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Ushasree MV, Jia Q, Do SG, Lee EY. New opportunities and perspectives on biosynthesis and bioactivities of secondary metabolites from Aloe vera. Biotechnol Adv 2024; 72:108325. [PMID: 38395206 DOI: 10.1016/j.biotechadv.2024.108325] [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: 10/25/2023] [Revised: 01/10/2024] [Accepted: 02/15/2024] [Indexed: 02/25/2024]
Abstract
Historically, the genus Aloe has been an indispensable part of both traditional and modern medicine. Decades of intensive research have unveiled the major bioactive secondary metabolites of this plant. Recent pandemic outbreaks have revitalized curiosity in aloe metabolites, as they have proven pharmacokinetic profiles and repurposable chemical space. However, the structural complexity of these metabolites has hindered scientific advances in the chemical synthesis of these compounds. Multi-omics research interventions have transformed aloe research by providing insights into the biosynthesis of many of these compounds, for example, aloesone, aloenin, noreugenin, aloin, saponins, and carotenoids. Here, we summarize the biological activities of major aloe secondary metabolites with a focus on their mechanism of action. We also highlight the recent advances in decoding the aloe metabolite biosynthetic pathways and enzymatic machinery linked with these pathways. Proof-of-concept studies on in vitro, whole-cell, and microbial synthesis of aloe compounds have also been briefed. Research initiatives on the structural modification of various aloe metabolites to expand their chemical space and activity are detailed. Further, the technological limitations, patent status, and prospects of aloe secondary metabolites in biomedicine have been discussed.
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Affiliation(s)
- Mrudulakumari Vasudevan Ushasree
- Department of Chemical Engineering (BK21 FOUR Integrated Engineering Program), Kyung Hee University, Yongin-si, Gyeonggi-do 17104, Republic of Korea
| | - Qi Jia
- Unigen, Inc., 2121 South street suite 400 Tacoma, Washington 98405, USA
| | - Seon Gil Do
- Naturetech, Inc., 29-8, Yongjeong-gil, Chopyeong-myeon, Jincheon-gun, Chungcheongbuk-do 27858, Republic of Korea
| | - Eun Yeol Lee
- Department of Chemical Engineering (BK21 FOUR Integrated Engineering Program), Kyung Hee University, Yongin-si, Gyeonggi-do 17104, Republic of Korea.
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2
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Bhat AA, Afzal M, Goyal A, Gupta G, Thapa R, Almalki WH, Kazmi I, Alzarea SI, Shahwan M, Paudel KR, Ali H, Sahu D, Prasher P, Singh SK, Dua K. The impact of formaldehyde exposure on lung inflammatory disorders: Insights into asthma, bronchitis, and pulmonary fibrosis. Chem Biol Interact 2024; 394:111002. [PMID: 38604395 DOI: 10.1016/j.cbi.2024.111002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Revised: 03/27/2024] [Accepted: 04/07/2024] [Indexed: 04/13/2024]
Abstract
Lung inflammatory disorders are a major global health burden, impacting millions of people and raising rates of morbidity and death across many demographic groups. An industrial chemical and common environmental contaminant, formaldehyde (FA) presents serious health concerns to the respiratory system, including the onset and aggravation of lung inflammatory disorders. Epidemiological studies have shown significant associations between FA exposure levels and the incidence and severity of several respiratory diseases. FA causes inflammation in the respiratory tract via immunological activation, oxidative stress, and airway remodelling, aggravating pre-existing pulmonary inflammation and compromising lung function. Additionally, FA functions as a respiratory sensitizer, causing allergic responses and hypersensitivity pneumonitis in sensitive people. Understanding the complicated processes behind formaldehyde-induced lung inflammation is critical for directing targeted strategies aimed at minimizing environmental exposures and alleviating the burden of formaldehyde-related lung illnesses on global respiratory health. This abstract explores the intricate relationship between FA exposure and lung inflammatory diseases, including asthma, bronchitis, allergic inflammation, lung injury and pulmonary fibrosis.
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Affiliation(s)
- Asif Ahmad Bhat
- School of Pharmacy, Suresh Gyan Vihar University, Jagatpura, 302017, Mahal Road, Jaipur, India
| | - Muhammad Afzal
- Department of Pharmaceutical Sciences, Pharmacy Program, Batterjee Medical College, P.O. Box 6231, Jeddah, 21442, Saudi Arabia
| | - Ahsas Goyal
- Institute of Pharmaceutical Research, GLA University, Mathura, U.P., India
| | - Gaurav Gupta
- School of Pharmacy, Graphic Era Hill University, Dehradun, 248007, India; Centre of Medical and Bio-allied Health Sciences Research, Ajman University, Ajman, United Arab Emirates.
| | - Riya Thapa
- School of Pharmacy, Suresh Gyan Vihar University, Jagatpura, 302017, Mahal Road, Jaipur, India
| | - Waleed Hassan Almalki
- Department of Pharmacology, College of Pharmacy, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Imran Kazmi
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, 21589, Jeddah, Saudi Arabia
| | - Sami I Alzarea
- Department of Pharmacology, College of Pharmacy, Jouf University, 72341, Sakaka, Aljouf, Saudi Arabia
| | - Moyad Shahwan
- Centre of Medical and Bio-allied Health Sciences Research, Ajman University, Ajman, United Arab Emirates; Department of Clinical Sciences, College of Pharmacy and Health Sciences, Ajman University, Ajman, 346, United Arab Emirates
| | - Keshav Raj Paudel
- Centre for Inflammation, Centenary Institute and University of Technology Sydney, Faculty of Science, School of Life Sciences, Sydney, NSW, 2050, Australia
| | - Haider Ali
- Centre for Global Health Research, Saveetha Medical College, Saveetha Institute of Medical and Technical Sciences, Saveetha University, India; Department of Pharmacology, Kyrgyz State Medical College, Bishkek, Kyrgyzstan
| | - Dipak Sahu
- Department of Pharmacology, Amity University, Raipur, Chhattisgarh, India
| | - Parteek Prasher
- Department of Chemistry, University of Petroleum & Energy Studies, Energy Acres, Dehradun, 248007, India
| | - Sachin Kumar Singh
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab, 144411, India; Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology Sydney, Ultimo, NSW, 2007, Australia; School of Medical and Life Sciences, Sunway University, 47500 Sunway City, Malaysia
| | - Kamal Dua
- Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology Sydney, Ultimo, NSW, 2007, Australia; Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, NSW, 2007, Australia; Uttaranchal Institute of Pharmaceutical Sciences, Uttaranchal University, Dehradun, India.
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Warin R, Vongchan P, Suriyasathaporn W, Hall DC, Boripun R, Suriyasathaporn W. In Vitro Antimicrobial Properties and Their Mechanisms in Relation to Reactive Oxygen Species of Canine Platelet-Rich Fibrin. Animals (Basel) 2023; 13:3786. [PMID: 38136823 PMCID: PMC10740687 DOI: 10.3390/ani13243786] [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: 10/30/2023] [Revised: 11/24/2023] [Accepted: 12/06/2023] [Indexed: 12/24/2023] Open
Abstract
Platelet-rich fibrin (PRF), which has been shown to promote wound and bone regeneration, has demonstrated antimicrobial properties against periodontal pathogens. However, in veterinary medicine, no study has determined the antimicrobial effects of canine platelet-rich fibrin (cPRF). Therefore, this study aimed to determine the antimicrobial effect of cPRF against E. coli and S. pseudintermedius found in dogs' wounds and against the standard strain S. aureus. Additionally, the mechanism of the existing antibacterial activity of cPRF, which involves the formation of reactive oxygen species (ROS), was tested. Blood samples from six dogs were processed for cPRF. The antimicrobial properties of three groups (growth control, cPRF, and drug control) were evaluated at 0.5, 4, 8, and 24 h using a time-kill assay. The killing mechanisms involving ROS were evaluated using horseradish peroxidase (HRP) to suppress ROS production in PRF (PRF-SR). Subsequently, tests for antimicrobial properties and ROS generation were compared to those of the growth control and cPRF groups. The results showed that cPRF had significant antimicrobial properties against E. coli but no antimicrobial properties against S. pseudintermedius. After the ROS suppression, PRF-SR did not show an antimicrobial property against E. coli. Moreover, cPRF-treated bacteria exhibited significantly greater intracellular ROS than PRF-SR. In conclusion, canine PRF showed an antimicrobial effect against E. coli, and its antibacterial mechanism was related to releasing ROS.
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Affiliation(s)
- Ravisa Warin
- Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai 50100, Thailand; (R.W.); (W.S.)
| | - Preeyanat Vongchan
- Department of Medical Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai 50200, Thailand;
| | - Witaya Suriyasathaporn
- Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai 50100, Thailand; (R.W.); (W.S.)
- Research Center of Producing and Development of Products and Innovations for Animal Health and Production, Chiang Mai University, Chiang Mai 50100, Thailand
- Asian Satellite Campuses Institute, Cambodian Campus, Nagoya University, Nagoya 464-8601, Japan
| | - David C. Hall
- Faculty of Veterinary Medicine, University of Calgary, Calgary, AB T2N 4Z1, Canada;
| | - Ratchadaporn Boripun
- Akkhraratchakumari Veterinary College, Walailak University, Nakhon Si Thammarat 80160, Thailand;
| | - Wanna Suriyasathaporn
- Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai 50100, Thailand; (R.W.); (W.S.)
- Research Center of Producing and Development of Products and Innovations for Animal Health and Production, Chiang Mai University, Chiang Mai 50100, Thailand
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Barthe M, Gillot L, Perdigon L, Jacobs A, Schoonbroodt G, Mauhin P, Bouhajja E, Osman-Ponchet H. Topical Probiotic Formulation Promotes Rapid Healing in Dog Keratinocyte Cells: A Promising Approach for Wound Management. Int J Mol Sci 2023; 24:12360. [PMID: 37569735 PMCID: PMC10418306 DOI: 10.3390/ijms241512360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 07/19/2023] [Accepted: 08/01/2023] [Indexed: 08/13/2023] Open
Abstract
The use of probiotics has gained increasing attention as a strategy for wound healing to decrease microbial resistance to disinfectants and antibiotics. This study aimed to investigate the potential of a non-medicinal topical cocktail of probiotic bacteria (CPB) in promoting wound healing in dogs using in vitro scratch assay. Canine Progenitors Epidermal Keratinocytes (CPEK) were exposed to a prototype product formulated with CPB (PPP), non-formulated CPB, and the vehicle. The viability of CPB and CPEK cells was first evaluated in the co-culture model. Then, wound closure was analyzed over time. The CPB required a minimum concentration of 75 CFU/mL for better viability with CPEK. While the CPEK preserved 100% of their viability when PPP was diluted to up to 75,000 CFU/mL. At higher concentrations, the viability of CPEK was reduced by the concomitant effect of the non-formulated CPB and the vehicle. The formulated and non-formulated CPB and the vehicle seem to lead to a dose-dependent increase in cell migration compared to the control. Importantly, at the concentration of 750,000 CFU/mL, the PPP showed a 20% increase in wound closure. Taken together, our findings suggest the potential beneficial effects of the probiotic-based topical cocktail (PPP) on wound healing. However, to confirm and validate these effects, further experiments are necessary to provide more robust evidence and allow us to confidently establish the potential beneficial effects of the probiotic bacteria (CPB) in promoting wound healing.
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Affiliation(s)
- Manon Barthe
- PKDERM Laboratories, 06130 Grasse, France; (M.B.); (L.P.)
| | - Lionel Gillot
- Probiotic Group Luxembourg S.A., Research and Development Department, 9944 Weiswampach, Luxembourg; (L.G.); (A.J.); (G.S.); (P.M.)
| | | | - Aline Jacobs
- Probiotic Group Luxembourg S.A., Research and Development Department, 9944 Weiswampach, Luxembourg; (L.G.); (A.J.); (G.S.); (P.M.)
| | - Gregory Schoonbroodt
- Probiotic Group Luxembourg S.A., Research and Development Department, 9944 Weiswampach, Luxembourg; (L.G.); (A.J.); (G.S.); (P.M.)
| | - Paul Mauhin
- Probiotic Group Luxembourg S.A., Research and Development Department, 9944 Weiswampach, Luxembourg; (L.G.); (A.J.); (G.S.); (P.M.)
| | - Emna Bouhajja
- Probiotic Group Luxembourg S.A., Research and Development Department, 9944 Weiswampach, Luxembourg; (L.G.); (A.J.); (G.S.); (P.M.)
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Quantitative Assessment of Low-Dose Photodynamic Therapy Effects on Diabetic Wound Healing Using Raman Spectroscopy. Pharmaceutics 2023; 15:pharmaceutics15020595. [PMID: 36839917 PMCID: PMC9966264 DOI: 10.3390/pharmaceutics15020595] [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: 11/27/2022] [Revised: 01/17/2023] [Accepted: 02/08/2023] [Indexed: 02/12/2023] Open
Abstract
One of challenges that faces diabetes is the wound healing process. The delayed diabetic wound healing is caused by a complicated molecular mechanism involving numerous physiological variables. Low-dose photodynamic therapy (LDPDT) provides excellent results in rejuvenation and wound healing. In this study, the LDPDT effect on diabetic wounds in mice was studied using two photosensitizers, 5-aminolevulinic acid and methylene blue, and two laser dose expositions of 1 J/cm2 and 4 J/cm2 by Raman spectroscopy (RS). The latter was used as a noninvasive method, providing specific information about tissue state based on the fundamental vibrational modes of its molecular components. RS allows high spatial resolution acquisition of biochemical and structural information through the generation of point spectra or spectral images. An approach to in vivo quantitative assessment of diabetic wound healing state was developed. This approach is based on an application of the principal component analysis combined with the Mahalanobis metrics to skin Raman spectra, in particular, intensities of the amide I and CH2 bands.
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Zaccaron RP, Barbieri RT, Mendes C, Venturini LM, Alves N, Mariano SDS, de Andrade TAM, Hermes de Araújo PH, Feuser PE, Thirupathi A, Machado-de-Ávila RA, Lock Silveira PC. Photobiomodulation associated with lipid nanoparticles and hyaluronic acid accelerate the healing of excisional wounds. J Biomater Appl 2022; 37:668-682. [PMID: 35705485 DOI: 10.1177/08853282221109344] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Objectives: This article aimed to investigate the effects of the association between photobiomodulation and hyaluronic acid incorporated in lipid nanoparticles in an epithelial lesion model in inflammatory parameters and oxidative stress. Methods: Eighty Wistar rats were randomly assigned to the following groups: epithelial lesion group (EL); EL+PBM; EL+HA; EL+SLNs; EL+SLNs-HA; EL+PBM+HA; EL+PBM+SLNs; EL+PBM+SLNs-HA. The animals were anesthetized with 4% isofluorane after shaving and induced to an epithelial lesion. Topical treatment with a gel containing HA (0.9%) and/or SLNs (10 mg/mL) and with laser irradiation occurred daily for 1 week. Results: The results showed an increase in wound contraction on the seventh day in the LE + LBM + AH-NPL group, a reduction in pro-inflammatory cytokines (IL-6, IL-1β, and TNF-α), an increase in anti-inflammatory cytokines (IL- 4 and IL-10) and TGF-β. The levels of pro-inflammatory cytokine IL-4 and TGF-β also showed an increase in the LE + NPL-AH, LE + FBM + AH, LE + FBM + NPL and LE + FBM + NPL-AH groups. Regarding oxidative stress parameters, the levels of DCF and nitrite decreased in the combined therapy group when compared to the control group, as well as oxidative damage (carbonyl and sulfhydryl). In the antioxidant defense, there was an increase in GSH and SOD in the combination therapy group. Histological analysis showed a reduction in inflammatory infiltrate in the combination therapy group. The number of fibroblasts and the compaction of collagen fibers did not obtain significant responses. Conclusions: Results analyzed together showed that the combined therapy favored the repair process, and that studies can be carried out to enhance the histological analysis therapy favored the tissue repair process and that studies can be carried out to enhance the histological analysis.
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Affiliation(s)
- Rubya Pereira Zaccaron
- Laboratory of Experimental Phisiopatology, Program of postgraduate in Science of Health, 97853Universidade do Extremo Sul Catarinense, Criciúma, Brazil
| | - Rusilania Tozi Barbieri
- Laboratory of Experimental Phisiopatology, Program of postgraduate in Science of Health, 97853Universidade do Extremo Sul Catarinense, Criciúma, Brazil
| | - Carolini Mendes
- Laboratory of Experimental Phisiopatology, Program of postgraduate in Science of Health, 97853Universidade do Extremo Sul Catarinense, Criciúma, Brazil
| | - Ligia Milanez Venturini
- Laboratory of Experimental Phisiopatology, Program of postgraduate in Science of Health, 97853Universidade do Extremo Sul Catarinense, Criciúma, Brazil
| | - Naiara Alves
- Graduate Program of Biomedical Science, Herminio Ometto Foundation, Araras-SP, Brazil
| | | | | | | | - Paulo Emílio Feuser
- Laboratory of Experimental Phisiopatology, Program of postgraduate in Science of Health, 97853Universidade do Extremo Sul Catarinense, Criciúma, Brazil.,Department of Chemical Engineering and Food Engineering, 28117Federal University of Santa Catarina, Florianopolis, Brazil
| | - Anand Thirupathi
- Faculty of Sports Science, 47862Ningbo University, Ningbo, China
| | - Ricardo Andrez Machado-de-Ávila
- Laboratory of Experimental Phisiopatology, Program of postgraduate in Science of Health, 97853Universidade do Extremo Sul Catarinense, Criciúma, Brazil
| | - Paulo Cesar Lock Silveira
- Laboratory of Experimental Phisiopatology, Program of postgraduate in Science of Health, 97853Universidade do Extremo Sul Catarinense, Criciúma, Brazil
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Zuhayri H, Nikolaev VV, Lepekhina TB, Sandykova EA, Krivova NA, Kistenev YV. The In Vivo Quantitative Assessment of the Effectiveness of Low-Dose Photodynamic Therapy on Wound Healing Using Optical Coherence Tomography. Pharmaceutics 2022; 14:399. [PMID: 35214134 PMCID: PMC8877015 DOI: 10.3390/pharmaceutics14020399] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Revised: 01/30/2022] [Accepted: 02/09/2022] [Indexed: 12/10/2022] Open
Abstract
The effect of low-dose photodynamic therapy on in vivo wound healing was investigated using optical coherence tomography. This work aims to develop an approach to quantitative assessment of the wound's state during wound healing including the effect of low-dose photodynamic therapy using topical application of two different photosensitizers, 5-aminolevulinic acid and methylene blue, and two laser doses of 1 J/cm2 and 4 J/cm2. It was concluded that the laser dose of 4 J/cm2 was better compared to 1 J/cm2 and allowed the wound healing process to accelerate.
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Affiliation(s)
| | | | | | | | | | - Yury V. Kistenev
- Laboratory of Laser Molecular Imaging and Machine Learning, Tomsk State University, Lenin Ave. 36, 634050 Tomsk, Russia; (H.Z.); (V.V.N.); (T.B.L.); (E.A.S.); (N.A.K.)
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8
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Zuhayri H, Nikolaev VV, Knyazkova AI, Lepekhina TB, Krivova NA, Tuchin VV, Kistenev YV. In Vivo Quantification of the Effectiveness of Topical Low-Dose Photodynamic Therapy in Wound Healing Using Two-Photon Microscopy. Pharmaceutics 2022; 14:287. [PMID: 35214020 PMCID: PMC8877659 DOI: 10.3390/pharmaceutics14020287] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 01/16/2022] [Accepted: 01/21/2022] [Indexed: 12/20/2022] Open
Abstract
The effect of low-dose photodynamic therapy on in vivo wound healing with topical application of 5-aminolevulinic acid and methylene blue was investigated using an animal model for two laser radiation doses (1 and 4 J/cm2). A second-harmonic-generation-to-auto-fluorescence aging index of the dermis (SAAID) was analyzed by two-photon microscopy. SAAID measured at 60-80 μm depths was shown to be a suitable quantitative parameter to monitor wound healing. A comparison of SAAID in healthy and wound tissues during phototherapy showed that both light doses were effective for wound healing; however, healing was better at a dose of 4 J/cm2.
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Affiliation(s)
- Hala Zuhayri
- Laboratory of Laser Molecular Imaging and Machine Learning, Tomsk State University, 36 Lenin Av., 634050 Tomsk, Russia; (H.Z.); (V.V.N.); (A.I.K.); (T.B.L.); (N.A.K.); (V.V.T.)
| | - Viktor V. Nikolaev
- Laboratory of Laser Molecular Imaging and Machine Learning, Tomsk State University, 36 Lenin Av., 634050 Tomsk, Russia; (H.Z.); (V.V.N.); (A.I.K.); (T.B.L.); (N.A.K.); (V.V.T.)
| | - Anastasia I. Knyazkova
- Laboratory of Laser Molecular Imaging and Machine Learning, Tomsk State University, 36 Lenin Av., 634050 Tomsk, Russia; (H.Z.); (V.V.N.); (A.I.K.); (T.B.L.); (N.A.K.); (V.V.T.)
| | - Tatiana B. Lepekhina
- Laboratory of Laser Molecular Imaging and Machine Learning, Tomsk State University, 36 Lenin Av., 634050 Tomsk, Russia; (H.Z.); (V.V.N.); (A.I.K.); (T.B.L.); (N.A.K.); (V.V.T.)
| | - Natalya A. Krivova
- Laboratory of Laser Molecular Imaging and Machine Learning, Tomsk State University, 36 Lenin Av., 634050 Tomsk, Russia; (H.Z.); (V.V.N.); (A.I.K.); (T.B.L.); (N.A.K.); (V.V.T.)
| | - Valery V. Tuchin
- Laboratory of Laser Molecular Imaging and Machine Learning, Tomsk State University, 36 Lenin Av., 634050 Tomsk, Russia; (H.Z.); (V.V.N.); (A.I.K.); (T.B.L.); (N.A.K.); (V.V.T.)
- Science Medical Center, Saratov State University, 83 Astrakhanskaya Str., 410012 Saratov, Russia
| | - Yury V. Kistenev
- Laboratory of Laser Molecular Imaging and Machine Learning, Tomsk State University, 36 Lenin Av., 634050 Tomsk, Russia; (H.Z.); (V.V.N.); (A.I.K.); (T.B.L.); (N.A.K.); (V.V.T.)
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Feng J, Niu Y, Zhang Y, Zuo H, Wang S, Liu X. Ficus carica extract impregnated amphiphilic polymer scaffold for diabetic wound tissue regenerations. ARTIFICIAL CELLS, NANOMEDICINE, AND BIOTECHNOLOGY 2021; 49:219-229. [PMID: 33666536 DOI: 10.1080/21691401.2021.1890610] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Accepted: 01/24/2021] [Indexed: 12/25/2022]
Abstract
Diabetes associated injury healing and other tissue irregularities are viewed as a significant concern. The purpose of the study is to design the wound regeneration activity of Ficus carica extract (FFE) loaded amphiphilic polymeric scaffold of poly(xylitol-g-adipate-co-glutamide) (PXAG)-polyhydroxybutyrate (PHB) for potential diabetic affected wound regeneration. The PXAG copolymer was prepared by the condensation method, and the polymeric scaffolds of PXAG-PHB, PXAG-PHB/FFE were developed through the ultra-sonication process and magnetic stirrer processes. The chemical structure, crystalline nature, thermal stability, size, surface charge and surface morphology of PXAG-PHB and PXAG-PHB/FFE polymeric scaffolds were investigated. The PXAG-PHB/FFE exhibits 99.0% free radical scavenging activity which was determined by the DPPH method. The inhibition zones by the PXAG-PHB/FFE indicate it had a higher antibacterial activity with the Escherichia coli (gram-negative) and Staphylococcus aureus (gram-positive) pathogens. The PXAG, PXAG-PHB and PXAG-PHB/FFE polymeric scaffolds exhibited good viability against diabetic induced wound cells (WS1) in 100 μg/mL concentrations up to 72 h incubation. Since the synthesized PXAG-PHB/FFE polymeric scaffolds possess excellent thermal stability, bioactivity, biocompatibility and antioxidant activity along with potent antimicrobial activity, they play a potential role in diabetic wound tissue regenerations.
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Affiliation(s)
- Jia Feng
- Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
- Department of Endocrinology, Ninth Hospital of Xi'an, Xi'an, China
| | - Yu Niu
- Department of Endocrinology, Ninth Hospital of Xi'an, Xi'an, China
| | - Yi Zhang
- Department of Endocrinology, Ninth Hospital of Xi'an, Xi'an, China
| | - Hong Zuo
- Department of Endocrinology, Ninth Hospital of Xi'an, Xi'an, China
| | - Shujin Wang
- Department of Endocrinology, Ninth Hospital of Xi'an, Xi'an, China
| | - Xufeng Liu
- Department of Endocrinology, Ninth Hospital of Xi'an, Xi'an, China
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10
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Ginel PJ, Negrini J, Guerra R, Lucena R, Ruiz-Campillo MT, Mozos E. Effect of topical ozonated sunflower oil on second intention wound healing in turtles: a randomised experimental study. J Vet Sci 2021; 22:e27. [PMID: 33774942 PMCID: PMC8007438 DOI: 10.4142/jvs.2021.22.e27] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 01/19/2021] [Accepted: 02/04/2021] [Indexed: 12/12/2022] Open
Abstract
Background Ozone is an antimicrobial agent that in experimental and case-control studies has been found to exert a positive effect on wound healing. Wild and pet chelonians frequently present insidious wounds exhibiting secondary infections and/or delayed healing. Objectives Evaluate the effects of topical ozonated sunflower oil on second-intention healing of acute experimental skin wounds in red-eared sliders (Trachemys scripta elegans). Methods Randomised within-subject controlled study; Group 1 (n = 24) was used to assess clinical healing features; Group 2 (n = 12) was used for histological evaluation in which two sets of wounds were biopsied at 2, 7, 14, 21, 28 and 42 days over the course of the cicatrisation process. A single 6 mm diameter wound was made on each rear limb and topical ozonated (950 peroxide value) and non-ozonated sunflower oil were applied daily for one week on treated and contralateral control wounds, respectively. Results Mean wound size was significantly lower in the ozone-treated group at day 28 (p < 0.0001) with differences of clinical relevance (74.04% vs. 93.05% reduction of initial wound size). Histologically, the acute inflammatory reaction was enhanced in treated wounds, with significantly higher numbers of heterophils (p = 0.0016), lymphocytes (p < 0.001) and fibroblasts (p < 0.001). Conclusions Daily topical application of ozonated sunflower oil over the course of one week improved the healing of acute, full-thickness skin wounds in chelonians. This clinical outcome was histologically correlated with an enhanced acute inflammatory reaction, as well as the production and remodelling of collagen fibres.
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Affiliation(s)
- Pedro J Ginel
- Department of Animal Medicine & Surgery, Faculty of Veterinary Medicine, University of Córdoba, 14071 Córdoba, Spain.
| | - Joao Negrini
- Department of Anatomy & Comparative Pathology, Faculty of Veterinary Medicine, University of Córdoba, 14071 Córdoba, Spain.,Department of Veterinary Medicine, Federal University of Mato Grosso do Sul, 79074-460 Campo Grande, Brazil
| | | | - Rosario Lucena
- Department of Animal Medicine & Surgery, Faculty of Veterinary Medicine, University of Córdoba, 14071 Córdoba, Spain
| | - María T Ruiz-Campillo
- Department of Anatomy & Comparative Pathology, Faculty of Veterinary Medicine, University of Córdoba, 14071 Córdoba, Spain
| | - Elena Mozos
- Department of Anatomy & Comparative Pathology, Faculty of Veterinary Medicine, University of Córdoba, 14071 Córdoba, Spain
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11
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Abstract
OBJECTIVE The burden of the management of problematic skin wounds characterised by a compromised skin barrier is growing rapidly. Almost six million patients are affected in the US alone, with an estimated market of $25 billion annually. There is an urgent requirement for efficient mechanism-based treatments and more efficacious drug delivery systems. Novel strategies are needed for faster healing by reducing infection, moisturising the wound, stimulating the healing mechanisms, speeding up wound closure and reducing scar formation. METHODS A systematic review of qualitative studies was conducted on the recent perspectives of nanotechnology in burn wounds management. Pubmed, Scopus, EMBASE, CINAHL and PsychINFO databases were all systematically searched. Authors independently rated the reporting of the qualitative studies included. A comprehensive literature search was conducted covering various resources up to 2018-2019. Traditional techniques aim to simply cover the wound without playing any active role in wound healing. However, nanotechnology-based solutions are being used to create multipurpose biomaterials, not only for regeneration and repair, but also for on-demand delivery of specific molecules. The chronic nature and associated complications of nonhealing wounds have led to the emergence of nanotechnology-based therapies that aim at facilitating the healing process and ultimately repairing the injured tissue. CONCLUSION Nanotechnology-based therapy is in the forefront of next-generation therapy that is able to advance wound healing of hard-to-heal wounds. In this review, we will highlight the developed nanotechnology-based therapeutic agents and assess the viability and efficacy of each treatment. Herein we will explore the unmet needs and future directions of current technologies, while discussing promising strategies that can advance the wound-healing field.
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Affiliation(s)
- Ruan Na
- Orthopedics Department, Affiliated Tongji Hospital of Huazhong University of Science and Technology, Wuhan City, Hubei Province, 430030, China
| | - Tian Wei
- Department of Biomedical Engineering
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12
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Augustine G, Aarthy M, Thiagarajan H, Selvaraj S, Kamini NR, Shanmugam G, Ayyadurai N. Self-Assembly and Mechanical Properties of Engineered Protein Based Multifunctional Nanofiber for Accelerated Wound Healing. Adv Healthc Mater 2021; 10:e2001832. [PMID: 33480482 DOI: 10.1002/adhm.202001832] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 12/05/2020] [Indexed: 12/15/2022]
Abstract
The present work reports a new route for preparing tunable multifunctional biomaterials through the combination of synthetic biology and material chemistry. Genetically encoded catechol moiety is evolved in a nanofiber mat with defined surface and secondary reactive functional chemistry, which promotes self-assembly and wet adhesion property of the protein. The catechol moiety is further exploited for the controlled release of boric acid that provides a congenial cellular microenvironment for accelerated wound healing. The presence of 3,4-dihydroxyphenylalanine in the nanofiber mat act as a stimulus to trigger cell proliferation, migration, and vascularization to accelerate wound healing. Electron paramagnetic resonance, NMR, FTIR, and circular dichroism spectroscopy confirm the structural integrity, antioxidant property, and controlled release of boric acid. Fluorescent and scanning electron microscopy reveals the 3D architecture of nanofiber mat, which favors fibroblast growth, endothelial cell attachment, and tube formation, which are the desirable properties of a wound-healing material. Animal studies in the murine wound healing model assert that the multifunctional biomaterial significantly improve re-epithelialization and accelerate wound closure.
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Affiliation(s)
- George Augustine
- Department of Biochemistry and Biotechnology Council of Scientific and Industrial Research (CSIR)—Central Leather Research Institute (CLRI) Chennai 600020 India
| | - Mayilvahanan Aarthy
- Department of Biochemistry and Biotechnology Council of Scientific and Industrial Research (CSIR)—Central Leather Research Institute (CLRI) Chennai 600020 India
| | - Hemalatha Thiagarajan
- Department of Biochemistry and Biotechnology Council of Scientific and Industrial Research (CSIR)—Central Leather Research Institute (CLRI) Chennai 600020 India
| | - Sowmya Selvaraj
- Inorganic and Physical Chemistry Laboratory Council of Scientific and Industrial Research—Central Leather Research Institute Adyar Chennai 600020 India
| | - Numbi Ramdu Kamini
- Department of Biochemistry and Biotechnology Council of Scientific and Industrial Research (CSIR)—Central Leather Research Institute (CLRI) Chennai 600020 India
| | - Ganesh Shanmugam
- Department of Organic and Bioorganic chemistry Council of Scientific and Industrial Research (CSIR)—Central Leather Research Institute (CLRI) Chennai 600020 India
| | - Niraikulam Ayyadurai
- Department of Biochemistry and Biotechnology Council of Scientific and Industrial Research (CSIR)—Central Leather Research Institute (CLRI) Chennai 600020 India
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13
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Shamloo A, Aghababaie Z, Afjoul H, Jami M, Bidgoli MR, Vossoughi M, Ramazani A, Kamyabhesari K. Fabrication and evaluation of chitosan/gelatin/PVA hydrogel incorporating honey for wound healing applications: An in vitro, in vivo study. Int J Pharm 2021; 592:120068. [PMID: 33188894 DOI: 10.1016/j.ijpharm.2020.120068] [Citation(s) in RCA: 75] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 11/03/2020] [Accepted: 11/06/2020] [Indexed: 12/14/2022]
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14
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Ihsan IS, Karsari D, Ertanti N, Dinaryanti A, Nugraha AP, Purwati P, Sudjarwo SA, Rantam FA. The distribution pattern and growth factor level in platelet-rich fibrin incorporated skin-derived mesenchymal stem cells: An in vitro study. Vet World 2020; 13:2097-2103. [PMID: 33281342 PMCID: PMC7704299 DOI: 10.14202/vetworld.2020.2097-2103] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 08/31/2020] [Indexed: 12/02/2022] Open
Abstract
Background and Aim: A skin wound in an animal must be cared for to prevent further health issues. Platelet-rich fibrin (PRF) and skin-derived mesenchymal stem cells (SMSCs) have been reported to have potential in increasing the rate of wound healing. This study aimed to analyze the distribution patterns and levels of platelet-derived growth factor (PDGF), insulin-like growth factor (IGF), vascular endothelial growth factor (VEGF), and transforming growth factor-β (TGF-β) in PRF incorporated with SMSCs. Materials and Methods: This study employed a true experiment (in vitro) design with post-test only performed in the control group alone. PRF and SMSCs were extracted from the blood and skin of 16 rabbits. SMSCs were characterized using immunocytochemistry to examine clusters of differentiation for 45, 73, 90, and 105. PRF was incorporated into the SMSCs and then divided into four groups (N=32/n=8): Group A (PRF only), Group B (PRF+SMSCs, incubated for 1 day), Group C (PRF+SMSCs, incubated for 3 days), and Group D (PRF+SMSCs, incubated for 5 days). Scanning electron microscopy was used to examine the distribution pattern of SMSCs between groups. The supernatant serum (Group A) and supernatant medium culture (Group D) were collected for the measurement of PDGF, IGF, VEGF, and TGF-β using an enzyme-linked immunosorbent assay sandwich kit. An unpaired t-test was conducted to analyze the differences between Groups A and D (p<0.01). Results: Group D had the most morphologically visible SMSCs attached to the PRF, with elongated and pseudopodia cells. There was a significant difference between the levels of growth factor in Groups A and D (p=0.0001; p<0.01). Conclusion: SMSCs were able to adhere to and distribute evenly on the surface of PRF after 5 days of incubation. The PRF incorporated SMSCs contained high levels of PDGF, IGF, VEGF, and TGF- β, which may prove to have potential in enhancing wound healing.
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Affiliation(s)
- Igo Syaiful Ihsan
- Master Student of Vaccinology and Immunotherapeutica, Veterinary Medicine Faculty, Airlangga University, Surabaya, Indonesia.,Stem Cell Research and Development Center, Airlangga University, Surabaya, Indonesia
| | - Deya Karsari
- Stem Cell Research and Development Center, Airlangga University, Surabaya, Indonesia
| | - Nora Ertanti
- Stem Cell Research and Development Center, Airlangga University, Surabaya, Indonesia
| | - Aristika Dinaryanti
- Stem Cell Research and Development Center, Airlangga University, Surabaya, Indonesia
| | - Alexander Patera Nugraha
- Doctoral Student of Medical Science, Faculty of Medicine, Airlangga University, Surabaya, Indonesia
| | - Purwati Purwati
- Stem Cell Research and Development Center, Airlangga University, Surabaya, Indonesia.,Department of Health, Vocational Faculty, Airlangga University, Surabaya, Indonesia
| | - Sri Agus Sudjarwo
- Department of Pharmacology, Veterinary Medicine Faculty, Airlangga University, Surabaya, Indonesia
| | - Fedik Abdul Rantam
- Stem Cell Research and Development Center, Airlangga University, Surabaya, Indonesia.,Department of Microbiology, Virology Laboratory, Veterinary Medicine Faculty, Airlangga University, Surabaya, Indonesia
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15
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Oryan A, Alemzadeh E, Eskandari MH. Kefir Accelerates Burn Wound Healing Through Inducing Fibroblast Cell Migration In Vitro and Modulating the Expression of IL-1ß, TGF-ß1, and bFGF Genes In Vivo. Probiotics Antimicrob Proteins 2020; 11:874-886. [PMID: 29948798 DOI: 10.1007/s12602-018-9435-6] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Kefir is a natural probiotic compound with a long history of health benefits which can improve wound healing. This study investigated the regeneration potential of kefir in vitro scratch assay and in vivo burn wound in rat model. Cytotoxicity of different concentrations of kefir was evaluated by colorimetric methylthiazoltetrazolium assay. A scratch wound experiment was performed to investigate the ability of kefir in reducing the gap of wounds in a dose-dependent manner, in vitro. The standardized kefir was incorporated into silver sulfadiazine (SSD) and applied on burn wounds in vivo, and was compared with the SSD and negative control groups after 7, 14, and 28 days of treatment. The wound sites were then removed for histopathological and morphometric analyses, assessment of interleukin-1β (IL-1β), transforming growth factor-β1 (TGF-β1), basic fibroblast growth factor (bFGF), dry weight, and hydroxyproline contents. Kefir enhanced proliferation and migration of human dermal fibroblast (HDF) cells and 12.50, 6.25, and 3.12 μL/mL concentrations showed better effects on the scratch assay. Kefir resulted in reduction of IL-1β and TGF-β1 expression at day 7 compared to the negative control. Kefir also reduced the expression of IL-1β at days 14 and 28 and stimulated bFGF at day 28. It significantly improved the dry matter and hydroxyproline contents in the burn wounds. Kefir also resulted in enhanced angiogenesis and elevated migration and proliferation of fibroblasts and improved fibrous connective tissue formation in the wound area. The morphometric results indicated significant global contraction values in the kefir-treated wounds compared to other groups. Taken together, the findings suggest that kefir has considerable ability to accelerate healing of the burn wounds. Therefore, kefir may be a possible option to improve the outcomes of severe burns.
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Affiliation(s)
- Ahmad Oryan
- Department of Pathology, School of Veterinary Medicine, Shiraz University, Shiraz, Iran.
| | - Esmat Alemzadeh
- Department of Biotechnology, School of Veterinary Medicine, Shiraz University, Shiraz, Iran
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16
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Rodríguez Díez C, González F, López I, Suárez L, Moraleda V, Rodríguez C. Pododermatitis in raptors admitted in a wildlife rehabilitation centre in central spain. Prev Vet Med 2019; 175:104875. [PMID: 31896502 DOI: 10.1016/j.prevetmed.2019.104875] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 12/18/2019] [Accepted: 12/18/2019] [Indexed: 10/25/2022]
Abstract
Pododermatitis is a chronic and progressive bacterial infectious disease of birds´ footpads, especially associated with captivity, which could represent an important problem in wildlife rehabilitation centres, delaying the release of the birds to the environment and harming their conservation. The objectives of the present study were i) to estimate the incidence rate of pododermatitis, ii) to analyse the influence of environmental, physiological, and pathological factors which may influence the onset of the infection in raptors after their admission to a rehabilitation centre, and iii) to follow up the evolution and macroscopic characteristics of the lesion. An observational retrospective study was carried out on clinical cases of raptors (n = 2004) admitted in a rehabilitation centre in central Spain from 2009 to 2015. The proportion of pododermatitis was 6.9%, with an incidence density of 6.8 cases/100 bird-years at risk. Our results showed that the disease was more likely to occur in birds staying longer (P < 0.001). According to Cox analysis, the variables 'raptor family' (P < 0.001) and 'age' (P = 0.002) may have significant effects on pododermatitis development. Raptors from the Falconidae and Strigidae families were less likely to develop pododermatitis than those from the Accipitridae family, with a hazard ratio (HR) of 0.31 and 0.13, respectively. Regarding age, fully feathered raptors had a three-fold higher risk of having pododermatitis than non-fully feathered birds. Survival analysis of time of pododermatitis development revealed significant differences associated with the variables 'raptor family' (P < 0.03); 'age' (P < 0.001) and 'cause of admission' (P = 0.001). Duration of the pathology (P < 0.05) and lesion location (P < 0.001) seemed to be phylogenetic dependent. Injuries were primarily located in the toes area or the whole footpad of birds belonging to the Accipitridae or Falconidae families, respectively (P = 0.003).
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Affiliation(s)
- Clara Rodríguez Díez
- Departmental Section of Pharmacology and Toxicology-Veterinary, Veterinary Faculty, Universidad Complutense De Madrid, Ciudad Universitaria, 28040, Madrid, Spain
| | - Fernando González
- GREFA (Grupo De Rehabilitación De La Fauna Autóctona y Su Hábitat), Ctra. Monte Del Pilar, s/n, 28220 Majadahonda, Madrid, Spain.
| | - Irene López
- GREFA (Grupo De Rehabilitación De La Fauna Autóctona y Su Hábitat), Ctra. Monte Del Pilar, s/n, 28220 Majadahonda, Madrid, Spain
| | - Laura Suárez
- GREFA (Grupo De Rehabilitación De La Fauna Autóctona y Su Hábitat), Ctra. Monte Del Pilar, s/n, 28220 Majadahonda, Madrid, Spain
| | - Virginia Moraleda
- GREFA (Grupo De Rehabilitación De La Fauna Autóctona y Su Hábitat), Ctra. Monte Del Pilar, s/n, 28220 Majadahonda, Madrid, Spain
| | - Casilda Rodríguez
- Departmental Section of Pharmacology and Toxicology-Veterinary, Veterinary Faculty, Universidad Complutense De Madrid, Ciudad Universitaria, 28040, Madrid, Spain
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Hippólito AG, Stanski G, Fernandes LL, de Abreu Sampaio AB, Rahal SC, Teixeira CR. Evaluation of Topical Medications, Lavage Solutions, and Laser Therapy for Treating Open Wounds Induced in Blue-fronted Amazon Parrots, Amazona Aestiva. J Exot Pet Med 2019. [DOI: 10.1053/j.jepm.2018.09.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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18
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Marume A, Matope G, Katsande S, Khoza S, Mutingwende I, Mduluza T, Munodawafa-Taderera T, Ndhlala AR. Wound Healing Properties of Selected Plants Used in Ethnoveterinary Medicine. Front Pharmacol 2017; 8:544. [PMID: 28932192 PMCID: PMC5592899 DOI: 10.3389/fphar.2017.00544] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Accepted: 08/04/2017] [Indexed: 11/13/2022] Open
Abstract
Plants have arrays of phytoconstituents that have wide ranging biological effects like antioxidant, anti-inflammatory and antimicrobial properties key in wound management. In vivo wound healing properties of ointments made of crude methanolic extracts (10% extract w/w in white soft paraffin) of three plant species, Cissus quadrangularis L. (whole aerial plant parts), Adenium multiflorum Klotzsch (whole aerial plant parts) and Erythrina abyssinica Lam. Ex DC. (leaves and bark) used in ethnoveterinary medicine were evaluated on BALB/c female mice based on wound area changes, regular observations, healing skin's percentage crude protein content and histological examinations. White soft paraffin and 3% oxytetracycline ointment were used as negative and positive controls, respectively. Wound area changes over a 15 day period for mice treated with C. quadrangularis and A. multiflorum extract ointments were comparable to those of the positive control (oxytetracycline ointment). Wounds managed with the same extract ointments exhibited high crude protein contents, similar to what was observed on animals treated with the positive control. Histological evaluations revealed that C. quadrangularis had superior wound healing properties with the wound area completely returning to normal skin structure by day 15 of the experiment. E. abyssinica leaf and bark extract ointments exhibited lower wound healing properties though the leaf extract exhibited some modest healing properties.
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Affiliation(s)
- Amos Marume
- Department of Paraclinical Veterinary Studies, Faculty of Veterinary Science, University of ZimbabweHarare, Zimbabwe.,Pharmacy Skills Training and Development Unit, EastEnd Medical Centre, Harare Institute of Public HealthHarare, Zimbabwe
| | - Gift Matope
- Department of Paraclinical Veterinary Studies, Faculty of Veterinary Science, University of ZimbabweHarare, Zimbabwe
| | - Simbarashe Katsande
- Department of Paraclinical Veterinary Studies, Faculty of Veterinary Science, University of ZimbabweHarare, Zimbabwe
| | - Star Khoza
- Department of Clinical Pharmacology, College of Health Sciences, University of ZimbabweHarare, Zimbabwe
| | - Isaac Mutingwende
- Pharmacy Skills Training and Development Unit, EastEnd Medical Centre, Harare Institute of Public HealthHarare, Zimbabwe.,Pharmaceutical Chemistry Department, School of Pharmacy, College of Health Sciences, University of ZimbabweHarare, Zimbabwe
| | - Takafira Mduluza
- Department of Biochemistry, Faculty of Science, University of ZimbabweHarare, Zimbabwe.,Infection Prevention and Control, School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-NatalDurban, South Africa
| | - Tafadzwa Munodawafa-Taderera
- Pharmaceutical Chemistry Department, School of Pharmacy, College of Health Sciences, University of ZimbabweHarare, Zimbabwe
| | - Ashwell R Ndhlala
- Vegetable and Ornamental Plants, Agricultural Research CouncilPretoria, South Africa
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