Publications by authors named "NORTON W"

The usefulness of zebrafish for understanding the human nervous system is exemplified by the articles in part 1. The virtual special issue part 2 not only covers more work using this well-established species, but also highlights that other fish species may serve as alternative or more appropriate models, due to unique biological or evolutionary characteristics, to explore genetic and molecular mechanisms of neurological and psychiatric disorders.

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Background: As dissemination and implementation (D&I) research increases, we must continue to expand training capacity and research networks. Documenting, understanding, and enhancing advice networks identifies key connectors and areas where networks are less established. In 2012 Norton et al.

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  • Environmental factors, particularly environmental enrichment (EE), influence the development and severity of neuropsychiatric disorders, especially externalizing disorders that involve impulsive and aggressive behaviors.
  • The study focused on zebrafish with a gene linked to impulsivity and attention deficits (adgrl3.1), showing that those raised in enriched environments exhibited reduced anxiety and improved attention but continued to display impulsive behaviors.
  • These results indicate that while EE can help alleviate some symptoms associated with externalizing and internalizing disorders, impulsivity is more resistant to environmental modifications.
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Background: The American Council for Pharmacy Education outlines that pharmacists should be able to "recognize social determinants of health to diminish disparities and inequities in access to quality care." This randomized, cross-sectional study assessed students' knowledge and confidence in caring for patients with diverse religious backgrounds. Students were assigned to either a series of religious cases created in MyDispense or a control group to read a pamphlet on religious considerations in patient care.

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  • Externalizing disorders (EDs), marked by behaviors like aggression and hyperactivity, arise from complex gene-environment interactions, but the specifics are not fully understood.
  • Research using adgrl3.1 knockout zebrafish showed that social isolation worsens anxiety, abnormal behaviors, and memory issues, particularly in genetically predisposed individuals.
  • The study highlights the importance of considering both genetic and environmental factors in diagnosing and treating EDs, emphasizing the need for more integrated approaches.
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Data sharing, the act of making scientific research data available to others, can accelerate innovation and discoveries, and ultimately enhance public health. The National Cancer Institute Implementation Science Centers in Cancer Control convened a diverse group of research scientists, practitioners, and community partners in three interactive workshops (May-June 2022) to identify and discuss factors that must be considered when designing research for equitable data sharing with a specific emphasis on implementation science and social, behavioral, and population health research. This group identified and operationalized a set of seven key considerations for equitable data sharing-conceptualized as an inclusive process that fairly includes the perspectives and priorities of all partners involved in and impacted by data sharing, with consideration of ethics, history, and benefits-that were integrated into a framework.

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  • X-linked intellectual disability (XLID) is a genetic condition affecting primarily males, leading to cognitive and physical impairments and associated with genetic defects on the X chromosome.
  • Researchers identified specific genetic variants in the SRPK3 gene linked to XLID in nine patients and developed a zebrafish model to study SRPK3's function.
  • The study found that mutations in SRPK3 are tied to common symptoms seen in XLID, including intellectual disability and abnormal eye movement, emphasizing its critical role in neurodevelopmental disorders.
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  • - Antidepressants, particularly the tricyclic drug amitriptyline (AMI), are widely prescribed, raising concerns about their effects on non-target aquatic organisms like fish due to potential environmental exposure.
  • - A study using zebrafish revealed that AMI accumulates in their bodies, converts to an active metabolite, and impacts gene expression related to serotonin transport even at low, environmentally relevant concentrations.
  • - While higher concentrations of AMI affected fish behavior (like increased hatch rates and decreased movement), the overall low risk to fish populations may be underestimated due to factors like the ongoing increase in prescription rates and the presence of other drugs acting similarly.
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RBFOX1 is a highly pleiotropic gene that contributes to several psychiatric and neurodevelopmental disorders. Both rare and common variants in RBFOX1 have been associated with several psychiatric conditions, but the mechanisms underlying the pleiotropic effects of RBFOX1 are not yet understood. Here we found that, in zebrafish, rbfox1 is expressed in spinal cord, mid- and hindbrain during developmental stages.

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  • The optokinetic reflex (OKR) assays in zebrafish are useful for studying various eye and brain disorders, but there's a lack of standard reporting guidelines for these assays.
  • A systematic literature review of 109 research papers identified key factors like larval characteristics and stimulus parameters that should be included in future studies.
  • To improve research transparency and reliability, the authors developed the zebrafish optokinetic (ZOK) reflex minimal reporting guideline based on their findings.
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  • The optokinetic reflex (OKR) is crucial for assessing visual system development in infants and can be effectively studied using zebrafish larvae due to their rapid growth and suitability as a model organism.
  • This research introduces a new, portable OKR assay that utilizes the Samsung Galaxy Z Flip, contrasting it with a traditional LCD setup for zebrafish testing.
  • The study found that both assays successfully measured eye movements with similar accuracy and no significant differences in results, highlighting the advantages of the new approach in terms of convenience and cost-effectiveness.
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De-implementation is the process of reducing or stopping the use of ineffective, harmful, or low-value healthcare services that provide little or no benefit to patients. This article reviews relevant frameworks for planning and evaluating de-implementation initiatives, describes unique barriers, and provides effective strategies for de-implementation in Hospital Medicine.

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Background: Systematic approaches are needed to accurately characterize the dynamic use of implementation strategies and how they change over time. We describe the development and preliminary evaluation of the Longitudinal Implementation Strategy Tracking System (LISTS), a novel methodology to document and characterize implementation strategies use over time.

Methods: The development and initial evaluation of the LISTS method was conducted within the Improving the Management of SymPtoms during And following Cancer Treatment (IMPACT) Research Consortium (supported by funding provided through the NCI Cancer Moonshot).

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Background: Rapid cycle interventional research can accelerate improvements to cancer care delivery and patient health outcomes by answering multiple questions as part of a single research study. To complement ongoing efforts to increase awareness of and support for rapid cycle interventional research, we conducted a systematic portfolio analysis of research grants funded by the National Cancer Institute on the topic.

Methods: We used standard portfolio analytic methods for identifying, coding, and synthesizing rapid cycle interventional research funded by the National Cancer Institute between 2016 and 2022.

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  • Externalizing disorders (ED) are a significant public health issue with strong genetic links, making genes like ADGRL3 important for study.
  • Research using adgrl3.1 zebrafish highlighted behavioral traits such as high impulsivity, risk-taking, and hyperactivity, which are typical of ED.
  • Atomoxetine can alleviate these behaviors, indicating a role of noradrenergic systems, while brain studies reveal new genetic pathways that may contribute to understanding and treating ED.
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Purpose: To improve radiopacity of radiolucent absorbable poly-p-dioxanone (PPDO) inferior vena cava filters (IVCFs) and demostrate their effectiveness in clot-trapping ability.

Materials And Methods: Tungsten nanoparticles (WNPs) were incorporated along with polyhydroxybutyrate (PHB), polycaprolactone (PCL), and polyvinylpyrrolidone (PVP) polymers to increase the surface adsorption of WNPs. The physicochemical and in vitro and in vivo imaging properties of PPDO IVCFs with WNPs with single-polymer PHB (W-P) were compared with those of WNPs with polymer blends consisting of PHB, PCL, and PVP (W-PB).

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  • - Social isolation negatively impacts health, leading to increased anxiety and changes in gene expression in zebrafish at different life stages after just 2 weeks of isolation.
  • - Upon reintroduction to social environments, most gene expression levels returned to normal within 24 hours, except for angptl4, which remained elevated, indicating a possible adaptive response.
  • - The study suggests that angptl4 plays a crucial role in how organisms respond to social isolation, with notable differences between young and aging zebrafish, emphasizing the significance of social interactions for mental health.
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Attending to one's personal hygiene is a private and ritualistic act that is linked to self-expression and is important for one's well-being and self-esteem. Providing effective support with personal hygiene to patients can demonstrate thoughtfulness and sensitivity to their individual needs. Nurses in all fields of nursing may encounter patients who identify as transgender, but many nurses have expressed concerns about their lack of knowledge and confidence in that area of care.

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  • Intellectual disability (ID) is a common disorder that affects cognitive and adaptive functioning, with X-linked intellectual disability (XLID) impacting 1.7 out of 1,000 males due to mutations on the X chromosome.
  • Researchers identified three specific mutations in a gene related to XLID in seven patients from different families, all of whom exhibited common symptoms such as intellectual disability and abnormal eye movements.
  • A zebrafish model was created to study the gene's function, revealing that knockout (KO) zebrafish had significant developmental issues, supporting the gene's role in learning and psychiatric disorders.
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  • The gene being studied is linked to various psychiatric and neurodevelopmental disorders, but how it causes these issues remains unclear.
  • In zebrafish, the gene shows specific expression patterns during development and in adult brains, indicating its role in sensory processing and behavior.
  • Deficiency in this gene leads to behavioral changes in zebrafish, such as hyperactivity and altered social interactions, suggesting similarities with traits seen in mice and humans with psychiatric disorders, highlighting the need for further research on its functions.
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Background: Although patient navigation has shown promise for increasing participation in colorectal cancer screening and follow-up, little evidence is available to guide implementation of patient navigation in clinical practice. We characterize 8 patient navigation programs being implemented as part of multi-component interventions of the National Cancer Institute's Cancer Moonshot Accelerating Colorectal Cancer Screening and Follow-Up Through Implementation Science (ACCSIS) initiative.

Methods: We developed a data collection template organized by ACCSIS framework domains.

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The use of absorbable inferior vena cava filters (IVCFs) constructed with poly-p-dioxanone (PPDO) eliminates risks and complications associated with the use of retrievable metallic filters. Radiopacity of radiolucent PPDO IVCFs can be improved with the incorporation of nanoparticles (NPs) made of high-atomic number materials such as gold and bismuth. In this study, we focused on incorporating tungsten NPs (WNPs), along with polyhydroxybutyrate (PHB), polycaprolactone (PCL), and polyvinylpyrrolidone (PVP) polymers to increase the surface adsorption of the WNPs.

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Generating actionable research findings quickly and efficiently is critical for improving the delivery of cancer-related care and outcomes. To address this issue, the National Cancer Institute convened subject matter experts, researchers, clinicians, and patients for a 2-day virtual meeting in February 2022. The purpose of this meeting was to identify how rapid cycle interventional research methods can be used to generate findings useful in improving routine clinical practice.

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  • Haploinsufficiency of a gene related to histone methyltransferase causes intellectual disability and Autism Spectrum Disorder (ASD).
  • Zebrafish mutants created using CRISPR/Cas9 show defects in social behavior, including poor shoaling and lack of interest in social interactions.
  • Treatment with risperidone improves social interest, and molecular analysis suggests reduced synaptic function could explain the observed social impairments, making zebrafish a good model for drug screening in ASD.
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