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Träfflista för sökning "WFRF:(Burnet N) "

Sökning: WFRF:(Burnet N)

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1.
  • Dadaev, Tokhir, et al. (författare)
  • Fine-mapping of prostate cancer susceptibility loci in a large meta-analysis identifies candidate causal variants.
  • 2018
  • Ingår i: ; 9:1
  • Tidskriftsartikel (refereegranskat)abstract
    • Prostate cancer is a polygenic disease with a large heritable component. A number of common, low-penetrance prostate cancer risk loci have been identified through GWAS. Here we apply the Bayesian multivariate variable selection algorithm JAM to fine-map 84 prostate cancer susceptibility loci, using summary data from a large European ancestry meta-analysis. We observe evidence for multiple independent signals at 12 regions and 99 risk signals overall. Only 15 original GWAS tag SNPs remain among the catalogue of candidate variants identified; the remainder are replaced by more likely candidates. Biological annotation of our credible set of variants indicates significant enrichment within promoter and enhancer elements, and transcription factor-binding sites, including AR, ERG and FOXA1. In 40 regions at least one variant is colocalised with an eQTL in prostate cancer tissue. The refined set of candidate variants substantially increase the proportion of familial relative risk explained by these known susceptibility regions, which highlights the importance of fine-mapping studies and has implications for clinical risk profiling.
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2.
  • Abazov, V. M., et al. (författare)
  • b-Jet identification in the D0 experiment
  • 2010
  • Ingår i: Nuclear Instruments and Methods in Physics Research Section A. - 0168-9002 .- 1872-9576. ; 620:2-3, s. 490-517
  • Tidskriftsartikel (refereegranskat)abstract
    • Algorithms distinguishing jets originating from b quarks from other jet flavors are important tools in the physics program of the D0 experiment at the Fermilab Tevatron p (p) over bar collider. This article describes the methods that have been used to identify b-quark jets, exploiting in particular the long lifetimes of b-flavored hadrons, and the calibration of the performance of these algorithms based on collider data.
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  • Burnet, N G, et al. (författare)
  • Describing patients' normal tissue reactions: concerning the possibility of individualising radiotherapy dose prescriptions based on potential predictive assays of normal tissue radiosensitivity. Steering Committee of the BioMed2 European Union Concerted Action Programme on the Development of Predictive Tests of Normal Tissue Response to Radiation Therapy.
  • 1998
  • Ingår i: International journal of cancer. Journal international du cancer. - 0020-7136. ; 79:6, s. 606-13
  • Tidskriftsartikel (refereegranskat)abstract
    • Clinical radiotherapeutic doses are limited by the tolerance of normal tissues. Patients given a standard treatment exhibit a range of normal tissue reactions, and a better understanding of this individual variation might allow for individualisation of radiotherapeutic prescriptions, with consequent improvement in the therapeutic ratio. At present, there is no simple way to describe normal tissue reactions, which hampers communication between clinic and laboratory and between groups from different centres. There is also no method for comparing the severity of reactions in different normal tissues. This arises largely because there is no definition of a "normal" reaction, an "extreme" reaction or the particular term "over-reactor" (OR). This report proposes definitions for these terms, as well as a simple terminology for describing normal tissue reactions in patients having radiotherapy. The "normal" range represents the individual variation in normal tissue reactions amongst large numbers of patients treated in the same way which is within clinically acceptable limits. The term "OR" is applied to an individual whose reaction is more severe than the normal range but also implies that this forced a major change in the radiotherapeutic prescription or that the reactions were very severe or fatal. A "severe OR" would develop serious problems with a typical radical dose, while an "extreme OR" would have such difficulties at a much lower dose. To describe the normal range, a numerical scale is suggested, from 1 to 5, resistant to sensitive. The term "highly radiosensitive" (HR) is suggested for category 5. An "informal" relative scale, as suggested here, is quick and simple. It should allow comparison between different hospitals, compensate for differences in radiotherapeutic dose and technique and allow comparison of reactions between different anatomical sites. It should be adequate for discriminating patients at the extremes of the normal range from those at the centre. It is hoped that the definitions and terminology proposed here will aid communication in the field of predictive testing of normal tissue radiosensitivity.
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9.
  • Burnet, N G, et al. (författare)
  • Normal tissue radiosensitivity--how important is it?
  • 1996
  • Ingår i: Clinical oncology (Royal College of Radiologists (Great Britain)). - 0936-6555. ; 8:1, s. 25-34
  • Tidskriftsartikel (refereegranskat)abstract
    • The success of radiotherapy in eradicating tumours depends on the total radiation dose, but what limits this dose is the tolerance of the normal tissues within the treatment volume. Selection of the appropriate dose for all patients is based on a balance between minimising the incidence of severe normal tissue complications and maximizing the probability of local control. In patients treated to the same radical dose, a wide range of reactions is seen; in many clinical situations, radical doses are limited by the minority of patients whose normal tissues are particularly sensitive. Clinical studies of radiotherapy reactions have demonstrated that a large part of the spectrum of normal tissue reactions, perhaps as much as 80%, is due to differences in individual normal tissue sensitivity. This suggests that it might be possible to measure this sensitivity and to change treatment accordingly. The main objective of normal tissue sensitivity testing is to permit dose escalation without increased normal tissue complication rates in patients with more resistant normal tissues. Calculations suggest that the most "resistant' 40% of patients could be dose escalated by 17%-18%, which is likely to be associated with significant gains in local control, perhaps by as much as 34%-36%; this should translate into an increase in overall survival. It should also be possible to identify those relatively few patients who suffer serious normal tissue morbidity with conventional doses. Thus, if successful, predictive testing of normal tissue response should improve the therapeutic ratio of radiotherapy.
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10.
  • Burnet, N G, et al. (författare)
  • Prediction of normal-tissue tolerance to radiotherapy from in-vitro cellular radiation sensitivity.
  • 1992
  • Ingår i: Lancet. - 0140-6736. ; 339:8809, s. 1570-1
  • Tidskriftsartikel (refereegranskat)abstract
    • The success of radiotherapy depends on the total radiation dose, which is limited by the tolerance of surrounding normal tissues. Since there is substantial variation among patients in normal-tissue radiosensitivity, we have tested the hypothesis that in-vitro cellular radiosensitivity is correlated with in-vitro normal-tissue responses. We exposed skin fibroblast cell lines from six radiation-treated patients to various doses of radiation and measured the proportions surviving. There was a strong relation between fibroblast sensitivity in vitro and normal-tissue reactions, especially acute effects. Assessment of radiosensitivity could lead to improved tumour cure rates by enabling radiation doses to be tailored to the individual.
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