Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 3 de 3
Filtrar
Mais filtros

Base de dados
Tipo de documento
Intervalo de ano de publicação
1.
Ann Emerg Med ; 2024 Jan 17.
Artigo em Inglês | MEDLINE | ID: mdl-38244027

RESUMO

Emergency physicians are expected to learn and maintain a large and varied set of competencies for clinical practice. These include high acuity, low occurrence procedures that may not be encountered frequently in the clinical environment and are difficult to practice with high fidelity and frequency in a simulated environment. Mental practice is a form of a cognitive walk-through that has been shown to be an effective method for improving motor and cognitive skills, with literature in sports science and emerging evidence supporting its use in medicine. In this article, we review the literature on mental practice in sports and medicine as well as the underlying neuroscientific theories that support its use. We review best-known practices and provide a framework to design and use mental imagery scripts to augment learning and maintaining the competencies necessary for physicians at all levels of training and clinical environments in the practice of emergency medicine.

2.
J Cell Biochem ; 116(8): 1646-57, 2015 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-25754900

RESUMO

Reveromycin A (RM-A), a small natural product isolated from Streptomyces bacteria, is a potential osteoporosis therapeutic in that it specifically induces apoptosis in osteoclasts but not osteoblasts. The purpose of the study presented here was to further elucidate the intracellular mechanisms of RM-A death effects in mature osteoclasts. A specific clone of RAW264.7 murine macrophages that was previously characterized for its ability to acquire an osteoclast nature on differentiation was differentiated in the presence of receptor activator of nuclear factor kappa B ligand (RANKL). Subsequent staining was performed for tartrate-resistant acid phosphatase to confirm their osteoclast character. These osteoclasts were treated with ten micromolar RM-A for 2, 4, 6, 24, and 48 h at a pH of 5.5. Peak apoptosis induction occurred at 4-6 h as measured by caspase 3 activity. Lactate dehydrogenase release assay revealed no significant RM-A-induced necrosis. Western blot analysis of cytoplasmic extracts demonstrated activation of caspase 9 (2.3-fold at 2 h and 2.6-fold at 4 h, each P < 0.05) and no significant changes in Bcl-XL . In nuclear extracts, NFκB levels significantly increased on differentiation with RANKL but then remained constant through RM-A treatment. Over the extended time course studied, RM-A-induced apoptosis in osteoclasts was not accompanied by necrosis, suggesting that RM-A would likely have limited effects on immediate, neighboring bone cell types. This specific cell death profile is promising for potential clinical investigations of RM-A as a bone antiresorptive.


Assuntos
Macrófagos/fisiologia , Osteoclastos/efeitos dos fármacos , Piranos/farmacologia , Ligante RANK/farmacologia , Compostos de Espiro/farmacologia , Animais , Apoptose , Caspase 3/metabolismo , Caspase 9/metabolismo , Diferenciação Celular , Linhagem Celular , Regulação da Expressão Gênica/efeitos dos fármacos , Camundongos , Necrose , Osteoclastos/metabolismo
3.
AEM Educ Train ; 1(3): 179-184, 2017 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-30051032

RESUMO

OBJECTIVE: The purpose of this study was to assess the relationship between emergency medicine (EM) resident and attending physician patient satisfaction scores. METHODS: We added four resident questions to the standard Press Ganey survey used at a large, urban, university hospital with a PGY-1 to -4 EM residency. The resident questions were identical to the traditional attending questions. Press Ganey distributed the modified survey to a random sample of 30% of discharged patients. We assessed the correlation between resident and attending top-box Press Ganey scores using Pearson's coefficients. Two-tailed two-sample comparisons of proportions were used to compare top-box responses between residents and attendings. RESULTS: From September 1, 2012, to August 31, 2015, a total of 66,216 patients received surveys, and 7,968 responded, resulting in a 12.03% response rate, similar to Press Ganey survey response rate at comparable peer institutions. Patients were able to discriminate between residents and attendings; however, 751 surveys did not contain responses for residents, resulting in a total number of 6,957. All 64 of the EM residents had a minimum of 5 or more surveys returned. There was a high degree of correlation between resident and attending top-box scores with correlation coefficients ranging from 0.75 to 0.80. However, the proportion of top-box scores was consistently higher for residents (p < 0.05). CONCLUSIONS: There is a high degree of correlation between resident and attending top-box scores on Press Ganey surveys, with residents scoring slightly higher than attendings. The addition of resident questions to the standard Press Ganey survey does not appear to decrease overall attending scores.

SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA