Publications by authors named "Colleen Russell"

Humanizing healthcare experiences is imperative for global healthcare organizations, emphasizing connections, empathy, and trust between patients, providers, and the broader community. Patients seek personalized, compassionate care, while employees prioritize supportive workplaces. Modernized feedback programs recognize consumer preferences for convenience and accessibility, leveraging technology like artificial intelligence (AI) for real-time insights.

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The DIA Study Endpoints Community Working Group on Mobile Sensor Technology (MST) series addresses considerations that may be useful for selecting MST for use in a clinical trial. This article describes considerations regarding the selection of MST for clinical trials including expectations around technology specifications, verification (bench testing), regulatory clearance and certification status. We identify useful statistical methods needed to establish agreement of the MST with respect to a clinical 'gold' standard technology in terms of accuracy and precision, and to combine data across trials, data types or device versions.

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Background: The use of mobile technologies for data capture and transmission has the potential to streamline clinical trials, but researchers lack methods for collecting, processing, and interpreting data from these tools.

Objectives: To assess the performance of a technical platform for collecting and transmitting data from six mobile technologies in the clinic and at home, to apply methods for comparing them to clinical standard devices, and to measure their usability, including how willing subjects were to use them on a regular basis.

Methods: In part 1 of the study, conducted over 3 weeks in the clinic, we tested two device pairs (mobile vs.

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Background And Purpose: One class of poststroke restorative therapy focuses on promoting axon outgrowth by blocking myelin-based inhibitory proteins such as myelin-associated glycoprotein. The purpose of the current study was to extend preclinical and clinical findings of GSK249320, a humanized monoclonal antibody to myelin-associated glycoprotein with disabled Fc region, to explore effects on motor outcomes poststroke.

Methods: In this phase IIb double-blind, randomized, placebo-controlled study, patients at 30 centers with ischemic stroke 24 to 72 hours prior and gait deficits were randomized to 2 IV infusions of GSK249320 or placebo.

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Investigations of intermanual transfer of learning have demonstrated that individuals can transfer acquired motor skills from one hand to the other. The purpose of the current study was to use fMRI to investigate the potential overlap of neural regions engaged during learning and at transfer of learning from the dominant arm to the non-dominant arm during sensorimotor adaptation. Participants performed a visuomotor adaptation joystick task where they adapted manual aiming movements to a 30 degrees rotation of the visual feedback display.

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Serum leptin levels are upregulated in proportion to body fat and also increase over the short term in response to meals or insulin. To understand the mechanisms involved, we assessed leptin synthesis and secretion in samples of adipose tissue from subjects with a wide range of BMI. Tissue leptin content and relative rates of leptin biosynthesis, as determined by metabolic labeling, were highly correlated with each other and with BMI and fat cell size.

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Context: Administration of glucocorticoids increases serum leptin levels in lean and obese individuals. A morning meal produces an increase in insulin, a cortisol peak, and an increase in leptin; these changes do not occur during fasting.

Objective: The objective of this study was to investigate whether inhibiting endogenous cortisol secretion with metyrapone decreases 24-h serum leptin levels and to determine whether a meal-related midmorning surge in cortisol is a prerequisite for the meal-entrained nocturnal rise in leptin.

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GHRP-2 is a synthetic agonist of ghrelin, the newly-discovered gut peptide which binds to the growth hormone (GH) secretagogue receptor. Ghrelin has two major effects, stimulating both GH secretion and appetite/meal initiation. GHRP-2 has been extensively studied for its utility as a growth hormone secretagogue (GHS).

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In vivo and in vitro studies indicate that beta-adrenergic receptor agonists decrease leptin release from fat cells in as little as 30 min. Our objective was to determine whether alterations in leptin biosynthesis or secretion were involved in the short-term adrenergic regulation of leptin in human and rat adipose tissue. Isoproterenol (Iso) decreased leptin release from incubated adipose tissue of both nonobese and obese subjects to similar extent (-28 vs.

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