Publications by authors named "Michael Smith"

With the majority of the U.S. swine industry being generally bounded by social licensing, there is a growing need to understand social perspectives to better adapt to consumer demands.

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Background: Lung transplantation has become more common in patients aged 65 years and older. We aimed to examine outcomes across age groups and identify risk factors for decreased survival.

Methods: United Network for Organ Sharing data for all primary lung transplants from 1/1/2006 to 3/8/2023 was retrospectively reviewed.

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Small extracellular vesicles (sEVs) isolated from plasma of lung transplant recipients (LTRs) with chronic lung allograft dysfunction (CLAD) contain increased levels of lung associated self-antigens, Kα1 tubulin and collagen V, and decreased expression of the tumor suppressor liver kinase B1 (LKB1). In this study, sEVs were isolated from plasma collected from LTRs with or without cystic fibrosis (CF) from multiple centers at the onset of CLAD and 6 and 12 months before clinical diagnosis of CLAD (n = 32) as well as from time-matched stable controls (n = 25). sEVs were analyzed for Kα1 tubulin, collagen V, and LKB1 by western blot.

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Pediatric pulmonary hypertension is a heterogeneous disease associated with significant morbidity and mortality. MicroRNAs have been implicated as both pathologic drivers of disease and potential therapeutic targets in pediatric pulmonary hypertension. We sought to characterize the circulating microRNA profiles of a diverse array of pediatric patients with pulmonary hypertension using high-throughput sequencing technology.

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Ultra-processed food (UPF) consumption is excessive across the United States (US). Understanding perceptions of food based on processing is critical to elucidate reasons for UPF intake and inform tool development for measuring related cognition. Design and evaluate perceptions of UPF and non-UPF food among general US adults.

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Article Synopsis
  • Collagen fibers are crucial for maintaining tissue strength and stability, and this study explores how bacterial collagenase affects their mechanical properties, especially in the context of emphysema, a lung condition characterized by collagen breakdown.
  • Researchers conducted tensile tests on bovine lung collagen fibers to assess how mechanical forces during breathing influence the fibers' degradation and strength, finding that mechanical stress significantly enhances the negative impact of collagenase digestion.
  • The study utilized both experimental techniques and computational modeling to analyze changes in fiber structure and mechanics, revealing that collagen fibers become softer and more prone to rupture under enzymatic and mechanical stress, which has implications for understanding diseases like emphysema.
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Biological invasions pose significant threats to ecological and economic stability, with invasive pests like the Asian longhorned beetle ( Motschulsky, ALB) causing substantial damage to forest ecosystems. Effective pest management relies on comprehensive knowledge of the insect's biology and invasion history. This study uses genomics to address these knowledge gaps and inform existing biosurveillance frameworks.

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Article Synopsis
  • The study investigates how race and ethnicity influence antibiotic usage among hospitalized children, utilizing data from over 846,000 inpatient visits in 2022 across the Pediatric Health Information System.
  • Findings indicate that Non-Hispanic Black children were less likely to receive antibiotics compared to Non-Hispanic White children, while Non-Hispanic Native Hawaiian/Other Pacific Islander children had a higher likelihood of receiving them.
  • The authors suggest that hospitals should re-evaluate their policies regarding antibiotic prescriptions to address these disparities, and further research is needed to better understand the factors contributing to these variations in treatment.
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Background: Familial sex trafficking is a form of sex trafficking that involves a family member exchanging sex with a child, to someone else, for something of value. Due to its covert nature, human trafficking is severely under-reported, however, in 2021 over 10,500 sex trafficking survivors were reported to the National Human Trafficking Hotline and the majority had a familial recruiter (33 %) (Polaris, 2022). To our knowledge, this is the first scoping review on familial sex trafficking.

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Background: Pain is common in Crohn's disease (CD) even after endoscopic healing is achieved. Depression, sleep disturbances, fatigue, and worry about pain impact the pain experience. There is a bidirectional relationship between sleep and pain, though it has received minimal attention in CD.

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Objectives: Serum protein abundance was assessed in adult and juvenile dermatomyositis (DM and JDM) patients to determine differentially regulated proteins, altered pathways, and candidate disease activity biomarkers.

Methods: Serum protein expression from 17 active adult DM and JDM patients each was compared to matched, healthy control subjects by a multiplex immunoassay. Pathway analysis and protein clustering of the differentially regulated proteins were examined to assess underlying mechanisms.

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Symmetry is pervasive across the tree of life, and organisms (including humans) build symmetrical structures for reproduction, locomotion, or aesthetics. Symmetry, however, does not necessarily span across levels of biological organization (e.g.

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Introduction: Early identification of traumatic brain injury followed by timely, targeted treatment is essential. We aimed to establish the ability of prehospital Glasgow Coma Scale score alone and combined with vital signs to predict hospital-diagnosed traumatic brain injury.

Methods: This study included adults from the 2017-2020 Trauma Quality Improvement Program data set with blunt mechanism.

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Poor preoperative sleep quality and impaired sleep continuity may heighten acute postoperative pain intensity and increase analgesic consumption, with negative implications for recovery, mental and physical health. The main objective of the current review was to investigate the relationship between preoperative sleep disturbance and acute postoperative pain control. Four electronic databases were systematically searched from inception to December 2023.

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Our case highlights an atypical presentation of endocarditis with acute ischaemic stroke in a male patient in his 60s. The patient had undergone a congenital bicuspid aortic valve replacement with a bioprosthetic valve and an ascending aortic root graft with a pacemaker. He experienced intermittent fevers, chills and malaise over 15 months leading up to his presentation.

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Objectives: COVID-19 hit at the midpoint of Choose Well, a statewide contraceptive access initiative commenced in South Carolina (SC) in 2017. This study assessed whether the pandemic altered the trends in contraceptive use among SC Medicaid during the first half of Choose Well.

Methods: Contraception use among 333,253 women was analyzed from 2017 to 2022, divided into (January 2017-February 2020) and (March 2020-December 2022) periods.

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Background: Borderline personality disorder (BPD) is a severe mental disorder that is characterised by a pervasive pattern of instability of interpersonal relationships, self-image, and mood as well as marked impulsivity. BPD has its peak incidence and prevalence from puberty through to emerging adulthood. BPD is a controversial diagnosis in young people.

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This technical report summarizes the results of a systematic review designed to support the American Academy of Pediatrics' "Clinical Practice Guideline: Opioid Prescribing for Acute Pain Management in Children and Adolescents in Outpatient Settings." PubMed and Excerpta Medica Database were searched from 2010 to 2023 to identify randomized clinical trials and systematic reviews related to outpatient opioid prescribing to children. Overall, 11 randomized controlled trials were included.

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Article Synopsis
  • The American Academy of Pediatrics released their first clinical practice guideline to help healthcare providers safely prescribe opioids for acute pain in children and adolescents, focusing on minimizing risks such as opioid use disorder and overdose.
  • The guideline also highlights disparities in pain management for Black, Hispanic, and American Indian/Alaska Native youth, advocating for fair treatment across all demographics, regardless of language, socioeconomic status, or geographic location.
  • It emphasizes a multimodal approach to pain management, recommending nonpharmacologic therapies and nonopioid medications, with strict guidelines for opioid prescriptions, including avoiding certain medications for specific age groups and starting with low doses and short supply durations.
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Distal esophageal spasm (DES) is a rare motility disorder presenting with dysphagia or chest pain. Although studies suggest a link between DES and gastroesophageal reflux disease (GERD), data supporting a distinct GERD-related phenotype are limited. This study aims to investigate demographic, symptomatic, and physiologic differences between DES subjects with and without GERD.

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Objective: This study gathered adolescent and caregiver perspectives on sleep hygiene practices and beliefs for Black families living in low-resourced urban communities.

Methods: Semistructured interviews were conducted with adolescents (n = 9) and caregivers (n = 9) from January-March 2021, during the COVID-19 pandemic. Interview questions included adolescent's current sleep habits, barriers, and home and neighborhood influences.

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  • The study discusses the effective and selective synthesis of iminosugars, specifically 1,4-dideoxy-1,4-imino-D-arabinitol (DAB) and lentiginosine, focusing on their seven stereoisomers.
  • The starting material for these syntheses is 4-benzoyl-6-deoxy-6-iodoglycopyranosides, yielding between 38% to 68% for DAB and between 44% to 89% for lentiginosine.
  • A key highlight of the process is a complex multistep reaction involving zinc-mediated reductive elimination, reductive amination, and intramolecular nucleophilic substitution, which allows for the
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Background: Monoclonal antibodies are widely used anticancer therapies. Increasing demand for ambulatory care necessitates exploration of efficiency measures.

Objectives: The primary objective was to evaluate the impacts on chair time and associated cost of priming IV administration sets with a bolus of the prescribed monoclonal antibody drugs.

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