wound area to initial wound area and the number of inflammatory cells decreased during the inflammatory phase in all honey groups. However, the honey groups exhibited reepithelialization rates of < 40%, numerous neutrophils, weak wound contraction, and impaired collagen deposition in wounds after day 11. CONCLUSIONS These results suggest honeydew honey and blossom honey both exert anti-inflammatory effects during the inflammatory phase. However, all of the honeys examined were less effective at promoting full-thickness wound healing than the controls. Further studies are warranted.
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Affiliation(s)
- Takuto Sawazaki
- Department of Clinical Nursing, Graduate Course of Nursing Science, Division of Health Sciences, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Japan
| | - Yukari Nakajima
- Department of Clinical Nursing, Graduate Course of Nursing Science, Division of Health Sciences, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Japan
| | - Tamae Urai
- Department of Clinical Nursing, Graduate Course of Nursing Science, Division of Health Sciences, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Japan
| | - Kanae Mukai
- Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University
| | - Megumi Ohta
- Division of Nursing, Faculty of Health Sciences, Kanazawa University
| | - Ikuko Kato
- Division of Nursing, Faculty of Health Sciences, Kanazawa University
| | - Azusa Kawaguchi
- Division of Nursing, Faculty of Health Sciences, Kanazawa University
| | - Yui Kinoshita
- Division of Nursing, Faculty of Health Sciences, Kanazawa University
| | - Yuri Kumagai
- Division of Nursing, Faculty of Health Sciences, Kanazawa University
| | - Ayaka Sakashita
- Division of Nursing, Faculty of Health Sciences, Kanazawa University
| | - Asuka Yamazaki
- Division of Nursing, Faculty of Health Sciences, Kanazawa University
| | - Toshio Nakatani
- Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University
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27
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Carlson E, Kao WW, Ogundele A. Impact of Hyaluronic Acid-Containing Artificial Tear Products on Reepithelialization in an In Vivo Corneal Wound Model. J Ocul Pharmacol Ther 2018; 34:360-364. [PMID: 29394128 PMCID: PMC5952336 DOI: 10.1089/jop.2017.0080] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Accepted: 11/20/2017] [Indexed: 01/11/2023] Open
Abstract
PURPOSE To evaluate the effect of 6 commercially available hyaluronic acid (HA)-containing topical artificial tear products on corneal reepithelialization following injury, in an in vivo mouse model. METHODS Ninety-six C57Bl/6 mice (16 per treatment group; male to female ratio, 1:1 per group) were anesthetized. Epithelial debridement was performed on 1 cornea per animal, and the debrided eye was imaged. A 30 μL masked test solution containing 1 of 6 artificial tear products was instilled, immediately on debridement, and subsequently, every 2 h, for a total of 4 administrations. At 24 h post debridement, corneas were stained with fluorescein and imaged to calculate corneal healing rate (number of fluorescein-negative corneas). RESULTS All 6 artificial tear products used in this study permitted the initial process of corneal wound healing. However, the corneal reepithelialization rate after 24 h was higher with Hydroxypropyl guar (HPG)/HA (53.33%) compared with other HA-containing artificial tear products [HA1 (12.5%), HA2 (26.67%), HA3 (31.25%), HA4 (6.25%), and HA5 (43.75%)]. The average area and percentage area of reepithelialization after 24 h were also higher with HPG/HA compared with other treatment groups. CONCLUSIONS Percentage of eyes with complete corneal reepithelialization 24 h post debridement was highest with HPG/HA compared with other HA-containing artificial tear products tested. The results of this study provide additional evidence on the potential benefits of HPG/HA in the management of dry eye and its role in the rapid restoration of a healthy ocular epithelium. However, further studies are required to confirm the effects on human corneal wounds.
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Affiliation(s)
- Eric Carlson
- Novartis Pharmaceuticals Corporation, Fort Worth, Texas
| | - Winston W.Y. Kao
- Department of Ophthalmology, College of Medicine at the University of Cincinnati, Cincinnati, Ohio
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28
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Giordano A, Romano S, Corcione N, Frati G, Zoccai GB, Ferraro P, Messina S, Ottolini S, Romano MF. Tirofiban Positively Regulates β1 Integrin and Favours Endothelial Cell Growth on Polylactic Acid Biopolymer Vascular Scaffold (BVS). J Cardiovasc Transl Res 2018; 11:201-209. [PMID: 29696533 DOI: 10.1007/s12265-018-9805-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Accepted: 04/11/2018] [Indexed: 02/05/2023]
Affiliation(s)
- Arturo Giordano
- Unità Operativa di Interventistica Cardiovascolare, Presidio Ospedaliero Pineta Grande, Castel Volturno, Italy
- Unità Operativa di Emodinamica, Casa di Salute Santa Lucia, San Giuseppe Vesuviano, Naples, Italy
| | - Simona Romano
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, via Pansini, 5, 80131, Naples, Italy
| | - Nicola Corcione
- Unità Operativa di Interventistica Cardiovascolare, Presidio Ospedaliero Pineta Grande, Castel Volturno, Italy
- Unità Operativa di Emodinamica, Casa di Salute Santa Lucia, San Giuseppe Vesuviano, Naples, Italy
| | - Giacomo Frati
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Latina, Italy
| | - Giuseppe Biondi Zoccai
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Latina, Italy
- Department of AngioCardioNeurology, IRCCS Neuromed, Pozzilli, Italy
| | - Paolo Ferraro
- Unità Operativa di Interventistica Cardiovascolare, Presidio Ospedaliero Pineta Grande, Castel Volturno, Italy
- Unità Operativa di Emodinamica, Casa di Salute Santa Lucia, San Giuseppe Vesuviano, Naples, Italy
| | - Stefano Messina
- Unità Operativa di Interventistica Cardiovascolare, Presidio Ospedaliero Pineta Grande, Castel Volturno, Italy
- Unità Operativa di Emodinamica, Casa di Salute Santa Lucia, San Giuseppe Vesuviano, Naples, Italy
| | | | - Maria Fiammetta Romano
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, via Pansini, 5, 80131, Naples, Italy.
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Wu J, Xiao Z, Chen A, He H, He C, Shuai X, Li X, Chen S, Zhang Y, Ren B, Zheng J, Xiao J. Sulfated zwitterionic poly(sulfobetaine methacrylate) hydrogels promote complete skin regeneration. Acta Biomater 2018. [PMID: 29535009 DOI: 10.1016/j.actbio.2018.02.034] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Skin wound healing is a still long-history challenging problem and impeded by the foreign-body reaction including severe inflammation response, poor neovascularization, incomplete re-epithelialization and defective ECM remodeling. Development of biocompatible polymers, in combination with specific drugs or growth factors, has been considered as a promising strategy to treat skin wounds. Significant research efforts have been made to develop poly(ethylene glycol) PEG-based polymers for wound healing, however less efforts has been paid to zwitterionic materials, some of which have demonstrated their super low-fouling property in vitro and anti-inflammatory property in vivo. Here, we synthesized ultra-low-fouling zwitterionic sulfated poly(sulfobetaine methacrylate) (polySBMA) hydrogels and applied them to full-thickness cutaneous wounds in mice. The healing effects of SBMA hydrogels on the wound closure, re-epithelialization ratio, ECM remodeling, angiogenesis, and macrophage responses during wound healing processes were histologically evaluated by in vivo experiments. Collective results indicate that SBMA hydrogels promote full-thickness excisional acute wound regeneration in mice by enhancing angiogenesis, decreasing inflammation response, and modulating macrophage polarization. Consistently, the incorporation of SBMA into PEG hydrogels also improved the overall wound healing efficiency as compared to pure PEG hydrogels. This work demonstrates zwitterionic SBMA hydrogels as promising wound dressings for treating full-thickness excisional skin wounds. STATEMENT OF SIGNIFICANCE Development of highly effective wound regeneration system is practically important for biomedical applications. Here, we synthesized ultra-low-fouling zwitterionic sulfated poly(sulfobetaine methacrylate) (polySBMA) hydrogels and applied it to full-thickness cutaneous wounds in mice, in comparison with PEG hydrogels as a control. We are the first to examine and reveal the difference between zwitterionic SBMA hydrogels and PEG hydrogels using a full-thickness excisional mice model. Overall, a series of in vivo systematic tests demonstrated that zwitterionic SBMA hydrogels exhibited superior wound healing property in almost all aspects as compared to PEG hydrogels.
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Affiliation(s)
- Jiang Wu
- School of Pharmaceutical Sciences, Key Laboratory of Biotechnology and Pharmaceutical Engineering, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China; College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325027, China
| | - Zecong Xiao
- School of Pharmaceutical Sciences, Key Laboratory of Biotechnology and Pharmaceutical Engineering, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China; College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325027, China; PCFM Lab of Ministry of Education, School of Materials Science and Engineering, Sun Yat-Sen University, Guangzhou, China
| | - Anqi Chen
- School of Pharmaceutical Sciences, Key Laboratory of Biotechnology and Pharmaceutical Engineering, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Huacheng He
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325027, China.
| | - Chaochao He
- School of Pharmaceutical Sciences, Key Laboratory of Biotechnology and Pharmaceutical Engineering, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Xintao Shuai
- PCFM Lab of Ministry of Education, School of Materials Science and Engineering, Sun Yat-Sen University, Guangzhou, China
| | - Xiaokun Li
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325027, China
| | - Shengfu Chen
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, China
| | - Yanxian Zhang
- Department of Chemical and Biomolecular Engineering, The University of Akron, Akron, OH 44325, USA
| | - Baiping Ren
- Department of Chemical and Biomolecular Engineering, The University of Akron, Akron, OH 44325, USA
| | - Jie Zheng
- Department of Chemical and Biomolecular Engineering, The University of Akron, Akron, OH 44325, USA; College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325027, China.
| | - Jian Xiao
- School of Pharmaceutical Sciences, Key Laboratory of Biotechnology and Pharmaceutical Engineering, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China; College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325027, China.
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30
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Abstract
β-glucans are derived from a variety of sources including yeast, grain and fungus and belong to the class of drugs known as biological response modifiers. They possess a broad spectrum of biological activities that enhance immunity in humans. One promising area for β-glucans’ application is dermatology, including wound care. Topical applications of β-glucans are increasing, especially due to their pluripotent properties. Macrophages, keratinocytes and fibroblasts are considered the main target cells of β-glucans during wound healing. β-glucans enhance wound repair by increasing the infiltration of macrophages, which stimulates tissue granulation, collagen deposition and reepithelialization. β-glucan wound dressings represent a suitable wound healing agent, with great stability and resistance to wound proteases. This review summarizes the current knowledge and progress made on characterizing β-glucans’ wound healing properties in vitro and in vivo and their safety and efficacy in managing non-healing wounds or other chronic dermatological conditions and diseases.
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Affiliation(s)
- Juraj Majtan
- Institute of Molecular Biology, Slovak Academy of Sciences, Dubravska Cesta 21, 845 51 Bratislava, Slovakia.
| | - Milos Jesenak
- Department of Paediatrics, Jessenius Faculty of Medicine, Comenius University in Bratislava, Kollarova 2, 036 59 Martin, Slovakia.
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31
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O'Brien DP, Friedman ND, McDonald A, Callan P, Hughes A, Walton A, Athan E. Wound healing: Natural history and risk factors for delay in Australian patients treated with antibiotics for Mycobacterium ulcerans disease. PLoS Negl Trop Dis 2018; 12:e0006357. [PMID: 29554101 PMCID: PMC5875894 DOI: 10.1371/journal.pntd.0006357] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Revised: 03/29/2018] [Accepted: 03/01/2018] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND Healing times following treatment with antibiotics, and factors that influence healing, have not been reported in Australian patients with Mycobacterium ulcerans. METHODOLOGY/PRINCIPAL FINDINGS Healing times were determined for all M. ulcerans cases treated by a single physician with antibiotics at Barwon Health, Victoria, from 1/1/13-31/12/16. Lesions were categorised by induration size: category A ≤ 400mm2, Category B 401-1600mm2 and Category C ≥1601mm2. A logistic regression analysis was performed to determine risk factors for prolonged wound healing (>150 days from antibiotic commencement). 163 patients were included; 92 (56.4%) were male and median age was 58 years (IQR 39-73 years). Baseline lesion size [available in 145 (89.0%) patients] was categorised as A in 46 (31.7%), B in 67 (46.2%) and C in 32 (22.1%) patients. Fifty (30.7%) patients had surgery. In those treated with antibiotics alone, 83.0% experienced a reduction in induration size after 2 weeks, then 70.9% experienced an increase in induration size from the lowest point, and 71.7% experienced an increase in ulceration size. A linear relationship existed between the time induration resolved and wound healing began. Median time to heal was 91 days (IQR 70-148 days) for category A lesions; significantly shorter than for category B lesions (128 days, IQR 91-181 days, p = 0.05) and category C lesions (169 days, IQR 159-214 days, p<0.001). Fifty-seven (35.0%) patients experienced a paradoxical reaction. Of those treated with antibiotics alone, lesions experiencing a paradoxical reaction had longer healing times [median time to heal 177 days (IQR 154-224 days) compared to 107 days (IQR 79-153 days), p<0.001]. On multivariable logistic regression, lesion size at baseline (p<0.001) and paradoxical reactions (p<0.001) were independently associated with prolonged healing times. For category A and B lesions, healing time was significantly shorter with antibiotics plus excision and direct closure compared with antibiotics alone [Category A lesions median 55 days (IQR 21-63 days) compared with 91 days (IQR 70-148 days), p<0.001; Category B lesions median 74 days (IQR 21-121 days) compared to 128 days (IQR 97-181 days), p<0.001]. CONCLUSIONS In Australian patients treated with antibiotics M. ulcerans lesions usually initially improve, then clinically deteriorate with increased induration and ulceration, before healing after the inflammation associated with lesions resolves. The time to complete healing of lesions is generally long, and is further prolonged in those with larger initial lesion size or who develop paradoxical reactions. For small lesions (<4cm2), excisional surgery may reduce healing times.
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Affiliation(s)
- Daniel P O'Brien
- Department of Infectious Diseases, Barwon Health, Geelong, Australia
- Department of Medicine and Infectious Diseases, Royal Melbourne Hospital, University of Melbourne, Melbourne, Australia
- Manson Unit, Médecins Sans Frontières, London, United Kingdom
| | | | - Anthony McDonald
- Department of Plastic Surgery, Barwon Health, Geelong, Australia
| | - Peter Callan
- Department of Plastic Surgery, Barwon Health, Geelong, Australia
| | - Andrew Hughes
- Department of Infectious Diseases, Barwon Health, Geelong, Australia
| | - Aaron Walton
- Department of Infectious Diseases, Barwon Health, Geelong, Australia
| | - Eugene Athan
- Department of Infectious Diseases, Barwon Health, Geelong, Australia
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Stupin VA, Silina EV, Gorskij VA, Gorjunov SV, Zhidkih SY, Komarov AN, Sivkov AS, Gabitov RB, Zolotareva LS, Sinel'nikova TG, Barancevich ER, Bogomolov MS, Korejba KA, Bogdanov EA, Krivihin VE, Bakunov MY, Eliseeva ME, Krivihin DV. [Efficacy and safety of collagen biomaterial local application in complex treatment of the diabetic foot syndrome (final results of the multicenter randomised study)]. Khirurgiia (Mosk) 2018:91-100. [PMID: 29953106 DOI: 10.17116/hirurgia2018691-100] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
AIM To evaluate the efficacy and safety of collagen biomaterial application during the 4-week follow-up of patients with diabetic foot syndrome. MATERIAL AND METHODS 75 patients with diabetic foot (Wagner II (69.3%) and III (30.7%)) aged 30-80 years were included in the multicenter study, among them were 50.7% with the wound unhealed for 1.5-6 months and 49.3% over 6-48 months. Patients were randomized into 2 groups: 1) standard therapy (n=37), 2) the additional use of the collagen material Collost (n=38). Observation period was at least 4 weeks for each patient. The size of ulcers, results of general and biochemical blood tests, oximetry, microbiological testing, ultrasound of lower extremities vessels as well as a detailed medical history, social and functional status, level of cardiovascular comorbidity and ongoing therapy were estimated. RESULTS Additional use of a collagen biomaterial has led to a significant reduction ulcers of all sizes from 13.5 to 2.1 cm2 (in the comparison group - from 12.5 to 7 cm2). The best dynamics have been registered in Wagner II (4.4-fold average wound area regress in Collost group, from 8.8 to 2.0 cm2; average wound area regress by 1.8 times, from 10 to 5.6 cm2 in the comparison group) than in Wagner III group (in the main group from 55 to 21.3 cm2; in the control group from 36 to 32.4 cm2) and in ulcers existing less than 6 months. Treatment with biological material Collost within standard therapy after 4 weeks led to increase of complete epithelialization by 2.6% (21.1% as compared to 14.7%), while decreasing the frequency of ineffective treatment by 4.1 (7.9% in primary and 32.4% in the comparison group). CONCLUSION We have proved the efficacy and safety of collagen biomaterial topical application in a diabetic foot syndrome treatment.
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Affiliation(s)
- V A Stupin
- Pirogov Russian National Research Medical University, Moscow, Russia; City Clinical Hospital #15 named O.M. Filatova, Moscow, Russia
| | - E V Silina
- I.M. Sechenov First Moscow State Medical University, Moscow, Russia
| | - V A Gorskij
- Pirogov Russian National Research Medical University, Moscow, Russia; Lytkarinsky central city hospital, Lytkarino, Russia
| | - S V Gorjunov
- Pirogov Russian National Research Medical University, Moscow, Russia; City Clinical Hospital #15 named O.M. Filatova, Moscow, Russia
| | - S Yu Zhidkih
- Pirogov Russian National Research Medical University, Moscow, Russia; City Clinical Hospital #15 named O.M. Filatova, Moscow, Russia
| | - A N Komarov
- Pirogov Russian National Research Medical University, Moscow, Russia
| | - A S Sivkov
- Pirogov Russian National Research Medical University, Moscow, Russia; Lytkarinsky central city hospital, Lytkarino, Russia
| | - R B Gabitov
- I.M. Sechenov First Moscow State Medical University, Moscow, Russia
| | - L S Zolotareva
- I.M. Sechenov First Moscow State Medical University, Moscow, Russia
| | - T G Sinel'nikova
- I.M. Sechenov First Moscow State Medical University, Moscow, Russia
| | - E R Barancevich
- Pavlov First Saint Petersburg State Medical University, St. Petersburg, Russia
| | - M S Bogomolov
- Pavlov First Saint Petersburg State Medical University, St. Petersburg, Russia
| | - K A Korejba
- Kazan State Medical University, Kazan, Russia
| | - E A Bogdanov
- Immanuel Kant Baltic Federal University, Kaliningrad, Russia
| | - V E Krivihin
- M.F. Vladimirsky Moscow Regional Scientific Research Clinical Institute, Moscow, Russia; Vidnovsky District Clinical Hospita, Vidnoe, Russia
| | - M Yu Bakunov
- M.F. Vladimirsky Moscow Regional Scientific Research Clinical Institute, Moscow, Russia
| | - M E Eliseeva
- M.F. Vladimirsky Moscow Regional Scientific Research Clinical Institute, Moscow, Russia
| | - D V Krivihin
- M.F. Vladimirsky Moscow Regional Scientific Research Clinical Institute, Moscow, Russia
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Zarick CS, Benkert EA, Oliver NG, Steinberg JS, Evans KK, Attinger CE, Rocha ZM, Kim PJ. The Potential of Gelam Honey in Promoting the Proliferative Phase of Corneal Reepithelialization. Wounds 2017; 29:380-386. [PMID: 28976341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
INTRODUCTION Advances in molecular diagnostic medicine have allowed for more rapid, accurate, and comprehensive methods for identifying microorganisms in a chronic wound, which led to the de- velopment and use of a tailored topical antibiotic gel aimed at treating this bioburden. OBJECTIVE This is a retrospective chart review evalu- ating the authors' early experience with the use of bacteria-speci c antimicrobial gel therapy on chronic lower extremity wounds that have not responded to standard therapy. MATERIALS AND METHODS All patients in the study were treated with a topical gel along with standard of care modalities. RESULTS A total of 48 patients with 76 wounds (50/76 venous leg ulcers; 65.8%) were identi ed and analyzed. Of the 48 patients, 11 (22.9%) had complete wound closure at a mean of 101.6 days of treatment. The number of wounds decreasing in size improved from 45.3% to 77.6% after gel therapy. An analysis of all wounds showed an increase in size by 0.7% weekly with the topical gel; how- ever, a mean weekly healing rate of 6.5% was seen when analyzing only the subset of wounds that decreased in size. CONCLUSIONS Although a minor improvement of weekly healing rate was seen for a subset of the wounds, the overall wound closure rate was low.
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Affiliation(s)
- Caitlin S Zarick
- Center for Wound Healing and Hyperbaric Medicine, MedStar Georgetown University Hospital, Washington, DC
| | - Elizabeth A Benkert
- Center for Wound Healing and Hyperbaric Medicine, MedStar Georgetown University Hospital, Washington, DC
| | - Noah G Oliver
- Center for Wound Healing and Hyperbaric Medicine, MedStar Georgetown University Hospital, Washington, DC
| | - John S Steinberg
- Center for Wound Healing and Hyperbaric Medicine, MedStar Georgetown University Hospital, Washington, DC
| | - Karen K Evans
- Center for Wound Healing and Hyperbaric Medicine, MedStar Georgetown University Hospital, Washington, DC
| | - Christopher E Attinger
- Center for Wound Healing and Hyperbaric Medicine, MedStar Georgetown University Hospital, Washington, DC
| | - Zinnia M Rocha
- Center for Wound Healing and Hyperbaric Medicine, MedStar Georgetown University Hospital, Washington, DC
| | - Paul J Kim
- Center for Wound Healing and Hyperbaric Medicine, MedStar Georgetown University Hospital, Washington, DC
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Fallacara A, Vertuani S, Panozzo G, Pecorelli A, Valacchi G, Manfredini S. Novel Artificial Tears Containing Cross-Linked Hyaluronic Acid: An In Vitro Re-Epithelialization Study. Molecules 2017; 22:E2104. [PMID: 29189737 PMCID: PMC6149675 DOI: 10.3390/molecules22122104] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Accepted: 11/27/2017] [Indexed: 11/21/2022] Open
Abstract
Dry eye syndrome is a common disease which can damage the corneal epithelium. It is treated with eye drops to stimulate tear production and hydrate the corneal surface. The most prescribed artificial tear remedies contain hyaluronic acid (HA), which enhances epithelial wound healing, improving tissue health. To the best of our knowledge, only a few recent studies have investigated cross-linked HA (HA-CL) in eye drops for human applications. This work consists in an in vitro evaluation of the re-epithelialization ability of two different preparations containing a recently synthetized HA cross-linked with urea: 0.02% (w/v) HA-CL (solution 1, S1), and 0.4% (w/v) HA-CL (solution 2, S2). The study was conducted on both 2D human corneal cells (HCEpiC) and 3D reconstructed tissues of human corneal epithelium (HCE). Viability by 3(4,5-dimethylthiazol-2)2,5-diphenyltetrazolium bromide (MTT) test, pro-inflammatory cytokine release (interleukin-8, IL-8) by ELISA, and morphology by hematoxylin and eosin (HE) staining were evaluated. In addition, to understand the molecular basis of the re-epithelialization properties, cyclin D1 levels were assessed by western blot. The results showed no cellular toxicity, a slight decrease in IL-8 release, and restoration of epithelium integrity when the wounded 3D model was treated with S1 and S2. In parallel, cyclin D1 levels increased in cells treated with both S1 and S2.
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Affiliation(s)
- Arianna Fallacara
- Department of Life Sciences and Biotechnology, Master Course in Cosmetic Science and Technology (COSMAST), University of Ferrara, Via L. Borsari 46, 44121 Ferrara, Italy.
| | - Silvia Vertuani
- Department of Life Sciences and Biotechnology, Master Course in Cosmetic Science and Technology (COSMAST), University of Ferrara, Via L. Borsari 46, 44121 Ferrara, Italy.
| | - Giacomo Panozzo
- Ophthalmology Unit, Azienda ULSS n.22, 37012 Bussolengo, Italy.
| | - Alessandra Pecorelli
- Department of Animal Sciences, Plants for Human Health Institute, North Carolina State University, NC Research Campus, 600 Laureate Way, Kannapolis, NC 28081, USA.
| | - Giuseppe Valacchi
- Department of Animal Sciences, Plants for Human Health Institute, North Carolina State University, NC Research Campus, 600 Laureate Way, Kannapolis, NC 28081, USA.
| | - Stefano Manfredini
- Department of Life Sciences and Biotechnology, Master Course in Cosmetic Science and Technology (COSMAST), University of Ferrara, Via L. Borsari 46, 44121 Ferrara, Italy.
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Schultz J, Leupold S, Grählert X, Pfeiffer R, Schwanebeck U, Schröttner P, Djawid B, Artsimovich W, Kozak K, Fitze G. Study protocol for a randomized controlled pilot-trial on the semiocclusive treatment of fingertip amputation injuries using a novel finger cap. Medicine (Baltimore) 2017; 96:e8224. [PMID: 29019891 PMCID: PMC5662314 DOI: 10.1097/md.0000000000008224] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
Abstract
INTRODUCTION Fingertip amputation injuries are common in all ages. Conservatively treated fingertips can regenerate skin and soft tissues to form a functionally and cosmetically excellent new fingertip. Little is known about this ability that, in humans, is confined to the fingertips. Even less is known about the role of the bacteria that regularly colonize these wounds without negative impact on regeneration and healing.As an alternative to surgery, self-adhesive film dressings are commonly used to establish a wet chamber around the injury. These dressings leak malodorous wound fluid eventually until the wound is dry. Having that into consideration, we have therefore developed a silicone finger cap that forms a mechanically protected, wet chamber around the injury for optimal regeneration conditions. It contains a puncturable reservoir for excess wound fluid, which can be thus routinely analyzed for diagnostic and research purposes.This study protocol explains the first randomized controlled trial (RCT) on the semiocclusive treatment of fingertip amputations in both children and adults comparing traditional film dressings with the novel silicone finger cap. Being the first RCT using 2 medical devices not yet certified for this indication, it will gather valuable information for the understanding of fingertip regeneration and the design of future definitive studies. METHODS AND ANALYSIS By employing an innovative pseudo-cross-over-design with a dichotomous primary endpoint based on patients preference, this pilot study will gain statistically significant data with a very limited sample size. Our RCT will investigate acceptance, safety, effectiveness, and efficacy of this novel medical device while gathering information on the clinical course and outcome of conservatively treated fingertip injuries. A total of 22 patients older than 2 years will be randomly assigned to start the conservative treatment with either the traditional film-dressing or the novel finger cap. The treatment will be changed to the other alternative for another 2 weeks before the patient or the guardian is confronted with the decision of which method they would prefer for the rest of the treatment (if required). ETHICS AND DISSEMINATION Ethical approval (EK 148042015) of the study protocol has been obtained from Institutional Review Board at the TU Dresden. The trial is registered at the European Database on Medical Devices (EUDAMED-No.: CIV-15-03-013246) and at ClinicalTrials.gov (NCT03089060).
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Affiliation(s)
| | | | | | | | | | - Percy Schröttner
- Institute of Medical Microbiology and Hygiene, Carl Gustav Carus Medical Faculty, Technische Universität Dresden, Fetscherstrasse
| | | | | | - Karol Kozak
- Fraunhofer Institute for Material and Beam Technology IWS Dresden
- Carl Gustav Carus Medical Faculty, Technische Universität Dresden, Fetscherstrasse, Dresden, Germany
- Wrocław Medical University, Wybrzeże Ludwika Pasteura 1, Wrocław, Poland
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Bilyayeva OO, Neshta VV, Golub AA, Sams-Dodd F. Comparative Clinical Study of the Wound Healing Effects of a Novel Micropore Particle Technology: Effects on Wounds, Venous Leg Ulcers, and Diabetic Foot Ulcers. Wounds 2017; 29:1-9. [PMID: 28570251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
OBJECTIVE The purpose of this study was to determine the wound healing effects of Acapsil, a white, odorless powder based on micropore particle technology (MPPT) (Willingsford Ltd, Southampton, UK) by comparing it to Gentaxane (Gentaksan, Borshchagovsky CCP, Kyiv, Ukraine) (polydimethylsiloxane powder with gentamicin antibiotic) and Ioddicerin (Farmak, Kyiv, Ukraine) (iodine with dimethyl sulfoxide [DMSO]). MATERIALS AND METHODS The study included 266 patients with primarily trophic ulcers caused by pancreatic diabetes and venous insufficiency of the lower extremities, carbuncles, phlegmons, infected third- or fourth-degree heat burns, and infiltrations of postoperative wounds. The products were applied once daily to the wound until it was clean (ie, free from necrosis, pus, and fibrinogenous thickenings). RESULTS The number of days (mean ± standard deviation) to a clean wound was 3.0 ± 0.9 for MPPT (n = 88) compared with 7.0 ± 1.2 and 8.0 ± 1.1 for Gentaxane (n = 90) and iodine/DMSO (n = 88), respectively. Thus, MPPT reduced the time to reach a clean wound by 57% and 62%, respectively. Products were used once daily until a clean wound was reached, which also reflects the number of applications. Days to onset of granulation for MPPT, Gentaxane, and iodine/DMSO were 4.5 ± 0.8, 9.2 ± 1.4, and 10.3 ± 1.5 days, respectively; and days to onset of epithelialization were 7.8 ± 1.1, 14.1 ± 1.9, and 16.4 ± 2.7 days, respectively. Subgroup analysis of patients with diabetic foot and venous leg ulcers found that each of these demonstrated the same pattern of healing as the overall study. The number of hospitalization days was 14.6 ± 5.6 for MPPT, 21.0 ± 10.7 for Gentaxane, and 24.0 ± 7.9 for iodine/DMSO. Compared with Gentaxane, patients receiving MPPT had a 31% reduction in hospitalization duration and a 39% reduction compared with iodine/DMSO. CONCLUSION These findings demonstrate that MPPT represents a valuable new approach to wound care.
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Affiliation(s)
- Olga O Bilyayeva
- Shupik National Medical Academy of Postgraduate Education, Kyiv, Ukraine
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Abstract
Purpose Ocular surface and corneal epithelial wounds are common and potentially debilitating problems. Ideal treatments for these injuries would promote epithelial healing without inflammation, infection and scarring. In addition the best treatments would be cost-efficient, effective, non-toxic and easily applied. Histatin-1 peptides have been shown to be safe and effective enhancers of epithelial wound healing in other model systems. We sought to determine whether histatin-1 peptides could enhance human corneal epithelial wound healing in vitro. Methods Histatin-1 peptides were applied to human corneal epithelial cells and compared over useful dose ranges in scratch assays using time-lapse microscopy. In addition, path finding analysis, cell spreading assays, toxicity and proliferation assays were performed to further characterize the effects of histatin-1 peptide on human corneal limbal epithelial (HCLE). Results Histatin-1 enhanced human corneal epithelial wound healing in typical wound healing models. There was minimal toxicity and no significant enhancement of proliferation of corneal epithelium in response to histatin-1 application. Corneal epithelial spreading and pathfinding appeared to be enhanced by the application of histatin-1 peptides. Conclusions Histatin -1 peptide may enhance migration of HCLE cells and wound healing in vitro. These peptides may have benefit in corneal epithelial wounds and need to be investigated further.
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Affiliation(s)
- Dhara Shah
- Lacrimal Cell Biology Laboratory, University of Illinois at Chicago, Department of Ophthalmology and Visual Sciences, Chicago, United States of America
| | - Marwan Ali
- Lacrimal Cell Biology Laboratory, University of Illinois at Chicago, Department of Ophthalmology and Visual Sciences, Chicago, United States of America
| | - Deepak Shukla
- University of Illinois at Chicago, Department of Ophthalmology and Visual Sciences, Chicago, United States of America
| | - Sandeep Jain
- University of Illinois at Chicago, Department of Ophthalmology and Visual Sciences, Chicago, United States of America
| | - Vinay Kumar Aakalu
- Lacrimal Cell Biology Laboratory, University of Illinois at Chicago, Department of Ophthalmology and Visual Sciences, Chicago, United States of America
- * E-mail:
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Wang XJ, Zhuo J, Luo GH, Zhu YP, Yu DJ, Zhao RZ, Jiang CY, Shi YF, Li H, Chen L, Hao KY, Han X, Zhao S, Bei XY, Jing YF, Xia SJ. Androgen Deprivation Accelerates the Prostatic Urethra Wound Healing After Thulium Laser Resection of the Prostate by Promoting Re-Epithelialization and Regulating the Macrophage Polarization. Prostate 2017; 77:708-717. [PMID: 28168722 DOI: 10.1002/pros.23301] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Accepted: 12/15/2016] [Indexed: 01/29/2023]
Abstract
BACKGROUND Complications after a thulium laser resection of the prostate (TmLRP) are related to re-epithelialization of the prostatic urethra. Since prostate growth and development are induced by androgen, the aim of this study was to determine the role and explore the mechanism of androgen in wound healing of the prostatic urethra. METHODS Beagles that received TmLRPs were randomly distributed into a castration group, a testosterone undecanoate (TU) group, and a control group. The prostate wound was assessed once a week using a cystoscope. Histological analysis was then carried out to study the re-epithelialization of the prostatic urethra in each group. The inflammatory response in the wound tissue and urine was also investigated. RESULTS The healing of the prostatic urethra after a TmLRP was more rapid in the castration group and slower in the TU group than that in the control group. Castration accelerated re-epithelialization by promoting basal cell proliferation in the wound surface and beneath the wound and by accelerating the differentiation of basal cells into urothelial cells. Castration reduced the duration of the inflammatory phase and induced the conversion of M1 macrophages to M2 macrophages, thus accelerating the maturation of the wound. By contrast, androgen supplementation enhanced the inflammatory response and prolonged the inflammatory phase. Moreover, the anti-inflammatory phase was delayed and weakened. CONCLUSION Androgen deprivation promotes re-epithelialization of the wound, regulates the inflammatory response, and accelerates wound healing of the prostatic urethra after a TmLRP. Prostate 77:708-717, 2017. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Xing-Jie Wang
- Department of Urology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jian Zhuo
- Department of Urology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Department of Urology, Shanghai General Hospital of Nanjing Medical University, Shanghai, China
- Institute of Urology, Shanghai Jiao Tong University, Shanghai, China
| | - Guang-Heng Luo
- Department of Urology, Guizhou Provincial People's Hospital, Guiyang, China
| | - Yi-Ping Zhu
- Department of Urology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Dian-Jun Yu
- Department of Urology, Shanghai General Hospital of Nanjing Medical University, Shanghai, China
- Department of Urology, Ningbo Medical Center Lihuili Eastern Hospital, Ningbo, China
| | - Rui-Zhe Zhao
- Department of Urology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chen-Yi Jiang
- Department of Urology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yun-Feng Shi
- Department of Urology, Shanghai General Hospital of Nanjing Medical University, Shanghai, China
- Department of Urology, Wujin Hospital Affiliated Jiang Su University, Changzhou, China
| | - Hao Li
- Department of Urology, Shanghai General Hospital of Nanjing Medical University, Shanghai, China
- Department of Urology, General Hospital of Xuzhou Mining Group, Xuzhou, China
| | - Lei Chen
- Department of Urology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Kui-Yuan Hao
- Department of Urology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xia Han
- Department of Urology, Shanghai General Hospital of Nanjing Medical University, Shanghai, China
| | - Sheng Zhao
- Department of Urology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiao-Yu Bei
- Department of Urology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yi-Feng Jing
- Department of Urology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Institute of Urology, Shanghai Jiao Tong University, Shanghai, China
| | - Shu-Jie Xia
- Department of Urology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Institute of Urology, Shanghai Jiao Tong University, Shanghai, China
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Saeidinia A, Keihanian F, Lashkari AP, Lahiji HG, Mobayyen M, Heidarzade A, Golchai J. Partial-thickness burn wounds healing by topical treatment: A randomized controlled comparison between silver sulfadiazine and centiderm. Medicine (Baltimore) 2017; 96:e6168. [PMID: 28248871 PMCID: PMC5340444 DOI: 10.1097/md.0000000000006168] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND Burns are common event and associated with a high incidence of death, disability, and high costs. Centella asiatica (L.) is a medicinal herb, commonly growing in humid areas in several tropical countries that improve wound healing. On the basis of previous studies, we compared the efficacy of Centiderm versus silver sulfadiazine (SSD) in partial thickness burning patients. METHODS Study population comprised burn victims referred to Velayat Burning Hospital at Rasht, Iran. The intervention group received Centiderm and control group SSD cream. Burn wounds were treated once daily at home. All of the wounds were evaluated till complete healing occurred and at the admission, days 3, 7, 14 objective signs; visual acuity score (VAS) and subjective signs were recorded. Re-epithelialization time and complete healing days were recorded. We used random fixed block for randomization. The randomization sequence was created using the computer. Patients and burning specialist physician were blinded. RESULTS Seventy-five patients randomized into 2 groups; (40 patients: Centiderm group; 35 patients: SSD group). The mean age of them was 30.67 ± 9.91 years and 19 of them were male (31.7%). Thirty patients in Centiderm and 30 patients in SSD group were analyzed. All of objective and subjective signs and mean of re-epithelialization and complete healing were significantly better in Centiderm group rather than SSD group (P < 0.05). There was no infection in Centiderm group. CONCLUSIONS We showed that use of Centiderm ointment not only improved the objective and subjective signs in less than 3 days, but also the re-epithelialization and complete healing rather than SSD without any infection in the subjects.
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Affiliation(s)
- Amin Saeidinia
- Medicinal Plants Research Center of Student Basij, Guilan University of Medical Sciences, Rasht Cardiology Department & Pharmaceutical Research Center, Mashhad University of Medical Sciences, Mashhad Pharmacognosy Department and Research and Development Center of Plants and Medicinal Chemistry Fellowship of Burn Surgery, Velayat Hospital Social Medicine Department Dermatology Department, Guilan University of Medical Sciences, Rasht, Iran
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Zhao X, Sun X, Yildirimer L, Lang Q, Lin ZYW, Zheng R, Zhang Y, Cui W, Annabi N, Khademhosseini A. Cell infiltrative hydrogel fibrous scaffolds for accelerated wound healing. Acta Biomater 2017; 49:66-77. [PMID: 27826004 PMCID: PMC5296408 DOI: 10.1016/j.actbio.2016.11.017] [Citation(s) in RCA: 177] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Revised: 10/21/2016] [Accepted: 11/03/2016] [Indexed: 12/11/2022]
Abstract
Development of natural protein-based fibrous scaffolds with tunable physical properties and biocompatibility is highly desirable to construct three-dimensional (3D), fully cellularized scaffolds for wound healing. Herein, we demonstrated a simple and effective technique to construct electrospun 3D fibrous scaffolds for accelerated wound healing using a photocrosslinkable hydrogel based on gelatin methacryloyl (GelMA). We found that the physical properties of the photocrosslinkable hydrogel including water retention, stiffness, strength, elasticity and degradation can be tailored by changing the light exposure time. We further observed that the optimized hydrogel fibrous scaffolds which were soft and elastic could support cell adhesion, proliferation and migration into the whole scaffolds, facilitating regeneration and formation of cutaneous tissues within two weeks. Such tunable characteristics of the fibrous GelMA scaffolds distinguished them from other reported substrates developed for reconstruction of wound defects including glutaraldehyde-crosslinked gelatin or poly (lactic-co-glycolic acid) (PLGA), whose physical and chemical properties were difficult to modify to allow cell infiltration into the 3D scaffolds for tissue regeneration. We anticipate that the ability to become fully cellularized will make the engineered GelMA fibrous scaffolds suitable for widespread applications as skin substitutes or wound dressings. STATEMENT OF SIGNIFICANCE In present study, we generate three-dimensional photocrosslinkable gelatin (GelMA)-based fibrous scaffolds with tunable physical and biological properties by using a combined photocrosslinking/electrospinning approach. The developed GelMA fibrous scaffolds can not only support cell viability and cell adhesion, but also facilitate cell migration and proliferation, accelerating regeneration and formation of cutaneous tissues. In addition, the physical properties of the engineered fibrous GelMA hydrogel including water retention capability, mechanical properties and biodegradability can be tuned to accommodate different patients' needs, making it a promising candidate for skin tissue engineering.
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Affiliation(s)
- Xin Zhao
- Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02139, USA; School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China; Bioinspired Engineering and Biomechanics Center, Xi'an Jiaotong University, Shaanxi 710049, China
| | - Xiaoming Sun
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiaotong University of Medicine, Shanghai 200011, China
| | - Lara Yildirimer
- Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02139, USA
| | - Qi Lang
- Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02139, USA
| | - Zhi Yuan William Lin
- Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02139, USA
| | - Reila Zheng
- Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02139, USA
| | - Yuguang Zhang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiaotong University of Medicine, Shanghai 200011, China
| | - Wenguo Cui
- Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02139, USA; Department of Orthopedics, The First Affiliated Hospital of Soochow University, Orthopedic Institute, Soochow University, Suzhou, Jiangsu 215006, China.
| | - Nasim Annabi
- Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02139, USA; Department of Chemical Engineering, Northeastern University, Boston, MA 02115, USA.
| | - Ali Khademhosseini
- Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02139, USA; Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA 02115, USA; Department of Physics, King Abdulaziz University, Jeddah 21569, Saudi Arabia.
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Abstract
The rapidity with which epithelial cells cover a wound surface helps determine whether scarring or scar-less healing results. As methylene blue is a vital dye that is absorbed by damaged tissue but not undamaged epidermis, it can be used to assess wound closure. We sought to develop a quantitative methylene blue exclusion assay to estimate the timeframe for re-epithelialization in regenerating appendages in zebrafish and axolotls, two classic model systems of regeneration. Following application of methylene blue to the amputation plane and extensive washing, the regenerating tail was imaged in vivo until staining was no longer visible. The percent area of the amputation plane positive for methylene blue, representing the area of the amputation plane not yet re-epithelialized, was measured for each time point. The loss of methylene blue occurred rapidly, within ~2.5 h in larval and juvenile axolotls and <1 h in adult zebrafish, consistent with high rates of re-epithelialization in these models of regeneration. The assay allows simple, rapid estimation of the time course for regenerative re-epithelialization without affecting subsequent regenerative ability. This technique will permit comparison of re-epithelialization across different strains and stages, as well as under the influence of various pharmacological inhibitors that affect regeneration.
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Affiliation(s)
- Maresha Milyavsky
- Department of Biological Sciences,Towson University,Towson, MD 21252,USA
| | - Renee Dickie
- Department of Biological Sciences,Towson University,Towson, MD 21252,USA
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Legon'kova OA, Ushakova TA, Savchenkova IP, Perova NV, Belova MS, Torkova AA, Baranchikov AE, Ivanova OS, Korotaeva AI, Ivanov VK. Experimental Study of the Effects of Nanodispersed Ceria on Wound Repair. Bull Exp Biol Med 2017; 162:395-399. [PMID: 28091923 DOI: 10.1007/s10517-017-3624-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Indexed: 11/26/2022]
Abstract
We studied the effects of nanodispersed ceria on wound healing in vitro and in vivo. It was found that cerium dioxide stimulated wound healing, which manifested in shrinkage of burn wound area (by 1.5 times) and intensification (by 2.4 times) marginal epithelialization.
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Affiliation(s)
- O A Legon'kova
- A. V. Vishnevsky Institute of Surgery, Ministry of Health of the Russian Federation, Moscow, Russia.
| | - T A Ushakova
- A. V. Vishnevsky Institute of Surgery, Ministry of Health of the Russian Federation, Moscow, Russia
| | - I P Savchenkova
- Ya. R. Kovalenko All-Russian Research Institute of Experimental Veterinary, Russian Academy of Sciences, Moscow, Russia
| | - N V Perova
- Institute of Biomedical Research and Technology, Moscow, Russia
| | - M S Belova
- A. V. Vishnevsky Institute of Surgery, Ministry of Health of the Russian Federation, Moscow, Russia
| | - A A Torkova
- A. N. Bach Institute of Biochemistry, Russian Academy of Sciences, Moscow, Russia
| | - A E Baranchikov
- N. S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - O S Ivanova
- N. S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - A I Korotaeva
- A. V. Vishnevsky Institute of Surgery, Ministry of Health of the Russian Federation, Moscow, Russia
| | - V K Ivanov
- N. S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
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Sydorchuk RI, Khomko OJ, Reva VB, Polyanskyi OI, Sydorchuk LP, Popovych AI. [МОRPHOLOGY OF THE DIABETIC FOOT SYNDROME]. Klin Khir 2017:66-67. [PMID: 30273458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Local morphological changes were studied in dynamics in 215 patients, suffering diabetic foot syndrome. While an adequate local treatment conduction, in accordance to the standards elaborated, the histological investigations data have shown the oedema, the cellular infiltration and microcirculatory disorders reduction in the wound boundary zone. In 1 week of treatment in biopsies a young granulating tissue was observed, consisting of big quantity of vascular loops, oriented perpendicularly towards the wound surface and multiple bundles of fibroblasts. In a period of 2 weeks an active multilayered wound defect epithelization was seen. The stratum creeps, right from the skin secured, covering the wound surface.
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Podpryatov SE, Podpryatov SS, Korchak VP, Salata VV, Ivakha VV, Belousov IO. [IMPACT OF THE TISSUES OEDEMA ON THE RESULT OF SURGICAL TREATMENT OF INFLAMMATION]. Klin Khir 2017:59-61. [PMID: 30273456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Significance of the tissues oedema and its elimination in the course of inflammation and the wound healing was investigated. There were analyzed the results of treatment of 68 patients, suffering inflammatory and necrotic affection of soft tissues, including 65 – a lower one, 3 – an upper. In 47 observations the affection course was an acute, while in 18 – chronic. In 36 patients (control group) a local and systemic antibacterial therapy were conducted, and in accordance to indications – surgical interventions; in 32 (main group) this treatment was added with tight bandaging of the extremity, using elastic bandage. Tight squeezing of tissues with the oedema elimination on background of an adequate antibacterial therapy and surgical sanation of purulent-necrotic focus is accompanied by arrest of infiltrative and exudative stages of an acute inflammation, promotes an active course of the inflammation proliferative stage. While treatment of chronic cutaneous defect, the application of tight squeezing have promoted the granulating shaft resolution, the granulation growth in the wound and its boundary epithelization.
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Kovalenko OM, Kovalenko AO, Osadcha OI. [IMPACT OF THE WOUND COVERINGS ON THE WOUND PH IN SUPERFICIAL BURNS OF THE SKIN]. Klin Khir 2017:28-30. [PMID: 30272936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Impact of the wounds coverings on the wounds contents pH in the injured persons, suffering superficial burns of skin, was studied. In 75 patients (the main group) the wounds treatment was accomplished under the wounds covering, in 35 of them xenotransplants were applied, and in 40 – coverings made of hydrogel. In 35 patients (the comparison group) the moisture-drying gauze bandages were used. There was established, that the wound indices of pH constitute an important factor for the burn wounds healing. The changes of the media pH towards the acid one under the wounds covering had stimulated the wounds healing and epithelization.
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Rajagopalan P, Nanjappa V, Raja R, Jain AP, Mangalaparthi KK, Sathe GJ, Babu N, Patel K, Cavusoglu N, Soeur J, Pandey A, Roy N, Breton L, Chatterjee A, Misra N, Gowda H. How Does Chronic Cigarette Smoke Exposure Affect Human Skin? A Global Proteomics Study in Primary Human Keratinocytes. OMICS 2016; 20:615-626. [PMID: 27828771 DOI: 10.1089/omi.2016.0123] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Cigarette smoking has been associated with multiple negative effects on human skin. Long-term physiological effects of cigarette smoke are through chronic and not acute exposure. Molecular alterations due to chronic exposure to cigarette smoke remain unclear. Primary human skin keratinocytes chronically exposed to cigarette smoke condensate (CSC) showed a decreased wound-healing capacity with an increased expression of NRF2 and MMP9. Using quantitative proteomics, we identified 4728 proteins, of which 105 proteins were overexpressed (≥2-fold) and 41 proteins were downregulated (≤2-fold) in primary skin keratinocytes chronically exposed to CSC. We observed an alteration in the expression of several proteins involved in maintenance of epithelial barrier integrity, including keratin 80 (5.3 fold, p value 2.5 × 10-7), cystatin A (3.6-fold, p value 3.2 × 10-3), and periplakin (2.4-fold, p value 1.2 × 10-8). Increased expression of proteins associated with skin hydration, including caspase 14 (2.2-fold, p value 4.7 × 10-2) and filaggrin (3.6-fold, p value 5.4 × 10-7), was also observed. In addition, we report differential expression of several proteins, including adipogenesis regulatory factor (2.5-fold, p value 1.3 × 10-3) and histone H1.0 (2.5-fold, p value 6.3 × 10-3) that have not been reported earlier. Bioinformatics analyses demonstrated that proteins differentially expressed in response to CSC are largely related to oxidative stress, maintenance of skin integrity, and anti-inflammatory responses. Importantly, treatment with vitamin E, a widely used antioxidant, could partially rescue adverse effects of CSC exposure in primary skin keratinocytes. The utility of antioxidant-based new dermatological formulations in delaying or preventing skin aging and oxidative damages caused by chronic cigarette smoke exposure warrants further clinical investigations and multi-omics research.
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Affiliation(s)
- Pavithra Rajagopalan
- 1 Institute of Bioinformatics , International Tech Park, Bangalore, India
- 2 School of Biotechnology, KIIT University , Bhubaneswar, India
| | - Vishalakshi Nanjappa
- 1 Institute of Bioinformatics , International Tech Park, Bangalore, India
- 3 Amrita School of Biotechnology , Amrita Vishwa Vidyapeetham, Kollam, India
| | - Remya Raja
- 1 Institute of Bioinformatics , International Tech Park, Bangalore, India
| | - Ankit P Jain
- 1 Institute of Bioinformatics , International Tech Park, Bangalore, India
- 2 School of Biotechnology, KIIT University , Bhubaneswar, India
| | - Kiran K Mangalaparthi
- 1 Institute of Bioinformatics , International Tech Park, Bangalore, India
- 3 Amrita School of Biotechnology , Amrita Vishwa Vidyapeetham, Kollam, India
| | - Gajanan J Sathe
- 1 Institute of Bioinformatics , International Tech Park, Bangalore, India
- 4 Manipal University , Manipal, India
| | - Niraj Babu
- 1 Institute of Bioinformatics , International Tech Park, Bangalore, India
| | - Krishna Patel
- 1 Institute of Bioinformatics , International Tech Park, Bangalore, India
- 3 Amrita School of Biotechnology , Amrita Vishwa Vidyapeetham, Kollam, India
| | | | - Jeremie Soeur
- 5 L'Oréal Research and Innovation , Aulnay Sous Bois, France
| | - Akhilesh Pandey
- 6 McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine , Baltimore, Maryland
- 7 Department of Biological Chemistry, Johns Hopkins University School of Medicine , Baltimore, Maryland
- 8 Department of Oncology, Johns Hopkins University School of Medicine , Baltimore, Maryland
- 9 Department of Pathology, Johns Hopkins University School of Medicine , Baltimore, Maryland
| | - Nita Roy
- 10 L'Oréal India, Bangalore, India
| | - Lionel Breton
- 5 L'Oréal Research and Innovation , Aulnay Sous Bois, France
| | - Aditi Chatterjee
- 1 Institute of Bioinformatics , International Tech Park, Bangalore, India
| | | | - Harsha Gowda
- 1 Institute of Bioinformatics , International Tech Park, Bangalore, India
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Dos Santos Gramma LS, Marques FM, Vittorazzi C, de Andrade TAM, Frade MAC, de Andrade TU, Endringer DC, Scherer R, Fronza M. Struthanthus vulgaris ointment prevents an over expression of inflammatory response and accelerates the cutaneous wound healing. J Ethnopharmacol 2016; 190:319-327. [PMID: 27329781 DOI: 10.1016/j.jep.2016.06.050] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Revised: 06/09/2016] [Accepted: 06/18/2016] [Indexed: 06/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Struthanthus vulgaris (Vell.) Mart. (Loranthaceae) has been largely used in traditional folk medicine in Brazil as an anti-inflammatory agent and to treat various skin disorders, including wounds. AIMS OF THE STUDY To investigated the influence of 5% Struthanthus vulgaris ointment during cutaneous wound healing in rats. MATERIALS AND METHODS Twenty Wistar rats were used in each group according the daily treatment, S. vulgaris 5% ointment (SV 5%) and vehicle control groups. Four full thicknesses wounds were punched in back side skin of each animal, and five animals were sacrificed after 2, 7, 14 and 21 days after surgery for histological, immunological and biochemical analysis. RESULTS A significant wound closured area in the S. vulgaris 5% group of about 38% and 35% as compared to 19% and 21% in the control group was observed after 2 and 5 days, respectively. Histological and biochemical analysis of the skin biopsies showed that S. vulgaris treated wounds exhibited increased granulation tissue and regulated the inflammatory response by modulating the release of pro and anti-inflammatory cytokines like IL-1α, TNF-α and IL-10, nitric oxide and, growth factors like TGF-β. Moreover, S. vulgaris showed a marked and robust increase in the deposition and organization of collagen fibers in the wounds, and improve the quality of the scar tissue. CONCLUSIONS Altogether these data revealed that S. vulgaris seems to prevent an over expression of inflammation and accelerates wound epithelialization and might be beneficial for treating healing disorders.
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Affiliation(s)
| | - Franciane Martins Marques
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Vila Velha, Vila Velha, Espirito Santo, Brazil
| | - Cátia Vittorazzi
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Vila Velha, Vila Velha, Espirito Santo, Brazil
| | | | - Marco Andrey Cipriani Frade
- Divisão de Dermatologia, Departamento de Clínica Médica, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Tadeu Uggere de Andrade
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Vila Velha, Vila Velha, Espirito Santo, Brazil
| | - Denise Coutinho Endringer
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Vila Velha, Vila Velha, Espirito Santo, Brazil
| | - Rodrigo Scherer
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Vila Velha, Vila Velha, Espirito Santo, Brazil
| | - Marcio Fronza
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Vila Velha, Vila Velha, Espirito Santo, Brazil.
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Lai JCY, Lai HY, Nalamolu KR, Ng SF. Treatment for diabetic ulcer wounds using a fern tannin optimized hydrogel formulation with antibacterial and antioxidative properties. J Ethnopharmacol 2016; 189:277-289. [PMID: 27208868 DOI: 10.1016/j.jep.2016.05.032] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2015] [Revised: 05/13/2016] [Accepted: 05/14/2016] [Indexed: 06/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Blechnum orientale Linn. (B. orientale) is a fern traditionally used by the natives as a poultice to treat wounds, boils, ulcers, blisters, abscesses, and sores on the skin. AIM OF THE STUDY To investigate the wound healing ability of a concentrated extract of B. orientale in a hydrogel formulation in healing diabetic ulcer wounds. MATERIALS AND METHODS The water extract from the leaves of B. orientale was separated from the crude methanolic extract and subjected to flash column chromatography techniques to produce concentrated fractions. These fractions were tested for phytochemical composition, tannin content, antioxidative and antibacterial activity. The bioactive fraction was formulated into a sodium carboxymethylcellulose hydrogel. The extract-loaded hydrogels were then characterized and tested on excision ulcer wounds of streptozotocin-induced diabetic rats. Wound size was measured for 14 days. Histopathological studies were conducted on the healed wound tissues to observe for epithelisation, fibroblast proliferation and angiogenesis. All possible mean values were subjected to statistical analysis using One-way ANOVA and post-hoc with Tukey's T-test (P<0.05). RESULTS One fraction exhibited strong antioxidative and antibacterial activity. The fraction was also highly saturated with tannins, particularly condensed tannins. Fraction W5-1 exhibited stronger antioxidant activity compared to three standards (α-Tocopherol, BHT and Trolox-C). Antibacterial activity was also present, and notably bactericidal towards Methicillin-resistant Staphylococcus aureus (MRSA) at 0.25mg/ml. The extract-loaded hydrogels exhibited shear-thinning properties, with high moisture retention ability. The bioactive fraction at 4% w/w was shown to be able to close diabetic wounds by Day 12 on average. Other groups, including controls, only exhibited wound closure by Day 14 (or not at all). Histopathological studies had also shown that extract-treated wounds exhibited re-epithelisation, higher fibroblast proliferation, collagen synthesis, and angiogenesis. CONCLUSION The ethnopharmacological effects of using B. orientale as a topical treatment for external wounds was validated and was also significantly effective in treating diabetic ulcer wounds. Thus, B. orientale extract hydrogel may be presented as a potential treatment for diabetic ulcer wounds.
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Affiliation(s)
- Jordan Chia-Yung Lai
- School of Biosciences, Taylor's University, No. 1, Jalan Taylor's, 47500 Subang Jaya, Malaysia
| | - How-Yee Lai
- School of Biosciences, Taylor's University, No. 1, Jalan Taylor's, 47500 Subang Jaya, Malaysia.
| | - Koteswara Rao Nalamolu
- School of Medicine, Taylor's University, No. 1, Jalan Taylor's, 47500 Subang Jaya, Malaysia
| | - Shiow-Fern Ng
- Centre of Drug Delivery Research, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, 50300 Kuala Lumpur, Malaysia
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Huang L, Minematsu T, Kitamura A, Quinetti PC, Nakagami G, Mugita Y, Oe M, Noguchi H, Mori T, Sanada H. Topical Administration of Acylated Homoserine Lactone Improves Epithelialization of Cutaneous Wounds in Hyperglycaemic Rats. PLoS One 2016; 11:e0158647. [PMID: 27404587 PMCID: PMC4942101 DOI: 10.1371/journal.pone.0158647] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Accepted: 06/20/2016] [Indexed: 01/13/2023] Open
Abstract
Clinicians often experience delayed epithelialization in diabetic patients, for which a high glucose condition is one of the causes. However, the mechanisms underlying delayed wound closure have not been fully elucidated, and effective treatments to enhance epithelialization in patients with hyperglycaemia have not been established. Here we propose a new reagent, acylated homoserine lactone (AHL), to improve the delayed epithelialization due to the disordered formation of a basement membrane of epidermis in hyperglycaemic rats. Acute hyperglycaemia was induced by streptozotocin injection in this experiment. Full thickness wounds were created on the flanks of hyperglycaemic or control rats. Histochemical and immunohistochemical analyses were performed to identify hyperglycaemia-specific abnormalities in epidermal regeneration by comparison between groups. We then examined the effects of AHL on delayed epithelialization in hyperglycaemic rats. Histological analysis showed the significantly shorter epithelializing tissue (P < 0.05), abnormal structure of basement membrane (fragmentation and immaturity), and hypo- and hyperproliferation of basal keratinocytes in hyperglycaemic rats. Treating the wound with AHL resulted in the decreased abnormalities of basement membrane, normal distribution of proliferating epidermal keratinocytes, and significantly promoted epithelialization (P < 0.05) in hyperglycemic rats, suggesting the improving effects of AHL on abnormal epithelialization due to hyperglycemia.
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Affiliation(s)
- Lijuan Huang
- Departments of Gerontological Nursing/Wound Care Management, Graduate School of Medicine, The University of Tokyo, Hongo, Tokyo, Japan
| | - Takeo Minematsu
- Departments of Gerontological Nursing/Wound Care Management, Graduate School of Medicine, The University of Tokyo, Hongo, Tokyo, Japan
- * E-mail: (HS); (T. Minematsu)
| | - Aya Kitamura
- Departments of Gerontological Nursing/Wound Care Management, Graduate School of Medicine, The University of Tokyo, Hongo, Tokyo, Japan
| | - Paes C. Quinetti
- Departments of Gerontological Nursing/Wound Care Management, Graduate School of Medicine, The University of Tokyo, Hongo, Tokyo, Japan
| | - Gojiro Nakagami
- Departments of Gerontological Nursing/Wound Care Management, Graduate School of Medicine, The University of Tokyo, Hongo, Tokyo, Japan
| | - Yuko Mugita
- Departments of Gerontological Nursing/Wound Care Management, Graduate School of Medicine, The University of Tokyo, Hongo, Tokyo, Japan
| | - Makoto Oe
- Department of Advanced Nursing Technology, Graduate School of Medicine, The University of Tokyo, Hongo, Tokyo, Japan
| | - Hiroshi Noguchi
- Department of Life Support Technology (Molten), Graduate School of Medicine, The University of Tokyo, Hongo, Tokyo, Japan
| | - Taketoshi Mori
- Department of Life Support Technology (Molten), Graduate School of Medicine, The University of Tokyo, Hongo, Tokyo, Japan
| | - Hiromi Sanada
- Departments of Gerontological Nursing/Wound Care Management, Graduate School of Medicine, The University of Tokyo, Hongo, Tokyo, Japan
- * E-mail: (HS); (T. Minematsu)
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Abstract
The development of novel therapies to treat chronic diabetic ulcers depends upon appropriate animal models for early stage investigation. The NONcNZO10/LtJ mouse is a new polygenic strain developed to more realistically model human metabolic syndrome and obesity-induced type 2 diabetes; however, detailed wound healing properties have not been reported. Herein, we describe a quantitative wound healing study in the NONcNZO10/LtJ mouse using a splinted excisional wound. The rate of wound healing is compared to various controls, and is also quantified in response to topical administration of normal and mutant fibroblast growth factor-1 (FGF-1). Quantitation of reepithelialization shows that the diabetic condition in the NONcNZO10/LtJ mouse is concomitant with a decreased rate of dermal healing. Furthermore, topical administration of a FGF-1/heparin formulation effectively accelerates reepithelialization. A similar acceleration can also be achieved by a stabilized mutant form of FGF-1 formulated in the absence of heparin. Such accelerated rates of healing are not associated with any abnormal histology in the healed wounds. The results identify the NONcNZO10/LtJ mouse as a useful model of impaired wound healing in type 2 diabetes, and further, identify engineered forms of FGF-1 as a potential “second-generation” therapeutic to promote diabetic dermal wound healing.
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