Publications by authors named "Perry S"

Purpose: Swallowing difficulties have a substantial impact on the burden experienced by care partners of individuals with neurodegenerative disease. Given this, there is a clear need to easily identify and quantify the unique aspects of swallowing-related burden. The purpose of this study was to establish the validity and reliability of the Caregiver Analysis of Reported Experiences with Swallowing Disorders (CARES) screening tool in care partners of individuals with neurodegenerative disease.

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We know more about the costs of chronic stress than the benefits of the acute stress response-an adaptive response that buffers organisms from life-threatening challenges. As yet, no primate study has empirically identified how the stress response adaptively affects evolutionary fitness. Here, we take advantage of a natural experiment-an El Niño drought-that produced unprecedented mortality for wild white-faced capuchins.

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Purpose: In this study, we investigated the performance of deep learning (DL) models to differentiate between normal and glaucomatous visual fields (VFs) and classify glaucoma from early to the advanced stage to observe if the DL model can stage glaucoma as Mills criteria using only the pattern deviation (PD) plots. The DL model results were compared with a machine learning (ML) classifier trained on conventional VF parameters.

Methods: A total of 265 PD plots and 265 numerical datasets of Humphrey 24-2 VF images were collected from 119 normal and 146 glaucomatous eyes to train the DL models to classify the images into four groups: normal, early glaucoma, moderate glaucoma, and advanced glaucoma.

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Many superhero and villain stories include trauma, which could influence how the public perceives the impact of trauma in their own lives. Our aim was to assess whether total Adverse Childhood Experiences (ACEs) scores were associated with heroism or villainy among Marvel and DC Characters. We watched 33 films, with a total runtime of 77 hours and 5 minutes.

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Unlabelled: The tonsils have been identified as a site of replication for Epstein-Barr virus, adenovirus, human papillomavirus, and other respiratory viruses. Human tonsil epithelial cells (HTECs) are a heterogeneous group of actively differentiating cells. Here, we investigated the cellular features and susceptibility of differentiated HTECs to specific influenza viruses, including expression of avian-type and mammalian-type sialic acid (SA) receptors, viral replication dynamics, and the associated cytokine secretion profiles.

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This report documents complications in false pilchard Harengula clupeola and scad Decapterus macarellus associated with a salinomycin (60 mg kg-1) and amprolium (100 mg kg-1) gel feed treatment, along with prolonged temperature increase, for an Enteromyxum leei outbreak in a salt water, mixed species, public aquarium exhibit. Shortly after administration, a mass mortality event ensued where hundreds of false pilchards and a few scad died. Medicated gel feed was noted within the gastrointestinal tracts of all affected fish.

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X-ray crystallography is one of the leading tools to analyze the 3-D structure, and therefore, function of proteins and other biological macromolecules. Traditional methods of mounting individual crystals for X-ray diffraction analysis can be tedious and result in damage to fragile protein crystals. Furthermore, the advent of multi-crystal and serial crystallography methods explicitly require the mounting of larger numbers of crystals.

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This Letter presents complex coacervation between the biopolymer diethylaminoethyl dextran hydrochloride (DEAE-Dex) and carbon dots. The formation of these coacervates was dependent on both DEAE-Dex concentration and solution ionic strength. Fluorescence spectroscopy revealed that the blue fluorescence of the carbon dots was unaffected by coacervation.

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Background: Thiotepa-based autologous stem cell transplantation (ASCT) improves survival in primary central nervous system lymphoma (PCNSL), but > 30% of patients are unable to undergo ASCT following commonly used intensive induction regimens.

Methods: This retrospective population-based study included consecutive patients ≥ 18 years old with PCNSL who were intended for ASCT in Alberta, Canada between 2011 and 2022. A reduced-intensity induction protocol was further abbreviated in 2018 to decrease toxicity and expediate ASCT by incorporating rituximab, procarbazine, and only 2 doses of high-dose methotrexate and 1 cycle of high-dose cytarabine before consolidation with thiotepa-busulfan conditioning.

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  • Word identification accuracy is influenced by factors like word frequency, listening environments, and listener age, with younger and older adults showing different levels of performance, particularly in noisy settings.
  • This study investigates how both age groups perceive speech-in-noise, specifically focusing on medically related terms that vary in familiarity and frequency within simulated hospital noise, highlighting the challenges older adults face.
  • Findings revealed that older adults struggle more with low-familiarity medical words in hospital noise compared to younger adults, emphasizing the need for better communication strategies in healthcare settings.
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  • * Postmortem examinations showed that the manatee suffered from various health issues, including aortic stenosis, left ventricular hypertrophy, and a plastic bag lodged in its esophagus, alongside cold stress symptoms.
  • * Blood tests indicated systemic inflammation and potential coagulation problems, while heart-related findings included severe cardiac abnormalities; however, the exact cause of these cardiovascular issues remains undetermined.
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Background: While shared decision making is a cornerstone of orthopedic care, orthopedic surgeons face challenges in tailoring their advice and expectation management to individual shoulder arthroplasty patients due to the lack of systematically summarized evidence-based knowledge. This systematic review aims to provide an overview of current knowledge on independent predictive effects of patient-related factors on functional and pain-related outcomes after shoulder arthroplasty.

Methods: We included longitudinal cohort studies including patients receiving total or reverse shoulder arthroplasty or hemiarthroplasty for primary osteoarthritis or cuff tear arthropathy.

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Background: Oncofetal splice variants of extracellular matrix (ECM) proteins present a unique group of target antigens for the immunotherapy of pediatric cancers. However, limited data is available if these splice variants can be targeted with T cells expressing chimeric antigen receptors (CARs).

Methods: To determine the expression of the oncofetal version of tenascin C (TNC) encoding the C domain (C.

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Extended-duration human spaceflight necessitates a better understanding of the physiological impacts of microgravity. While the ground-based microgravity simulations identified low intensity vibration (LIV) as a possible countermeasure, how cells may respond to LIV under real microgravity remain unexplored. In this way, adaptation of LIV bioreactors for space remains limited, resulting in a significant gap in microgravity research.

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  • This study investigates the differences in cardiac strain between children with multisystem inflammatory syndrome (MIS-C) and a control group using advanced cardiac magnetic resonance imaging techniques.
  • The research involved a retrospective analysis of 32 MIS-C patients and 64 controls, examining cardiac function through automated strain measurements at different heart muscle layers.
  • Results indicated that there were no significant differences in overall cardiac strain or physical characteristics (such as age, height, and weight) between the two groups at medium-term follow-up after the diagnosis of MIS-C.
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Fine-wire electromyography (EMG) is a traditional laboratory technique to estimate muscle activity of the small foot muscles, however, recordings have not been reported from extensor hallucis brevis (EHB). As an extensor of the great toe, EHB is an important muscle when studying physiological changes associated with foot pathologies such as hallux valgus. The purpose of this study was to develop an ultrasound-guided fine-wire EMG protocol to record EHB muscle activity and report normative EMG profiles of healthy young adults during locomotion.

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  • Complementary healthcare in the UK is voluntarily regulated, but many practices are based on pseudoscience and may include misleading health claims.
  • An AI tool analyzed websites of 872 clinics registered under the Complementary and Natural Healthcare Council, finding that 704 (97%) contained false or misleading claims.
  • The AI's accuracy was comparable to human assessors, identifying nearly the same number of misleading claims while misidentifying fewer, suggesting that AI could enhance regulatory effectiveness.
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Our review, situated within the context of the United States, explores how societal forces shape youths' racial socialization processes. Specifically, we explore how youths learn beliefs about race through interactions with their environment, how these processes affect youths' engagement with race in multiple contexts, and how they contribute to the perpetuation and dismantling of racial inequality. First, we discuss key psychological theories that inform our understanding of racial socialization.

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The late embryogenesis abundant proteins (LEAPs) are a class of noncatalytic, intrinsically disordered proteins with a malleable structure. Some LEAPs exhibit a protein and/or membrane binding capacity and LEAP binding to various targets has been positively correlated with abiotic stress tolerance. Regarding the LEAPs' presumptive role in protein protection, identifying client proteins (CtPs) to which LEAPs bind is one practicable means of revealing the mechanism by which they exert their function.

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  • Excitotoxicity, linked to environmental factors and neuronal hyperexcitability, is a key mechanism in the neurodegeneration seen in ALS (amyotrophic lateral sclerosis).
  • Animal models and advances in induced pluripotent stem cell (iPSC) technologies have allowed researchers to study excitotoxic mechanisms in a more human-relevant context, facilitating the exploration of gene-environment interactions.
  • The review emphasizes the importance of understanding neurotransmitter receptor expressions in iPSC-derived neurons, as well as new methods for inducing and studying excitotoxicity to better grasp the pathological processes involved in ALS.
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  • Acute lymphoblastic leukemia (ALL) relies on interactions with non-cancerous bone marrow stromal cells for its survival, highlighting the importance of understanding this relationship for potential treatments.
  • The study investigated whether gap junctions—cellular channels that facilitate communication between cells—are essential for the survival of leukemia cells when in contact with stromal cells, using various experimental techniques.
  • Results indicated that intact gap junctions are crucial for leukemia cell survival; disruptions to these connections decreased their viability, suggesting that targeting gap junctions could be a new therapeutic strategy for treating ALL.*
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Tissue-specific gene knockout by CRISPR/Cas9 is a powerful approach for characterizing gene functions during development. However, this approach has not been successfully applied to most Drosophila tissues, including the Drosophila neuromuscular junction (NMJ). To expand tissue-specific CRISPR to this powerful model system, here we present a CRISPR-mediated tissue-restricted mutagenesis (CRISPR-TRiM) toolkit for knocking out genes in motoneurons, muscles, and glial cells.

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Synapses are endowed with the flexibility to change through experience, but must be sufficiently stable to last a lifetime. This tension is illustrated at the neuromuscular junction (NMJ), where two motor inputs that differ in structural and functional properties co-innervate most muscles to coordinate locomotion. To stabilize NMJ activity, motor neurons augment neurotransmitter release following diminished postsynaptic glutamate receptor functionality, termed presynaptic homeostatic potentiation (PHP).

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A fundamental requirement for all animals is to sense and respond to changes in environmental O availability. Low O (hypoxia) typically stimulates breathing, a universal and critical response termed the hypoxic ventilatory response (HVR). In this study, we test the hypothesis that taste-signaling pathways are used for O sensing and activation of the HVR.

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