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A subset of individuals exposed to Mycobacterium tuberculosis (Mtb) that we refer to as 'resisters' (RSTR) show evidence of IFN-γ- T cell responses to Mtb-specific antigens despite serially negative results on clinical testing. Here we found that Mtb-specific T cells in RSTR were clonally expanded, confirming the priming of adaptive immune responses following Mtb exposure. RSTR CD4+ T cells showed enrichment of TH17 and regulatory T cell-like functional programs compared to Mtb-specific T cells from individuals with latent Mtb infection. Using public datasets, we showed that these TH17 cell-like functional programs were associated with lack of progression to active tuberculosis among South African adolescents with latent Mtb infection and with bacterial control in nonhuman primates. Our findings suggested that RSTR may successfully control Mtb following exposure and immune priming and established a set of T cell biomarkers to facilitate further study of this clinical phenotype.
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Linfócitos T CD4-Positivos , Mycobacterium tuberculosis , Tuberculose , Mycobacterium tuberculosis/imunologia , Humanos , Animais , Adolescente , Tuberculose/imunologia , Tuberculose/microbiologia , Linfócitos T CD4-Positivos/imunologia , Células Th17/imunologia , Feminino , Macaca mulatta , Masculino , Fenótipo , Interferon gama/metabolismo , Interferon gama/imunologia , Antígenos de Bactérias/imunologia , Tuberculose Latente/imunologia , Tuberculose Latente/microbiologia , África do Sul , Adulto Jovem , Linfócitos T Reguladores/imunologia , AdultoRESUMO
Genomic studies have identified hundreds of candidate genes near loci associated with risk for schizophrenia. To define candidates and their functions, we mutated zebrafish orthologs of 132 human schizophrenia-associated genes. We created a phenotype atlas consisting of whole-brain activity maps, brain structural differences, and profiles of behavioral abnormalities. Phenotypes were diverse but specific, including altered forebrain development and decreased prepulse inhibition. Exploration of these datasets identified promising candidates in more than 10 gene-rich regions, including the magnesium transporter cnnm2 and the translational repressor gigyf2, and revealed shared anatomical sites of activity differences, including the pallium, hypothalamus, and tectum. Single-cell RNA sequencing uncovered an essential role for the understudied transcription factor znf536 in the development of forebrain neurons implicated in social behavior and stress. This phenotypic landscape of schizophrenia-associated genes prioritizes more than 30 candidates for further study and provides hypotheses to bridge the divide between genetic association and biological mechanism.
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Esquizofrenia/genética , Esquizofrenia/fisiopatologia , Animais , Encéfalo , Córtex Cerebral , Modelos Animais de Doenças , Regulação da Expressão Gênica/genética , Predisposição Genética para Doença , Estudo de Associação Genômica Ampla , Fenótipo , Polimorfismo de Nucleotídeo Único/genética , Peixe-Zebra/genéticaRESUMO
Tetrapods (amphibians, reptiles, birds, and mammals) are model systems for global biodiversity science, but continuing data gaps, limited data standardisation, and ongoing flux in taxonomic nomenclature constrain integrative research on this group and potentially cause biased inference. We combined and harmonised taxonomic, spatial, phylogenetic, and attribute data with phylogeny-based multiple imputation to provide a comprehensive data resource (TetrapodTraits 1.0.0) that includes values, predictions, and sources for body size, activity time, micro- and macrohabitat, ecosystem, threat status, biogeography, insularity, environmental preferences, and human influence, for all 33,281 tetrapod species covered in recent fully sampled phylogenies. We assess gaps and biases across taxa and space, finding that shared data missing in attribute values increased with taxon-level completeness and richness across clades. Prediction of missing attribute values using multiple imputation revealed substantial changes in estimated macroecological patterns. These results highlight biases incurred by nonrandom missingness and strategies to best address them. While there is an obvious need for further data collection and updates, our phylogeny-informed database of tetrapod traits can support a more comprehensive representation of tetrapod species and their attributes in ecology, evolution, and conservation research.
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Biodiversidade , Aves , Mamíferos , Filogenia , Répteis , Animais , Répteis/classificação , Anfíbios , Ecossistema , Viés , Humanos , Tamanho CorporalRESUMO
5'-end modifications play key roles in determining RNA fates. Phospho-methylation is a noncanonical cap occurring on either 5'-PPP or 5'-P ends. We used ChemRAP, in which affinity purification of cellular proteins with chemically synthesized modified RNAs is coupled to quantitative proteomics, to identify 5'-Pme "readers". We show that 5'-Pme is directly recognized by EPRS, the central subunit of the multisynthetase complex (MSC), through its linker domain, which has previously been involved in key noncanonical EPRS and MSC functions. We further determine that the 5'-Pme writer BCDIN3D regulates the binding of EPRS to specific mRNAs, either at coding regions rich in MSC codons, or around start codons. In the case of LRPPRC (leucine-rich pentatricopeptide repeat containing), a nuclear-encoded mitochondrial protein associated with the French Canadian Leigh syndrome, BCDIN3D deficiency abolishes binding of EPRS around its mRNA start codon, increases its translation but ultimately results in LRPPRC mislocalization. Overall, our results suggest that BCDIN3D may regulate the translation of specific mRNA via RNA-5'-Pme.
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Proteínas de Neoplasias , Biossíntese de Proteínas , Proteínas de Neoplasias/genética , Canadá , Metilação , RNA Mensageiro/genética , RNA/metabolismoRESUMO
Increasing fire severity and warmer, drier postfire conditions are making forests in the western United States (West) vulnerable to ecological transformation. Yet, the relative importance of and interactions between these drivers of forest change remain unresolved, particularly over upcoming decades. Here, we assess how the interactive impacts of changing climate and wildfire activity influenced conifer regeneration after 334 wildfires, using a dataset of postfire conifer regeneration from 10,230 field plots. Our findings highlight declining regeneration capacity across the West over the past four decades for the eight dominant conifer species studied. Postfire regeneration is sensitive to high-severity fire, which limits seed availability, and postfire climate, which influences seedling establishment. In the near-term, projected differences in recruitment probability between low- and high-severity fire scenarios were larger than projected climate change impacts for most species, suggesting that reductions in fire severity, and resultant impacts on seed availability, could partially offset expected climate-driven declines in postfire regeneration. Across 40 to 42% of the study area, we project postfire conifer regeneration to be likely following low-severity but not high-severity fire under future climate scenarios (2031 to 2050). However, increasingly warm, dry climate conditions are projected to eventually outweigh the influence of fire severity and seed availability. The percent of the study area considered unlikely to experience conifer regeneration, regardless of fire severity, increased from 5% in 1981 to 2000 to 26 to 31% by mid-century, highlighting a limited time window over which management actions that reduce fire severity may effectively support postfire conifer regeneration.
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Incêndios , Traqueófitas , Incêndios Florestais , Clima , Mudança ClimáticaRESUMO
Chloroplasts are photosynthetic organelles in algal and plant cells that contain their own genome. Chloroplast genomes are commonly used in evolutionary studies and taxonomic identification and are increasingly becoming a target for crop improvement studies. As DNA sequencing becomes more affordable, researchers are collecting vast swathes of high-quality whole-genome sequence data from laboratory and field settings alike. Whole tissue read libraries sequenced with the primary goal of understanding the nuclear genome will inadvertently contain many reads derived from the chloroplast genome. These whole-genome, whole-tissue read libraries can additionally be used to assemble chloroplast genomes with little to no extra cost. While several tools exist that make use of short-read second generation and third-generation long-read sequencing data for chloroplast genome assembly, these tools may have complex installation steps, inadequate error reporting, poor expandability, and/or lack scalability. Here, we present CLAW (Chloroplast Long-read Assembly Workflow), an easy to install, customise, and use Snakemake tool to assemble chloroplast genomes from chloroplast long-reads found in whole-genome read libraries (https://github.com/aaronphillips7493/CLAW). Using 19 publicly available reference chloroplast genome assemblies and long-read libraries from algal, monocot and eudicot species, we show that CLAW can rapidly produce chloroplast genome assemblies with high similarity to the reference assemblies. CLAW was designed such that users have complete control over parameterisation, allowing individuals to optimise CLAW to their specific use cases. We expect that CLAW will provide researchers (with varying levels of bioinformatics expertise) with an additional resource useful for contributing to the growing number of publicly available chloroplast genome assemblies.
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Genoma de Cloroplastos , Humanos , Genoma de Cloroplastos/genética , Fluxo de Trabalho , Análise de Sequência de DNA , Biologia Computacional , Cloroplastos/genética , Sequenciamento de Nucleotídeos em Larga EscalaRESUMO
OBJECTIVE: The purpose of this study was to describe management and outcomes from a contemporary cohort of children with Wilms tumor complicated by inferior vena caval thrombus. BACKGROUND: The largest series of these patients was published almost 2 decades ago. Since then, neoadjuvant chemotherapy has been commonly used to manage these patients, and outcomes have not been reported. METHODS: Retrospective review of 19 North American centers between 2009 and 2019. Patient and disease characteristics, management, and outcomes were investigated and analyzed. RESULTS: Of 124 patients, 81% had favorable histology (FH), and 52% were stage IV. IVC thrombus level was infrahepatic in 53 (43%), intrahepatic in 32 (26%), suprahepatic in 14 (11%), and cardiac in 24 (19%). Neoadjuvant chemotherapy using a 3-drug regimen was administered in 82% and postresection radiation in 90%. Thrombus level regression was 45% overall, with suprahepatic level showing the best response (62%). Cardiopulmonary bypass (CPB) was potentially avoided in 67%. The perioperative complication rate was significantly lower after neoadjuvant chemotherapy [(25%) vs upfront surgery (55%); P =0.005]. CPB was not associated with higher complications [CPB (50%) vs no CPB (27%); P =0.08]. Two-year event-free survival was 93% and overall survival was 96%, higher in FH cases (FH 98% vs unfavorable histology/anaplastic 82%; P =0.73). Neither incomplete resection nor viable thrombus cells affected event-free survival or overall survival. CONCLUSIONS: Multimodal therapy resulted in excellent outcomes, even with advanced-stage disease and cardiac extension. Neoadjuvant chemotherapy decreased the need for CPB to facilitate resection. Complete thrombectomy may not always be necessary.
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Neoplasias Renais , Oncologia Cirúrgica , Trombose Venosa , Tumor de Wilms , Humanos , Criança , Neoplasias Renais/cirurgia , Veia Cava Inferior/cirurgia , Tumor de Wilms/cirurgia , Tumor de Wilms/tratamento farmacológico , Trombose Venosa/patologia , Trombectomia/métodos , Estudos Retrospectivos , Nefrectomia/métodosRESUMO
Background Multiparametric MRI (mpMRI) improves prostate cancer (PCa) detection compared with systematic biopsy, but its interpretation is prone to interreader variation, which results in performance inconsistency. Artificial intelligence (AI) models can assist in mpMRI interpretation, but large training data sets and extensive model testing are required. Purpose To evaluate a biparametric MRI AI algorithm for intraprostatic lesion detection and segmentation and to compare its performance with radiologist readings and biopsy results. Materials and Methods This secondary analysis of a prospective registry included consecutive patients with suspected or known PCa who underwent mpMRI, US-guided systematic biopsy, or combined systematic and MRI/US fusion-guided biopsy between April 2019 and September 2022. All lesions were prospectively evaluated using Prostate Imaging Reporting and Data System version 2.1. The lesion- and participant-level performance of a previously developed cascaded deep learning algorithm was compared with histopathologic outcomes and radiologist readings using sensitivity, positive predictive value (PPV), and Dice similarity coefficient (DSC). Results A total of 658 male participants (median age, 67 years [IQR, 61-71 years]) with 1029 MRI-visible lesions were included. At histopathologic analysis, 45% (294 of 658) of participants had lesions of International Society of Urological Pathology (ISUP) grade group (GG) 2 or higher. The algorithm identified 96% (282 of 294; 95% CI: 94%, 98%) of all participants with clinically significant PCa, whereas the radiologist identified 98% (287 of 294; 95% CI: 96%, 99%; P = .23). The algorithm identified 84% (103 of 122), 96% (152 of 159), 96% (47 of 49), 95% (38 of 40), and 98% (45 of 46) of participants with ISUP GG 1, 2, 3, 4, and 5 lesions, respectively. In the lesion-level analysis using radiologist ground truth, the detection sensitivity was 55% (569 of 1029; 95% CI: 52%, 58%), and the PPV was 57% (535 of 934; 95% CI: 54%, 61%). The mean number of false-positive lesions per participant was 0.61 (range, 0-3). The lesion segmentation DSC was 0.29. Conclusion The AI algorithm detected cancer-suspicious lesions on biparametric MRI scans with a performance comparable to that of an experienced radiologist. Moreover, the algorithm reliably predicted clinically significant lesions at histopathologic examination. ClinicalTrials.gov Identifier: NCT03354416 © RSNA, 2024 Supplemental material is available for this article.
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Aprendizado Profundo , Imageamento por Ressonância Magnética Multiparamétrica , Neoplasias da Próstata , Masculino , Humanos , Neoplasias da Próstata/diagnóstico por imagem , Neoplasias da Próstata/patologia , Idoso , Estudos Prospectivos , Imageamento por Ressonância Magnética Multiparamétrica/métodos , Pessoa de Meia-Idade , Algoritmos , Próstata/diagnóstico por imagem , Próstata/patologia , Biópsia Guiada por Imagem/métodos , Interpretação de Imagem Assistida por Computador/métodos , Imageamento por Ressonância Magnética/métodosRESUMO
RATIONALE: Knudsen effusion mass spectrometry (KEMS) has been a powerful tool in physical chemistry since 1954. There are many excellent reviews of the basic principles of KEMS in the literature. In this review, we focus on the current status and potential growth areas for this instrumental technique. METHODS: We discuss (1) instrumentation, (2) measurement techniques, and (3) selected novel applications of the technique. Improved heating methods and temperature measurement allow for better control of the Knudsen cell effusive source. Accurate computer models of the effusive beam and its introduction to the ionizer allow optimization of such parameters as sensitivity and removal of background signals. Computer models of the ionizer allow for optimized sensitivity and resolution. Additionally, data acquisition systems specifically tailored to a KEMS system permit improved quantity and quality of data. RESULTS: KEMS is traditionally utilized for thermodynamic measurements of pure compounds and solutions. These measurements can now be strengthened using first principles and model-based computational thermochemistry. First principles can be used to calculate accurate Gibbs energy functions (gefs) for improving third law calculations. Calculated enthalpies of formation and dissociation energies from ab initio methods can be compared to those measured using KEMS. For model-based thermochemistry, solution parameters can be derived from measured thermochemical data on metallic and nonmetallic solutions. Beyond thermodynamic measurements, KEMS has been used for many specific applications. We select examples for discussion: measurements of phase changes, measurement/control of low-oxygen potential systems, thermochemistry of ultrahigh-temperature ceramics, geological applications, nuclear applications, applications to organic and organometallic compounds, and thermochemistry of functional room temperature materials, such as lithium ion batteries. CONCLUSIONS: We present an overview of the current status of KEMS and discuss ideas for improving KEMS instrumentation and measurements. We discuss selected KEMS studies to illustrate future directions of KEMS.
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BACKGROUND. Precise risk stratification through MRI/ultrasound (US) fusion-guided targeted biopsy (TBx) can guide optimal prostate cancer (PCa) management. OBJECTIVE. The purpose of this study was to compare PI-RADS version 2.0 (v2.0) and PI-RADS version 2.1 (v2.1) in terms of the rates of International Society of Urological Pathology (ISUP) grade group (GG) upgrade and downgrade from TBx to radical prostatectomy (RP). METHODS. This study entailed a retrospective post hoc analysis of patients who underwent 3-T prostate MRI at a single institution from May 2015 to March 2023 as part of three prospective clinical trials. Trial participants who underwent MRI followed by MRI/US fusion-guided TBx and RP within a 1-year interval were identified. A single genitourinary radiologist performed clinical interpretations of the MRI examinations using PI-RADS v2.0 from May 2015 to March 2019 and PI-RADS v2.1 from April 2019 to March 2023. Upgrade and downgrade rates from TBx to RP were compared using chi-square tests. Clinically significant cancer was defined as ISUP GG2 or greater. RESULTS. The final analysis included 308 patients (median age, 65 years; median PSA density, 0.16 ng/mL2). The v2.0 group (n = 177) and v2.1 group (n = 131) showed no significant difference in terms of upgrade rate (29% vs 22%, respectively; p = .15), downgrade rate (19% vs 21%, p = .76), clinically significant upgrade rate (14% vs 10%, p = .27), or clinically significant downgrade rate (1% vs 1%, p > .99). The upgrade rate and downgrade rate were also not significantly different between the v2.0 and v2.1 groups when stratifying by index lesion PI-RADS category or index lesion zone, as well as when assessed only in patients without a prior PCa diagnosis (all p > .01). Among patients with GG2 or GG3 at RP (n = 121 for v2.0; n = 103 for v2.1), the concordance rate between TBx and RP was not significantly different between the v2.0 and v2.1 groups (53% vs 57%, p = .51). CONCLUSION. Upgrade and downgrade rates from TBx to RP were not significantly different between patients whose MRI examinations were clinically interpreted using v2.0 or v2.1. CLINICAL IMPACT. Implementation of the most recent PI-RADS update did not improve the incongruence in PCa grade assessment between TBx and surgery.
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Neoplasias da Próstata , Masculino , Humanos , Idoso , Neoplasias da Próstata/patologia , Imageamento por Ressonância Magnética/métodos , Próstata/patologia , Estudos Retrospectivos , Estudos Prospectivos , Biópsia , Prostatectomia/métodos , Biópsia Guiada por Imagem/métodosRESUMO
A stylized macro-scale energy model of least-cost electricity systems relying only on wind and solar generation was used to assess the value of different storage technologies, individually and combined, for the contiguous U.S. as well as for four geographically diverse U.S. load-balancing regions. For the contiguous U.S. system, at current costs, when only one storage technology was deployed, hydrogen energy storage produced the lowest system costs, due to its energy-capacity costs being the lowest of all storage technologies modeled. Additional hypothetical storage technologies were more cost-competitive than hydrogen (long-duration storage) only at very low energy-capacity costs, but they were more cost-competitive than Li-ion batteries (short-duration storage) at relatively high energy- and power-capacity costs. In all load-balancing regions investigated, the least-cost systems that included long-duration storage had sufficient energy and power capacity to also meet short-duration energy and power storage needs, so that the addition of short-duration storage as a second storage technology did not markedly reduce total system costs. Thus, in electricity systems that rely on wind and solar generation, contingent on social and geographic constraints, long-duration storage may cost-effectively provide the services that would otherwise be provided by shorter-duration storage technologies.
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Catalyst-free, radical-based reactive processing is used to transform low-density polyethylene (LDPE) into polyethylene covalent adaptable networks (PE CANs) using a dialkylamino disulfide crosslinker, BiTEMPS methacrylate (BTMA). Two versions of BTMA are used, BTMA-S2, with nearly exclusively disulfide bridges, and BTMA-Sn, with a mixture of oligosulfide bridges, to produce S2 PE CAN and Sn PE CAN, respectively. The two PE CANs exhibit identical crosslink densities, but the S2 PE CAN manifests faster stress relaxation, with average relaxation times â¼4.5 times shorter than those of Sn PE CAN over a 130 to 160 °C temperature range. The more rapid dynamics of the S2 PE CAN translate into a shorter compression-molding reprocessing time at 160 °C of only 5 min (vs 30 min for the Sn PE CAN) to achieve full recovery of crosslink density. Both PE CANs are melt-extrudable and exhibit full recovery within experimental uncertainty of crosslink density after extrusion. Both PE CANs are self-healable, with a crack fully repaired and the original tensile properties restored after 30 min for the S2 PE CAN or 60 min for the Sn PE CAN at a temperature slightly above the LDPE melting point and without the assistance of external forces.
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OBJECTIVES: Inflammation on diagnostic rectal biopsy for children with suspected Hirschsprung disease (HSCR) is reported on pathology, and its significance is unknown. We describe the management and outcomes of a cohort with inflammation on rectal biopsy compared to those without. Specifically, to address the hypothesis that inflammation on diagnostic biopsy is associated with increased complication rates irrespective of intervention type and timing. METHODS: A single institution retrospective review of children with HSCR who underwent biopsy and endorectal pull-through (ERPT) from 2010 to 2020 was performed. The primary outcome was overall complications at 30-days following ERPT. Secondary outcomes included timing and type of operative intervention as well as postoperative enterocolitis diagnosed within 6-months of ERPT. RESULTS: Forty-nine children were identified; inflammation was present on diagnostic biopsy for 17 children. Those with inflammation were more likely to have clinical evidence of enterocolitis at the time of biopsy (p = 0.001) and were more likely to undergo leveling colostomy before ERPT (p = 0.01). Children with inflammation had a higher anastomotic leak rate (p = 0.04). Subgroup analysis of patients with inflammation undergoing primary ERPT versus leveling colostomy demonstrated no significant difference in outcomes following definitive ERPT. CONCLUSIONS: Our study suggests inflammation on diagnostic rectal biopsy for HSCR is associated with increased anastomotic leak rates. While additional prospective studies are indicated, attention to methods of mitigating inflammation and confirming its resolution before definitive pull-through may be of benefit for improving clinical outcomes in patients found with inflammation on diagnostic rectal biopsy.
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Enterocolite , Doença de Hirschsprung , Criança , Humanos , Lactente , Doença de Hirschsprung/complicações , Doença de Hirschsprung/diagnóstico , Doença de Hirschsprung/cirurgia , Reto/cirurgia , Estudos Prospectivos , Fístula Anastomótica , Relevância Clínica , Inflamação/complicações , Enterocolite/diagnóstico , Enterocolite/etiologia , Biópsia/efeitos adversos , Estudos Retrospectivos , Complicações Pós-Operatórias/diagnóstico , Complicações Pós-Operatórias/etiologiaRESUMO
OBJECTIVES: To review recent evaluations of pediatric patients with intestinal failure (IF) for intestinal transplantation (ITx), waiting list decisions, and outcomes of patients listed and not listed for ITx at our center. METHODS: Retrospective chart review of 97 patients evaluated for ITx from January 2014 to December 2021 including data from referring institutions and protocol laboratory testing, body imaging, endoscopy, and liver biopsy in selected cases. Survival analysis used Kaplan-Meier estimates and Cox proportional hazards regression. RESULTS: Patients were referred almost entirely from outside institutions, one-third because of intestinal failure-associated liver disease (IFALD), two-thirds because of repeated infective and non-IFALD complications under minimally successful intestinal rehabilitation, and a single patient because of lost central vein access. The majority had short bowel syndrome (SBS). Waiting list placement was offered to 67 (69%) patients, 40 of whom for IFALD. The IFALD group was generally younger and more likely to have SBS, have received more parenteral nutrition, have demonstrated more evidence of chronic inflammation and have inferior kidney function compared to those offered ITx for non-IFALD complications and those not listed. ITx was performed in 53 patients. Superior postevaluation survival was independently associated with higher serum creatinine (hazard ratio [HR] 15.410, p = 014), whereas inferior postevaluation survival was associated with ITx (HR 0.515, p = 0.035) and higher serum fibrinogen (HR 0.994, p = 0.005). CONCLUSIONS: Despite recent improvements in IF management, IFALD remains a prominent reason for ITx referral. Complications of IF inherent to ITx candidacy influence postevaluation and post-ITx survival.
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Intestinos , Listas de Espera , Humanos , Estudos Retrospectivos , Masculino , Feminino , Criança , Pré-Escolar , Lactente , Intestinos/transplante , Adolescente , Insuficiência Intestinal , Síndrome do Intestino Curto/cirurgia , Hepatopatias/cirurgiaRESUMO
OBJECTIVE: Intuitive eating (IE) is an emerging health promotion framework which has shown promise in the prevention and early intervention of disordered eating (DE) behavior in adults. This study sought to extend this work by assessing the feasibility and preliminary efficacy of a 5-week IE intervention, "Your Body is Your Home," delivered in school classrooms for early adolescents aged 11-13. METHODS: The present study utilized a quasi-experimental design. Eligibility criteria were defined a priori and published in a registered protocol. Four classrooms (n = 128 student participants) were recruited into two streams, and self-report questionnaires were administered at pre-test, post-test, and 4-week follow-up. The questionnaires included the Intuitive Eating Scale for Early Adolescents (IES-2-EA), the Body Appreciation Scale (BAS-2), and the WHO Wellbeing Index (WHO-5). Linear mixed models were used to conduct preliminary efficacy testing. RESULTS: The results indicate that a brief classroom-based IE intervention is feasible and acceptable for both students and teaching staff; retention, fidelity, and attendance targets were achieved. Students and teachers rated all five sessions of the intervention as a highly feasible method of health promotion. Further, preliminary efficacy data suggest IE interventions aimed at early adolescents may be a feasible way of improving certain aspects of IE (p < .001) in male and female participants, and body appreciation (p < .001) in male participants. DISCUSSION: The study provides preliminary support for the implementation and evaluation of an IE intervention as part of school-based health promotion and offers preliminary effect size estimates for a larger-scale randomized trial. PUBLIC SIGNIFICANCE: Existing evidence suggests that IE may be a useful framework through which relationships with food and the body can be improved. The present study seeks to extend this work by adapting the framework for early adolescents (among whom the framework is not well understood) and examining feasibility, acceptability, and preliminary changes to several health and well-being metrics following a 5-week school-based intervention.
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Transtornos da Alimentação e da Ingestão de Alimentos , Promoção da Saúde , Adulto , Humanos , Masculino , Feminino , Adolescente , Estudos de Viabilidade , Promoção da Saúde/métodos , Transtornos da Alimentação e da Ingestão de Alimentos/prevenção & controle , Inquéritos e Questionários , EstudantesRESUMO
This chapter is intended to provide a brief overview of the optics of surgical microscopes and rigid endoscopes, with the aim of providing the reader with the principles dictating the nature of surgical visualization when either of the visual control systems is used. It is not by any means geared toward elaborating on the detailed optical physics of these systems, which is beyond the scope and objective of this chapter.
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Microscopia , Humanos , Microscopia/instrumentação , Microscopia/métodos , Procedimentos Neurocirúrgicos/instrumentação , Procedimentos Neurocirúrgicos/métodos , Microcirurgia/instrumentação , Microcirurgia/métodos , Endoscópios , NeuroendoscópiosRESUMO
BACKGROUND: Family caregivers of patients with severe acute brain injury (SABI) admitted to intensive care units (ICUs) with coma experience heightened emotional distress stemming from simultaneous stressors. Stress and coping frameworks can inform psychosocial intervention development by elucidating common challenges and ways of navigating such experiences but have yet to be employed with this population. The present study therefore sought to use a stress and coping framework to characterize the stressors and coping behaviors of family caregivers of patients with SABI hospitalized in ICUs and recovering after coma. METHODS: Our qualitative study recruited a convenience sample from 14 US neuroscience ICUs. Participants were family caregivers of patients who were admitted with ischemic stroke, intracerebral hemorrhage, subarachnoid hemorrhage, traumatic brain injury, or hypoxic-ischemic encephalopathy; had experienced a comatose state for > 24 h; and completed or were scheduled for tracheostomy and/or gastrostomy tube placement. Participants were recruited < 7 days after transfer out of the neuroscience ICU. We conducted live online video interviews from May 2021 to January 2022. One semistructured interview per participant was recorded and subsequently transcribed. Recruitment was stopped when thematic saturation was reached. We deductively derived two domains using a stress and coping framework to guide thematic analysis. Within each domain, we inductively derived themes to comprehensively characterize caregivers' experiences. RESULTS: We interviewed 30 caregivers. We identified 18 themes within the two theory-driven domains, including ten themes describing practical, social, and emotional stressors experienced by caregivers and eight themes describing the psychological and behavioral coping strategies that caregivers attempted to enact. Nearly all caregivers described using avoidance or distraction as an initial coping strategy to manage overwhelming emotions. Caregivers also expressed awareness of more adaptive strategies (e.g., cultivation of positive emotions, acceptance, self-education, and soliciting social and medical support) but had challenges employing them because of their heightened emotional distress. CONCLUSIONS: In response to substantial stressors, family caregivers of patients with SABI attempted to enact various psychological and behavioral coping strategies. They described avoidance and distraction as less helpful than other coping strategies but had difficulty engaging in alternative strategies because of their emotional distress. These findings can directly inform the development of additional resources to mitigate the long-term impact of acute psychological distress among this caregiver population.
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Cuidadores , Capacidades de Enfrentamento , Humanos , Cuidadores/psicologia , Coma , Adaptação Psicológica , Unidades de Terapia IntensivaRESUMO
OBJECTIVE: In 2007, New York enacted the Sex Offender Management and Treatment Act, empowering the state to civilly manage individuals who have committed sexual offenses (respondents) and are deemed to have a mental abnormality (MA) that predisposes them to sexually recidivate after serving their criminal sentences. We sought to replicate and extend a previous study (Lu et al., 2015) to identify factors predicting legal decisions. HYPOTHESES: We predicted, on the basis of previous research, that clinical information (e.g., diagnosis) as well as empirically supported risk factors (e.g., sexual deviance) would predict trial outcomes. METHOD: We analyzed multiple pieces of demographic, criminogenic, and clinical data on three nested subsamples of respondents on the basis of the legal process: MA consent (n = 713), MA trial (n = 316), and disposition hearing (n = 643). The binary outcomes of interest were as follows: For the MA consent subsample, it was whether the respondent waived their MA trial; for the MA trial subsample, it was whether the respondent was found at trial to have an MA; and for the disposition hearing, it was whether the respondent was ordered to inpatient or outpatient civil management. RESULTS: The strongest predictor of waiving the trial was geographic location; respondents outside New York City and Long Island were more likely to waive their trials (ORs = 2.38-3.37). The strongest predictors of MA trial and disposition hearing outcomes were Diagnostic and Statistical Manual of Mental Disorders diagnoses; pedophilia (ORs = 4.05-7.22) and sexual sadism (ORs = 2.68-7.03) diagnoses increased the likelihood of an MA finding and confinement order. CONCLUSIONS: Judges and juries give significant weight to clinical information, particularly pedophilia diagnoses, when making civil management legal decisions. (PsycInfo Database Record (c) 2024 APA, all rights reserved).
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Criminosos , Transtornos Parafílicos , Delitos Sexuais , Humanos , Comportamento Sexual , Transtornos Parafílicos/diagnóstico , Cidade de Nova IorqueRESUMO
OBJECTIVE: The purpose of this study was to evaluate the safety of a water-soluble contrast challenge as part of a nonoperative management algorithm in children with an adhesive small bowel obstruction (ASBO). BACKGROUND: Predicting which children will successfully resolve their ASBO with non-operative management at the time of admission remains difficult. Additionally, the safety of a water-soluble contrast challenge for children with ASBO has not been established in the literature. METHODS: A retrospective review was performed of patients who underwent non-operative management for an ASBO and received a contrast challenge across 5 children's hospitals between 2012 and 2020. Safety was assessed by comparing the complication rate associated with a contrast challenge against a pre-specified maximum acceptable level of 5%. Sensitivity, specificity, negative (NPV) and positive (PPV) predictive values of a contrast challenge to identify successful nonoperative management were calculated. RESULTS: Of 82 children who received a contrast challenge, 65% were successfully managed nonoperatively. The most common surgical indications were failure of the contrast challenge or failure to progress after initially passing the contrast challenge. There were no complications related to contrast administration (0%; 95% confidence interval: 0-3.6%, P = 0.03). The contrast challenge was highly reliable in determining which patients would require surgery and which could be successfully managed non-operatively (sensitivity 100%, specificity 86%, NPV 100%, PPV 93%). CONCLUSION: A contrast challenge is safe in children with ASBO and has a high predictive value to assist in clinical decision-making.
Assuntos
Obstrução Intestinal , Humanos , Criança , Aderências Teciduais/etiologia , Aderências Teciduais/terapia , Obstrução Intestinal/diagnóstico , Obstrução Intestinal/etiologia , Obstrução Intestinal/terapia , Meios de Contraste/efeitos adversos , Estudos Retrospectivos , Algoritmos , Água , Resultado do TratamentoRESUMO
BACKGROUND: The practice of compassion in healthcare leads to better patient and clinician outcomes. However, compassion in healthcare is increasingly lacking, and the rates of professional burnout are high. Most research to date has focused on individual-level predictors of compassion and burnout. Little is known regarding how organizational factors might impact clinicians' ability to express compassion and well-being. The main study objective was to describe the association between personal and organizational value discrepancies and compassion ability, burnout, job satisfaction, absenteeism and consideration of early retirement among healthcare professionals. METHODS: More than 1000 practising healthcare professionals (doctors, nurses and allied health professionals) were recruited in Aotearoa/New Zealand. The study was conducted via an online cross-sectional survey and was preregistered on AsPredicted (75407). The main outcome measures were compassionate ability and competence, burnout, job satisfaction and measures of absenteeism and consideration of early retirement. RESULTS: Perceived discrepancies between personal and organizational values predicted lower compassion ability (B = -0.006, 95% CI [-0.01, -0.00], p < 0.001 and f 2 = 0.05) but not competence (p = 0.24), lower job satisfaction (B = -0.20, 95% CI [-0.23, -0.17], p < 0.001 and f 2 = 0.14), higher burnout (B = 0.02, 95% CI [0.01, 0.03], p < 0.001 and f 2 = 0.06), absenteeism (B = 0.004, 95% CI [0.00, 0.01], p = 0.01 and f 2 = 0.01) and greater consideration of early retirement (B = 0.02, 95% CI [0.00, 0.03], p = 0.04 and f 2 = 0.004). CONCLUSIONS: Working in value-discrepant environments predicts a range of poorer outcomes among healthcare professionals, including hindering the ability to be compassionate. Scalable organizational and systems-level interventions that address operational processes and practices that lead to the experience of value discrepancies are recommended to improve clinician performance and well-being outcomes.