Publications by authors named "Beach C"

Introduction: Supraventricular tachycardia (SVT) is a common pediatric arrhythmia. Beta blockers (BBs) and calcium channel blockers (CCBs) are used for treatment despite little data examining their use. We describe the prescriptive tendencies, efficacy, and tolerability of BBs and CCBs used in the treatment of pediatric SVT.

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  • ROS1 tyrosine kinase inhibitors (TKIs) are effective for treating ROS1-positive non-small cell lung cancer, but the emergence of resistance mutations, particularly L2086F, poses a challenge.
  • The study compares the efficacy of different TKIs, revealing that type II TKIs maintain effectiveness against the L2086F mutation while type I TKIs do not, highlighting important structural differences in their binding.
  • Results indicate that cabozantinib is effective against ROS1 L2086F in clinical cases, but its multi-kinase activity suggests the need for more targeted options, with gilteritinib offering potential benefits worth further exploration.
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Introduction: This scoping review aimed to synthesize the fragmented evidence on ethical concerns related to the use of electrical and magnetic neuromodulation technologies, as well as brain-computer interfaces for enhancing brain function in healthy individuals, addressing the gaps in understanding spurred by rapid technological advancements and ongoing ethical debates.

Methods: The following databases and interfaces were queried: MEDLINE (via PubMed), Web of Science, PhilPapers, and Google Scholar. Additional references were identified via bibliographies of included citations.

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Light exposure is a vital regulator of physiology and behavior in humans. However, monitoring of light exposure is not included in current wearable Internet of Things (IoT) devices, and only recently have international standards defined [Formula: see text] -optic equivalent daylight illuminance (EDI) measures for how the eye responds to light. This article reports a wearable light sensor node that can be incorporated into the IoT to provide monitoring of EDI exposure in real-world settings.

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Waterfowl are housed in captivity for research studies that are infeasible in the wild. Accommodating the unique requirements of semi-aquatic species in captivity while meeting experimental design criteria for research questions can be challenging and may have unknown effects on animal health. Thus, testing and standardizing best husbandry and care practices for waterfowl is necessary to facilitate proper husbandry and humane care while ensuring reliable and repeatable research results.

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Mouse models of disease play a pivotal role at all stages of cancer drug development. Cell-line derived subcutaneous tumour models are predominant in early drug discovery, but there is growing recognition of the importance of the more complex orthotopic and metastatic tumour models for understanding both target biology in the correct tissue context, and the impact of the tumour microenvironment and the immune system in responses to treatment. The aim of this review is to highlight the value that orthotopic and metastatic models bring to the study of tumour biology and drug development while pointing out those models that are most likely to be encountered in the literature.

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  • The study investigates the resistance of ROS1-positive non-small cell lung cancer to various tyrosine kinase inhibitors (TKIs), highlighting that next-generation TKIs still face challenges in providing lasting therapeutic responses.
  • Researchers compared the efficacy of type I TKIs (like crizotinib and entrectinib) to type II TKIs (cabozantinib and merestinib) across different ROS1 mutations in cell models, finding that type II TKIs retained activity against specific resistant mutations.
  • The findings suggest that cabozantinib and gilteritinib can effectively inhibit the ROS1 L2086F mutation, with clinical cases showing positive responses to cabozantinib in patients experiencing
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Purpose: This report describes a multifaceted, trauma-informed initiative developed to address racial/ethnic maternal and infant health inequities in Washington, D.C.

Description: Structural racism and systemic oppression of marginalized communities have played a critical role in maternal and infant health inequities in the United States.

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Insertable cardiac monitors (ICMs) have been used more frequently and in a wider variety of circumstances in recent years. ICMs are used for symptom-rhythm correlation when patients have potentially arrhythmogenic syncope and for less traditional reasons such as rhythm surveillance in patients with genetic arrhythmia syndromes or other diseases with high arrhythmia risk. ICMs have good diagnostic yield in pediatric patients and in adults with congenital heart disease and have a low rate of complications.

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  • Recent reports indicate that playing electronic games can lead to dangerous heart rhythm issues in vulnerable kids.
  • A study identified 22 children aged 7-16 who experienced serious cardiac events while gaming, with some suffering cardiac arrest and even fatalities.
  • Most affected children had pre-existing heart conditions, and electronic war games, in particular, were common among those diagnosed with arrhythmias during gameplay.
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An immunosuppressive microenvironment causes poor tumor T cell infiltration and is associated with reduced patient overall survival in colorectal cancer. How to improve treatment responses in these tumors is still a challenge. Using an integrated screening approach to identify cancer-specific vulnerabilities, we identified complement receptor C5aR1 as a druggable target, which when inhibited improved radiotherapy, even in tumors displaying immunosuppressive features and poor CD8+ T cell infiltration.

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  • The study reviews the risks of MRI scans in pediatric patients with cardiac implantable electronic devices (CIEDs), focusing on those with epicardial or abandoned leads, where guidelines discourage routine scans.
  • A multicenter review analyzed 314 patients who underwent 389 MRIs from 2007 to 2022, assessing any adverse events or significant changes to their CIEDs post-scan.
  • Results showed only a small incidence of symptoms or CIED changes (4.9% of MRIs), suggesting that MRIs can be safely conducted for these patients without major complications.
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ROS1 is the largest receptor tyrosine kinase in the human genome. Rearrangements of the ROS1 gene result in oncogenic ROS1 kinase fusion proteins that are currently the only validated biomarkers for targeted therapy with ROS1 TKIs in patients. While numerous somatic missense mutations in ROS1 exist in the cancer genome, their impact on catalytic activity and pathogenic potential is unknown.

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  • Calmodulinopathy is caused by mutations in CALM genes and leads to serious arrhythmias, particularly in young people; the ICalmR aims to connect clinical symptoms with molecular causes.
  • The ICalmR has gathered data from 140 patients, showing a notable presence of CALM-LQTS and CALM-CPVT, and has observed a decrease in the frequency of serious cardiac events compared to past data.
  • The condition presents a wide range of symptoms, from severe arrhythmias to no symptoms at all; while therapy options are limited and based on current practices, management often involves medication and devices like defibrillators.
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Oral azacitidine (oral-AZA) maintenance is approved for adults with acute myeloid leukemia (AML) in remission post-intensive chemotherapy, not proceeding to hematopoietic stem cell transplantation. This study aimed to develop a population pharmacokinetic (PopPK) model to characterize oral-AZA concentration-time profiles in patients with AML, myelodysplastic syndrome, or chronic myelomonocytic leukemia. PopPK-estimated exposure parameters were used to evaluate exposure-response relationships in the phase III QUAZAR AML-001 study.

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  • The Impella device is most often utilized in children experiencing cardiogenic shock, with limited reports on its use during ablation procedures.
  • A pediatric case involving tachycardia-induced cardiomyopathy is discussed, where significant electromagnetic interference (EMI) from the Impella hindered proper mapping during the ablation.
  • This situation emphasizes the importance of careful planning among medical teams and the need for strategies to mitigate EMI when using magnet-based electroanatomic mapping systems.
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Oral azacitidine (Oral-AZA) maintenance therapy improved relapse-free (RFS) and overall survival (OS) significantly versus placebo for AML patients in remission after intensive chemotherapy (IC) in the phase 3 QUAZAR AML-001 study. Immune profiling was performed on the bone marrow (BM) at remission and on-treatment in a subset of patients with the aim of identifying prognostic immune features and evaluating associations of on-treatment immune effects by Oral-AZA with clinical outcomes. Post-IC, increased levels of lymphocytes, monocytes, T cells and CD34 + CD117+ BM cells were prognostically favourable for RFS.

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