RESUMO
INTRODUCTION: Genetic ancestry (GA) refers to population hereditary patterns that contribute to phenotypic differences seen among race/ethnicity groups, and differences among GA groups may highlight unique biological determinants that add to our understanding of health care disparities. METHODS: A retrospective review of patients with renal cell carcinoma (RCC) was performed and correlated GA with clinicopathologic, somatic, and germline molecular data. All patients underwent next-generation sequencing of normal and tumor DNA using Memorial Sloan Kettering-Integrated Mutation Profiling of Actionable Cancer Targets, and contribution of African (AFR), East Asian (EAS), European (EUR), Native American, and South Asian (SAS) ancestry was inferred through supervised ADMIXTURE. Molecular data was compared across GA groups by Fisher exact test and Kruskal-Wallis test. RESULTS: In 953 patients with RCC, the GA distribution was: EUR (78%), AFR (4.9%), EAS (2.5%), SAS (2%), Native American (0.2%), and Admixed (12.2%). GA distribution varied by tumor histology and international metastatic RCC database consortium disease risk status (intermediate-poor: EUR 58%, AFR 88%, EAS 74%, and SAS 73%). Pathogenic/likely pathogenic germline variants in cancer-predisposition genes varied (16% EUR, 23% AFR, 8% EAS, and 0% SAS), and most occurred in CHEK2 in EUR (3.1%) and FH in AFR (15.4%). In patients with clear cell RCC, somatic alteration incidence varied with significant enrichment in BAP1 alterations (EUR 17%, AFR 50%, SAS 29%; p = .01). Comparing AFR and EUR groups within The Cancer Genome Atlas, significant differences were identified in angiogenesis and inflammatory pathways. CONCLUSION: Differences in clinical and molecular data by GA highlight population-specific variations in patients with RCC. Exploration of both genetic and nongenetic variables remains critical to optimize efforts to overcome health-related disparities.
Assuntos
Carcinoma de Células Renais , Neoplasias Renais , Humanos , Carcinoma de Células Renais/genética , Neoplasias Renais/genética , Etnicidade/genética , Genética Populacional , GenômicaRESUMO
Healthy ageing, which is the target of life' s later developmental stage, can be achieved through building a wise perspective towards life and existence. However, it may not be achievable for older people when the societal sources are limited. The TILDA project aimed to evaluate the associated factors with healthy ageing and to transfer that knowledge into practice. Hence, determining the perspectives of older people support and advocacy organisations on the enablers and facilitators of the healthy ageing strategies of TILDA is essential to gain a better understanding of the project and plan future strategies. This study aimed to investigate how the TILDA project has influenced or impacted upon these organisations from education, policy, or practice perspectives. The participants (n = 15) included in the study's sample were reached through representative organisations acting to support older people in the Republic of Ireland. Semi-structured interviews were conducted online via Zoom. A systematic thematic data analysis procedure was followed, and three themes emerged from the qualitative data, revealing the perceptions of participants about the TILDA project: (1) Limitations of TILDA, (2) Contributions of TILDA, and (3) Future recommendations for TILDA. In conclusion, among the disadvantages of TILDA, the most significant is not being representative and visible enough; it is evident that it is pivotal to develop a more inclusive culture of TILDA with close cooperation and effective marketing strategies. It is also apparent that TILDA has several advantages that include providing insights into ageing and rich data to plan future support for older people.
Assuntos
Pesquisa Qualitativa , Humanos , Irlanda , Estudos Longitudinais , Idoso , Feminino , Masculino , Envelhecimento Saudável/psicologia , Participação dos Interessados , Envelhecimento/psicologia , Pessoa de Meia-IdadeRESUMO
Following the UN Human Rights Declaration in 1948, much effort has been undertaken to formalize the rights of older people. This article aims to highlight the role of education in advancing the rights of older people. Raising awareness and sharing knowledge about the rights of older people through rights-based education can empower students, when entering their field of work, to be advocates for rights within their employment settings and local communities. The effectiveness of a rights-based educational training for organizations working with refugees in Jordan, which took place in Amman in January 2020, is analyzed using the participant-focused Transformative Human Rights Education (THRED) as a framing structure. Our analysis found that training participants became active in promoting the rights of older people in their workplaces. The rights of older people need to be more than a conversation, and transformational change that promotes rights can occur when people feel empowered to undertake action-oriented advocacy. The case study analysis provides an example of how influential participant-centered pedagogy, such as THRED, can be to help students in gerontology programs become active agents in promoting rights of older people in their workplaces, communities, and ultimately influencing the international dialogue.
RESUMO
The treatment of metastatic renal cell carcinoma (RCC) has been revolutionized by advances in immunotherapeutic and targeted agents. Therapeutic approaches to RCC in these categories have recently evolved to include immune checkpoint inhibitors, novel vascular endothelial growth factor receptor-targeting tyrosine kinase inhibitors, and combinations of those agents. Multiple regimens within each category have been approved for use in the first-line treatment of clear cell and non-clear cell RCC. However, few of these regimens have been directly compared, leading to a new clinical challenge for physicians: how to select a first-line treatment regimen for an individual patient from among multiple approved options. In the modern era of RCC management, the initial treatment selection therefore becomes highly personalized and depends on numerous patient-specific factors, including histopathologic and clinical features of the disease, comorbid conditions, and psychosocial and economic factors. This review details current first-line treatment options for the management of metastatic RCC and proposes a framework whereby treatment selection can be optimized for individual patients.
Assuntos
Antineoplásicos , Carcinoma de Células Renais , Neoplasias Renais , Humanos , Carcinoma de Células Renais/tratamento farmacológico , Neoplasias Renais/tratamento farmacológico , Neoplasias Renais/patologia , Fator A de Crescimento do Endotélio Vascular/uso terapêutico , Antineoplásicos/uso terapêutico , ImunoterapiaRESUMO
OBJECTIVE: Our objective was to determine modifiable risk factors associated with surgical site infection (SSI) and postpartum endometritis. We hypothesized that inappropriate surgical antibiotic prophylaxis would be a risk factor for both types of infections. STUDY DESIGN: This was a single-center case-control study of SSI and endometritis after cesarean delivery over a 2-year period from 2016 to 2017. Cases were identified by International Classification of Diseases, 10th Revision diagnosis codes, infection control surveillance, and electronic medical records search and were subsequently confirmed by chart review. Three controls were randomly selected for each case from all cesareans ± 48 hours from case delivery. Demographic, pregnancy, and delivery characteristics were abstracted. Separate multivariable logistic regression models were used to assess factors associated with SSI and endometritis. Postpartum outcomes, including length of stay and readmission, were also compared. RESULTS: We identified 141 cases of SSI and endometritis with an overall postpartum infection rate of 4.0% among all cesarean deliveries. In adjusted analysis, factors associated with both SSI and endometritis were intrapartum delivery, classical or other (non-low-transverse) uterine incision, and blood transfusion. Factors associated with SSI only included inadequate antibiotic prophylaxis, public insurance, hypertensive disorder of pregnancy, and nonchlorhexidine abdominal preparation; factors only associated with endometritis included ß-lactam allergy, anticoagulation therapy, and chorioamnionitis. Among cases, 34% of those with SSI and 25% of those with endometritis did not receive adequate antibiotic prophylaxis, compared with 12.9 and 13.5% in control groups, respectively. Failure to receive appropriate antibiotic prophylaxis was associated with an increased risk of SSI (adjusted odds ratio [aOR]: 4.4, 95% confidence interval [CI]: 1.3-15.6) but not endometritis (aOR 0.9, 95% CI 0.4-2.0). CONCLUSION: Inadequate surgical antibiotic prophylaxis was associated with an increased risk of SSI but not postpartum endometritis, highlighting the different mechanisms of these infections and the importance of prioritizing adequate surgical prophylaxis. Additional potentially modifiable factors which emerged included blood transfusion and chlorhexidine skin preparation. KEY POINTS: · Inadequate antibiotic prophylaxis is associated with a four-fold risk in surgical site infections.. · The most common cause for failure to achieve adequate surgical prophylaxis was inappropriate timing of antibiotics at or after skin incision.. · Blood transfusions are strongly associated (>10-fold risk) with both SSI and endometritis..
RESUMO
Dr. Francis G. Caro, retired Professor of Gerontology at the University of Massachusetts Boston, Co-editor (1996-2005) and Editor-in-Chief (2005-2016) of the Journal of Aging and Social Policy, passed away on October 2, 2020. Caro dedicated most of his nearly 60 years of academic and professional activity to gerontology and services for older adults. This article offers a review of his contributions in four central areas of gerontology: the strengthening of long-term services and supports through integration of home care services with other domains, the expansion of how productive aging was socially understood and economically valued, the importance of rigorous program evaluation and ongoing methodological innovation, and the significance of age-friendly cities and communities, both in the United States and internationally. This review of Caro's work highlights his integral role in helping to place several topics on the gerontological agenda that are still relevant today, establishing him as an important contributor to the field. He also exemplified productive aging and how scholarship can be theoretically rigorous but also applied in meaningful ways to make a difference in individual lives and within communities.
Assuntos
Bolsas de Estudo , Geriatria , Idoso , Envelhecimento , Cidades , Humanos , Masculino , Avaliação de Programas e Projetos de Saúde , Estados UnidosRESUMO
OBJECTIVE: The objective of this study was to evaluate the negative predictive value (NPV) of a rapid influenza diagnostic test (RIDT) compared with polymerase chain reaction (PCR) in pregnant women. STUDY DESIGN: Retrospective cohort study of pregnant women with a negative RIDT followed by confirmatory PCR for influenza A, H1N1, and B during the influenza seasons from 2012 to 2015. RESULTS: The NPV of the RIDT was 85.4% (211 of 247), 93.5% (231 of 247), and 97.9% (242 of 247) for influenza A, H1N1, and B, respectively. Antiviral treatment was administered to 47.2% (17 of 36) of women with a false-negative RIDT for influenza A compared with 9.0% (19 of 211) of women with a true-negative RIDT (p< 0.001). Patients were more likely to receive antiviral treatment if they were feverish (adjusted odds ratio [aOR]: 6.05, 95% confidence interval [CI]: 1.83-20.03), had cough (aOR: 6.43, 95% CI: 1.06-39.26), dyspnea (aOR: 6.41, 95% CI: 1.63-25.29), or had a subsequently positive PCR (aOR: 9.41, 95% CI: 3.13-28.31). CONCLUSION: Up to 14.5% of women with a negative RIDT in pregnancy had positive influenza A by PCR of whom more than half did not receive antiviral treatment.
Assuntos
Antivirais/uso terapêutico , Betainfluenzavirus/isolamento & purificação , Vírus da Influenza A Subtipo H1N1/isolamento & purificação , Influenza Humana , Adulto , Testes Diagnósticos de Rotina/estatística & dados numéricos , Reações Falso-Negativas , Feminino , Humanos , Influenza Humana/diagnóstico , Influenza Humana/tratamento farmacológico , Influenza Humana/epidemiologia , Influenza Humana/virologia , Reação em Cadeia da Polimerase/estatística & dados numéricos , Valor Preditivo dos Testes , Gravidez , Complicações Infecciosas na Gravidez/diagnóstico , Complicações Infecciosas na Gravidez/tratamento farmacológico , Complicações Infecciosas na Gravidez/epidemiologia , Complicações Infecciosas na Gravidez/virologia , Estudos RetrospectivosRESUMO
Developing selective strategies to treat metastatic cancers remains a significant challenge. Herein, we report the first antibody-recruiting small molecule (ARM) that is capable of recognizing the urokinase-type plasminogen activator receptor (uPAR), a uniquely overexpressed cancer cell-surface marker, and facilitating the immune-mediated destruction of cancer cells. A co-crystal structure of the ARM-U2/uPAR complex was obtained, representing the first crystal structure of uPAR complexed with a non-peptide ligand. Finally, we demonstrated that ARM-U2 substantially suppresses tumor growth inâ vivo with no evidence of weight loss, unlike the standard-of-care agent doxorubicin. This work underscores the promise of antibody-recruiting molecules as immunotherapeutics for treating cancer.
Assuntos
Anticorpos/imunologia , Metástase Neoplásica/imunologia , Ativador de Plasminogênio Tipo Uroquinase/metabolismo , Cristalografia por Raios X , Humanos , Neoplasias/patologiaAssuntos
Escolha da Profissão , Mobilidade Ocupacional , Geriatria , Saúde Global , Ensino , Feminino , Humanos , PesquisaRESUMO
This article reports the design, synthesis, and evaluation of a novel class of molecules of intermediate size (approximately 7000 Da), which possess both the targeting and effector functions of antibodies. These compoundscalled synthetic antibody mimics targeting prostate cancer (SyAM-Ps)bind simultaneously to prostate-specific membrane antigen and Fc gamma receptor I, thus eliciting highly selective cancer cell phagocytosis. SyAMs have the potential to combine the advantages of both small-molecule and biologic therapies, and may address many drawbacks associated with available treatments for cancer and other diseases.
Assuntos
Anticorpos/metabolismo , Materiais Biomiméticos/síntese química , Materiais Biomiméticos/farmacologia , Desenho de Fármacos , Antígenos de Superfície/química , Antígenos de Superfície/metabolismo , Materiais Biomiméticos/metabolismo , Linhagem Celular Tumoral , Técnicas de Química Sintética , Glutamato Carboxipeptidase II/química , Glutamato Carboxipeptidase II/metabolismo , Humanos , Simulação de Acoplamento Molecular , Peso Molecular , Fagocitose/efeitos dos fármacos , Conformação Proteica , Receptores de IgG/metabolismoRESUMO
An endless number of career trajectories are possible for gerontologists. With a growing aging population, our skills and areas of expertise are of high value to numerous industries. The purpose of this study is to describe the professional development and career trajectories of alumni of U.S. doctoral gerontology programs obtained through the Gerontology Education Longitudinal Study (GELS). Specifically, the authors examine how professional identification, doctoral program career preparation, and perception of job prospects affect alumni decisions to pursue "traditional" (i.e., academic) versus "nontraditional" (i.e., non-academic) careers. Results from the GELS revealed a fairly even split in the alumni sample of careers in traditional and nontraditional settings. The decision to pursue a traditional versus nontraditional career was not significantly associated with personal identification, doctoral program career preparation, or perception of employment options. These results suggest that the skill set obtained in doctoral gerontology programs is useful and is in demand in a variety of careers; therefore, doctoral programs may want to consider tailoring training to meet students' future career goals in both academic and non-academic settings.
Assuntos
Escolha da Profissão , Mobilidade Ocupacional , Educação de Pós-Graduação , Geriatria/educação , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Inquéritos e Questionários , Estados UnidosRESUMO
OBJECTIVES: Patients with metastatic renal cell carcinoma (mRCC) face complex treatment decisions and frequently turn to the Internet for treatment information. The content of patient educational websites about mRCC treatment has not been evaluated. This study evaluated the accuracy, readability, and quality of websites about the treatment of mRCC. METHODS: A total of 2,700 Internet queries were performed. Across 3 Internet search engines, 25 links of 36 permutations of mRCC keywords and their synonyms were screened for eligibility. Eligible websites were English-language websites containing information about mRCC treatments. Sponsored, social media, provider-facing, and news websites were excluded. Accuracy of eligible websites was evaluated in 2 domains: (1) Completeness by calculating the percentage of mRCC facts included in websites using an investigator-created checklist based on the NCI's RCC Treatment (PDQ®)-patient version, and (2) Correctness by identifying incorrect statements that were inconsistent with guidelines. Websites containing ≥60% of checklist items had a "passing" completeness score. Incorrect statements were tallied and qualitatively categorized. Readability was evaluated using the Fry and SMOG formulae, which calculate reading grade levels. Quality was evaluated using validated instruments that appraise health information quality: QUEST (scored 0-28), which focuses on online information, and DISCERN (scored 16-80), which focuses on treatment choices. RESULTS: Thirty-nine websites were analyzed. Mean completeness score was 30% (range 0%-69%); only 2 (5%) websites had a passing score. Twelve (31%) websites had ≥1 incorrect statement, such as listing homeopathy or hormone therapy as mRCC treatment options, or including outdated statements. Mean readability levels were 11th and 12th grades for the Fry and SMOG methods, respectively. No website had a reading level lower than 9th grade. Mean QUEST score was 19 (range 9-28); authorship, complementarity, and currency items had the lowest scores. Mean DISCERN score was 56 (range 42-76), with 7 (18%) websites rated "excellent", 22 (56%) rated "good", and 10 (26%) rated fair. CONCLUSIONS: Many websites about mRCC treatment have incomplete, inaccurate, and unreadable information. Quality is highly variable. Efforts to improve accuracy, readability, and quality are needed to ensure that patients with mRCC can make well-informed treatment decisions and avoid harm from misinformation.
Assuntos
Carcinoma de Células Renais , Compreensão , Internet , Neoplasias Renais , Humanos , Carcinoma de Células Renais/tratamento farmacológico , Carcinoma de Células Renais/terapia , Neoplasias Renais/terapia , Neoplasias Renais/tratamento farmacológico , Educação de Pacientes como Assunto/normas , Informação de Saúde ao Consumidor/normasRESUMO
Background and purpose: Lung cancer is a leading cause of cancer-related mortality, and stereotactic body radiotherapy (SBRT) has become a standard treatment for early-stage lung cancer. However, the heterogeneous response to radiation at the tumor level poses challenges. Currently, standardized dosage regimens lack adaptation based on individual patient or tumor characteristics. Thus, we explore the potential of delta radiomics from on-treatment magnetic resonance (MR) imaging to track radiation dose response, inform personalized radiotherapy dosing, and predict outcomes. Materials and methods: A retrospective study of 47 MR-guided lung SBRT treatments for 39 patients was conducted. Radiomic features were extracted using Pyradiomics, and stability was evaluated temporally and spatially. Delta radiomics were correlated with radiation dose delivery and assessed for associations with tumor control and survival with Cox regressions. Results: Among 107 features, 49 demonstrated temporal stability, and 57 showed spatial stability. Fifteen stable and non-collinear features were analyzed. Median Skewness and surface to volume ratio decreased with radiation dose fraction delivery, while coarseness and 90th percentile values increased. Skewness had the largest relative median absolute changes (22 %-45 %) per fraction from baseline and was associated with locoregional failure (p = 0.012) by analysis of covariance. Skewness, Elongation, and Flatness were significantly associated with local recurrence-free survival, while tumor diameter and volume were not. Conclusions: Our study establishes the feasibility and stability of delta radiomics analysis for MR-guided lung SBRT. Findings suggest that MR delta radiomics can capture short-term radiographic manifestations of the intra-tumoral radiation effect.
RESUMO
Objective.We aim to: (1) quantify the benefits of lung sparing using non-adaptive magnetic resonance guided stereotactic body radiotherapy (MRgSBRT) with advanced motion management for peripheral lung cancers compared to conventional x-ray guided SBRT (ConvSBRT); (2) establish a practical decision-making guidance metric to assist a clinician in selecting the appropriate treatment modality.Approach.Eleven patients with peripheral lung cancer who underwent breath-hold, gated MRgSBRT on an MR-guided linear accelerator (MR linac) were studied. Four-dimensional computed tomography (4DCT)-based retrospective planning using an internal target volume (ITV) was performed to simulate ConvSBRT, which were evaluated against the original MRgSBRT plans. Metrics analyzed included planning target volume (PTV) coverage, various lung metrics and the generalized equivalent unform dose (gEUD). A dosimetric predictor for achievable lung metrics was derived to assist future patient triage across modalities.Main results.PTV coverage was high (median V100% > 98%) and comparable for both modalities. MRgSBRT had significantly lower lung doses as measured by V20 (median 3.2% versus 4.2%), mean lung dose (median 3.3 Gy versus 3.8 Gy) and gEUD. Breath-hold, gated MRgSBRT resulted in an average reduction of 47% in PTV volume and an average increase of 19% in lung volume. Strong correlation existed between lung metrics and the ratio of PTV to lung volumes (RPTV/Lungs) for both modalities, indicating that RPTV/Lungsmay serve as a good predictor for achievable lung metrics without the need for pre-planning. A threshold value of RPTV/Lungs< 0.035 is suggested to achieve V20 < 10% using ConvSBRT. MRgSBRT should otherwise be considered if the threshold cannot be met.Significance.The benefits of lung sparing using MRgSBRT were quantified for peripheral lung tumors; RPTV/Lungswas found to be an effective predictor for achievable lung metrics across modalities. RPTV/Lungscan assist a clinician in selecting the appropriate modality without the need for labor-intensive pre-planning, which has significant practical benefit for a busy clinic.
Assuntos
Tomografia Computadorizada Quadridimensional , Neoplasias Pulmonares , Pulmão , Imageamento por Ressonância Magnética , Radiocirurgia , Dosagem Radioterapêutica , Planejamento da Radioterapia Assistida por Computador , Humanos , Radiocirurgia/métodos , Neoplasias Pulmonares/radioterapia , Neoplasias Pulmonares/diagnóstico por imagem , Planejamento da Radioterapia Assistida por Computador/métodos , Imageamento por Ressonância Magnética/métodos , Pulmão/diagnóstico por imagem , Estudos Retrospectivos , Tomografia Computadorizada Quadridimensional/métodos , Masculino , Feminino , Radioterapia Guiada por Imagem/métodos , Suspensão da Respiração , Idoso , Pessoa de Meia-Idade , Tratamentos com Preservação do Órgão/métodos , Órgãos em RiscoRESUMO
Manual segmentation of tumors and organs-at-risk (OAR) in 3D imaging for radiation-therapy planning is time-consuming and subject to variation between different observers. Artificial intelligence (AI) can assist with segmentation, but challenges exist in ensuring high-quality segmentation, especially for small, variable structures, such as the esophagus. We investigated the effect of variation in segmentation quality and style of physicians for training deep-learning models for esophagus segmentation and proposed a new metric, edge roughness, for evaluating/quantifying slice-to-slice inconsistency. This study includes a real-world cohort of 394 patients who each received radiation therapy (mainly for lung cancer). Segmentation of the esophagus was performed by 8 physicians as part of routine clinical care. We evaluated manual segmentation by comparing the length and edge roughness of segmentations among physicians to analyze inconsistencies. We trained eight multiple- and individual-physician segmentation models in total, based on U-Net architectures and residual backbones. We used the volumetric Dice coefficient to measure the performance for each model. We proposed a metric, edge roughness, to quantify the shift of segmentation among adjacent slices by calculating the curvature of edges of the 2D sagittal- and coronal-view projections. The auto-segmentation model trained on multiple physicians (MD1-7) achieved the highest mean Dice of 73.7 ± 14.8%. The individual-physician model (MD7) with the highest edge roughness (mean ± SD: 0.106 ± 0.016) demonstrated significantly lower volumetric Dice for test cases compared with other individual models (MD7: 58.5 ± 15.8%, MD6: 67.1 ± 16.8%, p < 0.001). A multiple-physician model trained after removing the MD7 data resulted in fewer outliers (e.g., Dice ≤ 40%: 4 cases for MD1-6, 7 cases for MD1-7, Ntotal = 394). While we initially detected this pattern in a single clinician, we validated the edge roughness metric across the entire dataset. The model trained with the lowest-quantile edge roughness (MDER-Q1, Ntrain = 62) achieved significantly higher Dice (Ntest = 270) than the model trained with the highest-quantile ones (MDER-Q4, Ntrain = 62) (MDER-Q1: 67.8 ± 14.8%, MDER-Q4: 62.8 ± 15.7%, p < 0.001). This study demonstrates that there is significant variation in style and quality in manual segmentations in clinical care, and that training AI auto-segmentation algorithms from real-world, clinical datasets may result in unexpectedly under-performing algorithms with the inclusion of outliers. Importantly, this study provides a novel evaluation metric, edge roughness, to quantify physician variation in segmentation which will allow developers to filter clinical training data to optimize model performance.
Assuntos
Aprendizado Profundo , Humanos , Inteligência Artificial , Tórax , Algoritmos , Tomografia Computadorizada por Raios X , Processamento de Imagem Assistida por Computador/métodosRESUMO
PURPOSE: Disease progression after definitive stereotactic body radiation therapy (SBRT) for early-stage non-small cell lung cancer (NSCLC) occurs in 20-40% of patients. Here, we explored published and novel pre-treatment CT and PET radiomics features to identify patients at risk of progression. MATERIALS/METHODS: Published CT and PET features were identified and explored along with 15 other CT and PET features in 408 consecutively treated early-stage NSCLC patients having CT and PET < 3 months pre-SBRT (training/set-aside validation subsets: n = 286/122). Features were associated with progression-free survival (PFS) using bootstrapped Cox regression (Bonferroni-corrected univariate predictor: p ≤ 0.002) and only non-strongly correlated predictors were retained (|Rs|<0.70) in forward-stepwise multivariate analysis. RESULTS: Tumor diameter and SUVmax were the two most frequently reported features associated with progression/survival (in 6/20 and 10/20 identified studies). These two features and 12 of the 15 additional features (CT: 6; PET: 6) were candidate PFS predictors. A re-fitted model including diameter and SUVmax presented with the best performance (c-index: 0.78; log-rank p-value < 0.0001). A model built with the two best additional features (CTspiculation1 and SUVentropy) had a c-index of 0.75 (log-rank p-value < 0.0001). CONCLUSIONS: A re-fitted pre-treatment model using the two most frequently published features - tumor diameter and SUVmax - successfully stratified early-stage NSCLC patients by PFS after receiving SBRT.
Assuntos
Carcinoma Pulmonar de Células não Pequenas , Neoplasias Pulmonares , Radiocirurgia , Carcinoma de Pequenas Células do Pulmão , Humanos , Carcinoma Pulmonar de Células não Pequenas/diagnóstico por imagem , Carcinoma Pulmonar de Células não Pequenas/radioterapia , Neoplasias Pulmonares/diagnóstico por imagem , Neoplasias Pulmonares/radioterapia , Radiômica , Fluordesoxiglucose F18 , Tomografia por Emissão de Pósitrons , Tomografia Computadorizada por Raios X , Tomografia por Emissão de Pósitrons combinada à Tomografia Computadorizada , Estudos Retrospectivos , PrognósticoRESUMO
Treatment options are limited for patients with non-clear cell renal cell carcinoma (nccRCC). Patients with nccRCC experienced a favorable objective response rate (ORR) in a phase 2 trial of cabozantinib plus nivolumab. We now report updated efficacy and safety results at median follow-up of 34 mo for patients with papillary, unclassified, or translocation-associated RCC. Cabozantinib and nivolumab were administered at standard doses to patients with metastatic nccRCC that had progressed on zero or one line of systemic therapy. The primary endpoint was the ORR according to Response Evaluation Criteria in Solid Tumors v1.1. Secondary endpoints included progression-free survival (PFS), overall survival (OS), and adverse events. Forty patients were treated. At median follow-up of 34 mo for survivors, the ORR was 48% (95% confidence interval [CI] 31.5-63.9%). Median PFS was 13 mo (95% CI 7-16); the 12-mo and 24-mo PFS rates were 51% (95% CI 34-65%) and 23% (95% CI 11-37%), respectively. Median OS was 28 mo (95% CI 23-43); the 18-mo and 36-mo OS rates were 70% (95% CI 53-82%) and 44% (95% CI 28-60%), respectively. No new safety signals were seen with cabozantinib and nivolumab. This extended follow-up analysis demonstrates promising efficacy, and highlights the potential for sustained responses with cabozantinib plus nivolumab in patients with metastatic nccRCC.
Assuntos
Anilidas , Protocolos de Quimioterapia Combinada Antineoplásica , Carcinoma de Células Renais , Neoplasias Renais , Nivolumabe , Piridinas , Humanos , Anilidas/uso terapêutico , Nivolumabe/uso terapêutico , Nivolumabe/efeitos adversos , Piridinas/uso terapêutico , Neoplasias Renais/tratamento farmacológico , Neoplasias Renais/patologia , Neoplasias Renais/mortalidade , Carcinoma de Células Renais/tratamento farmacológico , Carcinoma de Células Renais/secundário , Carcinoma de Células Renais/mortalidade , Masculino , Feminino , Pessoa de Meia-Idade , Idoso , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Adulto , Intervalo Livre de Progressão , Resultado do TratamentoRESUMO
Established in 2006, the Irish Longitudinal Study on Ageing (TILDA) investigates the health, economic and social circumstances of a nationally-representative sample of people aged fifty years and older in a series of biennial data collection waves. Irish newspapers have been reporting the results of TILDA for over a decade and a half, and their texts represent reports of scientific research distilled through the pen of journalists. In their totality, their texts constitute a public discourse on ageing and health. Using critical discourse analysis, we examined the discourse within the texts of a purposive sample of two national daily newspapers. As sites of public discourse, newspapers reflect social life and are influential in forming and legitimating public attitudes. Like other sites of discourse, their language-in-use is contextually located, is rarely neutral and may employ strategies to discursively construct, sustain and privilege particular social identities, including ageing identities. Discursively constructed as 'ageing well', our analysis of newspaper texts revealed a discernible meta-discourse on ageing and health in which ageing was framed as a life course stage that may be cultivated, diligently self-nurtured and exploited for its positive aspects. When considered in light of literature on health and social inequalities, the consequences of this broadly positive ageing discourse can, somewhat perversely, frame older adults in unintended negative ways, including homogenising them and attributing to them capacities for ageing well that they may not possess. Discursively constructing older adults as a social and economic resource can also impose unrealistic expectations on them and may legitimise exploitation and demonstrate how normative ideologies of ageism and ableism are conveyed through legitimising language. Despite these potentially unintended consequences, the available media resources associated with TILDA may represent one of the most important contributions of the study, in terms of informing positive public attitudes towards ageing.
Assuntos
Envelhecimento , Opinião Pública , Humanos , Idoso , Estudos Longitudinais , Fatores Socioeconômicos , Projetos de PesquisaRESUMO
Methylglyoxal (MGO), a dicarbonyl metabolite produced by all living cells, has been associated with a number of human diseases. However, studies of the role(s) MGO plays biologically have been handicapped by a lack of direct methods for its monitoring and detection. To address this limitation, we have developed a fluorescent sensor (methyl diaminobenzene-BODIPY, or "MBo") that can detect MGO under physiological conditions. We show that MBo is selective for MGO over other biologically relevant dicarbonyls and is suitable for detecting MGO in complex environments, including that of living cells. In addition, we demonstrate MBo's utility in estimating plasma concentrations of MGO. The results reported herein have the potential to advance both clinical and basic science research and practice.