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Milano CR, Ur SN, Gu Y, Zhang J, Allison R, Brown G, Neale MJ, Tromer EC, Corbett KD, Hochwagen A. Chromatin binding by HORMAD proteins regulates meiotic recombination initiation. EMBO J 2024; 43:836-867. [PMID: 38332377 PMCID: PMC10907721 DOI: 10.1038/s44318-024-00034-3] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 01/08/2024] [Accepted: 01/11/2024] [Indexed: 02/10/2024] Open
Abstract
The meiotic chromosome axis coordinates chromosome organization and interhomolog recombination in meiotic prophase and is essential for fertility. In S. cerevisiae, the HORMAD protein Hop1 mediates the enrichment of axis proteins at nucleosome-rich islands through a central chromatin-binding region (CBR). Here, we use cryoelectron microscopy to show that the Hop1 CBR directly recognizes bent nucleosomal DNA through a composite interface in its PHD and winged helix-turn-helix domains. Targeted disruption of the Hop1 CBR-nucleosome interface causes a localized reduction of axis protein binding and meiotic DNA double-strand breaks (DSBs) in axis islands and leads to defects in chromosome synapsis. Synthetic effects with mutants of the Hop1 regulator Pch2 suggest that nucleosome binding delays a conformational switch in Hop1 from a DSB-promoting, Pch2-inaccessible state to a DSB-inactive, Pch2-accessible state to regulate the extent of meiotic DSB formation. Phylogenetic analyses of meiotic HORMADs reveal an ancient origin of the CBR, suggesting that the mechanisms we uncover are broadly conserved.
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Affiliation(s)
- Carolyn R Milano
- Department of Biology, New York University, New York, NY, 10003, USA
| | - Sarah N Ur
- Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA, 92093, USA
- Vividion Therapeutics, San Diego, CA, 92121, USA
| | - Yajie Gu
- Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA, 92093, USA
| | - Jessie Zhang
- Department of Biology, New York University, New York, NY, 10003, USA
| | - Rachal Allison
- Genome Damage and Stability Centre, University of Sussex, Falmer, BN1 9RQ, UK
| | - George Brown
- Genome Damage and Stability Centre, University of Sussex, Falmer, BN1 9RQ, UK
| | - Matthew J Neale
- Genome Damage and Stability Centre, University of Sussex, Falmer, BN1 9RQ, UK
| | - Eelco C Tromer
- Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, Groningen, 9747 AG, The Netherlands
| | - Kevin D Corbett
- Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA, 92093, USA.
- Department of Molecular Biology, University of California, San Diego, La Jolla, CA, 92093, USA.
| | - Andreas Hochwagen
- Department of Biology, New York University, New York, NY, 10003, USA.
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Allison R, Lecky DM, Town K, Rugman C, Ricketts EJ, Ockendon-Powell N, Folkard KA, Dunbar JK, McNulty CAM. Exploring why a complex intervention piloted in general practices did not result in an increase in chlamydia screening and diagnosis: a qualitative evaluation using the fidelity of implementation model. BMC Fam Pract 2017; 18:43. [PMID: 28327096 PMCID: PMC5361828 DOI: 10.1186/s12875-017-0618-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Accepted: 03/07/2017] [Indexed: 11/10/2022]
Abstract
BACKGROUND Chlamydia trachomatis (chlamydia) is the most commonly diagnosed sexually transmitted infection (STI) in England; approximately 70% of diagnoses are in sexually active young adults aged under 25. To facilitate opportunistic chlamydia screening in general practice, a complex intervention, based on a previously successful Chlamydia Intervention Randomised Trial (CIRT), was piloted in England. The modified intervention (3Cs and HIV) aimed to encourage general practice staff to routinely offer chlamydia testing to all 15-24 year olds regardless of the type of consultation. However, when the 3Cs (chlamydia screening, signposting to contraceptive services, free condoms) and HIV was offered to a large number of general practitioner (GP) surgeries across England, chlamydia screening was not significantly increased. This qualitative evaluation addresses the following aims: a) Explore why the modified intervention did not increase screening across all general practices. b) Suggest recommendations for future intervention implementation. METHODS Phone interviews were carried out with 26 practice staff, at least 5 months after their initial educational workshop, exploring their opinions on the workshop and intervention implementation in the real world setting. Interview transcripts were thematically analysed and further examined using the fidelity of implementation model. RESULTS Participants who attended had a positive attitude towards the workshops, but attendee numbers were low. Often, the intervention content, as detailed in the educational workshops, was not adhered to: practice staff were unaware of any on-going trainer support; computer prompts were only added to the female contraception template; patients were not encouraged to complete the test immediately; complete chlamydia kits were not always readily available to the clinicians; and videos and posters were not utilised. Staff reported that financial incentives, themselves, were not a motivator; competing priorities and time were identified as major barriers. CONCLUSION Not adhering to the exact intervention model may explain the lack of significant increases in chlamydia screening. To increase fidelity of implementation outside of Randomised Controlled Trial (RCT) conditions, and consequently, improve likelihood of increased screening, future public health interventions in general practices need to have: more specific action planning within the educational workshop; computer prompts added to systems and used; all staff attending the workshop; and on-going practice staff support with feedback of progress on screening and diagnosis rates fed back to all staff.
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Affiliation(s)
- R Allison
- Primary Care Unit, National Infection Service, Public Health England, Microbiology Dept, Gloucestershire Royal Hospital, Great Western Road, Gloucester, GL1 3NN, UK.
| | - D M Lecky
- Primary Care Unit, National Infection Service, Public Health England, Microbiology Dept, Gloucestershire Royal Hospital, Great Western Road, Gloucester, GL1 3NN, UK
| | - K Town
- HIV/STI Department, Centre for Infectious Disease Control and Surveillance, Public Health England, London, UK
| | - C Rugman
- Formerly Public Health England, Primary Care Unit, Microbiology Dept., Gloucester, GL1 3NN, UK
| | - E J Ricketts
- Formerly Public Health England, Primary Care Unit, Microbiology Dept., Gloucester, now Derriford Hospital, Derriford Road, Plymouth, UK
| | - N Ockendon-Powell
- Formerly Public Health England, Primary Care Unit, Microbiology Dept., Gloucester, now Biotechnology and Biological Sciences Research Council (BBSRC), Polaris House, North Star Avenue, Swindon, UK
| | - K A Folkard
- HIV/STI Department, Centre for Infectious Disease Control and Surveillance, Public Health England, London, UK
| | - J K Dunbar
- HIV/STI Department, Centre for Infectious Disease Control and Surveillance, Public Health England, London, UK
| | - C A M McNulty
- Primary Care Unit, National Infection Service, Public Health England, Microbiology Dept, Gloucestershire Royal Hospital, Great Western Road, Gloucester, GL1 3NN, UK
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Allison R. Photodynamic therapy: Immunology and clinical oncology. Photodiagnosis Photodyn Ther 2017. [DOI: 10.1016/j.pdpdt.2017.01.069] [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: 11/30/2022]
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Allison R, Remonde D, Salenius S, Hnatov A, Ballenger C, Mantz C, Fernandez E, Dosoretz D, Finkelstein S. EP-1114: Clinical outcomes in modern management of infratentorial ependymoma. Radiother Oncol 2016. [DOI: 10.1016/s0167-8140(16)32364-7] [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: 10/21/2022]
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Pandeya N, McLeod DS, Balasubramaniam K, Baade PD, Youl PH, Bain CJ, Allison R, Jordan SJ. Increasing thyroid cancer incidence in Queensland, Australia 1982-2008 - true increase or overdiagnosis? Clin Endocrinol (Oxf) 2016; 84:257-264. [PMID: 25597380 DOI: 10.1111/cen.12724] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2014] [Revised: 12/15/2014] [Accepted: 01/13/2015] [Indexed: 12/14/2022]
Abstract
BACKGROUND Thyroid cancer incidence has been increasing worldwide. Some suggest greater ascertainment of indolent tumours is the only driver, but others suggest there has been a true increase. Increases in Australia appear to have been among the largest in the world, so we investigated incidence trends in the Australian state of Queensland to help understand reasons for the rise. METHODS Thyroid cancers diagnoses in Queensland 1982-2008 were ascertained from the Queensland Cancer Registry. We calculated age-standardized incidence rates (ASR) and used Poisson regression to estimate annual percentage change (APC) in thyroid cancer incidence by socio-demographic and tumour-related factors. RESULTS Thyroid cancer ASR in Queensland increased from 2·2 to 10·6/100 000 between 1982 and 2008 equating to an APC of 5·5% [95% confidence interval (CI) 4·7-6·4] in men and 6·1% (95% CI 5·5-6·6) in women. The rise was evident, and did not significantly differ, across socio-economic and remoteness-of-residence categories. The largest increase seen was in the papillary subtype in women (APC 7·9%, 95% CI 7·3-8·5). Incidence of localized and more advanced-stage cancers rose over time although the increase was greater for early-stage cancers. CONCLUSION There has been a marked increase in thyroid cancer incidence in Queensland. The increase is evident in men and women across all adult age groups, socio-economic strata and remoteness-of-residence categories as well as in localized and more advanced-stage cancers. Our results suggest 'overdiagnosis' may not entirely explain rising incidence. Contemporary aetiological data and individual-level information about diagnostic circumstances are required to further understand reasons for rising thyroid cancer incidence.
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Affiliation(s)
- N Pandeya
- School of Population Health, The University of Queensland, Herston, Brisbane, Qld, Australia
- Population Health Department, QIMR Berghofer Medical Research Institute, Herston, Brisbane, Qld, Australia
| | - D S McLeod
- Population Health Department, QIMR Berghofer Medical Research Institute, Herston, Brisbane, Qld, Australia
- Department of Endocrinology and Diabetes, Royal Brisbane & Women Hospital, Brisbane, Qld, Australia
| | - K Balasubramaniam
- School of Population Health, The University of Queensland, Herston, Brisbane, Qld, Australia
- Population Health Department, QIMR Berghofer Medical Research Institute, Herston, Brisbane, Qld, Australia
| | - P D Baade
- Cancer Council Queensland, Brisbane, Qld, Australia
- School of Public Health and Social Work, Queensland University of Technology, Brisbane, Qld, Australia
- Griffith Health Institute, Griffith University, Gold Coast, Qld, Australia
| | - P H Youl
- Cancer Council Queensland, Brisbane, Qld, Australia
- School of Public Health and Social Work, Queensland University of Technology, Brisbane, Qld, Australia
- Griffith Health Institute, Griffith University, Gold Coast, Qld, Australia
| | - C J Bain
- Population Health Department, QIMR Berghofer Medical Research Institute, Herston, Brisbane, Qld, Australia
| | - R Allison
- Cancer Care Services, Royal Brisbane & Women Hospital, Brisbane, Qld, Australia
| | - S J Jordan
- Population Health Department, QIMR Berghofer Medical Research Institute, Herston, Brisbane, Qld, Australia
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Shen L, Allison R, Wilcox L, Fujii Y. Motion discrimination of high frame rate movie. J Vis 2014. [DOI: 10.1167/14.15.57] [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: 11/24/2022] Open
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Fujii Y, Allison R, Shen L, Wilcox L. The effects of frame rate on 2-D and 3-D global motion processing. J Vis 2014. [DOI: 10.1167/14.15.55] [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: 11/24/2022] Open
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Tsirlin I, Wilcox L, Allison R. Size matters: Perceived depth magnitude varies with stimulus height. J Vis 2014. [DOI: 10.1167/14.10.977] [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: 11/24/2022] Open
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Allison R, Salenius S, Hnatov A, Ballenger C, Finkelstein S, Mantz C, Fernandez E, Dosoretz D. EP-1145: Lymphoepithelioma of the head and neck: Current treatment and outcomes. Radiother Oncol 2014. [DOI: 10.1016/s0167-8140(15)31263-9] [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]
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Windsor A, Koh ES, Allen S, Gabriel G, Yeo A, Allison R, van der Linden Y, Barton M. Poor Outcomes after Whole Brain Radiotherapy in Patients with Brain Metastases: Results from an International Multicentre Cohort Study. Clin Oncol (R Coll Radiol) 2013; 25:674-80. [DOI: 10.1016/j.clon.2013.07.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2013] [Revised: 06/24/2013] [Accepted: 06/27/2013] [Indexed: 10/26/2022]
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Kirollos R, Allison R, Zacher J, Guterman PS, Palmisano S. Perception of smooth and perturbed vection in short-duration microgravity. J Vis 2013. [DOI: 10.1167/13.9.702] [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: 11/24/2022] Open
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Schlumberger M, Jarzab B, Cabanillas M, Robinson B, Furio P, Ball D, McCaffrey J, Newbold K, Allison R, Martins R, Licitra L, Shah M, Bodenner D, Elisei R, Burmeister L, Funahashi Y, Sellecchia R, Andresen C, O'Brien J, Sherman S. A Phase II Trial of the Multi-Targeted Kinase Inhibitor Lenvatinib (E7080) in Advanced Medullary Thyroid Cancer (MTC). Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)32016-0] [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: 11/28/2022] Open
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Carey A, Wilcox L, Allison R. On the allocation of attention in stereoscopic displays. J Vis 2012. [DOI: 10.1167/12.9.216] [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: 11/24/2022] Open
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Lugtigheid A, Wilcox L, Allison R, Howard I. Depth from diplopic stimuli without vergence eye movements. J Vis 2012. [DOI: 10.1167/12.9.451] [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: 11/24/2022] Open
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Tsirlin I, Allison R, Wilcox L. Is depth in monocular regions processed by disparity detectors? A computational analysis. J Vis 2012. [DOI: 10.1167/12.9.215] [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: 11/24/2022] Open
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Tsirlin I, Allison R, Wilcox L. Decoding da Vinci: quantitative depth from monocular occlusions. J Vis 2011. [DOI: 10.1167/11.11.337] [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: 11/24/2022] Open
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Windsor A, Koh E, Allen S, Yeo A, van der Linden Y, Allison R, Barton M. 8706 ORAL Characteristics and Outcomes After Whole Brain Radiotherapy for Brain Metastases in a Large International Cohort. Eur J Cancer 2011. [DOI: 10.1016/s0959-8049(11)72257-2] [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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Sherman SI, Jarzab B, Cabanillas ME, Licitra LF, Pacini F, Martins R, Robinson B, Ball D, McCaffrey J, Shah MH, Bodenner D, Allison R, Newbold K, Elisei R, O'Brien JP, Schlumberger M. A phase II trial of the multitargeted kinase inhibitor E7080 in advanced radioiodine (RAI)-refractory differentiated thyroid cancer (DTC). J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.5503] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Allison R, Salenius S, Dosoretz D. 884 poster CHEMO-RADIATION ALONE, WITHOUT RESECTION, MAY OFFER EXCELLENT LOCAL CONTROL AND SURVIVAL FOR INVASIVE THYMOMA. Radiother Oncol 2011. [DOI: 10.1016/s0167-8140(11)71006-4] [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: 11/25/2022]
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Bogdan N, Allison R, Suryakumar R. Infrared Tracking of the Near Triad. J Vis 2010. [DOI: 10.1167/10.7.507] [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: 11/24/2022] Open
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Tsirlin I, Wilcox L, Allison R. Interactions between monocular occlusions and binocular disparity in the perceived depth of illusory surfaces. J Vis 2010. [DOI: 10.1167/10.7.373] [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: 11/24/2022] Open
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Ferreira M, Austerlitz C, Sheng C, Benhabib S, Allison R, Sibata C. SU-GG-T-304: Spreadsheet for Determination of Irradiance Delivered by Cylindrical Diffusers for Intracavitary PDT Treatments. Med Phys 2010. [DOI: 10.1118/1.3468699] [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: 11/07/2022] Open
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Allison R, Gillam B, Vecellio E. Binocular depth discrimination and estimation beyond interaction space. J Vis 2010. [DOI: 10.1167/7.9.817] [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: 11/24/2022] Open
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Tsirlin I, Wilcox L, Allison R. Identifying discontinuities in depth: A role for monocular occlusions. J Vis 2010. [DOI: 10.1167/9.8.277] [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: 11/24/2022] Open
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Buyyounouski M, Pickles T, Kestin L, Allison R, Williams S. Validating the Interval to Biochemical Failure for the Identification of Potentially Lethal Prostate Cancer. Int J Radiat Oncol Biol Phys 2009. [DOI: 10.1016/j.ijrobp.2009.07.252] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Allison R. Doing it right: Radiation Oncology Treatment Quality Program. J Med Imaging Radiat Oncol 2009; 53:337-8. [PMID: 19695038 DOI: 10.1111/j.1754-9485.2009.02089.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Sheng C, Bonnerup C, Austerlitz C, Allison R, Sibata C. WE-E-304A-04: Local Determination of Tissue Optical Properties: Reconstruction Based On Fiber-Array Reflectance Profiles. Med Phys 2009. [DOI: 10.1118/1.3182574] [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: 11/07/2022] Open
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Benhabib S, Mota H, Austerlitz C, Ferreira M, Allison R, Sibata C. SU-FF-T-18: On the Determination of the Absolute Dose for a 192Ir HDR Source Using a Fricke Dosimeter: Correction Factors for Several Radii Using MC Calculation. Med Phys 2009. [DOI: 10.1118/1.3181489] [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: 11/07/2022] Open
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Ferreira M, Austerlitz C, Sheng C, Benhabib S, Allison R, Sibata C. MO-FF-A1-06: Quantitative Light Dosimetry in Air Using Spherical Optical Fiber Detector. Med Phys 2009. [DOI: 10.1118/1.3182282] [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: 11/07/2022] Open
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Allison R. ES10�THE ROLE OF EXTERNAL BEAM RADIATION IN RECURRENT DIFFERENTIATED THYROID CANCER. ANZ J Surg 2009. [DOI: 10.1111/j.1445-2197.2009.04916_10.x] [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: 11/27/2022]
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Allison R. ES26�I-131 AND SURVIVAL IN DIFFERENTIATED THYROID CANCER. ANZ J Surg 2009. [DOI: 10.1111/j.1445-2197.2009.04916_26.x] [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: 10/20/2022]
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Affiliation(s)
- R Allison
- Department of Interventional Radiology, Freeman Hospital, Newcastle upon Tyne NE7 7DN
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Allison R. The Peter Mac: A personal reminiscence - Edited by TF Sandeman. J Med Imaging Radiat Oncol 2008. [DOI: 10.1111/j.1440-1673.2008.02029.x] [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: 11/30/2022]
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Austerlitz C, Mota HC, Sempau J, Benhabib SM, Campos D, Allison R, deAlmeida CE, Zhu D, Sibata CH. Determination of absorbed dose in water at the reference point D(r0,θ0) for an Ir192 HDR brachytherapy source using a Fricke system. Med Phys 2008; 35:5360-5. [DOI: 10.1118/1.2996178] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Allison R, Johnston RE, Dougherty WG. The nucleotide sequence of the coding region of tobacco etch virus genomic RNA: evidence for the synthesis of a single polyprotein. Virology 2008; 154:9-20. [PMID: 18640649 DOI: 10.1016/0042-6822(86)90425-3] [Citation(s) in RCA: 156] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/1986] [Accepted: 05/30/1986] [Indexed: 10/26/2022]
Abstract
The complete nucleotide sequence of the tobacco etch virus (TEV) RNA genome has been determined excepting only the nucleotide(s) present at the extreme 5' terminus. The assembled TEV genomic sequence is 9496 nucleotides in length followed by a polyadenylated tract ranging from 20 to 140 residues. A computer search of the sequence reveals the following. A 5' untranslated region, rich in adenosine and uridine, is present between nucleotides 1 and 144. A putative initiation codon, at nucleotides 145-147, marks the beginning of a large open-reading frame (ORF) which ends with an opal (UGA) termination codon at positions 9307-9309. A 186-nucleotide untranslated region is present between the termination codon of the ORF and the beginning of the 3' polyadenylated region. The predicted translation product of this ORF is a 3054 amino acid polyprotein with a mol wt of 345,943. A function for the large (54,000 Mr) nuclear inclusion protein is suggested by a comparison of the deduced amino acid sequence with a protein data bank. This protein displays biochemical similarities to other viral RNA-dependent, RNA polymerases.
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Affiliation(s)
- R Allison
- Department of Plant Pathology, North Carolina State University, Raleigh, North Carolina 27695, USA
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Mota H, Ferreira M, Wolfe M, Allison R, Sibata C. SU-GG-J-50: Comparing IGRT Shifts with MVision and CT On Rails Systems Using Anthropomorphic Phantom. Med Phys 2008. [DOI: 10.1118/1.2961608] [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: 11/07/2022] Open
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Zhu D, Austerlitz C, Mota H, Benhabib S, Gay H, Allison R, Campos D, Sibata C. SU-GG-T-381: Attenuation Due to Bronchial Stents in Photodynamic Therapy. Med Phys 2008. [DOI: 10.1118/1.2962133] [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: 11/07/2022] Open
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Benhabib SM, Zhu D, Austerlitz C, Mota H, Sempau J, Allison R, Sibata C. SU-GG-T-03: Dosimetric Study of HDR 192Ir and LDR 125I Brachytherapy Sources Using the Penelope Monte Carlo Code. Med Phys 2008. [DOI: 10.1118/1.2961753] [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: 11/07/2022] Open
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Austerlitz C, Mota H, Gay H, Campos D, Allison R, Sibata C. On the need for quality assurance in superficial kilovoltage radiotherapy. Radiat Prot Dosimetry 2008; 130:476-481. [PMID: 18325931 DOI: 10.1093/rpd/ncn067] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
External auditing of beam output and energy qualities of four therapeutic X-ray machines were performed in three radiation oncology centres in northeastern Brazil. The output and half-value layers (HVLs) were determined using a parallel-plate ionisation chamber and high-purity aluminium foils, respectively. The obtained values of absorbed dose to water and energy qualities were compared with those obtained by the respective institutions. The impact on the prescribed dose was analysed by determining the half-value depth (D(1/2)). The beam outputs presented percent differences ranging from -13 to +25%. The ratio between the HVL in use by the institution and the measurements obtained in this study ranged from 0.75 to 2.33. Such deviations in HVL result in percent differences in dose at D(1/2) ranging from -52 to +8%. It was concluded that dosimetric quality audit programmes in radiation therapy should be expanded to include dermatological radiation therapy and such audits should include HVL verification.
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Affiliation(s)
- C Austerlitz
- The Brody School of Medicine at ECU, Department of Radiation Oncology, Greenville, NC, USA
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Abstract
A prototype of a Fricke dosimetry system consisting of a 15 x 15 x 15 cm3 water phantom made of Plexiglas and a 11.3-ml Pyrex balloon fitted with a 0.2 cm thick Pyrex sleeve in its center was created to assess source strength and treatment planning algorithms for use in high dose rate (HDR) 192Ir afterloading units. In routine operation, the radioactive source is positioned at the end of a sleeve, which coincides with the center of the spherical balloon that is filled with Fricke solution, so that the solution is nearly isotropically irradiated. The Fricke system was calibrated in terms of source strength against a reference well-type ionization chamber, and in terms of radial dose by means of an existing algorithm from the HDR's treatment planning system. Because the system is based on the Fricke dosimeter itself, for a given type and model of 192Ir source, the system needs initial calibration but no recalibration. The results from measurements made over a 10 month period, including source decay and source substitutions, have shown the feasibility of using such a system for quality control (QC) of HDR afterloading equipment, including both the source activity and treatment planning parameters. The benefit of a large scale production and the use of this device for clinical HDR QC audits via mail are also discussed.
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Affiliation(s)
- C Austerlitz
- The Brody School of Medicine, East Carolina University, Department of Radiation Oncology, 600 Moye Boulevard, Greenville, North Carolina 27858, USA
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Mota H, Austerlitz C, Gay H, Allison R, Bonnerup C, Downie G, Sibata C. SU-FF-T-87: Attenuation Due to Bronchial Stents in 192Ir HDR Brachytherapy. Med Phys 2007. [DOI: 10.1118/1.2760740] [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: 11/07/2022] Open
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Austerlitz C, Mota H, Souza V, Campos D, Gay H, Allison R, Sibata C. SU-FF-T-413: The Response Of The Fricke Dosimeter To Sunlight. Med Phys 2007. [DOI: 10.1118/1.2761138] [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: 11/07/2022] Open
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Jenkins T, Bonnerup C, Chen C, Allison R, Sibata C. SU-FF-J-19: Prototype Fixture for IGRT Coordinate Registration and 4D CT Reconstruction. Med Phys 2007. [DOI: 10.1118/1.2760524] [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: 11/07/2022] Open
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Mota H, Austerlitz C, Gay H, Allison R, Sibata C. SU-FF-T-49: A Study of the Transit Dose for the Leksell Gamma Knife Model 4C Using Diode and GafChromic Film in Air and Phantom. Med Phys 2007. [DOI: 10.1118/1.2760697] [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: 11/07/2022] Open
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Jenkins T, Gay H, Sasidharan S, Sibata C, Allison R. 2085. Int J Radiat Oncol Biol Phys 2006. [DOI: 10.1016/j.ijrobp.2006.07.488] [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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Kennedy GA, Butler J, Morton J, Hill G, Western R, Cummings J, Allison R, Durrant S. Myeloablative allogeneic stem cell transplantation for advanced stage multiple myeloma: very long-term follow up of a single center experience. ACTA ACUST UNITED AC 2006; 28:189-97. [PMID: 16706936 DOI: 10.1111/j.1365-2257.2006.00773.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We aimed to review the long-term outcome of myeloablative allogeneic stem cell transplantation (SCT) performed for multiple myeloma (MM) at our institution. Records of all patients who received standard myeloablative allogeneic SCT for MM were retrospectively reviewed. Overall survival (OS), progression-free survival (PFS), and event-free survival (EFS) were calculated using the Kaplan-Meier method. In total 37 transplants had been performed. Median follow up post-SCT was 108 months (range: 33-148). The majority of patients suffered advanced stage disease and/or had received multiple prior therapies prior to SCT. Transplant-related mortality (TRM) at 100 days was 32%. Grades 2-4 acute graft-vs.-host disease (GVHD) occurred in 18 patients (49%), and extensive stage chronic GVHD in seven (28%) of 25 patients surviving greater than day 100. Median OS, PFS, and EFS were 28 months, 66 months and 13 months, respectively, with 5 year OS, PFS, and EFS 40%, 54% and 24%. Our results suggest that allogeneic SCT, even when performed in advanced stage, heavily pretreated MM, still results in long-term EFS in a significant minority of patients. Efforts should continue on alternative allogeneic SCT approaches to reduce the high early TRM rate associated with myeloablative conditioning.
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Affiliation(s)
- G A Kennedy
- Division of Oncology, Royal Brisbane and Women's Hospital, Queensland, Australia.
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Austerlitz C, Mota H, Souza V, Campos D, Bagnato V, Allison R, Sibata C. SU-FF-T-430: The Use of Fricke Solutions to Assess Light Dose in Photodynamic Therapy. Med Phys 2006. [DOI: 10.1118/1.2241350] [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: 11/07/2022] Open
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Wolfe M, Patel R, Jenkins T, Mota H, Sibata C, Allison R. SU-FF-J-20: An Evaluation of User Variability for Image-Guided Radiation Therapy (IGRT) Shift Determination. Med Phys 2006. [DOI: 10.1118/1.2240799] [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: 11/07/2022] Open
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Sibata C, Allison R, Downie G, Childs C, Cuenca R. Photodynamic Therapy for Salvage of Radiation Failure in Breast Cancer. Int J Radiat Oncol Biol Phys 2005. [DOI: 10.1016/j.ijrobp.2005.07.432] [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: 11/29/2022]
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