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1.
Public Health Rep ; : 333549241230921, 2024 Mar 17.
Artigo em Inglês | MEDLINE | ID: mdl-38494737

RESUMO

OBJECTIVE: While the number of overdoses in the United States continues to increase, lags in data availability have undermined efforts to monitor, respond to, and prevent drug overdose deaths. We examined the performance of a single-item mandatory radio button implemented into a statewide medical examiner database to identify suspected drug overdose deaths in near-real time. MATERIALS AND METHODS: The New Jersey Office of the Chief State Medical Examiner operates a statewide mandated case management data system to document deaths that fall under the jurisdiction of a medical examiner office. In 2018, the New Jersey Office of the Chief State Medical Examiner implemented a radio button into the case management data system that requires investigators to report whether a death is a suspected drug overdose death. We examined the performance of this tool by comparing confirmed drug overdose deaths in New Jersey during 2020 with suspected drug overdose deaths identified by investigators using the radio button. To measure performance, we calculated sensitivity, specificity, positive predictive value, negative predictive value, and false-positive and false-negative error rates. RESULTS: During 2020, New Jersey medical examiners investigated 26 527 deaths: 2952 were confirmed by the state medical examiner as a drug overdose death and 3050 were identified by investigators using the radio button as a suspected drug overdose death. Sensitivity was calculated as 96.1% (2837/2952), specificity as 99.1% (23 362/23 575), positive predictive value as 93.0% (2837/3050), negative predictive value as 99.5% (23 362/23 477), false-positive error rate as 7.0% (213/3050), and false-negative error rate as 3.9% (115/2952). PRACTICE IMPLICATIONS: Implementation of a radio button into death investigation databases provides a simple and accurate method for identifying and tracking drug overdose deaths in near-real time.

2.
Artigo em Inglês | MEDLINE | ID: mdl-38431902

RESUMO

OBJECTIVE: Social media may inform health care decisions among younger patient populations. TikTok is a social media platform that allows users to post short-form videos. This study aimed to assess the quality of sinusitis-related videos on TikTok. STUDY DESIGN: We searched TikTok on January 29, 2023, for sinusitis-related hashtags: #sinusitis, #sinus, #sinusinfection. SETTING: Internet. METHODS: The number of views/shares per day, uploader type (nonmedical influencer, lay individual, and medical professional) content categories (medical advice, marketing, comedy, and lifestyle/acceptability), and content type (educational vs factual) were collected. The Patient Education Materials Assessment Tool for Audiovisual Material and Journal of the American Medical Association criteria score was used to measure understandability, actionability, and reliability. The Global Quality Scale (GQS) was used to evaluate the quality of videos; the harm/benefit score was used to evaluate causative effects. Analyses were performed using analysis of variance (α = .05). RESULTS: There were 221 videos identified, which garnered over 300 million views and 1 million shares. Almost half of the videos were published by nonmedical influencers. When controlling for covariates, nonmedical influencers and lay uploaders were more likely to have harmful harm/benefit scores, less understandable videos, and lower GQS scores compared to medical professionals. Less than half of videos posted by nonmedical influencers categorized as educational were factual (46.7%); lay individuals and medical professionals had higher rates of factual educational content (79.9% and 83.7%, respectively). CONCLUSION: Most nonmedical influencer-posted TikTok videos about sinusitis are inaccurate, despite being portrayed as medical advice/educational. Rhinologists must find modern ways to disseminate true disease-related content via social media to combat medical misinformation.

3.
Int J Pediatr Otorhinolaryngol ; 177: 111844, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38185004

RESUMO

OBJECTIVE: Our institution serves a diverse patient population across a large metropolitan city. Literature has shown pediatric otolaryngology patients with lower socioeconomic status (SES) have higher rates of sleep-disordered breathing, delays in treatment time, and greater risks of complications post-tonsillectomy. This study aims to examine the effects of SES on adenotonsillectomy outcomes performed at our institution. STUDY DESIGN: A retrospective chart review including 1560 pediatric patients (ages 0-18) who underwent adenotonsillectomy between January 2015 and December 2020. SETTING: Large metropolitan hospital, level 1 trauma center. METHODS: Outcome variables included postoperative hospital admission, phone calls, 30-day follow-up, and persistent obstructive sleep apnea (OSA). Descriptive statistics using Wilcoxon Signed Rank Tests and univariate and multivariate logistic regression modeling were used to determine statistically significant covariates at α = 0.05. RESULTS: The cohort included Non-Hispanic White (n = 488, 31 %), Non-Hispanic Black (n = 801, 51 %), Hispanic (n = 210, 13 %), and other (n = 61, 4 %) groups. Using multivariate regression, privately insured patients were less likely to have moderate-to-severe OSA before surgery (0.65 95 % CI 0.45, 0.93 p = 0.017) and be admitted postoperatively (0.73, 0.55-0.96, p < 0.01), while more likely to have postoperative follow-up phone calls (1.57, 1.19-2.09, p < 0.01) and visits (1.53, 1.22-1.92, p < 0.01). Increased income was associated with decreased rehospitalizations within three months of surgery (0.98, 0.97-1.00, p < 0.01). CONCLUSION: This study suggests SES significantly affects adenotonsillectomy outcomes. Further studies are warranted to provide better care for all pediatric patients.


Assuntos
Apneia Obstrutiva do Sono , Tonsilectomia , Criança , Humanos , Tonsilectomia/efeitos adversos , Estudos Retrospectivos , Polissonografia , Adenoidectomia/efeitos adversos , Apneia Obstrutiva do Sono/cirurgia , Classe Social
4.
NPJ Breast Cancer ; 10(1): 3, 2024 Jan 05.
Artigo em Inglês | MEDLINE | ID: mdl-38182588

RESUMO

Circulating tumour DNA (ctDNA) detection via liquid biopsy is an emerging alternative to tissue biopsy, but its potential in treatment response monitoring and prognosis in triple negative breast cancer (TNBC) is not yet well understood. Here we determined the prevalence of actionable mutations detectable in ctDNA using a clinically validated cancer gene panel assay in patients with TNBC, without recurrence at the time of study entry. Sequencing of plasma DNA and validation of variants from 130 TNBC patients collected within 7 months of primary treatment completion revealed that 7.7% had detectable residual disease with a hotspot panel. Among neoadjuvant treated patients, we observed a trend where patients with incomplete pathologic response and positive ctDNA within 7 months of treatment completion were at much higher risk of reduced progression free survival. We propose that a high risk subset of early TNBC patients treated in neoadjuvant therapy protocols may be identifiable by combining tissue response and sensitive ctDNA detection.

5.
J Thorac Cardiovasc Surg ; 167(2): 765-774, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-37330207

RESUMO

INTRODUCTION: The purpose of our study was to examine changes in the demographic makeup of resident physicians in integrated 6-year cardiothoracic surgery and traditional thoracic surgery residency programs from 2013 to 2022 compared with other surgical subspecialties and determine potential leaks in the training pathway. METHODS: Data from US Graduate Medical Education reports from 2013 to 2022 and medical student enrollment data from the Association of American Medical Colleges were obtained. Average percentages of women and underrepresented minorities were calculated in 2 5-year intervals: 2013 to 2017 and 2018 to 2022. Average percentages of women, Black, and Hispanic medical students and residents were calculated for the 2019 to 2022 period. Pearson χ2 tests were conducted to determine significant differences in proportions of women, Black/African American, and Hispanic trainees across time (α = 0.05). RESULTS: Thoracic surgery and I6 residents saw a significant increase in the proportion of women trainees across the 2 time periods (19.9% (210 out of 1055) to 24.6% (287 out of 1169) (P < .01) and 24.1% (143 out of 592) to 28.9% (330 out of 1142) (P < .05)), respectively. There was no significant change in the proportion of Black and Hispanic trainees in thoracic surgery fellowship or integrated 6-year cardiothoracic residency programs. Hispanic trainees were the only group whose proportion of cardiothoracic surgery trainees was not significantly lower than their medical school proportion. Women and Black trainees had significantly lower proportions of thoracic surgery residents and integrated 6-year cardiothoracic residency program residents than their proportions in medical school (P < .01). CONCLUSIONS: Cardiothoracic surgery has not significantly increased the number of Black and Hispanic trainees during the past decade. The lower proportion of Blacks and women in thoracic surgery residency and fellowship programs compared with their proportion in medical schools is concerning and is an opportunity for intervention.


Assuntos
Internato e Residência , Feminino , Humanos , Demografia , Educação de Pós-Graduação em Medicina , Hispânico ou Latino , Estados Unidos , Negro ou Afro-Americano
6.
Exp Clin Transplant ; 21(7): 592-598, 2023 07.
Artigo em Inglês | MEDLINE | ID: mdl-37584540

RESUMO

OBJECTIVES: Health-related quality of life has been well studied across transplantation fields, but factors associated with lung transplant preoperative and postoperative quality of life remain unknown. Here, we determine factors associated with health-related quality of life in lung transplant candidates and recipients to identify patients at risk of lower health-related quality of life. MATERIALS AND METHODS: From January 2021 to May 2022, health-related quality of life was measured in candidates and recipients using the RAND 36-Item Short Form Health Survey questionnaire. We reviewed demographic parameters and clinical information and scored frailty according to the modified 5-item frailty index. We performed Fisher exact test and the Pearson chi-square test and used linear regression models to determine covariate associations on physical component summary, mental component summary, and self-reported health scores (α = 0.05). RESULTS: Eleven candidates and 17 recipients comp-leted the survey. Compared with candidates, transplant recipients reported significantly higher scores in 4 of the 8 health domains and in the physical component summary (P < .01), mental component summary (P = .05), and self-reported health score (P < .01). In candidates, higher body mass index and higher modified 5-item frailty index scores were negatively associated with the physical component summary and mental component summary, respec-tively (P < .05). In recipients, higher body mass index and higher lung allocation scores were associated with lower values for the physical component summary (-2.29; P < .05) and self-reported health score (-0.33; P < .05), respectively. CONCLUSIONS: Body mass index, the modified 5-item frailty index, and the lung allocation score were significantly associated with health-related quality of life in lung transplant recipients. Future interventions should target these modifiable associations to maximize candidate and recipient health-related quality of life.


Assuntos
Fragilidade , Transplante de Pulmão , Humanos , Qualidade de Vida , Fragilidade/diagnóstico , Transplante de Pulmão/efeitos adversos , Inquéritos e Questionários , Transplantados
7.
JAMA Otolaryngol Head Neck Surg ; 149(7): 628-635, 2023 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-37261840

RESUMO

Importance: Given the growth of minoritized groups in the US and the widening racial and ethnic health disparities, improving diversity remains a proposed solution in the field of otolaryngology. Evaluating current trends in workforce diversity may highlight potential areas for improvement. Objective: To understand the changes in gender, racial, and ethnic diversity in the otolaryngology workforce in comparison with changes in the general surgery and neurosurgery workforces from 2013 to 2022. Design, Setting, and Participants: This cross-sectional study used publicly available data from the Accreditation Council for Graduate Medical Education and the Association of American Medical Colleges for 2013 to 2022, and included medical students and trainees in all US medical residency programs and allopathic medical schools. Main Outcomes and Measures: Average percentages of women, Black, and Latino trainees during 2 intervals of 5 years (2013-2017 and 2018-2022). Pearson χ2 tests compared demographic information. Normalized ratios were calculated for each demographic group in medical school and residency. Piecewise linear regression assessed linear fit for representation across time periods and compared rates of change. Results: The study population comprised 59 865 medical residents (43 931 [73.4%] women; 6203 [10.4%] Black and 9731 [16.2%] Latino individuals; age was not reported). The comparison between the 2 study intervals showed that the proportions of women, Black, and Latino trainees increased in otolaryngology (2.9%, 0.7%, and 1.6%, respectively), and decreased for Black trainees in both general surgery and neurosurgery (-0.4% and -1.0%, respectively). In comparison with their proportions in medical school, Latino trainees were well represented in general surgery, neurosurgery, and otolaryngology (normalized ratios [NRs]: 1.25, 1.06, and 0.96, respectively); however, women and Black trainees remained underrepresented in general surgery, neurosurgery, and otolaryngology (women NRs, 0.76, 0.33, and 0.68; Black NRs, 0.63, 0.61, and 0.29, respectively). The percentage of women, Black, and Latino trainees in otolaryngology all increased from 2020 to 2022 (2.5%, 1.1%, and 1.1%, respectively). Piecewise regression showed positive trends across all 3 specialties. Conclusions and Relevance: The findings of this cross-sectional study indicate a positive direction but only a modest increase of diversity in otolaryngology, particularly in the context of national demographic data. Novel strategies should be pursued to supplement existing efforts to increase diversity in otolaryngology.


Assuntos
Negro ou Afro-Americano , Hispânico ou Latino , Otolaringologia , Mulheres , Recursos Humanos , Feminino , Humanos , Masculino , Estudos Transversais , Demografia , Hispânico ou Latino/estatística & dados numéricos , Internato e Residência/estatística & dados numéricos , Otolaringologia/educação , Otolaringologia/estatística & dados numéricos , Estados Unidos/epidemiologia , Recursos Humanos/estatística & dados numéricos , Diversidade Cultural , Faculdades de Medicina/estatística & dados numéricos , Negro ou Afro-Americano/estatística & dados numéricos , Cirurgia Geral/educação , Cirurgia Geral/estatística & dados numéricos , Neurocirurgia/educação , Neurocirurgia/estatística & dados numéricos
8.
Laryngoscope Investig Otolaryngol ; 8(3): 693-698, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-37342108

RESUMO

Introduction: There is a lack of qualitative analysis of the personal experiences within Couples Matching. In this qualitative study, we aim to record personal attitudes, reflections, and advice on experiences with the Couples Match process. Methods: Our survey, consisting of two open-ended questions regarding the experience of Couples Matching, was distributed from January 2022 to March 2022 via email to 106 otolaryngology program directors across the nation. Survey responses were analyzed iteratively using the constructivist grounded theory to construct themes related to pre-match priorities, match-related stressors, and post-match satisfaction. Themes were developed inductively and refined iteratively as the dataset evolved. Results: 18 Couples Match residents responded. In response to the first question: "What was the most difficult part of the process for you and/or your partner?", we identified the following themes: cost and financial burden, increased stress on the relationship, sacrificing top choices, and finalizing the match list. In response to the second question: "Using your experience as a previous applicant, what advice would you give to another couple planning on couples matching?", we identified four common themes: compromise, advocacy, dynamic conversations, and applying broadly. Conclusion: We sought to understand the Couples Match process through the perspective of previous applicants. Analyzing the views and attitudes of Couples Match applicants, our study captures the most challenging aspects of the experience and highlights possible areas to improve advising for couples, including important factors to consider when applying, ranking, and interviewing.

9.
Int Forum Allergy Rhinol ; 13(11): 2082-2085, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-37132277

RESUMO

KEY POINTS: We use machine learning to examine health insurance and mortality in olfactory neuroblastoma. Private insurance significantly improved survival even after adjusting for confounders. The regression model also found no statistical difference between Medicare and no insurance.

13.
JTCVS Open ; 16: 1049-1062, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-38204700

RESUMO

Objectives: The American Association for Thoracic Surgery recommends using frailty assessments to identify patients at higher risk of perioperative morbidity and mortality. We evaluated what patient factors are associated with frailty in a thoracic surgery patient population. Methods: New patients aged more than 50 years who were evaluated in a thoracic surgery clinic underwent routine frailty screening with a modified Fried's Frailty Phenotype. Differences in demographics and comorbid conditions among frailty status groups were assessed with chi-square and Student t tests. Logistic regressions performed with binomial distribution assessed the association of demographic and clinical characteristics with nonfrail, frail, prefrail, and any frailty (prefrail/frail) status. Results: The study population included 317 patients screened over 19 months. Of patients screened, 198 (62.5%) were frail or prefrail. Frail patients undergoing thoracic surgery were older, were more likely single or never married, had lower median income, and had lower percent predicted diffusion capacity of the lungs for carbon monoxide and forced expiratory volume during 1 second (all P < .05). More non-Hispanic Black patients were frail and prefrail compared with non-Hispanic White patients (P = .003) and were more likely to score at least 1 point on Fried's Frailty Phenotype (adjusted odds ratio, 3.77; P = .02) when controlling for age, sex, number of comorbidities, median income, diffusion capacity of the lungs for carbon monoxide, and forced expiratory volume during 1 second. Non-Hispanic Black patients were more likely than non-Hispanic White patients to score points for slow gait and low activity (both P < .05). Conclusions: Non-Hispanic Black patients undergoing thoracic surgery are more likely to score as frail or prefrail than non-Hispanic White patients. This disparity stems from differences in activity and gait speed. Frailty tools should be examined for factors contributing to this disparity, including bias.

14.
Am J Otolaryngol ; 43(6): 103609, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36029619

RESUMO

INTRODUCTION: Actinomycosis is a granulomatous infection that rarely involves the larynx or pharynx. Three cases of actinomycosis of the larynx or pharynx from our institution were reviewed and a systematic literature review was performed to better define surgical management, antibiotic therapy, risk factors, and incidence of recurrence or complications. MATERIALS AND METHODS: PubMed/Medline, Cochrane, Embase, and Google Scholar were searched on November 30, 2021 using the terms "laryngeal actinomycosis", "pharyngeal actinomycosis", "actinomycosis AND larynx", and "actinomycosis AND pharynx." Articles which did not describe appropriate sites or were non-English were excluded. Results were collected for demographic information, site(s) of infection, comorbidities, lesion characteristics and treatments. RESULTS: Along with three cases reported from our institution, 40 unique cases were reviewed from 37 studies for a total of 43 patients (Table 1). 34 (81.0 %) of the patients were male with the highest incidence of infection in the seventh decade (54.8 %). The most common site for the infection was the larynx (69.0 %) followed by the pharynx (16.7 %). Risk factors included a history of radiation therapy, immunosuppression, inhalational irritant, and diabetes (Table 3). The duration of antibiotic therapy varied greatly, from one month to one year and total follow up ranged from 1 month to 2.5 years (Table 1). CONCLUSIONS: A comprehensive review of the literature on pharyngolaryngeal actinomycosis shows that this infection has increased prevalence within the head and neck cancer patient population. Similar to cervicofacial actinomycosis, these atypical sites have shown favorable responses to extended antibiotic therapy and generally do not require aggressive surgical management.


Assuntos
Actinomicose , Laringe , Humanos , Masculino , Feminino , Faringe/patologia , Irritantes , Actinomicose/terapia , Actinomicose/tratamento farmacológico , Laringe/patologia , Antibacterianos/uso terapêutico
15.
Artigo em Inglês | MEDLINE | ID: mdl-35409799

RESUMO

Protection of the population and of workers from exposure to radon is a unique challenge in radiation protection. Many coordinated actions and a variety of expertise are needed. Initially, a National Radon Action Plan (NRAP) has been developed and implemented by some countries, while it is currently recommended by international organizations (e.g., World Health Organization) and required by international regulations, such as the European Council Directive 2013/59/Euratom and the International Basic Safety Standards on Radiation Protection and Safety of Radiation Sources, cosponsored by eight international organizations. Within this framework, the Heads of the European Radiological Protection Competent Authorities (HERCA) have organized activities aimed at sharing experiences to contribute toward the development and implementation of effective NRAPs. Two workshops were held in 2014 and 2015, the latter on radon in workplaces. As a follow-up to these, an online event took place in March 2021, and a second specific workshop on NRAP is planned for June 2022. These workshops were attended by experts from the competent authorities of European countries, relevant national and international organizations. The experience of several countries and the outcomes from these workshops have highlighted the need for adequate indicators of the effectiveness and progress of the actions of NRAPs, which could also be useful to implement the principle of optimization and the graded approach in NRAPs. In this paper, the activities of HERCA to support the development and implementation of effective NRAPs are described and some examples of effectiveness indicators are reported, including those already included in the NRAP of some European countries.


Assuntos
Monitoramento de Radiação , Proteção Radiológica , Radônio , Exposição Ambiental/análise , Europa (Continente) , Humanos , Radônio/análise
16.
Crohns Colitis 360 ; 4(4): otac042, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-36778515

RESUMO

Background: Fecal calprotectin (Fcal) is a noninvasive, inexpensive biomarker of disease activity. However, patient compliance with this test is variable and incompletely described. We assessed compliance rates with Fcal tests and identified factors associated with noncompliance. Methods: A retrospective chart review of patients with inflammatory bowel disease (IBD) who had a Fcal test ordered through our center between August 2021 and December 2021 was conducted. Demographic, clinical, disease, and test-related information were recorded. Patients with incomplete Fcal orders were sent a survey to better understand their reasons for noncompliance. Simple statistical analysis and and multivariable logistic regression modeling were performed. Results: Of 303 patients, 165 (54.4%) had an order for Fcal. Of the Fcal tests ordered, 55 (33.3%) were not completed. Remission of IBD, no prior Fcal completion, and tests ordered at a distant site were all associated with test noncompletion. A multivariable logistic regression revealed that history of a prior completed Fcal test is associated with subsequent test completion (odds ratio = 2.1, 95% confidence interval 1.9-35.5, P = .004). Patients who did not complete the test described the pandemic and third-party testing center issues as the most common reasons for noncompliance. Conclusions: In this single center experience with Fcal testing in patients with IBD, we identified that a history of incomplete Fcal testing and distant location of lab testing were significantly associated with noncompletion of the test. We provide practical guidance for future utilization and compliance, including the impact of home-based testing.

17.
Clin Breast Cancer ; 22(1): e74-e79, 2022 01.
Artigo em Inglês | MEDLINE | ID: mdl-34690081

RESUMO

PURPOSE: The use of the 21-gene Recurrence Score (RS) assay is emerging in node-positive estrogen receptor (ER)+ HER2-negative breast cancer (BC), particularly as initial data from the RxPONDER trial are now available. We investigated the impact of the RS result on adjuvant treatment decisions in such patients. PATIENTS AND METHODS: This prospective, multi-center study enrolled patients with ER+, HER2-negative BC and 1 to 3 positive nodes (microscopic [N1mi] or macroscopic [N1]). Treating oncologists documented treatment recommendations/plan before and after knowing the RS result. Sample size was determined assuming an overall treatment change rate (from chemohormonal therapy [CHT] to hormone therapy [HT] and vice-versa) of ≥30%. RESULTS: The study included 84 patients across 5 regional cancer centers, of whom 82 underwent 21-gene testing (77%, N1 disease; 63% grade 2 tumors). Of the RS-tested patients, 60%, 33%, and 7% had RS 0 to 17, 18 to 30, and 31 to 100, respectively. In 43 patients (52%), treatment changed post-RS: 40 patients (49%) from CHT to HT and 3 patients (4%) from HT to CHT. The net change was a 45% reduction in chemotherapy use. Treatment recommendation changes were consistent with the RS result. In RS 0 to 17 patients, the only documented change was from CHT to HT (27 patients). In RS 18-30 patients, change was noted in both directions (CHT-to-HT, 13 patients; HT-to-CHT, 3 patients). No treatment change was reported for the RS 31 to 100 patients, all of whom were recommended CHT pre-testing. CONCLUSION: Our results support the clinical utility of the RS assay in ER+ HER2-negative BC with 1 to 3 positive nodes.


Assuntos
Neoplasias da Mama/tratamento farmacológico , Neoplasias da Mama/metabolismo , Recidiva Local de Neoplasia/prevenção & controle , Receptor ErbB-2/metabolismo , Receptores de Estrogênio/metabolismo , Adulto , Antineoplásicos/uso terapêutico , Feminino , Humanos , Pessoa de Meia-Idade , Planejamento de Assistência ao Paciente , Estudos Prospectivos
18.
Transl Lung Cancer Res ; 10(1): 355-367, 2021 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-33569318

RESUMO

BACKGROUND: We investigated the association of peripheral blood inflammatory markers with overall survival (OS) in pembrolizumab treated advanced non-small cell lung cancer (aNSCLC) patients with programmed death ligand 1 (PD-L1) expression ≥50%. Clinical risk factors for development of immune-related adverse events (irAE) were also explored. METHODS: aNSCLC patients with high PD-L1 expression receiving pembrolizumab monotherapy outside of clinical trials were identified retrospectively. All patients were treated at one of six British Columbia Cancer clinics between August 2017 and June 2019. Patients were dichotomized using baseline neutrophil-to-lymphocyte ratio (NLR,

19.
Appl Radiat Isot ; 163: 109210, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-32561049

RESUMO

Radon is a radioactive gas originating from uranium, present in all rocks and soils in the Earth's Crust; emanating from the ground, radon can be released into the atmosphere. It is the greatest source of natural radioactivity exposure for the population and, as declared by the World Health Organization (WHO), the leading cause of lung cancer only after smoking. Although radon is a natural gas, its accumulation provoking elevated indoor radon levels is a result from building practices and thus, not natural. In Ireland, exposure to radon is estimated to be responsible for approximately 14% of all lung cancers, which is equivalent to around 300 lung cancers annually. In 2011, an interagency group was established in Ireland to develop a strategy to address indoor radon exposure, considered a significant public health concern. In 2014 a National Radon Control Strategy (NRCS) for Ireland was first published, giving a list of recommendations to be accomplished in a 4-year period Phase 1. A series of research actions to achieve the effective implementation of the strategy were conducted, including the development of a research project (OPTI-SDS) on the optimum specifications for radon mitigation by soil depressurisation systems. An overview of Phase 1 of the NRCS is presented, including outcomes from the research work carried out.

20.
J Nat Prod ; 83(4): 1249-1257, 2020 04 24.
Artigo em Inglês | MEDLINE | ID: mdl-32186874

RESUMO

Calcium homeostasis is implicated in some cancers, leading to the possibility that selective control of calcium might lead to new cancer drugs. On the basis of this idea, we designed an assay using a glioblastoma cell line and screened a collection of 1000 unique bacterial extracts. Isolation of the active compound from a hit extract led to the identification of boholamide A (1), a 4-amido-2,4-pentadieneoate (APD)-class peptide. Boholamide A (1) applied in the nanomolar range induces an immediate influx of Ca2+ in glioblastoma and neuronal cells. APD-class natural products are hypoxia-selective cytotoxins that primarily target mitochondria. Like other APD-containing compounds, 1 is hypoxia selective. Since APD natural products have received significant interest as potential chemotherapeutic agents, 1 provides a novel APD scaffold for the development of new anticancer compounds.


Assuntos
Antineoplásicos/farmacologia , Produtos Biológicos/farmacologia , Cálcio/metabolismo , Citotoxinas/farmacologia , Depsipeptídeos/farmacologia , Antineoplásicos/química , Antineoplásicos/isolamento & purificação , Produtos Biológicos/química , Produtos Biológicos/isolamento & purificação , Cálcio/química , Citotoxinas/química , Depsipeptídeos/química , Depsipeptídeos/isolamento & purificação , Hipóxia/fisiopatologia , Estrutura Molecular , Neoplasias
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