Publications by authors named "Jepson B"

Article Synopsis
  • AZD2816 is a variant-specific COVID-19 vaccine designed to improve immunity against the SARS-CoV-2 beta variant while still resembling the original AZD1222 vaccine.
  • The study involved unvaccinated adults in a randomized, multinational trial across several countries, primarily assessing the safety and effectiveness of administering different schedules of the two vaccines over a period of 180 days.
  • Results indicated comparable safety profiles and immune responses to both vaccines, with slight variations in the rates of adverse events and antibody responses among the different groups.
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  • The study examines the use of left atrial strain (LAS) in children with multisystem inflammatory syndrome (MIS-C) and its relation to cardiac injury and inflammation.
  • Results showed that LAS parameters were significantly lower in MIS-C patients compared to healthy controls and those with cardiac injury had even more reduced LAS metrics.
  • The findings suggest that LAS could be a reliable diagnostic tool for detecting cardiac dysfunction in MIS-C and correlates with inflammatory markers, highlighting its potential use in clinical settings.
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  • The study examined the relationship between echocardiographic and laboratory findings at admission and the severity of multisystem inflammatory syndrome in children (MIS-C) associated with COVID-19, focusing on vasoactive medication usage.
  • Out of 118 patients, 48% were given vasoactive medication, with key indicators like elevated brain natriuretic peptide, C-reactive protein, and lower left ventricular ejection fraction linked to more severe disease.
  • Results suggest that laboratory markers, particularly those indicating inflammation and heart injury, could be more effective in predicting MIS-C severity compared to strain parameters or LVEF, especially since many patients with a normal LVEF still required vasoactive support.
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Article Synopsis
  • The study evaluated the efficacy and safety of AZD2816, a new COVID-19 vaccine variant, compared to the existing AZD1222 vaccine as booster shots for individuals who had previously received two doses of either vaccine.
  • Conducted across 23 sites in the UK and Poland, the mixed methods approach included random assignment of nearly 1,400 adult participants and ensured blinding of participants and research staff regarding the groups.
  • Results showed that both vaccines had similar safety profiles, with high percentages of participants reporting mild side effects, and demonstrated acceptable levels of antibody production against the virus.
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Cardiovascular computed tomography (CCT) is rated appropriate by published guidelines for the initial evaluation and follow up of congenital heart disease (CHD) and is an essential modality in cardiac imaging programs for patients of all ages. However, no recommended core competencies exist to guide CCT in CHD imaging training pathways, curricula development, or establishment of a more formal educational platform. To fill this gap, a group of experienced congenital cardiac imagers, intentionally inclusive of adult and pediatric cardiologists and radiologists, was formed to propose core competencies fundamental to the expert-level performance of CCT in pediatric acquired and congenital heart disease and adult CHD.

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Taxol is an antitumor drug derived from the bark of the Pacific Yew tree that inhibits microtubule disassembly, resulting in cell cycle arrest in late G2 and M phases. Additionally, Taxol increases cellular oxidative stress by generating reactive oxygen species. We hypothesized that the inhibition of specific DNA repair machinery/mechanisms would increase cellular sensitivity to the oxidative stress capacity of Taxol.

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Background: Multisystem inflammatory syndrome in children (MIS-C) commonly involves cardiac injury with both systolic and diastolic dysfunction. Left atrial strain (LAS) detects subclinical diastolic dysfunction in adults but is infrequently used in children. We evaluated LAS in MIS-C and the associations with systemic inflammation and cardiac injury.

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Background: Patients with eosinophilic severe asthma (SA) have an increased risk of asthma exacerbations. Benralizumab is approved for eosinophilic SA, and there is great value in understanding real-world effectiveness.

Objective: The aim of this analysis was to examine the effectiveness of benralizumab in a real-world cohort of subspecialist-treated US patients with eosinophilic SA.

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Objective: Fetuses with congenital heart disease (CHD) are at increased risk of pregnancy loss compared with the general population. We aimed to assess the incidence, timing and risk factors of pregnancy loss in cases with major fetal CHD, overall and according to cardiac diagnosis.

Methods: This was a retrospective, population-level cohort study of fetuses and infants diagnosed with major CHD between 1997 and 2018 identified by the Utah Birth Defect Network (UBDN), excluding cases with termination of pregnancy and minor cardiovascular diagnoses (e.

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Article Synopsis
  • Breakthrough SARS-CoV-2 infections in vaccinated individuals generally lead to milder disease compared to unvaccinated people, highlighting the benefits of vaccination during the pandemic.
  • In a study involving AZD1222 (ChAdOx1 nCoV-19) vaccinees, results showed they experienced lower incidence, shorter duration of symptoms, and reduced viral loads compared to placebo recipients.
  • Vaccinated individuals exhibited strong immune responses, including increased antibody production and T-cell responses, which were linked to better control of the virus and reduced transmission potential.
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Rare cases of thrombosis with thrombocytopenia syndrome (TTS) have been reported after AZD1222. Anti-platelet factor-4 (PF4) antibodies were observed in patients following presentation of TTS, however it is unclear if AZD1222 was responsible for inducing production of anti-PF4. Paired samples (baseline and day-15) from a phase 3 trial of AZD1222 vs placebo were analyzed for anti-PF4 levels; 19/1727 (1.

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Introduction: Atropine sulfate is an FDA-approved medical countermeasure (MCM) for the treatment of organophosphorus nerve agent and organophosphate pesticide toxicity. Sufficient MCM supplies must be available in an incident involving a mass human exposure either from an accidental chemical release or a terrorist attack.

Methods: We performed a randomized, 3-sequence, 3-period phase I crossover study to assess the bioavailability and pharmacokinetics (PK) of a single dose (0.

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The global supply of COVID-19 vaccines remains limited. An understanding of the immune response that is predictive of protection could facilitate rapid licensure of new vaccines. Data from a randomized efficacy trial of the ChAdOx1 nCoV-19 (AZD1222) vaccine in the United Kingdom was analyzed to determine the antibody levels associated with protection against SARS-CoV-2.

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Objective: To identify, summarise and evaluate evidence on the correlation between perceived and actual neighbourhood safety (personal and road danger) and diverse forms of outdoor active mobility behaviour (ie, active play, exercise, and travel) among primary-school-aged children.

Design: A systematic review of evidence from observational studies exploring children's active mobility behaviour and safety.

Data Sources: Six electronic databases were searched: Google Scholar, PubMed, Scopus, Science Direct, ProQuest and Web of Science from study inception until July 2020.

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An unprecedented number of human infections with avian influenza A(H7N9) in the fifth epidemic wave during the winter of 2016-2017 in China and their antigenic divergence from the viruses that emerged in 2013 prompted development of updated vaccines for pandemic preparedness. We report on the findings of a clinical study in healthy adults designed to evaluate the safety and immunogenicity of three dose levels of recombinant influenza vaccine derived from highly pathogenic A/Guangdong/17SF003/2016 (H7N9) virus adjuvanted with AS03 or MF59 oil-in water emulsions. Most of the six study groups meet the FDA CBER-specified vaccine licensure criterion of 70% seroprotection rate (SPR) for hemagglutination inhibition antibodies to the homologous virus.

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Staphylococcus aureus colonizes patients with atopic dermatitis (AD) and exacerbates disease by promoting inflammation. The present study investigated the safety and mechanisms of action of Staphylococcus hominis A9 (ShA9), a bacterium isolated from healthy human skin, as a topical therapy for AD. ShA9 killed S.

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Background: Multiple Anthrax vaccines are licensed or in development for post-exposure prophylaxis in individuals 18 to 65 years of age. No information exists on anthrax vaccines in populations over the age of 65. It is critical that we assess the capacity of anthrax vaccines to generate a protective immune response in older individuals.

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Introduction: Traumatic brain injury (TBI) remains a significant cause of morbidity and mortality. The purpose of this study is to examine outcomes after discharge and identify factors from the index admission that may contribute to long-term mortality.

Methods: The study population is composed of patients who survived to discharge from a previously published study examining TBI.

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In a sub-study of a clinical trial (NCT01737710) investigating the immunogenicity of trivalent inactivated influenza vaccine (IIV3) administered intradermally or intramuscularly to individuals with atopic dermatitis (AD), we assessed T cell and antigen-presenting cell (APC) responses to influenza B in AD and Non-AD controls. The comparison of IFN-γ ELISpot in 58 AD and 31 Non-AD showed lower responses in AD pre-vaccination. Pre-vaccination, AD also had lower Th2 responses and less inflammatory cytokine production by APC measured by flow cytometry and cytokine levels in culture supernatants.

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Objectives: To develop a model to predict risk of intravenous immunoglobulin (IVIg) nonresponse in patients with Kawasaki disease (KD) to assist in early discharge decision-making.

Methods: Retrospective cohort study of 430 patients 0 to 18 years old discharged from a US children's hospital January 1, 2010, through July 31, 2017 with a diagnosis of KD. IVIg nonresponse was defined as at least 1 of the following: temperature ≥38.

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The tRNA mR methyltransferase (Trm10) family is conserved throughout Eukarya and Archaea. Despite the presence of a single Trm10 gene in Archaea and most single-celled eukaryotes, metazoans encode up to three homologs of Trm10. Several disease states correlate with a deficiency in the human homolog TRMT10A, despite the presence of another cytoplasmic enzyme, TRMT10B.

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Respiratory infections are common precursors to asthma exacerbations in children, but molecular immune responses that determine whether and how an infection causes an exacerbation are poorly understood. By using systems-scale network analysis, we identify repertoires of cellular transcriptional pathways that lead to and underlie distinct patterns of asthma exacerbation. Specifically, in both virus-associated and nonviral exacerbations, we demonstrate a set of core exacerbation modules, among which epithelial-associated SMAD3 signaling is upregulated and lymphocyte response pathways are downregulated early in exacerbation, followed by later upregulation of effector pathways including epidermal growth factor receptor signaling, extracellular matrix production, mucus hypersecretion, and eosinophil activation.

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Patients with atopic dermatitis (AD) are commonly colonized with Staphylococcus aureus (AD S. aureus), but what differentiates this group from noncolonized AD patients (AD S. aureus) has not been well studied.

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Objective: To determine the safety and pharmacokinetics of alpha-1 antitrypsin (AAT) in adults and children.

Research Design And Methods: Short-term AAT treatment restores euglycemia in the non-obese mouse model of type 1 diabetes. A phase I multicenter study in 16 subjects with new-onset type 1 diabetes studied the safety and pharmacokinetics of Aralast NP (AAT).

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The first open heart operation ever performed was by Clarence Dennis on April 5, 1951, at the University of Minnesota. For several years he had worked developing a heart-lung machine. The operation was on a young girl considered to have an ostium secundum atrial septal defect, but at the procedure a large ostium primum was identified instead.

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