Publications by authors named "Tyler J"

The interaction between cancer cells and the extracellular matrix (ECM) plays a pivotal role in tumour progression. While the extracellular degradation of ECM proteins has been well characterised, ECM endocytosis and its impact on cancer cell progression, migration, and metastasis is poorly understood. ECM internalisation is increased in invasive breast cancer cells, suggesting it may support invasiveness.

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The fossil puffer fish genus †Archaeotetraodon Tyler & Bannikov, 1994 is unique among the Tetraodontidae in having the upright central spinule of the dermal scale plates bifid rather than singular and undivided. Six species of this genus have previously been described variously from the Oligocene and Miocene of Russia, Italy, Algeria, and Ukraine. Described herein is a seventh species of this genus, †Archaeotetraodon bemisae sp.

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  • Researchers captured tiny oil droplets using a polymer brush made from a hydrophilic aldehyde-functional material.
  • The brush was created through a specific polymerization process and modified to add aldehyde groups.
  • The study shows that these nanosized droplets can bind to the polymer brush through chemical bonds, which can be adjusted by altering the pH of the solution, providing insights into oil droplet behavior on soft surfaces.
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Despite the prominence of C-N bond forming cross-coupling reactions as a strategy to assemble molecular fragments, aminative coupling approaches, in which two fragments are assembled directly at the heteroatom, represents a rarely exploited retrosynthetic strategy. Herein, we report the design, synthesis, and implementation of an anomeric amide reagent capable of promoting highly regioselective aminative alkene-arene and alkene-alkene coupling reactions. This transformation follows a sequence of catalyst-free chloroamination, N-deprotection, and formal nitrene functionalization, all in one-pot.

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Genome instability is a hallmark of aging, with the highly repetitive ribosomal DNA (rDNA) within the nucleolus being particularly prone to genome instability. Nucleolar enlargement accompanies aging in organisms ranging from yeast to mammals, and treatment with many antiaging interventions results in small nucleoli. Here, we report that an engineered system to reduce nucleolar size robustly extends budding yeast replicative lifespan in a manner independent of protein synthesis rate or rDNA silencing.

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Background: Sotalol is a class III antiarrhythmic drug used for the management of patients with atrial fibrillation to maintain sinus rhythm. Sotalol-induced QT interval prolongation can be proarrhythmic and is conventionally initiated in an inpatient setting where routine electrocardiographic (ECG) monitoring is available while sotalol reaches the steady state. The emergence of cellular-compatible home ECG devices, such as AliveCor's Kardia Mobile 6L, which offers 6-lead ECG, has made it possible to accurately measure QT intervals outside the hospital.

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Skeletal editing has received unprecedented attention as an emerging technology for the late-stage manipulation of molecular scaffolds. The direct achievement of functionalized carbon-atom insertion in aromatic rings is challenging. Despite ring-expanding carbon-atom insertion reactions, such as the Ciamician-Dennstedt re-arrangement, being performed for more than 140 years, only a few relevant examples of such transformations have been reported, with these limited to the installation of halogen, ester and phenyl groups.

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Background: Patients with large labral tears represent a subset of traumatic shoulder instability cases. Outcomes after arthroscopic stabilization in these patients have been studied less compared with other tears.

Purpose: To establish minimal clinically important difference (MCID), Patient Acceptable Symptom State (PASS), and substantial clinical benefit (SCB) thresholds for patients after arthroscopic repair of labral tears ≥270°.

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  • In response to DNA double-strand damage caused by ionizing radiation (IR), transcription is inhibited to allow for accurate DNA repair, with recovery of transcription happening afterwards.
  • A study reveals that the recovery of transcription post-IR is independent of the HIRA histone chaperone and involves a specific response where some gene transcripts are downregulated while others are upregulated.
  • A CRISPR/Cas9 screen identified factors linked to protein neddylation that influence transcriptional inhibition after IR, indicating that inhibiting neddylation can block this transcriptional response and could lead to cell cycle arrest in certain phases.
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  • Non-homologous end joining (NHEJ) is a crucial process for fixing DNA double strand breaks during the V(D)J recombination in immune cells.
  • The study finds that the loss of the senataxin helicase leads to difficulties in repairing these breaks, particularly when the DNA-PKcs is inactive.
  • It also reveals that senataxin works closely with other helicases like RECQL5 and translocases like HLTF, suggesting multiple backup systems are in place for effective NHEJ repair involving ATM and DNA-PKcs.
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The targeted and selective replacement of a single atom in an aromatic system represents a powerful strategy for the rapid interconversion of molecular scaffolds. Herein, we report a pyridine-to-benzene transformation nitrogen-to-carbon skeletal editing. This approach proceeds a sequence of pyridine ring-opening, imine hydrolysis, olefination, electrocyclization, and aromatization to achieve the desired transmutation.

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We report a measurement of exclusive J/ψ and ψ(2s) photoproduction in Au+Au ultraperipheral collisions at sqrt[s_{NN}]=200  GeV using the STAR detector. For the first time, (i) the ψ(2s) photoproduction in midrapidity at the Relativistic Heavy-Ion Collider has been experimentally measured; (ii) nuclear suppression factors are measured for both the coherent and incoherent J/ψ production. At average photon-nucleon center-of-mass energy of 25.

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We report the first double-differential neutrino-argon cross section measurement made simultaneously for final states with and without protons for the inclusive muon neutrino charged-current interaction channel. The proton kinematics of this channel are further explored with a differential cross section measurement as a function of the leading proton's kinetic energy that extends across the detection threshold. These measurements use data collected with the MicroBooNE detector from 6.

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Concerns related to poor oxygenation in patients with severe hepatopulmonary syndrome (HPS) may be prohibitive when considering their candidacy for liver transplantation. Extracorporeal membrane oxygenation (ECMO) has been utilized in only a few case reports as a bridge to liver transplant in patients with severe respiratory failure. We report a case of a 66-year-old man with cirrhosis and very severe (arterial oxygen pressure (PaO2) < 50 mmHg) hepatopulmonary syndrome who underwent an orthotopic liver transplant with the planned use of venovenous-ECMO.

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We present a first search for dark-trident scattering in a neutrino beam using a dataset corresponding to 7.2×10^{20} protons on target taken with the MicroBooNE detector at Fermilab. Proton interactions in the neutrino target at the main injector produce π^{0} and η mesons, which could decay into dark-matter (DM) particles mediated via a dark photon A^{'}.

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As the chemistry that surrounds the field of strained hydrocarbons, such as bicyclo[1.1.0]butane, continues to expand, it becomes increasingly advantageous to develop alternative reactivity modes that harness their unique properties to access new regions of chemical space.

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Article Synopsis
  • - The study addresses the difficulty in identifying rare genetic disorders in children due to issues like incomplete records and varied symptoms, aiming to create an algorithm called PheIndex using electronic medical records.
  • - PheIndex was developed with 13 expert-established criteria and validated through chart reviews, successfully identifying 1,088 children at risk among over 93,000 live births with strong performance metrics: 90% sensitivity, 97% specificity, and 94% accuracy.
  • - The algorithm serves as a tool for healthcare providers to detect potential rare genetic disorders, prompting them to consider further diagnostic testing or referrals to genetic specialists.
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We present a measurement of η production from neutrino interactions on argon with the MicroBooNE detector. The modeling of resonant neutrino interactions on argon is a critical aspect of the neutrino oscillation physics program being carried out by the DUNE and Short Baseline Neutrino programs. η production in neutrino interactions provides a powerful new probe of resonant interactions, complementary to pion channels, and is particularly suited to the study of higher-order resonances beyond the Δ(1232).

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Chimerism analysis is used to evaluate patients after allogeneic hematopoietic stem cell transplant (allo-HSCT) for engraftment and minimal measurable residual disease (MRD) monitoring. A combination of short-tandem repeat (STR) and quantitative polymerase chain reaction (qPCR) was required to achieve both sensitivity and accuracy in the patients with various chimerism statuses. In this study, an insertion/deletion-based multiplex chimerism assay by next generation sequencing (NGS) was evaluated using 5 simulated unrelated donor-recipient combinations from 10 volunteers.

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We present the first search for heavy neutral leptons (HNLs) decaying into νe^{+}e^{-} or νπ^{0} final states in a liquid-argon time projection chamber using data collected with the MicroBooNE detector. The data were recorded synchronously with the NuMI neutrino beam from Fermilab's main injector corresponding to a total exposure of 7.01×10^{20} protons on target.

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Chimerism testing supports the study of engraftment and measurable residual disease (MRD) in patients after allogeneic hematopoietic stem cell transplant. In chimerism MRD, relapse can be predicted by increasing mixed chimerism (IMC), recipient increase ≥0.1% in peripheral blood, and proliferating recipient cells as a surrogate of tumor activity.

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As power quality becomes a higher priority in the electric utility industry, the amount of disturbance event data continues to grow. Utilities do not have the required personnel to analyze each event by hand. This work presents an automated approach for analyzing power quality events recorded by digital fault recorders and power quality monitors operating within a power transmission system.

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Background: Previous research has outlined the health benefits of exercise including its therapeutic potential for substance use disorders (SUD). These data have already been utilized and it is now common to find exercise as part of SUD treatment and relapse prevention programs. However, we need to better understand different exercise regimens and determine which would be the most beneficial for SUDs.

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Objective: To explore predictors and moderators of clinical worsening during a double-blind trial in which patients with obsessive-compulsive disorder (OCD) were randomized to either continue or discontinue their Serotonin Reuptake Inhibitor (SRI) medication after achieving wellness from the addition of exposure and response prevention (EX/RP) therapy.

Method: The data came from a double-blind discontinuation trial that included N = 101 participants, 35 of whom were removed from the study due to clinical worsening. We first used LASSO logistic regression to identify which of the 34 potential baseline variables of interest (including demographics, diagnoses, other relevant clinical constructs, and specific genotypes), might moderate or predict this clinical worsening.

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