Publications by authors named "Valerie Braz"

Background: To test if the 5-item compassion measure (a tool previously validated in the outpatient setting to measure patient assessment of clinician compassion) is a valid and reliable tool to quantify a distinct construct (i.e. clinical compassion) among patients evaluated in the emergency department (ED).

View Article and Find Full Text PDF

Study Objective: The objective of this pilot study is to assess the feasibility and necessity of performing a large-scale trial to measure the effect of intravenous fluid therapy on migraine headache pain.

Methods: This was a single-center, pilot randomized controlled trial. We randomized adult emergency department migraine headache patients to receive 1 L of normal saline solution during 1 hour (fluid group) or saline solution at 10 mL/hour for 1 hour (control group).

View Article and Find Full Text PDF

Background: Among older adults, malnutrition is common, often missed by healthcare providers, and influences recovery from illness or injury.

Objective: To identify modifiable risk factors associated with malnutrition in older patients.

Design: Prospective cross-sectional multicenter study.

View Article and Find Full Text PDF

Objectives: Previous studies have shown that a majority of patients cite altruistic motives, such as contributing to generalisable medical knowledge, as factors motivating clinical trial participation. We sought to examine the impact of making trial results publicly available on patients' willingness to participate in clinical research.

Design: Cross-sectional analysis using a questionnaire developed by a panel with expertise in publication bias, informed consent and survey design.

View Article and Find Full Text PDF

Objectives: To estimate the proportion of older adults in the emergency department (ED) who are willing and able to use a tablet computer to answer questions.

Design: Prospective, ED-based cross-sectional study.

Setting: Two U.

View Article and Find Full Text PDF

Objectives: Emergency departments (EDs) are an increasingly important site of care for older adults, but little is known about the priorities of emergency care in this population. We sought to describe and rank priorities of care among older adults receiving care in the ED.

Methods: We conducted a cross-sectional study of cognitively intact patients aged 65 years and older receiving care in two U.

View Article and Find Full Text PDF

Study Objective: Accurate information about the mobility of independently living older adults is essential in determining whether they may be safely discharged home from the emergency department (ED). We assess the accuracy of self-reported ability to complete a simple mobility task among older ED patients.

Methods: This was a cross-sectional study of cognitively intact patients aged 65 years and older who were neither nursing home residents nor critically ill, conducted in 2 academic EDs.

View Article and Find Full Text PDF

A direct alkylation of various heteroaryls using stoichiometric potassium alkyl- and alkoxymethyltrifluoroborates has been developed. This method leads to the synthesis of complex substituted heterocycles, which have been obtained with yields up to 89%.

View Article and Find Full Text PDF

Efavirenz (EFV) is a potent nonnucleoside reverse transcriptase inhibitor (NNRTI) used in the treatment of AIDS. NNRTIs bind in a hydrophobic pocket located in the p66 subunit of reverse transcriptase (RT), which is not present in crystal structures of RT without an inhibitor. Recent studies showed that monomeric forms of the p66 and p51 subunits bind efavirenz with micromolar affinity.

View Article and Find Full Text PDF

Efavirenz (EFV) is a nonnucleoside reverse transcriptase inhibitor (NNRTI) of HIV-1 reverse transcriptase (RT) used for the treatment of AIDS. RT is a heterodimer composed of p66 and p51 subunits; p51 is produced from p66 by C-terminal truncation by HIV protease. The monomers can form p66/p66 and p51/p51 homodimers as well as the p66/p51 heterodimer.

View Article and Find Full Text PDF

The biologically active form of HIV-1 reverse transcriptase (RT) is the p66/p51 heterodimer. The process of maturation of the heterodimer from precursor proteins is poorly understood. Previous studies indicated that association of p66 and p51 is very slow.

View Article and Find Full Text PDF

Native gel electrophoresis is used as a tool to assess structural differences in proteins. This article presents an application to separate oligomeric forms of proteins such as human immunodeficiency virus type 1 (HIV-1) reverse transcriptase monomers and homodimers. Technical difficulties encountered with various native gel techniques and ways to circumvent them are described.

View Article and Find Full Text PDF