Publications by authors named "Alfonso Arias"

Aim: To describe the use of bibliometrics in nursing and assess their contribution to research and practice.

Design: A content analysis was conducted of topics, data sources and applications of bibliometrics in nursing research articles.

Methods: The study universe included 129 bibliometric articles on nursing retrieved from Scopus.

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We compared the clinical and analytical performance of Alzheimer's disease (AD) plasma biomarkers measured using the single-molecule array (Simoa) and Lumipulse platforms. We quantified the plasma levels of amyloid beta 42 (Aβ42), Aβ40, phosphorylated tau (Ptau181), and total tau biomarkers in 81 patients with mild cognitive impairment (MCI), 30 with AD, and 16 with non-AD dementia. We found a strong correlation between the Simoa and Lumipulse methods.

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Aim: The aim of this study was to evaluate a blended pilot training course on Healthy Work Environments (HWEs) for critical care nurses as follows: 1) to explore the experience of trainees and trainers who took part in the training; and 2) to identify the strengths and weaknesses of the training program in its potential transferability to nursing practice in Intensive Care Units (ICUs).

Background: Despite the evidence supporting the association between HWEs and job satisfaction, nursing retention, and patient outcomes, nurses still have high rates of burnout, mental health problems and intent to leave. To address this challenge, a blended training was created and piloted with the aim to highlight the relevance and impact of HWEs, enhancing its transferability to daily practice.

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Article Synopsis
  • Traditional single-cell transcriptome sequencing only captures a limited portion of transcripts by focusing on polyadenylated RNA, missing many important non-coding and non-polyadenylated transcripts.
  • The new VASA-seq method allows for the analysis of the entire transcriptome in single cells by fragmenting and tailing all RNA after cell lysis, and it works with both plate-based and droplet microfluidic systems.
  • Applying VASA-seq to over 30,000 single cells in developing mouse embryos revealed key findings such as novel cell type markers, insights into blood maturation trajectories, and extensive alternative splicing during development.
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Gastrulation is a fundamental and critical process of animal development whereby the mass of cells that results from the proliferation of the zygote transforms itself into a recognizable outline of an organism. The last few years have seen the emergence of a number of experimental models of early mammalian embryogenesis based on Embryonic Stem (ES) cells. One of this is the Gastruloid model.

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Objective: The objective was to design and validate a tool for assessing nursing students' self-perceptions about safe medication management.

Methods: A descriptive instrumental study was conducted involving construct definition, development of the tool, analysis of the content validity, and psychometric evaluation. Consensus regarding the content was obtained through a two-round Delphi process, and the resulting tool (the NURSPeM) was administered to nursing students to examine its internal consistency, temporal stability, and construct validity, the latter through exploratory factor analysis.

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A striking property of vertebrate embryos is the emergence of a conserved body plan across a wide range of organisms through the process of gastrulation. As the body plan unfolds, gene regulatory networks (GRNs) and multicellular interactions (cell regulatory networks, CRNs) combine to generate a conserved set of morphogenetic events that lead to the phylotypic stage. Interrogation of these multilevel interactions requires manipulation of the mechanical environment, which is difficult in vivo.

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The difficulty of studying post-implantation development in mammals has sparked a flurry of activity to develop in vitro models, termed embryoids, based on self-organizing pluripotent stem cells. Previous approaches to derive embryoids either lack the physiological morphology and signaling interactions, or are unconducive to model post-gastrulation development. Here, we report a bioengineering-inspired approach aimed at addressing this gap.

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Pharmaceuticals intended for use in patients of childbearing potential need to be tested for teratogenicity before marketing. Several pharmaceutical companies use animal-free in vitro models which allow a more rapid selection of lead compounds and contribute to 3Rs principles ('replace, reduce and refine') by streamlining the selection of promising compounds submitted to further regulatory studies in animals. Currently available in vitro models typically rely on adherent monolayer cultures or disorganized 3D structures, both of which lack the spatiotemporal and morphological context of the developing embryo.

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Background: Final-year nursing students in Spain augmented the health care workforce during the COVID-19 pandemic.

Purpose: To understand the lived experience of nursing students who joined the health care workforce during the first wave of the COVID-19 outbreak (March-May 2020).

Method: Qualitative content analysis of the reflective journals of 40 nursing students in Spain.

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Background: To conduct a pilot study on an alternative model for the provision of respiratory therapies in sleep apnea-hypopnea syndrome (SAHS) by internalizing the service with the purchase, monitoring and control of continuous positive airway pressure (CPAP) equipment by the hospital.

Methods: An observational, prospective pilot study of comparative cost analysis by internalizing the service to include all patients up to a budget limit of 5000 euros. The cost of internalizing the service included the acquisition of CPAP equipment and all the necessary accessories in addition to the nursing days necessary to track the patients.

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Article Synopsis
  • Manual ELISA assays are commonly used to quantify biomarkers but have issues with variability, leading researchers to compare them with fully automated methods (Lumipulse and Elecsys) in a study involving 149 patients with different types of dementia.
  • * The study found a high correlation between all three methods for measuring biomarkers Aβ42, T-tau, and P-tau, although some systematic differences in values were identified.
  • * The automated methods (Lumipulse and Elecsys) were shown to align well with clinical diagnoses, particularly when using biomarker ratios like Aβ42/Aβ40, enhancing diagnostic accuracy for Alzheimer's disease.
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Background: Recent epidemics have placed overwhelming demands on health systems, leading at times to the deployment of nursing students during the crisis. Little is known about the impact this experience has on students. Although studies have explored nursing students' knowledge about infection control, there are no specific recommendations regarding how these issues should be addressed in nurse education.

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Study Objectives: The majority of studies investigating the association between sleep and Alzheimer's disease (AD) biomarkers have been performed in healthy participants. Our objective was to investigate the association between sleep and several biomarkers that reflect distinct aspects of AD physiopathology.

Methods: The cohort included 104 individuals with mild-moderate AD.

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A fundamental question in developmental biology is how the early embryo establishes the spatial coordinate system that is later important for the organization of the embryonic body plan. Although we know a lot about the signaling and gene-regulatory networks required for this process, much less is understood about how these can operate to pattern tissues in the context of the extensive cell movements that drive gastrulation. In zebrafish, germ layer specification depends on the inheritance of maternal mRNAs [1-3], cortical rotation to generate a dorsal pole of β-catenin activity [4-8], and the release of Nodal signals from the yolk syncytial layer (YSL) [9-12].

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Objective: The aim of this study was to investigate the usefulness of Alzheimer's disease Cerebrospinal Fluid (CSF) biomarkers in predicting the progression to dementia in patients with Mild Cognitive Impairment (MCI).

Methods: One hundred and thirteen patients were consecutively recruited from April 2012 to April 2014. Measurement of CSF biomarkers (amyloid-β42 (Aβ42), total tau (t-tau) and phosphorylated tau (p-tau)) and a neuropsychological evaluation were performed for all patients.

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Objective: The aim of this study was to translate into Spanish the Self Competence in Death Work Scale (SC-DWS) and to explore its psychometric properties of validity and reliability.

Method: Participants were 106 nursing professionals, who worked in units related to care at the end of life. Participants answered a questionnaire containing the Spanish forms of the Self-Competence in Death Work Scale (SC-DWS), Perceived Life Significance Scale (PLSS), Death Anxiety Inventory-Revised (DAI-R), Hospital Anxiety and Depression Scale (HADS) and General Self Efficacy Scale (GSE).

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The emergence of multiple axes is an essential element in the establishment of the mammalian body plan. This process takes place shortly after implantation of the embryo within the uterus and relies on the activity of gene regulatory networks that coordinate transcription in space and time. Whereas genetic approaches have revealed important aspects of these processes, a mechanistic understanding is hampered by the poor experimental accessibility of early post-implantation stages.

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The FGF/ERK signaling pathway is highly conserved throughout evolution and plays fundamental roles during embryonic development and in adult organisms. While a plethora of expression data exists for ligands, receptors and pathway regulators, we know little about the spatial organization or dynamics of signaling in individual cells within populations. To this end we developed a transcriptional readout of FGF/ERK activity by targeting a histone H2B-linked Venus fluorophore to the endogenous locus of Spry4, an early pathway target, and generated Spry4 embryonic stem cells (ESCs) and a derivative mouse line.

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Background: Hallucinations may have a broad spectrum and include so-called minor hallucinations (MHs). MHs include passage hallucinations (PHs), visual illusions, and presence hallucinations (PrHs).

Objective: To determine the prevalence and characteristics of MHs in Alzheimer's disease (AD) and amnestic mild cognitive impairment (aMCI) patients, and to describe their potential relationship with cognition, behavioral symptoms, and use of psychoactive drugs.

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The establishment of the anteroposterior (AP) axis is a crucial step during animal embryo development. In mammals, genetic studies have shown that this process relies on signals spatiotemporally deployed in the extra-embryonic tissues that locate the position of the head and the onset of gastrulation, marked by T/Brachyury () at the posterior of the embryo. Here, we use gastruloids, mESC-based organoids, as a model system with which to study this process.

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Single-cell approaches are providing a new lexicon of developmental cell biology by revealing heterogeneities in seemingly uniform cellular populations. By bridging scales, single-cell approaches should, in principle, galvanize our understanding of how individual cells adopt distinct fates as they build complex tissues.

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Synopsis of recent research by authors named "Alfonso Arias"

  • - Alfonso Arias's research primarily revolves around improving nursing practices and healthcare outcomes through innovative methodologies, including bibliometrics and blended training solutions, to enhance nurses' work environments and competencies.
  • - Recent studies highlight the role of bibliometrics in nursing science, revealing significant contributions to research and practice, while also evaluating training programs aimed at creating healthier work environments in critical care settings across Europe.
  • - Additionally, Arias explores advancements in Alzheimer's disease biomarker diagnostics, promoting the use of cutting-edge platforms to improve accuracy and correlation in clinical assessments, demonstrating the intersection of nursing practice and biomedical innovation.