Publications by authors named "M K York"

Despite the efficacy of the COVID-19 vaccine in reducing mortality and illness severity, racial inequities in vaccination uptake persist. Among individuals with rheumatologic conditions who are often immunocompromised, the impact of disparities in preventive care threatens to widen existing inequities in adverse outcomes related to COVID-19 infection. There exists an urgent need to develop interventions that reduce COVID-19 vaccine hesitancy and promote vaccine uptake.

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Article Synopsis
  • Cognitive impairment is prevalent in Parkinson's disease (PD), but there's no agreement on the best neuropsychological tests to assess it; a Cognitive Summary Score (CSS) combines various tests into a single score for easier interpretation.
  • This study aimed to see if a CSS, developed using strong norming methods, could identify early cognitive issues in untreated PD patients.
  • Results show that PD patients performed worse than healthy controls across cognitive tests, especially in processing speed and verbal memory, and the CSS provided a more sensitive measure of cognitive decline than individual tests.
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Objectives: To determine the impact of dopamine deficiency and isolated REM sleep behavior disorder (iRBD) on cognitive performance in early neuronal alpha-synuclein disease (NSD) with hyposmia.

Methods: Using Parkinson's Progression Markers Initiative baseline data, cognitive performance was assessed with a cognitive summary score (CSS) developed by applying regression-based internal norms derived from a robust healthy control (HC) group. Performance was examined for participants with hyposmia classified as NSD-Integrated Staging System (NSD-ISS) Stage 2, either Stage 2A (CSF alpha-synuclein seed amplification assay [SAA]+, SPECT dopamine transporter scan [DaTscan]-) or 2B (SAA+, DaTscan+).

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Background: Whereas restoration of fecal consistency after treatment with clioquinol for chronic diarrhea and free fecal water syndrome has been attributed to its antiprotozoal properties, actions of clioquinol on the colonic bacterial microbiota have not been investigated.

Objectives: Characterize the dynamics of fecal microbial diversity before, during, and after PO administration of clioquinol to healthy horses.

Study Design: Experimental prospective cohort study using a single horse group.

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Standard chow diets influence reproducibility in animal model experiments because chows have different nutrient compositions, which can independently influence phenotypes. However, there is little evidence of the role of timing in the extent of variability caused by chow exposure. Here we measured the impact of different diets (5V5M, 5V0G, 2920X and 5058) and timing of exposure (adult exposure (AE), lifetime exposure (LE) and developmental exposure (DE)) on growth and development, metabolic health indicators and gut bacterial microbiota profiles across genetically identical C57BL/6J mice.

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