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Mulder PPG, Hooijmans CR, Vlig M, Middelkoop E, Joosten I, Koenen HJPM, Boekema BKHL. Kinetics of Inflammatory Mediators in the Immune Response to Burn Injury: Systematic Review and Meta-Analysis of Animal Studies. J Invest Dermatol 2024; 144:669-696.e10. [PMID: 37806443 DOI: 10.1016/j.jid.2023.09.269] [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: 05/25/2023] [Revised: 08/31/2023] [Accepted: 09/20/2023] [Indexed: 10/10/2023]
Abstract
Burns are often accompanied by a dysfunctional immune response, which can lead to systemic inflammation, shock, and excessive scarring. The objective of this study was to provide insight into inflammatory pathways associated with burn-related complications. Because detailed information on the various inflammatory mediators is scattered over individual studies, we systematically reviewed animal experimental data for all reported inflammatory mediators. Meta-analyses of 352 studies revealed a strong increase in cytokines, chemokines, and growth factors, particularly 19 mediators in blood and 12 in burn tissue. Temporal kinetics showed long-lasting surges of proinflammatory cytokines in blood and burn tissue. Significant time-dependent effects were seen for IL-1β, IL-6, TGF-β1, and CCL2. The response of anti-inflammatory mediators was limited. Burn technique had a profound impact on systemic response levels. Large burn size and scalds further increased systemic, but not local inflammation. Animal characteristics greatly affected inflammation, for example, IL-1β, IL-6, and TNF-α levels were highest in young, male rats. Time-dependent effects and dissimilarities in response demonstrate the importance of appropriate study design. Collectively, this review presents a general overview of the burn-induced immune response exposing inflammatory pathways that could be targeted through immunotherapy for burn patients and provides guidance for experimental set-ups to advance burn research.
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Affiliation(s)
- Patrick P G Mulder
- Preclinical Research, Association of Dutch Burn Centres (ADBC), Beverwijk, The Netherlands; Laboratory of Medical Immunology, Department of Laboratory Medicine, Radboud University Medical Center, Nijmegen, The Netherlands.
| | - Carlijn R Hooijmans
- Meta-Research Team, Department of Anesthesiology, Pain and Palliative Medicine, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Marcel Vlig
- Preclinical Research, Association of Dutch Burn Centres (ADBC), Beverwijk, The Netherlands
| | - Esther Middelkoop
- Preclinical Research, Association of Dutch Burn Centres (ADBC), Beverwijk, The Netherlands; Department of Plastic, Reconstructive and Hand Surgery, Amsterdam UMC location Vrije Universiteit Amsterdam, Amsterdam, The Netherlands; Tissue Function and Regeneration, Amsterdam Movement Sciences, Amsterdam, The Netherlands
| | - Irma Joosten
- Laboratory of Medical Immunology, Department of Laboratory Medicine, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Hans J P M Koenen
- Laboratory of Medical Immunology, Department of Laboratory Medicine, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Bouke K H L Boekema
- Preclinical Research, Association of Dutch Burn Centres (ADBC), Beverwijk, The Netherlands; Department of Plastic, Reconstructive and Hand Surgery, Amsterdam UMC location Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
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Dehkordi SH, Karimi I, Mills P, Shirian S. The healing effect of a mixture of Arnebia euchroma and animal fat on burn wounds in rats in comparison with sulfadiazine. J Wound Care 2024; 33:xiv-xix. [PMID: 38324421 DOI: 10.12968/jowc.2024.33.sup2a.xiv] [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: 02/09/2024]
Abstract
OBJECTIVE Thermal burn is a serious cause of morbidity and mortality that affects millions of people worldwide. The aim of this experimental study was to investigate the efficacy of Arnebia euchroma (AE) to treat burn wounds in a rat model. METHOD A total of 80 male rats (200-250g) were shaved over the back of the neck (2×3cm2) and a second-degree burn wound was induced at this site under general anaesthesia. The rats were then randomly assigned to one of four groups (each n=20) and the burns were treated daily for 14 days as follows: (1) dressed with animal fat; (2) dressed with sulfadiazine; (3) dressed with a mixture of AE and animal fat; (4) no treatment (control). Five rats from each group were sacrificed on days 3, 5, 9 and 14 post-burn and the wounds were evaluated histologically and immunohistochemically for the expression of interleukin (IL)-1 and IL-6. RESULTS There was a significant increase at day 3 and decrease on day 5 samples for the expression of IL-1 in the AE plus fat group and IL-6 in the AE plus fat and sulfadiazine groups, compared to the control and fat treatment groups, respectively. Both AE plus fat and sulfadiazine treatments reduced inflammation and granulation tissue formation by day 5 post-burn, while re-epithelialisation commenced by day 9 post-burn. In addition, burns treated with AE plus fat exhibited keratinised epidermis, associated with regular collagen fibres, compared to moderately dense collagen fibres without vascularisation in the sulfadiazine group. CONCLUSION These findings suggested that AE plus fat was superior to sulfadiazine in enhancing burn wound healing in rats.
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Affiliation(s)
- Saied Habibian Dehkordi
- Department of Pharmacology, School of Veterinary Medicine, Shahrekord University, Shahrekord, Iran
| | - Iraj Karimi
- Department of Pathology, School of Veterinary Medicine, Shahrekord University, Shahrekord, Iran
- Shefa Neuroscience Research Center, Khatam Alanbia Hospital, Tehran, Iran
| | - Paul Mills
- School of Veterinary Science, University of Queensland, Brisbane, Australia
| | - Sadegh Shirian
- Department of Pathology, School of Veterinary Medicine, Shahrekord University, Shahrekord, Iran
- Shiraz Molecular Pathology Research Center, Dr Daneshbod Lab, Shiraz, Iran
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Fungfuang W, Srisuksai K, Santativongchai P, Charoenlappanit S, Phaonakrop N, Roytrakul S, Tulayakul P, Parunyakul K. Targeted proteomic analysis reveals that crocodile oil from Crocodylus siamensis may enhance hepatic energy metabolism in rats. Exp Anim 2023; 72:425-438. [PMID: 37032112 PMCID: PMC10658085 DOI: 10.1538/expanim.23-0009] [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: 01/17/2023] [Accepted: 04/02/2023] [Indexed: 04/11/2023] Open
Abstract
The liver is a key organ governing body energy metabolism. Dietary fats influence energy metabolism and mitochondrial functioning. Crocodile oil (CO) is rich in mono- and polyunsaturated fatty acids that contain natural anti-inflammatory and healing properties. Our study examined how CO affects the expressions of liver proteins involved in energy metabolism in rats. Twenty-one male Sprague Dawley rats were divided into three groups and underwent oral gavage with 3 ml/kg of sterile water (N group), CO (CO group), or palm oil (PO group) for 7 weeks. Body weight, energy intake, liver weight, liver indexes, blood lipid profiles, and liver-energy intermediates were measured. The liver proteome was analyzed using shotgun proteomics, and the functions and network interactions of several candidate proteins were predicted using the STITCH v.5.0 software. Body weights, energy intake, liver contents, and lipid profiles did not differ between the groups. However, hepatic oxaloacetate and malate levels were significantly higher in the CO group than in the PO group. Targeted proteomics reveals that 22 out of 1,790 unique proteins in the CO group were involved in energy-generating pathways, including the tricarboxylic acid cycle and oxidative phosphorylation (OXPHOS), and were correlated with the AMP-activated protein kinase signaling pathway. Cluster analysis of 59 differentially expressed proteins showed that OXPHOS-associated proteins were upregulated in the CO group and that three glycolytic metabolism-related proteins were downregulated in the CO group. CO may enhance hepatic energy metabolism by regulating the expressions of energy expenditure-related proteins.
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Affiliation(s)
- Wirasak Fungfuang
- Kasetsart University Research and Development Institute, Kasetsart University, Ngamwongwan Road, Chatuchak, Bangkok 10900, Thailand
- Department of Zoology, Faculty of Science, Kasetsart University, Ngamwongwan Road, Chatuchak, Bangkok 10900, Thailand
| | - Krittika Srisuksai
- Department of Zoology, Faculty of Science, Kasetsart University, Ngamwongwan Road, Chatuchak, Bangkok 10900, Thailand
| | - Pitchaya Santativongchai
- Bio-Veterinary Science (International Program), Faculty of Veterinary Medicine, Kasetsart University, Ngamwongwan Road, Chatuchak, Bangkok 10900, Thailand
| | - Sawanya Charoenlappanit
- Functional Ingredients and Food Innovation Research Group, National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency, Phahonyothin Road, Khlong Nueang, Khlong Luang, Pathum Thani 12120, Thailand
| | - Narumon Phaonakrop
- Functional Ingredients and Food Innovation Research Group, National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency, Phahonyothin Road, Khlong Nueang, Khlong Luang, Pathum Thani 12120, Thailand
| | - Sittiruk Roytrakul
- Functional Ingredients and Food Innovation Research Group, National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency, Phahonyothin Road, Khlong Nueang, Khlong Luang, Pathum Thani 12120, Thailand
| | - Phitsanu Tulayakul
- Department of Veterinary Public Health, Faculty of Veterinary Medicine, Kasetsart University, Malaiman Road, Kamphaeng Saen, Nakhon Pathom 73140, Thailand
| | - Kongphop Parunyakul
- Department of Zoology, Faculty of Science, Kasetsart University, Ngamwongwan Road, Chatuchak, Bangkok 10900, Thailand
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Parunyakul K, Chuchoiy A, Kooltueon S, Puttagamnerd P, Srisuksai K, Santativongchai P, Pongchairerk U, Tulayakul P, E-kobon T, Fungfuang W. Effect of the oil from the fatty tissues of Crocodylus siamensis on gut microbiome diversity and metabolism in mice. PLoS One 2023; 18:e0289073. [PMID: 37506097 PMCID: PMC10381048 DOI: 10.1371/journal.pone.0289073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 07/10/2023] [Indexed: 07/30/2023] Open
Abstract
Dietary fat can alter host metabolism and gut microbial composition. Crocodile oil (CO) was extracted from the fatty tissues of Crocodylus siamensis. CO, rich in monounsaturated- and polyunsaturated fatty acids, has been reported to reduce inflammation, counter toxification, and improve energy metabolism. The aim of this study was to investigate the effect of CO on gut microbiota (GM) in laboratory mice as well as the accompanying metabolic changes in the animals. Forty-five C57BL/6 male mice were randomly divided into five groups and orally administrated either sterile water (control [C]); 1 or 3% (v/w) CO (CO-low [CO-L] and CO-high [CO-H], respectively); or 1 or 3% (v/w) palm oil (PO-low and PO-high, respectively) for 11 weeks. Body weight gain, food intake, energy intake, blood glucose levels, and blood lipid profiles were determined. Samples from colon tissue were collected and the 16S rRNA genes were pyrosequenced to clarify GM analyses. The results showed that there were no differences in body weight and blood glucose levels. Food intake by the mice in the CO-L and CO-H groups was statistically significantly less when compared to that by the animals in the C group. However, neither CO treatment had a statistically significant effect on calorie intake when compared to the controls. The CO-H exhibited a significant increase in serum total cholesterol and low-density lipoprotein but showed a downward trend in triglyceride levels compared to the control. The GM analyses revealed that both CO treatments have no significant influence on bacterial diversity and relative abundance at the phylum level, whereas increases of Choa1 and abundance-based coverage estimator indexes, distinct β-diversity, and Proteobacteria abundance were observed in the PO-high group compared with the C group. Furthermore, the abundance of Azospirillum thiophilum and Romboutsia ilealis was significantly higher in the CO-L and CO-H groups which could be associated with energy metabolic activity. Thus, CO may be an alternative fat source for preserving host metabolism and gut flora.
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Affiliation(s)
- Kongphop Parunyakul
- Faculty of Science, Department of Zoology, Kasetsart University, Bangkok, Thailand
| | - Aphisara Chuchoiy
- Faculty of Science, Department of Zoology, Kasetsart University, Bangkok, Thailand
| | - Sasiporn Kooltueon
- Faculty of Science, Department of Zoology, Kasetsart University, Bangkok, Thailand
| | | | - Krittika Srisuksai
- Faculty of Science, Department of Zoology, Kasetsart University, Bangkok, Thailand
| | - Pitchaya Santativongchai
- Faculty of Veterinary Medicine, Bio-Veterinary Sciences (International Program), Kasetsart University, Bangkok, Thailand
| | - Urai Pongchairerk
- Faculty of Veterinary Medicine, Department of Anatomy, Kasetsart University, Bangkok, Thailand
| | - Phitsanu Tulayakul
- Faculty of Veterinary Medicine, Department of Veterinary Public Health, Kasetsart University, Nakhon Pathom, Thailand
| | - Teerasak E-kobon
- Faculty of Science, Department of Genetics, Kasetsart University, Bangkok, Thailand
| | - Wirasak Fungfuang
- Faculty of Science, Department of Zoology, Kasetsart University, Bangkok, Thailand
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Valli FE, Leiva PML, Lavandera J, Contini MC, Gerstner C, Piña CI, Simoncini MS, González MA. Caiman's fat enriched with n-3 fatty acids: potential food supplement. Trop Anim Health Prod 2023; 55:194. [PMID: 37145203 DOI: 10.1007/s11250-023-03602-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 04/18/2023] [Indexed: 05/06/2023]
Abstract
Broad-snouted caiman (Caiman latirostris) products (meat, fat and oil) are currently beginning to be valued as a food of special interest due to its high content of n-3 fatty acids. Thus, the objective of this study was to characterize the fats of caiman fed with diets enriched with flaxseeds (Linus usitatissimun) rich in n-3 fatty acids, lignans and antioxidants. Caimans were fed six days a week with: a control diet (C), and a diet enriched with ground flaxseed = 90% C + 10% flaxseed ground (FS), during 30 (FS30) and 60 (FS60) days. Animals fed the flaxseed-enriched diets increased linolenic acid content and reduced the n-6/n-3 ratio of fats relative to controls, and this improvement increased over time. The proportion of eicosapentaenoic acid also increased, but there was no difference at the time the enriched diets were offered. Caiman fat of the FS30 and FS60, showed a decrease in lipoperoxidation (24% and 40%) and reactive oxygen species (44% and 76%) accompanied by an increase in antioxidant systems. Consumption of a flax-enriched diet by caimans increases the content of essential fatty acids and improves the lipoperoxidative status of fat. This provides an enriched fat with potential for the development products for human consumption.
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Affiliation(s)
- Florencia E Valli
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Avda. Rivadavia 1917, CP, C1033AAJ, Buenos Aires, Argentina
- Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Ciudad Universitaria, 3000, Santa Fe, Argentina
- CICyTTP-CONICET/Prov. Entre Ríos/UADER, España 149 3105, Diamante, Entre Ríos, Argentina
- Proyecto Yacaré, Laboratorio de Zoología Aplicada: Anexo Vertebrados, FHUC/UNL, Aristóbulo del Valle 8700, Santa Fe, Santa Fe, Argentina
| | - Pamela M L Leiva
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Avda. Rivadavia 1917, CP, C1033AAJ, Buenos Aires, Argentina
- Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Ciudad Universitaria, 3000, Santa Fe, Argentina
- CICyTTP-CONICET/Prov. Entre Ríos/UADER, España 149 3105, Diamante, Entre Ríos, Argentina
- Proyecto Yacaré, Laboratorio de Zoología Aplicada: Anexo Vertebrados, FHUC/UNL, Aristóbulo del Valle 8700, Santa Fe, Santa Fe, Argentina
- Facultad de Ciencia y Tecnología, Universidad Autónoma de Entre Ríos, Tratado del Pilar 314 3105, Entre Ríos, Diamante, Argentina
| | - Jimena Lavandera
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Avda. Rivadavia 1917, CP, C1033AAJ, Buenos Aires, Argentina
- Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Ciudad Universitaria, 3000, Santa Fe, Argentina
| | - María C Contini
- Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Ciudad Universitaria, 3000, Santa Fe, Argentina
| | - Carolina Gerstner
- Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Ciudad Universitaria, 3000, Santa Fe, Argentina
| | - Carlos I Piña
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Avda. Rivadavia 1917, CP, C1033AAJ, Buenos Aires, Argentina
- CICyTTP-CONICET/Prov. Entre Ríos/UADER, España 149 3105, Diamante, Entre Ríos, Argentina
- Proyecto Yacaré, Laboratorio de Zoología Aplicada: Anexo Vertebrados, FHUC/UNL, Aristóbulo del Valle 8700, Santa Fe, Santa Fe, Argentina
- Facultad de Ciencia y Tecnología, Universidad Autónoma de Entre Ríos, Tratado del Pilar 314 3105, Entre Ríos, Diamante, Argentina
| | - Melina S Simoncini
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Avda. Rivadavia 1917, CP, C1033AAJ, Buenos Aires, Argentina.
- CICyTTP-CONICET/Prov. Entre Ríos/UADER, España 149 3105, Diamante, Entre Ríos, Argentina.
- Proyecto Yacaré, Laboratorio de Zoología Aplicada: Anexo Vertebrados, FHUC/UNL, Aristóbulo del Valle 8700, Santa Fe, Santa Fe, Argentina.
- Facultad de Ciencia y Tecnología, Universidad Autónoma de Entre Ríos, Tratado del Pilar 314 3105, Entre Ríos, Diamante, Argentina.
| | - Marcela A González
- Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Ciudad Universitaria, 3000, Santa Fe, Argentina.
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Yue Y, Yang J, Lu S, Ge J, Nie H, Liu K, Liu F, Li H, Yan H, Zhang T, Sun P, Sun H, Yang J, Zhou J, Cui Y. Simulated microgravity altered the proliferation, apoptosis, and extracellular matrix formation of L929 fibroblasts and the transforming growth factor-β1/Smad3 signaling pathway. Skin Res Technol 2023; 29:e13341. [PMID: 37231921 PMCID: PMC10167414 DOI: 10.1111/srt.13341] [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: 03/10/2023] [Accepted: 04/12/2023] [Indexed: 05/27/2023]
Abstract
Exposure to microgravity can adversely affect the fitness of astronauts. The integrity of the skin plays a crucial role in protecting against mechanical forces and infections, fluid imbalance, and thermal dysregulation. In brief, the skin wound may cause unknown challenges to the implementation of space missions. Wound healing is a physiological process that relies on the synergistic action of inflammatory cells, extracellular matrix (ECM), and various growth factors to maintain the integrity of skin after trauma. Fibroblasts are present almost throughout the entire process of wound repair, especially in the scar formation at the endpoint of wound healing. However, there is limited knowledge about the extent to which fibroblasts are affected by the lack of gravity during wound healing. In this study, we utilized the rotary cell culture system, a ground-based facility that mimics the weightless condition, to study the alterations of L929 fibroblast cells under simulated microgravity (SMG). Our results demonstrated that the SM condition exerted negative influences on the proliferation and ECM formation of the L929 fibroblast. Whereas, the apoptosis of fibroblast was significantly upregulated upon exposure to SMG conditions. Moreover, the transforming growth factor-β1/Smad3 (TGF-β1/smad3) signaling pathway of L929 fibroblast related to wound repair was also altered significantly under a weightless environment. Overall, our study provided evidence that fibroblasts are strongly sensitive to SMG and elucidated the potential value of the TGF-β1/Smad3 signaling pathway modulating wound healing in the future practice of space medicine.
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Affiliation(s)
- Yuan Yue
- Department of General SurgeryThe 306th Hospital of PLA‐Peking University Teaching HospitalBeijingChina
| | - Jia‐Qi Yang
- Department of General SurgeryThe 306th Hospital of PLA‐Peking University Teaching HospitalBeijingChina
| | - Sheng‐Yu Lu
- Department of General SurgeryThe 306th Hospital of PLA‐Peking University Teaching HospitalBeijingChina
| | - Jun Ge
- Department of General SurgeryThe 306th Hospital of PLA‐Peking University Teaching HospitalBeijingChina
| | - Hong‐Yun Nie
- Department of General SurgeryThe 306th Hospital of PLA‐Peking University Teaching HospitalBeijingChina
| | - Kai‐Ge Liu
- Department of General SurgeryStrategic Support Force Medical CenterBeijingChina
| | - Fei Liu
- Department of General SurgeryFuyang Tumor HospitalFuyangChina
| | - Hao Li
- Department of General SurgeryStrategic Support Force Medical CenterBeijingChina
| | - Hong‐Feng Yan
- Department of General SurgeryStrategic Support Force Medical CenterBeijingChina
| | - Tao Zhang
- Department of General SurgeryStrategic Support Force Medical CenterBeijingChina
| | - Pei‐Ming Sun
- Department of General SurgeryStrategic Support Force Medical CenterBeijingChina
| | - Hong‐Wei Sun
- Department of General SurgeryStrategic Support Force Medical CenterBeijingChina
| | - Jian‐Wu Yang
- Department of General SurgeryStrategic Support Force Medical CenterBeijingChina
| | - Jin‐Lian Zhou
- Department of PathologyStrategic Support Force Medical CenterBeijingChina
| | - Yan Cui
- Department of General SurgeryThe 306th Hospital of PLA‐Peking University Teaching HospitalBeijingChina
- Department of General SurgeryStrategic Support Force Medical CenterBeijingChina
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Antioxidant Activity of Crocodile Oil ( Crocodylus siamensis) on Cognitive Function in Rats. Foods 2023; 12:foods12040791. [PMID: 36832865 PMCID: PMC9956878 DOI: 10.3390/foods12040791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Revised: 02/08/2023] [Accepted: 02/10/2023] [Indexed: 02/16/2023] Open
Abstract
Crocodile oil (CO) is rich in monounsaturated fatty acids and polyunsaturated fatty acids. The antioxidant activity and cognitive effect of monounsaturated fatty acids and polyunsaturated fatty acids have been largely reported. This work aimed to investigate the effect of CO on antioxidant activity and cognitive function in rats. Twenty-one rats were divided into three treatment groups: (1) sterile water (NS), (2) 1 mL/kg of CO (NC1), and (3) 3 mL/kg of CO (NC3). Rats underwent oral gavage once daily for 8 weeks. CO treatment decreased the triglycerides level significantly compared with that in the NS group. CO had a free radical scavenging ability greater than that of olive oil but had no effect on levels of antioxidant markers in the brain. Expression of unique proteins in the CO-treatment group were correlated with the detoxification of hydrogen peroxide. Rats in the NC1 group had better memory function than rats in the NC3 group. Expression of unique proteins in the NC1 group was correlated with memory function. However, CO did not cause a decline in cognitive function in rats. CO can be an alternative dietary oil because it has a hypolipidemia effect and antioxidant activity. In addition, CO did not cause a negative effect on cognitive function.
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Wai Linn T, Kobroob A, Ngernjan M, Amornlerdpison D, Lailerd N, Wongmekiat O. Crocodile Oil Disrupts Mitochondrial Homeostasis and Exacerbates Diabetic Kidney Injury in Spontaneously Diabetic Torii Rats. Biomolecules 2022; 12:biom12081068. [PMID: 36008962 PMCID: PMC9406139 DOI: 10.3390/biom12081068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 07/30/2022] [Accepted: 07/30/2022] [Indexed: 12/04/2022] Open
Abstract
Diabetic nephropathy is currently the leading cause of end-stage renal disease (ESRD) in type 2 diabetes. Studies have suggested that supplementation with some fatty acids might reduce the risk and delay the progression to ESRD in patient with chronic kidney disease. Crocodile oil (CO) contains a variety of fatty acids, especially omega-3, -6 and -9, that have been reported to be beneficial to human health. This study examined the impact of long-term CO supplementation on the development of diabetic nephropathy in spontaneously diabetic Torii (SDT) rats. After diabetic verification, SDT rats were assigned to receive vehicle or CO at 500 and 1000 mg/kg BW, respectively, by oral gavage. Age-matched nondiabetic Sprague–Dawley rats were given vehicle or high-dose CO. After 28 weeks of intervention, CO failed to improve hyperglycemia and pancreatic histopathological changes in SDT rats. Unexpectedly, CO dose-dependently exacerbated the impairment of kidney and mitochondrial functions caused by diabetes. CO also disturbed the expressions of proteins involved in mitochondrial biogenesis, dynamics, and mitophagy. However, no significant alterations were observed in nondiabetic rats receiving high-dose CO. The findings reveal that CO has deleterious effects that aggravate diabetic kidney injury via disrupting mitochondrial homeostasis, possibly due to its improper omega-6: omega-3 ratio.
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Affiliation(s)
- Thiri Wai Linn
- Nutrition and Exercise Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; (T.W.L.); (N.L.)
| | - Anongporn Kobroob
- Division of Physiology, School of Medical Science, University of Phayao, Phayao 56000, Thailand;
| | - Metas Ngernjan
- Faculty of Fisheries Technology and Aquatic Resources, Maejo University, Chiang Mai 50290, Thailand; (M.N.); (D.A.)
| | - Doungporn Amornlerdpison
- Faculty of Fisheries Technology and Aquatic Resources, Maejo University, Chiang Mai 50290, Thailand; (M.N.); (D.A.)
- Center of Excellence in Agricultural Innovation for Graduate Entrepreneur, Maejo University, Chiang Mai 50290, Thailand
| | - Narissara Lailerd
- Nutrition and Exercise Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; (T.W.L.); (N.L.)
| | - Orawan Wongmekiat
- Integrative Renal Research Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
- Correspondence: ; Tel.: +66-53-935362
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Crocodile Oil Modulates Inflammation and Immune Responses in LPS-Stimulated RAW 264.7 Macrophages. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27123784. [PMID: 35744910 PMCID: PMC9229527 DOI: 10.3390/molecules27123784] [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: 05/01/2022] [Revised: 06/10/2022] [Accepted: 06/10/2022] [Indexed: 11/25/2022]
Abstract
Crocodile oil (CO) is generated from the fatty tissues of crocodiles as a by-product of commercial aquaculture. CO is extensively applied in the treatment of illnesses including asthma, emphysema, skin ulcers, and cancer, as well as wound healing. Whether CO has anti-inflammatory properties and encourages an immune response remains uncertain. The impact of CO on inflammatory conditions in lipopolysaccharide (LPS)-stimulated RAW 264.7 cells and the mechanisms behind it were examined in this work. Cells were treated with 0.125–2% CO dissolved in 0.5% propylene glycol with or without LPS. The production and expression of inflammatory cytokines and mediators were also examined in this research. CO reduced the synthesis and gene expression of interleukin-6 (IL-6). Consistently, CO inhibited the expression and synthesis of inflammatory markers including cyclooxygenase-2 (COX-2), prostaglandin E2 (PGE2), nitric oxide (NO), and nuclear factor kappa B (NF-κB). Furthermore, CO reduced the effects of DNA damage. CO also increased the cell-cycle regulators, cyclins D2 and E2, which improved the immunological response. CO might thus be produced as a nutraceutical supplement to help avoid inflammatory diseases.
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Parunyakul K, Srisuksai K, Santativongchai P, Pongchairerk U, Ampawong S, Tulayakul P, Fungfuang W. The first study on the effect of crocodile oil from Crocodylus siamensis on hepatic mitochondrial function for energy homeostasis in rats. Vet World 2022; 15:986-997. [PMID: 35698522 PMCID: PMC9178561 DOI: 10.14202/vetworld.2022.986-997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 03/11/2022] [Indexed: 11/30/2022] Open
Abstract
Background and Aim: Consumption of fatty acids (FA) can alter hepatic energy metabolism and mitochondrial function in the liver. Crocodile oil (CO) is rich in mono-and polyunsaturated FAs, which have natural anti-inflammatory and healing properties. In rat livers, we investigated the effect of CO on mitochondrial function for energy homeostasis. Materials and Methods: Twenty-one male Sprague-Dawley rats were divided into three groups at random. Group 1 rats were given sterile water (RO), Group 2 rats were given CO (3% v/w), and Group 3 rats were given palm oil (PO) (3% v/w). For 7 weeks, rats were given sterile water, CO, and PO orally. The researchers looked at body weight, food intake, liver weight, energy intake, blood lipid profiles, and mitochondria-targeted metabolites in the liver. The liver’s histopathology, mitochondrial architecture, and hydrolase domain containing 3 (HDHD3) protein expression in liver mitochondria were studied. Results: Body weight, liver weight, liver index, dietary energy intake, and serum lipid profiles were all unaffected by CO treatment. The CO group consumed significantly less food than the RO group. The CO group also had significantly higher levels of oxaloacetate and malate than the PO group. CO treatment significantly ameliorated hepatic steatosis, as evidenced by a greater decrease in the total surface area of lipid particles than PO treatment. CO administration preserved mitochondrial morphology in the liver by upregulating the energetic maintenance protein HDHD3. Furthermore, chemical-protein interactions revealed that HDHD3 was linked to the energy homeostatic pathway. Conclusion: CO may benefit liver function by preserving hepatic mitochondrial architecture and increasing energy metabolic activity.
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Affiliation(s)
- Kongphop Parunyakul
- Department of Zoology, Faculty of Science, Kasetsart University, Bangkok, Thailand
| | - Krittika Srisuksai
- Department of Zoology, Faculty of Science, Kasetsart University, Bangkok, Thailand
| | - Pitchaya Santativongchai
- Bio-Veterinary Sciences (International Program), Faculty of Veterinary Medicine, Kasetsart University, Bangkok, Thailand
| | - Urai Pongchairerk
- Department of Anatomy, Faculty of Veterinary Medicine, Kasetsart University, Bangkok, Thailand
| | - Sumate Ampawong
- Department of Tropical Pathology, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Phitsanu Tulayakul
- Department of Veterinary Public Health, Faculty of Veterinary Medicine, Kasetsart University, Nakhon Pathom, Thailand
| | - Wirasak Fungfuang
- Department of Zoology, Faculty of Science, Kasetsart University, Bangkok, Thailand
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11
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Devi MV, Poornima V, Sivagnanam UT. Wound healing in second-degree burns in rats treated with silver sulfadiazine: a systematic review and meta-analysis. J Wound Care 2022; 31:S31-S45. [DOI: 10.12968/jowc.2022.31.sup4.s31] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Objective: This study aims to assess the wound healing efficacy in second-degree burns in rats treated with 1% silver sulfadiazine (SSD)—a sulfonamide antibiotic. Method: This is a systematic literature review and meta-analysis performed according to the PICO (Population, Intervention, Comparison and Outcomes) strategy. Results: The review found 100 studies in PubMed, Web of Science and other search engines. Of these, 70 studies were pre-selected after removing duplicates. After independent analysis by two reviewers, only seven studies met the inclusion criteria for meta-analysis. All studies except one showed faster wound closure by the application of silver sulfadiazine ointment. Using a random effects model, healing was faster in SSD-treated groups when compared to the control group on day 21, with a statistically significant mean difference of –2.72 days (95% confidence interval: –4.99, –0.45) between treatment and control groups (p<0.01). Conclusion: The results of this meta-analysis revealed that SSD aided in faster healing of second-degree burns.
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Affiliation(s)
- Mohan Vimala Devi
- Biological Materials Laboratory, CSIR–Central Leather Research Institute, Adyar, Chennai, India
- Department of Leather Technology, (Housed at CSIR–Central Leather Research Institute), Alagappa College of Technology, Anna University, Chennai-600020, India
| | - Velswamy Poornima
- Biological Materials Laboratory, CSIR–Central Leather Research Institute, Adyar, Chennai, India
- Department of Leather Technology, (Housed at CSIR–Central Leather Research Institute), Alagappa College of Technology, Anna University, Chennai-600020, India
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12
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Morarasu S, Morarasu BC, Ghețu N, Dimofte MG, Iliescu R, Pieptu D. Experimental models for controlled burn injuries in rats: a systematic analysis of original methods and burn devices. J Burn Care Res 2021; 43:1055-1065. [PMID: 34888684 DOI: 10.1093/jbcr/irab234] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
AIM Despite a wide variety of models found in literature, choosing the right one can be difficult as many of them are lacking precise methodology. This study aims to analyze and compare original burn models in terms of burn device and technique, parameters, and wound depth assessment. METHODS A systematic search was performed according to PRISMA guidelines on studies describing original experimental burn models in rats. The adapted PICO formula and ARRIVE checklist were followed for inclusion and assessment of quality of studies. Characteristics of animals, burn technique, burn parameters and method of histological confirmation of burn depth were recorded. RESULTS Twenty-seven studies were included in the final analysis. Most studies used direct contact with skin for burn infliction (n=20). The rat's dorsum was the most common site (n=18). Ten studies used manually controlled burn devices, while ten designed automatic burn devices with control over temperature (n=10), exposure time (n=5), and pressure (n=5). Most studies (n=7) used a single biopsy taken from the center of the wound to confirm burn depth immediately after burn infliction. CONCLUSION From the wide variety of burn models in current literature, our study provides an overview of the most relevant experimental burn models in rats aiding researchers to understand what needs to be addressed when designing their burn protocol. Models cannot be compared as burn parameters variate significantly. Assessment of burn depth should be done in a standardized, sequential fashion in future burn studies to increase reproducibility.
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Affiliation(s)
- Stefan Morarasu
- Center of Simulation and Training in Surgery (CSTC), Grigore T Popa University of Medicine and Pharmacy, Iasi, Romania.,2nd Department of Surgical Oncology, Regional Oncology Institute, Grigore T Popa University of Medicine and Pharmacy, Iasi, Romania
| | - Bianca-Codrina Morarasu
- Center of Simulation and Training in Surgery (CSTC), Grigore T Popa University of Medicine and Pharmacy, Iasi, Romania
| | - Nicolae Ghețu
- Center of Simulation and Training in Surgery (CSTC), Grigore T Popa University of Medicine and Pharmacy, Iasi, Romania.,Department of Plastic and Reconstructive Surgery, Grigore T Popa University of Medicine and Pharmacy, Iasi, Romania
| | - Mihail-Gabriel Dimofte
- 2nd Department of Surgical Oncology, Regional Oncology Institute, Grigore T Popa University of Medicine and Pharmacy, Iasi, Romania
| | - Radu Iliescu
- Department of Pharmacology, Grigore T Popa University of Medicine and Pharmacy, Iasi, Romania
| | - Dragos Pieptu
- Center of Simulation and Training in Surgery (CSTC), Grigore T Popa University of Medicine and Pharmacy, Iasi, Romania.,Department of Plastic and Reconstructive Surgery, Grigore T Popa University of Medicine and Pharmacy, Iasi, Romania
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13
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Ca-Alginate-PEGMA Hydrogels for In Situ Delivery of TGF-β Neutralizing Antibodies in a Mouse Model of Wound Healing. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11031164] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Hydrogels provide effective alternatives for drug delivery when therapeutics cannot be applied directly to a wound, or if adverse effects are associated with systemic administration. However, drug delivery vehicles need to be biocompatible and biodegradable and exhibit sufficient mechanical strength to withstand handling and different physiological conditions, such as those encountered during topical administration of a therapeutic. Wound healing can be divided into three phases stimulated by transforming growth factor-beta (TGF-β) and, subsequently, targeted therapeutics have been developed to inhibit this cytokine for the treatment of chronic wounds and to prevent scarring. In this study, the capacity of calcium alginate hydrogels plasticized with poly(ethylene glycol) methyl ether methacrylate (PEGMA) to deliver anti-TGF-β antibodies (1D11.16.8) to a wound was investigated in situ. Three levels of antibodies, 10, 50, and 100 μg, were loaded into calcium-alginate-PEGMA hydrogels and evaluated in an excisional wound model in mice. Hydrogels containing 50 and 100 μg 1D11.16.8 produced less inflammation, accompanied by a marked reduction in collagen deposition and cell infiltration. These findings demonstrate the capacity of calcium-alginate-PEGMA hydrogels to deliver larger proteins, such as antibodies, to the site of a wound.
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14
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Li HL, Liu XT, Huang SM, Xiong YX, Zhang ZR, Zheng YH, Chen QX, Chen QH. Repair function of essential oil from Crocodylus Siamensis (Schneider, 1801) on the burn wound healing via up-regulated growth factor expression and anti-inflammatory effect. JOURNAL OF ETHNOPHARMACOLOGY 2021; 264:113286. [PMID: 32827658 DOI: 10.1016/j.jep.2020.113286] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 06/22/2020] [Accepted: 08/11/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Crocodile oil has been used by traditional physicians around the world to treat wound healing and inflammation. However, the scientific rationale and mechanism behind its use in vivo has not been fully researched. AIMS OF THE STUDY We mainly investigated the mechanism during crocodile oil treatment of up-regulated growth factor expression and anti-inflammatory on burn wound healing in rats. MATERIALS AND METHODS The moisture and nitric oxide (NO) levels in the skin of rats were analyzed in the first 14 days after burn and the changes of the structure of the skin tissues in the wound healing were studied by hematoxylin-eosin (H.E.) staining within 21 days after scald. The inflammatory factor on burn wound healing in rats was dected by ELISA kits and Q-PCR. the expression of a variety of growth factors (TGF-β1, VEGE-α, EGF) and PCNA in the skin tissue after burns was evaluated using immunohistochemistry. The down-regulated phosphorylation of p38 MAPK in the wound healing was confirmed by Western-blot analysis. In addition, TEM was used to observe the ultrastructure of scalded skin. RESULTS This study showed that crocodile oil could significantly reduce the protein and mRNA levels of TNF-α, IL-1β and IL-6. And it was found that the phosphorylation of p38 MAPK was down-regulated in the wound healing (p < 0.05). Meanwhile, crocodile oil can promote the expression of a variety of growth factors (TGF-β1, VEGE-α, EGF) and PCNA in the skin tissue after burns, and promote the repair of collagen fibers in the dermis, preventing the production of melanin and maintain the appearance of repaired skin.
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Affiliation(s)
- Hua-Liang Li
- School of Life Sciences, Xiamen University, Xiamen, 361005, China; Fujian Tuolong Industrial Limited Company, Xiamen, 361026, China.
| | - Xiao-Tian Liu
- School of Life Sciences, Xiamen University, Xiamen, 361005, China.
| | - Shao-Min Huang
- Centre for Reproductive Medicine, The First Affiliated Hospital of Xiamen, China
| | - You-Xiong Xiong
- Fujian Tuolong Industrial Limited Company, Xiamen, 361026, China
| | - Zi-Ran Zhang
- Fujian Tuolong Industrial Limited Company, Xiamen, 361026, China
| | - Ya-Hui Zheng
- School of Life Sciences, Xiamen University, Xiamen, 361005, China
| | - Qing-Xi Chen
- School of Life Sciences, Xiamen University, Xiamen, 361005, China.
| | - Qiong-Hua Chen
- Centre for Reproductive Medicine, The First Affiliated Hospital of Xiamen, China.
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15
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Jiji S, Udhayakumar S, Maharajan K, Rose C, Muralidharan C, Kadirvelu K. Bacterial cellulose matrix with in situ impregnation of silver nanoparticles via catecholic redox chemistry for third degree burn wound healing. Carbohydr Polym 2020; 245:116573. [DOI: 10.1016/j.carbpol.2020.116573] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 04/16/2020] [Accepted: 06/02/2020] [Indexed: 02/07/2023]
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16
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Santativongchai P, Fungfuang W, Boonyawiwat V, Pongchairerk U, Tulayakul P. Comparison of Physicochemical Properties and Fatty Acid Composition of Crocodile Oil (Crocodylus siamensis) Extracted by Using Various Extraction Methods. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2020. [DOI: 10.1080/10942912.2020.1814324] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Pitchaya Santativongchai
- Graduate Students, Bio-Veterinary Science (International Program), Faculty of Veterinary Medicine, Kasetsart University, Chatuchak, Bangkok, Thailand
| | - Wirasak Fungfuang
- Department of Zoology, Faculty of Science, Kasetsart University, Chatuchak, Bangkok, Thailand
| | - Visanu Boonyawiwat
- Department of Farm Resources and Production Medicine, Faculty of Veterinary Medicine, Kasetsart University, Nakhon Pathom, Thailand
| | - Urai Pongchairerk
- Department of Anatomy, Faculty of Veterinary Medicine, Kasetsart University, Chatuchak, Bangkok, Thailand,
| | - Phitsanu Tulayakul
- Department of Veterinary Public Health, Faculty of Veterinary Medicine, Kasetsart University, Nakhon Pathom, Thailand
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17
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Lin M, Zeng C, Li Z, Ma Y, Jia X. Comparative analysis of the composition and function of fecal-gut bacteria in captive juvenile Crocodylus siamensis between healthy and anorexic individuals. Microbiologyopen 2019; 8:e929. [PMID: 31482690 PMCID: PMC6925159 DOI: 10.1002/mbo3.929] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2019] [Revised: 08/09/2019] [Accepted: 08/13/2019] [Indexed: 01/05/2023] Open
Abstract
The Siamese crocodile (Crocodylus siamensis) is a freshwater, endangered crocodile with high economic value in the farming industry. Gut microflora plays an essential role in host physiological activity, and it contributes significantly to both the health and diseased states of animals. However, thus far, no study has focused on the correlation between diseases and intestinal bacterial communities in crocodilians. Here, we first compared the composition and function of gut microbial communities in captive juvenile C. siamensis suffering from anorexia and healthy crocodile controls using deep amplicon sequencing. The gut microbial diversity of anorexic crocodiles was much lower than the healthy individuals. Obvious changes in gut microbial composition were observed between sick and healthy crocodiles, except for Cetobacterium somerae of phylum Fusobacteria. In particular, the abundance of Bacteroides luti, Clostridium disporicum, Plesiomonas shigelloides, and Odoribacter sp. in the gut flora of healthy crocodiles was distinctly higher than the diseased group. Conversely, the species Edwardsiella tarda was overrepresented in the gut of anorexic crocodiles compared to the healthy group. Furthermore, in anorexic crocodiles, the predicted microbial functions that were related to amino acid metabolism, biosynthesis of other secondary metabolites, nucleotide metabolism, replication and repair, and translation were significantly reduced, while signal transduction was significantly enriched. These findings of the present study provide a reference to enrich the field of gut microorganism studies in crocodilians and suggest that alterations in the composition and function of gut bacteria in C. siamensis juveniles may be associated with anorexia in crocodiles.
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Affiliation(s)
- Mao Lin
- Engineering-Technology Research Center for Fishery Medicine, Fisheries College, Jimei University, Xiamen, China.,Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Xiamen, China
| | - Chenxi Zeng
- Engineering-Technology Research Center for Fishery Medicine, Fisheries College, Jimei University, Xiamen, China
| | - Zhongqin Li
- Engineering-Technology Research Center for Fishery Medicine, Fisheries College, Jimei University, Xiamen, China
| | - Ying Ma
- Engineering-Technology Research Center for Fishery Medicine, Fisheries College, Jimei University, Xiamen, China
| | - Xueqing Jia
- Engineering-Technology Research Center for Fishery Medicine, Fisheries College, Jimei University, Xiamen, China
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18
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Cabbaroğlu D, Songür Kodik M, Uyanıkgil Y, Çetin Uyanıkgil EÖ, Karabey F, Kıyan S. Temas tipi yanıklarda Hypericum perforatum (sarı kantaron) ile tedavi: Deneysel bir çalışma. EGE TIP DERGISI 2019. [DOI: 10.19161/etd.512502] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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19
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Bardi E, Vetere A, Aquaro V, Lubian E, Lauzi S, Ravasio G, Zani DD, Manfredi M, Tecilla M, Roccabianca P, Romussi S. Use of Thrombocyte–Leukocyte-Rich Plasma in the Treatment of Chronic Oral Cavity Disorders in Reptiles: Two Case Reports. J Exot Pet Med 2019. [DOI: 10.1053/j.jepm.2018.06.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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20
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Li XQ, Kang R, Huo JC, Xie YH, Wang SW, Cao W. Wound-healing Activity of Zanthoxylum bungeanum Maxim Seed Oil on Experimentally Burned Rats. Pharmacogn Mag 2017; 13:363-371. [PMID: 28839358 PMCID: PMC5551351 DOI: 10.4103/pm.pm_211_16] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 06/11/2016] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND The seed oil of Zanthoxylum bungeanum Maxim (ZBSO) is considered to be rich source of fatty acids, mainly oleic and linoleic acids, and has been used for the treatment of burns in Chinese medicine. OBJECTIVE We evaluated the healing efficacy of ZBSO and explored its possible mechanism on scalded rats. MATERIALS AND METHODS Sprague-Dawley rat models with deep second-degree burns were set up, and ZBSO (500 and 1000 μl/wound) was topically applied twice daily for 7 days and then once daily until wound healing. The therapeutic effects of ZBSO were evaluated by observing wound closure time, decrustation time, wound-healing ratio, and pathological changes. Collagen type-III, matrix metalloproteinase-2 (MMP-2), MMP-9, phospho-nuclear factor-κB (p-NF-κB) p65, inhibitor of NF-κB subunit α p-IκBα, and inhibitor of NF-κB subunit α (IκBα) expression were determined using Western blotting. RESULTS The ZBSO-treated group showed a higher wound-healing ratio and shorter decrustation and wound closure times than the untreated group. The topical application of ZBSO increased collagen synthesis as evidenced by an increase in hydroxyproline level and upregulated expression of collagen type-III on days 7, 14, and 21 posttreatment. A reduction in MMP-2 and MMP-9 expressions also confirmed the collagen formation efficacy of ZBSO. Furthermore, there was a significant increase in superoxide dismutase levels and a decrease in malondialdehyde levels in ZBSO-treated wounds. ZBSO also decreased tumor necrosis factor alpha, interleukin-1 (IL-1) β, and IL-6 levels in serum, upregulated IκBα, and downregulated p-NF-κB p65 and p-IκBα expression in vivo, indicating the anti-inflammatory action of ZBSO. CONCLUSION ZBSO has significant potential to treat burn wounds by accelerating collagen synthesis and the anti-inflammatory cascade of the healing process. SUMMARY The seed oil of Zanthoxylum bungeanum Maxim (ZBSO) is rich of fatty acidsThe healing efficacy of ZBSO on experimentally scalded rats was evaluatedZBSO has significant potential to treat deep second-degree burn woundsZBSO could accelerate collagen synthesis and inhibit the inflammatory signaling. Abbreviations used: ECL: Enhanced chemiluminescence; ECM: Extracellular matrix; ELISA: Enzyme-linked immunosorbent assay; GC-MS: Gas chromatography-mass spectrometry; HRP: Horseradish peroxidase; HYP: Hydroxyproline; IκBα: Inhibitor of NF-κB subunit α; IL: Interleukin; MDA: Malondialdehyde; MMP: Matrix metalloproteinase-2; NF-κB: Nuclear factor-κB; SFE: Supercritical fluid extraction; SOD: Superoxide dismutase; SSD: Silver sulfadiazine; TCM: Traditional Chinese medicine; TNF: Tumor necrosis factor.
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Affiliation(s)
- Xiao-Qiang Li
- Department of Pharmacology, School of Pharmacy, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Rong Kang
- Department of Natural Medicine, Institute of Materia Medica, School of Pharmacy, Fourth Military Medical University, Xi'an, Shaanxi 710032, China.,Department of Pharmaceutics, School of Pharmacy, Xi'an Medical University, Xi'an, Shaanxi 710032, China
| | - Jun-Cheng Huo
- Department of Natural Medicine, Institute of Materia Medica, School of Pharmacy, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Yan-Hua Xie
- Department of Natural Medicine, Institute of Materia Medica, School of Pharmacy, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Si-Wang Wang
- Department of Natural Medicine, Institute of Materia Medica, School of Pharmacy, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Wei Cao
- Department of Natural Medicine, Institute of Materia Medica, School of Pharmacy, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
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Melo RB, de Barros Silva PG, Oriá RB, Melo JUDS, da Silva Martins C, Cunha AM, Vasconcelos PRL. Anti-inflammatory effect of a fatty acid mixture with high ω-9:ω-6 ratio and low ω-6:ω-3 ratio on rats submitted to dental extraction. Arch Oral Biol 2017; 74:63-68. [DOI: 10.1016/j.archoralbio.2016.11.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2016] [Revised: 10/30/2016] [Accepted: 11/11/2016] [Indexed: 11/25/2022]
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22
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Rahimnejad M, Derakhshanfar S, Zhong W. Biomaterials and tissue engineering for scar management in wound care. BURNS & TRAUMA 2017; 5:4. [PMID: 28127573 PMCID: PMC5251275 DOI: 10.1186/s41038-017-0069-9] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Accepted: 01/12/2017] [Indexed: 04/24/2023]
Abstract
Scars are a natural and unavoidable result from most wound repair procedures and the body's physiological healing response. However, they scars can cause considerable functional impairment and emotional and social distress. There are different forms of treatments that have been adopted to manage or eliminate scar formation. This review covers the latest research in the past decade on using either natural agents or synthetic biomaterials in treatments for scar reduction.
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Affiliation(s)
| | | | - Wen Zhong
- University of Manitoba, Winnipeg, MB Canada
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23
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Li HL, Deng YT, Zhang ZR, Fu QR, Zheng YH, Cao XM, Nie J, Fu LW, Chen LP, Xiong YX, Shen DY, Chen QX. EVALUATION OF EFFECTIVENESS IN A NOVEL WOUND HEALING OINTMENT-CROCODILE OIL BURN OINTMENT. AFRICAN JOURNAL OF TRADITIONAL, COMPLEMENTARY, AND ALTERNATIVE MEDICINES 2016; 14:62-72. [PMID: 28480384 PMCID: PMC5411886 DOI: 10.21010/ajtcam.v14i1.8] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Background: Crocodile oil and its products are used as ointments for burns and scalds in traditional medicines. A new ointment formulation - crocodile oil burn ointment (COBO) was developed to provide more efficient wound healing activity. The purpose of the study was to evaluate the burn healing efficacy of this new formulation by employing deep second-degree burns in a Wistar rat model. The analgesic and anti-inflammatory activities of COBO were also studied to provide some evidences for its further use. Materials and methods: The wound healing potential of this formulation was evaluated by employing a deep second-degree burn rat model and the efficiency was comparatively assessed against a reference ointment - (1% wt/wt) silver sulfadiazine (SSD). After 28 days, the animals were euthanized and the wounds were removed for transversal and longitudinal histological studies. Acetic acid-induced writhing in mice was used to evaluate the analgesic activity and its anti-inflammatory activity was observed in xylene -induced edema in mice. Results: COBO enhanced the burn wound healing (20.5±1.3 d) as indicated by significant decrease in wound closure time compared with the burn control (25.0±2.16 d) (P<0.01). Hair follicles played an importance role in the physiological functions of the skin, and their growth in the wound could be revealed for the skin regeneration situation. Histological results showed that the hair follicles were well-distributed in the post-burn skin of COBO treatment group, and the amounts of total, active, primary and secondary hair follicles in post-burn 28-day skin of COBO treatment groups were more than those in burn control and SSD groups. On the other hand, the analgesic and anti-inflammatory activity of COBO were much better than those of control group, while they were very close to those of moist exposed burn ointment (MEBO). Conclusions: COBO accelerated wound closure, reduced inflammation, and had analgesic effects compared with SSD in deep second degree rat burn model. These findings suggest that COBO would be a potential therapy for treating human burns. Abbreviations: COBO, crocodile oil burn ointment; SSD, silver sulfadiazine; MEBO, moist exposed burn ointment; TCM, traditional Chinese medicine; CHM, Chinese herbal medicine; GC-MS, gas chromatography-mass spectrometry.
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Affiliation(s)
- Hua-Liang Li
- State Key Laboratory of Cellular Stress Biology, State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361005, China.,Guangzhou TuoLong Bio-technology Co., Ltd., Guangzhou, China
| | - Yi-Tao Deng
- State Key Laboratory of Cellular Stress Biology, State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361005, China
| | - Zi-Ran Zhang
- State Key Laboratory of Cellular Stress Biology, State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361005, China
| | - Qi-Rui Fu
- State Key Laboratory of Cellular Stress Biology, State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361005, China
| | - Ya-Hui Zheng
- State Key Laboratory of Cellular Stress Biology, State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361005, China
| | - Xing-Mei Cao
- State Key Laboratory of Cellular Stress Biology, State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361005, China
| | - Jing Nie
- State Key Laboratory of Cellular Stress Biology, State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361005, China
| | - Li-Wen Fu
- State Key Laboratory of Cellular Stress Biology, State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361005, China
| | - Li-Ping Chen
- State Key Laboratory of Cellular Stress Biology, State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361005, China
| | - You-Xiong Xiong
- Guangzhou TuoLong Bio-technology Co., Ltd., Guangzhou, China
| | - Dong-Yan Shen
- Biobank, The First Affiliated Hospital of Xiamen University, Xiamen 361003, China
| | - Qing-Xi Chen
- State Key Laboratory of Cellular Stress Biology, State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361005, China
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Venter T, Fox LT, Gerber M, du Preez JL, van Zyl S, Boneschans B, du Plessis J. Physical stability and clinical efficacy of Crocodylus niloticus oil lotion. REVISTA BRASILEIRA DE FARMACOGNOSIA-BRAZILIAN JOURNAL OF PHARMACOGNOSY 2016. [DOI: 10.1016/j.bjp.2016.03.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Nasiri E, Hosseinimehr SJ, Azadbakht M, Akbari J, Enayati-Fard R, Azizi S. The effect of Terminalia chebula extract vs. silver sulfadiazine on burn wounds in rats. JOURNAL OF COMPLEMENTARY & INTEGRATIVE MEDICINE 2016; 12:127-35. [PMID: 25849801 DOI: 10.1515/jcim-2014-0068] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2014] [Accepted: 01/15/2015] [Indexed: 11/15/2022]
Abstract
BACKGROUND The aim of this study was to evaluate the efficacy of ethanol extract of Terminalia chebula in the treatment of hot water-induced burn wounds and to compare the results with silver sulfadiazine (SSD) in rats. METHODS Five groups of ten rats were burned with hot water. Animals were administrated with topical cream at control, normal saline, 5%, 10% T. chebula extracts and standard SSD creams. Several parameters were assessed, including wound area, visual inspection of wound, bacteriology assessment, percentage of wound contraction and histopathological examination. RESULTS The average area of wound on 10th day was 11.2 ± 3.3, 11 ± 3.2, 8.5 ± 2.3, 9.5 ± 4.2 and 5.1 ± 2.2 cm(2) for SSD1%, base cream, normal saline, herbal extract 5% and 10%, respectively. T. chebula 10% cream exhibited lower wound size than SSD1% and control groups at 10th day post burn injury. On day 15, the percentage of wound contraction in T. chebula was 5% and 10% more than 18% and 53% in comparison to SSD1% group, respectively. Histopathological results exhibited well-formed horizontally oriented collagen fibers for appropriate tension. Strength of scar on burned tissue was better in T. chebula 5% and 10% as compared with control and SSD groups. CONCLUSIONS The results of this study showed that T. chebula extract was capable of accelerating wound healing in rats by wound contraction, and had beneficial effects more than SSD 1% cream in the management of burn injury.
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Campelo APBS, Campelo MWS, Brito GADC, Jamacaru FVF, Leitão RFDC, Vasconcelos PRLD. Oil mixes omega 9, 6 and 3, enriched with seaweed, promoted reduction of thermal burned modulating NF-kB and Ki-67. Acta Cir Bras 2015; 30:430-8. [PMID: 26108032 DOI: 10.1590/s0102-865020150060000009] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Accepted: 05/09/2015] [Indexed: 01/14/2023] Open
Abstract
PURPOSE To examine the effects of the oil mixes (ω-9, ω-6 and ω-3) in rats subjected to thermal burn. It was also aimed to assess whether the sources of ω3 would interfere with the effect of such mixes on the thermal injury. METHODS Thirty-six rats distributed into five groups: burned + water, burned + isolipid mix, burned + oil mix 1 (ALA), burned + oil mix 2 (ALA + EPA + DHA of fish) and burned + oil mix 3 (ALA + DHA from seaweed). The thermal injury was involving total thickness of skin. After the burns animals received the oil mixes for seven days. The lesions were evaluated by immunohistochemistry. RESULTS Animals receiving mix 3 showed a smaller extension of the thermal injury as compared to those that were supplemented with other oils mixes. Expression of Ki-67 in the receiving Mix 3 increased as compared to all the other groups. Animals supplemented with mix 3 were able to inhibit NF-κB in injured tissue. CONCLUSION Rats received oil mix in which the source of ω3 (ALA+DHA of seaweed) showed inhibition of NF-κB, increase in cell proliferation, and reduction the extension of thermal lesion.
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Bacterial cellulose membrane produced by Acetobacter sp. A10 for burn wound dressing applications. Carbohydr Polym 2015; 122:387-98. [DOI: 10.1016/j.carbpol.2014.10.049] [Citation(s) in RCA: 84] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2014] [Revised: 10/02/2014] [Accepted: 10/16/2014] [Indexed: 11/23/2022]
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Pan Z, Xu L, Zhu Y, Shi H, Chen Z, Chen M, Chen Q, Liu B. Characterization of a new cry2Ab gene of Bacillus thuringiensis with high insecticidal activity against Plutella xylostella L. World J Microbiol Biotechnol 2014; 30:2655-62. [PMID: 24943249 DOI: 10.1007/s11274-014-1689-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2014] [Accepted: 06/11/2014] [Indexed: 10/25/2022]
Abstract
Bacillus thuringiensis (Bt) strain FJAT-12 was a novel Bt strain isolated by Agricultural Bio-Resources Institute, Fujian Academy of Agricultural Science. In this study, a new cry2Ab gene was cloned from Bt strain FJAT-12 and named as cry2Ab30 by Bt delta-endotoxin Nomenclature Committee. The sequencing results showed there were two mutations in conservative sites which led to two amino acids modification. Homology modeling indicated that the two changes were located in β-sheet of Domain II. A prokaryotic expression vector pET30a-cry2Ab30 was constructed and the expressed protein was analyzed by western blot using Cry2Ab antibody. The expression conditions including IPTG concentration, revolution and temperature were optimized to get the highest expression level by SDS-PAGE and BandScan. The bioassay results also showed that the Cry2Ab30 toxin had high insecticidal activity against Plutella xylostella and the LC50 value was 0.0103 μg.mL(-1). The two mutations in β-sheet of Domain II might contribute to insecticidal activity of Cry2Ab30 toxin against Plutella xylostella.
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Affiliation(s)
- Zhizhen Pan
- Agricultural Bio-Resources Institute, Fujian Academy of Agricultural Sciences, Fuzhou, 350003, China
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Abstract
OBJECTIVE Excessive collagen deposition causes hypertrophic scarring after dermal wound repair. It can be functionally and cosmetically debilitating to many patients. A direct approach to the control of scar tissue formation is pharmacological regulation of collagen synthesis and deposition. Some studies reported that hepatocyte growth factor (HGF) plays an important role in scar formation. Hepatocyte growth factor can improve tissue fibrosis and reverse the imbalance of collagen metabolism. However, an in vivo study has not been reported concerning the use of HGF in controlling hypertrophy of skin scar until now. METHODS The authors tested the ability of HGF to reduce hypertrophic scar formation in a rabbit ear model. After the placement of three 5-mm dermal wounds on each ear, New Zealand white rabbits received HGF subcutaneously in the left ear at 4 time points on postwounding days 15, 30, 45, and 90. The left ear of each animal served as a control without HGF treatment. Scars were harvested at postoperative 6 months and scar hypertrophy quantified by measurement of the scar elevation index. RESULTS The experimental data showed that treatment of scars with HGF decreased scar formation. The HGF treatment resulted in a statistically significant reduction in the scar elevation index (P < .01). CONCLUSION The authors' results indicate the potential use of HGF to treat hypertrophic scarring, which shows important significance for antiscarring therapy.
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Marinho PC, Neto-Ferreira R, José de Carvalho J. Evaluation of therapeutic intervention with a natural product in cutaneous wound healing: the use of capybara oil. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2013; 2013:217198. [PMID: 23840249 PMCID: PMC3691902 DOI: 10.1155/2013/217198] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/16/2013] [Accepted: 05/19/2013] [Indexed: 12/05/2022]
Abstract
Capybara oil is commonly used for cutaneous wound healing in traditional South American medicine, although its beneficial effect has never been experimentally proven. The aim of this study was to investigate the effects of the topical application of capybara oil on skin wounds in Swiss mice. The following characteristics of the wounds were observed and evaluated: wound contraction and reepithelialization, the number of polymorphonuclear leukocytes and mast cells, the thickness of the neoepidermis, and the distribution of collagen and elastic fibers. Our study showed that oil extracted from subcutaneous capybara fat was beneficial for wound healing, indicating that capybara oil plays an important role in promoting tissue repair.
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Affiliation(s)
- Polyana Cury Marinho
- Laboratory of Ultrastructure and Tecidual Biology, Biomedical Center, Institute of Biology, State University of Rio de Janeiro, 20551-030 Rio de Janeiro, RJ, Brazil
| | - Rodrigo Neto-Ferreira
- Laboratory of Ultrastructure and Tecidual Biology, Biomedical Center, Institute of Biology, State University of Rio de Janeiro, 20551-030 Rio de Janeiro, RJ, Brazil
| | - Jorge José de Carvalho
- Laboratory of Ultrastructure and Tecidual Biology, Biomedical Center, Institute of Biology, State University of Rio de Janeiro, 20551-030 Rio de Janeiro, RJ, Brazil
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