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1.
Health Promot J Austr ; 35(2): 303-310, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-37208977

RESUMO

ISSUE ADDRESSED: Strategies that support the implementation of the SunSmart program in primary schools are essential to optimising policy uptake. Evidence outlining the type of support required, however, is lacking. This project explored the usefulness of an implementation support approach to sun safe hat-wearing in schools. METHODS: Formative research was undertaken with 16 primary schools in Greater Western Sydney to explore current sun protection behaviours and practices, perceived barriers and motivators of sun safe hat-wearing, and resource needs. Based on these insights, a resource toolkit was developed and tested in 14 demonstration sites. Follow-up interviews evaluated the usefulness of the toolkit and implementation support approach. RESULTS: Sun safe hat-wearing practices varied among schools. Commonly reported motivators included school policies, role modelling, incentives and knowledge. Commonly reported barriers included negative social norms, forgetfulness, cost and lack of understanding. Formative insights informed the development of the 'Motivation, Access, Triggers' Model and a 23-resource toolkit. Following toolkit rollout, champions reported that the ability to select resources according to local needs was useful, and most found that the toolkit supported their school with sun safe hat-wearing. CONCLUSIONS: A toolkit with local champions and leadership buy-in has the potential to improve policy implementation. The opportunity to prioritise resource selection enables schools to address their specific needs in line with their sun protection policy. SO WHAT?: The provision of policy implementation support can help schools overcome the challenges of transforming a written SunSmart policy into practice.


Assuntos
Neoplasias Cutâneas , Queimadura Solar , Humanos , Protetores Solares/uso terapêutico , Roupa de Proteção , Serviços de Saúde Escolar , Políticas , Instituições Acadêmicas , Queimadura Solar/prevenção & controle , Neoplasias Cutâneas/prevenção & controle
2.
Acad Psychiatry ; 48(2): 153-157, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-37493959

RESUMO

OBJECTIVE: Relative to the Black American population size, there is an underrepresentation of Black psychiatrists in the USA. In order to address this issue, it is important to explore factors that contribute to Black medical students' decision to pursue a career in psychiatry. METHODS: First-year psychiatry residents who identify as Black (N = 7) were interviewed. Career Construction Theory provided a structured framework for the interview process. For qualitative analysis of data, codes were assigned to reflect concepts and develop themes. RESULTS: All participants mentioned the impact of being a Black psychiatrist in the Black community, the influence of strong female role models on their life, and the importance of the fit between their personality and the work done within psychiatry. The majority of interviewees identified macro-level and cultural events that had influenced them and discussed a desire for advocacy and the influence of Black role models, perseverance, and the importance of work-life balance. CONCLUSION: This qualitative study identified many influential factors that were deemed important to Black interns in their decision to pursue a residency in psychiatry. With the information learned from these interviews, educators within psychiatry can bolster their support of Black medical students, encourage pursuit of a career in psychiatry, and ultimately, work toward reducing disparities in psychiatric care. Future research should examine additional collective notions of career decision-making.


Assuntos
Psiquiatria , Estudantes de Medicina , Humanos , Feminino , Escolha da Profissão , Psiquiatria/educação , Estudantes de Medicina/psicologia , Personalidade , Pesquisa Qualitativa , Inquéritos e Questionários
3.
Mol Psychiatry ; 26(11): 6469-6480, 2021 11.
Artigo em Inglês | MEDLINE | ID: mdl-33963285

RESUMO

The OTX2 homeoprotein transcription factor is expressed in the dopaminergic neurons of the ventral tegmental area, which projects to limbic structures controlling complex behaviors. OTX2 is also produced in choroid plexus epithelium, from which it is secreted into cerebrospinal fluid and transferred to limbic structure parvalbumin interneurons. Previously, adult male mice subjected to early-life stress were found susceptible to anxiety-like behaviors, with accompanying OTX2 expression changes in ventral tegmental area or choroid plexus. Here, we investigated the consequences of reduced OTX2 levels in Otx2 heterozygote mice, as well as in Otx2+/AA and scFvOtx2tg/0 mouse models for decreasing OTX2 transfer from choroid plexus to parvalbumin interneurons. Both male and female adult mice show anxiolysis-like phenotypes in all three models. In Otx2 heterozygote mice, we observed no changes in dopaminergic neuron numbers and morphology in ventral tegmental area, nor in their metabolic output and projections to target structures. However, we found reduced expression of parvalbumin in medial prefrontal cortex, which could be rescued in part by adult overexpression of Otx2 specifically in choroid plexus, resulting in increased anxiety-like behavior. Taken together, OTX2 synthesis by the choroid plexus followed by its secretion into the cerebrospinal fluid is an important regulator of anxiety-related phenotypes in the mouse.


Assuntos
Plexo Corióideo , Fatores de Transcrição Otx , Animais , Ansiedade , Plexo Corióideo/metabolismo , Feminino , Interneurônios/metabolismo , Masculino , Camundongos , Fatores de Transcrição Otx/genética , Fatores de Transcrição Otx/metabolismo , Parvalbuminas/metabolismo
4.
Acad Psychiatry ; 46(5): 622-626, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-35426081

RESUMO

OBJECTIVE: A survey was conducted to determine US psychiatry residency directors' attitudes regarding current measures of medical student performance and their preferences for the future. METHODS: A team of psychiatry medical student educators and residency program directors developed a 23-question survey. In July 2021, links to the survey were sent out to all program directors registered with the American Association of Directors of Psychiatric Residency Training. RESULTS: Seventy program directors out of 223 initiated the survey, resulting in a response rate of 31.4%. Forty percent of respondents reported that the most important use of the Medical Student Performance Evaluation (MSPE) is in screening out applicants for interviews, and only 26.1% reported that the MSPE in its current form could be trusted to provide a valid and reliable assessment of a student's medical school performance. Most respondents agreed that in the absence of United States Medical Licensing Examination (USMLE) step 1 numerical scores, the existing MSPE format/content requirements should be modified, use a set of ranking categories that are uniform across all medical schools, and be supplemented with additional measures of the student's character and ability specific to psychiatry. CONCLUSIONS: US psychiatry program directors are eager for change when it comes to the MSPE and how it reports rankings, grades, and professionalism. The transition of the USMLE step 1 score reporting to pass/fail presents an opportunity to pursue this change and for stakeholders from all medical specialties to work together toward a shared goal of an improved residency selection process.


Assuntos
Internato e Residência , Psiquiatria , Estudantes de Medicina , Atitude , Avaliação Educacional/métodos , Humanos , Critérios de Admissão Escolar , Inquéritos e Questionários , Estados Unidos
5.
J Surg Res ; 262: 101-114, 2021 06.
Artigo em Inglês | MEDLINE | ID: mdl-33561721

RESUMO

BACKGROUND: Resuscitative endovascular balloon occlusion of the aorta (REBOA) has become a standard adjunct for the management of life-threatening truncal hemorrhage, but the technique is limited by the sequalae of ischemia distal to occlusion. Partial REBOA addresses this limitation, and the recent Food and Drug Administration approval of a device designed to enable partial REBOA will broaden its application. We conducted a systematic review of the available animal and clinical literature on the methods, impacts, and outcomes associated with partial REBOA as a technique to enable targeted proximal perfusion and limit distal ischemic injury. We hypothesize that a systematic review of the published animal and human literature on partial REBOA will provide actionable insight for the use of partial REBOA in the context of future wider clinical implementation of this technique. METHODS: Using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses for Protocols guidelines, we conducted a search of the available literature which used partial inflation of a REBOA balloon catheter. Findings from 22 large animal studies and 14 clinical studies met inclusion criteria. RESULTS: Animal and clinical results support the benefits of partial REBOA including extending the resuscitative window extended safe occlusion time, improved survival, reduced proximal hypertension, and reduced resuscitation requirements. Clinical studies provide practical physiologic targets for partial REBOA including a period of total occlusion followed by gradual balloon deflation to achieve a target proximal pressure and/or target distal pressure. CONCLUSIONS: Partial REBOA has several benefits which have been observed in animal and clinical studies, most notably reduced ischemic insult to tissues distal to occlusion and improved outcomes compared with total occlusion. Practical clinical protocols are available for the implementation of partial REBOA in cases of life-threatening torso hemorrhage.


Assuntos
Oclusão com Balão/métodos , Procedimentos Endovasculares/métodos , Choque Hemorrágico/terapia , Animais , Aorta , Humanos , Ressuscitação/métodos
6.
J Surg Res ; 266: 125-141, 2021 10.
Artigo em Inglês | MEDLINE | ID: mdl-33991999

RESUMO

OBJECTIVE: Valproic acid (VPA) treatment improves survival in animal models of injuries on doses higher than those allowed by Food and Drug Administration (FDA). We investigated the proteomic alterations induced by a single high-dose (140mg/kg) of VPA (VPA140) compared to the FDA-approved dose of 30mg/kg (VPA30) in healthy humans. We also describe the proteomic and transcriptomic changes induced by VPA140 in an injured patient. We hypothesized that VPA140 would induce cytoprotective changes in the study participants. METHODS: Serum samples were obtained from healthy subjects randomized to two groups; VPA140 and VPA30 at 3 timepoints: 0h(baseline), 2h, and 24h following infusion(n = 3/group). Samples were also obtained from an injured patient that received VPA140 at 0h, 6h and 24h following infusion. Proteomic analyses were performed using liquid chromatography-mass spectrometry (LC-MS/MS), and transcriptomic analysis was performed using RNA-sequencing. Differentially expressed (DE) proteins and genes were identified for functional annotation and pathway analysis using iPathwayGuide and gene set enrichment analysis (GSEA), respectively. RESULTS: For healthy individuals, a dose comparison was performed between VPA140 and VPA30 groups at 2 and 24 h. Functional annotation showed that top biological processes in VPA140 versus VPA30 analysis at 2 h included regulation of fatty acid (P = 0.002) and ATP biosynthesis (P = 0.007), response to hypoxia (P = 0.017), cell polarity regulation (P = 0.031), and sequestration of calcium ions (P = 0.031). Top processes at 24 h in VPA140 versus VPA30 analysis included amino acid metabolism (P = 0.023), collagen catabolism (P = 0.023), and regulation of protein breakdown (P = 0.023). In the injured patient, annotation of the DE proteins in the serum showed that top biological processes at 2 h included neutrophil chemotaxis (P = 0.002), regulation of cellular response to heat (P = 0.008), regulation of oxidative stress (P = 0.008) and regulation of apoptotic signaling pathway (P = 0.008). Top biological processes in the injured patient at 24 h included autophagy (P = 0.01), glycolysis (P = 0.01), regulation of apoptosis (P = 0.01) and neuron apoptotic processes (P = 0.02). CONCLUSIONS: VPA140 induces cytoprotective changes in human proteome not observed in VPA30. These changes may be responsible for its protective effects in response to injuries.


Assuntos
Lesões Encefálicas Traumáticas/tratamento farmacológico , Substâncias Protetoras/farmacologia , Proteoma/efeitos dos fármacos , Transcriptoma/efeitos dos fármacos , Ácido Valproico/farmacologia , Adolescente , Adulto , Idoso , Biomarcadores/metabolismo , Lesões Encefálicas Traumáticas/metabolismo , Cromatografia Líquida , Relação Dose-Resposta a Droga , Método Duplo-Cego , Feminino , Seguimentos , Perfilação da Expressão Gênica/métodos , Voluntários Saudáveis , Humanos , Masculino , Espectrometria de Massas , Pessoa de Meia-Idade , Substâncias Protetoras/uso terapêutico , Proteoma/metabolismo , Proteômica/métodos , Fatores de Tempo , Resultado do Tratamento , Ácido Valproico/uso terapêutico , Adulto Jovem
7.
Infection ; 49(1): 83-93, 2021 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-33000445

RESUMO

PURPOSE: Microbial infection stimulates neutrophil/macrophage/monocyte extracellular trap formation, which leads to the release of citrullinated histone H3 (CitH3) catalyzed by peptidylarginine deiminase (PAD) 2 and 4. Understanding these molecular mechanisms in the pathogenesis of septic shock will be an important next step for developing novel diagnostic and treatment modalities. We sought to determine the expression of CitH3 in patients with septic shock, and to correlate CitH3 levels with PAD2/PAD4 and clinically relevant outcomes. METHODS: Levels of CitH3 were measured in serum samples of 160 critically ill patients with septic and non-septic shock, and healthy volunteers. Analyses of clinical and laboratory characteristics of patients were conducted. RESULTS: Levels of circulating CitH3 at enrollment were significantly increased in septic shock patients (n = 102) compared to patients hospitalized with non-infectious shock (NIC) (n = 32, p < 0.0001). The area under the curve (95% CI) for distinguishing septic shock from NIC using CitH3 was 0.76 (0.65-0.86). CitH3 was positively correlated with PAD2 and PAD4 concentrations and Sequential Organ Failure Assessment Scores [total score (r = 0.36, p < 0.0001)]. The serum levels of CitH3 at 24 h (p < 0.01) and 48 h (p < 0.05) were significantly higher in the septic patients that did not survive. CONCLUSION: CitH3 is increased in patients with septic shock. Its serum concentrations correlate with disease severity and prognosis, which may yield vital insights into the pathophysiology of sepsis.


Assuntos
Citrulina/metabolismo , Histonas , Choque Séptico/diagnóstico , Choque/diagnóstico , Idoso , Diagnóstico Diferencial , Feminino , Histonas/sangue , Histonas/química , Humanos , Masculino , Pessoa de Meia-Idade , Pró-Calcitonina/sangue , Proteína-Arginina Desiminase do Tipo 2/sangue , Proteína-Arginina Desiminase do Tipo 4/sangue , Estudos Retrospectivos , Choque/sangue , Choque/epidemiologia , Choque Séptico/sangue , Choque Séptico/epidemiologia , Resultado do Tratamento
8.
Acad Psychiatry ; 45(2): 174-179, 2021 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-33409938

RESUMO

OBJECTIVE: One possible factor associated with choosing psychiatry as a career is students rating their psychiatry clerkship as excellent. Although this suggests that an excellent clerkship may improve recruitment into psychiatry, to our knowledge there has never been a multi-site survey study of graduating medical students that identify what factors lead to an excellent clerkship rating. The purpose of this study was to determine factors that medical student find important for an excellent psychiatry clerkship experience. METHODS: A total of 1457 graduating medical students at eight institutions were sent a 22-item Likert-type survey about what clinical and administrative factors they considered when rating their psychiatry clerkship via email in the fall of their last year. 357 (24.5%) responded and Z-test, t-tests, and multiple regression analyses were carried out. RESULTS: The factors which students rated higher than the mean included planned application to psychiatry residency, clear expectations, a transparent grading process, feeling part of a team, timely feedback by faculty, and a competent clerkship coordinator and director. Lectures, active learning, and self-study were rated as less pertinent, and the overall clerkship rating did differ between students going into psychiatry versus other specialties. CONCLUSIONS: Although the low response undermines the validity of findings, by improving the administration of the clerkship with clear expectations, grading, feedback, and by encouraging clinical teams to fully integrate students clerkship ratings might improve which could potentially improve recruitment. Future research could further quantify and qualify these parameters and compare psychiatric clerkships to other clerkships.


Assuntos
Estágio Clínico , Psiquiatria , Estudantes de Medicina , Humanos , Aprendizagem Baseada em Problemas , Psiquiatria/educação , Inquéritos e Questionários
9.
Acad Psychiatry ; 44(6): 727-733, 2020 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-32661946

RESUMO

OBJECTIVE: There is a national shortage of psychiatrists. To grow the workforce, educators must understand the factors that influence the choice of psychiatry as a specialty for medical students in the Generation Y cohort. METHODS: Psychiatry residents born between 1981 and 2000 were recruited from six psychiatry training programs across the USA and were interviewed in the fall of their first year. The interviews were coded and analyzed qualitatively for themes. Career Construction Theory (CCT) was applied to relate the themes within the four domains of Career Adaptability (a focus of CCT): concern, control, curiosity, and confidence. RESULTS: The majority of themes mapped onto the four domains. A fifth domain, "contribution," was created to capture additional themes. Themes associated with choosing psychiatry as a career included Practice Concerns and Economic/Lifestyle Concerns (concern), Changes in Stigma and Changes in Legitimacy (control), Exploring Humanity and Exposures to Psychiatry (curiosity), Abilities Called Upon by the Field, Recognized Qualities in the Participant, and Recognized Qualities in the Faculty/Residents (confidence), and Hoping to Make a Difference and Engaging in Research/Technology (contribution). CONCLUSIONS: With the knowledge generated from this study, educators now have a guide for the kinds of learning experiences that may attract Generation Y students to the field, and can identify those with the background, values, or personality traits most likely to find a career in psychiatry to be attractive.


Assuntos
Educação Médica , Psiquiatria , Estudantes de Medicina , Escolha da Profissão , Humanos , Psiquiatria/educação , Recursos Humanos
13.
J Surg Res ; 218: 306-315, 2017 10.
Artigo em Inglês | MEDLINE | ID: mdl-28985866

RESUMO

INTRODUCTION: A reproducible, lethal noncompressible torso hemorrhage model is important to civilian and military trauma research. Current large animal models balancing clinical applicability with standardization and internal validity. As such, large animal models of trauma vary widely in the surgical literature, limiting comparisons. Our aim was to create and validate a porcine model of uncontrolled hemorrhage that maximizes reproducibility and standardization. METHODS: Seven Yorkshire-cross swine were anesthetized, instrumented, and splenectomized. A simple liver tourniquet was applied before injury to prevent unregulated hemorrhage while creating a traumatic amputation of 30% of the liver. Release of the tourniquet and rapid abdominal closure following injury provided a standardized reference point for the onset and duration of uncontrolled hemorrhage. At the moment of death, the liver tourniquet was quickly reapplied to provide accurate quantification of intra-abdominal blood loss. Weight and volume of the resected and residual liver segments were measured. Hemodynamic parameters were recorded continuously throughout each experiment. RESULTS: This liver injury was rapidly and universally lethal (11.2 ± 4.9 min). The volume of hemorrhage (35.8% ± 6% of total blood volume) and severity of uncontrolled hemorrhage (100% of animals deteriorated to a sustained mean arterial pressure <35 mmHg for 5 min) were consistent across all animals. Use of the tourniquet effectively halted preprocedure and postprocedure blood loss allowing for accurate quantification of amount of hemorrhage over a defined period. In addition, the tourniquet facilitated the creation of a consistent liver resection weight (0.0043 ± 0.0003 liver resection weight: body weight) and as a percentage of total liver resection weight (27% ± 2.2%). CONCLUSIONS: This novel tourniquet-assisted noncompressible torso hemorrhage model creates a standardized, reproducible, highly lethal, and clinically applicable injury in swine. Use of the tourniquet allowed for consistent liver injury and precise control over hemorrhage. Recorded blood loss was similar across all animals. Improving reproducibility and standardization has the potential to offer improvements in large animal translational models of hemorrhage. LEVEL OF EVIDENCE: Level I.


Assuntos
Modelos Animais de Doenças , Hemoperitônio/etiologia , Fígado/lesões , Animais , Feminino , Hemoperitônio/mortalidade , Masculino , Suínos
15.
Environ Sci Technol ; 49(5): 3175-84, 2015 Mar 03.
Artigo em Inglês | MEDLINE | ID: mdl-25594231

RESUMO

The Marcellus Shale is the largest natural gas deposit in the U.S. and rapid development of this resource has raised concerns about regional air pollution. A field campaign was conducted in the southwestern Pennsylvania region of the Marcellus Shale to investigate the impact of unconventional natural gas (UNG) production operations on regional air quality. Whole air samples were collected throughout an 8050 km(2) grid surrounding Pittsburgh and analyzed for methane, carbon dioxide, and C1-C10 volatile organic compounds (VOCs). Elevated mixing ratios of methane and C2-C8 alkanes were observed in areas with the highest density of UNG wells. Source apportionment was used to identify characteristic emission ratios for UNG sources, and results indicated that UNG emissions were responsible for the majority of mixing ratios of C2-C8 alkanes, but accounted for a small proportion of alkene and aromatic compounds. The VOC emissions from UNG operations accounted for 17 ± 19% of the regional kinetic hydroxyl radical reactivity of nonbiogenic VOCs suggesting that natural gas emissions may affect compliance with federal ozone standards. A first approximation of methane emissions from the study area of 10.0 ± 5.2 kg s(-1) provides a baseline for determining the efficacy of regulatory emission control efforts.


Assuntos
Poluentes Atmosféricos/análise , Poluentes Atmosféricos/normas , Dióxido de Carbono/análise , Monitoramento Ambiental/estatística & dados numéricos , Metano/análise , Campos de Petróleo e Gás , Compostos Orgânicos Voláteis/análise , Monitoramento Ambiental/normas , Gás Natural/análise , Pennsylvania
16.
J Emerg Med ; 48(6): 685-92, 2015 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-25837230

RESUMO

BACKGROUND: A clear command structure ensures quality patient care despite overwhelmed resources during a mass casualty incident (MCI). The American College of Surgeons has stated that surgeons should strive to occupy these leadership roles. OBJECTIVE: We sought to identify whether surgeons, as compared to emergency physicians, are sufficiently prepared to assume command in the event of a mass disaster. METHODS: We surveyed hospital-affiliated surgeons and emergency physicians to assess their knowledge of MCI response principles and to gauge opinions regarding who should be in charge during a disaster. RESULTS: One hundred and forty-nine (58%) surveys were completed, 78 by surgeons and 71 by emergency physicians. Both groups demonstrated a critical lack of knowledge regarding fundamental principles and key logistical components of preparedness and MCI response. Surgeons as a group were even less prepared than emergency physicians. Of those surgeons who had reviewed their hospital's disaster plan, half (50%) still did not know where to report for an MCI activation. Nonetheless, both groups believed they had sufficient training and both asserted they ought to occupy command positions during a disaster scenario. CONCLUSIONS: Errors in disaster triage have been known to increase mortality as well as the monetary cost of disaster response. Funding exists to improve hospital preparedness, but surgeons are lagging behind emergency physicians in taking advantage of these opportunities. Overall, it is imperative that physicians improve their understanding of the MCI response protocols they will be tasked to implement should disaster strike.


Assuntos
Serviços Médicos de Emergência/organização & administração , Medicina de Emergência , Conhecimentos, Atitudes e Prática em Saúde , Incidentes com Feridos em Massa , Especialidades Cirúrgicas , Adulto , Atitude do Pessoal de Saúde , Planejamento em Desastres/organização & administração , Medicina de Emergência/educação , Humanos , Liderança , Pessoa de Meia-Idade , Papel do Médico , Especialidades Cirúrgicas/educação , Inquéritos e Questionários
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