Publications by authors named "KAHN J"

Voltage-Dependent Anion Channel 1 (VDAC1) is a mitochondrial outer membrane protein that plays a crucial role in regulating cellular energy metabolism and apoptosis by mediating the exchange of ions and metabolites between mitochondria and the cytosol. Mitochondrial dysfunction and oxidative stress are central features of neurodegenerative diseases. The pivotal functions of VDAC1 in controlling mitochondrial membrane permeability, regulating calcium balance, and facilitating programmed cell death pathways, position it as a key determinant in the delicate balance between neuronal viability and degeneration.

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While most adolescents experience mild-COVID-19 infection, those with underlying medical conditions have an increased risk of severe health outcomes. Furthermore, compared with other pediatric populations, adolescents have experienced higher rates of COVID-19-associated hospitalization. COVID-19 vaccine decision-making in adolescents during COVID-19 surges is not well understood.

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Objective: To analyze changes in balance and gait in patients undergoing rehabilitation postcraniectomy and postcranioplasty, including comparison of outcomes across time periods, rate of change, and among diagnoses.

Design: Retrospective cohort study.

Setting: Inpatient rehabilitation.

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Background: The association between skeletal muscle and adipose tissue (body composition) and early response using positron emission tomography (PET) in pediatric Hodgkin lymphoma (HL) remains unstudied.

Methods: Patients enrolled on Children's Oncology Group studies AHOD0031 (intermediate-risk HL) and AHOD0831 (high-risk HL) with digital abdominal computed tomography (CT) scans at diagnosis and PET scans after 2 cycles (PET2) were included. Two consecutive slices at the third lumbar vertebra were identified and skeletal muscle index (SMI, in cm2/m2) and total adipose tissue index (TATI, in cm2/m2) were calculated using sliceOmatic (Magog, Canada) and height at diagnosis.

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Background: Recovery management checkups done in primary care settings (RMC-PCs) can be an effective intervention to link individuals with substance use disorders (SUD) to treatment and help them stay engaged with treatment. There is reason to question, however, whether RMC-PCs are as effective for those who have been recently incarcerated or for those holding a minoritized, racial identity.

Methods: We examined data from a randomized controlled trial of RMC-PCs compared to a control condition ( = 266).

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Approximately 20%-40% of individuals with Tourette syndrome (TS) have rage attacks (RAs), which are recurrent, explosive behavioral outbursts that can cause significant functional impairment. Despite the impact of RA in TS, there has been limited research on treatment, and most studies have focused on pharmacologic interventions. Nonpharmacologic interventions have the potential to improve symptoms with fewer side effects.

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Background: Hypereosinophilic syndromes (HES) are a heterogenous group of eosinophilic disorders. To date, only retrospective studies of limited sample-size and/or follow-up duration are available.

Methods: The COHESion study is a national prospective multicenter multidisciplinary cohort recruiting both adults or children with the spectrum of eosinophilic disorders (including reactive HE/HES [HE/HES-R], idiopathic HES [HES-I], lymphocytic HES [HES-L], neoplastic HE/HES [HE/HES-N], HE of unknown significance [HE-US], as well as IgG4-related disease [IgG4RD] or ANCA-negative eosinophilic granulomatosis with polyangiitis [EGPA] overlaps).

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Background And Aims: Systemic sclerosis (SSc) is an autoimmune connective disease characterised by excessive extracellular matrix deposition and widespread skin and internal organ fibrosis including various cardiac manifestations. Heart involvement is one of the leading causes of death among patients with SSc. In this study, we aimed to assess the effect of various vasodilator treatments.

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Treatment of acute lymphoblastic leukemia (ALL) is associated with neurocognitive deficits in young children. While computerized measures have been utilized in pediatric oncology research, they exclude patients below the age of 4 years. Patients enrolled on "Treatment of Newly Diagnosed Acute Lymphoblastic Leukemia in Children and Adolescents" were offered participation in an optional neurocognitive study.

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Ethical issues arise in the context of implementation science that may differ from those encountered in other research settings. This report, developed out of a workshop convened by the Center for Translation Research and Implementation Science within the United States National Heart, Lung, and Blood Institute, identifies six key themes that are important to the assessment of ethical dimensions of implementation science. First, addressing ethical challenges in implementation science does not require new ethical principles, commitments, or regulations.

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  • A mental health study in western Kenya tested the feasibility of delivering treatments for major depression and PTSD through non-specialist staff in primary care settings, incorporating both in-person and mobile health (mHealth) options due to the COVID-19 pandemic.
  • The chosen intervention involved either psychotherapy (Interpersonal Psychotherapy) or medication (fluoxetine), with 2,162 public sector primary care patients participating.
  • A secondary analysis assessed participants' preferences for mHealth or in-person treatment, exploring their reasons for choosing one method over the other and comparing demographic and clinical characteristics between the two groups.
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  • The study aimed to assess the effectiveness of combining glucocorticoids (GCs) with cyclophosphamide (CYC) for treating patients with poor-prognosis eosinophilic granulomatosis with polyangiitis (EGPA) compared to using GCs alone.
  • Data from a European multicenter database were analyzed, involving 209 patients and focusing on relapse rates and other related outcomes over 12 to 24 months.
  • Results indicated that adding CYC significantly reduced the risk of relapse and related complications compared to GCs alone, suggesting a beneficial role for CYC in the treatment of poor-prognosis EGPA.
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Purpose: Accurate target delineation is essential when using intensity modulated radiation therapy for intact cervical cancer. In 2011, the Radiation Therapy Oncology Group published a consensus guideline using magnetic resonance imaging (MRI). The current project expands on the previous atlas by including computed tomography (CT)-based contours, contours with MRI and positron emission tomography (PET) registrations, the addition of common and complex scenarios, and incorporating information on simulation and treatment planning techniques.

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  • RNA undergoes over 170 chemical modifications that influence its structure and function, affecting gene expression and cellular processes across many species.
  • Recent advancements in high-throughput methods enable the detection of these RNA modifications at a single base level, enhancing research capabilities.
  • The review discusses new sequencing techniques for identifying 14 specific RNA modifications found in ribosomal RNA (rRNA), transfer RNA (tRNA), and messenger RNA (mRNA), along with the underlying principles of these methods.
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  • The study investigates the effectiveness of LCP Tac, an extended-release formulation of tacrolimus, on immune responses following liver transplantation.
  • The research involved measuring specific gene expressions related to immune function in 23 patients over the first year after their surgery.
  • Results show that personalized immunosuppression using NFAT-RGE monitoring may reduce infection risks linked to excessive immunosuppression, particularly in patients with infections.
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Importance: The U.S. pediatric acute care system has become more centralized, placing increasing importance on interhospital transfers.

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Contemporary understanding of the mechanisms of disease increasingly points to examples of "genetic diseases" with an infectious component and of "infectious diseases" with a genetic component. Such blurred boundaries generate ethical, legal, and social issues and highlight historical contexts that must be examined when incorporating host genomic information into the prevention, outbreak control, and treatment of infectious diseases.

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Objective: To develop a set of pediatric acute care hospital referral regions for use in studying pediatric acute care delivery and test their utility relative to other regional systems.

Study Design: We used state-level administrative databases capturing all pediatric acute care in 8 states to construct novel referral regions. We first constructed pediatric hospital service areas (PHSAs) based on 5 837 464 pediatric emergency department encounters.

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The rapidly advancing field of nanotechnology is driving the development of precise sensing methods at the nanoscale, with solid-state nanopores emerging as promising tools for biomolecular sensing. This study investigates the increased sensitivity of solid-state nanopores achieved by integrating DNA origami structures, leading to the improved analysis of protein translocations. Using holo human serum transferrin (holo-hSTf) as a model protein, we compared hybrid nanopores incorporating DNA origami with open solid-state nanopores.

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Wildfire smoke exposure leads to poorer health among those with pre-existing conditions such as asthma. Particulate matter in wildfire smoke can worsen asthma control, cause acute exacerbations, and increase health resource utilization (HRU) and costs. Research to date has been retrospective with few opportunities to project changes in underlying asthma control and HRU given exposure to wildfire smoke.

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