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Chen A, Gong M, Chi J, Wang Z, Dai L. Exploring the potential mechanisms of the ethyl acetate fraction of Hippophae rhamnoides L. seeds as a natural healing agent for wound repair. JOURNAL OF ETHNOPHARMACOLOGY 2024; 335:118688. [PMID: 39142622 DOI: 10.1016/j.jep.2024.118688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Revised: 08/08/2024] [Accepted: 08/09/2024] [Indexed: 08/16/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Sea buckthorn (Hippophae rhamnoides L.) has been designated a "medicine food homology" fruit by the National Health Commission of China due to its nutritional value. In traditional Chinese ethnomedicine, Hippophae rhamnoides L. is commonly used to treat nonhealing wounds such as burns, sores, and gastric ulcers. The aim of this study was to explore the healing effects of the ethyl acetate extract of sea buckthorn seeds (SBS-EF) on burn wounds. AIM OF THE STUDY The primary objectives of this research were to determine the most effective medicinal site of action for treating burns with sea buckthorn seeds (SBS) and to investigate the underlying material basis and mechanisms of their therapeutic effects. MATERIALS AND METHODS The effects of different components of SBS-EF on the proliferation and migration of human skin fibroblasts (HSFs) were evaluated via MTT assays, scratch assays, transwell assays, and hydroxyproline secretion analysis. SBS-EF displayed the greatest activity amongst the extracts. Subsequent analyses included network pharmacology methodology, molecular docking studies, ultraperformance liquid chromatography UPLC-Orbitrap-Exploris-120-MS and a severe second-degree burn rat model to investigate the chemical constituents and potential therapeutic mechanisms of the SBS-EF. RESULTS In vitro studies demonstrated the efficacy of SBS-EF in promoting HSF growth and migration. UPLC-Orbitrap-Exploris-120-MS analysis revealed that SBS-EF had ten major constituents, with flavonoids being the predominant compounds, especially catechin, quercetin, and kaempferol derivatives. Network pharmacology and molecular docking analyses indicated that SBS-EF may exert its healing effects by modulating the Wnt/β-catenin signalling pathway. Subsequent in vivo experiments demonstrated that SBS-EF accelerated burn wound healing in rats, increased hydroxyproline expression in skin tissue, facilitated skin structure repair, and enhanced collagen production and organisation over a 21 d period. Additionally, exposure to SBS-EF upregulated WNT3a and β-catenin while downregulating GSK-3β levels in rat skin tissue. CONCLUSIONS The wound healing properties of SBS-EF were attributed to its ability to enhance HSF growth and migration, increase hydroxyproline levels in the skin, promote collagen accumulation, reduce scarring, and decrease the skin water content. SBS-EF may also provide therapeutic benefits for burns by modulating the Wnt/β-catenin signalling pathway, as evidenced by its effective site and likely mechanism of action in the treatment of burned rats.
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Affiliation(s)
- Anying Chen
- Collaborative Innovation Center of Research and Development on the Whole Industry Chain of Yu-Yao, Henan Province, Henan University of Chinese Medicine, Henan, 450046, China; Engineering Technology Research Center for Comprehensive Development and Utilization of Authentic Medicinal Materials from Henan, Henan, 450046, China.
| | - Man Gong
- Collaborative Innovation Center of Research and Development on the Whole Industry Chain of Yu-Yao, Henan Province, Henan University of Chinese Medicine, Henan, 450046, China; Engineering Technology Research Center for Comprehensive Development and Utilization of Authentic Medicinal Materials from Henan, Henan, 450046, China.
| | - Jun Chi
- Collaborative Innovation Center of Research and Development on the Whole Industry Chain of Yu-Yao, Henan Province, Henan University of Chinese Medicine, Henan, 450046, China; Engineering Technology Research Center for Comprehensive Development and Utilization of Authentic Medicinal Materials from Henan, Henan, 450046, China.
| | - Zhimin Wang
- Collaborative Innovation Center of Research and Development on the Whole Industry Chain of Yu-Yao, Henan Province, Henan University of Chinese Medicine, Henan, 450046, China; Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Liping Dai
- Collaborative Innovation Center of Research and Development on the Whole Industry Chain of Yu-Yao, Henan Province, Henan University of Chinese Medicine, Henan, 450046, China; Engineering Technology Research Center for Comprehensive Development and Utilization of Authentic Medicinal Materials from Henan, Henan, 450046, China.
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Qin X, Song C, Yao L, Cai X, Xiao J. A Highly Specific and Versatile Biochip for Ultra-Sensitive Quantification of Denatured Collagen in Assessing Collagen Quality. Anal Chem 2024; 96:15640-15647. [PMID: 39231145 DOI: 10.1021/acs.analchem.4c02883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/06/2024]
Abstract
Collagen, a widely used biomaterial, is susceptible to denaturation during production from native tissues, posing serious challenges for its applications in tissue engineering. Accurate quantification of denatured collagen (DC) is essential for evaluating the quality of collagen-based biomaterials, yet quantitative methods for assessing collagen denaturation are lacking. Here, we for the first time present a highly specific biochip for sensitive quantification of denatured collagen levels (Ldc), addressing this critical need in collagen quality analysis. The denatured collagen-specific chip (DCSC) features an intrinsically nontrimerizing peptide probe, F-GOP-14, targeting denatured collagen and a fully denatured collagen-coated capture surface. The DCSC demonstrates exceptional sensitivity and accuracy in quantifying DC concentration (Cdc) and total collagen concentration (Ctc), enabling precise calculation of Ldc. Importantly, DCSC is versatile, detecting Ldc across various denaturing scenarios, including UV radiation, thermal environments, and decellularization. This denatured collagen-specific biochip offers a robust method for accurately analyzing Ldc, with significant potential for enhancing collagen quality assessment in biomaterial development and production.
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Affiliation(s)
- Xiaoyu Qin
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Chen Song
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Linyan Yao
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
- School of Life Sciences, Lanzhou University, Lanzhou 730000, China
| | - Xiangdong Cai
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
- School of Life Sciences, Lanzhou University, Lanzhou 730000, China
| | - Jianxi Xiao
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
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Mozaffari N, Mohammadi R, Delirezh N, Hobbenaghi R, Mohammadi V. Effect of macrophages combined with supernatant of mesenchymal stem cell culture and macrophage culture on wound healing in rats. Tissue Cell 2024; 90:102474. [PMID: 39079451 DOI: 10.1016/j.tice.2024.102474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 06/22/2024] [Accepted: 07/11/2024] [Indexed: 09/03/2024]
Abstract
Wound healing is an orderly sequence of events restoring the integrity of the damaged tissue. It consists of inflammatory, proliferation, and remodeling phases. The objective of the current study was to investigate the effect of local transplantation of cultured macrophage loaded with mesenchymal stem cell/macrophage culture supernatants on wound healing. Sixty-four healthy adult male Wistar rats were randomized into 4 groups of sixteen animals each: 1) SHAM group. 2) MAC-MSC/SN group: One-milliliter application of a mixture comprising mesenchymal stem cell and macrophage culture supernatants in a 1:1 ratio was administered locally to the wound bed. 3) MAC group: Local transplantation of macrophage cells cultured in the wound bed. 4) MAC + MAC-MSC/SN group: Local transplantation of cultured macrophage in combination with mesenchymal stem cell/ macrophage culture supernatants in the wound bed. An incisional wound model was used for biomechanical studies, while an excisional wound model was used for biochemical, histopathological, and planimetric assessments. The wound area was significantly reduced in the MAC + MAC-MSC/SN group compared to other groups (P < 0.05). Biomechanical measurements from the MAC + MAC-MSC/SN group were significantly higher compared to other experimental groups (P < 0.05). Biochemical and quantitative histopathological analyses revealed a significant difference between MAC + MAC-MSC/SN and other groups (P < 0.05). MAC + MAC-MSC/SN showed the potential to improve wound healing significantly. This appears to work by angiogenesis stimulation, fibroblast proliferation, inflammation reduction, and granulation tissue formation during the initial stages of the healing process. This accelerated healing leads to earlier wound area reduction and enhanced tensile strength of the damaged area due to the reorganization of granulation tissue and collagen fibers.
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Affiliation(s)
- Nima Mozaffari
- Department of Surgery and Diagnostic Imaging, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran
| | - Rahim Mohammadi
- Department of Surgery and Diagnostic Imaging, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran.
| | - Nowruz Delirezh
- Department of Microbiology, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran
| | - Rahim Hobbenaghi
- Department of Pathobiology, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran
| | - Vahid Mohammadi
- Department of Internal Medicine and Clinical Pathology, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran
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Karimi F, Montazeri-Najafabady N, Mohammadi F, Azadi A, Koohpeyma F, Gholami A. A potential therapeutic strategy of an innovative probiotic formulation toward topical treatment of diabetic ulcer: an in vivo study. Nutr Diabetes 2024; 14:66. [PMID: 39164243 PMCID: PMC11335896 DOI: 10.1038/s41387-024-00320-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 07/22/2024] [Accepted: 07/24/2024] [Indexed: 08/22/2024] Open
Abstract
BACKGROUND The probiotic potential of Lacticacid bacteria has been studied in various medical complications, from gastrointestinal diseases to antibiotic resistance infections recently. Moreover, diabetic ulcer (DU) is known as one of the most significant global healthcare concerns, which comprehensively impacts the quality of life for these patients. Given that the conventional treatments of DUs have failed to prevent later complications completely, developing alternative therapies seems to be crucial. METHODS We designed the stable oleogel-based formulation of viable probiotic cells, including Lactobacillus rhamnosus (L. rhamnosus), Lactobacillus casei (L. casei), Lactobacillus fermentum (L. fermentum), and Lactobacillus acidophilus (L. acidophilus) individually to investigate their effect on wound healing process as an in vivo study. The wound repair process was closely monitored regarding morphology, biochemical, and histopathological changes over two weeks and compared it with the effects of topical tetracycline as an antibiotic approach. Furthermore, the antibiofilm activity of probiotic bacteria was assessed against some common pathogens. RESULTS The findings indicated that all tested lactobacillus groups (excluded L. casei) included in the oleogel-based formulation revealed a high potential for repairing damaged skin due to the considerably more levels of hydroxyproline content of tissue samples along with the higher numerical density of mature fibroblasts cell and volume density of hair follicles, collagen fibrils, and neovascularization in comparison with antibiotic and control groups. L. acidophilus and L. rhamnosus showed the best potential of wound healing among all lactobacillus species, groups treated by tetracycline and control groups. Besides, L. rhamnosus showed a significant biofilm inhibition activity against tested pathogens. CONCLUSIONS This experiment demonstrated that the designed formulations containing probiotics, particularly L. acidophilus and L. rhamnosus, play a central role in manipulating diabetic wound healing. It could be suggested as an encouraging nominee for diabetic wound-healing alternative approaches, though further studies in detailed clinical trials are needed.
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Affiliation(s)
- Farkhonde Karimi
- Biotechnology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Fars, Iran
| | - Nima Montazeri-Najafabady
- Biotechnology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
- Endocrine and Metabolism Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Fatemeh Mohammadi
- Biotechnology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Amir Azadi
- Department of Pharmaceutics, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Farhad Koohpeyma
- Endocrine and Metabolism Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ahmad Gholami
- Biotechnology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Fars, Iran.
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Savekar PL, Nadaf SJ, Killedar SG, Kumbar VM, Hoskeri JH, Bhagwat DA, Gurav SS. Citric acid cross-linked pomegranate peel extract-loaded pH-responsive β-cyclodextrin/carboxymethyl tapioca starch hydrogel film for diabetic wound healing. Int J Biol Macromol 2024; 274:133366. [PMID: 38914385 DOI: 10.1016/j.ijbiomac.2024.133366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 06/11/2024] [Accepted: 06/21/2024] [Indexed: 06/26/2024]
Abstract
Pomegranate peel extract (PPE) hydrogel films filled with citric acid (CA) and β-cyclodextrin-carboxymethyl tapioca starch (CMS) were designed mainly to prevent wound infections and speed up the healing process. FTIR and NMR studies corroborated the carboxymethylation of neat tapioca starch (NS). CMS exhibited superior swelling behavior than NS. The amount of CA and β-CD controlled the physicochemical parameters of developed PPE/CA/β-CD/CMS films. Optimized film (OF) exhibited acceptable swellability, wound fluid absorptivity, water vapor transmission rate, water contact angle, and mechanical properties. Biodegradable, biocompatible, and antibacterial films exhibited pH dependence in the release of ellagic acid for up to 24 h. In mice model, PPE/CA/β-CD/CMS hydrogel film treatment showed promising wound healing effects, including increased collagen deposition, reduced inflammation, activation of the Wingless-related integration site (wnt) pathway leading to cell division, proliferation, and migration to the wound site. The expression of the WNT3A gene did not show any significant differences among all the studied groups. Developed PPE-loaded CA/β-CD/CMS film promoted wound healing by epithelialization, granulation tissue thickness, collagen deposition, and angiogenesis, hence could be recommended as a biodegradable and antibacterial hydrogel platform to improve the cell proliferation during the healing of diabetic wounds.
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Affiliation(s)
- Pranav L Savekar
- Shivraj College of Pharmacy, Gadhinglaj 416502, Maharashtra, India
| | - Sameer J Nadaf
- Bharati Vidyapeeth College of Pharmacy, Palus 416310, Maharashtra, India.
| | - Suresh G Killedar
- Anandi Pharmacy College, Kalambe Tarf Kale 416205, Maharashtra, India
| | - Vijay M Kumbar
- Dr. Prabhakar Kore Basic Science Research Centre, KLE Academy of Higher Education (KLE University), Nehru Nagar, Belagavi 590 010, Karnataka, India
| | - Joy H Hoskeri
- Department of Bioinformatics and Biotechnology, Karnataka State Akkamahadevi Women's University, Vijayapura, Karnataka, India
| | | | - Shailendra S Gurav
- Department of Pharmacognosy, Goa College of Pharmacy, Goa University, Goa 403001, India.
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Munhoz LLDS, Guillens LC, Alves BC, do Nascimento MGOF, Meneguin AB, Carbinatto FM, Arruda G, Barud HDS, de Aro A, Casagrande LDR, Silveira PCL, Andrade TAM, dos Santos GMT, Caetano GF. Bacterial nanocellulose/calcium alginate hydrogel for the treatment of burns. Acta Cir Bras 2024; 39:e393324. [PMID: 39016358 PMCID: PMC11249442 DOI: 10.1590/acb393324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Accepted: 04/04/2024] [Indexed: 07/18/2024] Open
Abstract
PURPOSE Bacterial cellulose (BC) has shown high capacity for the treatment of wounds and burns, providing a moisty environment. Calcium alginate can be associated with BC to create gels that aid in wound debridement and contribute to appropriate wound healing. This study is aimed at characterizing and evaluating the use of bacterial cellulose/alginate gel in skin burns in rats. METHODS Cellulose and cellulose/alginate gels were compared regarding the capacity of liquid absorption, moisture, viscosity, and potential cytotoxicity. The 2nd degree burns were produced using an aluminum metal plate (2.0cm) at 120ºC for 20s on the back of rats. The animals were divided into non-treated, CMC(Carboxymethylcellulose), Cellulose(CMC with bacterial cellulose), and Cellulose/alginate(CMC with bacterial cellulose and alginate). The animals received topical treatment 3 times/week. Biochemical (MPO, NAG and oxidative stress), histomorphometry and immunohistochemical assays (IL-1β IL-10 and VEGF) were conducted on the 14th, 21st, 28th, and 35th days. RESULTS Cellulose/Alginate gel showed higher absorption capacity and viscosity compared to Cellulose gel, with no cytotoxic effects. Cellulose/alginate presented lower MPO values, a higher percentage of IL-10, with greater and balanced oxidative stress profile. CONCLUSIONS The use of cellulose/alginate gel reduced neutrophils and macrophage activation and showed greater anti-inflammatory response, which can contribute to healing chronic wounds and burns.
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Affiliation(s)
| | - Luiz Carlos Guillens
- Centro Universitário Herminio Ometto de Araras – Graduate Program in Biomedical Sciences, Araras (SP), Brazil
| | - Beatriz Candido Alves
- Centro Universitário Herminio Ometto de Araras – Graduate Program in Biomedical Sciences, Araras (SP), Brazil
| | | | | | - Fernanda Mansano Carbinatto
- Universidade de Araraquara – BioPolymer and Biomaterial Laboratory, Araraquara (SP), Brazil
- Universidade de São Paulo – Institute of Physics, São Carlos (SP), Brasil
| | - Gabriela Arruda
- Universidade de Araraquara – BioPolymer and Biomaterial Laboratory, Araraquara (SP), Brazil
| | - Hernane da Silva Barud
- Universidade de Araraquara – BioPolymer and Biomaterial Laboratory, Araraquara (SP), Brazil
- Universidade de São Paulo – Institute of Physics, São Carlos (SP), Brasil
| | - Andrea de Aro
- Centro Universitário Herminio Ometto de Araras – Graduate Program in Biomedical Sciences, Araras (SP), Brazil
| | - Laura de Roch Casagrande
- Universidade do Extremo Sul Catarinense – Graduate Program in Science of Health – Criciúma (SC), Brazil
| | - Paulo Cesar Lock Silveira
- Universidade do Extremo Sul Catarinense – Graduate Program in Science of Health – Criciúma (SC), Brazil
| | | | | | - Guilherme Ferreira Caetano
- Centro Universitário Herminio Ometto de Araras – Graduate Program in Biomedical Sciences, Araras (SP), Brazil
- Centro Universitário Herminio Ometto de Araras – Graduate Program of Orthodontics, Araras (SP), Brazil
- Universidade de São Paulo – Ribeirão Preto Medical School, Ribeirão Preto (SP), Brazil
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El-Sheekh M, Bedaiwy M, Mansour H, El-Shenody RA. Efficiency of the fatty acids extracted from the microalga Parachlorella kessleri in wound-healing. Burns 2024; 50:924-935. [PMID: 38378390 DOI: 10.1016/j.burns.2024.01.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 01/13/2024] [Accepted: 01/15/2024] [Indexed: 02/22/2024]
Abstract
Wound healing is a physiological process that results in the reconstruction and restoration of granulation tissue, followed by scar formation. We explored the impact of fatty acids in the form of oils on wound healing since they are part of membrane phospholipids and participate in the inflammatory response. This work investigated the efficiency of fatty acids extracted from microalga Parachlorella kessleri in treating excisional wounds and burns and evaluated their antioxidant activity. The rationale behind this investigation lies in the integral role fatty acids play in membrane phospholipids and their involvement in the inflammatory response. Among different nitrogen sources, glycine showed the highest biomass and lipid productivity (0.08 g L-1 d-1 and 58.37 μgml-1 day-1, respectively). Based on the percentage of polyunsaturated fatty acids that increased by 50.38 % in the Glycine culture of P. kessleri, both total antioxidant capacity and DPPH radical scavenging activity were higher in the Glycine culture than control culture. In 30 anaesthetized male mice divided into 6 groups, using either a burn or an excision, two identical paravertebral full-thickness skin lesions were created. Either oils of P. kessleri (extracted from control and glycine culture) ointments or the vehicle (placebo cream) were applied twice daily to the excisional wounds of mice, while mebo cream was used for burn wounds as well as P. kessleri oil. P. kessleri oils (control or glycine culture) showed a significant effect on the reduction of excisional wounds and burns. Histopathological analysis showed that angiogenesis, collagen fiber formation, and epidermis creation were some of the healing indicators that improved. The key elements for this healing property are omega -3 fatty acids, and both P. kessleri oils extracted from control and glycine culture have significant wound-healing effects. Oil of glycine culture of P. kessleri, however, displayed superior results in this regard.
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Affiliation(s)
- Mostafa El-Sheekh
- Botany Department, Faculty of Science, Tanta University, Tanta 31527, Egypt.
| | - Mohamed Bedaiwy
- Botany Department, Faculty of Science, Tanta University, Tanta 31527, Egypt
| | - Heba Mansour
- Botany Department, Faculty of Science, Tanta University, Tanta 31527, Egypt
| | - Rania A El-Shenody
- Botany Department, Faculty of Science, Tanta University, Tanta 31527, Egypt
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Wang F, Zheng Y, Ning J. Biogenic preparation of copper oxide nanoparticles using table olive: Catalytic reduction, cytotoxicity, and burn wound healing activities. ENVIRONMENTAL RESEARCH 2023; 237:116995. [PMID: 37633630 DOI: 10.1016/j.envres.2023.116995] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 08/22/2023] [Accepted: 08/24/2023] [Indexed: 08/28/2023]
Abstract
Green strategy for the preparation of copper oxide nanoparticles (CuO NPs) using table olive has been researched in the present work. Some characterization assays viz., transmission electron microscopy (TEM), X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy-dispersive X-ray (EDX) was used for evaluation of the crystal structure, size and morphology of the manufactured NPs. As a catalyst, the prepared material demonstrated remarkable catalytic capability (>99% in 4 min) for the reduction of rhodamine B using sodium borohydride. In addition, the treated cells with the CuO NPs were examined by regarding the cytotoxicity properties on normal (HUVEC) cell line. The results showed that the prepared CuO NPs did not have any cytotoxicity effects on HUVEC (up to 500 μg/mL). Furthermore, in vivo experiments on burn wounds in rats show that the synthesized CuO NPs ointment significantly diminished (p ≤ 0.01) the wound area. On the other hand, the wound contracture factor was increased in comparison with the control groups. Collectively, the CuO NPs prepared by biological method have potential applications in organic pollutants reduction and wound care applications. In this viewpoint, CuO NPs may be considered as an effective for treatment of different wounds including burn wounds or injuries from surgeries such as plastic surgery.
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Affiliation(s)
- Fuyong Wang
- Burn and Plastic Surgery, Kaifeng Central Hospital, No. 153 Wufu Road, Kaifeng City, Henan Province, 475000, China
| | - Yuhong Zheng
- Burn and Plastic Surgery, Kaifeng Central Hospital, No. 153 Wufu Road, Kaifeng City, Henan Province, 475000, China
| | - Jing Ning
- Department of Medical Cosmetic, Burn and Plastic Surgery,Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan, 030032, China; Department of Medical Cosmetic, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
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Ahmed LM, Hassanein KMA, Mohamed FA, Elfaham TH. Formulation and evaluation of simvastatin cubosomal nanoparticles for assessing its wound healing effect. Sci Rep 2023; 13:17941. [PMID: 37864028 PMCID: PMC10589326 DOI: 10.1038/s41598-023-44304-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 10/06/2023] [Indexed: 10/22/2023] Open
Abstract
Wound healing is one of the most challenging medical circumstances for patients. Pathogens can infect wounds, resulting in tissue damage, inflammation, and disruption of the healing process. Simvastatin was investigated recently, as a wound healing agent that may supersede the present therapies for wounds. Our goal in this paper is to focus on formulation of simvastatin cubosomes for topical delivery, as a potential approach to improve simvastatin skin permeation. By this technique its wound healing effect could be improved. Cubosomes were prepared using the top-down method and the prepared cubosomes were characterized by several techniques. The most optimal simvastatin cubosomal formulation was then included in a cubogel dosage form using different gelling agents. The results showed that the average particle size of the prepared cubosomes was 113.90 ± 0.58 nm, the entrapment efficiency was 93.95 ± 0.49% and a sustained simvastatin release was achieved. The optimized formula of simvastatin cubogel displayed pseudoplastic rheological behavior. This same formula achieved enhancement in drug permeation through excised rat skin compared to free simvastatin hydrogel with flux values of 46.18 ± 2.12 mcg cm-2 h-1 and 25.92 ± 3.45 mcg cm-2 h-1 respectively. Based on the in-vivo rat studies results, this study proved a promising potential of simvastatin cubosomes as wound healing remedy.
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Affiliation(s)
- Lamiaa M Ahmed
- Department of Pharmaceutics, Faculty of Pharmacy, Assiut University, Assiut, 71526, Egypt
| | - Khaled M A Hassanein
- Department of Pathology and Clinical Pathology, Faculty of Veterinary Medicine, Assiut University, Assiut, 71526, Egypt
| | - Fergany A Mohamed
- Department of Pharmaceutics, Faculty of Pharmacy, Assiut University, Assiut, 71526, Egypt
| | - Tahani H Elfaham
- Department of Pharmaceutics, Faculty of Pharmacy, Assiut University, Assiut, 71526, Egypt.
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Guidoni M, de Sousa Júnior AD, Aragão VPM, de Melo Costa Pereira T, Dos Santos WC, Monteiro FC, Guimarães MCC, Fronza M. Liposomal stem cell extract formulation from Coffea canephora shows outstanding anti-inflammatory activity, increased tissue repair, neocollagenesis and neoangiogenesis. Arch Dermatol Res 2023; 315:491-503. [PMID: 36114867 DOI: 10.1007/s00403-022-02388-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 07/26/2022] [Accepted: 09/07/2022] [Indexed: 11/02/2022]
Abstract
Coffea canephora plant stem cells can have bioactive compounds with tissue repairing and anti-inflammatory action. This study aimed to develop a liposomal stem cell extract formulation obtained from the leaves of C. canephora (LSCECC) and to investigate its capacity to contribute to the dynamic mechanisms of tissue repair. The liposome cream was developed and characterized through the dynamic light scattering technique, atomic force microscopy, and transmission electron microscopy. The excisional full-thickness skin wound model was used and daily topically treated with the LSCECC formulation or vehicle control. On days 2, 7, 14, and 21 after wounding, five rats from each group were euthanized and the rates of wound closure and re-epithelialization were evaluated using biochemical and histological tests. LSCECC resulted in faster re-epithelialization exhibiting a significant reduction in wound area of 36.4, 42.4, and 87.5% after 7, 10, and 14 days, respectively, when compared to vehicle control. LSCECC treated wounds exhibited an increase in granular tissue and a proper inflammatory response mediated by the reduction of pro-inflammatory cytokines like TNF-α and IL-6 and an increase of IL-10. Furthermore, wounds treated with LSCECC showed an increase in the deposition and organization of collagen fibers at the wound site and improved scar tissue quality due to the increase in transforming growth factor-beta and vascular endothelial growth factor. Our data showed that LSCECC improves wound healing, the formation of extracellular matrix, modulates inflammatory response, and promotes neovascularization being consider a promising bioactive extract to promote and support healthy skin. The graphical presents the action of LSCECC in all four phases of wound healing and tissue repair. The LSCECC can reduce the inflammatory infiltrate in the inflammatory phase by decreasing the pro-inflammatory cytokines like IL-6 and TNF-α, in addition to maintaining this modulation through lesser activation and recruitment of macrophages. The LSCECC can also increase the release of IL-10, an anti-inflammatory cytokine, decreasing local edema. The increase in VEGF provides neovascularization and the supply of nutrients to newly repaired tissue. Finally, signaling via TGF-β increases the production and organization of collagen fibers in the remodeling phase.
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Affiliation(s)
- Marcio Guidoni
- Programa de Pós-Graduação em Ciências Farmacêuticas, Laboratório de Produtos Naturais, Universidade Vila Velha-UVV, Av. Comissário José Dantas de Melo, n°21, Boa Vista, Vila Velha, ES, 29102-920, Brazil
| | - Antônio Domingos de Sousa Júnior
- Programa de Pós-Graduação em Ciências Farmacêuticas, Laboratório de Produtos Naturais, Universidade Vila Velha-UVV, Av. Comissário José Dantas de Melo, n°21, Boa Vista, Vila Velha, ES, 29102-920, Brazil
| | - Victor Paulo Mesquita Aragão
- Pesquisador do Instituto Capixaba de Ciências e Administração (ICCA), Programa de Desenvolvimento Científico e Tecnológico Regional (FAPES/CNPq), Vila Velha, ES, Brazil
| | - Thiago de Melo Costa Pereira
- Programa de Pós-Graduação em Ciências Farmacêuticas, Laboratório de Produtos Naturais, Universidade Vila Velha-UVV, Av. Comissário José Dantas de Melo, n°21, Boa Vista, Vila Velha, ES, 29102-920, Brazil
| | - Wedson Correa Dos Santos
- Programa de Pós-Graduação em Ciências Farmacêuticas, Laboratório de Produtos Naturais, Universidade Vila Velha-UVV, Av. Comissário José Dantas de Melo, n°21, Boa Vista, Vila Velha, ES, 29102-920, Brazil
| | - Flavio Cunha Monteiro
- Pesquisador do Instituto Capixaba de Ciências e Administração (ICCA), Programa de Desenvolvimento Científico e Tecnológico Regional (FAPES/CNPq), Vila Velha, ES, Brazil
| | | | - Marcio Fronza
- Programa de Pós-Graduação em Ciências Farmacêuticas, Laboratório de Produtos Naturais, Universidade Vila Velha-UVV, Av. Comissário José Dantas de Melo, n°21, Boa Vista, Vila Velha, ES, 29102-920, Brazil.
- Pesquisador do Instituto Capixaba de Ciências e Administração (ICCA), Programa de Desenvolvimento Científico e Tecnológico Regional (FAPES/CNPq), Vila Velha, ES, Brazil.
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11
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Garbuio DC, Leite MN, Figueiredo SA, de Freitas LAP, de Carvalho EC, Frade MAC. Topical formulation containing chitosan-chamomile microparticles in cutaneous wound healing in rats. J Wound Care 2023; 32:xxii-xxx. [PMID: 36930193 DOI: 10.12968/jowc.2023.32.3.xxii] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Abstract
Objective: The aim of this research was to evaluate the efficacy of a topical formulation containing chitosan-chamomile microparticles in cutaneous healing in rats. Method: Male Wistar rats (n=57) were randomly distributed into three groups: treatment; vehicle; and control. Evaluations were performed on days 2, 7 and 14 after the surgical procedure using skin lesion photography, and histological and biochemical analyses. Results: The results showed that there was no difference in the healing index and in the histological analysis of the inflammatory infiltrate among groups. Fibrogenesis was more significant in the group treated with the test formulation at day 7, and angiogenesis was greater in the vehicle and chamomile groups at day 2. The quantification of hydroxyproline showed a higher amount of collagen in the group treated with chamomile, mainly at day 14, although the histological quantification of collagen showed no difference between the groups. Conclusion: From the results of this study, it can be concluded that the formulation, although it had no effect on the healing time, improved the quality of the cicatricial tissue formed with a greater quantity of fibroblasts and collagen.
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Affiliation(s)
| | - Marcel Nani Leite
- Ribeirão Preto Medical School at São Paulo University (FMRP/USP), Ribeirão Preto, SP, Brazil
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12
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Garbuio DC, Leite MN, Figueiredo SA, de Freitas LAP, de Carvalho EC, Frade MAC. Topical formulation containing chitosan-chamomile microparticles in cutaneous wound healing in rats. J Wound Care 2023; 32:xxii-xxx. [PMID: 36930537 DOI: 10.12968/jowc.2023.32.sup3a.xxii] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Abstract
Objective: The aim of this research was to evaluate the efficacy of a topical formulation containing chitosan-chamomile microparticles in cutaneous healing in rats. Method: Male Wistar rats (n=57) were randomly distributed into three groups: treatment; vehicle; and control. Evaluations were performed on days 2, 7 and 14 after the surgical procedure using skin lesion photography, and histological and biochemical analyses. Results: The results showed that there was no difference in the healing index and in the histological analysis of the inflammatory infiltrate among groups. Fibrogenesis was more significant in the group treated with the test formulation at day 7, and angiogenesis was greater in the vehicle and chamomile groups at day 2. The quantification of hydroxyproline showed a higher amount of collagen in the group treated with chamomile, mainly at day 14, although the histological quantification of collagen showed no difference between the groups. Conclusion: From the results of this study, it can be concluded that the formulation, although it had no effect on the healing time, improved the quality of the cicatricial tissue formed with a greater quantity of fibroblasts and collagen.
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Affiliation(s)
| | - Marcel Nani Leite
- Ribeirão Preto Medical School at São Paulo University (FMRP/USP), Ribeirão Preto, SP, Brazil
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13
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Ullah N, Khan D, Ahmed N, Zafar A, Shah KU, ur Rehman A. Lipase-sensitive fusidic acid polymeric nanoparticles based hydrogel for on-demand delivery against MRSA-infected burn wounds. J Drug Deliv Sci Technol 2023. [DOI: 10.1016/j.jddst.2022.104110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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14
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Erdi M, Rozyyev S, Balabhadrapatruni M, Saruwatari MS, Daristotle JL, Ayyub OB, Sandler AD, Kofinas P. Sprayable tissue adhesive with biodegradation tuned for prevention of postoperative abdominal adhesions. Bioeng Transl Med 2023; 8:e10335. [PMID: 36684071 PMCID: PMC9842025 DOI: 10.1002/btm2.10335] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 04/20/2022] [Accepted: 04/23/2022] [Indexed: 01/25/2023] Open
Abstract
Adhesions are dense, fibrous bridges that adjoin tissue surfaces due to uncontrolled inflammation following postoperative mesothelial injury. A widely used adhesion barrier material in Seprafilm often fails to prevent transverse scar tissue deposition because of its poor mechanical properties, rapid degradation profile, and difficulty in precise application. Solution blow spinning (SBS), a polymer fiber deposition technique, allows for the placement of in situ tissue-conforming and tissue-adherent scaffolds with exceptional mechanical properties. While biodegradable polymers such as poly(lactic-co-glycolic acid) (PLGA) have desirable strength, they exhibit bulk biodegradation rates and inflammatory profiles that limit their use as adhesion barriers and result in poor tissue adhesion. Here, viscoelastic poly(lactide-co-caprolactone) (PLCL) is used for its pertinent biodegradation mechanism. Because it degrades via surface erosion, spray deposited PLCL fibers can dissolve new connections formed by inflamed tissue, allowing them to function as an effective, durable, and easy-to-apply adhesion barrier. Degradation kinetics are tuned to match adhesion formation through the design of PLCL blends comprised of highly adhesive "low"-molecular weight (LMW) constituents in a mechanically robust "high"-molecular weight (HMW) matrix. In vitro studies demonstrate that blending LMW PLCL (30% w/v) with HMW PLCL (70% w/v) yields an anti-fibrotic yet tissue-adhesive polymer sealant with a 14-day erosion rate countering adhesion formation. PLCL blends additionally exhibit improved wet tissue adhesion strength (~10 kPa) over a 14-day period versus previously explored biodegradable polymer compositions, such as PLGA. In a mouse cecal ligation model, select PLCL blends significantly reduce abdominal adhesions severity versus no treatment and Seprafilm-treated controls.
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Affiliation(s)
- Metecan Erdi
- Department of Chemical and Biomolecular EngineeringUniversity of MarylandCollege ParkMarylandUSA
| | - Selim Rozyyev
- Sheikh Zayed Institute for Pediatric Surgical Innovation, Joseph E. Robert Jr. Center for Surgical CareChildren's National Medical CenterWashingtonDistrict of ColumbiaUSA
| | | | - Michele S. Saruwatari
- Sheikh Zayed Institute for Pediatric Surgical Innovation, Joseph E. Robert Jr. Center for Surgical CareChildren's National Medical CenterWashingtonDistrict of ColumbiaUSA
| | - John L. Daristotle
- David H. Koch Institute for Integrative Cancer ResearchMassachusetts Institute of TechnologyCambridgeMassachusettsUSA
| | - Omar B. Ayyub
- Department of Chemical and Biomolecular EngineeringUniversity of MarylandCollege ParkMarylandUSA
| | - Anthony D. Sandler
- Sheikh Zayed Institute for Pediatric Surgical Innovation, Joseph E. Robert Jr. Center for Surgical CareChildren's National Medical CenterWashingtonDistrict of ColumbiaUSA
| | - Peter Kofinas
- Department of Chemical and Biomolecular EngineeringUniversity of MarylandCollege ParkMarylandUSA
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15
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Mohammadi M, Kohan L, Saeidi M, Saghaeian Jazi M, Mohammadi S. The antifibrotic effects of naringin in a hypochlorous acid (HOCl)-induced mouse model of skin fibrosis. Immunopharmacol Immunotoxicol 2022; 44:704-711. [PMID: 35583493 DOI: 10.1080/08923973.2022.2077217] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 05/07/2022] [Indexed: 02/08/2023]
Abstract
OBJECTIVES Fibrosis is a chronic inflammation caused by the loss of innate compensational mechanisms. Naringin (NR) is a flavonoid with antineoplastic and anti-inflammatory effects. Here, we aimed to investigate the antifibrotic effects of NR and underlying mechanisms in a Hypochlorous acid (HOCl)-induced mouse model of skin fibrosis. MATERIALS AND METHODS A total of 24 six-week-old female BALB/c mice were randomly allocated into five groups: HOCl, Sham, PBS, HOCl + NR and DMSO and selected skin regions were treated for 6 weeks, until sacrifice. The histopathologic and collagenesis of skin resections were analyzed using H&E and PR staining. The mRNA levels of COL1, COL3 and αSMA genes were quantified. Serum samples were also used to evaluate TGF-β levels and LDH activity. RESULTS HOCl could increase the relative collagen content, while NR administration on HOCl-treated biopsies decreased collagenesis. COL1, COL3 and αSMA mRNA levels were significantly increased among HOCl-treated skin samples, while NR treatment could decrease these mRNA levels of genes to the extent equal to the levels in the Sham group. Similarly, Naringin-treated samples could decrease TGF-β levels. CONCLUSIONS We demonstrated that Naringin could exert protective effects against fibrotic complications of HOCL in skin tissue in vivo, by reducing the collagenesis and decreasing the levels of fibrosis-associated genes.
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Affiliation(s)
- Mahmoud Mohammadi
- Department of Biology, Islamic Azad University, Arsanjan Branch, Arsanjan, Iran
| | - Leila Kohan
- Department of Biology, Islamic Azad University, Arsanjan Branch, Arsanjan, Iran
| | - Mohsen Saeidi
- Stem Cell Research Center, Golestan University of Medical Sciences, Gorgan, Iran
- Department of Medical Immunology, Golestan University of Medical Sciences, Gorgan, Iran
| | - Marie Saghaeian Jazi
- Stem Cell Research Center, Golestan University of Medical Sciences, Gorgan, Iran
- Metabolic Disorders Research Center, Golestan University of Medical Sciences, Gorgan, Iran
| | - Saeed Mohammadi
- Stem Cell Research Center, Golestan University of Medical Sciences, Gorgan, Iran
- Infectious Diseases Research Center, Golestan University of Medical Sciences, Gorgan, Iran
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In Vivo Comparison of Synthetic Macroporous Filamentous and Sponge-like Skin Substitute Matrices Reveals Morphometric Features of the Foreign Body Reaction According to 3D Biomaterial Designs. Cells 2022; 11:cells11182834. [PMID: 36139409 PMCID: PMC9496825 DOI: 10.3390/cells11182834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 09/05/2022] [Accepted: 09/07/2022] [Indexed: 11/17/2022] Open
Abstract
Synthetic macroporous biomaterials are widely used in the field of skin tissue engineering to mimic membrane functions of the native dermis. Biomaterial designs can be subclassified with respect to their shape in fibrous designs, namely fibers, meshes or fleeces, respectively, and porous designs, such as sponges and foams. However, synthetic matrices often have limitations regarding unfavorable foreign body responses (FBRs). Severe FBRs can result in unfavorable disintegration and rejection of an implant, whereas mild FBRs can lead to an acceptable integration of a biomaterial. In this context, comparative in vivo studies of different three-dimensional (3D) matrix designs are rare. Especially, the differences regarding FBRs between synthetically derived filamentous fleeces and sponge-like constructs are unknown. In the present study, the FBRs on two 3D matrix designs were explored after 25 days of subcutaneous implantation in a porcine model. Cellular reactions were quantified histopathologically to investigate in which way the FBR is influenced by the biomaterial architecture. Our results show that FBR metrics (polymorph-nucleated cells and fibrotic reactions) were significantly affected according to the matrix designs. Our findings contribute to a better understanding of the 3D matrix tissue interactions and can be useful for future developments of synthetically derived skin substitute biomaterials.
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17
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Abouzaid AM, El Mokadem ME, Aboubakr AK, Kassem MA, Al Shora AK, Solaiman A. Effect of autologous fat transfer in acute burn wound management: A randomized controlled study. Burns 2022; 48:1368-1385. [PMID: 34906386 DOI: 10.1016/j.burns.2021.10.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 09/28/2021] [Accepted: 10/22/2021] [Indexed: 01/02/2023]
Abstract
OBJECTIVE The use of fat grafting is being widely used for different indications one of which is wound healing. In this study we compare the use of autologous fat grafting (AFG) as a novel indication in acute burn wounds healing and burn scarring to the conventional methods of burn wound management both clinically and histologically. Several small observational studies demonstrated the effect of the AFG in healing of chronic wounds, different vascular ulcers or effect on scars yet no randomized controlled trial is available to compare its role with conventional methods. METHODS The study was a prospective, open-label single center, randomized control clinical trial included 100 patients with superficial and deep dermal burns from March 2019 to March 2020 randomized to AFG protocol consisted of a single injection of autologous fat grafting then dressed with nano fat (Group A) or conventional methods of serial dressings with 1% silver sulphadiazine or other topical agents (Group B). Inclusion criteria included newly admitted burn patients with affected total body surface area (TBSA) (10%-25%) while exclusion criteria included burns patients with affected TBSA of< 10% or> 25%, or loss of subcutaneous fat, fascia, muscles and bones, inhalational burn, and burns in genitalia, perineum and peri-anal areas and co-morbidity(ies) that might affect wound healing or eligibility for anaesthesia and surgery. Also, results were confirmed by histological analysis for samples from both groups by light microscopic examination, and the nano-fat was subjected to flow cytometric analysis of the cluster of differentiation (CD) markers of mesenchymal stem cells markers CD 90, CD44, CD45, CD 73, and CD 34. (ClinicalTrials.gov Identifier: NCT03791710) RESULTS: We found a significant reduction in total hospital stay days (p = <0.001), less further skin grafting (p = 0.003), less contracture formation (p = <0.002) while scar texture improved (p = <0.001) in group A compared to group B. Flow cytometric analysis documented that the nano-fat was positive to CD 90, 73, 44, 45 and 34. CONCLUSION In a comparison between AFG protocol to the conventional methods in the treatment of acute burn wounds, AFG protocol was associated with significant clinical improvement in the form of lower hospital stay time, lower incidence of scaring or contracture and lower skin grafting use which was confirmed by serial photographic and histological assessment.
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Affiliation(s)
- Ahmed M Abouzaid
- Aboqir General Hospital, Plastic, Reconstructive Surgery, and Burn Therapy Department, Alexandria, Egypt.
| | - Mohamed E El Mokadem
- Aboqir General Hospital, Plastic, Reconstructive Surgery, and Burn Therapy Department, Alexandria, Egypt
| | - Ahmed K Aboubakr
- Aboqir General Hospital, Plastic, Reconstructive Surgery, and Burn Therapy Department, Alexandria, Egypt
| | - Mohamed A Kassem
- Aboqir General Hospital, Plastic, Reconstructive Surgery, and Burn Therapy Department, Alexandria, Egypt
| | - Ahmed K Al Shora
- Aboqir General Hospital, Plastic, Reconstructive Surgery, and Burn Therapy Department, Alexandria, Egypt
| | - Amany Solaiman
- Histology and Cell Biology Department, Faculty of Medicine, Alexandria University, Egypt
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18
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Liu X, Zhao L, Chen Y, Gao Y, Tian Q, Son JS, Chae SA, de Avila JM, Zhu MJ, Du M. Obesity induces adipose fibrosis and collagen cross-linking through suppressing AMPK and enhancing lysyl oxidase expression. Biochim Biophys Acta Mol Basis Dis 2022; 1868:166454. [PMID: 35644337 PMCID: PMC9990697 DOI: 10.1016/j.bbadis.2022.166454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 05/17/2022] [Accepted: 05/22/2022] [Indexed: 10/18/2022]
Abstract
Collagen is the main component of connective tissue surrounding adipocytes. Collagen cross-linking affects adipose remodeling, which is crucial for maintaining function and metabolic homeostasis of adipose tissue. However, the effects of obesity on collagen cross-linking and adipose fibrosis remain to be examined. Therefore, the objective of this study was to investigate obesity-induced collagen cross-linking in adipose tissue and explore the underlying mechanisms. We found that obesity increased mature nonreducible collagen cross-linking in white adipose tissue (WAT) of mice, which was associated with inhibition of AMPK, up-regulation of transforming growth factor-β (TGF-β) signaling and the expression of lysyl oxidase (LOX), a key enzyme catalyzing the synthesis of mature cross-linking products. In SVCs and 3T3-L1 adipocytes, AMPK activation by metformin or AICAR inhibited TGF-β1-induced fibrogenesis and expression of LOX, which was further confirmed by ectopic expression of AMPK WT and K45R mutant. Consistently, in vivo, knocking out AMPK increased fibrosis and collagen cross-linking. Our study showed that AMPK downregulation due to obesity increases TGF-β signaling and LOX expression, which enhances adipose fibrosis and collagen cross-linking. Thus, AMPK is a therapeutic target for ameliorating the obesity-induced fibrosis, improving metabolic health of adipose tissue.
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Affiliation(s)
- Xiangdong Liu
- Laboratory of Nutrigenomics and Growth Biology, Department of Animal Sciences, Washington State University, Pullman, USA
| | - Liang Zhao
- Laboratory of Nutrigenomics and Growth Biology, Department of Animal Sciences, Washington State University, Pullman, USA
| | - Yanting Chen
- Laboratory of Nutrigenomics and Growth Biology, Department of Animal Sciences, Washington State University, Pullman, USA
| | - Yao Gao
- Laboratory of Nutrigenomics and Growth Biology, Department of Animal Sciences, Washington State University, Pullman, USA
| | - Qiyu Tian
- Laboratory of Nutrigenomics and Growth Biology, Department of Animal Sciences, Washington State University, Pullman, USA
| | - Jun Seok Son
- Laboratory of Nutrigenomics and Growth Biology, Department of Animal Sciences, Washington State University, Pullman, USA
| | - Song Ah Chae
- Laboratory of Nutrigenomics and Growth Biology, Department of Animal Sciences, Washington State University, Pullman, USA
| | - Jeanene Marie de Avila
- Laboratory of Nutrigenomics and Growth Biology, Department of Animal Sciences, Washington State University, Pullman, USA
| | - Mei-Jun Zhu
- School of Food Science, Washington State University, Pullman, USA
| | - Min Du
- Laboratory of Nutrigenomics and Growth Biology, Department of Animal Sciences, Washington State University, Pullman, USA.
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19
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Topical application of melatonin accelerates the maturation of skin wounds and increases collagen deposition in a rat model of diabetes. J Tissue Viability 2022; 31:606-613. [DOI: 10.1016/j.jtv.2022.07.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 03/10/2022] [Accepted: 07/28/2022] [Indexed: 11/20/2022]
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20
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Prawira AY, Novelina S, Farida WR, Darusman HS, Warita K, Hosaka YZ, Agungpriyono S. Determination of thick and thin fibres distribution in Sunda porcupine dorsal skin (Hystrix javanica) using Picrosirius red staining. Anat Histol Embryol 2022; 51:666-673. [PMID: 35899393 DOI: 10.1111/ahe.12845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 07/07/2022] [Accepted: 07/13/2022] [Indexed: 11/28/2022]
Abstract
The complexity of the Sunda porcupine skin has become an important topic due to the unique characteristics of its quill follicles. The structure and chemical composition of the skin has affected many physiological and other conditions. Generally, quills are larger, stronger and stiffer than hair; therefore, the skin structure needs to adapt to support their physiology. The strength of the skin is determined by its collagen composition and arrangement; therefore, this study aims to analyse the composition and distribution of thick and thin fibres based on the specific characteristics of Sunda porcupine skin under polarized light using picrosirius red staining. The skin samples used were from the thoracodorsal and lumbosacral regions of eight Sunda porcupine adults. The histological staining was carried out using the picrosirius red method, while the samples were observed under a polarized light microscope and analysed with software. The results showed that the skin is composed of 36%-65% thick fibres, 20%-35% thin fibres and small amounts of other types with the lumbosacral region having higher compositions of thick and thin fibres than those in the thoracodorsal region. Furthermore, the thoracodorsal and lumbosacral regions have the highest composition of thick fibre in the deeper dermis and quill follicle, respectively. These demonstrated that the complexity of the skin structure of Sunda porcupine due to its quill derivates correlated with its collagen composition and distribution.
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Affiliation(s)
- Andhika Yudha Prawira
- Department of Anatomy Physiology and Pharmacology, Faculty of Veterinary Medicine, IPB University, Bogor, Indonesia.,Research Center for Applied Zoology, Research Organization for Life Science and Environment, National Research and Innovation Agency (BRIN), Cibinong, Indonesia
| | - Savitri Novelina
- Department of Anatomy Physiology and Pharmacology, Faculty of Veterinary Medicine, IPB University, Bogor, Indonesia
| | - Wartika Rosa Farida
- Research Center for Applied Zoology, Research Organization for Life Science and Environment, National Research and Innovation Agency (BRIN), Cibinong, Indonesia
| | - Huda Shalahudin Darusman
- Department of Anatomy Physiology and Pharmacology, Faculty of Veterinary Medicine, IPB University, Bogor, Indonesia.,Primate Research Center, IPB University, Bogor, Indonesia
| | - Katsuhiko Warita
- Laboratory of Veterinary Anatomy, Department of Veterinary Medicine, Faculty of Agriculture, Tottori University, Tottori, Japan
| | - Yoshinao Z Hosaka
- Laboratory of Veterinary Anatomy, Department of Veterinary Medicine, Faculty of Agriculture, Tottori University, Tottori, Japan
| | - Srihadi Agungpriyono
- Department of Anatomy Physiology and Pharmacology, Faculty of Veterinary Medicine, IPB University, Bogor, Indonesia
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21
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Komprda T, Sládek Z, Vícenová M, Simonová J, Franke G, Lipový B, Matejovičová M, Kacvinská K, Sabliov C, Astete CE, Levá L, Popelková V, Bátik A, Vojtová L. Effect of Polymeric Nanoparticles with Entrapped Fish Oil or Mupirocin on Skin Wound Healing Using a Porcine Model. Int J Mol Sci 2022; 23:ijms23147663. [PMID: 35887016 PMCID: PMC9318284 DOI: 10.3390/ijms23147663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 06/30/2022] [Accepted: 07/04/2022] [Indexed: 11/16/2022] Open
Abstract
The utilization of poly(lactic-co-glycolic) acid (PLGA) nanoparticles (NPs) with entrapped fish oil (FO) loaded in collagen-based scaffolds for cutaneous wound healing using a porcine model is unique for the present study. Full-depth cutaneous excisions (5 × 5 cm) on the pig dorsa were treated with pure collagen scaffold (control, C), empty PLGA NPs (NP), FO, mupirocin (MUP), PLGA NPs with entrapped FO (NP/FO) and PLGA NPs with entrapped MUP (NP/MUP). The following markers were evaluated on days 0, 3, 7, 14 and 21 post-excision: collagen, hydroxyproline (HP), angiogenesis and expressions of the COX2, EGF, COL1A1, COL1A3, TGFB1, VEGFA, CCL5 and CCR5 genes. The hypothesis that NP/FO treatment is superior to FO alone and that it is comparable to NP/MUP was tested. NP/FO treatment increased HP in comparison with both FO alone and NP/MUP (day 14) but decreased (p < 0.05) angiogenesis in comparison with FO alone (day 3). NP/FO increased (p < 0.05) the expression of the CCR5 gene (day 3) and tended (p > 0.05) to increase the expressions of the EGF (day 7, day 14), TGFB1 (day 21) and CCL5 (day 7, day 21) genes as compared with NP/MUP. NP/FO can be suggested as a suitable alternative to NP/MUP in cutaneous wound treatment.
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Affiliation(s)
- Tomáš Komprda
- Department of Food Technology, Mendel University in Brno, Zemedelska 1, 613 00 Brno, Czech Republic; (J.S.); (G.F.); (M.M.); (V.P.)
- Correspondence:
| | - Zbyšek Sládek
- Department of Animal Morphology, Physiology and Genetics, Mendel University in Brno, Zemedelska 1, 613 00 Brno, Czech Republic; (Z.S.); (A.B.)
| | - Monika Vícenová
- Department of Infectious Diseases and Preventive Medicine, Veterinary Research Institute, Hudcova 296/70, 621 00 Brno, Czech Republic; (M.V.); (L.L.)
| | - Jana Simonová
- Department of Food Technology, Mendel University in Brno, Zemedelska 1, 613 00 Brno, Czech Republic; (J.S.); (G.F.); (M.M.); (V.P.)
| | - Gabriela Franke
- Department of Food Technology, Mendel University in Brno, Zemedelska 1, 613 00 Brno, Czech Republic; (J.S.); (G.F.); (M.M.); (V.P.)
| | - Břetislav Lipový
- Department of Burns and Plastic Surgery, Faculty of Medicine, Institution Shared with University Hospital Brno, Masaryk University, 625 00 Brno, Czech Republic;
- Central European Institute of Technology, University of Technology, Purkynova 123, 612 00 Brno, Czech Republic; (K.K.); (L.V.)
| | - Milena Matejovičová
- Department of Food Technology, Mendel University in Brno, Zemedelska 1, 613 00 Brno, Czech Republic; (J.S.); (G.F.); (M.M.); (V.P.)
| | - Katarína Kacvinská
- Central European Institute of Technology, University of Technology, Purkynova 123, 612 00 Brno, Czech Republic; (K.K.); (L.V.)
| | - Cristina Sabliov
- Department of Biological and Agricultural Engineering, Louisiana State University, Baton Rouge, LA 70803, USA; (C.S.); (C.E.A.)
| | - Carlos E. Astete
- Department of Biological and Agricultural Engineering, Louisiana State University, Baton Rouge, LA 70803, USA; (C.S.); (C.E.A.)
| | - Lenka Levá
- Department of Infectious Diseases and Preventive Medicine, Veterinary Research Institute, Hudcova 296/70, 621 00 Brno, Czech Republic; (M.V.); (L.L.)
| | - Vendula Popelková
- Department of Food Technology, Mendel University in Brno, Zemedelska 1, 613 00 Brno, Czech Republic; (J.S.); (G.F.); (M.M.); (V.P.)
| | - Andrej Bátik
- Department of Animal Morphology, Physiology and Genetics, Mendel University in Brno, Zemedelska 1, 613 00 Brno, Czech Republic; (Z.S.); (A.B.)
| | - Lucy Vojtová
- Central European Institute of Technology, University of Technology, Purkynova 123, 612 00 Brno, Czech Republic; (K.K.); (L.V.)
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Meng L, Li S, Wanyan C. Design and evaluation of a novel nano copper/chitosan–starch bio-composite on antimicrobial property and wound-healing efficacy. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109433] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Immortelle essential oil-based ointment improves wound healing in a diabetic rat model. Biomed Pharmacother 2022; 150:112941. [PMID: 35429742 DOI: 10.1016/j.biopha.2022.112941] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 04/06/2022] [Accepted: 04/06/2022] [Indexed: 11/22/2022] Open
Abstract
The phytochemical analysis of the investigated Immortelle essential oil revealed the presence of monoterpenes and sesquiterpenes as major components that might be efficient as a wound healing potential agent. The present study aimed to develop an ointment based on the Immortelle essential oil and investigate its wound healing effects on excision wounds in diabetic rats. The topical formulated Immortelle ointment was subjected to pharmaco-technical characterization. Thirty-two diabetic rats with the induced excision wound were used to evaluate in vivo wound healing effects of ointment. The animals were randomly divided into four groups untreated or topically treated with either a 1% silver sulfadiazine, the ointment base, or Immortelle ointment. The response to the treatment was assessed by macroscopic, biochemical and histopathological analysis. The ointment, compatible with the skin remained stable for 6 months. Topical application of the Immortelle ointment showed the highest wound contraction with the highest content of hydroxyproline in comparison to the all examined groups. The Immortelle ointment showed significant wound contraction from day 7 to day 21 as compared to other groups. On the day 21, there was an average of 99.32% wound contraction in the Immortelle group, whereas the mean wound contraction in the negative control and ointment base group was 71.36% and 81.26% respectively. The histopathological results validated the potential wound healing effect of Immortelle ointment with evident post-excision scar maturation and increased collagen fibers density. Our findings revealed that the Immortelle ointment approach might serve as a promising and innovative tool for wound healing.
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Label-free Raman spectroscopy characterizes signatures of inflammation and fibrosis in the silicosis. Biochem Biophys Res Commun 2022; 606:114-120. [PMID: 35344708 DOI: 10.1016/j.bbrc.2022.03.107] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 03/19/2022] [Accepted: 03/21/2022] [Indexed: 12/29/2022]
Abstract
Silicosis is an occupational disease that seriously damages the life and health of miners. Herein, we constructed a mouse model of silicosis and used label-free confocal Raman spectroscopy to analyze the biomolecular variations in lung fibrous nodules and inflammatory sites. The mice were exposed to silica particles for 1 month (SIL-1M group), 3 months (SIL-3M group), or no exposure (control tissues, NS). Raman spectra obtained from treated and untreated lung tissue were subjected to chemometric analysis to quantify biochemical composition differences in the silicosis. Simultaneously, immunohistochemistry and collagen staining were used to evaluate inflammation, fibrosis, and apoptosis. As a result, the SIL-1M and SIL-3M groups showed significant differences in cholesterol, lipids, amino acids, nucleic acids, and cytochrome C, and the collagen peaks at 1248 cm-1 and 1448 cm-1 were significantly higher than in the NS group. Notably, glycogen and phospholipid may be an inflammatory indicator consistent with NF-κB expression. In addition, significant differences in collagen and cytochrome C content in silicosis lung tissue were found using Raman spectroscopy and were verified by Masson's staining and Bax/Bcl-2 expression ratio. In summary, our findings provide a label-free technique to understand the biochemical changes in lung inflammatory and fibrosis microenvironment after exposure to silica particles and provide a valuable reference for studying the mechanism of silicosis.
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Influence of hydrophilic polymers on mechanical property and wound recovery of hybrid bilayer wound dressing system for delivering thermally unstable probiotic. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2022; 135:112696. [DOI: 10.1016/j.msec.2022.112696] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Revised: 01/04/2022] [Accepted: 01/31/2022] [Indexed: 12/26/2022]
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Phenytoin-loaded bioactive nanoparticles for the treatment of diabetic pressure ulcers: formulation and in vitro/in vivo evaluation. Drug Deliv Transl Res 2022; 12:2936-2949. [PMID: 35403947 PMCID: PMC9636106 DOI: 10.1007/s13346-022-01156-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/27/2022] [Indexed: 12/16/2022]
Abstract
Drug repurposing offers the chance to explore the full potential of existing drugs while reducing drug development time and costs. For instance, the anticonvulsant drug phenytoin (PHT) has been investigated for its wound healing properties. However, its poor solubility and variability of doses used topically limit its use. Hence, the aim of this study was to improve the properties and wound healing efficacy of PHT for the treatment of diabetic bedsores. PHT was encapsulated, using a modified ionic gelation method, in either positively or negatively charged chitosan-alginate nanoparticles (NPs), which possess previously demonstrated wound healing potential. These NPs were characterized by transmission electron microscopy, differential scanning calorimetry, and Fourier-transform infrared spectroscopy. PHT-loaded NPs were evaluated in vivo for their pressure ulcers' healing potential using diabetic rats. The prepared NPs, especially the positively charged particles, exhibited superior wound healing efficacy compared to PHT suspension, with respect to healing rates, granulation tissue formation, tissue maturation, and collagen content. The positively charged NPs resulted in a 56.54% wound closure at day 7, compared to 37% for PHT suspension. Moreover, skin treated with these NPs showed a mature dermis structure with skin appendages, which were absent in all other groups, in addition to the highest collagen content of 63.65%. In conclusion, the use of a bioactive carrier enhanced the healing properties of PHT and allowed the use of relatively low doses of the drug. Our findings suggest that the prepared NPs offer an effective antibiotic-free delivery system for diabetic wound healing applications.
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A Novel Effective Formulation of Bioactive Compounds for Wound Healing: Preparation, In Vivo Characterization, and Comparison of Various Postbiotics Cold Creams in a Rat Model. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2021; 2021:8577116. [PMID: 34917159 PMCID: PMC8670929 DOI: 10.1155/2021/8577116] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 11/20/2021] [Indexed: 02/07/2023]
Abstract
The wound is a break in the integrity of the skin produced by injury, illness, or operation. Wound healing is an essential dynamic biological/physiological process that occurs in response to tissue damage. The huge health, economic, and social effects of wounds on patients and societies necessitate the research to find novel potential therapeutic agents in order to promote wound healing. Postbiotics, the newest member of the biotics family, are valuable functional bioactive substances produced by probiotics through their metabolic activity, which have several beneficial properties, including immunomodulatory, anti-inflammatory, antimicrobial, and angiogenesis characteristics, resulting in acceleration of wound healing. In the current study, three topical cold cream formulations containing postbiotics obtained from Lactobacillus fermentum, Lactobacillus reuteri, or Bacillus subtilis sp. natto probiotic strains were prepared. The effectiveness and wound healing activity of the developed postbiotics cold cream formulations were investigated compared to cold cream without postbiotics and no treatment via wound closure investigation, hydroxyproline content assay, and histological assessment in 25 Sprague Dawley rats divided into five groups. Interestingly, analysis of the results revealed that all three formulations containing postbiotics significantly accelerated the wound healing process. However, in general, the Bacillus subtilis natto cold cream manifested a better wound healing property. The pleasing wound healing characteristics of the topical postbiotics cold creams through the in vivo experiment suggest that formulations containing postbiotics can be considered as a promising nominee for wound healing approaches.
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Dwivedi KK, Lakhani P, Kumar S, Kumar N. A hyperelastic model to capture the mechanical behaviour and histological aspects of the soft tissues. J Mech Behav Biomed Mater 2021; 126:105013. [PMID: 34920323 DOI: 10.1016/j.jmbbm.2021.105013] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 11/10/2021] [Accepted: 11/27/2021] [Indexed: 11/19/2022]
Abstract
It is well established that the soft connective tissues show a nonlinear elastic response that comes from their microstructural arrangement. Tissues' microstructure alters with various physiological conditions and may affect their mechanical responses. Therefore, the accurate prediction of tissue's mechanical response is crucial for clinical diagnosis and treatments. Thus, a physically motivated and mathematically simplified model is required for the accurate prediction of tissues' mechanical and structural responses. This study explored the 'Exp-Ln' hyperelastic model (Khajehsaeid et al., 2013) to capture soft tissues' mechanical and histological behaviour. In this work, uniaxial tensile test data for the belly and back pig skin were extracted from the experiments performed in our laboratory, whereas uniaxial test data for other soft tissues (human skin, tendon, ligament, and aorta) were extracted from the literature. The 'Exp-Ln; and other hyperelastic models (e.g. Money Rivlin, Ogden, Yeoh, and Gent models) were fitted with these experimental data, and obtained results were compared between the models. These results show that the 'Exp-Ln' model could capture the mechanical behaviour of soft tissues more accurately than other hyperelastic models. This model was also found numerically stable for all modes and ranges of deformation. This study also investigated the link between 'Exp-Ln' material parameters and tissue's histological parameters. The histological parameters such as collagen content, fibre free length, crosslink density, and collagen arrangement were measured using staining and ATR-FTIR techniques. The material parameters were found statistically correlated with the histological parameters. Further, 'Exp-Ln' model was implemented in ABAQUS through the VUMAT subroutine, where the mechanical behaviour of various soft tissues was simulated for different modes of deformation. The finite element analysis results obtained using the 'Exp-Ln' model agreed with the experiments and were more accurate than other hyperelastic models. Overall, these results demonstrate the capability of 'Exp-Ln' model to predict the mechanical and structural responses of the soft tissues.
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Affiliation(s)
- Krashn Kr Dwivedi
- Department of Biomedical Engineering, Indian Institute of Technology Ropar, India
| | - Piyush Lakhani
- Department of Mechanical Engineering, Indian Institute of Technology Ropar, India
| | - Sachin Kumar
- Department of Mechanical Engineering, Indian Institute of Technology Ropar, India
| | - Navin Kumar
- Department of Biomedical Engineering, Indian Institute of Technology Ropar, India; Department of Mechanical Engineering, Indian Institute of Technology Ropar, India.
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Ross CJ, Laurence DW, Echols AL, Babu AR, Gu T, Duginski GA, Johns CH, Mullins BT, Casey KM, Laurence KA, Zhao YD, Amini R, Fung KM, Mir A, Burkhart HM, Wu Y, Holzapfel GA, Lee CH. Effects of enzyme-based removal of collagen and elastin constituents on the biaxial mechanical responses of porcine atrioventricular heart valve anterior leaflets. Acta Biomater 2021; 135:425-440. [PMID: 34481053 DOI: 10.1016/j.actbio.2021.08.043] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 08/22/2021] [Accepted: 08/26/2021] [Indexed: 12/24/2022]
Abstract
The leaflets of the atrioventricular heart valves (AHVs) regulate the one-directional flow of blood through a coordination of the extracellular matrix components, including the collagen fibers, elastin, and glycosaminoglycans. Dysfunction of the AHVs, such as those caused by unfavorable microstructural remodeling, lead to valvular heart diseases and improper blood flow, which can ultimately cause heart failure. In order to better understand the mechanics and remodeling of the AHV leaflets and how therapeutics can inadvertently cause adverse microstructural changes, a systematic characterization of the role of each constituent in the biomechanical properties is appropriate. Previous studies have quantified the contributions of the individual microstructural components to tissue-level behavior for the semilunar valve cusps, but not for the AHV leaflets. In this study, for the first time, we quantify the relationships between microstructure and mechanics of the AHV leaflet using a three-step experimental procedure: (i) biaxial tension and stress relaxation testing of control (untreated) porcine AHV anterior leaflet specimens; (ii) enzyme treatment to remove a portion of either the collagen or elastin constituent; and (iii) biaxial tensile and stress relaxation testing of the constituent-removed (treated) specimens. We have observed that the removal of ∼100% elastin resulted in a ∼10% decrease in the tissue extensibility with biaxial tension and a ∼10% increase in the overall stress reduction with stress relaxation. In contrast, removal of 46% of the collagen content insignificantly affected tissue extensibility with biaxial tension and significantly increased stress decay (10%) with stress relaxation. These findings provide an insight into the microstructure-mechanics relationship of the AHVs and will be beneficial for future developments and refinements of microstructurally informed constitutive models for the simulation of diseased and surgically intervened AHV function. STATEMENT OF SIGNIFICANCE: This study presents, for the first time, a thorough mechanical characterization of the atrioventricular heart valve leaflets before and after enzymatic removal of elastin and collagen. We found that the biaxial tensile properties of elastin-deficient tissues and collagen-deficient are stiffer. The fact of elastin supporting low-stress valve function and collagen as the main load-bearing component was evident in a decrease in the low-tension modulus for elastin-deficient tissues and in the high-tension modulus for collagen-deficient tissues. Our quantification and experimental technique could be useful in predicting the disease-related changes in heart valve mechanics. The information obtained from this work is valuable for refining the constitutive models that describe the essential microstructure-mechanics relationship.
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Varenicline limits ischemia reperfusion injury following testicular torsion in mice. J Pediatr Urol 2021; 17:631.e1-631.e8. [PMID: 34366251 DOI: 10.1016/j.jpurol.2021.07.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 05/11/2021] [Accepted: 07/07/2021] [Indexed: 12/12/2022]
Abstract
BACKGROUND Torsion of the spermatic cord and the resulting testicular ischemia leads to the production of inflammatory cytokines and cell death due to impaired aerobic metabolism. Following reperfusion of the testis, a robust innate inflammatory response furthers tissue injury due to the production of reactive oxygen species and disruption of normal capillary function. Blunting the innate immune response with antioxidants, anti-inflammatory medications and targeted genetic interventions reduces long term testicular injury in animal models of torsion, however these approaches have limited clinical applicability. Mediated via α7 nACh receptors, the cholinergic anti-inflammatory pathway limits NFKB signaling and prevents renal fibrosis following warm renal ischemia. We identified varenicline as an FDA approved α7 nAChR agonist and hypothesized that varenicline administration would decrease long-term testicular atrophy and fibrosis in a murine model of testicular torsion. METHODS Using an established model, unilateral testicular torsion was induced in mature male CD1 mice by rotating the right testicle 720° for 2 h. In the treatment group, 4 doses of varenicline (1mg/grm) were administered via intraperitoneal injection every 12 h, with the first dose given 1 h after the creation of testicular torsion. The acute inflammatory response was evaluated 48 h following reperfusion of the testis. Long term outcomes were evaluated 30 days following testicular perfusion. RESULTS 48 h following reperfusion, the testis of animals treated with varenicline demonstrated a significant reduction in the inflammatory response as measured by the acute immune cell infiltrate, myeloperoxidase activity, concentration of reduced glutathione and expression of downstream NF-KB targets. 30 days following reperfusion, animals treated with varenicline, demonstrated decreased testicular atrophy (Summary Figure), fibrosis and expression of pro-fibrotic genes. CONCLUSION Activation of a central immunosuppressive cascade with varenicline after the onset of testicular torsion reduces ischemia reperfusion injury and prevents long term testicular atrophy and fibrosis. Further studies are needed to define the optimum dose and varenicline administration regimen. Our results suggest that varenicline offers a novel, FDA approved, adjunct to the current management of testicular torsion.
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Nor Azlan AYH, Katas H, Mohamad Zin N, Fauzi MB. Dual Action Gels Containing DsiRNA Loaded Gold Nanoparticles: Augmenting Diabetic Wound Healing by Promoting Angiogenesis and Inhibiting Infection. Eur J Pharm Biopharm 2021; 169:78-90. [PMID: 34582971 DOI: 10.1016/j.ejpb.2021.09.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 08/08/2021] [Accepted: 09/20/2021] [Indexed: 11/19/2022]
Abstract
Hyperglycemia induces the prostaglandin transporter (PGT) gene overexpression, leading to poor vascularization and wound healing. Dicer substrate small interfering RNA (DsiRNA) and gold nanoparticles (AuNPs) co-loaded into PF127 gel was developed to overcome the disturbance and infections. The AuNPs were biosynthesized using cold and hot water extracts of Lignosus rhinocerotis (abbreviated CLRE and HLRE, respectively). The wound healing efficacy of a PF127 gel containing DsiRNA-AuNPs-CLRE and -HLRE (assigned as F2 and F3, respectively) was evaluated in a diabetes-induced Wistar rat model. The F2 (DC) and F3 (DH) treated groups revealed a faster wound closure (92.67 ± 3.4% and 85.1 ± 7.3%, respectively) than the positive control (commercial gel, DTI)(74.9 ± 13.3%). DH and DC groups presented an increased blood vessel density, along with decreased inflammatory cells. In comparison to positive control, higher prostaglandin E2 (PGE2) (495 ±79 and 50 ±121 pg/mL, for DC and DH group, respectively), vascular endothelial growth factor (VEGF) (49 ±15 and 38 ±3 pg/mL, for DC and DH group, respectively) and VEGF-A levels were detected in both groups (DC and DH), indicating the effectiveness of DsiRNA in enhancing PGE2 production and vascularization. On evaluating microbiomes adhered to the wound areas, Gram-positive bacteria Staphylococcus and Corynebacterium, as well as Gram-negative Pseudomonas, Rodentibacter, and Acinetobacter, were found to be sensitive to the gel. Collectively, the gel was confirmed as a promising dressing for diabetic wound therapy, warranting further studies for clinical use.
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Affiliation(s)
- Ahmad Yasser Hamdi Nor Azlan
- Centre for Drug Delivery Technology, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, 50300, Kuala Lumpur, Malaysia; Faculty of Pharmacy and Health Sciences, Universiti Kuala Lumpur Royal College of Medicine Perak, 3, Jalan Greentown, 30450 Ipoh, Perak, Malaysia
| | - Haliza Katas
- Centre for Drug Delivery Technology, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, 50300, Kuala Lumpur, Malaysia.
| | - Noraziah Mohamad Zin
- Center For Diagnostic, Therapeutic and Investigative Studies, Faculty of Helath Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, 50300 Kuala Lumpur, Malaysia
| | - Mh Busra Fauzi
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, 56000, Cheras, Malaysia
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Barsch F, Mamilos A, Babel M, Wagner WL, Winther HB, Schmitt VH, Hierlemann H, Teufel A, Brochhausen C. Semiautomated quantification of the fibrous tissue response to complex three-dimensional filamentous scaffolds using digital image analysis. J Biomed Mater Res A 2021; 110:353-364. [PMID: 34390322 DOI: 10.1002/jbm.a.37293] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 06/24/2021] [Accepted: 07/29/2021] [Indexed: 12/12/2022]
Abstract
Fibrosis represents a relevant response to the implantation of biomaterials, which occurs not only at the tissue-material interface (fibrotic encapsulation) but also within the void fraction of complex three-dimensional (3D) biomaterial constructions (fibrotic ingrowth). Usual evaluation of the biocompatibility mostly depicts fibrosis at the interface of the biomaterial using semiquantitative scores. Here, the relations between encapsulation and infiltrating fibrotic growth are poorly represented. Virtual pathology and digital image analysis provide new strategies to assess fibrosis in a more differentiated way. In this study, we adopted a method previously used to quantify fibrosis in visceral organs to the quantification of fibrosis to 3D biomaterials. In a proof-of-concept study, we transferred the "Collagen Proportionate Area" (CPA) analysis from hepatology to the field of biomaterials. As one task of an experimental animal study, we used CPA analysis to quantify the fibrotic ingrowth into a filamentous scaffold after subcutaneous implantation. We were able to demonstrate that the application of the CPA analysis is well suited as an additional fibrosis evaluation strategy for new biomaterial constructions. The CPA method can contribute to a better understanding of the fibrotic interactions between 3D scaffolds and the host tissue responses.
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Affiliation(s)
- Friedrich Barsch
- Institute for Exercise and Occupational Medicine, Faculty of Medicine, Medical Center, University of Freiburg, Freiburg, Germany.,Institute of Pathology, University Regensburg, Regensburg, Germany
| | - Andreas Mamilos
- Institute of Pathology, University Regensburg, Regensburg, Germany
| | - Maximilian Babel
- Institute of Pathology, University Regensburg, Regensburg, Germany.,Central Biobank Regensburg, University Regensburg and University Hospital Regensburg, Regensburg, Germany
| | - Willi L Wagner
- Department of Diagnostic and Interventional Radiology, University Hospital Heidelberg, Heidelberg, Germany.,Translational Lung Research Centre Heidelberg (TLRC), German Lung Research Centre (DZL), Heidelberg, Germany
| | - Hinrich B Winther
- Institute for Diagnostic and Interventional Radiology, Hannover Medical School, Hannover, Germany
| | - Volker H Schmitt
- Department of Cardiology, Cardiology I, University Medical Center Mainz, Johannes Gutenberg-University of Mainz, Mainz, Germany
| | | | - Andreas Teufel
- Department of Medicine II, University Medical Center Mannheim, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Christoph Brochhausen
- Institute of Pathology, University Regensburg, Regensburg, Germany.,Central Biobank Regensburg, University Regensburg and University Hospital Regensburg, Regensburg, Germany
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Sheir MM, Nasra MMA, Abdallah OY. Chitosan alginate nanoparticles as a platform for the treatment of diabetic and non-diabetic pressure ulcers: Formulation and in vitro/in vivo evaluation. Int J Pharm 2021; 607:120963. [PMID: 34363919 DOI: 10.1016/j.ijpharm.2021.120963] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 07/10/2021] [Accepted: 07/28/2021] [Indexed: 11/30/2022]
Abstract
Chitosan and alginate are natural bioactive polymers with wound healing properties, in addition to chitosan's anti-bacterial properties. In this study, these two polymers were combined in a drug-free nanosystem with positive or negative surface charges, for the treatment of non-diabetic and diabetic pressure ulcers. Chitosan alginate nanoparticles (CA NPs) were prepared by a modified ionic gelation method. Interaction between the polymers and formation of the NPs were confirmed by Fourier-Transform infrared spectroscopy, differential scanning calorimetry and transmission electron microscopy. For in vivo study, selected CA NPs with optimum particle size, polydispersity index, positive and negative zeta potential, were evaluated for their pressure ulcers-healing effect using non-diabetic and diabetic rats. Rate of wound closure, histological examination and histomorphometric assessment were used to evaluate the CA NPs' wound healing potential. Positively and negatively charged CA NPs significantly enhanced wound closure rates, compared to control untreated group. Histological and histomorphometric analysis revealed higher quality and maturation of the formed granulation tissue, less inflammation and higher collagen content with positively charged CA NPs containing higher amount of chitosan. These results suggest that chitosan alginate nanoparticles offer a promising platform for diabetic and non-diabetic wound healing applications.
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Affiliation(s)
- Marwa M Sheir
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt.
| | - Maha M A Nasra
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
| | - Ossama Y Abdallah
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
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Bayrak BB, Tunali S, Bal-Demirci T, Ulkuseven B, Yanardag R. Glycoprotein levels and oxidative lung injury in experimental diabetes: effect of oxovanadium(IV) complex based on thiosemicarbazone. Toxicol Mech Methods 2021; 31:581-588. [PMID: 34240667 DOI: 10.1080/15376516.2021.1941462] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Diabetes mellitus (DM) is chronic and metabolic disorder, which is mainly attributed by hyperglycemia. Vanadium salts and their oxo-complexes have been shown to possess insulin-mimetic and anti-diabetic activities in animal models and diabetic patients. The main goal of this study was to investigate the protective effect of oxovanadium(IV) complex based on thiosemicarbazone (VOL) [L: (N(1)-2,4-dihydroxybenzylidene-N-(4)-2-hydroxybenzylidene-S-methyl-isothiosemicarbazidato-oxovanadium(IV)] on glycoprotein components levels and oxidative lung injury of streptozotocin (STZ)-induced diabetic rats. Male Swiss albino rats were separated into four groups. Group I (n = 5): Control (normal) animals, Group II (n = 5): Control animals administered with VOL, Group III (n = 6): STZ-induced diabetic animals, and Group IV (n = 5): STZ-induced diabetic rats treated with VOL. VOL was given to the experimental animals by gavage at a dose of 0.2 mM/kg body weight every day for 12 days. Diabetes was induced by single intraperitoneal injection of STZ (65 mg/kg body weight). On the 12th day, lung tissue samples were taken. Glycoprotein components, advanced oxidation protein products, protein carbonyl, hydroxyproline levels, and prolidase, arginase, xanthine oxidase, catalase, superoxide dismutase, glutathione peroxidase, glutathione reductase, glutathione-S-transferase and adenosine deaminase activities significantly increased whereas aryl esterase, paraoxonase-1, carbonic anhydrase, Na+/K+-ATPase activities remarkably decreased in lung tissue of diabetic rats. Treatment with VOL reversed these effects showing a beneficial effect. The present study shows that VOL has a protective effect against diabetes-induced lung damage as well as on abnormal glycoprotein component levels.
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Affiliation(s)
- Bertan Boran Bayrak
- Department of Chemistry, Division of Biochemistry, Faculty of Engineering, Istanbul University-Cerrahpaşa, Istanbul, Turkey
| | - Sevim Tunali
- Department of Chemistry, Division of Biochemistry, Faculty of Engineering, Istanbul University-Cerrahpaşa, Istanbul, Turkey
| | - Tulay Bal-Demirci
- Department of Chemistry, Division of Inorganic Chemistry, Faculty of Engineering, Istanbul University-Cerrahpaşa, Istanbul, Turkey
| | - Bahri Ulkuseven
- Department of Chemistry, Division of Inorganic Chemistry, Faculty of Engineering, Istanbul University-Cerrahpaşa, Istanbul, Turkey
| | - Refiye Yanardag
- Department of Chemistry, Division of Biochemistry, Faculty of Engineering, Istanbul University-Cerrahpaşa, Istanbul, Turkey
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Formulation and characterization of a novel cutaneous wound healing ointment by silver nanoparticles containing Citrus lemon leaf: A chemobiological study. ARAB J CHEM 2021. [DOI: 10.1016/j.arabjc.2021.103246] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
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Are the collagen types and density in the wound healed after midline and transverse laparotomy different? An experimental study in mice. JOURNAL OF SURGERY AND MEDICINE 2021. [DOI: 10.28982/josam.840890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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37
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Bennington J, Lankford S, Magalhaes RS, Shankle D, Fanning J, Kartini C, Suparto I, Kusumawardhani W, Putra MA, Mariya S, Badlani G, Williams JK. Chemokine Therapy in Cats With Experimental Renal Fibrosis and in a Kidney Disease Pilot Study. Front Vet Sci 2021; 8:646087. [PMID: 33748219 PMCID: PMC7969654 DOI: 10.3389/fvets.2021.646087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2020] [Accepted: 02/12/2021] [Indexed: 11/13/2022] Open
Abstract
Background: Chronic tubulointerstitial fibrosis is a common final pathway leading to end stage kidney disease in cats and has no effective treatment. The use of cell-based molecules to treat kidney fibrosis may be a promising approach. The objectives were to test the effects of intra-renal chemokine CXCL12 injection in a pre-clinical cat model of unilateral ischemia/reperfusion (I/R)-induced kidney fibrosis and then, within a clinical pilot study, test the safety/feasibility of CXCL12 injection in cats that might have early chronic kidney disease (CKD). Methods: Pre-clinical: Thirty cats received intra-renal injection of 100, 200, or 400 ng of recombinant human CXCL12, or sterile saline, into the I/R kidney 70 days post-injury, or were non-injured, non-injected controls (n = 6/group). Kidney collagen content was quantified 4 months post-treatment using Masson's Trichrome and Picrosirius Red (PSR) stained tissues. In a separate study (n = 2) exploring short-term effects of CXCL12, 200 ng CXCL12 was injected into I/R kidneys and then harvested either 30 min (n = 1) or 1 month (n = 1) post-injection. Kidney concentrations of CXCL12, matrix metalloproteinase 1 (MMP-1), and lysyl oxidase-like enzyme 2 (LOXL-2) were quantified via ELISA. Clinical Pilot: 14 client-owned cats with potential early kidney disease received a single-treatment, bilateral intra-renal injection of 200 ng CXCL12 (n = 7), or received no injection (n = 7). Blood/urine samples were collected monthly for 9 months to assess renal function and CKD staging. Results: Pre-clinical: I/R increased the affected kidney collagen content, which both mid and high doses of CXCL12 restored to normal (ps < 0.05 vs. untreated). I/R increased collagen fiber width, which both mid and high doses of CXCL12 restored to normal (p < 0.001 vs. untreated). Early changes in kidney MMP-1, associated with collagen breakdown, and subsequent decreases in LOXL-2, associated with collagen cross-linking, in response to CXCL12 treatment may contribute to these findings. Clinical Pilot: Bilateral intra-renal injection of CXCL12 using ultrasound guidance in cats with CKD was feasible and safe in a general practice clinical setting with no obvious side effects noted during the 9-month follow-up period. Conclusions: Intra-renal injection of CXCL12 may prove to be an effective treatment for kidney fibrosis in cats with CKD. Additional mechanistic and clinical evaluations are needed.
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Affiliation(s)
- Julie Bennington
- Wake Forest Institute for Regenerative Medicine, Winston-Salem, NC, United States
| | - Shannon Lankford
- Wake Forest Institute for Regenerative Medicine, Winston-Salem, NC, United States
| | - Renata S. Magalhaes
- Wake Forest Institute for Regenerative Medicine, Winston-Salem, NC, United States
| | - Douglas Shankle
- Wake Forest Institute for Regenerative Medicine, Winston-Salem, NC, United States
| | - Jason Fanning
- Department of Health and Exercise Science, Wake Forest University, Winston-Salem, NC, United States
| | - Cucu Kartini
- Praktek Dokter Hewan Bersama Joint Veterinary Practice, Sunter, Indonesia
| | - Irma Suparto
- Primate Research Center, Institut Pertanian Bogor, Bogor Agricultural University, Bogor, Indonesia
| | | | - M. ArRaniri Putra
- Praktek Dokter Hewan Bersama Joint Veterinary Practice, Sunter, Indonesia
| | - Silmi Mariya
- Primate Research Center, Institut Pertanian Bogor, Bogor Agricultural University, Bogor, Indonesia
| | - Gopal Badlani
- Department of Urology, Wake Forest Baptist Health, Winston-Salem, NC, United States
| | - J. Koudy Williams
- Wake Forest Institute for Regenerative Medicine, Winston-Salem, NC, United States
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Setiawati A, Jang D, Cho D, Cho S, Jeong H, Park S, Gwak J, Ryu SR, Jung WH, Ju B, Jung K, Kwon O, Shin K. An Accelerated Wound-Healing Surgical Suture Engineered with an Extracellular Matrix. Adv Healthc Mater 2021; 10:e2001686. [PMID: 33458955 DOI: 10.1002/adhm.202001686] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 01/02/2021] [Indexed: 12/21/2022]
Abstract
A suture is a ubiquitous medical device to hold wounded tissues together and support the healing process after surgery. Surgical sutures, having incomplete biocompatibility, often cause unwanted infections or serious secondary trauma to soft or fragile tissue. In this research, UV/ozone (UVO) irradiation or polystyrene sulfonate acid (PSS) dip-coating is used to achieve a fibronectin (FN)-coated absorbable suture system, in which the negatively charged moieties produced on the suture cause fibronectin to change from a soluble plasma form into a fibrous form, mimicking the actions of cellular fibronectin upon binding. The fibrous fibronectin coated on the suture can be exploited as an engineered interface to improve cellular migration and adhesion in the region around the wounded tissue while preventing the binding of infectious bacteria, thereby facilitating wound healing. Furthermore, the FN-coated suture is found to be associated with a lower friction between the suture and the wounded tissue, thus minimizing the occurrence of secondary wounds during surgery. It is believed that this surface modification can be universally applied to most kinds of sutures currently in use, implying that it may be a novel way to develop a highly effective and safer suture system for clinical applications.
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Affiliation(s)
- Agustina Setiawati
- Department of Chemistry and Institute of Biological Interfaces Sogang University 35‐Baekbeom‐ro, Mapo‐gu Seoul 04107 Republic of Korea
- Department of Life Science Sogang University 35‐Baekbeom‐ro, Mapo‐gu Seoul 04107 Republic of Korea
- Faculty of Pharmacy Sanata Dharma University Paingan, Maguwoharjo, Depok, Sleman Yogyakarta 55284 Indonesia
| | - Dongyoon Jang
- Department of Chemistry and Institute of Biological Interfaces Sogang University 35‐Baekbeom‐ro, Mapo‐gu Seoul 04107 Republic of Korea
| | - Daeyon Cho
- Department of Chemistry and Institute of Biological Interfaces Sogang University 35‐Baekbeom‐ro, Mapo‐gu Seoul 04107 Republic of Korea
| | - Shingyu Cho
- Department of Life Science Sogang University 35‐Baekbeom‐ro, Mapo‐gu Seoul 04107 Republic of Korea
| | - Hayan Jeong
- Department of Life Science Sogang University 35‐Baekbeom‐ro, Mapo‐gu Seoul 04107 Republic of Korea
| | - Sungmin Park
- Department of Systems Biotechnology Chung‐Ang University Anseong 17546 Republic of Korea
| | - Jungsug Gwak
- Department of Life Science Sogang University 35‐Baekbeom‐ro, Mapo‐gu Seoul 04107 Republic of Korea
| | - Soo Ryeon Ryu
- Department of Chemistry and Institute of Biological Interfaces Sogang University 35‐Baekbeom‐ro, Mapo‐gu Seoul 04107 Republic of Korea
| | - Won Hee Jung
- Department of Systems Biotechnology Chung‐Ang University Anseong 17546 Republic of Korea
| | - Bong‐Gun Ju
- Department of Life Science Sogang University 35‐Baekbeom‐ro, Mapo‐gu Seoul 04107 Republic of Korea
| | - Kwang‐Hwan Jung
- Department of Life Science Sogang University 35‐Baekbeom‐ro, Mapo‐gu Seoul 04107 Republic of Korea
| | - Oh‐Sun Kwon
- Department of Chemistry and Institute of Biological Interfaces Sogang University 35‐Baekbeom‐ro, Mapo‐gu Seoul 04107 Republic of Korea
| | - Kwanwoo Shin
- Department of Chemistry and Institute of Biological Interfaces Sogang University 35‐Baekbeom‐ro, Mapo‐gu Seoul 04107 Republic of Korea
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Carvalho-Júnior JDC, Zanata F, Aloise AC, Ferreira LM. Acellular dermal matrix in skin wound healing in rabbits - histological and histomorphometric analyses. Clinics (Sao Paulo) 2021; 76:e2066. [PMID: 33681941 PMCID: PMC7920408 DOI: 10.6061/clinics/2021/e2066] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Accepted: 12/29/2020] [Indexed: 01/23/2023] Open
Abstract
OBJECTIVES To analyze the histology and histomorphometry of healing associated with acellular dermal matrix in skin wounds in rabbits. METHODS Twelve male rabbits were divided into two groups: the control group (CG) and the matrix group (MG). Three skin wounds with a total area of 20 × 20 mm were created on the dorsal region of each animal. Photographic records of the lesions taken over a 21-day period and use of the ImageJ program allowed calculation of the wound contraction rate. The lesions were biopsied on days 3, 14 and 21 for histomorphometric analysis to define the thicknesses of the dermis and epidermis (hematoxylin-eosin) and calculate the densities of type I and type III collagen (picrosirius). RESULTS No significant difference in the healing rate was found between the groups (p>0.05). The MG presented greater epidermal thickness on day 3 (p<0.05) and on days 14 and 21 (p<0.001). The MG presented greater dermal thickness throughout the study period (p<0.05). The type I collagen density was higher in the MG throughout the study period (p<0.05), and the type III collagen density was higher in the MG on days 3 and 14 (p<0.05) and on day 21 (p<0.001). CONCLUSION The use of acellular dermal matrix increased the thickness of the dermal and epidermal layers and the amount of type I and III collagen during skin wound healing and did not alter the rate of wound contraction.
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Affiliation(s)
| | - Fabiana Zanata
- Divisao de Cirurgia Plastica e Reconstrutiva, Universidade Federal de Sao Paulo, Sao Paulo, SP, BR
| | - Antônio Carlos Aloise
- Divisao de Cirurgia Plastica e Reconstrutiva, Universidade Federal de Sao Paulo, Sao Paulo, SP, BR
| | - Lydia Masako Ferreira
- Divisao de Cirurgia Plastica e Reconstrutiva, Universidade Federal de Sao Paulo, Sao Paulo, SP, BR
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Gad SB, Hafez MH, El-Sayed YS. Platelet-rich plasma and/or sildenafil topical applications accelerate and better repair wound healing in rats through regulation of proinflammatory cytokines and collagen/TGF-β1 pathway. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:40757-40768. [PMID: 32671702 DOI: 10.1007/s11356-020-10042-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Accepted: 07/06/2020] [Indexed: 06/11/2023]
Abstract
Platelet-rich plasma (PRP) composites of various cytokines and growth factors which have the potential to activate and speed the process of wound repair. Sildenafil also is a potent stimulator of angiogenesis which favors its potential effects on wound healing in several models. Existing work planned to examine the effectiveness of topical application of PRP and/or sildenafil citrate hydrogel (SCH) in a non-splinted excision skin wound model. Adult male rats were allocated into control, PRP, SCH, and PRP/SCH groups. On the 7th and 14th days, blood and tissue samples were collected for hematobiochemical, histopathological, and immunohistochemistry analyses. PRP and/or SCH topical treatments caused an enhancement of wound healing parameters, including a rapid switch from inflammatory phase to connective tissue stage evident by less systemic hematological changes and decreased values of proinflammatory cytokines (IL-6, TNF-α, and IL-1β) and C-reactive protein (CRP) on the 7th or 14th days post-wounding. Also, tissue hydroxyproline, collagen, nitrite, and total protein contents were higher in therapeutically handled wounded rats. Histologically, PRP- and/or SCH-treated wounded rats exhibited less necrosis, inflammation, and fibrin with a higher level of granulation tissue formation on the 7th day post-wounding and abundant collagen remodeling, epithelization, and vascularization on the 14th day relative to control. Interestingly, combined PRP and SCH treatment was more efficient in wound healing scoring with less inflammation, more collagen remodeling, and more epithelization. Our findings confirm the effectiveness of PRP and/or SCH as a topical wound healing treatment, with better skin wound healing with their combination.
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Affiliation(s)
- Shereen B Gad
- Physiology Department, Faculty of Veterinary Medicine, Alexandria University, Alexandria, Egypt
| | - Mona H Hafez
- Physiology Department, Faculty of Veterinary Medicine, Alexandria University, Alexandria, Egypt
| | - Yasser S El-Sayed
- Forensic Medicine and Toxicology Department, Faculty of Veterinary Medicine, Damanhour University, Damanhour, 22511, Egypt.
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Comparison of Dietary Oils with Different Polyunsaturated Fatty Acid n-3 and n-6 Content in the Rat Model of Cutaneous Wound Healing. Int J Mol Sci 2020; 21:ijms21217911. [PMID: 33114430 PMCID: PMC7672592 DOI: 10.3390/ijms21217911] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Revised: 10/19/2020] [Accepted: 10/21/2020] [Indexed: 11/16/2022] Open
Abstract
Dietary supplementation with polyunsaturated fatty acids (PUFA) n-3 can affect cutaneous wound healing; however, recent findings demonstrate the variable extent of their influence on the quality of healing. Here, we compare the effect of several dietary oils, containing different levels of PUFA n-3 and PUFA n-6, on wound healing in the rat model. Rats were fed the feed mixture with 8% palm oil (P), safflower oil (S), fish oil (F) or Schizochytrium microalga extract (Sch) and compared to the animals fed by control feed mixture (C). Dorsal full-thickness cutaneous excisions were performed after 52 days of feeding and skin was left to heal for an additional 12 days. Histopathological analysis of skin wounds was performed, including immune cells immunolabeling and the determination of hydroxyproline amount as well as gene expression analyses of molecules contributing to different steps of the healing. Matrix-assisted-laser-desorption-ionization mass-spectrometry-imaging (MALDI-MSI) was used to determine the amount of collagen α-1(III) chain fragment in healing samples. Treatment by Schizochytrium extract resulted in decrease in the total wound area, in contrast to the safflower oil group where the size of the wound was larger when comparing to control animals. Diet with Schizochytrium extract and safflower oils displayed a tendency to increase the number of new vessels. The number of MPO-positive cells was diminished following any of oil treatment in comparison to the control, but their highest amount was found in animals with a fish oil diet. On the other hand, the number of CD68-positive macrophages was increased, with the most significant enhancement in the fish oil and safflower oil group. Hydroxyproline concentration was the highest in the safflower oil group but it was also enhanced in all other analyzed treatments in comparison to the control. MALDI-MSI signal intensity of a collagen III fragment decreased in the sequence C > S > Sch > P > F treatment. In conclusion, we observed differences in tissue response during healing between dietary oils, with the activation of inflammation observed following the treatment with oil containing high eicosapentaenoic acid (EPA) level (fish oil) and enhanced healing features were induced by the diet with high content of docosahexaenoic acid (DHA, Schizochytrium extract).
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Bielajew BJ, Hu JC, Athanasiou KA. Collagen: quantification, biomechanics, and role of minor subtypes in cartilage. NATURE REVIEWS. MATERIALS 2020; 5:730-747. [PMID: 33996147 PMCID: PMC8114887 DOI: 10.1038/s41578-020-0213-1] [Citation(s) in RCA: 111] [Impact Index Per Article: 27.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 05/28/2020] [Indexed: 05/02/2023]
Abstract
Collagen is a ubiquitous biomaterial in vertebrate animals. Although each of its 28 subtypes contributes to the functions of many different tissues in the body, most studies on collagen or collagenous tissues have focussed on only one or two subtypes. With recent developments in analytical chemistry, especially mass spectrometry, significant advances have been made toward quantifying the different collagen subtypes in various tissues; however, high-throughput and low-cost methods for collagen subtype quantification do not yet exist. In this Review, we introduce the roles of collagen subtypes and crosslinks, and describe modern assays that enable a deep understanding of tissue physiology and disease states. Using cartilage as a model tissue, we describe the roles of major and minor collagen subtypes in detail; discuss known and unknown structure-function relationships; and show how tissue engineers may harness the functional characteristics of collagen to engineer robust neotissues.
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Affiliation(s)
- Benjamin J. Bielajew
- Department of Biomedical Engineering, University of California, Irvine, Irvine, CA 92617, USA
| | - Jerry C. Hu
- Department of Biomedical Engineering, University of California, Irvine, Irvine, CA 92617, USA
| | - Kyriacos A. Athanasiou
- Department of Biomedical Engineering, University of California, Irvine, Irvine, CA 92617, USA
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43
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Noizet M, Bianchi P, Galliano MF, Caruana A, Brandner JM, Bessou-Touya S, Duplan H. Broad spectrum repairing properties of an extract of Aquaphilus dolomiae on in vitro and ex vivo models of injured skin. J Eur Acad Dermatol Venereol 2020; 34 Suppl 5:37-42. [PMID: 32870551 DOI: 10.1111/jdv.16477] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Accepted: 04/03/2020] [Indexed: 12/18/2022]
Abstract
BACKGROUND A biological concentrate was produced from cultures of an Avène aquatic microflora isolate, namely Aquaphilus dolomiae. Some of the beneficial effects on diseased and damaged skin are thought to be due to the presence of this microorganism. AIMS An extract of A. dolomiae (A. dolomiae extract-G2, ADE-G2) was evaluated for its wound-healing effects using in vitro and ex vivo models of injured skin. METHODS The effect of ADE-G2 on the proliferation of fibroblasts, migration of keratinocytes and re-epithelialization of ex vivo wounded skin explants was measured. Antimicrobial protection by ADE-G2 was measured by analysing the gene expression of a panel of antimicrobial proteins (AMPs) in keratinocytes (RNASE7, S100A7, DEFB4A/B and DEFb103B), as well as the protein encoded by DEFB4A-B (hBD2) in the medium. RESULTS ADE-G2 increased fibroblast proliferation and keratinocyte migration, as well as re-epithelialization of wounded ex vivo skin. ADE-G2 induced the expression of all AMP genes analysed in keratinocytes, as well as stimulated the release in to the medium of hBD2 peptide, encoded by DEFB4A/B. CONCLUSIONS We have shown the broad spectrum of the repairing properties of the A. dolomiae extract, ADE-G2. These results support the use of ADE-G2 as a promising component for use in formulations aimed at repairing skin, limiting wound superinfection and preventing complicated wounds.
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Affiliation(s)
- M Noizet
- Pierre Fabre Dermo-Cosmétique, Toulouse, France
| | - P Bianchi
- Pierre Fabre Dermo-Cosmétique, Toulouse, France
| | | | - A Caruana
- Pierre Fabre Dermo-Cosmétique, Toulouse, France
| | - J M Brandner
- Department of Dermatology and Venerology, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | | | - H Duplan
- Pierre Fabre Dermo-Cosmétique, Toulouse, France
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Pors SE, Ramløse M, Nikiforov D, Lundsgaard K, Cheng J, Andersen CY, Kristensen SG. Initial steps in reconstruction of the human ovary: survival of pre-antral stage follicles in a decellularized human ovarian scaffold. Hum Reprod 2020; 34:1523-1535. [PMID: 31286144 DOI: 10.1093/humrep/dez077] [Citation(s) in RCA: 74] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 04/04/2019] [Accepted: 04/25/2019] [Indexed: 11/13/2022] Open
Abstract
STUDY QUESTION Can a reconstructed ovary using decellularized human ovarian tissue (DCT) support survival of pre-antral stage follicles? SUMMARY ANSWER We have demonstrated an effective protocol for decellularization of human ovarian tissues and successful recellularization with isolated human ovarian cells and pre-antral follicles. WHAT IS KNOWN ALREADY Survivors of leukemia or ovarian cancer run a risk of reintroducing malignancy when cryopreserved ovarian tissue is transplanted to restore fertility. A reconstructed ovary free of malignant cells could provide a safe alternative. Decellularization of ovarian tissue removes all cells from the extracellular matrix (ECM) including possible malignancies and leaves behind a physiological scaffold. The ECM offers the complex milieu that facilitates the necessary interaction between ovarian follicles and their surroundings to ensure their growth and development. Previous studies have shown that decellularized bovine ovarian scaffolds supported murine follicle growth and restoration of ovarian function in ovariectomized mice. STUDY DESIGN, SIZE, DURATION Optimizing a decellularization protocol for human ovarian tissues and testing biofunctionality of the decellularized scaffolds in vitro and in vivo by reseeding with both murine and human pre-antral follicles and ovarian cells. PARTICIPANTS/MATERIALS, SETTING, METHODS Donated human ovarian tissue and isolated pre-antral follicles were obtained from women undergoing ovarian tissue cryopreservation for fertility preservation. Ovarian cortical and medullary tissues were decellularized using 0.1% sodium dodecyl sulfate (SDS) for 3, 6, 18 and 24 hours followed by 24 hours of 1 mg/mL DNase treatment and washing. Decellularization of ovarian tissues and preservation of ECM were characterized by morphological evaluation using Periodic Acid-Schiff (PAS) staining, DNA quantification, histochemical quantification of collagen content and immunofluorescence analysis for collagen IA, laminin, fibronectin and DNA. Human ovarian stromal cells and isolated human pre-antral follicles were reseeded on the DCT and cultured in vitro. Isolated murine (N = 241) and human (N = 20) pre-antral follicles were reseeded on decellularized scaffolds and grafted subcutaneously to immunodeficient mice for 3 weeks. MAIN RESULTS AND THE ROLE OF CHANCE Incubation in 0.1% SDS for 18-24 hours adequately decellularized both human ovarian medullary and cortical tissue by eliminating all cells and leaving the ECM intact. DNA content in DCT was decreased by >90% compared to native tissue samples. Histological examination using PAS staining confirmed that the cortical and medullary tissues were completely decellularized, and no visible nuclear material was found within the decellularized sections. DCT also stained positive for collagen I and collagen quantities in DCT constituted 88-98% of the individual baselines for native samples. Human ovarian stroma cells were able to recellularize the DCT and isolated human pre-antral follicles remained viable in co-culture. Xenotransplantation of DCT reseeded with human or murine pre-antral follicles showed, that the DCT was able to support survival of human follicles and growth of murine follicles, of which 39% grew to antral stages. The follicular recovery rates after three weeks grafting were low but similar for both human (25%) and murine follicles (21%). LARGE SCALE DATA N/A. LIMITATIONS, REASONS FOR CAUTION Further studies are needed to increase recovery and survival of the reseeded follicles. Longer grafting periods should be evaluated to determine the developmental potential of human follicles. Survival of the follicles might be impaired by the lack of stroma cells. WIDER IMPLICATIONS OF THE FINDINGS This is the first time that isolated human follicles have survived in a decellularized human scaffold. Therefore, this proof-of-concept could be a potential new strategy to eliminate the risk of malignant cell re-occurrence in former cancer patients having cryopreserved ovarian tissue transplanted for fertility restoration. STUDY FUNDING/COMPETING INTEREST(S) This study is part of the ReproUnion collaborative study, co-financed by the European Union, Interreg V ÖKS. Furthermore, Project ITN REP-BIOTECH 675526 funded by the European Union, European Joint Doctorate in Biology and Technology of the Reproductive Health, the Research Pools of Rigshospitalet, the Danish Cancer Foundation and Dagmar Marshalls Foundation are thanked for having funded this study. The funders had no role in the study design, data collection and interpretation, or in the decision to submit the work for publication.
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Affiliation(s)
- S E Pors
- Laboratory of Reproductive Biology, The Juliane Marie Centre for Women, Children and Reproduction, University Hospital of Copenhagen, Faculty of Health Science, University of Copenhagen, Blegdamsvej, Copenhagen, Denmark
| | - M Ramløse
- Laboratory of Reproductive Biology, The Juliane Marie Centre for Women, Children and Reproduction, University Hospital of Copenhagen, Faculty of Health Science, University of Copenhagen, Blegdamsvej, Copenhagen, Denmark
| | - D Nikiforov
- Laboratory of Reproductive Biology, The Juliane Marie Centre for Women, Children and Reproduction, University Hospital of Copenhagen, Faculty of Health Science, University of Copenhagen, Blegdamsvej, Copenhagen, Denmark.,University of Teramo, Teramo, Via Renato Balzarini, Italy
| | - K Lundsgaard
- Laboratory of Reproductive Biology, The Juliane Marie Centre for Women, Children and Reproduction, University Hospital of Copenhagen, Faculty of Health Science, University of Copenhagen, Blegdamsvej, Copenhagen, Denmark
| | - J Cheng
- Laboratory of Reproductive Biology, The Juliane Marie Centre for Women, Children and Reproduction, University Hospital of Copenhagen, Faculty of Health Science, University of Copenhagen, Blegdamsvej, Copenhagen, Denmark.,People's Hospital of Guangxi Autonomous Region, 6 Taoyuan Rd, Qingxiu Qu, Nanning City, Guangxi province, China Via Renato Balzarini, Teramo
| | - C Yding Andersen
- Laboratory of Reproductive Biology, The Juliane Marie Centre for Women, Children and Reproduction, University Hospital of Copenhagen, Faculty of Health Science, University of Copenhagen, Blegdamsvej, Copenhagen, Denmark
| | - S G Kristensen
- Laboratory of Reproductive Biology, The Juliane Marie Centre for Women, Children and Reproduction, University Hospital of Copenhagen, Faculty of Health Science, University of Copenhagen, Blegdamsvej, Copenhagen, Denmark
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Hou H, Mahdavi B, Paydarfard S, Zangeneh MM, Zangeneh A, Sadeghian N, Taslimi P, Erduran V, Sen F. Novel green synthesis and antioxidant, cytotoxicity, antimicrobial, antidiabetic, anticholinergics, and wound healing properties of cobalt nanoparticles containing Ziziphora clinopodioides Lam leaves extract. Sci Rep 2020; 10:12195. [PMID: 32699314 PMCID: PMC7376013 DOI: 10.1038/s41598-020-68951-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Accepted: 07/03/2020] [Indexed: 01/10/2023] Open
Abstract
The aim of the experiment was a green synthesis of cobalt nanoparticles from the aqueous extract of Ziziphora clinopodioides Lam (CoNPs) and assessment of their cytotoxicity, antioxidant, antifungal, antibacterial, and cutaneous wound healing properties. The synthesized CoNPs were characterized using different techniques including UV-Vis., FT-IR spectroscopy, X-ray diffraction (XRD), energy dispersive X-ray spectrometry (EDS), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). According to the XRD analysis, 28.19 nm was measured for the crystal size of NPs. TEM and SEM images exhibited a uniform spherical morphology and average diameters of 29.08 nm for the biosynthesized nanoparticles. Agar diffusion tests were done to determine the antibacterial and antifungal characteristics. Minimum inhibitory concentration (MIC), minimum bactericidal concentration (MBC), and minimum fungicidal concentration (MFC) were specified by macro-broth dilution assay. CoNPs indicated higher antibacterial and antifungal effects than many standard antibiotics (p ≤ 0.01). Also, CoNPs prevented the growth of all bacteria at 2-4 mg/mL concentrations and removed them at 2-8 mg/mL concentrations (p ≤ 0.01). In the case of antifungal effects of CoNPs, they inhibited the growth of all fungi at 1-4 mg/mL concentrations and destroyed them at 2-16 mg/mL concentrations (p ≤ 0.01). The synthesized CoNPs had great cell viability dose-dependently and indicated this method was nontoxic. DPPH free radical scavenging test was done to assess the antioxidant potentials, which revealed similar antioxidant potentials for CoNPs and butylated hydroxytoluene. In vivo experiment, after creating the cutaneous wound, the rats were randomly divided into six groups: untreated control, treatment with Eucerin basal ointment, treatment with 3% tetracycline ointment, treatment with 0.2% Co(NO3)2 ointment, treatment with 0.2% Z. clinopodioides ointment, and treatment with 0.2% CoNPs ointment. These groups were treated for 10 days. For histopathological and biochemical analysis of the healing trend, a 3 × 3 cm section was prepared from all dermal thicknesses at day 10. Use of CoNPs ointment in the treatment groups substantially raised (p ≤ 0.01) the wound contracture, hydroxyl proline, hexosamine, hexuronic acid, fibrocyte, and fibrocytes/fibroblast rate and remarkably decreased (p ≤ 0.01) the wound area, total cells, neutrophil, and lymphocyte compared to other groups. In conclusion, CoNPs can be used as a medical supplement owing to their non-cytotoxic, antioxidant, antibacterial, antifungal, and cutaneous wound healing effects. Additionally, the novel nanoparticles (Co(NO3)2 and CoNPs) were good inhibitors of the α-glycosidase, and cholinesterase enzymes.
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Affiliation(s)
- Huifang Hou
- School of Basic Medicine, Xinxiang Medical University, Xinxiang, 453003, China
| | - Behnam Mahdavi
- Department of Chemistry, Faculty of Science, Hakim Sabzevari University, Sabzevar, Iran.
| | - Sogand Paydarfard
- Department of Chemistry, Faculty of Science, Hakim Sabzevari University, Sabzevar, Iran
| | - Mohammad Mahdi Zangeneh
- Biotechnology and Medicinal Plants Research Center, Ilam University of Medical Sciences, Ilam, Iran. .,Department of Clinical Sciences, Faculty of Veterinary Medicine, Razi University, Kermanshah, Iran.
| | - Akram Zangeneh
- Biotechnology and Medicinal Plants Research Center, Ilam University of Medical Sciences, Ilam, Iran.,Department of Clinical Sciences, Faculty of Veterinary Medicine, Razi University, Kermanshah, Iran
| | - Nastaran Sadeghian
- Department of Chemistry, Faculty of Sciences, Ataturk University, 25240, Erzurum, Turkey
| | - Parham Taslimi
- Department of Biotechnology, Faculty of Science, Bartin University, 74100, Bartin, Turkey
| | - Vildan Erduran
- Sen Research Group, Biochemistry Department, Faculty of Arts and Science, Dumlupinar University, Evliya Celebi Campus, 43100, Kutahya, Turkey
| | - Fatih Sen
- Sen Research Group, Biochemistry Department, Faculty of Arts and Science, Dumlupinar University, Evliya Celebi Campus, 43100, Kutahya, Turkey.
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Hemmati S, Ahmeda A, Salehabadi Y, Zangeneh A, Zangeneh MM. Synthesis, characterization, and evaluation of cytotoxicity, antioxidant, antifungal, antibacterial, and cutaneous wound healing effects of copper nanoparticles using the aqueous extract of Strawberry fruit and l-Ascorbic acid. Polyhedron 2020. [DOI: 10.1016/j.poly.2020.114425] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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Prawira AY, Hosaka YZ, Novelina S, Farida WR, Darusman HS, Agungpriyono S. Morphological evaluation of polysaccharide content and collagen composition during cutaneous wound healing in the Sunda porcupine (Hystrix javanica). J Vet Med Sci 2020; 82:506-515. [PMID: 32213731 PMCID: PMC7273595 DOI: 10.1292/jvms.19-0603] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Wound healing in the Sunda porcupine is believed to occur quickly, although the wound is large and severe. Wound enclosure involves many processes to restore the lost or damaged skin
structure where conjugated polysaccharide-protein and collagen, as the main components deposited in wound tissue to restore it. The aim of this study was to evaluate alteration of
polysaccharide contents and collagen in untreated full-thickness wound healing in the thoracodorsal and lumbosacral regions in the Sunda porcupines. Histological analysis was performed by
periodic acid Schiff, alcian blue pH 2.5, picrosirius red staining method and Low Vacuum Scanning Electron Microscope (LV-SEM) imaging to obtain the fundamental data of healing process.
Wound healing began with re-epithelization followed by progressive wound contraction with 4 overlapping stages in about 30–50 days until the wound closed (21–30 days in thoracodorsal and
30–50 days in lumbosacral). Neutral polysaccharide was more widely distributed compared to the acid polysaccharide in almost all stages of wound healing. The ratio of collagen I to III
appeared to be higher in the thoracodorsal region than the lumbosacral region during healing process. LV-SEM imaging showed changes in connective tissue structure in the wound border and
granulation tissue which appeared abundant and mixed of thin and thick fiber. In conclusion, cutaneous full thickness wound healing in the Sunda porcupine occurred faster in the
thoracodorsal region, which might be correlated to the role of neutral polysaccharide and a high ratio of collagen I to III.
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Affiliation(s)
- Andhika Yudha Prawira
- Department of Anatomy Physiology and Pharmacology, Faculty of Veterinary Medicine, IPB University, Bogor 16680, Indonesia
| | - Yoshinao Z Hosaka
- Laboratory of Veterinary Anatomy, Department of Veterinary Medicine, Faculty of Agriculture, Tottori University, Tottori 680-8550, Japan
| | - Savitri Novelina
- Department of Anatomy Physiology and Pharmacology, Faculty of Veterinary Medicine, IPB University, Bogor 16680, Indonesia
| | - Wartika Rosa Farida
- Zoology Division, Research Center for Biology, Indonesian Institute of Sciences, Cibinong 16911, Indonesia
| | - Huda Shalahudin Darusman
- Department of Anatomy Physiology and Pharmacology, Faculty of Veterinary Medicine, IPB University, Bogor 16680, Indonesia.,Primate Research Center, IPB University, Bogor 16680, Indonesia
| | - Srihadi Agungpriyono
- Department of Anatomy Physiology and Pharmacology, Faculty of Veterinary Medicine, IPB University, Bogor 16680, Indonesia
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Zhao H, Su H, Ahmeda A, Sun Y, Li Z, Zangeneh MM, Nowrozi M, Zangeneh A, Moradi R. Biosynthesis of copper nanoparticles using
Allium eriophyllum
Boiss leaf aqueous extract; characterization and analysis of their antimicrobial and cutaneous wound‐healing potentials. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5587] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Hongwei Zhao
- Burn DepartmentHarbin Fifth Hospital Harbin 150040 China
| | - Haitao Su
- Burn DepartmentHarbin Fifth Hospital Harbin 150040 China
| | - Ahmad Ahmeda
- College of Medicine, QU HealthQatar University Doha Qatar
| | - Yanqiu Sun
- Burn DepartmentHarbin Fifth Hospital Harbin 150040 China
| | - Zongyu Li
- Burn DepartmentHarbin Fifth Hospital Harbin 150040 China
| | - Mohammad Mahdi Zangeneh
- Department of Clinical Sciences, Faculty of Veterinary MedicineRazi University Kermanshah Iran
- Biotechnology and Medicinal Plants Research CenterIlam University of Medical Sciences Ilam Iran
| | - Masoumeh Nowrozi
- Department of Clinical Sciences, Faculty of Veterinary MedicineRazi University Kermanshah Iran
| | - Akram Zangeneh
- Department of Clinical Sciences, Faculty of Veterinary MedicineRazi University Kermanshah Iran
- Biotechnology and Medicinal Plants Research CenterIlam University of Medical Sciences Ilam Iran
| | - Rohallah Moradi
- Biotechnology and Medicinal Plants Research CenterIlam University of Medical Sciences Ilam Iran
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49
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Han S, Ahmeda A, Jalalvand AR, Lu W, Zangeneh MM, Zangeneh A. Application of silver nanoparticles containing
Gundelia tournefortii
L. leaf aqueous extract in the treatment of microbial diseases and cutaneous wound healing. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Shasha Han
- Department of DermatologyAffiliated Hospital of Qingdao University Qingdao 266003 China
| | - Ahmad Ahmeda
- College of Medicine, QU HealthQatar University Doha Qatar
| | - Ali R. Jalalvand
- Research Center of Oils and FatsKermanshah University of Medical Sciences Kermanshah Iran
| | - Wenjing Lu
- Department of DermatologyQilu Hospital of Shandong University (Qingdao) 758 Hefei Road Qingdao 266035 China
| | - Mohammad Mahdi Zangeneh
- Department of Clinical Sciences, Faculty of Veterinary MedicineRazi University Kermanshah Iran
- Biotechnology and Medicinal Plants Research CenterIlam University of Medical Sciences Ilam Iran
| | - Akram Zangeneh
- Department of Clinical Sciences, Faculty of Veterinary MedicineRazi University Kermanshah Iran
- Biotechnology and Medicinal Plants Research CenterIlam University of Medical Sciences Ilam Iran
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50
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Basha SI, Ghosh S, Vinothkumar K, Ramesh B, Kumari PHP, Mohan KVM, Sukumar E. Fumaric acid incorporated Ag/agar-agar hybrid hydrogel: A multifunctional avenue to tackle wound healing. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 111:110743. [PMID: 32279739 DOI: 10.1016/j.msec.2020.110743] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2019] [Revised: 02/11/2020] [Accepted: 02/12/2020] [Indexed: 12/30/2022]
Abstract
Wound and its treatment is one of the major health concerns throughout the globe. Various extrinsic and intrinsic factors can influence the dynamics of healing mechanism. One such extrinsic factor is moist environment in wound healing. The advantages of optimum hydration in wound healing are enhanced autolytic debridement, angiogenesis and accelerated cell proliferation and collagen formation. But hydrated wounds often end up with patient's uncomfortability, associated infection, and tissue lipid peroxidation. Healing process prefers antimicrobial, anti-inflammatory and optimum moist microenvironment. Here, we have synthesized fumaric acid incorporated agar-silver hydrogel (AA-Ag-FA); characterized by UV-Visible spectroscopy, FTIR spectroscopy and TEM. The surface morphology is evaluated through SEM. The size of the silver nanoparticles (Ag NPs) was found to be 10-15 nm. The hydrogel shows potential antibacterial effect against Escherichia coli, Staphylococcus aureus and Pseudomonas aeruginosa which are predominantly responsible for wound infection. The gel shows reasonable antioxidant property evaluated through 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay. Topical application of the gel on the wound site heals the wound at much faster rate even compared to standard (Mega heal, Composition: Colloidal silver 32 ppm hydrogel) gel. Histological analysis reveals better tissue proliferation (i.e. epithelialization), more granulation tissue formation, neovascularisation, fibroblast and mature collagen bundles. The lipid peroxidation of wound tissue estimated through malondialdehyde (MDA) assay was found to be reasonably less when treated with AA-Ag-FA hydrogel compared to standard (Mega heal). Cytotoxicity of the samples tested through MTT assay and live-dead cell staining shows its nontoxic biocompatibility nature. In our hydrogel scaffold, the bio-degradable agar-agar provides the moist environment; the Ag NPs inside the gel acts as bactericidal agent and fumaric acid facilities the antioxidant and angiogenesis path implicitly.
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Affiliation(s)
- Syed Ilias Basha
- GITAM Institute of Medical Sciences and Research (GIMSR), Department of Pharmacology, Visakhapatnam, Andhra Pradesh 530045, India; Department of Research and Development, Saveetha Institute of Medical and Technical Sciences (Deemed University), Thandalam, Chennai, Tamilnadu 602105, India
| | - Somnath Ghosh
- Indian Institute of Petroleum and Energy (IIPE), Department of Chemistry, Visakhapatnam, Andhra Pradesh 530003, India.
| | - K Vinothkumar
- VPro Biotech, 51-Arumparthapuram Main Road, Puducherry-605 110, India
| | - B Ramesh
- GITAM Institute of Medical Sciences and Research (GIMSR), Department of Pharmacology, Visakhapatnam, Andhra Pradesh 530045, India
| | - P Hema Praksh Kumari
- GITAM Institute of Medical Sciences and Research (GIMSR), Department of Microbiology, Visakhapatnam, Andhra Pradesh 530045, India
| | - K V Murali Mohan
- GITAM Institute of Medical Sciences and Research (GIMSR), Department of Pathology, Visakhapatnam, Andhra Pradesh 530045, India
| | - E Sukumar
- Department of Research and Development, Saveetha Institute of Medical and Technical Sciences (Deemed University), Thandalam, Chennai, Tamilnadu 602105, India.
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