Publications by authors named "J-F Chen"

Background: Abelacimab is a fully human monoclonal antibody that binds to the inactive form of factor XI and blocks its activation. The safety of abelacimab as compared with a direct oral anticoagulant in patients with atrial fibrillation is unknown.

Methods: Patients with atrial fibrillation and a moderate-to-high risk of stroke were randomly assigned, in a 1:1:1 ratio, to receive subcutaneous injection of abelacimab (150 mg or 90 mg once monthly) administered in a blinded fashion or oral rivaroxaban (20 mg once daily) administered in an open-label fashion.

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Background: Approximately half of the patients with acute ischemic stroke who receive intravenous thrombolysis (IVT) do not achieve an excellent outcome. Remote ischemic conditioning (RIC) as a promising neuroprotective treatment may improve clinical outcomes in this population. This study aimed to assess the efficacy and safety of RIC in patients with IVT.

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Background: Whether it is effective and safe to extend the time window of intravenous thrombolysis up to 24 hours after the last known well is unknown. We aimed to determine the efficacy and safety of tenecteplase in Chinese patients with acute ischemic stroke due to large/medium vessel occlusion within an extended time window.

Methods: Patients with ischemic stroke presenting 4.

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Background: Immunoglobulin G antibodies (Abs) to platelet factor 4 (PF4) complexed to heparin (PF4/H) commonly occur after H exposure but cause life-threatening complications of H-induced thrombocytopenia (HIT) in only a few patients. Presently, only platelet activation assays reliably distinguish anti-PF4/H Abs that cause disease (HIT Abs) from those likely to be asymptomatic (AAbs).

Objectives: Recent studies indicate that complement activation is an important serologic property of HIT Abs and is essential for IgG Fc receptor IIA-mediated cellular activation.

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Multiplexed imaging technologies provide crucial insights into interactions between tumors and their surrounding tumor microenvironment (TME), but their widespread adoption is limited by cost, time, and tissue availability. We introduce HistoPlexer, a deep learning (DL) framework that generates spatially-resolved protein multiplexes directly from histopathology images. HistoPlexer employs the conditional generative adversarial networks with custom loss functions that mitigate slice-to-slice variations and preserve spatial protein correlations.

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Background And Objectives: There is a paucity of data directly comparing the outcome of surgical techniques available for the treatment of hypothalamic hamartomas (HHs). This study aims to evaluate the safety and efficacy of commonly used surgical approaches in the treatment of HH-related epilepsy.

Methods: A systematic review and individual participant data (IPD) meta-analysis was conducted.

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Article Synopsis
  • - The study investigated a diverse group of 95 enzymes from the N-terminal nucleophile hydrolase superfamily, focusing on their ability to hydrolyze synthetic polyamides like nylon.
  • - About 40% of these enzymes demonstrated significant nylon hydrolase activity, comparable to the well-known enzyme NylC, without any clear link between their evolutionary relationships and their hydrolytic capabilities.
  • - Researchers identified several enzymes with strong substrate selectivity, especially those that efficiently processed Nylon 6,6, and also analyzed the crystal structure of a specific hydrolase to better understand the factors affecting its activity and selectivity.
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Background: Physical literacy (PL) can positively affect the health of children, adolescents, and adults, and is closely related to cardiorespiratory fitness (CRF).

Objective: To perform a systematic review and meta-analysis to examine the relationship between overall physical literacy (PL) and CRF in children and adolescents.

Methods: Cross-sectional, cohort and experimental studies on the relationship between PL and CRF in children and adolescents were collected by searching the Web of Science Core Collection, PubMed, EBSCOhost, ScienceDirect, Cochrane Library and China National Knowledge Infrastructure (CNKI) databases.

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Background: Subacute and chronic subdural hematomas are common and frequently recur after surgical evacuation. The effect of adjunctive middle meningeal artery embolization on the risk of reoperation remains unclear.

Methods: In a prospective, multicenter, interventional, adaptive-design trial, we randomly assigned patients with symptomatic subacute or chronic subdural hematoma with an indication for surgical evacuation to undergo middle meningeal artery embolization plus surgery (treatment group) or surgery alone (control group).

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While immune-checkpoint blockade (ICB) has revolutionized treatment of metastatic melanoma over the last decade, the identification of broadly applicable robust biomarkers has been challenging, driven in large part by the heterogeneity of ICB regimens and patient and tumor characteristics. To disentangle these features, we performed a standardized meta-analysis of eight cohorts of patients treated with anti-PD-1 (n=290), anti-CTLA-4 (n=175), and combination anti-PD-1/anti-CTLA-4 (n=51) with RNA sequencing of pre-treatment tumor and clinical annotations. Stratifying by immune-high vs -low tumors, we found that surprisingly, high immune infiltrate was a biomarker for response to combination ICB, but not anti-PD-1 alone.

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  • - The study evaluated the efficacy of the MVA-BN-RSV vaccine, designed for older adults (≥60 years), against respiratory disease caused by RSV during the 2022-2023 season, involving 18,348 participants who received either the vaccine or a placebo.
  • - Vaccine efficacy was reported as 42.9% against RSV-associated lower respiratory tract disease (LRTD) with 3 symptoms and 59.0% against LRTD with 2 symptoms; however, the primary endpoint was not met due to the lower confidence interval being below a predetermined success criterion.
  • - The vaccine demonstrated mild to moderate side effects, showed promise by confirming immunogenicity (increased antibody responses), but provided
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  • This study aimed to evaluate long-term changes in Life's Essential 8 (LE8) components and their relationship with stroke risk in a large group of Chinese participants over a decade.
  • Researchers tracked 26,719 individuals without prior stroke history, identifying five different trajectory patterns of LE8 from 2006 to 2016 and documenting nearly 500 stroke cases by 2020.
  • Results showed that higher and more stable LE8 scores significantly reduced stroke risk, indicating that improved cardiovascular health can lessen stroke likelihood, even if starting levels were low.
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  • Scientists studied how a special type of MRI, called time-dependent diffusion MRI, can tell us about changes in the liver as it gets worse from fibrosis (a buildup of scar tissue) to cirrhosis (severe liver damage).
  • They ran tests on 60 rats with liver fibrosis and compared their results to five rats that were healthy, using advanced imaging techniques.
  • The MRI helped measure things like cell size and how much space the cells take up, showing that as liver fibrosis got worse, cells got smaller and more crowded, and these results matched well with direct measurements taken under a microscope.
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  • Human silencers are crucial for regulating gene expression during development, but their significance in cancer progression and the formation of 'super-silencers' is still unclear.
  • This study highlights how two components of the FGF18 gene can work together to create a super-silencer, and their knockout significantly increases FGF18 expression and affects cell characteristics.
  • The research demonstrates that specific inhibitors can disrupt these super-silencers, leading to reduced levels of certain genes and promoting anticancer effects, suggesting a potential therapeutic avenue for cancer treatment.
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  • The study investigated trends in liver cancer incidence in Hong Kong, Sweden, and the United States from the 1970s to 2021, using statistical methods to analyze data.
  • Hong Kong experienced a steady decrease in liver cancer rates, while Sweden and the U.S. saw increases, with the U.S. showing a recent decline since 2015 primarily in hepatocellular carcinoma cases.
  • The differences in trends across these regions might stem from varying causes and the effectiveness of preventive measures implemented in each population.
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Background: Three-dimensional (3D) magnetic resonance imaging (MRI) can be acquired with a high spatial resolution with flexibility being reformatted into arbitrary planes, but at the cost of reduced signal-to-noise ratio. Deep-learning methods are promising for denoising in MRI. However, the existing 3D denoising convolutional neural networks (CNNs) rely on either a multi-channel two-dimensional (2D) network or a single-channel 3D network with limited ability to extract high dimensional features.

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Background And Objectives: Systematic screening can help identify antiseizure medication (ASM)-associated adverse events (AEs) that may preclude patients from reaching effective doses or completing adequate trial periods. The Adverse Event Profile (AEP) is a self-completed instrument to identify the frequency of common AEs associated with ASM use. This study aimed to compare the AE profile of commonly used ASMs in adults with newly diagnosed focal epilepsy.

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Background: Adjuvant therapy with durvalumab, with or without tremelimumab, may have efficacy in patients with limited-stage small-cell lung cancer who do not have disease progression after standard concurrent platinum-based chemoradiotherapy.

Methods: In a phase 3, double-blind, randomized, placebo-controlled trial, we assigned patients to receive durvalumab at a dose of 1500 mg, durvalumab (1500 mg) plus tremelimumab at a dose of 75 mg (four doses only), or placebo every 4 weeks for up to 24 months. Randomization was stratified according to disease stage (I or II vs.

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Invasive cervical cancers (ICC), caused by HPV infections, have a heterogeneous molecular landscape. We investigate the detection, timing, and HPV type specificity of somatic mutations in 3929 HPV-positive exfoliated cervical cell samples from individuals undergoing cervical screening in the U.S.

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In the phase 3 Coronavirus Efficacy (COVE) trial (NCT04470427), post-dose two Ancestral Spike-specific binding (bAb) and neutralizing (nAb) antibodies were shown to be correlates of risk (CoR) and of protection against Ancestral-lineage COVID-19 in SARS-CoV-2 naive participants. In the SARS-CoV-2 Omicron era, Omicron subvariants with varying degrees of immune escape now dominate, seropositivity rates are high, and booster doses are administered, raising questions on whether and how these developments affect the bAb and nAb correlates. To address these questions, we assess post-boost BA.

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Background: There have been limited data on idiopathic intracranial hypertension (IIH) in Asians and there remain uncertainties whether a cerebrospinal fluid (CSF) pressure of 250 mm CSF is an optimum diagnostic cutoff. The aims of the present study included (1) characterization of IIH patients in Taiwan, (2) comparisons among different diagnostic criteria for IIH, and (3) comparisons between patients with CSF pressures of > 250 and 200-250 mm CSF.

Methods: This retrospective study involved IIH patients based on the modified Dandy criteria from two tertiary medical centers in Taiwan.

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Salt marshes represent a unique ecosystem at the marine-terrestrial boundary of shallow protected coastlines. Microarthropods form an essential component of soil food webs, but how they colonize new intertidal habitats is little understood. By establishing two experimental systems without animals, we investigated microarthropod colonization (1) at the seashore from the pioneer zone to the lower and upper salt marsh and (2) at the same tidal height on artificial islands 500 m from the seashore.

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The storage of hydrogen is key to its applications. Developing adsorbent materials with high volumetric and gravimetric storage capacities, both of which are essential for the efficient use of hydrogen as a fuel, is challenging. Here we report a controlled catenation strategy in hydrogen-bonded organic frameworks (RP-H100 and RP-H101) that depends on multiple hydrogen bonds to guide catenation in a point-contact manner, resulting in high volumetric and gravimetric surface areas, robustness and ideal pore diameters (~1.

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Article Synopsis
  • Targeted antineoplastic immunotherapies face challenges like resistance due to the absence of specific targets or loss of antigens, limiting their effectiveness in treating tumors.
  • Researchers developed an oncolytic rhabdovirus, VSVΔ51, designed to express a truncated version of the HER2 antigen, which allows for effective targeting of tumors using the antibody-drug conjugate trastuzumab emtansine.
  • The study also combines VSVΔ51-HER2T with a vaccinia virus for a dual-virus treatment approach, showing strong potential for curative effects in living models, suggesting a promising method for improving the tumor microenvironment and enhancing treatment options.
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