Publications by authors named "Ferrer K"

DEK :: AFF2 fusion nonkeratinizing squamous cell carcinoma (NKSCC) is an emerging entity in the sinonasal tract, temporal bone, and skull base. However, the clinical behavior of these tumors has not been well studied. Here, we report the largest cohort of DEK :: AFF2 carcinomas to determine if morphology, mitotic rate, and/or Ki-67 IHC are associated with patient outcomes, including a comparison with high-risk human papillomavirus (HPV)-associated and independent patients.

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Article Synopsis
  • A new compound, 3,3'-bipyrazolo [3,4-]pyridine, was created from a specific precursor using a chemical reaction known as the Vilsmeier-Haack reaction.
  • The compound's structure and properties were analyzed using various spectroscopic techniques, including FT-IR, HRMS, H NMR, and C NMR, which allowed for a detailed understanding of its characteristics.
  • The study also included theoretical calculations to analyze the compound's behavior, confirming important findings about its energy and preferred shapes through density functional theory methods.
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Introduction: The Oncotype Dx Genomic Prostate Score (GPS) is a 17-gene relative expression assay that predicts adverse pathology at prostatectomy. We conducted a novel randomized controlled trial to assess the impact of GPS on urologist's treatment preference for favorable risk prostate cancer (PCa): active surveillance versus active treatment (i.e.

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In global health, international nongovernmental organizations (NGOs) frequently hire, train, and partner with host-country clinicians who manage public outreach and patient care. We conducted a general interpretivist study of Basotho clinicians hired by NGOs and academic affiliates in Lesotho to identify cultural barriers and facilitators to community and patient education. We conducted 13 interviews involving 16 participants (one physician, one nutritionist, 14 nurses).

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Brassinosteroids (BRs) are steroidal phytohormones that are essential for plant growth, development and adaptation to environmental stresses. BRs act in a dose-dependent manner and do not travel over long distances; hence, BR homeostasis maintenance is critical for their function. Biosynthesis of bioactive BRs relies on the cell-to-cell movement of hormone precursors.

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A single crystal of a piperonal chalcone derivative was obtained, fully characterized, and crystallized by a slow evaporation technique. The synthesized compound was characterized by UV-Visible, FT-IR, HRMS, H NMR, and C NMR spectroscopic studies and X-ray crystallography, revealing that the crystal belongs to a triclinic crystal system with a 1̄ space group, = 2. In the present work, we focus on molecular modeling studies such as Hirshfeld surface analysis, energy framework calculations, frontier molecular orbital analysis, natural bond orbital analysis, and NLO properties of a π-conjugate system combining the chalcone and the pyrazole[3,4-]pyridine scaffolds to describe the in-depth structural analysis thereof.

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Objective: US-based academic institutions involved in global health (GH) partnerships can have a positive impact on health care systems in low/middle-income countries but lack a consistent approach. Existing priority setting and resource allocation (PSRA) frameworks do not adequately capture the interpersonal and sociopolitical complexity of decision-making in GH work. The authors explored how US-based GH practitioners prioritize and allocate resources for different types of support in academic GH partnerships.

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Objective: To compare Prostate Health Index (PHI) and prostate-specific antigen (PSA) density as secondary tests after multiparametric magnetic resonance imaging (mpMRI) in improving the detection accuracy of Gleason grade group (GG) 2-5 prostate cancer (PCa) and in decreasing unnecessary biopsies in a multiethnic biopsy-naïve population.

Methods: From February 2017 to February 2020, we recruited consecutive biopsy-naïve men in participating urology clinics for elevated PSA levels. They all had a PHI score, mpMRI, and prostate biopsy.

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Objective The COVID-19 pandemic is of special concern for pregnant women. A growing body of evidence suggests the virus can have a deleterious impact upon outcomes related to birth and newborn health. There is a paucity of published research demonstrating the factors that influence disease severity among those who are pregnant, while a growing body of evidence demonstrates that vertical transmission occurs.

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We report a case of sustained viral suppression with dolutegravir monotherapy in a treatment-experienced adult with perinatally acquired HIV. The patient had recurrent pancreatitis with multiple antiretroviral drugs, leading to discontinuation of antiretroviral therapy for several years. She was ultimately initiated on dolutegravir monotherapy two times per day via a gastrostomy tube.

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As North American hospitals serve increasingly diverse patient populations, including recent immigrants, refugees, and returned travelers, all pediatric hospitalists (PHs) require foundational competency in global health, and a subset of PHs are carving out niches focused in global health. Pediatric hospitalists are uniquely positioned to collaborate with low- and middle-income country clinicians and child health advocates to improve the health of hospitalized children worldwide. Using the 2018 WHO standards for improving the quality of care for children and adolescents worldwide, we describe how PHs' skills align closely with what the WHO and others have identified as essential elements to bring high-quality, sustainable care to children in low- and middle-income countries.

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International non-governmental organisations (NGOs) and academic institutions support health care capacity building to strengthen health systems in low and middle-income countries. We conducted a phenomenological study of foreign and Basotho clinicians who participated in clinical continuing professional development (CPD) in Lesotho. Clinicians included physicians, nurses, and a nutritionist.

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Brassinosteroids are polyhydroxysteroids that are involved in different plants' biological functions, such as growth, development and resistance to biotic and external stresses. Because of its low abundance in plants, much effort has been dedicated to the synthesis and characterization of brassinosteroids analogs. Herein, we report the synthesis of brassinosteroid 24-nor-5β-cholane type analogs with 23-benzoate function and 22,23-benzoate groups.

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Purpose: The Genomic Prostate Score (GPS), performed on biopsy tissue, predicts adverse outcome in prostate cancer (PCa) and has shown promise for improving patient selection for active surveillance (AS). However, its impact on treatment choice in high-risk populations of African Americans is largely unknown and, in general, the effect of the GPS on this difficult decision has not been evaluated in randomized trials.

Methods: Two hundred men with National Comprehensive Cancer Network very low to low-intermediate PCa from three Chicago hospitals (70% Black, 16% college graduates) were randomly assigned at diagnosis to standard counseling with or without a 12-gene GPS assay.

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The metabolism of brassinosteroid leads to structural modifications in the ring skeleton or the side alkyl chain. The esterification and glycosylation at C-3 are the most common metabolic pathways, and it has been suggested that conjugate brassinosteroids are less active or inactive. In this way, plants regulate the content of active brassinosteroids.

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The United States is entering a pivotal period in history, led by extraordinary shifts in the demographic makeup of children who are in need of medical, educational, and developmental services. For the first time in this country's history, the majority of children are being born to non-white populations. Simultaneously, racism (personal, institutional, and systemic) is now being recognized as a powerful social determinant of children's mental and physical health by the time they enter kindergarten.

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Among 185 Black, cis-gender, predominantly heterosexual adolescents and young adults (AYA) and 35 guardians surveyed in Washington, DC, the majority of AYA (96.8%) and guardians (94.3%) were unaware of pre-exposure prophylaxis (PrEP); 62.

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Brassinosteroids are a class of plant hormones that regulate a broad range of physiological processes such as plant growth, development and immunity, including the suppression of biotic and abiotic stresses. In this paper, we report the synthesis of new brassinosteroid analogues with a nitrogen-containing side chain and their biological activity on . Based on molecular docking experiments, two groups of brassinosteroid analogues were prepared with short and long side chains in order to study the impact of side chain length on plants.

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Calibration of ion-selective electrodes (ISEs) is cumbersome, time-consuming, and constitutes a significant limitation for the development of single-use and wearable disposable sensors. To address this problem, we have studied the effect of ion-selective membrane solvent on ISE reproducibility by comparing tetrahydrofuran (THF) (a typical solvent for membrane preparation) and cyclohexanone. In addition, a single-step integration of semiconducting/transducer polymer poly(3-octylthiophene) (POT) with single-walled carbon nanotubes (SWCNTs) into the paper-based ISEs (PBISEs) substrate was introduced.

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T-cell responses to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) have been described in recovered patients, and may be important for immunity following infection and vaccination as well as for the development of an adoptive immunotherapy for the treatment of immunocompromised individuals. In this report, we demonstrate that SARS-CoV-2-specific T cells can be expanded from convalescent donors and recognize immunodominant viral epitopes in conserved regions of membrane, spike, and nucleocapsid. Following in vitro expansion using a good manufacturing practice-compliant methodology (designed to allow the rapid translation of this novel SARS-CoV-2 T-cell therapy to the clinic), membrane, spike, and nucleocapsid peptides elicited interferon-γ production, in 27 (59%), 12 (26%), and 10 (22%) convalescent donors (respectively), as well as in 2 of 15 unexposed controls.

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Objective: To evaluate the uptake of perinatal HIV preventive interventions by the risk of perinatal HIV transmission in mother-infant pairs in a high-HIV prevalence area in the US.

Study Design: This was a retrospective cohort study of mother-infant pairs with perinatal HIV exposure during 2013-2017 managed at a subspecialty pediatric HIV program in Washington, DC. We collected demographic data, maternal HIV history, delivery mode, maternal and infant antiretroviral drug (ARV) use, and infant HIV test results.

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An adolescent female patient presenting with subacute onset of dysphagia and hoarseness underwent a direct laryngoscopy, which revealed epiglottitis. After 2 hospitalizations and multiple consultations and biopsies, all infectious testing results for viral, bacterial, fungal, and acid-fast bacilli etiologies were negative. The patient's use of electronic cigarettes was the only exposure elicited with a likely role in her presentation.

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