Publications by authors named "Jessica Byrd"

Article Synopsis
  • Patients with heart failure with reduced ejection fraction (HFrEF) show sustained limitations in their exercise capacity even after receiving a continuous-flow left ventricular assist device (CF-LVAD).
  • The study monitored ten patients' hemodynamics and functional capacity through a series of cardiopulmonary exercise tests before and after CF-LVAD implantation to assess changes with different pump speeds.
  • Results indicated no significant improvement in maximal oxygen uptake or cardiovascular measurements following implantation, suggesting the need for further research on enhancing exercise capacity in HFrEF patients post-device insertion.
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 is a gram-positive coccus that has been found in various aquatic and terrestrial animals, as well as in dairy products, and is considered a potential zoonotic bacterium. The pathogen has been recognized as an emerging opportunistic human pathogen, often associated with the ingestion of raw seafood. The most common presentation of  infection in humans is infective endocarditis, but it has also been found to have associations with other clinical manifestations.

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Approximately 6 million individuals have heart failure in the United States alone and 15 million in Europe. Left ventricular assist devices (LVAD) improve survival in these patients, but functional capacity may not fully improve. This article examines the hypothesis that patients supported by LVAD experience persistent reductions in functional capacity and explores mechanisms accounting for abnormalities in exercise tolerance.

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Continuous-flow left ventricular assist devices are frequently used for management of patients with advanced heart failure with reduced ejection fraction. Although technologic advancements have contributed to improved outcomes, several complications arise over time. These complications result from several factors, including medication effects, physiologic responses to chronic exposure to circulatory support that is minimally/entirely nonpulsatile, and dysfunction of the device itself.

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Cognitive remediation is aimed at reducing cognitive impairments in severe mental illnesses such as schizophrenia, but little is known about whether severity of cognitive impairment predicts benefit from this intervention. To address this question, this study aggregated data from five randomized controlled trials (N = 300) of a standardized comprehensive, multimodal outpatient cognitive remediation program, the Thinking Skills for Work program, and evaluated whether baseline level of cognitive impairment differentially predicted improvement in cognitive functioning following cognitive remediation vs. usual services.

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The spectroscopic and electrochemiluminescence (ECL) properties of dipicolinic acid (DPA), (bpy)(2)Ru(2+) (bpy = 2,2'-bipyridine) and the species formed when DPA and (bpy)(2)Ru(2+) [abbreviated to (bpy)(2)Ru(DPA)(+)] are allowed to react are reported. The UV-Vis absorption maxima for (bpy)(2)Ru(2+) and (bpy)(2)Ru(DPA)(+) are 493 and 475 nm, respectively, indicating the in situ formation of a complex between DPA and (bpy)(2)Ru(2+). DPA, (bpy)(2)Ru(2+) and (bpy)(2)Ru(DPA)(+) display ECL upon oxidation in the presence of the oxidative-reductive co-reactant tri-n-propylamine (TPrA).

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