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Now showing items 481-500 of 4660
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Assessment of intratumor immune-microenvironment in colorectal cancers with extranodal extension of nodal metastases.
(BMC, 2018-09-06)BACKGROUND: No data is available on the molecular background of the extra-nodal extension (ENE) of lymph node metastasis (LN) in colorectal cancer (CRC). METHODS: A series of 22 ENE-positive CRCs was considered and three ... -
Assessment of Ki67 in Breast Cancer: Updated Recommendations from the International Ki67 in Breast Cancer Working Group.
(2020-12-28)Ki67 immunohistochemistry, commonly used as a proliferation marker in breast cancer, has limited value for treatment decisions due to questionable analytical validity. The International Ki67 Working Group (IKWG) consensus ... -
Assessment of MLC tracking performance during hypofractionated prostate radiotherapy using real-time dose reconstruction.
(IOP PUBLISHING LTD, 2016-02-21)By adapting to the actual patient anatomy during treatment, tracked multi-leaf collimator (MLC) treatment deliveries offer an opportunity for margin reduction and healthy tissue sparing. This is assumed to be especially ... -
Assessment of optical CT as a future QA tool for synchrotron x-ray microbeam therapy.
(IOP PUBLISHING LTD, 2016-01-07)Synchrotron microbeam radiation therapy (MRT) is an advanced form of radiotherapy for which it is extremely difficult to provide adequate quality assurance. This may delay or limit its clinical uptake, particularly in the ... -
Assessment of Patients' Ability to Review Electronic Health Record Information to Identify Potential Errors: Cross-sectional Web-Based Survey.
(2021-02-26)Background Sharing personal health information positively impacts quality of care across several domains, and particularly, safety and patient-centeredness. Patients may identify and flag up inconsistencies in their ... -
Assessment of polygenic architecture and risk prediction based on common variants across fourteen cancers.
(NATURE PORTFOLIO, 2020-07-03)Genome-wide association studies (GWAS) have led to the identification of hundreds of susceptibility loci across cancers, but the impact of further studies remains uncertain. Here we analyse summary-level data from GWAS of ... -
Assessment of structural chromosomal instability phenotypes as biomarkers of carboplatin response in triple negative breast cancer: the TNT trial.
(ELSEVIER, 2021-01-01)BACKGROUND: In the TNT trial of triple negative breast cancer (NCT00532727), germline BRCA1/2 mutations were present in 28% of carboplatin responders. We assessed quantitative measures of structural chromosomal instability ... -
Assessment of the contribution of the IHC4+C score to decision making in clinical practice in early breast cancer.
(SPRINGERNATURE, 2012-05-22)BACKGROUND: The immunohistochemical (IHC) 4+C score is a cost-effective prognostic tool that uses clinicopathologic factors and four standard IHC assays: oestrogen receptor (ER), PR, HER2 and Ki67. We assessed its utility ... -
Assessment of the direct effects of DDAH I on tumour angiogenesis in vivo.
(SPRINGER, 2018-11-01)Nitric oxide (NO) has been strongly implicated in glioma progression and angiogenesis. The endogenous inhibitors of NO synthesis, asymmetric dimethylarginine (ADMA) and N-monomethyl-L-arginine (L-NMMA), are metabolized by ... -
Assessment of the Molecular Heterogeneity of E-Cadherin Expression in Invasive Lobular Breast Cancer.
(MDPI, 2022-01-07)Mutations and loss of E-cadherin protein expression define the vast majority of invasive lobular carcinomas. In a subset of these cases, the heterogeneous expression of E-cadherin is observed either as wild-type (strong ... -
Assessment of the robustness of volumetric-modulated arc therapy for lung radiotherapy
(Oxford University Press (OUP), 2013-03-01)<jats:p>Volumetric-modulated arc therapy (VMAT) is increasingly popular as a treatment method in radiotherapy owing to the speed with which treatments can be delivered. However, there has been little investigation into the ... -
Assessment of the Spatial Heterogeneity of Breast Cancers: Associations Between Computed Tomography and Immunohistochemistry.
(2019-01)Background Tumour heterogeneity is considered an important mechanism of treatment failure. Imaging-based assessment of tumour heterogeneity is showing promise but the relationship between these mathematically derived ... -
Assessment of treatment response by total tumor volume and global apparent diffusion coefficient using diffusion-weighted MRI in patients with metastatic bone disease: a feasibility study.
(PUBLIC LIBRARY SCIENCE, 2014-04-07)We describe our semi-automatic segmentation of whole-body diffusion-weighted MRI (WBDWI) using a Markov random field (MRF) model to derive tumor total diffusion volume (tDV) and associated global apparent diffusion coefficient ... -
Association analyses identify 31 new risk loci for colorectal cancer susceptibility.
(NATURE PUBLISHING GROUP, 2019-05-14)Colorectal cancer (CRC) is a leading cause of cancer-related death worldwide, and has a strong heritable basis. We report a genome-wide association analysis of 34,627 CRC cases and 71,379 controls of European ancestry that ... -
Association analyses of more than 140,000 men identify 63 new prostate cancer susceptibility loci.
(NATURE PORTFOLIO, 2018-07-01)Genome-wide association studies (GWAS) and fine-mapping efforts to date have identified more than 100 prostate cancer (PrCa)-susceptibility loci. We meta-analyzed genotype data from a custom high-density array of 46,939 ... -
Association analysis identifies 65 new breast cancer risk loci.
(2017-11)Breast cancer risk is influenced by rare coding variants in susceptibility genes, such as BRCA1, and many common, mostly non-coding variants. However, much of the genetic contribution to breast cancer risk remains unknown. ... -
Association between Adult Height and Risk of Colorectal, Lung, and Prostate Cancer: Results from Meta-analyses of Prospective Studies and Mendelian Randomization Analyses.
(PUBLIC LIBRARY SCIENCE, 2016-09-06)BACKGROUND: Observational studies examining associations between adult height and risk of colorectal, prostate, and lung cancers have generated mixed results. We conducted meta-analyses using data from prospective cohort ... -
Association Between Immune-Related Adverse Events and Recurrence-Free Survival Among Patients With Stage III Melanoma Randomized to Receive Pembrolizumab or Placebo: A Secondary Analysis of a Randomized Clinical Trial.
(AMER MEDICAL ASSOC, 2020-04-01)Importance: Whether immune-related adverse events (irAEs) indicate drug activity in patients treated with immune checkpoint inhibitors remains unknown. Objective: To investigate the association between irAEs and recurrence-free ... -
Association between information provision and supportive care needs among ovarian cancer survivors: A cross-sectional study from the PROFILES registry.
(WILEY, 2018-08-01)OBJECTIVE: To examine the association between satisfaction with perceived information provision during diagnosis and treatment and supportive care needs in ovarian cancer survivors. METHODS: In 2012, women (n = 348) diagnosed ...