Better understanding of these mechanisms could provide insight to development selleckchem of novel therapeutic strategies for treatment of diabetes as well as refinement of surgical techniques.”
“Objectives
Script concordance tests (SCTs) can be used to assess clinical reasoning, especially in situations of uncertainty, by comparing the responses of examinees with those of emergency physicians. The examinee’s answers are scored based on the level of agreement with responses provided by a panel of experts. Emergency physicians are frequently uncertain in the interpretation of ECGs. Thus, the aim of this study was to validate an SCT combined with an ECG. Methods An SCT-ECG was developed. The test was administered to medical students, residents and emergency physicians. Scoring was based
on data from a panel of 12 emergency physicians. The statistical analyses assessed the internal reliability of the SCT (Cronbach’s alpha) and its ability to discriminate between the different groups (ANOVA followed by Tukey’s post hoc test). Results The SCT-ECG was administered to 21 medical MCC950 concentration students, 19 residents and 12 emergency physicians. The internal reliability was satisfactory (Cronbach’s alpha=0.80). Statistically significant differences were found between the groups (F-0.271=21.07; p smaller than 0.0001). Moreover, significant differences (post hoc test) were detected between students and residents (p smaller than 0.001),
students and experts (p smaller than 0.001), and residents Apoptosis inhibitor and experts (p=0.017). Conclusions This SCT-ECG is a valid tool to assess clinical reasoning in a context of uncertainty due to its high internal reliability and its ability to discriminate between different levels of expertise.”
“Human Immunodeficiency Virus type 1 (HIV-1) is a retrovirus that causes acquired immunodeficiency syndrome (AIDS). HIV-1 Tat protein upregulates transcriptional transactivation. The nucleocapsid protein NC of HIV-1 is a component of virion and plays a key role in genome packaging. Herein, we have demonstrated the interaction between NC and Tat by means of a yeast two-hybrid assay, GST pull-down analysis, co-immunoprecipitation and subcellular colocalization analysis. We observed that the level of Tat was significantly reduced in the presence of NC. But NC did not affect mRNA expression level of Tat. The level of Tat in the presence of NC was increased by treating cells with a proteasome inhibitor, MG132. The ubiquitination state of Tat was not seen to increase in the presence of NC, suggesting the proteasomal degradation was independent of ubiquitination. Lowered level of Tat in the presence of NC led to a decrease in Tat-mediated transcriptional transactivation.