1
|
Zahra N, Rafique S, Naveed Z, Nadeem J, Waqas M, Ali A, Shah M, Idrees M. Regulatory pathways and therapeutic potential of PDE4 in liver pathophysiology. Life Sci 2024; 345:122565. [PMID: 38521388 DOI: 10.1016/j.lfs.2024.122565] [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] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 03/11/2024] [Accepted: 03/13/2024] [Indexed: 03/25/2024]
Abstract
Phosphodiesterase 4 (PDE4), crucial in regulating the cyclic adenosine monophosphate (cAMP) signaling pathway, significantly impacts liver pathophysiology. This article highlights the comprehensive effects of PDE4 on liver health and disease, and its potential as a therapeutic agent. PDE4's role in degrading cAMP disrupts intracellular signaling, increasing pro-inflammatory cytokines like tumor necrosis factor-alpha (TNF-α) and interleukin-6 (IL-6). This contributes to liver inflammation in conditions such as hepatitis and non-alcoholic steatohepatitis (NASH). Additionally, PDE4 is a key factor in liver fibrosis, characterized by excessive extracellular matrix deposition. Inhibiting PDE4 shows promise in reducing liver fibrosis by decreasing the activation of hepatic stellate cells, which is pivotal in fibrogenesis. PDE4 also influences hepatocyte apoptosis a common feature of liver diseases. PDE4 inhibitors protect against hepatocyte apoptosis by raising intracellular cAMP levels, thus activating anti-apoptotic pathways. This suggests potential in targeting PDE4 to prevent hepatocyte loss. Moreover, PDE4 regulates hepatic glucose production and lipid metabolism, essential for liver function. Altering cAMP levels through PDE4 affects enzymes in these metabolic pathways, making PDE4 a target for metabolic disorders like type 2 diabetes and non-alcoholic fatty liver disease (NAFLD). Since PDE4 plays a multifaceted role in liver pathophysiology, influencing PDE4's mechanisms in liver diseases could lead to novel therapeutic strategies. Still, extensive research is required to explore the molecular mechanisms and clinical potential of targeting PDE4 in liver pathologies.
Collapse
Affiliation(s)
- Noureen Zahra
- National Centre of Excellence in Molecular Biology (CEMB), University of the Punjab, Lahore, Pakistan
| | - Shazia Rafique
- National Centre of Excellence in Molecular Biology (CEMB), University of the Punjab, Lahore, Pakistan.
| | - Zoya Naveed
- National Centre of Excellence in Molecular Biology (CEMB), University of the Punjab, Lahore, Pakistan
| | - Jannat Nadeem
- National Centre of Excellence in Molecular Biology (CEMB), University of the Punjab, Lahore, Pakistan
| | - Muhammad Waqas
- Department of Biotechnology and Genetic Engineering, Hazara University Mansehra, Pakistan
| | - Amjad Ali
- Department of Biotechnology and Genetic Engineering, Hazara University Mansehra, Pakistan
| | - Masaud Shah
- Department of Physiology Ajou University, South Korea
| | - Muhammad Idrees
- National Centre of Excellence in Molecular Biology (CEMB), University of the Punjab, Lahore, Pakistan
| |
Collapse
|
2
|
Hafeez MB, Zahra N, Ahmad N, Shi Z, Raza A, Wang X, Li J. Growth, physiological, biochemical and molecular changes in plants induced by magnetic fields: A review. Plant Biol (Stuttg) 2023; 25:8-23. [PMID: 35929950 DOI: 10.1111/plb.13459] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [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: 05/14/2022] [Accepted: 07/27/2022] [Indexed: 06/15/2023]
Abstract
The Earth's geomagnetic field (GMF) is an inescapable environmental factor for plants that affects all growth and yield parameters. Both strong and weak magnetic fields (MF), as compared to the GMF, have specific roles in plant growth and development. MF technology is an eco-friendly technique that does not emit waste or generate harmful radiation, nor require any external power supply, so it can be used in sustainable modern agriculture. Thus, exposure of plants to MF is a potential affordable, reusable and safe practice for enhancing crop productivity by changing physiological and biochemical processes. However, the effect of MF on plant physiological and biochemical processes is not yet well understood. This review describes the effects of altering MF conditions (higher or lower values than the GMF) on physiological and biochemical processes of plants. The current contradictory and inconsistent outcomes from studies on varying effects of MF on plants could be related to species and/or MF exposure time and intensity. The reviewed literature suggests MF have a role in changing physiological processes, such as respiration, photosynthesis, nutrient uptake, water relations and biochemical attributes, including genes involved in ROS, antioxidants, enzymes, proteins and secondary metabolites. MF application might efficiently increase growth and yield of many crops, and as such, should be the focus for future research.
Collapse
Affiliation(s)
- M B Hafeez
- College of Agronomy, Northwest A&F University, Yangling, China
| | - N Zahra
- Department of Botany, University of Agriculture, Faisalabad, Pakistan
| | - N Ahmad
- College of Agronomy, Northwest A&F University, Yangling, China
| | - Z Shi
- College of Agronomy, Northwest A&F University, Yangling, China
| | - A Raza
- College of Agriculture, Oil Crops Research Institute, Fujian Agriculture and Forestry University (FAFU), Fuzhou, China
| | - X Wang
- College of Agronomy, Northwest A&F University, Yangling, China
| | - J Li
- College of Agronomy, Northwest A&F University, Yangling, China
| |
Collapse
|
3
|
Raza A, Tabassum J, Mubarik MS, Anwar S, Zahra N, Sharif Y, Hafeez MB, Zhang C, Corpas FJ, Chen H. Hydrogen sulfide: an emerging component against abiotic stress in plants. Plant Biol (Stuttg) 2022; 24:540-558. [PMID: 34870354 DOI: 10.1111/plb.13368] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [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: 08/23/2021] [Accepted: 11/04/2021] [Indexed: 05/05/2023]
Abstract
As a result of climate change, abiotic stresses are the most common cause of crop losses worldwide. Abiotic stresses significantly impair plants' physiological, biochemical, molecular and cellular mechanisms, limiting crop productivity under adverse climate conditions. However, plants can implement essential mechanisms against abiotic stressors to maintain their growth and persistence under such stressful environments. In nature, plants have developed several adaptations and defence mechanisms to mitigate abiotic stress. Moreover, recent research has revealed that signalling molecules like hydrogen sulfide (H2 S) play a crucial role in mitigating the adverse effects of environmental stresses in plants by implementing several physiological and biochemical mechanisms. Mainly, H2 S helps to implement antioxidant defence systems, and interacts with other molecules like nitric oxide (NO), reactive oxygen species (ROS), phytohormones, etc. These molecules are well-known as the key players that moderate the adverse effects of abiotic stresses. Currently, little progress has been made in understanding the molecular basis of the protective role of H2 S; however, it is imperative to understand the molecular basis using the state-of-the-art CRISPR-Cas gene-editing tool. Subsequently, genetic engineering could provide a promising approach to unravelling the molecular basis of stress tolerance mediated by exogenous/endogenous H2 S. Here, we review recent advances in understanding the beneficial roles of H2 S in conferring multiple abiotic stress tolerance in plants. Further, we also discuss the interaction and crosstalk between H2 S and other signal molecules; as well as highlighting some genetic engineering-based current and future directions.
Collapse
Affiliation(s)
- A Raza
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, Center of Legume Crop Genetics and Systems Biology/College of Agriculture, Oil Crops Research Institute, Fujian Agriculture and Forestry University (FAFU), Fuzhou, China
| | - J Tabassum
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Chinese Academy of Agricultural Science (CAAS), Zhejiang, China
| | - M S Mubarik
- Department of Biotechnology, University of Narowal (UON), Narowal, 51600, Pakistan
| | - S Anwar
- Department of Agronomy, University of Florida, Gainesville, USA
| | - N Zahra
- Department of Botany, University of Agriculture, Faisalabad, Pakistan
| | - Y Sharif
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, Center of Legume Crop Genetics and Systems Biology/College of Agriculture, Oil Crops Research Institute, Fujian Agriculture and Forestry University (FAFU), Fuzhou, China
| | - M B Hafeez
- College of Agronomy, Northwest A&F University, Yangling, China
| | - C Zhang
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, Center of Legume Crop Genetics and Systems Biology/College of Agriculture, Oil Crops Research Institute, Fujian Agriculture and Forestry University (FAFU), Fuzhou, China
| | - F J Corpas
- Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, Spanish National Research Council, CSIC, Granada, Spain
| | - H Chen
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, Center of Legume Crop Genetics and Systems Biology/College of Agriculture, Oil Crops Research Institute, Fujian Agriculture and Forestry University (FAFU), Fuzhou, China
| |
Collapse
|
4
|
Yasmeen R, Zahid B, Alyas S, Akhtar R, Zahra N, Kouser S, Hashmi AS, Athar M, Tayyab M, Anjum AA. Ameliorative effects of Lactobacillus against Aflatoxin B1. BRAZ J BIOL 2021; 84:e250517. [PMID: 34932626 DOI: 10.1590/1519-6984.250517] [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: 04/01/2021] [Accepted: 08/25/2021] [Indexed: 11/22/2022] Open
Abstract
Lactobacilli are probiotics with Aflatoxin (AF) detoxification ability, found in fermented products, GIT of animals and environment. Purpose of this study was to investigate the ability of broiler isolates of Lactobacillus against Aflatoxin B1 (AFB1). For this purpose, 5 isolates of Lactobacillus from broiler gut were incubated with 100 ppb AFB1 in aqueous environment and effect of different parameters (cell fractions, time, temperature, pH) on detoxification was determined by HPLC. The ameliorative effect of Lactobacillus salivarius (LS) against AFB1 was studied in broiler. The results revealed that LS (CR. 4) showed the best results (in vitro) as compared to other isolates (L. salivarius (CR. 3, CR, 4), L. agilis (CE. 2.1, CE. 3.1) and L. crispatus (CE. 28). Cell debris of CR. 4 showed significantly higher detoxification (P<0.05). Maximum amount of AFB1 was detoxified at 30°C (97%), pH 4.0 (99%) and 6 h (99.97%). In vivo study showed that AFB1 decreased weight gain (1,269 ± 0.04 gm/ bird), feed consumed (2,161 ± 0.08 gm/ bird), serum total protein (2.42 ± 0.34 gm/ dl), serum albumin (0.5 ± 0.2 2 gm/dl) and antibody titer (4.2 ± 0.83). Liver function enzymes were found (alanine transaminase (ALT): 32 ± 10.7 U/L) and aspartate transaminase (AST): 314.8 ± 27 U/L) elevated in AFB1 fed broilers. Treatment with 1% LS not only decreased the toxic effects of AFB1 (group D) but also improved the overall health of broilers due to its probiotic effects (p<0.05) as compared to control negative (group A). The detoxification ability of LS was better than commercial binder (CB) (0.2% Protmyc). It was concluded that detoxification of AFB1 by Lactobacillus was strain, temperature, pH and time dependent. LS has detoxification ability against AFB1 in vivo.
Collapse
Affiliation(s)
- R Yasmeen
- KBCMA College of Veterinary and Animal Sciences, Narowal, Punjab, Pakistan.,University of Veterinary and Animal Sciences, Institute of Biochemistry and Biotechnology, Lahore, Punjab, Pakistan
| | - B Zahid
- KBCMA College of Veterinary and Animal Sciences, Narowal, Punjab, Pakistan.,University of Veterinary and Animal Sciences, Departments of Pathology, Lahore, Punjab, Pakistan
| | - S Alyas
- University of Lahore, Institute of Molecular Biology and Biotechnology - IMBB, Punjab, Pakistan
| | - R Akhtar
- University of Veterinary and Animal Sciences, Departments of Pathology, Lahore, Punjab, Pakistan
| | - N Zahra
- University of Lahore, Institute of Molecular Biology and Biotechnology - IMBB, Punjab, Pakistan
| | - S Kouser
- University of Veterinary and Animal Sciences, Departments of Microbiology, Lahore, Punjab, Pakistan
| | - A S Hashmi
- Riphah College of Veterinary Sciences, Lahore, Punjab, Pakistan
| | - M Athar
- Hi-Tech Feeds, Lahore, Punjab, Pakistan
| | - M Tayyab
- University of Veterinary and Animal Sciences, Institute of Biochemistry and Biotechnology, Lahore, Punjab, Pakistan
| | - A A Anjum
- University of Veterinary and Animal Sciences, Departments of Microbiology, Lahore, Punjab, Pakistan
| |
Collapse
|
5
|
AbdelMassih A, Gadalla M, Hussein E, Elahmady M, Zahra N, Eid MA, Hussein M, Hassan AA, Abou-Zeid AS, Hassan A, El Nahhas N, Emad N, Aboushadi N, Ibrahim N, Mokhtar S, El-Husseiny N, Kamel A, Hozaien R, Menshawey E, Ismail HA, Mokhles M, Menshawey R, Fouda R. The forgotten oral microbial transplantation for improving the outcomes of COVID-19. New Microbes New Infect 2021; 43:100923. [PMID: 34336224 PMCID: PMC8310390 DOI: 10.1016/j.nmni.2021.100923] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 06/17/2021] [Accepted: 07/19/2021] [Indexed: 12/31/2022] Open
Abstract
Ever since the uncovering of the severe discrepancy of COVID-19 manifestations, irrespective of viral load, scientists have raced to locate and manage factors contributing to the genesis of a critical state. Recent evidence delineates the role of oral dysbiosis in the development of low-grade inflammation, characterized by the increase of inflammatory cytokines common to those fundamental to the development of severe COVID. Furthermore, high periodontopathic bacteria were recorded in severe acute respiratory syndrome in COVID patients, as well as its common provoking comorbidities such as diabetes and hypertension. This can be explained by the immigration and elimination of oral bacteria into the airways, which, in the context of an injured lung, allows for their preferential overgrowth familiar to that, causing the progression to advanced lung diseases. This is why we indicate the promising usage of oral microbiome transplantation as a treatment of oral microbial dysbiosis, not only associated with the worst outcomes of COVID-19 but also in other disorders of low-grade inflammation.
Collapse
Affiliation(s)
- A AbdelMassih
- Pediatric Cardiology Unit, Pediatrics' Department, Faculty of Medicine, Cairo University, Egypt.,Pediatric Cardio-Oncology Department, Children Cancer Hospital of Egypt (57357), Egypt
| | - M Gadalla
- Faculty of Dentistry, New Giza University, New Giza, Egypt.,Research Accessibility Team (Students' and Interns' Research Program), Faculty of Medicine, Cairo University, Egypt
| | - E Hussein
- Faculty of Dentistry, New Giza University, New Giza, Egypt.,Research Accessibility Team (Students' and Interns' Research Program), Faculty of Medicine, Cairo University, Egypt
| | - M Elahmady
- Faculty of Dentistry, New Giza University, New Giza, Egypt.,Research Accessibility Team (Students' and Interns' Research Program), Faculty of Medicine, Cairo University, Egypt
| | - N Zahra
- Faculty of Dentistry, New Giza University, New Giza, Egypt.,Research Accessibility Team (Students' and Interns' Research Program), Faculty of Medicine, Cairo University, Egypt
| | - M A Eid
- Faculty of Dentistry, New Giza University, New Giza, Egypt.,Research Accessibility Team (Students' and Interns' Research Program), Faculty of Medicine, Cairo University, Egypt
| | - M Hussein
- Faculty of Dentistry, New Giza University, New Giza, Egypt.,Research Accessibility Team (Students' and Interns' Research Program), Faculty of Medicine, Cairo University, Egypt
| | - A A Hassan
- Faculty of Dentistry, New Giza University, New Giza, Egypt.,Research Accessibility Team (Students' and Interns' Research Program), Faculty of Medicine, Cairo University, Egypt
| | - A S Abou-Zeid
- Faculty of Dentistry, New Giza University, New Giza, Egypt.,Research Accessibility Team (Students' and Interns' Research Program), Faculty of Medicine, Cairo University, Egypt
| | - A Hassan
- Faculty of Dentistry, New Giza University, New Giza, Egypt.,Research Accessibility Team (Students' and Interns' Research Program), Faculty of Medicine, Cairo University, Egypt
| | - N El Nahhas
- Faculty of Dentistry, New Giza University, New Giza, Egypt.,Research Accessibility Team (Students' and Interns' Research Program), Faculty of Medicine, Cairo University, Egypt
| | - N Emad
- Faculty of Dentistry, New Giza University, New Giza, Egypt.,Research Accessibility Team (Students' and Interns' Research Program), Faculty of Medicine, Cairo University, Egypt
| | - N Aboushadi
- Faculty of Dentistry, New Giza University, New Giza, Egypt.,Research Accessibility Team (Students' and Interns' Research Program), Faculty of Medicine, Cairo University, Egypt
| | - N Ibrahim
- Faculty of Dentistry, New Giza University, New Giza, Egypt.,Research Accessibility Team (Students' and Interns' Research Program), Faculty of Medicine, Cairo University, Egypt
| | - S Mokhtar
- Faculty of Dentistry, New Giza University, New Giza, Egypt.,Research Accessibility Team (Students' and Interns' Research Program), Faculty of Medicine, Cairo University, Egypt
| | - N El-Husseiny
- Research Accessibility Team (Students' and Interns' Research Program), Faculty of Medicine, Cairo University, Egypt.,Faculty of Dentistry, Cairo University, Egypt.,Pixagon Graphic Design Agency, Cairo, Egypt
| | - A Kamel
- Research Accessibility Team (Students' and Interns' Research Program), Faculty of Medicine, Cairo University, Egypt
| | - R Hozaien
- Research Accessibility Team (Students' and Interns' Research Program), Faculty of Medicine, Cairo University, Egypt
| | - E Menshawey
- Research Accessibility Team (Students' and Interns' Research Program), Faculty of Medicine, Cairo University, Egypt
| | - H A Ismail
- Research Accessibility Team (Students' and Interns' Research Program), Faculty of Medicine, Cairo University, Egypt
| | - M Mokhles
- Research Accessibility Team (Students' and Interns' Research Program), Faculty of Medicine, Cairo University, Egypt
| | - R Menshawey
- Research Accessibility Team (Students' and Interns' Research Program), Faculty of Medicine, Cairo University, Egypt
| | - R Fouda
- Clinical and Chemical Pathology Department, Faculty of Medicine, Cairo University, Egypt
| |
Collapse
|
6
|
Rauf S, Zahra N, Malik SS, Zahra SAE, Sughra K, Khan MR. Extraction of Mitochondrial Genome from Whole Genome Next Generation Sequencing Data and Unveiling of Forensically Relevant Markers. RUSS J GENET+ 2020. [DOI: 10.1134/s1022795420080128] [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: 11/23/2022]
|
7
|
Aguirre M, Bartha E, Clippe S, Fleury B, Romy P, Zahra N. 3. Feasibility of prostate treatment plan based on MRI images. Phys Med 2017. [DOI: 10.1016/j.ejmp.2017.10.028] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
8
|
Zahra N, Monnet C, Bartha E, Bouilhol G, Boydev C, Courbis M, Le Grévellec M, Bosset M, Zouai M, Fleury B, Clippe S. [Interobserver variability study for daily cone beam computed tomography registration of prostate volumetric modulated arc therapy]. Cancer Radiother 2015. [PMID: 26206733 DOI: 10.1016/j.canrad.2015.04.002] [Citation(s) in RCA: 3] [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: 11/29/2022]
Abstract
PURPOSE This work evaluated the interobserver variability in cone beam computed tomography (CBCT) registration for prostate cancers treated with intensity-modulated radiotherapy. MATERIAL AND METHODS Twelve technologists realized 286 CBCT/CT registrations (bone registration followed by prostate to prostate registration). The registration results were compared to those obtained by two radiation oncologists (reference). Each technologist reported the shifts calculated by the software in all three axes. A statistical analysis allowed us to calculate the minimum threshold under which 95% of the observers found similar values. A variance analysis followed by the post hoc test were used to find differences in interobserver registration variability and determine whether any individual users performed registrations which differed significantly from those of the other users. RESULTS The registration differences compared to the reference in the three directions in terms of 95th percentile are: 2.1mm left-right, 3.5mm target-gun, 7.3mm anterior-posterior. In the posterior direction, 4% of the observers have found differences superior to 8mm, margin used in routine without the use of a daily CBCT. The variance test revealed a P-value <0.05 only for target-gun and for all observers there was no significant difference compared to the reference. CONCLUSION This study confirmed the interest of a 3D tissue registration for prostate treatments. The registration study showed a good interobserver reproducibility. This showed the importance of a daily CBCT/CT registration in prostate treatment with the possibility of a planning target volume margin reduction in the three directions. An evaluation of a partial delegation of registration to technologists should be done by the radiation oncologists.
Collapse
Affiliation(s)
- N Zahra
- Centre de radiothérapie Marie-Curie, 159, boulevard Maréchal-Juin, 26000 Valence, France.
| | - C Monnet
- Centre de radiothérapie Marie-Curie, 159, boulevard Maréchal-Juin, 26000 Valence, France
| | - E Bartha
- Centre de radiothérapie Marie-Curie, 159, boulevard Maréchal-Juin, 26000 Valence, France
| | - G Bouilhol
- Institut Curie, hôpital René-Huguenin, 35, rue Dailly, 92210 Saint-Cloud, France
| | - C Boydev
- Laboratoire de traitement des signaux 5 (LTS5), école polytechnique fédérale de Lausanne (EPFL), EPFL-STI-IEL-LTS5 Station 11, 1015 Lausanne, Suisse
| | - M Courbis
- Centre de radiothérapie Marie-Curie, 159, boulevard Maréchal-Juin, 26000 Valence, France
| | - M Le Grévellec
- Centre de radiothérapie Marie-Curie, 159, boulevard Maréchal-Juin, 26000 Valence, France
| | - M Bosset
- Centre de radiothérapie Marie-Curie, 159, boulevard Maréchal-Juin, 26000 Valence, France
| | - M Zouai
- Centre de radiothérapie Marie-Curie, 159, boulevard Maréchal-Juin, 26000 Valence, France
| | - B Fleury
- Centre de radiothérapie Marie-Curie, 159, boulevard Maréchal-Juin, 26000 Valence, France
| | - S Clippe
- Centre de radiothérapie Marie-Curie, 159, boulevard Maréchal-Juin, 26000 Valence, France
| |
Collapse
|
9
|
Zahra N, Monnet C, Bartha E, Courbis M, Le Grévellec M, Bosset M, Zouai M, Fleury B. EP-1657: Inter-observer variability study for daily CBCT registration of VMAT prostate treatment. Radiother Oncol 2015. [DOI: 10.1016/s0167-8140(15)41649-4] [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]
|
10
|
Ayadi M, Zahra N, Thariat J, Bouilhol G, Boissard P, Van Houtte P, Claude L, Mornex F. Radiothérapie conformationnelle avec modulation d’intensité dans les carcinomes bronchiques non à petites cellules. Cancer Radiother 2014; 18:406-13. [DOI: 10.1016/j.canrad.2014.06.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2014] [Revised: 06/24/2014] [Accepted: 06/29/2014] [Indexed: 12/25/2022]
|
11
|
|
12
|
Jan S, Benoit D, Becheva E, Carlier T, Cassol F, Descourt P, Frisson T, Grevillot L, Guigues L, Maigne L, Morel C, Perrot Y, Rehfeld N, Sarrut D, Schaart DR, Stute S, Pietrzyk U, Visvikis D, Zahra N, Buvat I. GATE V6: a major enhancement of the GATE simulation platform enabling modelling of CT and radiotherapy. Phys Med Biol 2011. [PMID: 21248393 DOI: 10.1088/0031‐9155/56/4/001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
GATE (Geant4 Application for Emission Tomography) is a Monte Carlo simulation platform developed by the OpenGATE collaboration since 2001 and first publicly released in 2004. Dedicated to the modelling of planar scintigraphy, single photon emission computed tomography (SPECT) and positron emission tomography (PET) acquisitions, this platform is widely used to assist PET and SPECT research. A recent extension of this platform, released by the OpenGATE collaboration as GATE V6, now also enables modelling of x-ray computed tomography and radiation therapy experiments. This paper presents an overview of the main additions and improvements implemented in GATE since the publication of the initial GATE paper (Jan et al 2004 Phys. Med. Biol. 49 4543-61). This includes new models available in GATE to simulate optical and hadronic processes, novelties in modelling tracer, organ or detector motion, new options for speeding up GATE simulations, examples illustrating the use of GATE V6 in radiotherapy applications and CT simulations, and preliminary results regarding the validation of GATE V6 for radiation therapy applications. Upon completion of extensive validation studies, GATE is expected to become a valuable tool for simulations involving both radiotherapy and imaging.
Collapse
Affiliation(s)
- S Jan
- DSV/I2BM/SHFJ, Commissariat à l'Energie Atomique, Orsay, France
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
13
|
Grevillot L, Frisson T, Maneval D, Zahra N, Badel JN, Sarrut D. Simulation of a 6 MV Elekta Precise Linac photon beam using GATE/GEANT4. Phys Med Biol 2011; 56:903-18. [DOI: 10.1088/0031-9155/56/4/002] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
14
|
Jan S, Benoit D, Becheva E, Carlier T, Cassol F, Descourt P, Frisson T, Grevillot L, Guigues L, Maigne L, Morel C, Perrot Y, Rehfeld N, Sarrut D, Schaart DR, Stute S, Pietrzyk U, Visvikis D, Zahra N, Buvat I. GATE V6: a major enhancement of the GATE simulation platform enabling modelling of CT and radiotherapy. Phys Med Biol 2011; 56:881-901. [DOI: 10.1088/0031-9155/56/4/001] [Citation(s) in RCA: 548] [Impact Index Per Article: 42.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|
15
|
Zahra N, Sallam L, Hadi S, Goodwin W. The analysis of UAE populations using AmpFℓSTR® Y Filer™: Identification of novel and null alleles. Forensic Science International: Genetics Supplement Series 2008. [DOI: 10.1016/j.fsigss.2007.10.137] [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: 11/28/2022]
|