RESUMEN
BACKGROUND: Physicians report discomfort when interacting with patients with disabilities, which can negatively impact the quality of healthcare they provide. OBJECTIVE/HYPOTHESIS: An intervention structured around a formative clinical encounter was assessed for its effectiveness in changing comfort towards treating patients with disabilities. It was predicted that this encounter would have a positive short- and long-term impact on medical students. METHOD: During the 2017-2018 academic year, 169 third-year medical students conducted a patient encounter with a person who had a disability. Students met individually with the "patient" and completed a brief social and medical history as if they were meeting a new patient to establish care. A measure of perceived comfort caring for patients with disabilities was administered to students before and after the encounter. One year after the patient encounter, 59 students were surveyed about their satisfaction and the impact of the patient encounter. RESULTS: The impact of encountering people with disabilities in a clinical setting was positive, with statistically significant improvements across all items on the measure of perceived comfort. Students were highly satisfied with the experience and anticipated feeling more confident, more comfortable, less awkward, and more skilled and efficacious when encountering a person with a disability in their future practice. A thematic analysis of the one year follow-up data suggest that students valued the encounter and desired more content on disability throughout their education. CONCLUSIONS: Medical education should include dedicated exposure to persons with disabilities and a simulated patient experience allowing for a safe environment to gain skills and confidence.
Asunto(s)
Personas con Discapacidad , Educación Médica , Estudiantes de Medicina , Actitud del Personal de Salud , Humanos , Encuestas y CuestionariosRESUMEN
PROBLEM: Faculty coaching is recognized as an essential element for effective use of portfolios in undergraduate medical education, yet best practices for training these coaches are uncertain. INTERVENTION: New portfolio coaches participated in a multifaceted training program that included orienting modules, a 7.5-hr training workshop featuring analysis of reflective writing, an Observed Structured Teaching Exercise (OSTE), and subsequent longitudinal coaches' meetings for timely task training. Four desired coaching skills were emphasized in the initial training: creating a safe environment, explicitly using performance data, asking questions that elicit reflection, and guiding the student to develop future goals and plans. We collected and analyzed several outcomes: (a) coaches' self-assessment at key intervals, (b) open-ended written responses to three coaching vignettes, (c) video recordings of the OSTE, and (d) subsequent student evaluation of the coach. In an attempt to capture learning from the workshop, both the responses to written vignettes and the video-recorded encounters were coded for presence or absence of the four desired skills. CONTEXT: Our portfolio and coaching program was instituted as part of a major undergraduate medical education reform. A new cohort of 25 coaches is enrolled with each matriculating student class, and each coach is assigned to work individually with 8-10 students, forming a coaching relationship that continues over 4 years. Coaches are compensated at 5% full-time equivalent. OUTCOME: On coach self-assessment, the majority of coaches reported significant improvement in their perceived ability to assess a student's level of reflection, enhance reflection, use performance data, and guide a student to develop goals and plans. After two semesters, coach perception of improved abilities persisted. Students rated coaches as excellent (82%), reporting that coaches created safe environments (99%), promoted insight (92%), and aided in goal setting (97%). Written responses to vignettes before the OSTE found that several coaches omitted desired behaviors; however, posttraining responses showed no discernable pattern of learning. Coding of the OSTE, in contrast, documented that all coaches demonstrated all four of the desired skills. LESSONS LEARNED: Although coaches reported learning related to key skills, learning was not apparent when responses to written vignettes were examined. In contrast, skills were demonstrated in the OSTE, perhaps due to the added structured tasks as well as anticipation of feedback. In conclusion, this portfolio coach training program achieved its desired aim of providing students with portfolio coaches who demonstrated the desired skills, as reported by both coaches and students.
Asunto(s)
Docentes , Tutoría , Desarrollo de Personal/métodos , Femenino , Humanos , Masculino , Ohio , Facultades de Medicina , Autoinforme , Autoevaluación (Psicología) , Encuestas y CuestionariosRESUMEN
The deformation and fragmentation of liquid metal microdroplets by intense subpicosecond Ti:sapphire laser pulses is experimentally studied with stroboscopic shadow photography. The experiments are performed at a peak intensity of 10^{14}W/cm^{2} at the target's surface, which produces shock waves with pressures in the Mbar range. As a result of such a strong impact, the droplet is transformed into a complex-shaped hollow structure that undergoes asymmetrical expansion and eventually fragments. The hollow structure of the expanding target is explained by the effects of cavitation and spallation that follow the propagation of the laser-induced shock wave.
RESUMEN
Efforts to understand spinal cord injury (SCI) and other complex neurotrauma disorders at the pre-clinical level have shown progress in recent years. However, successful translation of basic research into clinical practice has been slow, partly because of the large, heterogeneous data sets involved. In this sense, translational neurological research represents a "big data" problem. In an effort to expedite translation of pre-clinical knowledge into standards of patient care for SCI, we describe the development of a novel database for translational neurotrauma research known as Visualized Syndromic Information and Outcomes for Neurotrauma-SCI (VISION-SCI). We present demographics, descriptive statistics, and translational syndromic outcomes derived from our ongoing efforts to build a multi-center, multi-species pre-clinical database for SCI models. We leveraged archived surgical records, postoperative care logs, behavioral outcome measures, and histopathology from approximately 3000 mice, rats, and monkeys from pre-clinical SCI studies published between 1993 and 2013. The majority of animals in the database have measures collected for health monitoring, such as weight loss/gain, heart rate, blood pressure, postoperative monitoring of bladder function and drug/fluid administration, behavioral outcome measures of locomotion, and tissue sparing postmortem. Attempts to align these variables with currently accepted common data elements highlighted the need for more translational outcomes to be identified as clinical endpoints for therapeutic testing. Last, we use syndromic analysis to identify conserved biological mechanisms of recovery after cervical SCI between rats and monkeys that will allow for more-efficient testing of therapeutics that will need to be translated toward future clinical trials.
Asunto(s)
Bases de Datos Factuales , Traumatismos de la Médula Espinal/fisiopatología , Investigación Biomédica Traslacional , Animales , Biología Computacional , Haplorrinos , Ratones , Modelos Animales , RatasRESUMEN
Peroxisome Proliferator Activated Receptor (PPAR)-α is a key regulator of lipid metabolism and recent studies reveal it also regulates inflammation in several different disease models. Gemfibrozil, an agonist of PPAR-α, is a FDA approved drug for hyperlipidemia and has been shown to inhibit clinical signs in a rodent model of multiple sclerosis. Since many studies have shown improved outcome from spinal cord injury (SCI) by anti-inflammatory and neuroprotective agents, we tested the efficacy of oral gemfibrozil given before or after SCI for promoting tissue preservation and behavioral recovery after spinal contusion injury in mice. Unfortunately, the results were contrary to our hypothesis; in our first attempt, gemfibrozil treatment exacerbated locomotor deficits and increased tissue pathology after SCI. In subsequent experiments, the behavioral effects were not replicated but histological outcomes again were worse. We also tested the efficacy of a different PPAR-α agonist, fenofibrate, which also modulates immune responses and is beneficial in several neurodegenerative disease models. Fenofibrate treatment did not improve recovery, although there was a slight trend for a modest increase in histological tissue sparing. Based on our results, we conclude that PPAR-α agonists yield either no effect or worsen recovery from spinal cord injury, at least at the doses and the time points of drug delivery tested here. Further, patients sustaining spinal cord injury while taking gemfibrozil might be prone to exacerbated tissue damage.
Asunto(s)
Gemfibrozilo/farmacología , PPAR alfa/agonistas , Traumatismos de la Médula Espinal/tratamiento farmacológico , Animales , Relación Dosis-Respuesta a Droga , Femenino , Fenofibrato/farmacología , Gemfibrozilo/toxicidad , Hipolipemiantes/farmacología , Hipolipemiantes/toxicidad , Macrófagos/patología , Ratones , Ratones Endogámicos C57BL , Actividad Motora/efectos de los fármacos , Mielitis/tratamiento farmacológico , Mielitis/inmunología , Mielitis/patología , Fibras Nerviosas Mielínicas/efectos de los fármacos , Fibras Nerviosas Mielínicas/patología , Recuperación de la Función/efectos de los fármacos , Médula Espinal/efectos de los fármacos , Médula Espinal/patología , Traumatismos de la Médula Espinal/inmunología , Traumatismos de la Médula Espinal/patología , Linfocitos T/patología , Insuficiencia del TratamientoRESUMEN
Traumatic spinal cord injury (SCI) is accompanied by a dramatic inflammatory response, which escalates over the first week post-injury and is thought to contribute to secondary pathology after SCI. Peroxisome proliferator-activated receptors (PPAR) are widely expressed nuclear receptors whose activation has led to diminished pro-inflammatory cascades in several CNS disorders. Therefore, we examined the efficacy of the PPARgamma agonist Pioglitazone in a rodent SCI model. Rats received a moderate mid-thoracic contusion and were randomly placed into groups receiving vehicle, low dose or high dose Pioglitazone. Drug or vehicle was injected i.p. at 15 min post-injury and then every 12 h for the first 7 days post-injury. Locomotor function was followed for 5 weeks using the BBB scale. BBB scores were greater in treated animals at 7 days post-injury and significant improvements in BBB subscores were noted, including better toe clearance, earlier stepping and more parallel paw position. Stereological measurements throughout the lesion revealed a significant increase in rostral spared white matter in both Pioglitazone treatment groups. Spinal cords from the high dose group also had significantly more gray matter sparing and motor neurons rostral and caudal to epicenter. Thus, our results reveal that clinical treatment with Pioglitazone, an FDA-approved drug used currently for diabetes, may be a feasible and promising strategy for promoting anatomical and functional repair after SCI.
Asunto(s)
Hipoglucemiantes/uso terapéutico , Locomoción/fisiología , PPAR gamma/agonistas , Traumatismos de la Médula Espinal/tratamiento farmacológico , Traumatismos de la Médula Espinal/patología , Tiazolidinedionas/uso terapéutico , Animales , Apoptosis/efectos de los fármacos , Barrera Hematoencefálica/fisiología , Antígeno CD11b/metabolismo , Caspasa 3/metabolismo , Recuento de Células , Femenino , Inmunohistoquímica , Laminectomía , Locomoción/efectos de los fármacos , Macrófagos/efectos de los fármacos , Neuronas Motoras/fisiología , Pioglitazona , Ratas , Ratas Sprague-Dawley , Médula Espinal/patología , Traumatismos de la Médula Espinal/fisiopatologíaRESUMEN
Sjögren's syndrome (SS) is the most common autoimmune disorder among women. Symptoms occur when the infiltration of immune cells into the salivary and lacrimal glands causes a progressive decline in sight, smell, and taste. Although symptoms seriously disrupt quality of life, the disease's vague manifestations usually prevent individuals from seeking immediate help. By the time a diagnosis is rendered, significant systemic organ involvement may have occurred. Although there is no cure, clinician understanding of the epidemiology, etiology, and pathophysiology of SS enhances its symptomatic management in primary care settings.
Asunto(s)
Síndrome de Sjögren/enfermería , Humanos , Síndrome de Sjögren/diagnóstico , Síndrome de Sjögren/terapiaRESUMEN
In addition to maintaining the GenBank nucleic acid sequence database, the National Center for Biotechnology Information (NCBI) provides data analysis and retrieval resources that operate on the data in GenBank and a variety of other biological data made available through NCBI's Web site. NCBI data retrieval resources include Entrez, PubMed, LocusLink and the Taxonomy Browser. Data analysis resources include BLAST, Electronic PCR, OrfFinder, RefSeq, UniGene, HomoloGene, Database of Single Nucleotide Polymorphisms (dbSNP), Human Genome Sequencing, Human MapViewer, GeneMap'99, Human-Mouse Homology Map, Cancer Chromosome Aberration Project (CCAP), Entrez Genomes, Clusters of Orthologous Groups (COGs) database, Retroviral Genotyping Tools, Cancer Genome Anatomy Project (CGAP), SAGEmap, Gene Expression Omnibus (GEO), Online Mendelian Inheri-tance in Man (OMIM), the Molecular Modeling Database (MMDB) and the Conserved Domain Database (CDD). Augmenting many of the Web applications are custom implementations of the BLAST program optimized to search specialized data sets. All of the resources can be accessed through the NCBI home page at: http://www.ncbi.nlm.nih. gov.
Asunto(s)
Biotecnología , Bases de Datos Factuales , Servicios de Información , Animales , Perfilación de la Expresión Génica , Genoma , Genoma Humano , Humanos , Almacenamiento y Recuperación de la Información , Internet , Biología Molecular , National Institutes of Health (U.S.) , National Library of Medicine (U.S.) , Fenotipo , Alineación de Secuencia , Estados UnidosAsunto(s)
Aborto Espontáneo/etiología , Síndrome Antifosfolípido/diagnóstico , Síndrome Antifosfolípido/terapia , Complicaciones del Embarazo/diagnóstico , Complicaciones del Embarazo/terapia , Atención Primaria de Salud/métodos , Aborto Espontáneo/prevención & control , Síndrome Antifosfolípido/complicaciones , Síndrome Antifosfolípido/epidemiología , Femenino , Humanos , Enfermeras Practicantes , Embarazo , Complicaciones del Embarazo/epidemiología , Factores de Riesgo , Pruebas Serológicas/métodos , Factores de TiempoRESUMEN
OBJECTIVE: The goal of expanding access to individuals with disabilities to scientific and medical conferences is supported by both the Americans with Disabilities Act and the National Institutes of Health. DESIGN: Live-streaming video broadcast over the internet is widely available, although it has been used only in a limited fashion by the medical community. A consumer-oriented medical and rehabilitation conference concerning the rare disabling disease, fibrodysplasia ossificans progressiva, was broadcast via the world wide web. The address of a web page was announced before the conference to three computer users' groups that were considered likely to have an interest in the conference. The web page presented a live-streaming video broadcast of the conference. A phone line was installed, thereby allowing viewers to ask questions of the presenters during the question and answer periods. RESULTS: Sixteen users logged in 83 times to view the conference over a 2-day period. Five (23%) of 22 members of a fibrodysplasia ossificans progressiva internet users' group tuned in from distant places as The Netherlands and Israel. CONCLUSIONS: The internet is a viable tool to expand access to and increase the participation of individuals with disabilities in scientific and medical conferences. This technology should be used routinely in conferences of interest.
Asunto(s)
Congresos como Asunto , Personas con Discapacidad , Internet , Miositis Osificante/rehabilitación , Humanos , Telecomunicaciones/instrumentación , Estados UnidosRESUMEN
We have constructed a public gene expression data repository and online data access and analysis, WWW and FTP sites for serial analysis of gene expression (SAGE) data. The WWW and FTP components of this resource, SAGEmap, are located at http://www.ncbi.nlm.nih. gov/sage and ftp://ncbi.nlm.nih.gov/pub/sage, respectively. We herein describe SAGE data submission procedures, the construction and characteristics of SAGE tags to gene assignments, the derivation and use of a novel statistical test designed specifically for differential-type analyses of SAGE data, and the organization and use of this resource.
Asunto(s)
Bases de Datos Factuales , Expresión Génica/genética , Internet , Femenino , Biblioteca de Genes , Humanos , Masculino , Análisis de Secuencia de ADN/métodos , Lugares Marcados de Secuencia , Procesamiento de Señales Asistido por ComputadorAsunto(s)
Análisis Citogenético , Genoma Humano , Proyecto Genoma Humano , Mapeo Físico de Cromosoma/métodos , Cromosomas Bacterianos/genética , Cromosomas Humanos Par 22/genética , Cromosomas Humanos Par 7/genética , Clonación Molecular , Mapeo Contig , Humanos , Hibridación Fluorescente in Situ , Lugares Marcados de SecuenciaAsunto(s)
Perfilación de la Expresión Génica/métodos , Neoplasias de la Próstata/genética , Bases de Datos Factuales , Expresión Génica , Perfilación de la Expresión Génica/estadística & datos numéricos , Biblioteca de Genes , Humanos , Masculino , Análisis de Secuencia por Matrices de Oligonucleótidos , Patología Clínica/métodos , Polimorfismo de Nucleótido SimpleRESUMEN
PURPOSE: To explore the international activities of American nursing scholars from 1985 to 1995, as indicated by their international teaching, scholarship, and consultation. METHODS: All faculty (N = 2,254) teaching in nursing doctoral programs in the United States were surveyed using an investigator-designed questionnaire. The professional characteristics of American nursing scholars who worked abroad and the dates, nature, and types of international activities they undertook were ascertained. From a total of 928 usable returns, 247 described international activity. FINDINGS: Data indicated a three-fold increase in international activity from 1985 to 1995 in the three major areas investigated. Universities in Western Europe and Asia were the most frequent recipients of nursing scholarly activity. The scholars or representatives of the host institutions made approximately half the initial contacts. The international hosts or U.S. universities were the predominant providers of funding. Nurses most likely to participate in international scholarly activity were senior faculty who were full professors in doctoral-granting institutions, published in international journals, presented educational topics, and were recognized by peers through membership in honorary organizations. CONCLUSIONS: A substantial increase in international nursing scholarship occurred during the decade studied, particularly related to teaching.
Asunto(s)
Docentes de Enfermería/estadística & datos numéricos , Intercambio Educacional Internacional , Femenino , Humanos , Masculino , Encuestas y Cuestionarios , Estados Unidos/epidemiologíaRESUMEN
In addition to maintaining the GenBank(R) nucleic acid sequence database, the National Center for Biotechnology Information (NCBI) provides data analysis and retrieval and resources that operate on the data in GenBank and a variety of other biological data made available through NCBI's Web site. NCBI data retrieval resources include Entrez, PubMed, LocusLink and the Taxonomy Browser. Data analysis resources include BLAST, Electronic PCR, OrfFinder, RefSeq, UniGene, Database of Single Nucleotide Polymorphisms (dbSNP), Human Genome Sequencing pages, GeneMap'99, Davis Human-Mouse Homology Map, Cancer Chromosome Aberration Project (CCAP) pages, Entrez Genomes, Clusters of Orthologous Groups (COGs) database, Retroviral Genotyping Tools, Cancer Genome Anatomy Project (CGAP) pages, SAGEmap, Online Mendelian Inheritance in Man (OMIM) and the Molecular Modeling Database (MMDB). Augmenting many of the Web applications are custom implementations of the BLAST program optimized to search specialized data sets. All of the resources can be accessed through the NCBI home page at: http://www.ncbi.nlm.nih. gov
Asunto(s)
Biología , Bases de Datos Factuales , Animales , Expresión Génica , Genoma Humano , Humanos , Almacenamiento y Recuperación de la Información , Ratones , Modelos Moleculares , National Library of Medicine (U.S.) , Neoplasias/genética , Fenotipo , Estados UnidosRESUMEN
A public database, SAGEmap, was created as a component of the Cancer Genome Anatomy Project to provide a central location for depositing, retrieving, and analyzing human gene expression data. This database uses serial analysis of gene expression to quantify transcript levels in both malignant and normal human tissues. By accessing SAGEmap (http://www.ncbi.nlm.nih.gov/SAGE) the user can compare transcript populations between any of the posted libraries. As an initial demonstration of the database's utility, gene expression in human glioblastomas was compared with that of normal brain white matter. Of the 47,174 unique transcripts expressed in these two tissues, 471 (1.0%) were differentially expressed by more than 5-fold (P<0.001). Classification of these genes revealed functions consistent with the biological properties of glioblastomas, in particular: angiogenesis, transcription, and cell cycle related genes.
Asunto(s)
Bases de Datos Factuales , Expresión Génica , Neoplasias/genética , Encéfalo/metabolismo , Clonación Molecular , Glioblastoma/genética , Humanos , Internet , Modelos Teóricos , ARN Mensajero/análisis , Reacción en Cadena de la Polimerasa de Transcriptasa Inversa , Distribución TisularRESUMEN
Fibrodysplasia ossificans progressiva (FOP) is a very rare genetic disorder that is characterized by progressive heterotopic ossification of soft tissues and congenital malformation of the great toes. Although previous case studies have reported hearing loss in individuals with FOP, there have been no large-scale studies regarding the nature or cause of the hearing loss. Here, we report the findings of a two-part study. In Part I, we report the findings of a postal survey regarding hearing loss that was sent to 102 individuals with FOP. In Part II, we report the findings of on-site hearing evaluations of eight individuals with FOP. The findings of both studies indicate that individuals with FOP are at risk for hearing loss and that the type of loss is predominantly conductive in nature, similar to that seen in individuals who have otosclerosis.
Asunto(s)
Pérdida Auditiva Conductiva/diagnóstico , Pérdida Auditiva Conductiva/etiología , Miositis Osificante/complicaciones , Adolescente , Adulto , Audiometría de Tonos Puros , Niño , Preescolar , Femenino , Humanos , Lactante , Masculino , Persona de Mediana Edad , Índice de Severidad de la Enfermedad , Encuestas y CuestionariosRESUMEN
We reported previously that the addition of recombinant Escherichia coli human granulocyte-macrophage colony stimulating factor (GM-CSF) to a 5-fluorouracil (5-FU) and leucovorin (LV) regimen seemed to ameliorate diarrhea and permit increased 5-FU dose intensity (J. L. Grem et al., J. Clin. Oncol., 12: 560-568, 1994). We then tested the effect of GM-CSF given with a more toxic regimen of 5-FU/LV/IFN-alpha (IFN alpha-2a). Thirty-one patients with a good performance status and no prior chemotherapy for systemic disease received IFN alpha(-2a (5 MU/m2 s.c., days 1-7), 5-FU (370 mg/m2 i.v., days 2-6), LV (500 mg/m2 i.v., days 2-6), and GM-CSF (Saccharomyces cerevisiae 250 microg/m2 s.c., days 7-18) every 3 weeks. Toxicities and 5-FU dose intensity were compared with that observed in our prior Phase II trial with 5-FU/LV/IFN alpha-2a (J. L. Grem et al., J. Clin. Oncol., 11: 1737-1745, 1993). In comparison with the prior Phase II study, the WBC and granulocyte nadirs in the present trial were significantly higher. When trends in toxicity grades for all cycles were compared, stratifying for 5-FU dose, the incidence and severity of mucositis, skin rash, WBC toxicity, and granulocyte toxicity were significantly lower in the present trial, whereas nausea/vomiting and fatigue were significantly worse. The delivered 5-FU dose intensity for all cycles of therapy appeared to be significantly higher in the present trial. Six of 28 evaluable patients had a partial response (21.4%), and 13 (46%) had stable disease for > or =12 weeks. Despite treatment-related toxicity, patient quality of life did not worsen during the study. No correlation was observed between thymidylate synthase content in primary tumor specimens and response, time to treatment failure, or survival. The addition of GM-CSF appeared to decrease the severity of leukopenia, granulocytopenia, mucositis, and skin rash when compared with our prior experience with this regimen of 5-FU/LV/IFN alpha-2a, at the cost of greater nausea/vomiting and fatigue. The potential impact of increased 5-FU dose intensity on clinical response, however, remains to be determined.