Publications by authors named "Ryan P"

Scholarly activity is a key component of most residency programmes. To establish fundamental research skills and fill gaps within training curricula, we developed an online, asynchronous set of modules called to introduce trainees to various topics that are germane to the conduct of research and evaluated its effectiveness in resident research education. was utilised by residents at One Brooklyn Health in Brooklyn, NY.

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Rationale: Race-based estimates of pulmonary function in children could influence the evaluation of asthma in children from racial and ethnic minoritized backgrounds.

Objectives: To determine if race-neutral (GLI-Global) versus race-specific (GLI-Race-Specific) reference equations differentially impact spirometry evaluation of childhood asthma.

Methods: The analysis included 8,719 children aged 5 to <12 years from 27 cohorts across the United States grouped by parent-reported race and ethnicity.

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Background: The current diagnostic strategy for hepatitis C virus (HCV) infection involves a two-step approach: antibody HCV screening followed by confirmatory nucleic acid testing. This study aimed to evaluate the diagnostic performance of the Abbott ARCHITECT HCV Ag assay in serum/plasma samples as a potential one-step alternative for diagnosing active HCV infection in people living with hepatitis B virus (PLWHB) through a systematic review and meta-analysis.

Methods: A systematic review and meta-analysis were conducted following PRISMA-DTA guidelines.

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Article Synopsis
  • Pyrochlore iridates are notable for studying complex phenomena due to their strong spin-orbit coupling, electronic interactions, and geometrically frustrated lattice structures.
  • In thin films of (111) YIrO with thicknesses ≤30 nm, researchers found a unique quantum disordered state at temperatures as low as 5 K, which was characterized by dispersionless magnetic excitations.
  • Below approximately 125 K, an anomalous Hall effect suggests the existence of chiral spin configurations, attributed to magnetic frustration in the lower-dimensional structure that leads to spin-liquid behavior without long-range order.
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Data literacy, the ability to understand and effectively communicate with data, is crucial for researchers to interpret and validate data. However, low reproducibility in biomedical research is nowadays a significant issue, with major implications for scientific progress and the reliability of findings. Recognizing this, funding bodies such as the European Commission emphasize the importance of regular data management practices to enhance reproducibility.

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Background: Hepatitis C virus (HCV) reinfection following successful treatment threatens the achievement of HCV elimination. The primary aim of this study is to assess reinfection rate three years after sustained virologic response (SVR) in people who inject drugs (PWID) that are on opioid agonist treatment (OAT) who underwent anti-HCV treatment with interferon-free regimens.

Methods: Observational, non-interventional, prospective, descriptive study carried out in Spanish tertiary public hospitals between 2017 and 2022.

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Importance: Respiratory syncytial virus (RSV) infection can cause severe illness in adults. However, there is considerable uncertainty in the burden of RSV-associated hospitalizations among adults prior to RSV vaccine introduction.

Objective: To describe the demographic characteristics of adults hospitalized with laboratory-confirmed RSV and to estimate annual rates and numbers of RSV-associated hospitalizations, intensive care unit (ICU) admissions, and in-hospital deaths.

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Background: Longitudinal trends in per- and polyfluoroalkyl substances (PFAS) serum concentrations across pregnancy have not been thoroughly examined, despite evidence linking prenatal PFAS exposures with adverse birth outcomes.

Objectives: We sought to characterize longitudinal PFAS concentrations across pregnancy and to examine the maternal-fetal transfer ratio among participants in a study of risk and protective factors for adverse birth outcomes among African Americans.

Methods: In the Atlanta African American Maternal-Child cohort (2014-2020), we quantified serum concentrations of four PFAS in 376 participants and an additional eight PFAS in a subset of 301 participants during early (8-14 weeks gestation) and late pregnancy (24-30 weeks gestation).

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  • * An analysis of 44,816 hospitalizations revealed that 90% of cases were likely attributable to COVID-19, particularly focusing on admissions from July 2022 to September 2023, where 86% were linked to COVID-19-related symptoms and treatments.
  • * The research found that younger adults and those without underlying health conditions were less likely to have COVID-19-attributable hospitalizations, suggesting that severe cases are more prevalent in older patients and those with pre-existing health issues.
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Background: While the estimated number of U.S. influenza-associated deaths is reported annually, detailed data on the epidemiology of influenza-associated deaths, including the burden of in-hospital versus post-hospital discharge deaths are limited.

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  • Hepatitis C virus (HCV) microelimination focuses on detecting and treating hidden infections in vulnerable populations, particularly people experiencing homelessness (PEH) who may suffer from substance use disorders, highlighting the role of point-of-care testing and peer support in infection prevention.
  • A study conducted in Madrid from 2019 to 2023 assessed active HCV infection among PEH, utilizing rapid testing methods and analyzing various risk factors, including substance use and financial instability.
  • Out of 2,709 screened PEH, 13.4% tested positive for HCV antibodies, with a prevalence of 6.3% for active infection; key risk factors identified were injection drug use (IDU) and associated behaviors, leading to
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The COVID-19-Associated Hospitalization Surveillance Network (COVID-NET) was established in March 2020 to monitor trends in hospitalizations associated with SARS-CoV-2 infection. COVID-NET is a geographically diverse population-based surveillance system for laboratory-confirmed COVID-19-associated hospitalizations with a combined catchment area covering approximately 10% of the US population. Data collected in COVID-NET includes monthly counts of hospitalizations for persons with confirmed SARS-CoV-2 infection who reside within the defined catchment area.

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Dried blood spot (DBS) sampling is increasingly used for hepatitis C virus (HCV) screening. HCVcAg testing offers a faster and more streamlined approach to diagnosing HCV infection. We conducted a systematic review and meta-analysis to assess the diagnostic performance of the Abbott ARCHITECT HCV Ag assay for screening active HCV infection using DBS samples.

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Water-solid interfaces pervade the natural environment and modern technology. On some surfaces, water-water interactions induce the formation of partially dissociated interfacial layers; understanding why is important to model processes in catalysis or mineralogy. The complexity of the partially dissociated structures often makes it difficult to probe them quantitatively.

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Background: The goal of treatment of hepatitis B virus (HBV) and human immunodeficiency virus (HIV) coinfection is suppression of both viruses; yet incomplete HBV suppression on tenofovir (TFV) disoproxil fumarate (TDF)-based antiretroviral therapy (ART) is common. This study investigated TFV resistance-associated mutations (RAMs) in individuals with HBV/HIV coinfection with viremia on TDF/lamivudine (3TC)-containing ART.

Methods: Samples from individuals with HBV DNA levels ≥20 IU/mL in a cross-sectional study of 138 persons with HBV/HIV coinfection in Ghana were analyzed in the present study.

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  • Tartary buckwheat is a grain rich in health-beneficial flavonoids that help with inflammation and protect against heart disease and diabetes.
  • Researchers characterized the FtMYB163 gene, which is part of the R2R3-MYB transcription factor family and is involved in regulating flavonoid production in Tartary buckwheat.
  • Overexpressing FtMYB163 in transgenic plants increased the levels of key genes and several flavonoids, indicating its positive role in flavonol biosynthesis.
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Among adults, COVID-19 hospitalization rates increase with age. Data from the COVID-19-Associated Hospitalization Surveillance Network were analyzed to estimate population-based COVID-19-associated hospitalization rates during October 2023-April 2024 and identify demographic and clinical characteristics of adults aged ≥18 years hospitalized with COVID-19. Adults aged ≥65 years accounted for 70% of all adult COVID-19-associated hospitalizations, and their COVID-19-associated hospitalization rates were higher than those among younger adult age groups.

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  • The study investigates the genetic factors linked to severe COVID-19, specifically focusing on hospitalized cases in admixed Americans.
  • Researchers conducted the largest genome-wide association study (GWAS) for COVID-19 hospitalization in this population, identifying four significant genetic associations, including two novel loci found in Latin Americans.
  • The findings highlight the importance of including diverse populations in genomic research, aiming to improve understanding of genetic risks associated with COVID-19 across different ethnic groups.
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  • * From October 2022 to April 2024, there were 1,470 COVID-19-related hospitalizations among infants, with rates higher than any age group except those 75 and older.
  • * The percentage of hospitalized infants whose mothers were vaccinated dropped significantly, and severe outcomes were common, with many requiring intensive care and some serious cases resulting in death, highlighting the need for pregnant individuals to get vaccinated.
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