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Petrovic B, Faj D, Markovic M, Paunovic D, Stankovic J, Krestic-Vesovic J, Miskovic I, Cicarevic K, Kasabasic M, Bibic J, Budanec M, Kralik I, Galic S, Hrepic D, Ibrisimovic L, Davidovic J, Kolarevic G, Novakovic T. Assessment of different CT simulators used in radiotherapy treatment planning: regional multicentric study. Phys Med 2021. [DOI: 10.1016/s1120-1797(22)00375-1] [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: 11/25/2022] Open
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Petrovic B, Faj D, Markovic M, Tot A, Marjanovic M, Kasabasic M, Gencel I, Paunovic D, Stankovic J, Krestic-Vesovic J, Miskovic I, Cicarevic K, Bibic J, Budanec M, Kralik I, Galic S, Hrepic D, Ibrisimovic L, Davidovic J, Kolarevic G. Assessment of computed tomography simulators used in radiotherapy treatment planning in Serbia, Croatia, and Bosnia and Herzegovina. Nucl Technol Radiat Prot 2021. [DOI: 10.2298/ntrp201118009p] [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: 11/27/2022] Open
Abstract
The purpose of this work was to evaluate computed tomography simulators used in radio-therapy treatment planning in Serbia, Croatia, and Bosnia and Herzegovina. A survey of quality assurance programmes of 24 computed tomography simulators in 16 facilities was conducted. A dedicated CT-to-ED phantom was scanned at 120 kV and 140 kV, to obtain CT-to-ED conversion curves as well as CTDIvol. Thoracal phantoms were scanned in the standard and extended field of view to evaluate the dosimetric effect on treatment planning and delivery. The mean age of the measured scanners was 5.5 years. The mean water HU value was ?6.5 (all scanners, all voltages) and air HU value was ?997. Extended field of view computed tomography data differ from the standard field of view and differences between conversion curves have significant dosimetric impact. The CTDI data showed a large range of values between centers. Better quality assurance of computed tomography simulators in all countries is recommended. The CT-to-ED curve could be used as default at one voltage and per manufacturer. Extended field of view imaging can be used, but treatment planning should be avoided in the regions out of the standard field of view.
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Affiliation(s)
- Borislava Petrovic
- Faculty of Sciences, Department of Physics, Novi Sad, Serbia + Oncology Institute Vojvodina, Radiotherapy department, Sremska Kamenica, Serbia
| | - Dario Faj
- Faculty of medicine, Josip Juraj Strossmayer University Osijek, Osijek, Croatia + Faculty of dental medicine and health sciences, University of Osijek, Osijek, Croatia
| | - Mladen Markovic
- Faculty of Sciences, Department of Physics, Novi Sad, Serbia
| | - Arpad Tot
- Faculty of Sciences, Department of Physics, Novi Sad, Serbia + Vinca institute of nuclear sciences, Belgrade, Serbia
| | - Milana Marjanovic
- Faculty of Sciences, Department of Physics, Novi Sad, Serbia + Oncology Institute Vojvodina, Radiotherapy department, Sremska Kamenica, Serbia
| | - Mladen Kasabasic
- Faculty of medicine, Josip Juraj Strossmayer University Osijek, Osijek, Croatia + Clinical Medical center Osijek, Osijek, Croatia
| | - Ivan Gencel
- Oncology Institute Vojvodina, Radiotherapy department, Sremska Kamenica, Serbia
| | | | | | | | - Ivana Miskovic
- Institute of oncology and radiology Serbia, Belgrade, Serbia
| | | | - Juraj Bibic
- University hospital center Zagreb Rebro, Zagreb, Croatia
| | - Mirjana Budanec
- University Clinical Hospital Center "Sestre Milosrdnice", Zagreb, Croatia
| | - Ivana Kralik
- University hospital center Zagreb Rebro, Zagreb, Croatia
| | - Stipe Galic
- University clinical hospital Mostar, Mostar Bosnia and Herzegovina
| | | | | | - Jasna Davidovic
- Clinical Center Banja Luka, Banja Luka, Bosnia and Herzegovina
| | - Goran Kolarevic
- International Medical Centers Banja Luka, Banja Luka, Bosnia and Herzegovina
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Palanivel R, Fullerton MD, Galic S, Honeyman J, Hewitt KA, Jorgensen SB, Steinberg GR. Reduced Socs3 expression in adipose tissue protects female mice against obesity-induced insulin resistance. Diabetologia 2012; 55:3083-93. [PMID: 22872213 PMCID: PMC5233443 DOI: 10.1007/s00125-012-2665-3] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2012] [Accepted: 06/18/2012] [Indexed: 01/08/2023]
Abstract
AIMS/HYPOTHESIS Inflammation in obesity increases the levels of the suppressor of cytokine signalling-3 (SOCS3) protein in adipose tissue, but the physiological importance of this protein in regulating whole-body insulin sensitivity in obesity is not known. METHODS We generated Socs3 floxed (wild-type, WT) and Socs3 aP2 (also known as Fabp4)-Cre null (Socs3 AKO) mice. Mice were maintained on either a regular chow or a high-fat diet (HFD) for 16 weeks during which time body mass, adiposity, glucose homeostasis and insulin sensitivity were assessed. RESULTS The HFD increased SOCS3 levels in adipose tissue of WT but not Socs3 AKO mice. WT and Socs3 AKO mice had similar body mass and adiposity, assessed using computed tomography (CT) imaging, irrespective of diet or sex. On a control chow diet there were no differences in insulin sensitivity or glucose tolerance. When fed a HFD, female but not male Socs3 AKO mice had improved glucose tolerance as well as lower fasting glucose and insulin levels compared with WT littermates. Hyperinsulinaemic-euglycaemic clamps and positron emission tomography (PET) imaging demonstrated that improved insulin sensitivity was due to elevated adipose tissue glucose uptake. Increased insulin-stimulated glucose uptake in adipose tissue was associated with enhanced levels and activating phosphorylation of insulin receptor substrate-1 (IRS1). CONCLUSIONS/INTERPRETATION These data demonstrate that inhibiting SOCS3 production in adipose tissue of female mice is effective for improving whole-body insulin sensitivity in obesity.
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Affiliation(s)
- R Palanivel
- Division of Endocrinology and Metabolism, Department of Medicine, McMaster University, 1280 Main St West, Hamilton, ON, Canada L8N 3Z5
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Barisic N, von Au K, Rados M, Pazanin L, Galic S, Cvitkovic M, Novak M, Lochmueller H, Sperling K, Lehman I, Varon R. N.P.2 08 Infantile spinal muscular atrophy with respiratory distress type 1 (SMARD1) associated with delayed CNS myelination and novel mutation in the IGHMBP2 gene. Neuromuscul Disord 2006. [DOI: 10.1016/j.nmd.2006.05.046] [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: 10/24/2022]
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Begovic D, Hitrec V, Lasan R, Letica L, Baric I, Sarnavka V, Galic S. Partial trisomy 13 in an infant with a mild phenotype: application of fluorescence in situ hybridization in cytogenetic syndromes. Croat Med J 1998; 39:212-5. [PMID: 9575279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
We report on a month-old infant with dysmorphic face and several anomalies known to be associated with trisomy 13. Fluorescence in situ hybridization (FISH) studies performed on metaphase cells allowed us to identify an extra material on the short arm of the chromosome 13 as a duplication of 13q22-qter.
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Affiliation(s)
- D Begovic
- Division of Genetics and Metabolism, Department of Pediatrics, University Hospital Center, Zagreb, Croatia
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