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Khorshidi F, Majdalany B, Peters G, Tran A, Shaikh J, Liddell R, Perez Lozada J, Kokabi N, Nezami N. MINIMALLY INVASIVE TREATMENT OF ABDOMINAL LYMPHOCELE: A REVIEW OF CONTEMPORARY OPTIONS AND HOW TO APPROACH THEM. Lymphology 2021. [DOI: 10.2458/lymph.4727] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Lymphoceles are lymphatic fluid collections resulting from lymphatic vessel disruption after surgery or trauma. They are most often described following retroperitoneal surgeries such as cystectomies, prostatectomies, renal transplants, and gynecologic surgeries. Most lymphoceles are asymptomatic and resolve spontaneously without treatment. If persistent, they can become infected or exert mass effect on adjacent structures causing pain, urinary, or lower limb edema particularly for lymphoceles in the pelvis Symptomatic lymphoceles should be treated to relieve symptoms and prevent functional compromise of vital adjacent structures. Although surgery has been traditionally accepted as the gold standard treatment, advances in imaging and interventional technology allow for less invasive, percutaneous treatment. Available minimally invasive treatment options include percutaneous aspiration, catheter drainage, sclerotherapy, and lymphangiography with lymphatic embolization. A review of these treatment options and a suggested algorithm for managing lymphoceles is presented.
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Rahmatpour Rokni G, Shiran M, Abounoori M, Houshmand G, Babakhanian M, Godazandeh G, Bayat S, Pazyar N, Abedi M, Khorshidi F, Yari F, Ghafouri Z, Patil A, Goldust M, Mirmohammadi Langari L. Effects of metformin on autoimmune immunoglobins and interferon-γ in patients with early diagnosed pemphigus vulgaris: a prospective clinical trial. Clin Exp Dermatol 2021; 47:110-113. [PMID: 34236726 DOI: 10.1111/ced.14832] [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] [Received: 06/14/2021] [Revised: 06/30/2021] [Accepted: 07/02/2021] [Indexed: 11/27/2022]
Abstract
The management of pemphigus vulgaris (PV) is challenging. This study aimed to evaluate the immunomodulating effects of metformin on PV. The study was conducted in two phases: in the first phase, patients received routine first-line treatment (prednisolone plus azathioprine) for 2 months, then in the second phase, metformin was added to this regimen for another 2 months. After addition of metformin to the first-line medications, significant reductions were seen in serum IgG1 (reduced from 534.92 ± 134.83 mg/dL to 481.58 ± 130.46 mg/dL, P < 0.001), IgG4 (51.83 ± 27.26 mg/dL to 44.50 ± 26.05 mg/dL, P < 0.001) and interferon-γ (277.99 ± 108.71 pg/mL to 45.05 ± 17.080 pg/mL, P = 0.03) concentrations. The suppressant effect of metformin was greatest on IgG4 (coefficient of variation 1.28), the dominant subclass of IgG involved in PV. Metformin could have immunomodulating effects on PV with controlling effects on steroid complications.
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Affiliation(s)
- G Rahmatpour Rokni
- Department of Dermatology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - M Shiran
- Department of Pharmacology, Immuno-Genetics Research Center, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - M Abounoori
- Student Research Committee, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - G Houshmand
- Immunogenetics Research Center, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - M Babakhanian
- Social Determinants of Health Research Center, Semnan University of Medical Sciences, Semnan, Iran
| | - G Godazandeh
- Department of Thoracic Surgery, Imam Khomeini Hospital, Mazandaran University of Medical Sciences, Sari, Iran
| | - S Bayat
- Student Research Committee, Department of Internal Medicine, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - N Pazyar
- Department of Dermatology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - M Abedi
- Faculty of Medicine, Azad University of Mazandaran, Sari, Iran
| | - F Khorshidi
- Faculty of Medicine, Azad University of Mazandaran, Sari, Iran
| | - F Yari
- Student Research Committee, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Z Ghafouri
- College of Kinesiology, University of Saskatchewan, Saskatoon, SK, Canada
| | - A Patil
- Department of Pharmacology, Dr DY Patil Medical College, Navi Mumbai, India
| | - M Goldust
- Department of Dermatology, University Medical Center Mainz, Mainz, Germany
| | - L Mirmohammadi Langari
- Microbial Resistance Research Center, Mazandaran University of Medical Sciences, Sari, Iran
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Mollaei M, Hassan ZM, Khorshidi F, Langroudi L. Chemotherapeutic drugs: Cell death- and resistance-related signaling pathways. Are they really as smart as the tumor cells? Transl Oncol 2021; 14:101056. [PMID: 33684837 PMCID: PMC7938256 DOI: 10.1016/j.tranon.2021.101056] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [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] [Received: 12/23/2020] [Revised: 02/05/2021] [Accepted: 02/22/2021] [Indexed: 02/07/2023] Open
Abstract
Chemotherapeutic drugs kill cancer cells or control their progression all over the patient's body, while radiation- and surgery-based treatments perform in a particular site. Based on their mechanisms of action, they are classified into different groups, including alkylating substrates, antimetabolite agents, anti-tumor antibiotics, inhibitors of topoisomerase I and II, mitotic inhibitors, and finally, corticosteroids. Although chemotherapeutic drugs have brought about more life expectancy, two major and severe complications during chemotherapy are chemoresistance and tumor relapse. Therefore, we aimed to review the underlying intracellular signaling pathways involved in cell death and resistance in different chemotherapeutic drug families to clarify the shortcomings in the conventional single chemotherapy applications. Moreover, we have summarized the current combination chemotherapy applications, including numerous combined-, and encapsulated-combined-chemotherapeutic drugs. We further discussed the possibilities and applications of precision medicine, machine learning, next-generation sequencing (NGS), and whole-exome sequencing (WES) in promoting cancer immunotherapies. Finally, some of the recent clinical trials concerning the application of immunotherapies and combination chemotherapies were included as well, in order to provide a practical perspective toward the future of therapies in cancer cases.
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Affiliation(s)
- Mojtaba Mollaei
- Department of Immunology, School of Medicine, Tarbiat Modares University, Tehran, Iran.
| | | | - Fatemeh Khorshidi
- Department of Immunology, School of Medicine, Tarbiat Modares University, Tehran, Iran; Department of Immunology, Pasteur Institute of Iran, Tehran, Iran
| | - Ladan Langroudi
- Department of Immunology, School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
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Khorshidi F, Poljak A, Liu Y, Lo JW, Crawford JD, Sachdev PS. Resveratrol: A "miracle" drug in neuropsychiatry or a cognitive enhancer for mice only? A systematic review and meta-analysis. Ageing Res Rev 2021; 65:101199. [PMID: 33303422 DOI: 10.1016/j.arr.2020.101199] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [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: 02/03/2020] [Revised: 09/07/2020] [Accepted: 10/17/2020] [Indexed: 12/14/2022]
Abstract
BACKGROUND Over the last decade resveratrol has been trialled for the prevention and treatment of cognitive decline; however, the results have shown a conflict between human studies compared with animal studies, especially on cognition, blood pressure, neuroimaging, and mood. METHODS Human clinical trials and animal studies published prior to January 2020, were identified searching across major electronic databases. PRISMA guidelines were used for data extraction, which was independently performed by two authors. Pooled standard mean difference (SMD, random effect model) and odds ratios (ORs) were calculated. RESULTS Most publications on animal models reported positive outcomes on cognition and brain function following exposure to resveratrol or grape seed extracts. By contrast, 11 meta-analyses of data from human placebo vs resveratrol, grape or wine treatment trials identified no statistically significant effect on a variety of measures, including cognitive and mood assessments, grey matter volume and blood pressure. CONCLUSIONS Based on currently available data, the promising effects of resveratrol in animal models is not replicated in human clinical trials. The effects, if any, of resveratrol on human cognition are likely to be small. This work may be useful for the design and implementation of future pre-clinical and clinical studies using resveratrol in a neurological setting.
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Affiliation(s)
- Fatemeh Khorshidi
- Centre for Healthy Brain Ageing (CHeBA), School of Psychiatry, University of New South Wales, Sydney, Australia
| | - Anne Poljak
- Centre for Healthy Brain Ageing (CHeBA), School of Psychiatry, University of New South Wales, Sydney, Australia; Mark Wainwright Analytical Centre, Bioanalytical Mass Spectrometry Facility, University of New South Wales, Sydney, Australia; School of Psychiatry, University of New South Wales, Sydney, Australia
| | - Yue Liu
- Centre for Healthy Brain Ageing (CHeBA), School of Psychiatry, University of New South Wales, Sydney, Australia
| | - Jessica W Lo
- Centre for Healthy Brain Ageing (CHeBA), School of Psychiatry, University of New South Wales, Sydney, Australia
| | - John D Crawford
- Centre for Healthy Brain Ageing (CHeBA), School of Psychiatry, University of New South Wales, Sydney, Australia
| | - Perminder Singh Sachdev
- Centre for Healthy Brain Ageing (CHeBA), School of Psychiatry, University of New South Wales, Sydney, Australia; Neuropsychiatric Institute, Euroa Centre, Prince of Wales Hospital, Sydney, Australia.
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Khorshidi F, Majdalany BS, Peters G, Tran AN, Shaikh J, Liddell RP, Perez Lozada JC, Kokabi N, Nezami N. Minimally invasive treatment of abdominal lymphocele: A review of contemporary options and how to approach them. Lymphology 2021; 54:56-67. [PMID: 34735751] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Lymphoceles are lymphatic fluid collections resulting from lymphatic vessel disruption after surgery or trauma. They are most often described following retroperitoneal surgeries such as cystectomies, prostatectomies, renal transplants, and gynecologic surgeries. Most lymphoceles are asymptomatic and resolve spontaneously without treatment. If persistent, they can become infected or exert mass effect on adjacent structures causing pain, urinary, or lower limb edema particularly for lymphoceles in the pelvis Symptomatic lymphoceles should be treated to relieve symptoms and prevent functional compromise of vital adjacent structures. Although surgery has been traditionally accepted as the gold standard treatment, advances in imaging and interventional technology allow for less invasive, percutaneous treatment. Available minimally invasive treatment options include percutaneous aspiration, catheter drainage, sclerotherapy, and lymphangiography with lymphatic embolization. A review of these treatment options and a suggested algorithm for managing lymphoceles is presented.
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Affiliation(s)
- F Khorshidi
- Department of Radiology, Tabriz University of Medical Sciences, Tabriz, Iran
| | - B S Majdalany
- Division of Interventional Radiology and Image-Guided Medicine, Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, GA, USA
| | - G Peters
- Division of Interventional Radiology and Image-Guided Medicine, Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, GA, USA
| | - A N Tran
- Division of Interventional Radiology and Image-Guided Medicine, Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, GA, USA
| | - J Shaikh
- Division of Interventional Radiology and Image-Guided Medicine, Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, GA, USA
| | - R P Liddell
- Division of Vascular and Interventional Radiology, The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins Medical Institutions, Baltimore, MD, USA
| | - J C Perez Lozada
- Section of Vascular and Interventional Radiology, Department of Radiology and Biomedical Imaging, Yale University School of Medicine, New Haven, CT, USA
| | - N Kokabi
- Division of Interventional Radiology and Image-Guided Medicine, Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, GA, USA
| | - N Nezami
- Division of Interventional Radiology and Image-Guided Medicine, Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, GA, USA
- Division of Vascular and Interventional Radiology, Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, Baltimore, MD, USA
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Khorshidi F, Hajizadeh S, Choobineh H, Alizadeh S, Sharifi MJ, Kavosh Z, Omidkhoda A. Determining the association of thrombophilic gene polymorphisms with recurrent pregnancy loss in Iranian women. Gynecol Endocrinol 2020; 36:1082-1085. [PMID: 32496885 DOI: 10.1080/09513590.2020.1769060] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
Abstract
OBJECTIVE Thrombophilia is known to be associated with poor pregnancy outcomes. In this study, three thrombophilic gene polymorphisms, including EPCR (Ser219Gly), F11 (rs4253417) and F7 (323 Ins10) were investigated in an Iranian population of women in order to determine the correlation between thrombophilia and recurrent pregnancy loss (RPL). METHODS Polymerase chain reaction and restriction fragment length polymorphism (PCR-RFLP) were used to evaluate the frequency of three candidate thrombophilic risk factors for recurrent pregnancy loss. The frequencies of the polymorphisms were compared between the case (144 patients with a history of at least two miscarriages) and the control (150 healthy women with no abortion) group. RESULTS Our results show that EPCR and FVII polymorphisms of the patient and control group have the same genotype frequency, and the difference is not statistically significant (p-value > .05). Regarding FXI polymorphism, TT genotype frequency was higher in the patient group than the control group (p-value < .05); however, CT heterozygote form was higher in the control group compared to the patient group (p-value < .05). CONCLUSION In FXI polymorphism, T allele is possibly an RPL risk factor and C allele has a protective role. Thus, wild type FXI could be related to RPL, but EPCR and FVII polymorphism have no such correlation.
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Affiliation(s)
- Fatemeh Khorshidi
- Department of Immunology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Sonia Hajizadeh
- Hematology and Blood Banking Department, Allied School of Medical Sciences, Tehran University of Medical Sciences, Tehran, Iran
| | - Hamid Choobineh
- Laboratory Science Department, Allied School of Medical Sciences, Tehran University of Medical Sciences, Tehran, Iran
| | - Shaban Alizadeh
- Hematology and Blood Banking Department, Allied School of Medical Sciences, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Zeinab Kavosh
- Hematology and Blood Banking Department, Allied School of Medical Sciences, Tehran University of Medical Sciences, Tehran, Iran
| | - Azadeh Omidkhoda
- Hematology and Blood Banking Department, Allied School of Medical Sciences, Tehran University of Medical Sciences, Tehran, Iran
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Khorshidi F, Poljak A, Jayasena T, Sachdev PS. Hormetic effects of alcohol in an astroglial cellular model and its proteomics signature. Alzheimers Dement 2020. [DOI: 10.1002/alz.041665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Fatemeh Khorshidi
- School of Medical Sciences University of New South Wales Sydney/Randwick Australia
- Centre for Healthy Brain Ageing (CHeBA), School of Psychiatry University of New South Wales Sydney Australia
| | - Anne Poljak
- School of Medical Sciences University of New South Wales Kensington Australia
- Centre for Healthy Brain Ageing (CheBA) School of Psychiatry Kensington Australia
- Mark Wainwright Analytical Centre, Bioanalytical Mass Spectrometry Facility Kensington Australia
| | - Tharusha Jayasena
- Centre for Healthy Brain Ageing (CheBA) School of Psychiatry Kensington Australia
| | - Perminder S. Sachdev
- Neuropsychiatric Institute (NPI) Euroa Centre, Prince of Wales Hospital Sydney Australia
- Centre for Healthy Brain Ageing (CHeBA) University of New South Wales (UNSW) Sydney Sydney Australia
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Braidy N, Berg J, Clement J, Khorshidi F, Poljak A, Jayasena T, Grant R, Sachdev P. Role of Nicotinamide Adenine Dinucleotide and Related Precursors as Therapeutic Targets for Age-Related Degenerative Diseases: Rationale, Biochemistry, Pharmacokinetics, and Outcomes. Antioxid Redox Signal 2019; 30:251-294. [PMID: 29634344 PMCID: PMC6277084 DOI: 10.1089/ars.2017.7269] [Citation(s) in RCA: 128] [Impact Index Per Article: 25.6] [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: 07/06/2017] [Revised: 02/22/2018] [Accepted: 02/22/2018] [Indexed: 12/20/2022]
Abstract
Significance: Nicotinamide adenine dinucleotide (NAD+) is an essential pyridine nucleotide that serves as an essential cofactor and substrate for a number of critical cellular processes involved in oxidative phosphorylation and ATP production, DNA repair, epigenetically modulated gene expression, intracellular calcium signaling, and immunological functions. NAD+ depletion may occur in response to either excessive DNA damage due to free radical or ultraviolet attack, resulting in significant poly(ADP-ribose) polymerase (PARP) activation and a high turnover and subsequent depletion of NAD+, and/or chronic immune activation and inflammatory cytokine production resulting in accelerated CD38 activity and decline in NAD+ levels. Recent studies have shown that enhancing NAD+ levels can profoundly reduce oxidative cell damage in catabolic tissue, including the brain. Therefore, promotion of intracellular NAD+ anabolism represents a promising therapeutic strategy for age-associated degenerative diseases in general, and is essential to the effective realization of multiple benefits of healthy sirtuin activity. The kynurenine pathway represents the de novo NAD+ synthesis pathway in mammalian cells. NAD+ can also be produced by the NAD+ salvage pathway. Recent Advances: In this review, we describe and discuss recent insights regarding the efficacy and benefits of the NAD+ precursors, nicotinamide (NAM), nicotinic acid (NA), nicotinamide riboside (NR), and nicotinamide mononucleotide (NMN), in attenuating NAD+ decline in degenerative disease states and physiological aging. Critical Issues: Results obtained in recent years have shown that NAD+ precursors can play important protective roles in several diseases. However, in some cases, these precursors may vary in their ability to enhance NAD+ synthesis via their location in the NAD+ anabolic pathway. Increased synthesis of NAD+ promotes protective cell responses, further demonstrating that NAD+ is a regulatory molecule associated with several biochemical pathways. Future Directions: In the next few years, the refinement of personalized therapy for the use of NAD+ precursors and improved detection methodologies allowing the administration of specific NAD+ precursors in the context of patients' NAD+ levels will lead to a better understanding of the therapeutic role of NAD+ precursors in human diseases.
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Affiliation(s)
- Nady Braidy
- Centre for Healthy Brain Ageing, School of Psychiatry, University of New South Wales, Sydney, Australia
| | - Jade Berg
- Australasian Research Institute, Sydney Adventist Hospital, Sydney, Australia
| | | | - Fatemeh Khorshidi
- Centre for Healthy Brain Ageing, School of Psychiatry, University of New South Wales, Sydney, Australia
| | - Anne Poljak
- Mark Wainwright Analytical Centre, University of New South Wales, Sydney, Australia
- School of Medical Sciences, University of New South Wales, Sydney, Australia
| | - Tharusha Jayasena
- Centre for Healthy Brain Ageing, School of Psychiatry, University of New South Wales, Sydney, Australia
| | - Ross Grant
- Australasian Research Institute, Sydney Adventist Hospital, Sydney, Australia
- School of Medical Sciences, University of New South Wales, Sydney, Australia
- Sydney Medical School, University of Sydney, Sydney, Australia
| | - Perminder Sachdev
- Centre for Healthy Brain Ageing, School of Psychiatry, University of New South Wales, Sydney, Australia
- Neuropsychiatric Institute, Euroa Centre, Prince of Wales Hospital, Sydney, Australia
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Larki P, Gharib E, Yaghoob Taleghani M, Khorshidi F, Nazemalhosseini-Mojarad E, Asadzadeh Aghdaei H. Coexistence of KRAS and BRAF Mutations in Colorectal Cancer: A Case Report Supporting The Concept of Tumoral Heterogeneity. Cell J 2017; 19:113-117. [PMID: 28580315 PMCID: PMC5448326 DOI: 10.22074/cellj.2017.5123] [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] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/11/2017] [Accepted: 03/13/2017] [Indexed: 12/24/2022]
Abstract
The detection of KRAS and BRAF mutations is a crucial step for the correct therapeutic approach and predicting the epidermal growth factor receptor (EGFR)-targeted therapy resistance of colorectal carcinomas. The concomitant KRAS and BRAF mutations occur rarely in the colorectal cancers (CRCs) with the prevalence of less than 0.001% of the cases. In patients with KRAS-mutant tumors, BRAF mutations should not regularly be tested unless the patient is participating in a clinical trial enriching for the presence of KRAS or BRAF-mutated tumor. The current report demonstrates a case with advanced adenocarcinoma of the colon showing the coexistence of KRAS and BRAF mutations and may have profound clinical implications for disease progression and therapeutic responses.
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Affiliation(s)
- Pegah Larki
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ehsan Gharib
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Yaghoob Taleghani
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Fatemeh Khorshidi
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ehsan Nazemalhosseini-Mojarad
- Gastroenterology and Liver Disease Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hamid Asadzadeh Aghdaei
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Bahreyni Toosi M, Mohamadian N, Ghorbani M, Khorshidi F, Akbari F, Knaup C. Skin Dosimetry in Radiotherapy of Breast Cancer: a Comparison between EBT and EBT3 Radiochromic Films. J Biomed Phys Eng 2016; 6:51-60. [PMID: 27672625 PMCID: PMC5022755] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2015] [Accepted: 08/30/2015] [Indexed: 06/06/2023]
Abstract
OBJECTIVE Radiochromic EBT3 film is a later generation of radiochromic films. The aim of this study is to compare EBT and EBT3 radiochromic films in radiotherapy fields of breast cancer. METHODS A RANDO phantom was irradiated by a 6 MV Siemens Primus linac with medial and lateral fields of radiotherapy of breast cancer. Dosimetry was performed in various points in the fields using EBT and EBT3 films. Films were scanned by a Microtek color scanner. Dose values from two films in corresponding points were compared. RESULTS In the investigation of calibration, net optical density (NOD) of EBT radiochromic is more than the EBT3 radiochromic film. The highest percentage difference between NODs of two films is related to 0.75 Gy and equals to 14.19%. The lowest value is related to 0.2 Gy dose and is equal to 3.31%. The highest percentage difference between two films on the RANDO phantom in breast cancer fields is 13.51% and the minimum value is equal to 0.33%. CONCLUSION From the comparison between the two films, most of the points show differences in dose in the measurements in fields of breast cancer radiotherapy. These differences are attributed to the thickness of the active layers, the overall thickness of the films, and the difference in the calibration fitted functions. The advantage of EBT film over EBT3 is a higher sensitivity; on the other hand EBT3 film allows to use its both sides in the scanning process and it is a new version of this film type.
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Affiliation(s)
- M.T. Bahreyni Toosi
- Medical Physics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - N. Mohamadian
- Medical Physics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - M. Ghorbani
- Medical Physics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - F. Khorshidi
- Medical Physics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - F. Akbari
- Medical Physics Department, Reza Radiation Oncology Center, Mashhad, Iran
| | - C. Knaup
- Comprehensive Cancer Centers of Nevada, Las Vegas, NV, USA
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11
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Bahreyni Toossi M, Khorshidi F, Ghorbani M, Mohamadian N, Davenport D. Comparison of EBT and EBT3 RadioChromic Film Usage in Parotid Cancer Radiotherapy. J Biomed Phys Eng 2016; 6:1-12. [PMID: 27026949 PMCID: PMC4795323] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Accepted: 06/12/2015] [Indexed: 06/05/2023]
Abstract
BACKGROUND EBT and EBT3 radioChromic films have been used in radiotherapy dosimetry for years. OBJECTIVE The aim of the current study is to compare EBT and EBT3 radioChromic films in dosimetry of radiotherapy fields for treatment of parotid cancer. METHODS Calibrations of EBT and EBT3 films were performed with identical setups using a 6 MV photon beam of a Siemens Primus linac. Skin dose was measured at different points in the right anterior oblique (RAO) and right posterior oblique (RPO) fields by EBT and EBT3 films on a RANDO phantom. RESULTS While dosimetry was performed with the same conditions for the two film types for calibration and in phantom in parotid cancer radiotherapy, the measured net optical density (NOD) in EBT film was found to be higher than that from EBT3 film. The minimum difference between these two films under calibration conditions was about 2.9% (for 0.2 Gy) with a maximum difference of 35.5% (for 0.5 Gy). In the therapeutic fields of parotid cancer radiotherapy at different points, the measured dose from EBT film was higher than the EBT3 film. In these fields the minimum and maximum measured dose differences were 16.0% and 25.5%, respectively. CONCLUSION EBT film demonstrates higher NOD than EBT3 film. This effect may be related to the higher sensitivity of EBT film over EBT3 film. However, the obtained dose differences between these two films in low dose range can be due to the differences in fitting functions applied following the calibration process.
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Affiliation(s)
- M.T. Bahreyni Toossi
- Medical Physics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - F. Khorshidi
- Medical Physics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - M. Ghorbani
- Medical Physics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - N. Mohamadian
- Medical Physics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - D. Davenport
- Comprehensive Cancer Centers of Nevada, Las Vegas, Nevada, USA
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12
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Khorshidi F, Haghighi MM, Nazemalhosseini Mojarad E, Azimzadeh P, Damavand B, Vahedi M, Almasi S, Aghdaei HA, Zali MR. The prostaglandin synthase 2/cyclooxygenase 2 (PTGS2/ COX2) rs5277 polymorphism does not influence risk of colorectal cancer in an Iranian population. Asian Pac J Cancer Prev 2015; 15:3507-11. [PMID: 24870748 DOI: 10.7314/apjcp.2014.15.8.3507] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The prostaglandin-endoperoxide synthase 2 [PTGS2, commonly known as cyclooxygenase-2 (COX-2)] is an enzyme induced by proinflammatory stimuli that is often overexpressed in malignant tissue and involved in the synthesis of prostaglandins and thromboxanes, regulators of processes such as inflammation, cell proliferation, and angiogenesis, all relevant for cancer development. We investigated whether a functional genetic polymorphism, rs5277, in COX-2 may have a risk-modifying effect on sporadic colorectal cancer in an Iranian population. MATERIALS AND METHODS We conducted a case-control study on 167 patients with colorectal cancer and 197 cancer-free controls in Taleghani Hospital in Tehran, Iran, between 2007 and 2011. Peripheral blood samples of both groups were processed for DNA extraction and genotyping of the COX-2 gene polymorphism (rs5277) using PCR-RFLP. RFLP results were confirmed by direct sequencing. Logistic regression analysis was performed to calculate the adjusted odds ratio (OR) and 95% confidence interval (95% CI). RESULTS There was no significant difference in the distribution of COX-2 gene rs5277 polymorphism genotype and the allelic form, among CRC patients compared with the healthy control group (p: 0.867). CONCLUSIONS Our results suggest that rs5277 polymorphism in COX2 could not be a good prognostic indicator for patients with CRC.
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Affiliation(s)
- Fatemeh Khorshidi
- Gastroenterology and Liver Diseases Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran E-mail :
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Khorshidi F, Mohebbi SR, Haghighi MM, Taleghani MY, Azimzadeh P, Golmohammadi M, Alidadi M, Romani S, Vahedi M, Mojarad EN, Zali MR. Polymorphism −765G>C in Cyclooxygenase-2 and Risk of Colorectal Cancer. Lab Med 2013. [DOI: 10.1309/lmvax2qhhibwy1h7] [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: 10/23/2022] Open
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