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Kardan T, Mohammadi R, Tukmechi A, Mohammadi V. Curcumin-Polyethylene Glycol Loaded on Chitosan-Gelatin Nanoparticles Enhances Infected Wound Healing. INT J LOW EXTR WOUND 2024:15347346241251734. [PMID: 38755962 DOI: 10.1177/15347346241251734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2024]
Abstract
The aim of the present study was to evaluate effects of curcumin-polyethylene glycol loaded on chitosan-gelatin nanoparticles (C-PEG-CGNPs) on healing of methicillin-resistant Staphylococcus aureus (MRSA)-infected wounds in rat as a model study. Forty male Wistar rats were randomized into 5 groups of 8 animals each. In CNTRL group, no infected/no treated wounds were covered with sterile saline 0.9% solution (0.1 mL). In MRSA group, MRSA-infected wounds were only treated with sterile saline 0.9% solution (0.1 mL). In MRSA/CP group, 0.1 mL curcumin nanoparticles (1 mg/mL) was applied topically to treat MRSA-infected wounds. In MRSA/CG group, 0.1 mL CG (1 mg/mL) was applied topically to treat MRSA-infected wounds. In MRSA/CP-CG group, 0.1 mL CP-CG (1 mg/mL) was applied topically to treat MRSA-infected wounds. Microbiological examination; planimetric, biochemical, histological, morphometric studies, angiogenesis, hydroxyproline levels, and reverse transcription polymerase chain reaction for caspase 3, Bcl-2, and p53 showed significant difference between rats in MRSA/CP-CG group in comparison with other groups (P < .05). Accelerated and improved healing in wounds infected with MRSA were observed in animals treated with C-PEG-CGNPs. Via increasing solubility of curcumin in C-PEG-CGNP, this harmless and easily available composition could be considered to be topically applied in infected wounds.
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Affiliation(s)
- Tara Kardan
- 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
| | - Amir Tukmechi
- Department of Microbiology, 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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Jiang Z, Wu J, Qiu Y, Shen G. Perfusion Analysis Using High-Definition Indocyanine Green Angiography in Burn Comb Model. J Burn Care Res 2024; 45:373-383. [PMID: 37830308 DOI: 10.1093/jbcr/irad156] [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: 07/04/2023] [Indexed: 10/14/2023]
Abstract
Indocyanine green angiography (ICGA) has been widely employed for quantitative evaluation of the rat comb burn model, but the imaging equipment, imaging protocol, and fluorescence data interpretation of ICGA remain unsatisfactory. This study aims to provide better solutions for the application of ICGA in perfusion analysis. The rat comb burn model was established under a series of different comb contact durations, including 10, 20, 25, 30, 35, and 40 s. Indocyanine green angiography was used to analyze wound perfusion. In total, 16 rats were divided into ibuprofen and control groups for the burn model, and their perfusion was compared. A total of 16 identical models were divided into standard- and high-dose indocyanine green (ICG) groups, and ICGA was conducted to investigate the dynamic change in wound fluorescence. Escharectomy was performed under real-time fluorescence mapping and navigation. The results showed that a comb contact duration of 30 s was optimum for the burn model. Indocyanine green angiography could accurately evaluate the histologically determined depth of thermal injury and wound perfusion in the rat comb model. Digital subtraction of residual fluorescence was necessary for multiple comparisons of perfusion. Dynamic changes in fluorescence and necrotic tissues were observed more clearly by high-dose (0.5 mg/kg) ICG in angiography. In conclusion, perfusion analysis by ICGA can be used to assess the histologically determined depth of thermal injury and the impact of a specific treatment on wound perfusion. Indocyanine green angiography can help to identify necrotic tissue. The above findings and related imaging protocols lay the foundation for future research.
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Affiliation(s)
- Zhaolong Jiang
- Department of Burn and Plastic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China
- Department of Burn and Plastic Surgery, Affiliated Hospital of Jiangnan University, Wuxi, China
| | - Junqiang Wu
- Department of Breast Surgery, Affiliated Hospital of Jiangnan University, Wuxi, China
| | - Yunjie Qiu
- Department of Medical Statistics, Affiliated Hospital of Jiangnan University, Wuxi, China
| | - Guoliang Shen
- Department of Burn and Plastic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China
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Prabhakaran HS, Hu D, He W, Luo G, Liou YC. Mitochondrial dysfunction and mitophagy: crucial players in burn trauma and wound healing. BURNS & TRAUMA 2023; 11:tkad029. [PMID: 37465279 PMCID: PMC10350398 DOI: 10.1093/burnst/tkad029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 03/10/2023] [Accepted: 04/28/2023] [Indexed: 07/20/2023]
Abstract
Burn injuries are a significant cause of death worldwide, leading to systemic inflammation, multiple organ failure and sepsis. The progression of burn injury is explicitly correlated with mitochondrial homeostasis, which is disrupted by the hyperinflammation induced by burn injury, leading to mitochondrial dysfunction and cell death. Mitophagy plays a crucial role in maintaining cellular homeostasis by selectively removing damaged mitochondria. A growing body of evidence from various disease models suggest that pharmacological interventions targeting mitophagy could be a promising therapeutic strategy. Recent studies have shown that mitophagy plays a crucial role in wound healing and burn injury. Furthermore, chemicals targeting mitophagy have also been shown to improve wound recovery, highlighting the potential for novel therapeutic strategies based on an in-depth exploration of the molecular mechanisms regulating mitophagy and its association with skin wound healing.
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Affiliation(s)
- Harshini Sheeja Prabhakaran
- Department of Biological Sciences, Faculty of Science, National University of Singapore, 14 Science drive 4, 117543 Singapore, Singapore
| | - Dongxue Hu
- Department of Biological Sciences, Faculty of Science, National University of Singapore, 14 Science drive 4, 117543 Singapore, Singapore
| | - Weifeng He
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Gao Tan Yan Zheng Street, Sha Ping Ba District, Chongqing, 400038, People's Republic of China
- Chongqing Key Laboratory for Disease Proteomics, Gao Tan Yan Zheng Street, Sha Ping Ba District, Chongqing, 400038, People's Republic of China
| | - Gaoxing Luo
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Gao Tan Yan Zheng Street, Sha Ping Ba District, Chongqing, 400038, People's Republic of China
- Chongqing Key Laboratory for Disease Proteomics, Gao Tan Yan Zheng Street, Sha Ping Ba District, Chongqing, 400038, People's Republic of China
| | - Yih-Cherng Liou
- Department of Biological Sciences, Faculty of Science, National University of Singapore, 14 Science drive 4, 117543 Singapore, Singapore
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Hayati F, Ghamsari SM, Dehghan MM, Taghipour H. Saving zone of stasis in burn wounds by nanoliposomal Mg-ATP. Wound Repair Regen 2023; 31:28-39. [PMID: 36106340 DOI: 10.1111/wrr.13048] [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: 07/29/2022] [Accepted: 08/25/2022] [Indexed: 01/25/2023]
Abstract
ATP is a crucial molecule for every energy-dependent process in cells. In ischemic tissues, ATP production declines, and it finally results in cell death. One of the most common strategies in burn wound management is saving the zone of ischemia. In the current study, Mg-ATP-containing nanoliposomes were formulated and studied in vitro and in vivo. The particle size of the vesicles was between 50 and 100 nm and the mean zeta potential was -4.05 ± 0.52 mV as evaluated by dynamic light scattering and Zeta sizer instrument, respectively. The encapsulation efficiency of ATP in the nanoliposomes was found to be 9.3%. The morphology and size of nanoliposomes were further studied by transmission electron microscopy. The standard MTT assay revealed no cytotoxicity of the nanoliposomes when tested on the rat fibroblast cells. Forty rats were randomly divided into four groups (N = 10 each). Burn wounds were created by burn comb model on the back of the rats and the zone of stasis in each group was treated every 12 h for 3 days by injecting them with the Mg-ATP-nanoliposomes. Control samples included empty nanoliposomes, unencapsulated Mg-ATP and the Krebs-Henseleit buffer. Laser Doppler flowmetry results revealed that blood perfusion in the zone of ischemia in rats treated with Mg-ATP-nanoliposomes was more than in the other groups (p < 0.05). Histopathology revealed saving zone of stasis by Mg-ATP-nanoliposomes. Findings obtained in this study demonstrated that the formulated Mg-ATP-nanoliposome has the potential to save the stasis zone in burn wounds.
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Affiliation(s)
- Farzad Hayati
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Seyed Mehdi Ghamsari
- Department of Surgery and Radiology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Mohammad Mehdi Dehghan
- Department of Surgery and Radiology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Hamid Taghipour
- Department of Surgery and Radiology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
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Shupp JW, Holmes JH, Moffatt LT, Phelan HA, Sousse L, Romanowski KS, Jeschke M, Kowalske KJ, Badger K, Allely R, Cartotto R, Burmeister DM, Kubasiak JC, Wolf SE, Wallace KF, Gillenwater J, Schneider DM, Hultman CS, Wiechman SA, Bailey JK, Powell HM, Travis TE, Supp DM, Carney BC, Johnson LS, Johnson LS, Chung KK, Chung KK, Kahn SA, Gibson ALF, Christy RJ, Carter JE, Carson JS, Palmieri TL, Kopari NM, Blome-Eberwein SA, Hickerson WL, Parry I, Cancio JM, Suman O, Schulman CI, Lamendella R, Hill DM, Wibbenmeyer LA, Nygaard RM, Wagner AL, Carter ADW, Greenhalgh DG, Lawless MB, Carlson DL, Harrington DT. Proceedings of the 2021 American Burn Association State and Future of Burn Science Meeting. J Burn Care Res 2022; 43:1241-1259. [PMID: 35988021 DOI: 10.1093/jbcr/irac092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Periodically, the American Burn Association (ABA) has convened a State of the Science meeting on various topics representing multiple disciplines within burn care and research. In 2021 at the request of the ABA President, meeting development was guided by the ABA's Burn Science Advisory Panel (BSAP) and a subgroup of meeting chairs. The goal of the meeting was to produce both an evaluation of the current literature and ongoing studies, and to produce a research agenda and/or define subject matter-relevant next steps to advance the field(s). Members of the BSAP defined the topics to be addressed and subsequently solicited for nominations of expert speakers and topic leaders from the ABA's Research Committee. Current background literature for each topic was compiled by the meeting chairs and the library then enhanced by the invited topic and breakout discussion leaders. The meeting was held in New Orleans, LA on November 2nd and 3rd and was formatted to allow for 12 different topics, each with two subtopics, to be addressed. Topic leaders provided a brief overview of each topic to approximately 100 attendees, followed by expert-lead breakout sessions for each topic that allowed for focused discussion among subject matter experts and interested participants. The breakout and topic group leaders worked with the participants to determine research needs and associated next steps including white papers, reviews and in some cases collaborative grant proposals. Here, summaries from each topic area will be presented to highlight the main foci of discussion and associated conclusions.
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Ravanfar K, Amniattalab A, Mohammadi R. Curcumin-Polyethylene Glycol Loaded on Chitosan-Gelatin Nanoparticles Enhances Burn Wound Healing in Rat. J Burn Care Res 2022; 43:1399-1409. [PMID: 35420679 DOI: 10.1093/jbcr/irac048] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The aim of the present study was to evaluate effects of curcumin-polyethylene glycol loaded on chitosan-gelatin nanoparticles (C-PEG-CGNPs) on burn wound healing in rat as a model study. Sixty healthy male White Wistar rats were randomized into four experimental groups of 15 animals each: Control group (Control) was treated with normal saline. Carrier group was treated with CGNPs-based ointment (0.05 mg/ml). Silver sulfadiazine group was treated with silver sulfadiazine 1% ointment. Treatment group was treated with C-PEG-CGNPs (0.05 mg/ml). Wound size was measured on 7, 14, and 21 days after surgery. The expression of p53, Bcl-2, caspase-3 were evaluated using reverse transcription-polymerase chain reaction and immunohistochemical staining. Reduction in wound area indicated that there was significant difference between Treatment group and other groups (P < .05). Quantitative histological and morphometric studies, and mean rank of the qualitative studies demonstrated that there was a significant difference between Treatment group and other groups (P < .05). Observations demonstrated C-PEG-CGNPs significantly shortened the inflammatory phase and accelerated the cellular proliferation. Accordingly, the animals in Treatment group revealed significantly (P < .05) higher fibroblast distribution/one mm2 of wound area and rapid reepithelialization. The mRNA levels of Bcl-2, p53, and caspase-3 were remarkably (P < .05) higher in Treatment group compared to control animals. The immunohistochemical analyses confirmed the reverse transcription-polymerase chain reaction findings. C-PEG-CGNPs offered potential advantages in burn wound healing acceleration and improvement.
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Affiliation(s)
- Kimia Ravanfar
- Department of Pathology, Faculty of Veterinary Medicine, Urmia Branch, Islamic Azad University, Urmia, Iran
| | - Amir Amniattalab
- Department of Pathology, Faculty of Veterinary Medicine, Urmia Branch, Islamic Azad University, Urmia, Iran
| | - Rahim Mohammadi
- Department of Surgery and Diagnostic Imaging, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran
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Palackic A, Jay JW, Duggan RP, Branski LK, Wolf SE, Ansari N, El Ayadi A. Therapeutic Strategies to Reduce Burn Wound Conversion. Medicina (B Aires) 2022; 58:medicina58070922. [PMID: 35888643 PMCID: PMC9315582 DOI: 10.3390/medicina58070922] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 07/02/2022] [Accepted: 07/08/2022] [Indexed: 11/16/2022] Open
Abstract
Burn wound conversion refers to the phenomenon whereby superficial burns that appear to retain the ability to spontaneously heal, convert later into deeper wounds in need of excision. While no current treatment can definitively stop burn wound conversion, attempts to slow tissue damage remain unsatisfactory, justifying the need for new therapeutic interventions. To attenuate burn wound conversion, various studies have targeted at least one of the molecular mechanisms underlying burn wound conversion, including ischemia, inflammation, apoptosis, autophagy, generation of reactive oxygen species, hypothermia, and wound rehydration. However, therapeutic strategies that can target various mechanisms involved in burn wound conversion are still lacking. This review highlights the pathophysiology of burn wound conversion and focuses on recent studies that have turned to the novel use of biologics such as mesenchymal stem cells, biomaterials, and immune regulators to mitigate wound conversion. Future research should investigate mechanistic pathways, side effects, safety, and efficacy of these different treatments before translation into clinical studies.
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Affiliation(s)
- Alen Palackic
- Department of Surgery, University of Texas Medical Branch, Galveston, TX 77555, USA; (A.P.); (J.W.J.); (R.P.D.); (L.K.B.); (S.E.W.)
- Division of Plastic, Aesthetic and Reconstructive Surgery, Department of Surgery, Medical University of Graz, A-8036 Graz, Austria
| | - Jayson W. Jay
- Department of Surgery, University of Texas Medical Branch, Galveston, TX 77555, USA; (A.P.); (J.W.J.); (R.P.D.); (L.K.B.); (S.E.W.)
| | - Robert P. Duggan
- Department of Surgery, University of Texas Medical Branch, Galveston, TX 77555, USA; (A.P.); (J.W.J.); (R.P.D.); (L.K.B.); (S.E.W.)
| | - Ludwik K. Branski
- Department of Surgery, University of Texas Medical Branch, Galveston, TX 77555, USA; (A.P.); (J.W.J.); (R.P.D.); (L.K.B.); (S.E.W.)
| | - Steven E. Wolf
- Department of Surgery, University of Texas Medical Branch, Galveston, TX 77555, USA; (A.P.); (J.W.J.); (R.P.D.); (L.K.B.); (S.E.W.)
| | - Naseem Ansari
- Department of Biochemistry and Molecular Biology, University of Texas Medical Branch, Galveston, TX 77555, USA;
| | - Amina El Ayadi
- Department of Surgery, University of Texas Medical Branch, Galveston, TX 77555, USA; (A.P.); (J.W.J.); (R.P.D.); (L.K.B.); (S.E.W.)
- Correspondence:
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Hajati Ziabari A, Asadi Heris M, Mohammad Doodmani S, Jahandideh A, Koorehpaz K, Mohammadi R. Cinnamon Nanoparticles Loaded on Chitosan- Gelatin Nanoparticles Enhanced Burn Wound Healing in Diabetic Foot Ulcers in Rats. INT J LOW EXTR WOUND 2022:15347346221101245. [PMID: 35658599 DOI: 10.1177/15347346221101245] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The objective of this work was to investigate impact of Cinnamon nanoparticles loaded on chitosan- gelatin nanoparticles on burn wound healing in diabetic foot ulcers in rat. We included sixty male rats into four groups. There were 15 animals in each group as follow: DFU group: We treated the burn wounds with normal saline (0.1 mL). DFU/SSD group: In this group, the wounds were with silver sulfadiazine 1% ointment. DFU/CGNP: In this group, the burn wounds were treated with chitosan-gelatin nanoparticles based ointment (0.05 mg/mL). DFU/CNP-CGNP group: In this group, the wounds were treated with CN-CGNPs (0.05 mg/mL). Wound area reduction measurements, biochemistry, histomorphometrical studies, hydroxyproline levels and reverse transcription polymerase chain reaction for caspase 3, Bcl-2, and p53 showed significant difference between rats in DFU/CNP-CGNP group in comparison with other groups (P < .05). Accelerated repair of the wounds in DFU/CNP-CGNP group showed that local application of Cinnamon nanoparticles loaded on chitosan- gelatin nanoparticles could be taken into consideration in burn wound healing in diabetic foot ulcers.
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Affiliation(s)
- Amirreza Hajati Ziabari
- Department of Clinical Sciences, Faculty of Specialized Veterinary Sciences, Science and Research Branch, 125643Islamic Azad University, Tehran, Iran
| | - Mostafa Asadi Heris
- Department of Clinical Sciences, Faculty of Specialized Veterinary Sciences, Science and Research Branch, 125643Islamic Azad University, Tehran, Iran
| | - Seyed Mohammad Doodmani
- Department of Clinical Sciences, Faculty of Specialized Veterinary Sciences, Science and Research Branch, 125643Islamic Azad University, Tehran, Iran
| | - Alireza Jahandideh
- Department of Clinical Sciences, Faculty of Specialized Veterinary Sciences, Science and Research Branch, 125643Islamic Azad University, Tehran, Iran
| | - Kave Koorehpaz
- Department of Theriogenology, Faculty of Veterinary Medicine, 117045Urmia University, Urmia, Iran
| | - Rahim Mohammadi
- Department of Surgery and Diagnostic Imaging, Faculty of Veterinary Medicine, 117045Urmia University, Urmia, Iran
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