7,118 results match your criteria: "the University of Arizona[Affiliation]"

Noninvasive vs invasive respiratory support for patients with acute hypoxemic respiratory failure.

PLoS One

September 2024

Department of Biomedical Engineering, College of Engineering, The University of Arizona, Tucson, Arizona, United States of America.

Background: Noninvasive respiratory support modalities are common alternatives to mechanical ventilation in acute hypoxemic respiratory failure. However, studies historically compare noninvasive respiratory support to conventional oxygen rather than mechanical ventilation. In this study, we compared outcomes in patients with acute hypoxemic respiratory failure treated initially with noninvasive respiratory support to patients treated initially with invasive mechanical ventilation.

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The present study extends previous research reporting that orthographic forms, such as the use of a single letter or two letters to indicate the same sound, affect sound duration in second-language (L2) production. Native-language (L1) Korean L2 English sequential bilinguals performed a delayed repetition task for word pairs containing the same consonant or vowel spelled with one or two letters. Korean provided an interesting case because (1) it has an alphabetic orthographic system but not a Roman alphabet and thus, there may be no interorthographic interference and (2) it has no phonemic length contrast for vowels, whereas there is some disagreement on the contrastiveness of the consonant length, which can lead to an asymmetry in the grapheme-to-phoneme correspondence between vowels and consonants.

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Sampling Root-Associated Microbiome Communities of Maize ().

Cold Spring Harb Protoc

September 2024

Center for Applied Genetic Technologies, University of Georgia, Athens, Georgia 30602, USA.

The soil microbiome of maize shapes its fitness, sustainability, and productivity. Accurately sampling maize's belowground microbial communities is important for identifying and characterizing these functions. Here, we describe a protocol to sample the maize rhizosphere (including the rhizoplane and endorhizosphere) and root zone (still influential but further from the root) in a form suitable for downstream analyses like culturing and DNA extractions.

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Background: Vital signs are an essential component of the emergency department (ED) assessment. Vital sign abnormalities are associated with adverse events in the ED setting and may indicate a risk of poor outcomes after ED discharge.

Clinical Question: What is the risk of adverse events among adult patients with abnormal vital signs at the time of ED discharge?

Evidence Review: Studies retrieved included 6 retrospective studies with adult patients discharged from the ED.

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Since the Doctor of Nursing Practice (DNP) was implemented, there has been ongoing discussion about whether or not DNP-prepared faculty are eligible for promotion and tenure. This column updates that discussion through input from two DNP-prepared faculty key informants.

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Article Synopsis
  • Poor nutrition can lead to serious health problems, but medical students often don't learn enough about it.
  • A new program was created to help future doctors learn practical nutrition and cooking skills while studying medicine.
  • After participating in the program, students showed some improvement in their eating habits and felt that discussing nutrition with patients was very important.
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Type 1 diabetes mellitus (T1DM) is a growing global health concern that affects approximately 8.5 million individuals worldwide. T1DM is characterized by an autoimmune destruction of pancreatic β cells, leading to a disruption in glucose homeostasis.

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Background: Acute exacerbations of chronic rhinosinusitis (AECRS) are thought to arise from common viral infections progressing to secondary bacterial infections. However, the pathophysiology of AECRS remains poorly understood due to a lack of prospective longitudinal studies.

Methods: We conducted a one-year prospective longitudinal study involving chronic rhinosinusitis (CRS) adults.

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Article Synopsis
  • The study investigated how the severity of metabolic syndrome (MetS) impacts the risk of developing heart failure (HF) among Black individuals, focusing on different subtypes of HF, specifically HF with preserved ejection fraction (HFpEF) and reduced ejection fraction (HFrEF).
  • In a sample of 4,069 participants, those with higher MetS severity showed a significantly increased risk of HF, with a twofold greater risk overall and an even higher risk associated with HFpEF.
  • The findings suggest that maintaining good metabolic health is crucial for reducing the incidence of heart failure, particularly among Black individuals.
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  • The soil microbiome helps plants grow and recycle nutrients, making it very important for soil health.
  • Researchers created a smartphone app that can identify different bacteria in soil without needing expensive lab equipment, achieving about 88% accuracy.
  • This app can also quickly check soil health and conditions in the field, showing that it's a practical tool for studying and managing soil.
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Plumage ornaments act as important sexual signals, though the extent to which these ornaments act as honest signals-and the physiological mechanisms that maintain honesty-remain poorly understood. We studied the pigmentary basis of tail color in the American Redstart (Setophaga ruticilla), a species of songbird with sexual dichromatism and delayed plumage maturation; younger males resemble females, only replacing their yellow feathers for bright orange ones after the first breeding season. The yellow rectrices of females and young males and the orange feathers of older males largely contain the same pigments, but in vastly different proportions.

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Gold Tripyrrindione: Redox Chemistry and Reactivity with Dichloromethane.

Inorg Chem

September 2024

Department of Chemistry and Biochemistry, The University of Arizona, 1306 E. University Blvd., Tucson, Arizona 85721, United States.

The identification of ligands that stabilize Au(III) centers has led to the isolation of complexes for applications in catalysis, gold-based therapeutics, and functional materials. Herein, we report the coordination of gold by tripyrrin-1,14-dione, a linear tripyrrole with the scaffold of naturally occurring metabolites of porphyrin-based protein cofactors (e.g.

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Background: The nursing faculty shortage in the United States presents a challenge to maintaining a robust healthcare workforce. Meaningful recognition (MR) is an evidence-based practice that improved nurse burnout (BO) in the clinical setting. There is limited literature on its impact on nurse faculty.

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Objective: The goal of this study was to survey the members of the American Society of Pediatric Neurosurgeons (ASPN) to assess the prevalence and associated risks of burnout among pediatric neurosurgeons. The authors aimed to identify the factors that most significantly contributed to this risk to provide a baseline group of characteristics to improve physician well-being.

Methods: Institutional Review Board approval from the University of Arizona was obtained, and the 7-question and 9-question Mayo Physician Well-Being Index (WBI) was distributed to members of the ASPN (n = 275).

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Emergence of newer variants of SARS-CoV-2 underscores the need for effective antivirals to complement the vaccination program in managing COVID-19. The multi-functional papain-like protease (PLpro) of SARS-CoV-2 is an essential viral protein that not only regulates the viral replication but also modulates the host immune system, making it a promising therapeutic target. To this end, we developed an in vitro interferon stimulating gene 15 (ISG15)-based Förster resonance energy transfer (FRET) assay and screened the National Cancer Institute (NCI) Diversity Set VI compound library, which comprises 1584 small molecules.

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G-protein coupled receptors help regulate cellular function and communication, and are targets of small molecule drug discovery efforts. Conventional techniques to probe these interactions require labels and large amounts of receptor to achieve satisfactory sensitivity. Here, we use frequency-locked optical microtoroids for label-free characterization of membrane interactions in vitro at zeptomolar concentrations for the kappa opioid receptor and its native agonist dynorphin A 1-13, as well as big dynorphin (dynorphin A and dynorphin B) using a supported biomimetic membrane.

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Circulating free heme induces cytokine storm and pulmonary hypertension through the MKK3/p38 axis.

Am J Physiol Lung Cell Mol Physiol

October 2024

Division of Pulmonary, Critical Care, Sleep, and Occupational Medicine, Department of Medicine, Indiana University, Indianapolis, Indiana, United States.

Hemolysis is associated with pulmonary hypertension (PH), but the direct contribution of circulating free heme to the PH pathogenesis remains unclear. Here, we show that the elevated levels of circulating free heme are sufficient to induce PH and inflammatory response in mice and confirm the critical role of mitogen-activated protein kinase kinase-3 (MKK3)-mediated pathway in free heme signaling. Following the continuous infusion of heme for 2 wk, wild-type (WT) but not MKK3 knockout (KO) mice develop PH, as evidenced by a significantly elevated right ventricular (RV) systolic pressure, RV hypertrophy, and pulmonary vascular remodeling.

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Promoting Equitable Access to COVID-19 Vaccinations in Rural and Underserved Arizona: Experiences From Three County Health Departments.

Am J Public Health

October 2024

Bryna Koch, Mona Arora, Brianna Rooney, Patrick Wightman, and Dan Derksen are with the University of Arizona, Zuckerman College of Public Health, Arizona Center for Rural Health, Tucson. At the time of this study, Alicia Thompson was with Cochise County Health and Social Services, Bisbee, AZ. Blake Scott is with Coconino County Health and Human Services, Flagstaff, AZ. Diana Gomez, Miriam Galindo, and Kathy Ward are with the Yuma County Public Health Services District, Yuma, AZ.

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Description and Evaluation of a Pharmacy Graduate Health Services Research Methods Course.

Pharmacy (Basel)

August 2024

Department of Pharmacy Practice & Science, R. Ken Coit College of Pharmacy, The University of Arizona, 1295 N. Martin Ave., Tucson, AZ 85721, USA.

The purpose of this paper is to provide a description and evaluation of a graduate-level Health Services Research Methods course offered at the University of Arizona R. Ken Coit College of Pharmacy. This three-credit, round-table discussion-style course introduces students to fundamental concepts in healthcare study design and teaches them how to design and critique example studies for a variety of commonly encountered study designs.

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Limited Physical Functioning in United States Adults with Arthritis: Findings from the 2021 Medical Expenditure Panel Survey.

Diseases

August 2024

Department of Pharmacy Practice & Science, R. Ken Coit College of Pharmacy, The University of Arizona, 1295 N. Martin Ave., Tucson, AZ 85721, USA.

There is little published research on limited physical functioning in United States (US) adults with arthritis. The objective of this cross-sectional 2021 Medical Expenditure Panel Survey (MEPS) database study was to investigate the variables associated with limited physical functioning in US adults with arthritis. Logistic regression tested the associations of predisposing, enabling, and need variables with the dependent variable (limited physical functioning).

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Background:  Numerous surgical fields have embraced computer-aided design and computer-aided manufacturing (CAD/CAM), including plastic and reconstructive surgery. However, most of the literature and clinical use pertains to reconstruction of the head and neck. Herein, we provide a case series and systematic review of the literature, documenting the use of CAD/CAM in facilitating complex microvascular free tissue transfer for reconstructions involving the extremities, pelvis, and spine (EPS).

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Unlabelled: Evidence indicates that both vitamin D and the gut microbiome are involved in the process of colon carcinogenesis. However, it is unclear what effects supplemental vitamin D has on the gut microbiome and its metabolites in healthy adults. We conducted a double-blind, randomized, placebo-controlled trial to identify the acute and long-term microbiota structural and metabolite changes that occur in response to a moderate dose (4,000 IU) of vitamin D for 12 weeks in healthy adults.

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