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1.
Can J Neurol Sci ; : 1-9, 2024 Apr 29.
Artigo em Inglês | MEDLINE | ID: mdl-38679923

RESUMO

The rising burden of neurological disorders poses significant challenges to healthcare systems worldwide. There has been an increasing momentum to apply integrated approaches to the management of several chronic illnesses in order to address systemic healthcare challenges and improve the quality of care for patients. The aim of this paper is to provide a narrative review of the current landscape of integrated care in neurology. We identified a growing body of research from countries around the world applying a variety of integrated care models to the treatment of common neurological conditions. Based on our findings, we discuss opportunities for further study in this area. Finally, we discuss the future of integrated care in Canada, including unique geographic, historical, and economic considerations, and the role that integrated care may play in addressing challenges we face in our current healthcare system.

2.
BMC Palliat Care ; 23(1): 13, 2024 Jan 11.
Artigo em Inglês | MEDLINE | ID: mdl-38212765

RESUMO

PURPOSE: In this study, we aimed to assess the clinical characteristics, reasons for referral, and outcomes of patients with brain metastases (BM) referred to the supportive care center. METHODS: Equal numbers of patients with melanoma, breast cancer, and lung cancer with (N = 90) and without (N = 90) BM were retrospectively identified from the supportive care database for study. Descriptive statistics were used to analyze demographic, disease, and clinical data. Kaplan Meier method was used to evaluate survival outcomes. RESULTS: While physical symptom management was the most common reason for referral to supportive care for both patients with and without BM, patients with BM had significantly lower pain scores on ESAS at time of referral (p = 0.002). They had greater interaction with acute care in the last weeks of life, with higher rates of ICU admission, emergency room visits, and hospitalizations after initial supportive care (SC) visit. The median survival time from referral to Supportive Care Center (SCC) was 0.90 years (95% CI 0.73, 1.40) for the brain metastasis group and 1.29 years (95% CI 0.91, 2.29) for the group without BM. CONCLUSIONS: Patients with BM have shorter survival and greater interaction with acute care in the last weeks of life. This population also has distinct symptom burdens from patients without BM. Strategies to optimize integration of SC for patients with BM warrant ongoing study.


Assuntos
Neoplasias Encefálicas , Neoplasias da Mama , Neoplasias Pulmonares , Humanos , Feminino , Cuidados Paliativos/métodos , Estudos Retrospectivos , Neoplasias Encefálicas/terapia , Neoplasias Pulmonares/terapia
3.
Cancer ; 129(18): 2848-2855, 2023 09 15.
Artigo em Inglês | MEDLINE | ID: mdl-37227811

RESUMO

BACKGROUND: Collaborative relationships between academic oncology and industry (pharmaceutical, biotechnology, "omic," and medical device companies) are essential for therapeutic development in oncology; however, limited research on engagement in and perceptions of these relationships has been done. METHODS: Survey questions were developed to evaluate relationships between academic oncology and industry. An electronic survey was delivered to 1000 randomly selected members of the American Society of Clinical Oncology, a professional organization for oncologists, eliciting respondents' views around oncology-industry collaborations. The responses were analyzed according to prespecified plans. RESULTS: There were 225 survey respondents. Most were from the United States (70.0%), worked at an academic institution (60.1%), worked in medical oncology (81.2%), and had an active relationship with industry (85.8%). One quarter (26.7%) of respondents reported difficulty establishing a relationship with industry collaborators, and most respondents (75%) did not report having had mentorship in developing these relationships. The majority (85.3%) of respondents considered these collaborations important to their careers. Respondents generally thought that scientific integrity was preserved (92%), and most respondents (95%) had little concern over the quality of the collaborative product. Many (60%) shared concerns over potential conflict of interest if an individual with a compensated relationship promoted an industry product for clinical care/research, yet most respondents (67%) stated these relationships did not shape their interactions with patients. CONCLUSIONS: This study provides novel data characterizing the nature of collaborative relationships between clinicians, researchers, and industry in oncology. Although respondents considered these collaborations an important part of clinical and academic oncology, formal education or mentorship around these relationships was rare. Conflicting findings around conflict of interest highlight the importance of more dedicated research in this area. PLAIN LANGUAGE SUMMARY: Business enterprises in health care play a central role in cancer research and care, driving the development of new medical testing, drugs, and devices. Effective working relationships among clinicians, researchers, and these industry partners can promote innovative research and enhance patient care. Study of these collaborations has been limited to date. Through distribution of a questionnaire to cancer clinicians and researchers, we found that most participants consider these relationships valuable, though they find establishing such relationships challenging partly because of gaps in educational programs in this area. Our findings also highlight the need for further policy around the potential bias these relationships can introduce.


Assuntos
Neoplasias , Oncologistas , Humanos , Estados Unidos , Conflito de Interesses , Oncologia , Neoplasias/terapia , Comércio , Indústria Farmacêutica
4.
J Gen Intern Med ; 37(15): 3900-3906, 2022 11.
Artigo em Inglês | MEDLINE | ID: mdl-35419741

RESUMO

BACKGROUND: As health profession schools implement addiction curricula, they need survey instruments to evaluate the impact of the educational interventions. However, existing measures do not use current non-stigmatizing language and fail to capture core concepts. OBJECTIVE: To develop a brief measure of health profession student readiness to work with people who use drugs (PWUDs) and establish its content validity. METHODS: We conducted a literature review of existing instruments and desired clinical competencies related to providing care to PWUD and used results and expert feedback to create and revise a pool of 72 items. We conducted cognitive interviews with ten pre-clinical health profession students from various US schools of nursing, pharmacy, and medicine to ensure the items were easy to understand. Finally, we used a modified Delphi process with twenty-four health professions educators and addiction experts (eight each from nursing, pharmacy, and medicine) to select items for inclusion in the final scale. We analyzed expert ratings of individual items and interdisciplinary agreement on ratings to decide how to prioritize items. We ultimately selected 12 attitudes and 12 confidence items to include in the REadiness to Discuss Use, Common Effects, and HArm Reduction Measure (REDUCE-HARM). Experts rated their overall assessment of the final scale. RESULTS: Twenty-two of twenty-four experts agreed or strongly agreed that the attitudes scale measures student attitudes that impact readiness to work with PWUDs. Twenty-three of twenty-four experts agreed or strongly agreed that the confidence scale measures student self-efficacy in competencies that impact readiness to work with PWUDs. Seven of 72 initial items and none of the 24 selected items had statistically significant differences between disciplines. CONCLUSIONS: The REDUCE-HARM instrument has strong content validity and may serve as a useful tool in evaluating addiction education. Additional research is needed to establish its reliability, construct validity, and responsiveness to change.


Assuntos
Competência Clínica , Estudantes , Humanos , Reprodutibilidade dos Testes , Inquéritos e Questionários , Currículo
5.
Oncologist ; 26(11): e2021-e2033, 2021 11.
Artigo em Inglês | MEDLINE | ID: mdl-34156729

RESUMO

Hematopoietic stem cell transplant (HSCT) plays a central role in the treatment of hematologic cancers. With the increasing survival of patients after HSCT, survivorship issues experienced by this population have become an important outcome. Cognitive impairment is an established sequela of HSCT, with studies to date establishing its presence, associated risk factors, and clinical phenotype. There are multiple potential contributors to cognitive impairment after HSCT. Efforts are ongoing to further characterize its clinical phenotype, associated biomarkers, and biologic underpinnings. A fundamental knowledge of post-HSCT cognitive impairment is of value for all clinicians who interface with this population, and further academic efforts are needed to more fully understand the impact of this cancer treatment on brain health. IMPLICATIONS FOR PRACTICE: As survival outcomes after hematopoietic stem cell transplant (HSCT) improve, an awareness of the post-treatment challenges faced by this population has become central to its care. HSCT can have a sustained and broad impact on brain health, causing cognitive dysfunction, fatigue, disturbed mood, and sleep. In affected patients, autonomy, return to work, relationships, and quality of life may all be affected. A fundamental fluency in this area is important for clinicians interfacing with HSCT survivors, facilitating the identification and management of cognitive dysfunction and concurrent symptom clusters, and stimulating interest in these sequelae as areas for future clinical research.


Assuntos
Neoplasias Hematológicas , Transplante de Células-Tronco Hematopoéticas , Neoplasias Hematológicas/terapia , Transplante de Células-Tronco Hematopoéticas/efeitos adversos , Humanos , Fenótipo , Qualidade de Vida
6.
Childs Nerv Syst ; 37(5): 1563-1572, 2021 05.
Artigo em Inglês | MEDLINE | ID: mdl-33404712

RESUMO

PURPOSE: We describe large-scale demographic, initial treatment, and outcomes data for pediatric grade II gliomas included in the National Cancer Database from 2004 to 2014. METHODS: Our cohort included cases less than 21 years of age with pathology-confirmed disease. Logistic regressions were used to evaluate the use of chemotherapy (CT) and radiation therapy (RT). Overall survival (OS) rates were determined using Kaplan-Meier estimates and the log-rank test. RESULTS: We identified 803 cases with astrocytoma (56.2%), oligodendroglioma (26.0%), and mixed glioma/glioma NOS (17.8%) histologies. Most cases underwent surgical resection (n = 661). Whereas cases 16 to 21 years of age were more likely than cases 0 to 5 years to receive RT (OR = 7.38, 95% CI 3.58-15.21, p < 0.001), they were less likely to receive CT (OR = 0.34, 95% CI 0.22-0.52, p < 0.001). The 5-year OS rates for all cases, cases that underwent surgical resection, and cases managed with biopsy were 87.5%, 92.7%, and 63.6%, respectively. CONCLUSION: In one of the largest series of pediatric grade II gliomas, astrocytoma was the most common histology. Patterns of care and OS outcomes were similar to grade I gliomas, with surgical resection being the most common initial treatment and associated with a favorable rate of OS. Younger patients were more likely to receive post-operative CT and the use of RT increased with age.


Assuntos
Astrocitoma , Neoplasias Encefálicas , Glioma , Oligodendroglioma , Adulto , Neoplasias Encefálicas/diagnóstico , Neoplasias Encefálicas/terapia , Criança , Pré-Escolar , Glioma/diagnóstico , Glioma/terapia , Humanos , Lactente , Recém-Nascido , Estimativa de Kaplan-Meier
7.
Adv Exp Med Biol ; 1342: 417-429, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34972978

RESUMO

Immunotherapy has revolutionized treatment of cancer over the past two decades. The antitumor effects of immunotherapy approaches are at the expense of growing spectrum of immune-related adverse events (irAEs) due to cross-reactivity between the tumor and normal host tissue. These adverse events can happen in any organ and range from mild to severe and even life-threatening conditions. While neurological irAEs associated with immune checkpoint inhibitors (CPIs) are rare, they pose a significant challenge in management as the clinical phenotypes are heterogenous and frequently necessitate cessation of therapy and systemic immune suppression and lead to transient functional decline. On the other hand, immune effector cell-associated neurotoxicity (ICANS) is common, frequently occurs in conjunction with cytokine release syndrome (CRS), and poses a significant clinical challenge to the development and widespread use of these effective therapies. Early recognition of these neurological syndromes, timely diagnosis, and thoughtful management are key for further clinical development of these effective therapies in cancer patients. Here, we describe clinical phenotypes of CPI-induced neurological complications and ICANS and discuss steps in clinical monitoring, diagnosis, and effective management.


Assuntos
Neoplasias , Síndromes Neurotóxicas , Humanos , Fatores Imunológicos , Imunoterapia/efeitos adversos , Neoplasias/tratamento farmacológico , Síndromes Neurotóxicas/etiologia , Síndromes Neurotóxicas/terapia
8.
Curr Neurol Neurosci Rep ; 20(7): 27, 2020 06 08.
Artigo em Inglês | MEDLINE | ID: mdl-32514633

RESUMO

PURPOSE OF REVIEW: This review provides clinical characterization and approach to management of neurotoxicities associated with checkpoint inhibitor therapy and chimeric antigen receptor T cell (CAR T cell) therapy. RECENT FINDINGS: Immuno-oncology has revolutionized cancer treatment. The immunomodulatory effect of these treatments extends beyond the targeted cancers; however, with a range of immune-mediated toxicities being associated with these therapies. Both the peripheral and central nervous system are vulnerable to these toxicities, with several distinct clinical syndromes strongly associated with specific immunotherapies. Neurologic immune-related adverse events are significant sequelae of both checkpoint inhibitors and CAR T cell therapy. In addition to clinical characterization of these syndromes, an understanding of the biologic underpinnings of these sequelae is essential. This will facilitate identification of patients at risk of these toxicities, develop treatments to prevent them and identify more effective clinical treatment when they occur.


Assuntos
Neoplasias , Síndromes Neurotóxicas , Humanos , Imunoterapia/efeitos adversos , Neoplasias/terapia
9.
Brain Topogr ; 33(1): 135-142, 2020 01.
Artigo em Inglês | MEDLINE | ID: mdl-31745689

RESUMO

Being able to predict who will likely experience cancer related cognitive impairment (CRCI) could enhance patient care and potentially reduce economic and human costs associated with this adverse event. We aimed to determine if post-treatment patient reported CRCI could also be predicted from baseline resting state fMRI in patients with breast cancer. 76 newly diagnosed patients (n = 42 planned for chemotherapy; n = 34 not planned for chemotherapy) and 50 healthy female controls were assessed at 3 times points [T1 (prior to treatment); T2 (1 month post chemotherapy); T3 (1 year after T2)], and at yoked intervals for controls. Data collection included self-reported executive dysfunction, memory function, and psychological distress and resting state fMRI data converted to connectome matrices for each participant. Statistical analyses included linear mixed modeling, independent t tests, and connectome-based predictive modeling (CPM). Executive dysfunction increased over time in the chemotherapy group and was stable in the other two groups (p < 0.001). Memory function decreased over time in both patient groups compared to controls (p < 0.001). CPM models successfully predicted executive dysfunction and memory function scores (r > 0.31, p < 0.002). Support vector regression with a radial basis function (SVR RBF) showed the highest performance for executive dysfunction and memory function (r = 0.68; r = 0.44, p's < 0.001). Baseline neuroimaging may be useful for predicting patient reported cognitive outcomes which could assist in identifying patients in need of surveillance and/or early intervention for treatment-related cognitive effects.


Assuntos
Neoplasias da Mama , Cognição/fisiologia , Disfunção Cognitiva/induzido quimicamente , Disfunção Cognitiva/fisiopatologia , Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos , Imageamento por Ressonância Magnética , Adulto , Cognição/efeitos dos fármacos , Conectoma , Tratamento Farmacológico , Feminino , Humanos , Memória/efeitos dos fármacos , Memória/fisiologia , Pessoa de Meia-Idade , Neuroimagem , Medidas de Resultados Relatados pelo Paciente
10.
Psychooncology ; 28(1): 131-138, 2019 01.
Artigo em Inglês | MEDLINE | ID: mdl-30315720

RESUMO

OBJECTIVE: Impaired neurocognitive function (NCF) is a well-established consequence of pediatric medulloblastoma (MB) and its treatments. However, the frequency and features of neurocognitive dysfunction in adult-onset MB patients are largely unknown. METHODS: Adult patients (≥ 18 years) with MB who had received formal neurocognitive evaluation (N = 27) were identified. Demographic, medical, and treatment histories were extracted from the medical record. Lesion properties on MRI were analyzed and used to evaluate lesion-symptom mapping further. Demographically adjusted z-scores were calculated for each neurocognitive test and used to assess impairment frequency. Regression analyses were conducted to identify clinical and paraclinical factors associated with impaired NCF. RESULTS: Mean age of the patient sample was 33 years (SD = 11) at the time of MB diagnosis. Prior therapy included surgical resection (89%), radiation (70%), and chemotherapy (26%). A significant proportion of patients were impaired on tests of verbal learning and memory (32%), executive function (29%), and naming (18%). Age, education, lesion size, time from surgery, and number of chemotherapy cycles had the greatest contribution to test performance in random-forest regression models. CONCLUSION: This study identifies frequent impairment of NCF in adult patients with MB, particularly in the domains of learning and memory and executive function. Neurocognitive impairment is influenced by patients' demographic, disease, and treatment history. Further study is warranted to characterize the clinical impact of adult MB more fully.


Assuntos
Neoplasias Cerebelares/fisiopatologia , Disfunção Cognitiva/etnologia , Meduloblastoma/fisiopatologia , Adulto , Neoplasias Cerebelares/complicações , Transtornos Cognitivos/etiologia , Disfunção Cognitiva/psicologia , Função Executiva , Feminino , Humanos , Aprendizagem , Masculino , Meduloblastoma/complicações , Memória/fisiologia , Testes Neuropsicológicos , Adulto Jovem
11.
Headache ; 58(9): 1442-1453, 2018 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-30152015

RESUMO

BACKGROUND: Persistent post-stroke headache is a clinical entity that has recently entered the International Classification of Headache Disorders, 3rd edition. In contrast to acute headache attributed to stroke, the epidemiology, clinical features, potential pathophysiology, and management of persistent post-stroke headache have not been reviewed. METHODS: We summarize the literature describing persistent headache attributed to stroke. RESULTS: Persistent headache after ischemic or hemorrhagic stroke affects up to 23% of patients. These persistent headaches tend to have tension-type features and are more frequent and severe than acute stroke-related headaches. Risk factors include younger age, female sex, pre-existing headache disorder, and comorbid post-stroke fatigue or depression. Other factors including obstructive sleep apnea or musculoskeletal imbalances may contribute to headache persistence. Although more evidence is needed, it may be reasonable to treat persistent post-stroke headache according to headache semiology. CONCLUSION: Recognition of persistent post-stroke headache as a separate clinical entity from acute stroke-attributed headache is the first step toward better defining its natural history and most effective treatment strategies.


Assuntos
Transtornos da Cefaleia/classificação , Transtornos da Cefaleia/etiologia , Cefaleia/classificação , Cefaleia/etiologia , Acidente Vascular Cerebral/complicações , Cefaleia/epidemiologia , Cefaleia/terapia , Transtornos da Cefaleia/epidemiologia , Transtornos da Cefaleia/terapia , Humanos , Acidente Vascular Cerebral/epidemiologia , Acidente Vascular Cerebral/fisiopatologia , Acidente Vascular Cerebral/terapia
12.
Cerebrovasc Dis ; 39(3-4): 190-201, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-25766121

RESUMO

BACKGROUND: Pain is a common complication after stroke and is associated with the presence of depression, cognitive dysfunction, and impaired quality of life. It remains underdiagnosed and undertreated, despite evidence that effective treatment of pain may improve function and quality of life. SUMMARY: We provide an overview of the means for clinical assessment and risk factors for the development of post-stroke pain, then review the newest available literature regarding the commonest post-stroke pain syndromes, including central post-stroke pain, complex regional pain syndrome, musculoskeletal pain including shoulder subluxation, spasticity-related pain, and post-stroke headache, as well as the available epidemiology and current treatment options. Key Messages: In the best interests of optimizing quality of life and function after stroke, clinicians should be aware of pain as a common complication after stroke, identify those patients at highest risk, directly inquire as to the presence and characteristics of pain, and should be aware of the options for treatment for the various pain syndromes.


Assuntos
Cefaleia/terapia , Dor/etiologia , Qualidade de Vida , Acidente Vascular Cerebral/complicações , Animais , Cefaleia/etiologia , Cefaleia/fisiopatologia , Humanos , Espasticidade Muscular/etiologia , Espasticidade Muscular/terapia , Fatores de Risco
13.
Front Neurol ; 15: 1345520, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38601343

RESUMO

Introduction: Like other forms of neuropathology, gliomas appear to spread along neural pathways. Accordingly, our group and others have previously shown that brain network connectivity is highly predictive of glioma survival. In this study, we aimed to examine the molecular mechanisms of this relationship via imaging transcriptomics. Methods: We retrospectively obtained presurgical, T1-weighted MRI datasets from 669 adult patients, newly diagnosed with diffuse glioma. We measured brain connectivity using gray matter networks and coregistered these data with a transcriptomic brain atlas to determine the spatial co-localization between brain connectivity and expression patterns for 14 proto-oncogenes and 3 neural network construction genes. Results: We found that all 17 genes were significantly co-localized with brain connectivity (p < 0.03, corrected). The strength of co-localization was highly predictive of overall survival in a cross-validated Cox Proportional Hazards model (mean area under the curve, AUC = 0.68 +/- 0.01) and significantly (p < 0.001) more so for a random forest survival model (mean AUC = 0.97 +/- 0.06). Bayesian network analysis demonstrated direct and indirect causal relationships among gene-brain co-localizations and survival. Gene ontology analysis showed that metabolic processes were overexpressed when spatial co-localization between brain connectivity and gene transcription was highest (p < 0.001). Drug-gene interaction analysis identified 84 potential candidate therapies based on our findings. Discussion: Our findings provide novel insights regarding how gene-brain connectivity interactions may affect glioma survival.

14.
J Clin Oncol ; 42(13): 1542-1552, 2024 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-38335473

RESUMO

PURPOSE: Histone 3 (H3) K27M-mutant diffuse midline glioma (DMG) has a dismal prognosis with no established effective therapy beyond radiation. This integrated analysis evaluated single-agent ONC201 (dordaviprone), a first-in-class imipridone, in recurrent H3 K27M-mutant DMG. METHODS: Fifty patients (pediatric, n = 4; adult, n = 46) with recurrent H3 K27M-mutant DMG who received oral ONC201 monotherapy in four clinical trials or one expanded access protocol were included. Eligible patients had measurable disease by Response Assessment in Neuro-Oncology (RANO) high-grade glioma (HGG) criteria and performance score (PS) ≥60 and were ≥90 days from radiation; pontine and spinal tumors were ineligible. The primary end point was overall response rate (ORR) by RANO-HGG criteria. Secondary end points included duration of response (DOR), time to response (TTR), corticosteroid response, PS response, and ORR by RANO low-grade glioma (LGG) criteria. Radiographic end points were assessed by dual-reader, blinded independent central review. RESULTS: The ORR (RANO-HGG) was 20.0% (95% CI, 10.0 to 33.7). The median TTR was 8.3 months (range, 1.9-15.9); the median DOR was 11.2 months (95% CI, 3.8 to not reached). The ORR by combined RANO-HGG/LGG criteria was 30.0% (95% CI, 17.9 to 44.6). A ≥50% corticosteroid dose reduction occurred in 7 of 15 evaluable patients (46.7% [95% CI, 21.3 to 73.4]); PS improvement occurred in 6 of 34 evaluable patients (20.6% [95% CI, 8.7 to 37.9]). Grade 3 treatment-related treatment-emergent adverse events (TR-TEAEs) occurred in 20.0% of patients; the most common was fatigue (n = 5; 10%); no grade 4 TR-TEAEs, deaths, or discontinuations occurred. CONCLUSION: ONC201 monotherapy was well tolerated and exhibited durable and clinically meaningful efficacy in recurrent H3 K27M-mutant DMG.


Assuntos
Neoplasias Encefálicas , Glioma , Histonas , Mutação , Humanos , Adulto , Feminino , Masculino , Adolescente , Pessoa de Meia-Idade , Adulto Jovem , Glioma/genética , Glioma/tratamento farmacológico , Glioma/patologia , Neoplasias Encefálicas/genética , Neoplasias Encefálicas/tratamento farmacológico , Neoplasias Encefálicas/patologia , Criança , Histonas/genética , Idoso , Recidiva Local de Neoplasia/genética , Recidiva Local de Neoplasia/tratamento farmacológico , Pré-Escolar , Pirimidinas/uso terapêutico , Pirimidinas/efeitos adversos , Piridonas/uso terapêutico
15.
Curr Oncol ; 30(6): 5876-5897, 2023 06 19.
Artigo em Inglês | MEDLINE | ID: mdl-37366923

RESUMO

Immunotherapy has revolutionized cancer treatment over the past decade. As it is increasingly introduced into routine clinical practice, immune-related complications have become more frequent. Accurate diagnosis and treatment are essential, with the goal of reduced patient morbidity. This review aims to discuss the various clinical manifestations, diagnosis, treatments, and prognosis of neurologic complications associated with the use of immune checkpoint inhibitors, adoptive T-cell therapies, and T-cell redirecting therapies. We also outline a suggested clinical approach related to the clinical use of these agents.


Assuntos
Neoplasias , Humanos , Neoplasias/tratamento farmacológico , Imunoterapia/efeitos adversos , Prognóstico
16.
medRxiv ; 2023 Nov 28.
Artigo em Inglês | MEDLINE | ID: mdl-38076940

RESUMO

Like other forms of neuropathology, gliomas appear to spread along neural pathways. Accordingly, our group and others have previously shown that brain network connectivity is highly predictive of glioma survival. In this study, we aimed to examine the molecular mechanisms of this relationship via imaging transcriptomics. We retrospectively obtained presurgical, T1-weighted MRI datasets from 669 adult patients, newly diagnosed with diffuse glioma. We measured brain connectivity using gray matter networks and coregistered these data with a transcriptomic brain atlas to determine the spatial co-localization between brain connectivity and expression patterns for 14 proto-oncogenes and 3 neural network construction genes. We found that all 17 genes were significantly co-localized with brain connectivity (p < 0.03, corrected). The strength of co-localization was highly predictive of overall survival in a cross-validated Cox Proportional Hazards model (mean area under the curve, AUC = 0.68 +/- 0.01) and significantly (p < 0.001) more so for a random forest survival model (mean AUC = 0.97 +/- 0.06). Bayesian network analysis demonstrated direct and indirect causal relationships among gene-brain co-localizations and survival. Gene ontology analysis showed that metabolic processes were overexpressed when spatial co-localization between brain connectivity and gene transcription was highest (p < 0.001). Drug-gene interaction analysis identified 84 potential candidate therapies based on our findings. Our findings provide novel insights regarding how gene-brain connectivity interactions may affect glioma survival.

17.
Neurooncol Adv ; 5(1): vdad032, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37114244

RESUMO

Background: Medulloblastoma in adults is rare and treatment decisions are largely driven from pediatric literature. We sought to characterize recurrent medulloblastoma in adults. Methods: From a single-institution dataset of 200 adult patients diagnosed with medulloblastoma during 1978-2017, those with recurrence were analyzed for clinical features, treatment, and outcome. Results: Of the 200 patients, 82 (41%) with median age of 29 years (18-59) had recurrence after a median follow-up time of 8.4 years (95% CI = 7.1, 10.3). Of these, 30 (37%) were standard-risk, 31 (38%) were high-risk, and 21 (26%) had unknown-risk diseases at the time of initial diagnosis. Forty-eight (58%) presented with recurrence outside the posterior fossa, of whom 35 (43%) had distant recurrence only. Median Progression-free survival (PFS) and OS from initial surgery were 33.5 and 62.4 months, respectively. Neither PFS nor OS from initial diagnosis differed between the standard-risk and high-risk groups in those who experience recurrence (P = .505 and .463, respectively). Median OS from first recurrence was 20.3 months, also with no difference between the standard-risk and high-risk groups (P = .518). Recurrences were treated with combinations of re-resection (20 patients; 25%), systemic chemotherapy (61 patients; 76%), radiation (29 patients; 36%), stem cell transplant (6 patients; 8%), and intrathecal chemotherapy (4 patients; 5%). Patients who received radiation at recurrence had better OS (32.9 months) than those who did not (19.2 months) (P = .034). Conclusions: Recurrent medulloblastoma in adults has a poor prognosis irrespective of initial risk stratification. Recurrence commonly arises outside the posterior fossa years after initial diagnosis.

18.
Cancer Discov ; 13(11): 2370-2393, 2023 11 01.
Artigo em Inglês | MEDLINE | ID: mdl-37584601

RESUMO

Patients with H3K27M-mutant diffuse midline glioma (DMG) have no proven effective therapies. ONC201 has recently demonstrated efficacy in these patients, but the mechanism behind this finding remains unknown. We assessed clinical outcomes, tumor sequencing, and tissue/cerebrospinal fluid (CSF) correlate samples from patients treated in two completed multisite clinical studies. Patients treated with ONC201 following initial radiation but prior to recurrence demonstrated a median overall survival of 21.7 months, whereas those treated after recurrence had a median overall survival of 9.3 months. Radiographic response was associated with increased expression of key tricarboxylic acid cycle-related genes in baseline tumor sequencing. ONC201 treatment increased 2-hydroxyglutarate levels in cultured H3K27M-DMG cells and patient CSF samples. This corresponded with increases in repressive H3K27me3 in vitro and in human tumors accompanied by epigenetic downregulation of cell cycle regulation and neuroglial differentiation genes. Overall, ONC201 demonstrates efficacy in H3K27M-DMG by disrupting integrated metabolic and epigenetic pathways and reversing pathognomonic H3K27me3 reduction. SIGNIFICANCE: The clinical, radiographic, and molecular analyses included in this study demonstrate the efficacy of ONC201 in H3K27M-mutant DMG and support ONC201 as the first monotherapy to improve outcomes in H3K27M-mutant DMG beyond radiation. Mechanistically, ONC201 disrupts integrated metabolic and epigenetic pathways and reverses pathognomonic H3K27me3 reduction. This article is featured in Selected Articles from This Issue, p. 2293.


Assuntos
Neoplasias Encefálicas , Glioma , Humanos , Glioma/genética , Glioma/patologia , Neoplasias Encefálicas/genética , Neoplasias Encefálicas/patologia , Histonas/genética , Resultado do Tratamento , Epigênese Genética , Mutação
19.
J Gen Intern Med ; 27(1): 23-7, 2012 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-21953327

RESUMO

BACKGROUND: United States academic hospitals have rapidly adopted the hospitalist model of care. Academic hospitalists have taken on much of the clinical and teaching responsibilities at many institutions, yet little is known about their academic productivity and promotion. OBJECTIVE: We sought to discover the attitudes and attributes of academic hospitalists regarding mentorship, productivity, and promotion. DESIGN: We performed a web-based email survey of academic hospitalists consisting of 61 questions. PARTICIPANTS: Four hundred and twenty academic hospitalists. MAIN MEASURES: Demographic details, scholarly production, presence of mentorship and attitudes towards mentor, academic rank KEY RESULTS: Two hundred and sixty-six (63%) of hospitalists responded. The majority were under 41 (80%) and had been working as hospitalists for <5 years (62%). Only 42% of academic hospitalists had a mentor. Forty-four percent of hospitalists had not presented a poster or abstract at national meeting; 51% had not been first author on a peer-reviewed publication. Factors positively associated with publication of a peer-reviewed first author paper included: 1) male gender, AOR = 2.38 (95% CI 1.30, 4.33), 2) >20% "protected" time, AOR = 1.92 (95% CI 1.00, 3.69), and 3) a better-than-average understanding of the criteria for promotion, AOR = 3.66 (95% CI 1.76, 7.62). A lack of mentorship was negatively associated with producing any peer-reviewed first author publications AOR = 0.43 (95% CI 0.23, 0.81); any non-peer reviewed publications AOR = 0.45 (95% CI 0.24, 0.83), and leading a teaching session at a national meeting AOR = 0.41 (95% CI 0.19, 0.88). Most hospitalists promoted to the level of associate professor had been first author on four to six peer-reviewed publications. CONCLUSIONS: Most academic hospitalists had not presented a poster at a national meeting, authored an academic publication, or presented grand rounds at their institution. Many academic hospitalists lacked mentorship and this was associated with a failure to produce scholarly activity. Mentorship may improve academic productivity among hospitalists.


Assuntos
Centros Médicos Acadêmicos/métodos , Mobilidade Ocupacional , Eficiência , Docentes de Medicina , Médicos Hospitalares/métodos , Mentores , Centros Médicos Acadêmicos/normas , Adulto , Coleta de Dados/métodos , Docentes de Medicina/normas , Feminino , Médicos Hospitalares/normas , Humanos , Masculino
20.
J Gen Intern Med ; 27(5): 603-7, 2012 May.
Artigo em Inglês | MEDLINE | ID: mdl-22234445

RESUMO

Thoracic endometriosis syndrome is a well-described, rare manifestation of endometriosis. We present a case of a 35-year old woman undergoing controlled ovarian stimulation prior to in vitro fertilization (IVF) who developed bilateral hemorrhagic pleural effusions. She was initially diagnosed with ovarian hyperstimulation syndrome, a complication of infertility therapy; however, she was later found to have occult thoracic endometriosis. We describe ovarian hyperstimulation syndrome and review the manifestations of thoracic endometriosis syndrome. Although endometriosis is a hormone-dependent disease, the rate of IVF complications related to endometriosis is low.


Assuntos
Endometriose/diagnóstico , Pulmão/patologia , Síndrome de Hiperestimulação Ovariana/diagnóstico , Indução da Ovulação/efeitos adversos , Doenças Torácicas/diagnóstico , Adulto , Erros de Diagnóstico , Endometriose/complicações , Feminino , Fertilização in vitro , Humanos , Hidropneumotórax/diagnóstico por imagem , Hidropneumotórax/etiologia , Derrame Pleural/diagnóstico por imagem , Radiografia , Doenças Torácicas/complicações
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