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Ahmed SF, Bakr MA, Rasmy AH. Vitamin E ameliorates oral mucositis in gamma-irradiated rats (an in vivo study). BMC Oral Health 2023; 23:697. [PMID: 37759230 PMCID: PMC10537122 DOI: 10.1186/s12903-023-03408-x] [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: 05/31/2023] [Accepted: 09/12/2023] [Indexed: 09/29/2023] Open
Abstract
BACKGROUND Radiation therapy is the primary treatment for neck and head cancer patients; however, it causes the development of oral mucositis accompanied by tissue structure destruction and functional alteration. This study was conducted to evaluate the effect of different doses of vitamin E as a treatment for radiationinduced oral mucositis in rat model. METHODS 35 male albino rats were randomly divided into five groups: control, untreated radiation mucositis (single dose of 20 Gy), treated radiation mucositis; radiation (single dose of 20 Gy) then vitamin E at doses of 300, 360 and 500 mg/Kg for seven days started 24 h after irradiation. Body weight and food intake were evaluated for each rat. The mucositis score was assessed every day. Rats were sacrificed once at the end of the experiment, and tongue specimens were stained with hematoxylin and eosin, anti P53 and anti Ki67 antibodies. RESULTS Results indicated more food intake and less weight reduction in vitamin E treated groups and the contrary for gamma-irradiated group. Additionally, vitamin E delayed the onset and decreased the severity and duration of mucositis. It also restored the histological structure of lingual tongue papillae. Vitamin E treated groups showed a significant higher Ki67 and lower P53 expression as compared to untreated radiation group. The overall improvement increased as vitamin E dose increased. Finally, the amelioration can be attributed to the decreased apoptosis and increased proliferation of cells. CONCLUSIONS Vitamin E especially at dose of 500 mg/Kg could be an effective treatment for radiation-induced oral mucositis.
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Affiliation(s)
- Salwa Farid Ahmed
- Health Radiation Research Dept, National Center for Radiation Research and Technology, Egyptian Atomic Energy Authority, Cairo, Egypt
| | - Mostafa A Bakr
- Health Radiation Research Dept, National Center for Radiation Research and Technology, Egyptian Atomic Energy Authority, Cairo, Egypt.
| | - Amr H Rasmy
- Health Radiation Research Dept, National Center for Radiation Research and Technology, Egyptian Atomic Energy Authority, Cairo, Egypt
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Preparation and Evaluation of Rebamipide Colloidal Nanoparticles Obtained by Cogrinding in Ternary Ground Mixtures. COLLOIDS AND INTERFACES 2020. [DOI: 10.3390/colloids4040043] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Aphthous stomatitis is one of the side effects of chemotherapy and radiotherapy in cancer treatment. Rebamipide (RB) mouthwash for stomatitis acts as a radical scavenger. However, RB is poorly soluble in water, which leads to aggregation and precipitation of the dispersoid. The particle size of the drug needs to be less than 100 nm for the particles to reach the mucus layer in the oral cavity. In this study, we attempted to prepare nanoparticles of RB by cogrinding with polyvinylpyrrolidone (PVP) or hydroxypropyl cellulose (HPC) and sodium dodecyl sulfate (SDS) using a mixer ball mill, and evaluated the physicochemical properties of RB nanoparticles, the stability of dispersion in water, and permeation of the mucus layer in vitro. By cogrinding, the particle size decreased to around 110 nm, and powder X-ray diffraction (PXRD) of the particles showed totally broad halo patterns, which suggested a decreased crystalline region. Furthermore, the solubility of RB nanoparticles increased by approximately fourfold compared with RB crystals, and the water dispersibility and permeation of the mucus layer were improved. The results suggest that in a ternary ground mixture of RB, PVP or HPC, and SDS, the RB nanoparticles obtained can be applied as a formulation for stomatitis.
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Fernandez ML, Stupar D, Croll T, Leavesley D, Upton Z. Xanthine Oxidoreductase: A Novel Therapeutic Target for the Treatment of Chronic Wounds? Adv Wound Care (New Rochelle) 2018; 7:95-104. [PMID: 29644146 DOI: 10.1089/wound.2016.0724] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Accepted: 03/06/2017] [Indexed: 12/16/2022] Open
Abstract
Significance: Chronic wounds are a major burden to patients and to healthcare systems worldwide. These wounds are difficult to heal and treatment is often lengthy and expensive. This has led to research efforts focussed on the wound environment attempting to understand the underlying pathological mechanisms of impaired wound healing. While some of this research has translated to advancements in wound therapies and implementation of new treatment options, chronic wounds remain a significant challenge to treat. Thus, identification of effective, low-cost, advanced wound therapies that enhance healing rates of these problematic wounds is still essential. Recent Advances and Critical Issues: Xanthine oxidoreductase (XOR), a molybdoflavin enzyme, is emerging as an important source of reactive oxygen species (ROS) in various pathologies, including diabetes and chronic wounds. XOR has recently been shown to be upregulated in chronic wounds, stimulating the overproduction of ROS during dysfunctional wound healing. XOR-induced ROS can amplify and potentiate inflammation in the wound environment further delaying wound closure. Future Directions: The detrimental role of XOR in impaired healing indicates it may be a therapeutic target. Targeted inhibition of XOR has been shown to reduce the expression and activity of this enzyme in diabetic wound models. In turn, this resulted in a significant decrease in ROS levels in the wound environment and improved wound healing. Therefore, repurposing existing XOR inhibitors that are approved for human use may be able to restore homeostasis at the wound site and enable damaged tissue to return to normal healing.
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Affiliation(s)
- Melissa L. Fernandez
- Institute of Medical Biology, Agency for Science, Technology and Research, Singapore, Singapore
| | - Dario Stupar
- Institute of Medical Biology, Agency for Science, Technology and Research, Singapore, Singapore
| | - Tristan Croll
- Department of Haematology, Cambridge Institute for Medical Research, University of Cambridge, Cambridge, United Kingdom
| | - David Leavesley
- Institute of Medical Biology, Agency for Science, Technology and Research, Singapore, Singapore
- Faculty of Health, School of Biomedical Sciences, Queensland University of Technology, Brisbane, Australia
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore
| | - Zee Upton
- Institute of Medical Biology, Agency for Science, Technology and Research, Singapore, Singapore
- Faculty of Health, School of Biomedical Sciences, Queensland University of Technology, Brisbane, Australia
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore
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Maria OM, Eliopoulos N, Muanza T. Radiation-Induced Oral Mucositis. Front Oncol 2017; 7:89. [PMID: 28589080 PMCID: PMC5439125 DOI: 10.3389/fonc.2017.00089] [Citation(s) in RCA: 205] [Impact Index Per Article: 29.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Accepted: 04/21/2017] [Indexed: 01/11/2023] Open
Abstract
Radiation-induced oral mucositis (RIOM) is a major dose-limiting toxicity in head and neck cancer patients. It is a normal tissue injury caused by radiation/radiotherapy (RT), which has marked adverse effects on patient quality of life and cancer therapy continuity. It is a challenge for radiation oncologists since it leads to cancer therapy interruption, poor local tumor control, and changes in dose fractionation. RIOM occurs in 100% of altered fractionation radiotherapy head and neck cancer patients. In the United Sates, its economic cost was estimated to reach 17,000.00 USD per patient with head and neck cancers. This review will discuss RIOM definition, epidemiology, impact and side effects, pathogenesis, scoring scales, diagnosis, differential diagnosis, prevention, and treatment.
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Affiliation(s)
- Osama Muhammad Maria
- Faculty of Medicine, Experimental Medicine Department, McGill University, Montreal, QC, Canada
- Radiation Oncology Department, Jewish General Hospital, McGill University, Montreal, QC, Canada
- Lady Davis Institute for Medical Research, Jewish General Hospital, McGill University, Montreal, QC, Canada
| | - Nicoletta Eliopoulos
- Lady Davis Institute for Medical Research, Jewish General Hospital, McGill University, Montreal, QC, Canada
- Faculty of Medicine, Surgery Department, McGill University, Montreal, QC, Canada
| | - Thierry Muanza
- Faculty of Medicine, Experimental Medicine Department, McGill University, Montreal, QC, Canada
- Radiation Oncology Department, Jewish General Hospital, McGill University, Montreal, QC, Canada
- Lady Davis Institute for Medical Research, Jewish General Hospital, McGill University, Montreal, QC, Canada
- Oncology Department, McGill University, Montreal, QC, Canada
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Simulation of the solid state and the first and second hydration shell of the xanthine oxidase inhibitor allopurinol: Structures obtained using DFT and MP2 methods. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2016.01.067] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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De Sanctis V, Bossi P, Sanguineti G, Trippa F, Ferrari D, Bacigalupo A, Ripamonti CI, Buglione M, Pergolizzi S, Langendjik JA, Murphy B, Raber-Durlacher J, Russi EG, Lalla RV. Mucositis in head and neck cancer patients treated with radiotherapy and systemic therapies: Literature review and consensus statements. Crit Rev Oncol Hematol 2016; 100:147-66. [DOI: 10.1016/j.critrevonc.2016.01.010] [Citation(s) in RCA: 90] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Revised: 11/30/2015] [Accepted: 01/14/2016] [Indexed: 12/27/2022] Open
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Jin IG, Kim JH, Wu HG, Hwang SJ. Effect of mesenchymal stem cells and platelet-derived growth factor on the healing of radiation induced ulcer in rats. Tissue Eng Regen Med 2016; 13:78-90. [PMID: 30603388 DOI: 10.1007/s13770-015-0055-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2015] [Revised: 07/26/2015] [Accepted: 08/24/2015] [Indexed: 01/05/2023] Open
Abstract
Radiation-induced skin ulceration is a frequent complication of radiation therapy. This study investigated the effects of rat mesenchymal stem cells (rMSCs) and platelet-derived growth factor (PDGF) on the healing of radiation-induced soft tissue injury. Sprague-Dawley rats (n=17) were irradiated on the right and left buttocks with a single dose of 50 Gy. The right buttocks were administered with phosphatebuffered solution as a control. The left buttocks were administered with either rMSCs (2×106 cells), PDGF (8 µg), or PDGF combined with rMSCs. Administration was done at three weeks after irradiation. Wound healing was analyzed by calculating the percentage of residual ulcerated skin area compared to the total irradiated area during the five week healing period after administration. Modified skin scores were also assessed. Finally, skin lesions were histologically evaluated. More than 40% of the irradiated skin area within the irradiated zone underwent ulceration within 16 days postirradiation, with peak ulceration exceeding 50% around three weeks post-irradiation. Administration of rMSCs or PDGF alone did not confer any significant healing effect. The combined rMSCs+PDGF treatment significantly reduced the wound size compared with the nontreated control up to two weeks postinjection. Regarding the histological examination, lesions administered with PDGF (either alone or mixed with rMSCs) resulted in a greater deposition of highly organized collagen fibers throughout the dermis layer, compared with the control. In conclusion, the combined administration of rMSCs and PDGF efficiently enhanced the healing of radiation-induced skin ulceration.
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Affiliation(s)
- Im Geon Jin
- 1Department of Oral & Maxillofacial Surgery, School of Dentistry, Brain Korea 21 Plus, Dental Research Institute, Seoul National University, Seoul, Korea
| | - Jin Ho Kim
- 2Department of Radiation Oncology, Seoul National University Hospital, Seoul, Korea
| | - Hong-Gyun Wu
- 2Department of Radiation Oncology, Seoul National University Hospital, Seoul, Korea
| | - Soon Jung Hwang
- 1Department of Oral & Maxillofacial Surgery, School of Dentistry, Brain Korea 21 Plus, Dental Research Institute, Seoul National University, Seoul, Korea
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Nakajima N, Watanabe S, Kiyoi T, Tanaka A, Suemaru K, Araki H. Evaluation of edaravone against radiation-induced oral mucositis in mice. J Pharmacol Sci 2015; 127:339-43. [DOI: 10.1016/j.jphs.2015.02.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2014] [Revised: 01/28/2015] [Accepted: 02/02/2015] [Indexed: 01/22/2023] Open
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Nakashima T, Uematsu N, Shibamori M, Sakurai K, Ishida T. Establishment of an X-ray Irradiation-Induced Glossitis Model in Rats: Biphasic Elevation of Proinflammatory Cytokines and Chemokines. J Pharmacol Exp Ther 2013; 347:660-8. [DOI: 10.1124/jpet.113.208405] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
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Wang XJ, Lin S, Kang HF, Dai ZJ, Bai MH, Ma XL, Ma XB, Liu MJ, Liu XX, Wang BF. The effect of RHIZOMA COPTIDIS and COPTIS CHINENSIS aqueous extract on radiation-induced skin injury in a rat model. Altern Ther Health Med 2013; 13:105. [PMID: 23675786 PMCID: PMC3694038 DOI: 10.1186/1472-6882-13-105] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2013] [Accepted: 05/09/2013] [Indexed: 11/10/2022]
Abstract
BACKGROUND Radiation-induced skin injury is a common complication of radiotherapy. The RHIZOMA COPTIDIS and COPTIS CHINENSIS aqueous extract (RCE) can ameliorate radiation-induced skin injury in our clinical observation. But, the protective mechanism of RHIZOMA COPTIDIS and COPTIS CHINENSIS in radiation-induced skin injury remains unclear. METHODS In this experiment, we developed a radiation-induced skin injury rat model to study the mechanism. The animals were randomly divided into control group, treatment group, radiation group, and treatment and radiation group. 5 rats in each group were separately executed on 2 d and 49 d post-radiation. The semi-quantitative skin injury score was used to measure skin reactions by unblinded observers, and hematoxylin and eosin staining was used to evaluate the damage areas by irradiation. The MDA content, SOD activity of skin and serum were measured to detect the oxidative stress. RESULTS Acute skin reactions were caused by a single dose of 45 Gy of β-ray irradiation, and the skin injury could be found in all rats receiving irradiation based on the observation of HE staining of skin at different time-points, while RCE could significantly ameliorate those changes. The MDA content in serum and skin of control rats was 4.13±0.12 mmol/ml and 4.95±0.35 mmol/mgprot on 2 d post-radiation. The rats receiving radiation showed an increased content of MDA (5.54±0.21 mmol/ml and 7.10±0.32 mmol/mgprot), while it was 4.57±0.21 mmol/ml and 5.95±0.24 mmol/mgprot after treated with RCE (p<0.05). Similar changes of the MDA content could be seen on 49 d post-radiation. However, the SOD activity of rats receiving radiation decreased compared with control group on both time-points, which was inhibited by RCE (p<0.05). Meanwhile, no valuable changes could be found between control group and treatment group on 2 d and 49 d. CONCLUSIONS Our study provides evidences for the radioprotective role of RCE against radiation-induced skin damage in rats by modulating oxidative stress in skin, which may be a useful therapy for radiation-induced skin injury.
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Tomoda K, Asahiyama M, Ohtsuki E, Nakajima T, Terada H, Kanebako M, Inagi T, Makino K. Preparation and properties of carrageenan microspheres containing allopurinol and local anesthetic agents for the treatment of oral mucositis. Colloids Surf B Biointerfaces 2009; 71:27-35. [DOI: 10.1016/j.colsurfb.2009.01.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2008] [Revised: 12/31/2008] [Accepted: 01/01/2009] [Indexed: 10/21/2022]
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Ngeow WC, Chai WL, Zain RB. Management of radiation therapy-induced mucositis in head and neck cancer patients. Part I: Clinical significance, pathophysiology and prevention. Oncol Rev 2008. [DOI: 10.1007/s12156-008-0064-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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