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Jaberi R, Babaloui S, Siavashpour Z, Moshtaghi M, Shirazi A, Joya M, Gholami MH, Jafari S. 3D in vivo dosimetry of HDR gynecological brachytherapy using micro silica bead TLDs. J Appl Clin Med Phys 2022; 23:e13729. [PMID: 35946855 PMCID: PMC9512342 DOI: 10.1002/acm2.13729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 06/30/2022] [Accepted: 07/01/2022] [Indexed: 11/26/2022] Open
Abstract
Purpose This study aimed to evaluate the feasibility of defining an in vivo dosimetry (IVD) protocol as a patient‐specific quality assurance (PSQA) using the bead thermoluminescent dosimeters (TLDs) for point and 3D IVD during brachytherapy (BT) of gynecological (GYN) cancer using 60Co high‐dose‐rate (HDR) source. Methods The 3D in vivo absorbed dose verification within the rectum and bladder as organs‐at‐risk was performed by bead TLDs for 30 GYN cancer patients. For rectal wall dosimetry, 80 TLDs were placed in axial arrangements around a rectal tube covered with a layer of gel. Ten beads were placed inside the Foley catheter to get the bladder‐absorbed dose. Beads TLDs were localized and defined as control points in the treatment planning system (TPS) using CT images of the patients. Patients were planned and treated using the routine BT protocol. The experimentally obtained absorbed dose map of the rectal wall and the point dose of the bladder were compared to the TPSs predicted absorbed dose at these control points. Results Relative difference between TPS and TLDs results were −8.3% ± 19.5% and −7.2% ± 14.6% (1SD) for rectum‐ and bladder‐absorbed dose, respectively. Gamma analysis was used to compare the calculated with the measured absorbed dose maps. Mean gamma passing rates of 84.1%, 90.8%, and 92.5% using the criteria of 3%/2 mm, 3%/3 mm, and 4%/2 mm were obtained, respectively. Eventually, a “considering level” of at least 85% as pass rate with 4%/2‐mm criteria was recommended. Conclusions A 3D IVD protocol employing bead TLDs was presented to measure absorbed doses delivered to the rectum and bladder during GYN HDR‐BT as a reliable PSQA method. 3D rectal absorbed dose measurements were performed. Differences between experimentally measured and planned absorbed dose maps were presented in the form of a gamma index, which may be used as a warning for corrective action.
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Affiliation(s)
- Ramin Jaberi
- Radiation Oncology Department, Yas Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran.,Department of Physics, University of Surrey, Guildford, UK
| | - Somayyeh Babaloui
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Zahra Siavashpour
- Radiotherapy Oncology Department, Shohada-e-Tajrish Educational Hospital, Medical School, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Maryam Moshtaghi
- Radiation Oncology Department, Yas Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran
| | - Alireza Shirazi
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Musa Joya
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran.,Radiology Department, Kabul University of Medical Sciences, Afghanistan
| | - Mohammad Hadi Gholami
- Department of Medical Radiation Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran.,Mahdieh Radiotherapy Oncology Center, Hamedan, Iran
| | - Shakardokht Jafari
- Department of Physics, University of Surrey, Guildford, UK.,Medical Physics Dept., Portsmouth Hospitals University NHS Trust, Portsmouth, UK.,Medical Research Centre, Kateb University, Kabul, Afghanistan
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Fooladi M, Shirazi A, Sheikhzadeh P, Amirrashedi M, Ghahramani F, Cheki M, Khoobi M. Investigating the attenuating effect of telmisartan against radiation-induced intestinal injury using 18F-FDG micro-PET imaging. Int J Radiat Biol 2022; 99:446-458. [PMID: 35930426 DOI: 10.1080/09553002.2022.2110295] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Abstract
BACKGROUND AND OBJECTIVE This study was aimed to investigate the ability of 18F-Fluro-deoxy-glucose (18F-FDG)-based micro-positron emission tomography (microPET) imaging to evaluate the efficacy of telmisartan, a highly selective angiotensin II receptor antagonist (ARA), in intestinal tissue recovery process after in vivo irradiation. METHODS Male Balb/c mice were randomly divided into four groups of control, telmisartan, irradiation, and telmisartan + irradiation. A solution of telmisartan in phosphate-buffered saline (PBS) was administered orally at 12 mg/kg body weight for seven consecutive days prior to whole body exposing to a single sub-lethal dose of 5 Gy X-rays. The mice were imaged using 18F-FDG microPET at 9 and 30 days post-irradiation. The 18F-FDG uptake in jejunum was determined according to the mean standardized uptake value (SUVmean) index. Tissues were also processed in similar time points for histological analysis. RESULTS The 18F-FDG microPET imaging confirmed the efficacy of telmisartan as a potent attenuating agent for ionizing radiation-induced injury of intestine in mice model. The results were also in line with the histological analysis indicating that pretreatment with telmisartan reduced damage to the villi, crypts, and intestinal mucosa compared with irradiated and non-treated group from day 9 to 30 after irradiation. CONCLUSION The results revealed that 18F-FDG microPET imaging could be a good candidate to replace time-consuming and invasive biological techniques for screening of radioprotective agents. These findings were also confirmed by histological examinations which indicated that telmisartan can effectively attenuates radiation injury caused by ionizing-irradiation.
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Affiliation(s)
- Masoomeh Fooladi
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Alireza Shirazi
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Peyman Sheikhzadeh
- Department of Nuclear Medicine, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahsa Amirrashedi
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran.,Research Center for Molecular and Cellular Imaging, Tehran University of Medical Sciences, Tehran, Iran
| | - Fatemeh Ghahramani
- Radiotherapy-Oncology Center, Yas Hospital, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohsen Cheki
- Department of Medical Imaging and Radiation Sciences, Faculty of Paramedicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mehdi Khoobi
- Biomaterials Group, Pharmaceutical Sciences Research Center, The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran, Iran.,Department of Radiopharmacy, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
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Fooladi M, Cheki M, Shirazi A, Sheikhzadeh P, Amirrashedi M, Ghahramani F, Khoobi M. Histopathological Evaluation of Protective Effect of Telmisartan against Radiation-Induced Bone Marrow Injury. J Biomed Phys Eng 2022; 12:277-284. [PMID: 35698535 PMCID: PMC9175127 DOI: 10.31661/jbpe.v0i0.2012-1243] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Accepted: 01/20/2021] [Indexed: 06/15/2023]
Abstract
BACKGROUND Radiation-induced hematopoietic suppression and myelotoxicity can occur due to the nuclear accidents, occupational irradiation and therapeutic interventions. Bone marrow dysfunction has always been one of the most important causes of morbidity and mortality after ionizing irradiation. OBJECTIVE This study aims to investigate the protective effect of telmisartan against radiation-induced bone marrow injuries in a Balb/c mouse model. MATERIAL AND METHODS In this experimental study, male Balb/c mice were divided into four groups as follow: group 1: mice received phosphate buffered saline (PBS) without irradiation, group 2: mice received a solution of telmisartan in PBS without irradiation, group 3: mice received PBS with irradiation, and group 4: mice received a solution of telmisartan in PBS with irradiation. A solution of telmisartan was prepared and administered orally at 12 mg/kg body weight for seven consecutive days prior to whole body exposing to a single sub-lethal dose of 5 Gy X-rays. Protection of bone marrow against radiation induced damage was investigated by Hematoxylin-Eosin (HE) staining assay at 3, 9, 15 and 30 days after irradiation. RESULTS Histopathological analysis indicated that administration of telmisartan reduced X-radiation-induced damage and improved bone marrow histology. The number of different cell types in bone marrow, including polymorphonuclear /mononuclear cells and megakaryocytes significantly increased in telmisartan treated group compared to the only irradiated group at all-time points. CONCLUSION The results of the present study demonstrated an efficient radioprotective effect of telmisartan in mouse bone marrow against sub-lethal X-irradiation.
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Affiliation(s)
- Masoomeh Fooladi
- PhD Candidate, Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohsen Cheki
- PhD, Department of Medical Imaging and Radiation Sciences, Faculty of Paramedicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Alireza Shirazi
- PhD Candidate, Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Peyman Sheikhzadeh
- PhD, Department of Nuclear Medicine, Imam khomeini Hospital complex, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahsa Amirrashedi
- PhD Candidate, Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
- PhD Candidate, Research Center for Molecular and Cellular Imaging, Tehran University of Medical Sciences, Tehran, Iran
| | - Fatemeh Ghahramani
- MSc, Radiotherapy-Oncology Center, Yas Hospital, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mehdi Khoobi
- PhD, Biomaterials Group, Pharmaceutical Sciences Research Center, The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran, Iran
- PhD, Department of Medicinal Chemistry, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
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Taghavi Bahreghani M, Geraily G, Alizadeh S, Najafi M, Shirazi A. Apigenin Enhanced Radiation-Induced Apoptosis/Necrosis by Sensitization of LNCaP Prostate Cancer Cells to 6 MV Photon Beams. Cell J 2021; 23:730-735. [PMID: 34979061 PMCID: PMC8753104 DOI: 10.22074/cellj.2021.7610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Accepted: 07/21/2020] [Indexed: 11/25/2022]
Abstract
OBJECTIVE Whereas prostate cancer (PrCa) may be unresponsive or moderately responsive to radiation therapy (RT)- most common modality for treatment of PrCa- patients must receive a high dose of RT In order to achieve appropriate tumour control. However, this increase in radiation dose may lead to severe adverse effects in normal tissues. Sensitization of PrCa to radiation provides an alternate approach to improve the therapeutic efficacy of RT. This study aims to assess the radiosensitisation effect of apigenin (Api) on a prostate cancer cell line (LNCaP). MATERIALS AND METHODS In this experimental study, LNCaP cells were treated with 0-80 μM Api to investigate its effect on LNCaP cell viability and determine its half-maximal inhibitory concentration (IC50). Next, the cells were divided into four groups: i. Control, ii. Cells treated with the IC50 concentration of Api, iii. Cells treated with 2 Gy ionizing radiation (IR), and cells co-treated with Api and IR. The 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay, real-time polymerase chain reaction (PCR), and an Annexin V-FITC/PI assay were performed to assess cell survival, Bax and Bcl-2 expressions, and presence of apoptosis and necrosis. RESULTS Api inhibited cell survival in a dose-dependent, but not time-dependent manner. Cells treated with Api had increased amounts of early apoptosis, late apoptosis, and secondary necrosis compared to the control group. This group also had decreased Bcl-2 gene expression and up-regulated Bax gene expression. Co-treatment with Api and IR significantly inhibited cell survival, and increased early apoptosis, late apoptosis and secondary necrosis compared to the other groups. There was a significant decrease in Bcl-2 gene expression along with up-regulation of Bax gene expression, and Bax/Bcl-2 ratio changes that favoured apoptosis. CONCLUSION Api inhibited PrCa cell survival and induced apoptosis as a single agent. In addition, Api significantly sensitized the LNCaP cells to IR and enhanced radiation-induced apoptosis.
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Affiliation(s)
- Morteza Taghavi Bahreghani
- Department of Medical Physics and Biomedical Engineering, Tehran University of Medical Sciences, Tehran, Iran
| | - Ghazale Geraily
- Department of Medical Physics and Biomedical Engineering, Tehran University of Medical Sciences, Tehran, Iran,P.O.Box: 13599471Department of Medical Physics and Biomedical EngineeringTehran University of Medical
SciencesTehranIran
| | - Shaban Alizadeh
- Department of Haematology, School of Allied Medical Sciences, Tehran University of Medical Sciences, Tehran, Iran
| | - Masoud Najafi
- Department of Radiology and Nuclear Medicine, School of Allied Medical Sciences Kermanshah University of Medical Sciences,
Kermanshah, Iran
| | - Alireza Shirazi
- Department of Medical Physics and Biomedical Engineering, Tehran University of Medical Sciences, Tehran, Iran
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Esmaely F, Mahmoudzadeh A, Cheki M, Shirazi A. The radioprotective effect of melatonin against radiation-induced DNA double-strand breaks in radiology. J Cancer Res Ther 2021; 16:S59-S63. [PMID: 33380653 DOI: 10.4103/jcrt.jcrt_370_18] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Objective The objective of this study is to observe the effect of 100-mg melatonin in reducing the levels of double-strand breaks (DSB) induced by 10 mGy and 100 mGy X-ray in peripheral lymphocyte applying H2AX immunofluorescence microscopy and comparing the different efficacies of melatonin ingestion 1 and 2 h before irradiation. Materials and Methods Informed consent was obtained from five healthy males, nonathlete, and nonsmoking human volunteers aged between 25 and 35 years. Each volunteer was given a single oral dose of 100 mg melatonin at 9 a.m. Blood samples were collected in vacutainer tubes (without any preservative to separate the serum, and with heparin as an anticoagulant for separating leukocytes for in vitro exposure to gamma radiation) 5-10 min before then 1 and 2 h after melatonin ingestion. Afterward, each sample was subdivided into nonirradiated and irradiated groups (10 mGy and 100 mGy). After irradiation, lymphocytes of samples were separated. The isolated lymphocytes in each group were permeabilized for DSB assessment and stained against the phosphorylated histone variant γH2AX. Results Melatonin ingestion 1 and 2 h before irradiation caused a significant reduction in γH2AX foci. Results further indicate that the change in ingestion of melatonin from 1 to 2 h before exposure had no significant effect. In addition, melatonin administration showed no side effects. Conclusion The present study showed that melatonin will prove effective in radioprotection against ionizing radiation (IR)-induced DNA damage in human lymphocytes. Our results suggest ingestion of 100-mg melatonin by patients before exposure to IR in radiology.
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Affiliation(s)
- Farid Esmaely
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences and Health Services, Tehran, Iran
| | - Aziz Mahmoudzadeh
- Department of Biosciences and Biotechnology, Malek-Ashtar University of Technology, Tehran, Iran
| | - Mohsen Cheki
- Department of Radiologic Technology, Faculty of Paramedicine, Ahvaz Jundishapur University of Medical Sciences; Toxicology Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Alireza Shirazi
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences and Health Services, Tehran, Iran
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Aryafar T, Amini P, Rezapoor S, Shabeeb D, Eleojo Musa A, Najafi M, Shirazi A. Modulation of Radiation-Induced NADPH Oxidases in Rat's Heart Tissues by Melatonin. J Biomed Phys Eng 2021; 11:465-472. [PMID: 34458194 PMCID: PMC8385219 DOI: 10.31661/jbpe.v0i0.1094] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2018] [Accepted: 02/18/2019] [Indexed: 12/13/2022]
Abstract
Background Experimental studies have shown that infiltration of inflammatory cells as well as upregulation of some cytokines play a central role in the development of late effects of ionizing radiation in heart tissues. Evidences have shown that an increased level of TGF-β has a direct correlation with late effects of exposure to ionizing radiation such as chronic oxidative stress and fibrosis. Recent studies have shown that TGF-β, through upregulation of pro-oxidant enzymes such as NOX2 and NOX4, promotes continuous ROS production and accumulation of fibrosis. Objective In present study, we aimed to evaluate the expression of NOX2 and NOX4 signaling pathways as well as possible modulatory effects of melatonin on the expression of these genes. Material and Methods In this experimental study, four groups of 20 rats (5 in each) were used as follows; G1: control; G2: melatonin; G3: radiation; G4: radiation + melatonin. 100 mg/kg of melatonin was administrated before irradiation of heart tissues with 15 Gy gamma rays. 10 weeks after irradiation, heart tissues were collected for real-time Polymerase chain reaction (PCR). Results Results showed a significant increase in the expression of TGF-β, Smad2, NF-kB, NOX2 and NOX4. The upregulation of NOX2 was more obvious by 20-fold compared to other genes. Except for TGF-β, melatonin could attenuate the expression of other genes. Conclusion This study indicated that exposure of rat's heart tissues to radiation leads to upregulation of TGF-β-NOX4 and TGF-β-NOX2 pathways. Melatonin, through modulation of these genes, may be able to alleviate radiation-induced chronic oxidative stress and subsequent consequences.
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Affiliation(s)
- Tayebeh Aryafar
- PhD, Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Peyman Amini
- MSc, Department of Radiology, Faculty of Paramedical, Tehran University of Medical Sciences, Tehran, Iran
| | - Saeed Rezapoor
- MSc, Department of Radiology, Faculty of Paramedical, Tehran University of Medical Sciences, Tehran, Iran
| | - Dheyauldeen Shabeeb
- PhD, Department of Physiology, College of Medicine, University of Misan, Misan, Iraq
| | - Ahmed Eleojo Musa
- PhD, Research Center of Molecular and Cellular Imaging, Tehran University of Medical Sciences (International Campus), Tehran, Iran
| | - Masoud Najafi
- PhD, Radiology and Nuclear Medicine Department, School of Paramedical Sciences, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Alireza Shirazi
- PhD, Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
- PhD, Cancer Research Centre, Cancer Institute, Tehran University of Medical Sciences, Tehran, Iran
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7
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Kahkesh MH, Salehi Z, Najafi M, Ghobadi A, Izad M, Shirazi A. The inhibitory effect of melatonin on the proliferation of irradiated A549 cell line. J Cancer Res Ther 2021; 16:1500-1505. [PMID: 33342820 DOI: 10.4103/jcrt.jcrt_682_19] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background Lung cancer is the leading cause of cancer-related deaths worldwide. The high resistance of this type of cancer to radiotherapy and chemotherapy is the greatest challenge for the complete eradication of cancer cells. Although the combination of chemotherapeutic agents has some promising results, severe side effects may limit the received tumor dose. The current study aimed at evaluating the possible synergic effect of melatonin on radiation-induced apoptosis and cell proliferation inhibition. Materials and Methods A549 cells were incubated with melatonin or vehicle and then irradiated with a single dose of 0, 0.5, 2, or 8 Gy X-rays. The cells were incubated with 1 nM of melatonin or vehicle for 1 week and then treated with 1 mM of melatonin or vehicle 1 h before irradiation. Cell proliferation was assessed using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay, and apoptosis was assessed using flowcytometry detection of annexin V. Results Irradiation of the cells with different X-ray doses had no significant impact on MTT results. However, the administration of 1 mM of melatonin 1 h before irradiation significantly reduced the cell proliferation. Nonetheless, there was no significant difference between this treatment group and 1 mM melatonin group. Moreover, the administration of melatonin in combination with irradiation did not show any significant effects on radiation-induced apoptosis. Conclusion The current study results indicated that the treatment of A549 cells with melatonin could suppress cell proliferation, whereas it did not mediate the induction of apoptosis.
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Affiliation(s)
- Masoud Heidari Kahkesh
- Department of Radiology, Faculty of Paramedical, Tehran University of Medical Sciences, Tehran, Iran
| | - Zahra Salehi
- Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Masoud Najafi
- Department of Radiology and Nuclear Medicine, School of Paramedical Sciences, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Alireza Ghobadi
- Department of Radiology, Faculty of Paramedical, Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Izad
- Department of Immunology, School of Medicine, Tehran University of Medical Sciences; MS Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Alireza Shirazi
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
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Eaton C, Tarver J, Shirazi A, Pearson E, Walker L, Bird M, Oliver C, Waite J. A systematic review of the behaviours associated with depression in people with severe-profound intellectual disability. J Intellect Disabil Res 2021; 65:211-229. [PMID: 33426741 DOI: 10.1111/jir.12807] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 11/09/2020] [Accepted: 12/04/2020] [Indexed: 06/12/2023]
Abstract
The assessment of depression in people with severe to profound intellectual disability (severe-profound ID) is challenging, primarily due to inability to report internal states such as mood, feelings of worthlessness and suicidal ideation. This group also commonly presents with challenging behaviours (e.g. aggression and self-injury) with debate about whether these behaviours should be considered 'depressive equivalents' or are sensitive for, but not specific to, depression in severe-profound ID. We conducted a systematic review exploring behaviours associated with depression and low mood in individuals with severe-profound ID. The review was conducted in accordance with Preferred Reporting Items for Systematic Reviews and Meta-Analyses (2009) guidelines. Three electronic databases were searched (Embase, PsycINFO and Ovid MEDLINE), and 13 studies were included and rated for quality. Few studies were rated as having high methodological quality. Behaviours captured by standard diagnostic schemes for depression (e.g. Diagnostic and Statistical Manual of Mental Disorders and International Classification of Diseases) showed a relationship with depression in severe-profound ID, including the two core symptoms (depressed affect and anhedonia), as well as irritability, sleep disturbance, psychomotor agitation, reduced appetite and fatigue. Challenging behaviours such as aggression, self-injury, temper tantrums, screaming and disruptive behaviour were associated with depression. Challenging behaviours show a robust relationship with depression. Whilst these behaviours may suggest an underlying depression, study limitations warrant caution in labelling them as 'depressive equivalents'. These limitations include not controlling for potential confounds (autism, other affective disorders and pain) and bias associated with comparing depressed/non-depressed groups on the same behavioural criteria used to initially diagnose and separate these groups. Future studies that use depressive measures designed for ID populations, which control for confounds and which explore low mood irrespective of psychiatric diagnosis, are warranted to better delineate the behaviours associated with depression in this population (PROSPERO 2018: CRD42018103244).
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Affiliation(s)
- C Eaton
- The Cerebra Centre for Neurodevelopmental Disorders, School of Psychology, University of Birmingham, Birmingham, UK
- Department of Child Life and Health, Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK
| | - J Tarver
- School of Life and Health Sciences, Aston University, Birmingham, UK
| | - A Shirazi
- The Cerebra Centre for Neurodevelopmental Disorders, School of Psychology, University of Birmingham, Birmingham, UK
| | - E Pearson
- School of Life and Health Sciences, Aston University, Birmingham, UK
| | - L Walker
- School of Life and Health Sciences, Aston University, Birmingham, UK
| | - M Bird
- School of Life and Health Sciences, Aston University, Birmingham, UK
| | - C Oliver
- The Cerebra Centre for Neurodevelopmental Disorders, School of Psychology, University of Birmingham, Birmingham, UK
| | - J Waite
- School of Life and Health Sciences, Aston University, Birmingham, UK
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Tajabadi E, Javadi A, Azar NA, Najafi M, Shirazi A, Shabeeb D, Musa AE. Radioprotective effect of a combination of melatonin and metformin on mice spermatogenesis: A histological study. Int J Reprod Biomed 2020; 18:1073-1080. [PMID: 33426418 PMCID: PMC7778753 DOI: 10.18502/ijrm.v18i12.8029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2019] [Revised: 03/04/2020] [Accepted: 06/27/2020] [Indexed: 11/24/2022] Open
Abstract
Background The spermatogenesis system includes highly radiosensitive cells. Hence, this system is a potential target for toxic effects of ionizing radiation during radiotherapy of abdomen and pelvis cancers, as well as after accidental radiation events. Accordingly, metformin and melatonin are two important radioprotectors that have shown an ability to prevent cell death through neutralization of free radicals and stimulating DNA damage responses. Objective To evaluate the radioprotective effects of melatonin and metformin on mice spermatogenesis when administered alone or as a combination. Materials and Methods In this histological Study, 40 (6-8 wk, 30 gr) NMRI mice were divided into 8 groups (n = 5/each) as control, metformin, melatonin, melatonin + metformin, radiation, radiation + melatonin, radiation + metformin, and radiation + melatonin + metformin. 37 days after the irradiation, the testicular tissues were collected for histological evaluation. Results Single administration of melatonin could ameliorate effectively radiation toxicity in mice testis. Metformin showed radioprotective effects on some parameters such as the numbers of spermatogonia and mature sperms. Interestingly, the melatonin and metformin combination reversed the reduced number of sperms rather than single drug administration. Conclusion The combination of melatonin with metformin can protect mice spermatogenesis against ionizing radiation more effectively compared to the single forms of these drugs.
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Affiliation(s)
- Elham Tajabadi
- Department of Medical Radiation Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Abdolreza Javadi
- Department of Pathology, Imam Hossein Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Nasim Ahmadi Azar
- Department of Medical Radiation Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Masoud Najafi
- Medical Technology Research Center, Institute of Health Technology, Kermanshah University of Medical Sciences, Kermanshah, Iran.,Radiology and Nuclear Medicine Department, School of Paramedical Sciences, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Alireza Shirazi
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran.,Radiation Oncology Department, Cancer Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Dheyauldeen Shabeeb
- Department of Physiology, College of Medicine, University of Misan, Misan, Iraq
| | - Ahmed Eleojo Musa
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran.,Research Center for Molecular and Cellular Imaging, Tehran University of Medical Sciences (International Campus), Tehran, Iran
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10
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Parwaie W, Geraily G, Shirazi A, Mehri-Kakavand G, Farzin M. Evaluation of ferrous benzoic methylthymol-blue gel as a dosimeter via magnetic resonance imaging. Phys Med 2020; 80:47-56. [DOI: 10.1016/j.ejmp.2020.10.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 09/21/2020] [Accepted: 10/10/2020] [Indexed: 11/29/2022] Open
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Parwaie W, Geraily G, Shirazi A, Yarahmadi M, Shakeri A, Ardekani MA. Evaluation of lung heterogeneity effects on dosimetric parameters in small photon fields using MAGIC polymer gel, Gafchromic film, and Monte Carlo simulation. Appl Radiat Isot 2020; 166:109233. [PMID: 32836165 DOI: 10.1016/j.apradiso.2020.109233] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 04/20/2020] [Accepted: 05/17/2020] [Indexed: 10/23/2022]
Abstract
In this work, the performance of MAGIC polymer gel in measuring dosimetric parameters beyond lung heterogeneity in small fields was investigated. All data were obtained using MAGIC, EBT2, and MC in four small field sizes. The maximum local differences between MAGIC and MC were less than 5.1, 3.9, 3.1, and 2.6% for PDD values behind lung heterogeneity at 5, 10, 20, and 30 mm field sizes, respectively. The findings showed that MAGIC is a suitable tool for dosimetry behind low-density heterogeneity.
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Affiliation(s)
- Wrya Parwaie
- Department of Medical Physics and Biomedical Engineering, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Ghazale Geraily
- Department of Medical Physics and Biomedical Engineering, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
| | - Alireza Shirazi
- Department of Medical Physics and Biomedical Engineering, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mehran Yarahmadi
- Department of Medical Physics, Faculty of Medicine, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Ahmad Shakeri
- Valiasr Radiotherapy Oncology Center, Valiasr Hospital, Qom, Iran
| | - Mahdieh Afkhami Ardekani
- Department of Radiology, Faculty of Para-Medicine, Hormozgan University of Medical Sciences, Bandar Abbas, Iran.
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12
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Parwaie W, Geraily G, Shirazi A, Shakeri A, Massumi H, Farzin M. Analysis of the ferrous benzoic methylthymol-blue gel dosimeter in low-dose-level measurements. Radiat Phys Chem Oxf Engl 1993 2020. [DOI: 10.1016/j.radphyschem.2020.108943] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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13
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Amini P, Ashrafizadeh M, Motevaseli E, Najafi M, Shirazi A. Mitigation of radiation-induced hematopoietic system injury by melatonin. Environ Toxicol 2020; 35:815-821. [PMID: 32125094 DOI: 10.1002/tox.22917] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 02/05/2020] [Accepted: 02/20/2020] [Indexed: 06/10/2023]
Abstract
BACKGROUND Increased risks of exposure to accidental radiation events are a concern in today's world. Radiation terror, nuclear explosion, as well as accidental exposure to radioactive sources in some industries pose a threat to the life of exposed persons. Studies have been conducted using some low-toxic agents to mitigate radiation toxicity and increase survival probability for exposed people. In the current study, we aimed to show the mitigation of radiation-induced mortality and bone marrow toxicity using postirradiation treatment with melatonin. METHOD Mice whole bodies were exposed to 4 or 7 Gy radiation followed by treatment with melatonin after 24 hours. Survival of mice with or without melatonin, the levels of peripheral cells, transforming growth factor (TGF)-β and 8-hydroxy-2' -deoxyguanosine (8-OHdG) in the bone marrow, as well as the expression of NADPH oxidase (NOX)2 and NOX4 in bone marrow cells were evaluated. RESULTS Whole body irradiation led to mortality 30 days after irradiation. However, melatonin treatment reduced mortality. Irradiation also showed severe reduction of lymphocytes, platelets, and red blood cells. The expressions of NOX2 and NOX4, in addition to TGF-β level, were increased after exposure to radiation. Melatonin ameliorated the increased levels of these factors and improved the number of blood cells. CONCLUSIONS Melatonin showed ability to mitigate radiation-induced hematopoietic system toxicity and also increased survival rate. These results suggest that melatonin could be a potential mitigator for accidental radiation events.
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Affiliation(s)
- Peyman Amini
- Department of Radiology, Faculty of Paramedical, Tehran University of Medical Sciences, Tehran, Iran
| | - Milad Ashrafizadeh
- Department of Basic Science, Veterinary Medicine Faculty, Tabriz University, Tabriz, Iran
| | - Elahe Motevaseli
- Department of Molecular Medicine, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Masoud Najafi
- Radiology and Nuclear Medicine Department, School of Paramedical Sciences, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Alireza Shirazi
- Department of Medical Physics and Biomedical Engineering, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
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14
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Shabeeb D, Musa AE, Keshavarz M, Mihandoust E, Hassanzadeh G, Hadian MR, Shirazi A, Najafi M. Brachial Plexopathy as a Complication of Radiotherapy: A Systematic Review. CCTR 2020. [DOI: 10.2174/1573394715666190724102937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
Radiotherapy is a commonly used cancer treatment modality. However,
radiation-induced complications are major drawbacks, especially at high doses. Radiation-induced
brachial plexopathy (RIBP) is mostly observed in breast and lung cancer patients some months to
years after radiotherapy. RIBP symptoms have negative effects on patients’ quality of life. The
aim of this study was to review RIBP according to the preferred reporting items for systematic
reviews and meta-analyses (PRISMA) guidelines.
Methods:
Online databases (PubMed, Scopus, Web of Science and Embase) were searched to
retrieve relevant studies on brachial plexopathy as a complication of radiotherapy.
Results:
Initial search results yielded a total of 657 articles. After careful screening of their titles
and abstracts, according to the inclusion and exclusion criteria, 31 articles were finally included in
this study. Findings from these 31 papers showed that a total of 9192 cancer patients had undergone
radiotherapy for different regions including chest, axillary area, thoracic outlet, neck and
breast. 26.4% of these patients had RIPB (associated with symptoms such as paresthesia, pain,
weakness, and/or motor dysfunction, organ pathology/dysfunction etc.) with different follow up
times, where 8.2% of patients had RIPB after a mean time of 1.2 years, 15.8% after 2.6 years,
51% after 5 years, 14% after 7.8 years, and 11% after 10.5 years.
Conclusion:
From our findings, we can conclude that the issue of radiation-induced brachial
plexus complication in human is of great concern. Common symptoms associated with this complication
include paresthesia, numbness, pain and weakness. We recommend the use of individual
dose planning and computer-assisted image segmentation techniques that support rapid and reliable
contouring of the brachial plexus. Also, the radiation dose to the brachial plexus should be
limited as much as possible to reduce the risk of brachial plexopathy.
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Affiliation(s)
- Dheyauldeen Shabeeb
- Department of Medical Physics and Biomedical Engineering, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Ahmed E. Musa
- Department of Medical Physics and Biomedical Engineering, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mansoor Keshavarz
- Department of Physiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Ehsan Mihandoust
- Department of Medical Radiation Engineering, School of Medicine, Islamic Azad University, Tehran, Iran
| | - Gholamreza Hassanzadeh
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad R. Hadian
- Brain and Spinal Cord Injury Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Alireza Shirazi
- Department of Medical Physics and Biomedical Engineering, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Masoud Najafi
- Radiology and Nuclear Medicine Department, School of Paramedical Sciences, Kermanshah University of Medical Sciences, Kermanshah, Iran
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Farahani S, Riyahi Alam N, Haghgoo S, Shirazi A, Geraily G, Gorji E, Kavousi N. The effect of bismuth nanoparticles in kilovoltage and megavoltage radiation therapy using magnetic resonance imaging polymer gel dosimetry. Radiat Phys Chem Oxf Engl 1993 2020. [DOI: 10.1016/j.radphyschem.2019.108573] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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16
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Mahmoudi A, Geraily G, Hadisinia T, Shirazi A, Najafzadeh M. Beam penumbra reduction of Gamma Knife machine model 4C using Monte Carlo simulation. Comput Methods Programs Biomed 2020; 188:105261. [PMID: 31841789 DOI: 10.1016/j.cmpb.2019.105261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 11/30/2019] [Accepted: 12/04/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND AND OBJECTIVE In small radiation fields used in stereotactic radiosurgery penumbra is an important portion of the field size especially when critical organs at risk are located near the treatment sites. This study was aimed to reduce penumbra width (90%-50% isodose lines) of Gamma Knife (GK) machine by investigating of source to diaphragm distance (SDD) and designing compensating filter. METHODS Compensating filters at the end of the helmet collimators with the aim of reducing penumbra as well as reducing hot spots appeared near the edge of beam were modeled using Monte Carlo simulation code. Moreover, the SDD parameter was increased as one of the effective factors on penumbra width. RESULTS Results showed that single beam penumbra width using optimal design of filters was decreased by 59.49%, 42.50%, 39.02% and 34.44% with attenuation of 30.53%, 13.67%, 11.43% and 9.82% for 4, 8, 14 and 18 mm field sizes, respectively. CONCLUSIONS The designed filters lead to considerable reductions in single beams penumbra width as well as a noticeable reduction in maximum dose emerged near the beam edge due to the curved lateral surface of filters.
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Affiliation(s)
- Atefeh Mahmoudi
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Islamic Republic of Iran
| | - Ghazale Geraily
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Islamic Republic of Iran.
| | - Tahereh Hadisinia
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Islamic Republic of Iran.
| | - Alireza Shirazi
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Islamic Republic of Iran.
| | - Milad Najafzadeh
- Department of Radiology, Faculty of Para-Medicine, Hormozgan University of Medical Sciences, Bandar Abbas, Islamic Republic of Iran
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Azar NA, Javadi A, Najafi M, Shirazi A, Tajabadi E, Shabeeb D, Musa AE. Evaluating Radioprotection of Rat’s Jejunum by a Combination of Melatonin and Metformin. LETT DRUG DES DISCOV 2020. [DOI: 10.2174/1570180816666190617153004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
ejunum is one of the most radiosensitive parts of the gastrointestinal
system. This is the main issue, leading to several side effects to patients with abdominal cancers, in
addition to affecting their quality of life. Epithelial layer and clonogenic cells in the jejunum are the
most sensitive parts of the intestine, while damage to vascular may lead to chronic inflammation and
bleeding. Both melatonin and metformin have shown abilities to attenuate radiation toxicities
through the modulation of DNA damage responses, neutralization of free radicals and alleviation of
inflammation. In this study, we aimed to evaluate the possible radioprotective effects of melatonin
and metformin when administered either alone or as a combination, in rat’s jejunum against a high
dose of radiation.
Methods:
40 male rats were divided into 8 groups as G1: control; G2: metformin; G3: melatonin;
G4: melatonin + metformin; G5: radiation; G6: radiation + melatonin; G7: radiation + metformin;
G8: metformin + melatonin + radiation. Rats were irradiated with 10 Gy gamma rays, while
treatments were administered at 100 mg/kg. The ratio for melatonin and metformin was 1:1. 3.5 days
after irradiation, all rats were sacrificed, followed by histopathological evaluation of the jejunum.
Results:
This study showed that whole body irradiation of rats led to severe injuries to the epithelial
and vascular of jejunum. A single administration of either melatonin or metformin was unable to
mitigate radiation toxicity. However, administering the combination of melatonin and metformin
could mildly mitigate radiation-induced jejunum injury.
Conclusion:
From the results of this study, we suggest that the combination of melatonin and
metformin has superior radioprotective effect for jejunum compared with the single administration of
these drugs.
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Affiliation(s)
- Nasim Ahmadi Azar
- Department of Medical Radiation Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Abdolreza Javadi
- Department of Pathology, Imam Hossein Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Masoud Najafi
- Radiology and Nuclear Medicine Department, School of Paramedical Sciences, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Alireza Shirazi
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Elham Tajabadi
- Department of Medical Radiation Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Dheyauldeen Shabeeb
- Department of Physiology, College of Medicine, University of Misan, Misan, Iraq
| | - Ahmed Eleojo Musa
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
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18
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Eskandari A, Mahmoudzadeh A, Shirazi A, Esmaely F, Carnovale C, Cheki M. Melatonin a Promising Candidate for DNA Double-Stranded Breaks Reduction in Patients Undergoing Abdomen-Pelvis Computed Tomography Examinations. Anticancer Agents Med Chem 2020; 20:859-864. [PMID: 32208125 DOI: 10.2174/1871521409666200324101701] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Revised: 12/20/2019] [Accepted: 02/04/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND AND OBJECTIVE Cancer incidence is 24% higher in children and young adults exposed to Computed Tomography (CT) scans than those unexposed. Non-repairing of ionizing radiation-induced DNA Double-Strand Breaks (DSBs) can initiate carcinogenesis. In the present study, we aimed to investigate the radioprotective potential of melatonin against DSBs in peripheral blood lymphocytes of patients undergoing abdomen-pelvis CT examinations. METHODS This double-blind, placebo-controlled clinical trial was conducted on thirty patients. These patients were divided into two groups; group one (control) patients who have undergone the CT examination received a single oral dose of placebo, while in group two, patients received a single oral dose of 100mg melatonin. In both the groups, blood samples were collected 5-10min before and 30 minutes after the CT examination. The lymphocytes from these samples were isolated and DSBs were analyzed using γH2AX immunofluorescence microscopy. RESULTS Compared to the control group, the use of melatonin 1h before the CT examination caused a significant reduction in γH2AX-foci, indicating a reduction in DSBs. In addition, no side effect was observed in patients following 100mg melatonin administration. CONCLUSION For the first time, this study has shown that melatonin has protective effects against radiationinduced genotoxicity in peripheral blood lymphocytes of patients undergoing abdomen-pelvis CT examinations. Therefore, melatonin can be considered as a promising candidate for reducing DSBs in patients undergoing abdomen-pelvis CT examinations.
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Affiliation(s)
- Ali Eskandari
- Department of Medical Radiation Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Aziz Mahmoudzadeh
- Department of Biosciences and Biotechnology, Malek-Ashtar University of Technology, Tehran, Iran
| | - Alireza Shirazi
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences and Health Services, Tehran, Iran
| | - Farid Esmaely
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences and Health Services, Tehran, Iran
| | - Carla Carnovale
- Department of Biomedical and Clinical Sciences L. Sacco, Unit of Clinical Pharmacology, ASST Fatebenefratelli-Sacco University Hospital, Università di Milano, Milan, Italy
| | - Mohsen Cheki
- Department of Radiologic Technology, Faculty of Paramedicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.,Toxicology Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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19
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Shabeeb D, Musa AE, Keshavarz M, Hassanzadeh G, Hadian MR, Nowrouzi A, Shirazi A, Najafi M. Melatonin Ameliorates Radiation-induced Sciatic Nerve Injury. LETT DRUG DES DISCOV 2019. [DOI: 10.2174/1570180816666190617160434] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
Radiotherapy is a treatment method for cancer mostly utilized for about
60% of cancer patients. Peripheral neuropathy is one of the severe complications of radiotherapy.
Two stages of neuropathy will occur following irradiation; electrophysiological and biochemical
variations as the first stage, while the second stage involves fibrosis of soft tissues surrounding the
exposed nerve. This novel study aimed to investigate the radioprotective effects of melatonin against
ionizing radiation-induced sciatic nerve damage.
Methods:
60 rats were randomly assigned to four groups; C (Control), M (Melatonin), R (Radiation),
MR (Radiation + Melatonin). Their right legs were exposed to 30 Gy single dose gamma rays. Melatonin
(100 mg/kg) was administered 30 min before irradiation and once daily (5 mg/kg) till the day
of rats’ sacrifice. Their exposed nerve tissues were evaluated for biochemical changes in addition to
Electromyography (EMG) and Nerve Conduction Study (NCS).
Results:
4, 12 and 20 weeks post-irradiation, EMG and NCS examinations in R group showed reduced
Compound Muscle Action Potential (CMAP) representing axonal degeneration when compared
with C and M groups. Prolonged latency and a decrease in Conduction Velocity (CV) gave an
indication of demyelinating neuropathy at 12 and 20 weeks. EMG and NCS results of R group
showed partial nerve lesion. Biochemical assessments showed that irradiation of sciatic nerve led to
increased MDA level, as well as decreased CAT and SOD activities. However, in all cases, treatment
with melatonin can reverse these effects.
Conclusion:
We conclude that melatonin can improve electrophysiological, oxidative stress and
antioxidant defense features of irradiated rats’ sciatic nerves. We would also recommend the use of
melatonin in an optimal and safe dose. It should be administered over a long period of time for effective
protection of the peripheral nerve tissues, as well as improving the therapeutic ratio of radiotherapy.
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Affiliation(s)
- Dheyauldeen Shabeeb
- Department of Medical Physics and Biomedical Engineering, School of Medicine, Tehran University of Medical Sciences, International Campus, Tehran, Iran
| | - Ahmed Eleojo Musa
- Department of Medical Physics and Biomedical Engineering, School of Medicine, Tehran University of Medical Sciences, International Campus, Tehran, Iran
| | - Mansoor Keshavarz
- Electrophysiology Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Gholamreza Hassanzadeh
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammed Reza Hadian
- Brain and Spinal Cord Injury, Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Azin Nowrouzi
- Department of Biochemistry, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Alireza Shirazi
- Department of Medical Physics and Biomedical Engineering, School of Medicine, Tehran University of Medical Sciences, International Campus, Tehran, Iran
| | - Masoud Najafi
- Radiology and Nuclear Medicine Department, School of Paramedical Sciences, Kermanshah University of Medical Sciences, Kermanshah, Iran
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Najafi M, Shirazi A, Motevaseli E, Geraily G, Amini P, Tooli LF, Shabeeb D. Melatonin Modulates Regulation of NOX2 and NOX4 Following Irradiation in the Lung. ACTA ACUST UNITED AC 2019; 14:224-231. [DOI: 10.2174/1574884714666190502151733] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 04/16/2019] [Accepted: 04/18/2019] [Indexed: 12/15/2022]
Abstract
Background:
Exposure to ionizing radiation may lead to chronic upregulation of inflammatory
mediators and pro-oxidant enzymes, which give rise to continuous production of reactive
oxygen species (ROS). NADPH oxidases are among the most important ROS producing enzymes.
Their upregulation is associated with DNA damage and genomic instability. In the present
study, we sought to determine the expressions of NADPH oxidases; NOX2 and NOX4, in rat’s lung
following whole body or pelvis irradiation. In addition, we evaluated the protective effect of melatonin
on the expressions of NOX2 and NOX4, as well as oxidative DNA injury.
Materials and Methods:
35 male rats were divided into 7 groups, G1: control; G2: melatonin (100 mg/kg) treatment;
G3: whole body irradiation (2 Gy); G4: melatonin plus whole body irradiation; G5: local
irradiation to pelvis area; G6: melatonin treatment plus 2 Gy gamma rays to pelvis area; G7: scatter
group. All the rats were sacrificed after 24 h. afterwards, the expressions of TGFβR1, Smad2, NF-
κB, NOX2 and NOX4 were detected using real-time PCR. Also, the level of 8-OHdG was detected
by ELISA, and NOX2 and NOX4 protein levels were detected by western blot.
Results:
Whole body irradiation led to the upregulation of all genes, while local pelvis irradiation
caused upregulation of TGFβR1, NF-κB, NOX2 and NOX4, as well as protein levels of NOX2 and
NOX4. Treatment with melatonin reduced the expressions of these genes and also alleviated oxidative
injury in both targeted and non-targeted lung tissues. Results also showed no significant reduction
for NOX2 and NOX4 in bystander tissues following melatonin treatment.
Conclusion:
It is possible that upregulation of NOX2 and NOX4 is involved in radiation-induced
targeted and non-targeted lung injury. Melatonin may reduce oxidative stress following upregulation
of these enzymes in directly irradiated lung tissues but not for bystander.
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Affiliation(s)
- Masoud Najafi
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Alireza Shirazi
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Elahe Motevaseli
- Department of Molecular Medicine, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Ghazale Geraily
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Peyman Amini
- Department of Radiology, Faculty of Paramedical, Tehran University of Medical Sciences, Tehran, Iran
| | - Leila Farhadi Tooli
- Department of Microbiology, School of Biology, College of Sciences, Tehran University, Tehran, Iran
| | - Dheyauldeen Shabeeb
- Department of Physiology, College of Medicine, University of Misan, Misan, Iraq
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21
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Shabeeb D, Keshavarz M, Shirazi A, Hassanzadeh G, Hadian MR, Nowrouzi A, Najafi M, Musa AE. Evaluation of the Radioprotective Effects of Melatonin Against Ionizing Radiation-Induced Muscle Tissue Injury. Curr Radiopharm 2019; 12:247-255. [DOI: 10.2174/1874471012666190219120329] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 01/03/2019] [Accepted: 01/04/2019] [Indexed: 11/22/2022]
Abstract
Background:
Radiotherapy (RT) is a treatment method for cancer using ionizing radiation
(IR). The interaction between IR with tissues produces free radicals that cause biological damages.As
the largest organ in the human body, the skeletal muscles may be affected by detrimental effects of
ionizing radiation. To eliminate these side effects, we used melatonin, a major product secreted by the
pineal gland in mammals, as a radioprotective agent.
Materials and Methods:
For this study, a total of sixty male Wistar rats were used. They were allotted to 4
groups: control (C), melatonin (M), radiation (R) and melatonin + radiation (MR). Rats’ right hind legs
were irradiated with 30 Gy single dose of gamma radiation, while 100 mg/kg of melatonin was given to
them 30 minutes before irradiation and 5 mg/ kg once daily afternoon for 30 days. Five rats in each group
were sacrificed 4, 12 and 20 weeks after irradiation for histological and biochemical examinations.
Results:
Our results showed radiation-induced biochemical, histological and electrophysiological
changes in normal rats’ gastrocnemius muscle tissues. Biochemical analysis showed that malondialdehyde
(MDA) levels significantly elevated in R group (P<0.001) and reduced significantly in M and MR
groups after 4, 12, and 20 weeks (P<0.001), However, the activity of catalase (CAT) and superoxide
dismutase(SOD)decreased in the R group and increased in M and MR groups for the same periods of
time compared with the C group (P<0.001), while melatonin administration inverted these effects(
P<0.001).Histopathological examination showed significant differences between R group for
different parameters compared with other groups (P<0.001). However, the administration of melatonin
prevented these effects(P<0.001). Electromyography (EMG) examination showed that the compound
action potential (CMAP) value in the R group was significantly reduced compared to the effects in the
C and M groups after 12 and 20 weeks (P<0.001). The administration of melatonin also reversed these
effects (P<0.001).
Conclusion:
Melatonin can improve biochemical, electrophysiological and morphological features of
irradiated gastrocnemius muscle tissues.Our recommendation is that melatonin should be administered
in optimal dose. For effective protection of muscle tissues, and increased therapeutic ratio of radiation
therapy, this should be done within a long period of time.
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Affiliation(s)
- Dheyauldeen Shabeeb
- Electrophysiology Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Mansoor Keshavarz
- Electrophysiology Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Alireza Shirazi
- Electrophysiology Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Gholamreza Hassanzadeh
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammed Reza Hadian
- Brain and Spinal Cord Injury Research Center, Neuroscience Institute, Tehran University of Medical Science, Tehran, Iran
| | - Azin Nowrouzi
- Department of Biochemistry, School of Medicine, Tehran University of Medical Science, Tehran, Iran
| | - Masoud Najafi
- Department of Medical Physics and Biomedical Engineering, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Ahmed Eleojo Musa
- Research Center for Molecular and Cellular Imaging, Tehran University of Medical Sciences, Tehran, Iran
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Najafi M, Shirazi A, Motevaseli E, Geraily G, Amini P, Shabeeb D, Eleojo Musa A. Evaluating the Expression of NOX2 and NOX4 Signaling Pathways in Rats' Lung Tissues Following Local Chest Irradiation; Modulatory Effect of Melatonin. Int J Mol Cell Med 2019; 7:220-225. [PMID: 31516881 PMCID: PMC6709931 DOI: 10.22088/ijmcm.bums.7.4.220] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Accepted: 11/12/2018] [Indexed: 01/21/2023]
Abstract
Lung injury is one of the major concerns for chest cancer patients that undergo radiotherapy as well as persons exposed to an accidental radiological event. Reduction/oxidation (redox) system plays a key role in lung injury via chronic upregulation of pro-oxidant enzymes. NOX2 and NOX4 are two important reactive oxygen species generating enzymes that are involved in radiation toxicity in some organs such as the bone marrow. In this study, we aimed to evaluate the expression of NOX2 and NOX4 signaling in rat's lung tissues. Upregulation of these genes may be involved in radiation-induced lung injury. Moreover, we evaluated the role of pre-treatment with melatonin on the expression of these genes. Twenty male rats were divided into 4 groups as control; melatonin treated; irradiation; and irradiation with melatonin pre-treatment. Rats were exposed to 15 Gy 60Co gamma rays and sacrificed after 10 weeks for evaluation of NF-κB, TGFβR1, SMAD2, NOX2, and NOX4 gene expression by real-time PCR. Results showed the upregulation of all five genes. The expression of NOX2 was more obvious compared to other genes. Administration of melatonin before irradiation could attenuate the expression of all mentioned genes. Results indicate that upregulation of NADPH oxidase genes such as NOX2 and NOX4 may be involved in the late effects of lung exposure to ionizing radiation. Melatonin via downregulation of these pro-oxidant genes is able to attenuate radiation toxicity in the lung.
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Affiliation(s)
- Masoud Najafi
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Alireza Shirazi
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Elahe Motevaseli
- Department of Molecular Medicine, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Ghazale Geraily
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Peyman Amini
- Department of Radiology, Faculty of Paramedical, Tehran University of Medical Sciences, Tehran, Iran
| | - Dheyauldeen Shabeeb
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences (International Campus), Tehran, Iran.,Department of Physiology, College of Medicine, University of Misan, Misan, Iraq
| | - Ahmed Eleojo Musa
- Research Center for Molecular and Cellular Imaging, Tehran University of Medical Sciences (International Campus), Tehran, Iran
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Kolivand S, Motevaseli E, Cheki M, Mahmoudzadeh A, Shirazi A, Fait V. The Anti-apoptotic Mechanism of Metformin Against Apoptosis Induced by Ionizing Radiation in Human Peripheral Blood Mononuclear Cells. Klin Onkol 2019; 30:372-379. [PMID: 29031039 DOI: 10.14735/amko2017372] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND In a previous article, we showed that metformin (MET) can reduce ionizing radiation (IR) induced apoptosis in human peripheral blood mononuclear cells. However, the anti-apoptotic mechanism of MET against IR remains unclear. The present study attempts to investigate the mechanism of action of MET in limiting X-ray induced apoptosis in human peripheral blood mononuclear cells. MATERIAL AND METHODS Mononuclear cells were treated with MET for 2 hours and irradiated with 6 MV X-rays. The gene expression levels of BAX, CASP3 and BCL2 were determined 24 hours post irradiation using real time quantitative polymerase chain reaction (qPCR) technique. Furthermore, the protein levels of BAX, CASP3 and BCL2 were analyzed by Western blotting assay. RESULTS Radiation exposure increased the expressions of BAX and CASP3 genes, and decreased the expression of BCL2 gene in mononuclear cells. Conversely, an increase in BCL2 gene expression along with a decrease in BAX and CASP3 genes expression was observed in MET plus irradiated mononuclear cells. It was found that radiation increased BAX/BCL2 ratio, while MET pretreatment reduced these ratios. Also, treatment with MET without irradiation did not change the expressions of BAX, CASP3 and BCL2 genes. On the other hand, downregulated expression of BCL2 protein and upregulated expressions of BAX and CASP3 proteins were found in 2 Gy irradiated mononuclear cells, while pretreatment with MET significantly reversed this tendency. CONCLUSION These results suggest that MET can protect mononuclear cells against apoptosis induced by IR through induction of cellular anti-apoptotic signaling.Key words: ionizing radiation - metformin - apoptosis - genes - proteins - blood cells.
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Ariyafar T, Mahdavi SR, Geraily G, Fadavi P, Farhood B, Najafi M, Ashouri A, Khalafi L, Shirazi A. Evaluating the effectiveness of combined radiotherapy and hyperthermia for the treatment response of patients with painful bony metastases: A phase 2 clinical trial. J Therm Biol 2019; 84:129-135. [PMID: 31466745 DOI: 10.1016/j.jtherbio.2019.06.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2018] [Revised: 03/27/2019] [Accepted: 06/01/2019] [Indexed: 01/03/2023]
Abstract
INTRODUCTION Since the survival time of patients with bony metastases has noticeably improved in recent years, these patients are at high risk of complications associated with this metastasis. Hence, the appropriate choice of treatment modality or combination of therapeutic approaches can lead to increasing bone pain relief, improving quality of life, etc. This study is aimed to evaluate the effectiveness of combined radiotherapy and hyperthermia for the treatment response of patients with painful bony metastases. PATIENTS AND METHODS In a single-arm clinical trial, 23 eligible patients (14 female and 9 male) with the mean age of 67 years old and suffering from bony metastases were enrolled in the study. Two hours after radiotherapy, the patients underwent hyperthermia for 1 h in the supine position. All the patients completed the brief pain inventory (BPI) assessment tool and quality of life questionnaire (QLQ-C30) from the European Organization for Research and Treatment of Cancer (EORTC) at the baseline, end of the treatment and 1, 2 and 3 months thereafter. The response to the treatment was assessed as the zero score (complete response) or two or more than two-point drop of the worst pain within the preceding 24 h (partial response) during the 3-month posttreatment. RESULTS All the pain intensity and interference scores, except the pain interference with the enjoyment of life score, significantly decreased. A total of 18 out of 23 patients (78%) achieved complete or partial response. The number of patients using pain relief medications decreased from 74% (n=17) at the baseline to 48% (n=11) 3 months later. Moreover, except for nausea and vomiting, appetite loss, diarrhea and financial impact problems, the patients' quality of life improved significantly in all the functional scales and symptoms within 3 months. CONCLUSION This study showed that using hyperthermia in combination with radiotherapy significantly ameliorated bone pain among the patients suffering from cancer with painful bony metastases.
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Affiliation(s)
- Tayebeh Ariyafar
- Department of Medical Physics and Biomedical Engineering, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyed Rabie Mahdavi
- Department of Medical Physics, School of Medicine, Iran University of Medical Science, Tehran, Iran
| | - Ghazale Geraily
- Department of Medical Physics and Biomedical Engineering, Tehran University of Medical Sciences, Tehran, Iran
| | - Pedram Fadavi
- Radiation Oncology Department, Iran University of Medical Sciences, Tehran, Iran
| | - Bagher Farhood
- Department of Medical Physics and Radiology, Faculty of Paramedical Sciences, Kashan University of Medical Sciences, Kashan, Iran
| | - Masoud Najafi
- Department of Radiology and Nuclear Medicine, School of Paramedical Sciences, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Asieh Ashouri
- Cardiovascular Diseases Research Center, Department of Cardiology, Heshmat Hospital, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran
| | - Leila Khalafi
- Department of Medical Physics, School of Medicine, Iran University of Medical Science, Tehran, Iran
| | - Alireza Shirazi
- Department of Medical Physics and Biomedical Engineering, Tehran University of Medical Sciences, Tehran, Iran.
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Amini P, Mirtavoos-Mahyari H, Motevaseli E, Shabeeb D, Musa AE, Cheki M, Farhood B, Yahyapour R, Shirazi A, Goushbolagh NA, Najafi M. Mechanisms for Radioprotection by Melatonin; Can it be Used as a Radiation Countermeasure? Curr Mol Pharmacol 2019; 12:2-11. [PMID: 30073934 DOI: 10.2174/1874467211666180802164449] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2018] [Revised: 06/06/2018] [Accepted: 06/28/2018] [Indexed: 12/16/2022]
Abstract
BACKGROUND Melatonin is a natural body product that has shown potent antioxidant property against various toxic agents. For more than two decades, the abilities of melatonin as a potent radioprotector against toxic effects of ionizing radiation (IR) have been proved. However, in the recent years, several studies have been conducted to illustrate how melatonin protects normal cells against IR. Studies proposed that melatonin is able to directly neutralize free radicals produced by IR, leading to the production of some low toxic products. DISCUSSION Moreover, melatonin affects several signaling pathways, such as inflammatory responses, antioxidant defense, DNA repair response enzymes, pro-oxidant enzymes etc. Animal studies have confirmed that melatonin is able to alleviate radiation-induced cell death via inhibiting pro-apoptosis and upregulation of anti-apoptosis genes. These properties are very interesting for clinical radiotherapy applications, as well as mitigation of radiation injury in a possible radiation disaster. An interesting property of melatonin is mitochondrial ROS targeting that has been proposed as a strategy for mitigating effects in radiosensitive organs, such as bone marrow, gastrointestinal system and lungs. However, there is a need to prove the mitigatory effects of melatonin in experimental studies. CONCLUSION In this review, we aim to clarify the molecular mechanisms of radioprotective effects of melatonin, as well as possible applications as a radiation countermeasure in accidental exposure or nuclear/radiological disasters.
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Affiliation(s)
- Peyman Amini
- Department of Radiology, Faculty of Paramedical, Tehran University of Medical Sciences, Tehran, Iran
| | - Hanifeh Mirtavoos-Mahyari
- Department of Medical Genetics, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Elahe Motevaseli
- Department of Molecular Medicine, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Dheyauldeen Shabeeb
- Department of Medical Physics & Biomedical Engineering, School of Medicine, Tehran University of Medical Sciences, International Campus, Tehran, Iran.,Department of Physiology, College of Medicine, University of Misan, Misan, Iraq
| | - Ahmed Eleojo Musa
- Department of Medical Physics & Biomedical Engineering, School of Medicine, Tehran University of Medical Sciences, International Campus, Tehran, Iran.,Research Center for Molecular and Cellular Imaging, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohsen Cheki
- Department of Radiologic Technology, Faculty of Paramedicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Bagher Farhood
- Department of Medical Physics and Radiology, Faculty of Paramedical Sciences, Kashan University of Medical Sciences, Kashan, Iran
| | - Rasoul Yahyapour
- Department of Medical School, Jiroft University of Medical Sciences, Jiroft, Iran
| | - Alireza Shirazi
- Department of Medical Physics & Biomedical Engineering, School of Medicine, Tehran University of Medical Sciences, International Campus, Tehran, Iran
| | - Nouraddin Abdi Goushbolagh
- Department of medical Physics, International Campus, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Masoud Najafi
- Radiology and Nuclear Medicine Department, School of Paramedical Sciences, Kermanshah University of Medical Sciences, Kermanshah, Iran
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Abadi SHMH, Shirazi A, Alizadeh AM, Changizi V, Najafi M, Khalighfard S, Nosrati H. The Effect of Melatonin on Superoxide Dismutase and Glutathione Peroxidase Activity, and Malondialdehyde Levels in the Targeted and the Non-targeted Lung and Heart Tissues after Irradiation in Xenograft Mice Colon Cancer. Curr Mol Pharmacol 2019; 11:326-335. [PMID: 30173656 DOI: 10.2174/1874467211666180830150154] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 08/01/2018] [Accepted: 08/16/2018] [Indexed: 11/22/2022]
Abstract
PURPOSE Radiation causes damage to irradiated tissues and also tissues that do not receive direct irradiation through a phenomenon called bystander effects. Melatonin as a potent antioxidant and anti-inflammatory agent is known for protection of normal tissues against ionizing irradiation. In addition, some studies have suggested that Melatonin may have some anti-cancer properties. Although the complete mechanisms remain unknown, it can act via immunomodulatory effects. The aim of this study was to evaluate the effect of pretreatment with melatonin on oxidative damage caused by direct irradiation and bystander effects on the lung and heart tissue after xenograft mice colon cancer irradiation in Balb/c mice. MATERIALS AND METHODS Forty nine (49) Balb/c mice were evenly divided into 7 groups including control, irradiation of 5 Gy directly to tumor, melatonin treatment (20 mg/kg) and irradiation (5 Gy single fraction) directly to tumor, irradiation of 5 Gy directly to chest area, melatonin treatment (20 mg/kg) and radiation directly to chest, only melatonin treatment and whole-body scatter group (which gave radiation dose equal to the amount of radiation that the lung had received from the localized pelvic irradiation) to evaluate the effect of melatonin on the MDA level as well as SOD and GPx activity after 24 and 72 h of irradiation of 5 Gy single fraction directly to the tumor tissue and chest area, in the tumor tissue, the lung tissue, and the heart tissue. RESULTS The results revealed that exposure to irradiation resulted in an increase in MDA level and suppressed SOD and GPx activity in the targeted and non-targeted lung and heart tissues, and the tumor tissue. Melatonin decreased MDA level in the lung and heart tissues. Also, melatonin improved SOD and GPx activity in non-targeted tissues, while it was able to reduce these two enzymes and decreased MDA level in the tumor tissue. CONCLUSION Melatonin exhibited its ability to ameliorate oxidative stress in both targeted and nontargeted tissues. Administration of melatonin boosted SOD and GPx activity in the normal tissues, but not in the tumor cells. Through stimulation and suppression of the antioxidant system, Melatonin may cause sensitization of the tumor cells while protecting the normal tissues.
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Affiliation(s)
- Seyede Hadis Momeni Hasan Abadi
- Department of Radiology and Radiotherapy Technology, School of Allied Health Sciences, Tehran University of Medical Sciences, Tehran, Iran
| | - Alireza Shirazi
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran.,Cancer Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Vahid Changizi
- Department of Radiology and Radiotherapy Technology, School of Allied Health Sciences, Tehran University of Medical Sciences, Tehran, Iran
| | - Masoud Najafi
- Department of Radiology and Nuclear Medicine, School of Paramedical Science, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Solmaz Khalighfard
- Cancer Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Hasan Nosrati
- Cancer Research Center, Tehran University of Medical Sciences, Tehran, Iran
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Mahmoudi A, Geraily G, Shirazi A, Hadisi nia T. Penumbra reduction technique and factors affecting it in radiotherapy machines – Review study. Radiat Phys Chem Oxf Engl 1993 2019. [DOI: 10.1016/j.radphyschem.2018.12.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Rezaeejam H, Shirazi A, Izadi P, Bazzaz JT, Ghazi-Khansari M, Valizadeh M, Tabesh GA. Radioprotective effect of melatonin on expression of Cdkn1a and Rad50 genes in rat peripheral blood. J Cancer Res Ther 2019; 14:S1070-S1075. [PMID: 30539848 DOI: 10.4103/0973-1482.196758] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Objective Ionizing radiation is a critical threat to biomolecules, especially DNA. Various combinatorial compounds have been studied to protect this biomolecule. Melatonin has been reported as a direct and indirect free radical scavenger, but in this study, we explored the effect of melatonin on assisting in DNA repair by expression of Cdkn1a and Rad50; both of these genes are involved in DNA repair signaling, induced by radiation in rat peripheral blood. Materials and Methods Rats were irradiated with single whole-body linear accelerator X-ray radiation doses of 2 and 8 Gy with or without melatonin (100 mg/kg body weight) pretreatments. The rats were randomly divided into nine groups and given an intraperitoneal injection of melatonin or the same volume of vehicle alone 1 h before radiation. Blood samples were taken 8, 24, and 48 h postradiation to measure gene expression of Cdkn1a and Rad50 using quantitative reverse transcription polymerase chain reaction technique. Results Melatonin pretreatment increased the expression of Cdkn1a and Rad50 in 8 and 24 h postradiations (2 and 8 Gy) (P < 0.05), and there was no significant difference in 48 h postradiation compared to the radiation-only and vehicle plus radiation (2 and 8 Gy) groups. Conclusions Based on our results, pretreatment with melatonin (100 mg/kg) may ameliorates injurious effects of 2 and 8 Gy ionization radiation by increasing the expression level of Cdkn1a and Rad50 in rat peripheral blood and assist in DNA double-strand breaks repair, especially during the early postradiation.
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Affiliation(s)
- Hamed Rezaeejam
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Alireza Shirazi
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Pantea Izadi
- Department of Medical Genetics, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Javad Tavakkoly Bazzaz
- Department of Medical Genetics, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahmoud Ghazi-Khansari
- Department of Pharmacology, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Majid Valizadeh
- Department of Medical Physics, Faculty of Medicine, Zabol University of Medical Sciences, Zabol, Iran, Iran
| | - Ghasem Azizi Tabesh
- Department of Medical Genetics, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
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Shabeeb D, Najafi M, Musa AE, Keshavarz M, Shirazi A, Hassanzadeh G, Hadian MR, Samandari H. Biochemical and Histopathological Evaluation of the Radioprotective Effects of Melatonin Against Gamma Ray-Induced Skin Damage. Curr Radiopharm 2019; 12:72-81. [PMID: 30465519 DOI: 10.2174/1874471012666181120163250] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2018] [Revised: 10/25/2018] [Accepted: 11/07/2018] [Indexed: 11/22/2022]
Abstract
BACKGROUND Radiotherapy is one of the treatment methods for cancers using ionizing radiations. About 70% of cancer patients undergo radiotherapy. Radiation effect on the skin is one of the main complications of radiotherapy and dose limiting factor. To ameliorate this complication, we used melatonin as a radioprotective agent due to its antioxidant and anti-inflammatory effects, free radical scavenging, improving overall survival after irradiation as well as minimizing the degree of DNA damage and frequency of chromosomal abrasions. METHODS Sixty male Wistar rats were randomly assigned to 4 groups: control (C), melatonin (M), radiation (R) and melatonin + radiation (MR). A single dose of 30 Gy gamma radiation was exposed to the right hind legs of the rats while 40 mg/ml of melatonin was administered 30 minutes before irradiation and 2 mg/ml once daily in the afternoon for one month till the date of rat's sacrifice. Five rats from each group were sacrificed 4, 12 and 20 weeks after irradiation. Afterwards, their exposed skin tissues were examined histologically and biochemically. RESULTS In biochemical analysis, we found that malondialdehyde (MDA) levels significantly increased in R group and decreased significantly in M and MR groups after 4, 12, and 20 weeks, whereas catalase (CAT) and superoxide dismutase (SOD) activities decreased in the R group and increased in M and MR groups during the same time periods compared with the C group (p<0.05). Histopathological examination found there were statistically significant differences between R group compared with the C and M groups for the three different time periods (p<0.005, p<0.004 and p<0.004) respectively, while R group differed significantly with MR group (p<0.013). No significant differences were observed between C and M compared with MR group (p>0.05) at 4 and 20 weeks except for inflammation and hair follicle atrophy, while there were significant effects at 12 weeks (p<0.05). CONCLUSION Melatonin can be successfully used for the prevention and treatment of radiation-induced skin injury. We recommend the use of melatonin in optimal and safe doses. These doses should be administered over a long period of time for effective radioprotection and amelioration of skin damages as well as improving the therapeutic ratio of radiotherapy.
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Affiliation(s)
- Dheyauldeen Shabeeb
- Department of Medical Physics and Biomedical Engineering, School of Medicine, Tehran University of Medical Science, International Campus, Tehran, Iran
- Department of Physiology, College of Medicine, University of Misan, Iraq
- Electrophysiology Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Masoud Najafi
- Radiology and Nuclear Medicine Department, School of Paramedical Sciences, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Ahmed Eleojo Musa
- Department of Medical Physics and Biomedical Engineering, School of Medicine, Tehran University of Medical Science, International Campus, Tehran, Iran
- Research Center for Molecular and Cellular Imaging, Tehran University of Medical Sciences, Tehran, Iran
| | - Mansoor Keshavarz
- Electrophysiology Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
- Department of Physiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Alireza Shirazi
- Department of Medical Physics and Biomedical Engineering, School of Medicine, Tehran University of Medical Science, International Campus, Tehran, Iran
- Electrophysiology Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Gholamreza Hassanzadeh
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammed Reza Hadian
- Brain and Spinal Cord Injury, Research Center, Neuroscience Institute, Tehran University of Medical Science, Tehran, Iran
| | - Hedayat Samandari
- Department of Physiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
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Shabeeb D, Najafi M, Keshavarz M, Musa AE, Hassanzadeh G, Hadian MR, Shirazi A. Recent Finding in Repair of the Peripheral Nerve Lesions Using Pharmacological Agents: Common Methods for Evaluating the Repair Process. Cent Nerv Syst Agents Med Chem 2018; 18:161-172. [PMID: 30160219 DOI: 10.2174/1871524918666180830101953] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2017] [Revised: 07/13/2018] [Accepted: 08/27/2018] [Indexed: 11/22/2022]
Abstract
INTRODUCTION Peripheral nerve lesion is a common clinical problem that may produce longterm functional defects. Usually, crush injuries, fractures, scars, lacerations, compression, or iatrogenic reasons are reasons for nerve injuries. Unsuccessful treatment of nerve injuries causes partial or total loss of sense, motor, and autonomic functions. Despite widespread experimental studies that aimed to improve nerve healing, healing results for peripheral nerve injuries are hardly reasonable. The successes of the regenerative procedure of the nerve repair in experimental research, with topical agents, can be assessed using different methods such as morphological, electrophysiological, biochemical and functional evaluation. Although, most researchers confirm that despite good microsurgical repair and topical application of these substances, complete regeneration and functional recovery of the injured nerves are almost never achieved. CONCLUSION This study aimed to make a comparison between topical pharmacological agents at the peripheral nerve lesion and methods used for evaluating the success of the repair process. For this purpose, we reviewed studies conducted on some of the most commonly used pharmacological agents as well as their properties in the repair of peripheral nerve lesions.
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Affiliation(s)
- Dheyauldeen Shabeeb
- Department of Medical Physics and Biomedical Engineering, School of Medicine, Tehran University of Medical Science, Tehran, Iran.,Department of Physiology, College of Medicine, University of Misan, Amarah, Iraq
| | - Masoud Najafi
- Radiology and Nuclear Medicine Department, School of Paramedical Sciences, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Mansor Keshavarz
- Department of Physiology, School of Medicine, Tehran University of Medical Science, Tehran, Iran
| | - Ahmed Eleojo Musa
- Department of Medical Physics and Biomedical Engineering, School of Medicine, Tehran University of Medical Science, Tehran, Iran
| | - Gholamreza Hassanzadeh
- Department of Anatomy, School of Medicine, Tehran University of Medical Science, Tehran, Iran
| | - Mohammed Reza Hadian
- Brain and Spinal Injury Repair Research Center, Tehran University of Medical Science, Tehran, Iran
| | - Alireza Shirazi
- Department of Medical Physics and Biomedical Engineering, School of Medicine, Tehran University of Medical Science, Tehran, Iran
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Najafi M, Shirazi A, Geraily G, Esfahani M, Teimouri J. Evaluation of dose profiles using Gafchromic EBT3 films in Leksell Gamma Knife 4C around inhomogeneities in the treatment of pituitary adenoma in anthropomorphic heterogeneous head phantom. Radiat Phys Chem Oxf Engl 1993 2018. [DOI: 10.1016/j.radphyschem.2018.04.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Shabeeb D, Najafi M, Hasanzadeh G, Hadian MR, Musa AE, Shirazi A. Electrophysiological measurements of diabetic peripheral neuropathy: A systematic review. Diabetes Metab Syndr 2018; 12:591-600. [PMID: 29610062 DOI: 10.1016/j.dsx.2018.03.026] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Accepted: 03/26/2018] [Indexed: 12/27/2022]
Abstract
INTRODUCTION Peripheral neuropathy is one of the main complications of diabetes mellitus. One of the features of diabetic nerve damage is abnormality of sensory and motor nerve conduction study. An electrophysiological examination can be reproduced and is also a non-invasive approach in the assessment of peripheral nerve function. Population-based and clinical studies have been conducted to validate the sensitivity of these methods. When the diagnosis was based on clinical electrophysiological examination, abnormalities were observed in all patients. METHOD In this research, using a review design, we reviewed the issue of clinical electrophysiological examination of diabetic peripheral neuropathy in articles from 2008 to 2017. For this purpose, PubMed, Scopus and Embase databases of journals were used for searching articles. RESULTS/FINDINGS The researchers indicated that diabetes (both types) is a very disturbing health issue in the modern world and should be given serious attention. Based on conducted studies, it was demonstrated that there are different procedures for prevention and treatment of diabetes-related health problems such as diabetic polyneuropathy (DPN). The first objective quantitative indication of the peripheral neuropathy is abnormality of sensory and motor nerve conduction tests. Electrophysiology is accurate, reliable and sensitive. It can be reproduced and also is a noninvasive approach in the assessment of peripheral nerve function. CONCLUSION The methodological review has found that the best method for quantitative indication of the peripheral neuropathy compared with all other methods is clinical electrophysiological examination. For best results, standard protocols such as temperature control and equipment calibration are recommended.
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Affiliation(s)
- Dheyauldeen Shabeeb
- Department of Medical Physics and Biomedical Engineering, School of Medicine, Tehran University of Medical Science, International Campus, Tehran, Iran; Department of Physiology, College of Medicine, University of Misan, Iraq; Electrophysiology Research Center, Neuroscience Institute, Tehran University of Medical Science, Tehran, Iran
| | - Masoud Najafi
- Radiology and Nuclear Medicine Department, School of Paramedical Sciences, Kermanshah University of Medical Science, Kermanshah, Iran
| | - Gholamreza Hasanzadeh
- Department of Anatomy, School of Medicine, Tehran University of Medical Science, Tehran, Iran
| | - Mohammed Reza Hadian
- Brain and Spinal Injury Repair Research Center, Tehran University of Medical Science, Tehran, Iran
| | - Ahmed Eleojio Musa
- Department of Medical Physics and Biomedical Engineering, School of Medicine, Tehran University of Medical Science, International Campus, Tehran, Iran; Research Center for Molecular and Cellular Imaging, Tehran University of Medical Science, Tehran, Iran
| | - Alireza Shirazi
- Department of Medical Physics and Biomedical Engineering, School of Medicine, Tehran University of Medical Science, International Campus, Tehran, Iran; Electrophysiology Research Center, Neuroscience Institute, Tehran University of Medical Science, Tehran, Iran.
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Jalalabadi Y, Shirazi A, Ghavam-Nasiri MR, Aledavood SA, Sardari D, Memar B, Shahidsales S, VarshoeeTabrizi F, Dehghan P, Vosughiniya H. Evaluating the expression of cyclooxygenase-2 enzyme by immunohistochemistry in normal and tumoral tissue before and after neoadjuvant chemoradiotherapy in patients with esophageal cancer in Khorasan Province. J Cancer Res Ther 2018; 14:509-515. [PMID: 29893307 DOI: 10.4103/0973-1482.199428] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background Esophageal cancer is the third most common cancer in Iran. Neoadjuvant chemoradiotherapy (NCRT) is the appropriate treatment for esophageal cancer. Aim This study investigated the expression of cyclooxygenase (COX)-2 enzyme in normal and tumoral tissues before any treatment in patients with esophageal cancer, this study also assessed the effect of NCRT on the expression of COX-2 enzyme in normal and tumoral tissue in samples derived by surgery furthermore, and this study investigated the relationship between expression of COX-2 enzyme and the pathologic tumor regression grade (PTRG) patients. Materials and Methods In this study, a total of 120 patients admitted to Omid Hospital, Imam Reza Hospitals, and Reza-Mashhad Medical Center, who were treated with NCRT, were recruited and the expression of the COX-2 enzyme in normal and tumoral tissues was assessed by immunohistochemistry before and after treatment by an expert pathologist between zero and 300. PTRG was determined by a pathologist after treatment. Results The mean levels of COX-2 expression, obtained from tumoral and normal tissue baseline biopsy in patients, were 177.69 and 64.29, respectively, while in surgical specimen were 177.25 and 49.84, respectively. A significant association was found between PTRG of surgical specimen and COX-2 expression in normal tissue (baseline biopsy) at diagnosis (P = 0.034). Conclusions The results indicated that expression of COX-2 in tumoral tissues exceeds the expression of COX-2 in normal tissue of the baseline biopsy. Patients with a high expression of COX-2 in baseline tumor biopsies had less response to treatment of pathology compared to patients with lower expression of COX-2 in baseline tumor biopsies.
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Affiliation(s)
- Yousef Jalalabadi
- Department of Medical Radiation Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Alireza Shirazi
- Department of Medical Radiation Engineering, Science and Research Branch, Islamic Azad University; Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | | | | | - Dariush Sardari
- Department of Medical Radiation Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Bahram Memar
- Cancer Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | | | - Parvane Dehghan
- Torbat Heydariyeh University of Medical Sciences, Torbat Heydariyeh, Mashhad, Iran
| | - Hassan Vosughiniya
- Department of Internal Medicine, Ghaem Hospital, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
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Najafi M, Motevaseli E, Shirazi A, Geraily G, Rezaeyan A, Norouzi F, Rezapoor S, Abdollahi H. Mechanisms of inflammatory responses to radiation and normal tissues toxicity: clinical implications. Int J Radiat Biol 2018; 94:335-356. [DOI: 10.1080/09553002.2018.1440092] [Citation(s) in RCA: 95] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Masoud Najafi
- Radiology and Nuclear Medicine Department, School of Paramedical Sciences, Kermanshah University of Medical Science, Kermanshah, Iran
| | - Elahe Motevaseli
- Department of Molecular Medicine, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Alireza Shirazi
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Ghazale Geraily
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Abolhasan Rezaeyan
- Department of Medical Physics, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Farzad Norouzi
- Science and Research Branch, Azad University, Tehran, Iran
| | - Saeed Rezapoor
- Department of Radiology, Faculty of Paramedical Sciences, Tehran University of Medical Sciences, Tehran, Iran
| | - Hamid Abdollahi
- Department of Medical Physics, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
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Geraily G, Sharafi N, Shirazi A, Esfehani M, Masoudifar M, Rajab BE. Comparison of beam hardening effect of physical and enhanced dynamic wedges at bladder inhomogeneity using EBT3 film dosimeter. J Cancer Res Ther 2018; 13:97-101. [PMID: 28508840 DOI: 10.4103/0973-1482.206244] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION Using physical wedges (PWs) to modify dose distribution and more homogeneous target coverage is a well-established technique. However, there are many problems with PWs known as beam hardening, which made them problematic. This can be overcome by dynamic wedges which do not filter beam. Comparison of physical properties of physical and enhanced dynamic wedges (EDWs) restricted to homogeneous medium. Hence, the main aim of this study is to compare dosimetric properties of physical and EDWs at bladder inhomogeneous phantom as a most common case implementing wedges. MATERIALS AND METHODS An inhomogeneous pelvic phantom with homogeneities of uterus, femur, soft tissue, rectum, and bladder was designed. Eclipse treatment planning system with the aim of bladder target was used for calculations. All dose distributions were measured with EBT3 films. RESULTS Comparison between beam profiles of physical and EDWs at wedged and nonwedged directions shows a greater difference at near inhomogeneous soft tissue interface and also at heel side of wedges. CONCLUSION Little difference observed between dose distribution of physical and EDWs shows neglectable effect of beam hardening produced by PW compared to EDW at inhomogeneous medium. Furthermore, EBT3 films present good feature to measure dose distributions at EDW fields.
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Affiliation(s)
- Ghazale Geraily
- Department of Medical Physics and Medical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Nooshin Sharafi
- Department of Medical Physics and Medical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Alireza Shirazi
- Department of Medical Physics and Medical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahbod Esfehani
- Cancer Institute, Imam Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Blookat Eftekhar Rajab
- Department of Radiotherapy, Shohada Tajrish Hospital, Shahid Beheshti University of Medical Science, Tehran, Iran
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Najafi M, Cheki M, Rezapoor S, Geraily G, Motevaseli E, Carnovale C, Clementi E, Shirazi A. Metformin: Prevention of genomic instability and cancer: A review. Mutat Res Genet Toxicol Environ Mutagen 2018; 827:1-8. [PMID: 29502733 DOI: 10.1016/j.mrgentox.2018.01.007] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Revised: 12/28/2017] [Accepted: 01/15/2018] [Indexed: 12/21/2022]
Abstract
The diabetes drug metformin can mitigate the genotoxic effects of cytotoxic agents and has been proposed to prevent or even cure certain cancers. Metformin reduces DNA damage by mechanisms that are only incompletely understood. Metformin scavenges free radicals, including reactive oxygen species and nitric oxide, which are produced by genotoxicants such as ionizing or non-ionizing radiation, heavy metals, and chemotherapeutic agents. The drug may also increase the activities of antioxidant enzymes and inhibit NADPH oxidase, cyclooxygenase-2, and inducible nitric oxide synthase, thereby limiting macrophage recruitment and inflammatory responses. Metformin stimulates the DNA damage response (DDR) in the homologous end-joining, homologous recombination, and nucleotide excision repair pathways. This review focuses on the protective properties of metformin against genomic instability.
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Affiliation(s)
- Masoud Najafi
- Radiology and Nuclear Medicine Department, School of Paramedical Sciences, Kermanshah University of Medical Science, Kermanshah, Iran
| | - Mohsen Cheki
- Department of Radiologic Technology, Faculty of Paramedicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
| | - Saeed Rezapoor
- Department of Radiology, Faculty of Paramedical, Tehran University of Medical Sciences, Tehran, Iran
| | - Ghazale Geraily
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Elahe Motevaseli
- Department of Molecular Medicine, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Carla Carnovale
- Department of Biomedical and Clinical Sciences L. Sacco, Unit of Clinical Pharmacology, ASST Fatebenefratelli-Sacco University Hospital, Università di Milano, Milan, Italy
| | - Emilio Clementi
- Scientific Institute, IRCCS E. Medea, Bosisio Parini, Lecco, Italy; Unit of Clinical Pharmacology, Department of Biomedical and Clinical Sciences, Consiglio Nazionale delle Ricerche Institute of Neuroscience, L. Sacco University Hospital, Università di Milano, Milan, Italy
| | - Alireza Shirazi
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
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Najafi M, Teimouri J, Shirazi A, Geraily G, Esfahani M, Shafaei M. Technical Note: Construction of heterogeneous head phantom for quality control in stereotactic radiosurgery. Med Phys 2017; 44:5070-5074. [PMID: 28766885 DOI: 10.1002/mp.12496] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Revised: 07/18/2017] [Accepted: 07/23/2017] [Indexed: 11/12/2022] Open
Abstract
PURPOSE Stereotactic radiosurgery is a high precision modality for conformally delivering high doses of radiation to the brain lesion with a large dose volume. Several studies for the quality control of this technique were performed to measure the dose delivered to the target with a homogenous head phantom and some dosimeters. Some studies were also performed with one or two instances of heterogeneity in the head phantom to measure the dose delivered to the target. But these studies assumed the head as a sphere and simple shape heterogeneity. The construction of an adult human head phantom with the same size, shape, and real inhomogeneity as an adult human head is needed. Only then is measuring the accurate dose delivered to the area of interest and comparison with the calculated dose possible. METHODS According to the ICRU Report 44, polytetrafluoroethylene (PTFE) and methyl methacrylate were selected as a bone and soft tissue, respectively. A set of computed tomography (CT) scans from a standard human head were taken, and simplification of the CT images was used to design the layers of the phantom. The parts of each slice were cut and attached together. Tests of density and CT number were done to compare the material of the phantom with tissues of the head. The dose delivered to the target was measured with an EBT3 film. RESULTS The density of the PTFE and Plexiglas that were inserted in the phantom are in good agreement with bone and soft tissue. Also, the CT numbers of these materials have a low difference. The dose distribution from the EBT3 film and the treatment planning system is similar. CONCLUSIONS The constructed phantom with a size and inhomogeneity like an adult human head is suitable to measure the dose delivered to the area of interest. It also helps make an accurate comparison with the calculated dose by the treatment planning system. By using this phantom, the actual dose delivered to the target was obtained. This anthropomorphic head phantom can be used in other modalities of radiosurgery as well.
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Affiliation(s)
- Mohsen Najafi
- Department of Medical Physics & Biomedical Engineering, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Alireza Shirazi
- Department of Medical Physics & Biomedical Engineering, Tehran University of Medical Sciences, Tehran, Iran
| | - Ghazale Geraily
- Department of Medical Physics & Biomedical Engineering, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahbod Esfahani
- Imam Khomeini Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Mostafa Shafaei
- Young Researchers and Elites Club, Science and Research Branch, Islamic Azad University, Tehran, Iran
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Najafi M, Shirazi A, Motevaseli E, Geraily G, Norouzi F, Heidari M, Rezapoor S. The melatonin immunomodulatory actions in radiotherapy. Biophys Rev 2017; 9:139-148. [PMID: 28510090 PMCID: PMC5425818 DOI: 10.1007/s12551-017-0256-8] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2017] [Accepted: 03/05/2017] [Indexed: 02/07/2023] Open
Abstract
Radiotherapy has a key role in cancer treatment in more than half of patients with cancer. The management of severe side effects of this treatment modality is a limiting factor to appropriate treatment. Immune system responses play a pivotal role in many of the early and late side effects of radiation. Moreover, immune cells have a significant role in tumor response to radiotherapy, such as angiogenesis and tumor growth. Melatonin as a potent antioxidant has shown appropriate immune regulatory properties that may ameliorate toxicity induced by radiation in various organs. These effects are mediated through various modulatory effects of melatonin in different levels of tissue reaction to ionizing radiation. The effects on the DNA repair system, antioxidant enzymes, immune cells, cytokines secretion, transcription factors, and protein kinases are most important. Moreover, anti-cancer properties of melatonin may increase the therapeutic ratio of radiotherapy. Clinical applications of this agent for the management of malignancies such as breast cancer have shown promising results. It seems anti-proliferative, anti-angiogenesis, and stimulation or suppression of some immune cell responses are the main anti-tumor effects of melatonin that may help to improve response of the tumor to radiotherapy. In this review, the effects of melatonin on the modulation of immune responses in both normal and tumor tissues will be discussed.
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Affiliation(s)
- M Najafi
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - A Shirazi
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
| | - E Motevaseli
- Department of Molecular Medicine, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran.
| | - Gh Geraily
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - F Norouzi
- Department of Medical Radiation Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - M Heidari
- Department of Radiology, Faculty of Paramedical, Tehran University of Medical Sciences, Tehran, Iran
| | - S Rezapoor
- Department of Radiology, Faculty of Paramedical, Tehran University of Medical Sciences, Tehran, Iran
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Molazadeh M, Zeinali A, Robatjazi M, Shirazi A, Geraily G. Dosimetric characteristics of LinaTech DMLC H multi leaf collimator: Monte Carlo simulation and experimental study. J Appl Clin Med Phys 2017; 18:113-124. [PMID: 28300380 PMCID: PMC5689964 DOI: 10.1002/acm2.12055] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Revised: 01/08/2017] [Accepted: 01/10/2017] [Indexed: 11/09/2022] Open
Abstract
This study evaluated the basic dosimetric characteristics of a Dynamic Multi Leaf Collimator (DMLC) using a diode detector and film measurements for Intensity Modulated Radiation Therapy Quality Assurance (IMRT QA). The EGSnrc Monte Carlo (MC) simulation system was used for the determination of MLC characteristics. Radiation transmission and abutting leaf leakage relevant to the LinaTech DMLC H were measured using an EDGE detector and EBT3 film. In this study, the BEAMnrc simulation code was used for modeling. The head of Siemens PRIMUS linac (6 MV) with external DMLC H was entered into a BEAMnrc Monte Carlo model using practical dosimetry data. Leaf material density, as well as interleaf and abutting air gaps were determined according to the computed and measured dose profiles. The IMRT QA field was used to evaluate the dose distribution of the simulated DMLC H. According to measurements taken with the EDGE detector and film, the total average measured leakage was 1.60 ± 0.03% and 1.57 ± 0.05%, respectively. For these measurements, abutting leaf transmission was 54.35 ± 1.85% and 53.08 ± 2.05%, respectively. To adapt the simulated leaf dose profiles with measurements, leaf material density, interleaf and abutting air gaps were adjusted to 18 g/cm3, 0.008 cm and 0.108 cm, respectively. Thus, the total average leakage was estimated to be about 1.59 ± 0.02%. The step‐and‐shoot IMRT was implemented and 94% agreement was achieved between the film and MC, using 3%‐3 mm gamma criteria. The results of this study showed that the dosimetric characteristics of DMLC H satisfied international standards.
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Affiliation(s)
- Mikaeil Molazadeh
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Ahad Zeinali
- Department of Medical Physics, Faculty of Medicine, Urmia University of Medical Science, Nazloo Campus, Urmia, Iran
| | - Mostafa Robatjazi
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Alireza Shirazi
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Ghazale Geraily
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
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Valizadeh M, Shirazi A, Izadi P, Tavakkoly Bazzaz J, Rezaeejam H. Expression Levels of Two DNA Repair-related Genes under 8 Gy Ionizing Radiation and 100 Mg/Kg Melatonin Delivery In Rat Peripheral Blood. J Biomed Phys Eng 2017; 7:27-36. [PMID: 28451577 PMCID: PMC5401131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Accepted: 02/20/2017] [Indexed: 10/26/2022]
Abstract
BACKGROUND After radiation therapy (RT), some health hazards including DNA damages may occur where melatonin can play a protective role due to free radical generation. On the other hand, serious accidental overexposures may occur during RT due to nuclear accidents which necessitate the need for study on exposure to high-dose radiations during treatments. OBJECTIVE The aim of this study was to study the expression level of two genes in non-homologous end joining (NHEJ) pathways named Xrcc4 and Xrcc6 (Ku70) in order to examine the effect of melatonin on repair of DNA double-strand breaks (BSBs) caused by 8Gy ionizing radiation. METHODS One hundred eight male Wistar rats were irradiated with a whole body gamma radiation dose of 8Gy with or without melatonin pretreatments. They were divided into six different groups of control, 100 mg/kg melatonin alone, 8Gy irradiation alone, vehicle alone, vehicle plus 8Gy irradiation and 100 mg/kg melatonin plus 8Gy irradiation. Peripheral blood samples were collected at 8, 24 and 48 h after irradiation. Ku70 and Xrcc4 gene expression were evaluated by real-time quantitative polymerase chain reaction (qPCR) technique and analyzed by one-way ANOVA test. RESULTS Expression of Ku70 and Xrcc4 genes normalized against Hprt gene showed significant difference in melatonin plus irradiation group at 8h compared to the control group (p<0.05). At 24h post irradiation, gene expression changes were significantly upregulated in irradiation-alone group as well as melatonin plus irradiation group (p<0.05). No significant change was found in any groups compared to control group at 48 h time point. CONCLUSION We concluded that, by increasing expression level of Ku70 and Xrcc4 genes, 100 mg/kg melatonin administration 8 and 24 h before 8 Gyionizing radiation can significantly affect the repair of DNA DSBs in NHEJ pathway.
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Affiliation(s)
- M. Valizadeh
- Department of Medical Physics and Biomedical Engineering, Tehran University of Medical Sciences, Tehran, Iran
| | - A. Shirazi
- Department of Medical Physics and Biomedical Engineering, Tehran University of Medical Sciences, Tehran, Iran
| | - P. Izadi
- Department of Medical Genetics, Tehran University of Medical Sciences, Tehran, Iran
| | - J. Tavakkoly Bazzaz
- Department of Medical Genetics, Tehran University of Medical Sciences, Tehran, Iran
| | - H. Rezaeejam
- Department of Radiology, Faculty of Allied Medical School, Zanjan University of Medical Sciences, Zanjan, Iran
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Ghobadi A, Shirazi A, Najafi M, Kahkesh MH, Rezapoor S. Melatonin Ameliorates Radiation-Induced Oxidative Stress at Targeted and Nontargeted Lung Tissue. J Med Phys 2017; 42:241-244. [PMID: 29296038 PMCID: PMC5744452 DOI: 10.4103/jmp.jmp_60_17] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Purpose: Radiation causes damage to irradiated tissues and also tissues that do not receive direct irradiation through a phenomenon called out-of-field effects. This damage through signals such as inflammatory responses can be transmitted to unirradiated cells/tissues and causes many effects such as oxidative damage. The radioprotective and anti-inflammatory effects of melatonin have been demonstrated in various studies. The aim of this study was to evaluate the effect of pretreatment with melatonin on oxidative damage caused by direct irradiation and out-of-field effects on the lung tissue after pelvic irradiation in rats. Materials and Methods: In this experimental study, 42 adult male Wistar albino rats were divided into seven groups (six rats per group) including control, melatonin treatment, localized irradiation to the pelvis (out-of-field group), whole-body scatter group (which gave radiation dose equal to the amount of radiation that the lung had received from the localized pelvic irradiation), direct irradiation to lung, melatonin administration before localized radiation to the pelvis, and melatonin administration before localized radiation to the lung. A 100 mg/kg of melatonin 30 min before irradiation with 5 Gy γ-rays in a local (3.75 cm × 3.75 cm) field to the lower abdomen was administered to the rats, and after 24 h, all rats were sacrificed and their lungs were excised to measure the biochemical parameters including malondialdehyde (MDA), glutathione peroxidase (GPx), and superoxide dismutase (SOD). Results: The results showed that localized irradiation to the lung or pelvis caused an increase in the MDA level. Moreover, pelvis and lung irradiation increased the GPx and SOD activity in the lungs. Pretreatment with melatonin before irradiation reduced the GPx and MDA levels in both targeted and nontargeted lung tissues and reduced the SOD activity after lung irradiation. Conclusion: Although pretreatment with melatonin did not increase the activity of SOD and GPx in comparison to the radiation groups, this study showed that preadministration of melatonin can ameliorate the oxidative damage induced by ionizing radiation.
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Affiliation(s)
- Alireza Ghobadi
- Department of Radiology, School of Paramedical, Tehran University of Medical Sciences, Tehran
| | - Alireza Shirazi
- Department of Medical Physics and Biomedical Engineering, Tehran University of Medical Sciences, Tehran
| | - Masoud Najafi
- Department of Radiology and Nuclear Medicine, School of Paramedical Sciences, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Masoud Heidari Kahkesh
- Department of Radiology, School of Paramedical, Tehran University of Medical Sciences, Tehran
| | - Saeed Rezapoor
- Department of Radiology, School of Paramedical, Tehran University of Medical Sciences, Tehran
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Rezapoor S, Shirazi A, Abbasi S, Bazzaz JT, Izadi P, Rezaeejam H, Valizadeh M, Soleimani-Mohammadi F, Najafi M. Modulation of Radiation-induced Base Excision Repair Pathway Gene Expression by Melatonin. J Med Phys 2017; 42:245-250. [PMID: 29296039 PMCID: PMC5744453 DOI: 10.4103/jmp.jmp_9_17] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Objective: Approximately 70% of all cancer patients receive radiotherapy. Although radiotherapy is effective in killing cancer cells, it has adverse effects on normal cells as well. Melatonin (MLT) as a potent antioxidant and anti-inflammatory agent has been proposed to stimulate DNA repair capacity. We investigated the capability of MLT in the modification of radiation-induced DNA damage in rat peripheral blood cells. Materials and Methods: In this experimental study, male rats (n = 162) were divided into 27 groups (n = 6 in each group) including: irradiation only, vehicle only, vehicle with irradiation, 100 mg/kg MLT alone, 100 mg/kg MLT plus irradiation in 3 different time points, and control. Subsequently, they were irradiated with a single whole-body X-ray radiation dose of 2 and 8 Gy at a dose rate of 200 MU/min. Rats were given an intraperitoneal injection of MLT or the same volume of vehicle alone 1 h prior to irradiation. Blood samples were also taken 8, 24, and 48 h postirradiation, in order to measure the 8-oxoguanine glycosylase1 (Ogg1), Apex1, and Xrcc1 expression using quantitative real-time-polymerase chain reaction. Results: Exposing to the ionizing radiation resulted in downregulation of Ogg1, Apex1, and Xrcc1 gene expression. The most obvious suppression was observed in 8 h after exposure. Pretreatments with MLT were able to upregulate these genes when compared to the irradiation-only and vehicle plus irradiation groups (P < 0.05) in all time points. Conclusion: Our results suggested that MLT in mentioned dose may result in modulation of Ogg1, Apex1, and Xrcc1 gene expression in peripheral blood cells to reduce X-ray irradiation-induced DNA damage. Therefore, administration of MLT may increase the normal tissue tolerance to radiation through enhancing the cell DNA repair capacity. We believed that MLT could play a radiation toxicity reduction role in patients who have undergone radiation treatment as a part of cancer radiotherapy.
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Affiliation(s)
- Saeed Rezapoor
- Department of Radiology, School of Allied Medical Sciences, Tehran University of Medical Sciences, Tehran, Iran
| | - Alireza Shirazi
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Sakineh Abbasi
- Medical Biotechnology, School of Allied Medical Sciences, Tehran University of Medical Sciences, Tehran, Iran
| | - Javad Tavakkoly Bazzaz
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Pantea Izadi
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Hamed Rezaeejam
- Department of Radiology, Allied Medical School, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Majid Valizadeh
- Department of Medical Physics, Faculty of Medicine, Zabol University of Medical Sciences, Zabol, Iran
| | - Farid Soleimani-Mohammadi
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Masoud Najafi
- Department of Radiology and Nuclear Medicine, School of Paramedical Sciences, Kermanshah University of Medical Sciences, Kermanshah, Iran
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Cheki M, Shirazi A, Mahmoudzadeh A, Bazzaz JT, Hosseinimehr SJ. The radioprotective effect of metformin against cytotoxicity and genotoxicity induced by ionizing radiation in cultured human blood lymphocytes. Mutat Res Genet Toxicol Environ Mutagen 2016; 809:24-32. [PMID: 27692296 DOI: 10.1016/j.mrgentox.2016.09.001] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Revised: 08/23/2016] [Accepted: 09/01/2016] [Indexed: 12/31/2022]
Abstract
Metformin is a widely prescribed drug used in the treatment of patients with type 2 diabetes. In this study, the radioprotective effect of metformin was investigated against cytotoxicity and genotoxicity induced by ionizing radiation (IR) in human peripheral blood lymphocytes. Human lymphocytes were treated with metformin at concentrations 10 and 50μM for 2h and irradiated with 6MV X-rays. The radiation antagonistic potential of metformin was assessed by MTT [3-(4,5-dimethyl-2-thiaozolyl)-2,5-diphenyl-2H tetrazolium bromide] assay, chromosomal aberration (CA) analysis, cytokinesis blocked micronucleus (CBMN) assay, and flow cytometry. Observations demonstrated a radiation-dose-dependent decrease in the percentage of cell viability after 24h. It was found that pretreatment with metformin (10 and 50μM) increased the percentage of cell viability. A highly significant dose modifying factor (DMF) 1.35 and 1.42 was observed for 10 and 50μM metformin, respectively. Metformin (10 and 50μM) pretreatment significantly decreased the frequency of dicentrics (DCs), acentric fragments (AFs), rings (RIs), micronuclei (MN), and nucleoplasmic bridges (NPBs) in irradiated human peripheral blood lymphocytes. Also, treatment with metformin (10 and 50μM) without irradiation did not increase the number of MN, NPBs, DCs, AFs, RIs, and did not show a cytostatic effect in the human peripheral blood lymphocytes. On the other hand, metformin treatment (10 and 50μM) 2h prior to irradiation significantly reduced X-radiation-induced apoptotic incidence in human lymphocytes. The present study demonstrates metformin to be an effective radioprotector against DNA damage and apoptosis induced by IR in human lymphocytes. These data have an important application for the protection of lymphocytes from the genetic damage and side-effects induced by radiotherapy in cancer patients.
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Affiliation(s)
- Mohsen Cheki
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences and Health Services, Tehran, Iran
| | - Alireza Shirazi
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences and Health Services, Tehran, Iran.
| | - Aziz Mahmoudzadeh
- Department of Biosciences and Biotechnology, Malek-Ashtar University of Technology, Tehran, Iran
| | - Javad Tavakkoly Bazzaz
- Department of Medical Genetics, Faculty of Medicine, Tehran University of Medical Sciences and Health Services, Tehran, Iran
| | - Seyed Jalal Hosseinimehr
- Department of Radiopharmacy, Faculty of Pharmacy, Pharmaceutical Sciences Research Center, Mazandaran University of Medical Sciences, Sari, Iran
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44
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Azimzadeh P, Khorram Khorshid HR, Akhondi MM, Shirazi A. Association of interleukin-16 polymorphisms with disease progression and susceptibility in endometriosis. Int J Immunogenet 2016; 43:297-302. [PMID: 27484651 DOI: 10.1111/iji.12281] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Revised: 05/09/2016] [Accepted: 05/15/2016] [Indexed: 11/28/2022]
Abstract
Interleukin-16 (IL-16) is a multifunctional pro-inflammatory cytokine that was previously found in association with complex disorders, and it is now cleared that this cytokine plays a critical role in regulation of cellular functions such as homoeostasis. Due to the complexity of endometriosis and its resemblance to cancer, we designed present case-control study to determine the effects of genetic polymorphisms of the human IL-16 gene on Iranian women's susceptibility to endometriosis. A total of 126 patients with endometriosis (stages I-IV) and 144 healthy women as control group were recruited to the study. We genotyped four single nucleotide polymorphisms of IL-16 gene (rs11556218 T>G, rs4778889 T>C, rs4072111 C>T and rs1131445 C>T). Genotyping was performed using PCR and restriction fragment length polymorphism. Our results showed that genotype distribution in two exonic polymorphisms including rs11556218 and rs4072111 was significantly different between Endometriosis patients and healthy individuals (P < 0.05). We have also found an association between rs4072111 and rs1131445 with progression to the severe stages (III-IV) of endometriosis (P < 0.05). Finally, we may conclude that IL-16 gene polymorphisms are highly associated with increased risk of endometriosis and could be considered as a susceptibility factor for endometriosis.
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Affiliation(s)
- P Azimzadeh
- Reproductive Biotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran
| | - H R Khorram Khorshid
- Reproductive Biotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran.,Genetics Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - M M Akhondi
- Reproductive Biotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran
| | - A Shirazi
- Reproductive Biotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran
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45
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Banaee N, Nedaie H, Shirazi A, Zirak A, Sadjadi S. EP-1911: Evaluating the effect of Zinc Oxide nanoparticles doped with Gadolinium on dose enhancement factor. Radiother Oncol 2016. [DOI: 10.1016/s0167-8140(16)33162-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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46
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Shirazi A, Cheki M, Mihandoost E, Mahmoudzadeh A. Prophylactic role of some plants and phytochemicals against radio-genotoxicity in human lymphocytes. J Cancer Res Ther 2016; 12:1234-1242. [DOI: 10.4103/0973-1482.172131] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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47
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Zeinali A, Zakariaee S, Molazadeh M, Takavar A, Shirazi A, Mesbahi A. Validation of a prototype optical computed tomography system. J Med Signals Sens 2015. [DOI: 10.4103/2228-7477.157621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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48
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Shirazi A, Rezaeejam H, Valizadeh M, Izadi P. Candidate gene biodosimeters of mice and human exposure to ionizing radiation by quantitative reverse transcription polymerase chain reaction. J Cancer Res Ther 2015; 11:549-57. [DOI: 10.4103/0973-1482.160912] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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49
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Zakariaee SS, Molazadeh M, Takavar A, Shirazi A, Mesbahi A, Zeinali A. Validation of a Prototype Optical Computed Tomography System. J Med Signals Sens 2015; 5:123-30. [PMID: 26120572 PMCID: PMC4460667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Accepted: 03/31/2015] [Indexed: 11/21/2022]
Abstract
In radiation cancer treatments, the most of the side effects could be minimized using a proper dosimeter. Gel dosimeter is the only three-dimensional dosimeter and magnetic resonance imaging (MRI) is the gold standard method for gel dosimeter readout. Because of hard accessibility and high cost of sample reading by MRI systems, some other alternative methods were developed. The optical computed tomography (OCT) method could be considered as the most promising alternative method that has been studied widely. In the current study, gel dosimeter scanning using a prototype optical scanner and validation of this optical scanner was performed. Optical absorbance of the irradiated gel samples was determined by both of conventional spectrophotometer and the fabricated OCT system at 632 nm. Furthermore, these irradiated vials were scanned by a 1.5 T MRI. The slope of the curves was extracted as the dose-response sensitivity. The R2-dose sensitivity measured by MRI method was 0.1904 and 0.113 for NIPAM and PAGAT gels, respectively. The optical dose sensitivity obtained by conventional spectrophotometer and the fabricated optical scanner was 0.0453 and 0.0442 for NIPAM gels and 0.0244 and 0.0242 for PAGAT gels, respectively. The scanning results of the absorbed dose values showed that the new OCT and conventional spectrophotometer were in fair agreement. From the results, it could be concluded that the fabricated system is able to quantize the absorbed dose values in polymer gel samples with acceptable accuracy.
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Affiliation(s)
- Seyed Salman Zakariaee
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mikaeil Molazadeh
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Abbas Takavar
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Alireza Shirazi
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Asghar Mesbahi
- Department of Medical Physics, Medical School, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ahad Zeinali
- Department of Medical Physics, Faculty of Medicine, Urmia Medical Sciences University, Urmia, Iran,Address for correspondence: Dr. Ahad Zeinali, Department of Medical Physics, Faculty of Medicine, Urmia Medical Sciences University, Urmia, Iran. E-mail:
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50
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Mirzaei H, Shirazi A, Tabatabaie F, Ghazi-Khansari M. Comparing the impact of melatonin and captopril on early effects of radiation on the heart tissue by studying glutathione, malondialdehyde, and lactate dehydrogenase enzyme activity in rats. Radiat Prot Environ 2015. [DOI: 10.4103/0972-0464.169379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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