Publications by authors named "Shin Eun"

Background And Aims: We sought to develop a minimally-invasive, robust, accessible nonendoscopic strategy to diagnose Barrett's esophagus (BE), esophageal adenocarcinoma (EAC), and its immediate precursor lesion, high-grade dysplasia (HGD) based on methylated DNA biomarkers applied to a retrievable sponge-capsule device in a cohort representative of the BE population (i.e., mostly short-segment, non-dysplastic BE, NDBE).

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Purpose: Ninjury-induced protein 1 (Ninj1) is associated with inflammation and tumor progression and shows increased expression in various cancers. This study aimed to investigate the role of Ninj1 in colitis-associated colorectal cancer (CRC) by focusing on its interaction with 17β-estradiol (E2).

Materials And Methods: Using an azoxymethane (AOM)/dextran sodium sulfate (DSS) mouse model of colitis-associated CRC, wild-type (WT) and Ninj1 knockout (KO) male mice were treated with or without E2.

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Many anatomical and physiological features of cortical circuits, ranging from the biophysical properties of synapses to the connectivity patterns among different neuron types, exhibit consistent variation along the hierarchical axis from sensory to association areas. Notably, the temporal correlation of neural activity at rest, known as the intrinsic timescale, increases systematically along this hierarchy in both primates and rodents, analogous to the increasing scale and complexity of spatial receptive fields. However, how the timescales for task-related activity vary across brain regions and whether their hierarchical organization appears consistently across different mammalian species remain unexplored.

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Aim To assess an optimal long-term antiplatelet strategy in patients at both high ischaemic and bleeding risks after percutaneous coronary intervention (PCI). Methods and results Patients both at high ischaemic and bleeding risks were eligible for inclusion. We excluded patients with any ischaemic and major bleeding complications during the mandatory period of dual antiplatelet therapy (DAPT).

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Cellular metabolism-related epigenetic modulation plays a pivotal role in the maintenance of cellular homeostasis. Nicotinamide N-methyltransferase (NNMT) serves as a crucial link between cellular metabolism and epigenetics by catalyzing nicotinamide methylation using the universal methyl donor S-adenosyl-L-methionine. This direct connection bridges the methylation-mediated one-carbon metabolism with nicotinamide adenine dinucleotide levels.

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Background And Objectives: Among various emerging catheter-based treatments for severe tricuspid regurgitation (TR), the spacer device can reduce the regurgitation orifice without manipulating the valve leaflet. However, its clinical application has been hampered by traumatic anchoring to the myocardium and the coaxial alignment of the balloon resulting in insufficient TR reduction. This study aimed to evaluate the early-stage safety, technical feasibility, and preliminary efficacy of the novel atraumatic vertical spacer in patients with isolated severe TR.

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: Preclinical and clinical data indicate that chemoradiotherapy (CRT) in combination with checkpoint inhibitors may prime an anti-tumor immunological response in esophageal cancer. However, responses to neoadjuvant therapy can vary widely and the key biomarkers to determine response remain poorly understood. The fecal microbiome is a novel and potentially modifiable biomarker of immunotherapy response, and both fecal and tumor microbes have been found to associate with outcomes in esophageal cancer.

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This study investigated the role of Ninjurin1 (Ninj1), encoding a small transmembrane protein, in colitis-associated colon tumorigenesis in relation to sex hormones. Male and female wild-type (WT) and Ninj1 knockout (KO) mice were treated with azoxymethane (AOM) and dextran sulfate sodium (DSS), with or without testosterone propionate (TP). At week 2 (acute colitis stage), Ninj1 KO exhibited an alleviation in the colitis symptoms in both male and female mice.

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EGFR mutations are a major prognostic factor in lung adenocarcinoma. However, current detection methods require sufficient samples and are costly. Deep learning is promising for mutation prediction in histopathological image analysis but has limitations in that it does not sufficiently reflect tumor heterogeneity and lacks interpretability.

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Neural consequences of social disparities are not yet rigorously investigated. How socioeconomic conditions influence children's connectome development remains unknown. This paper endeavors to gauge how precisely the connectome structure of the brain can predict an individual's social environment, thereby inversely assessing how social influences are engraved in the neural development of the Adolescent brain.

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Lupus is characterized by the autoantibodies against nuclear Ags, underscoring the importance of identifying the B cell subsets driving autoimmunity. Our research focused on the mitochondrial activity and CXCR4 expression in CD11c B cells from lupus patients after stimulation with a TLR9 agonist, CpG-oligodeoxyribonucleotide (ODN). We also evaluated the response of CD11c B cells in ODN-injected mice.

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Hepatic stellate cells (HSCs) play a role in hepatic fibrosis and sphingosine kinase (SphK) is involved in biological processes. As studies on the regulatory mechanisms and functions of SphK in HSCs during liver fibrosis are currently limited, this study aimed to elucidate the regulatory mechanism and connected pathways of SphK upon HSC activation. The expression of SphK1 was higher in HSCs than in hepatocytes, and upregulated in activated primary HSCs.

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Many anatomical and physiological features of cortical circuits, ranging from the biophysical properties of synapses to the connectivity patterns among different neuron types, exhibit consistent variation along the hierarchical axis from sensory to association areas. Notably, the scale of temporal correlation of neural activity at rest, known as the intrinsic timescale, increases systematically along this hierarchy in both primates and rodents, analogous to the growing scale and complexity of spatial receptive fields. However, how the timescales for task-related activity vary across brain regions and whether their hierarchical organization appears consistently across different mammalian species remain unexplored.

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Article Synopsis
  • Cellulose nanocrystals (CNCs) are strong, biocompatible nanomaterials that can enhance the mechanical properties of polymer matrices, making them useful in applications like self-healing polymers and shape memory switches.
  • A study created a polytrimethylene ether glycol-based thermoplastic polyurethane (TPU)/CNC composite using in-situ polymerization, examining the effects of different CNC concentrations on the composite's properties.
  • Results showed that adding CNC improved the polymer's thermal stability and tensile strength significantly, with the 2 wt% CNC composite achieving the best performance in mechanical tests and the fastest shape recovery time.
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  • - Inverted inorganic CsPbI perovskite solar cells (PSCs) show potential for advanced photovoltaics due to their strong thermal/photo-stability but struggle with performance and stability compared to n-i-p counterparts, mainly due to poor energy alignment and defects.
  • - The study introduces a 0D CsPbBr layer as a surface capping to improve the performance of CsPbI PSCs by enhancing charge extraction and reducing energy losses from non-radiative recombination.
  • - This modification results in the highest recorded power conversion efficiency (PCE) for CsPbI-based inverted PSCs at 21.03% for a unit cell and good stability, maintaining 92.48% efficiency after 1000
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The proximity of a pancreas head tumor to the duodenum often limits delivery of an ablative dose of radiation therapy. This study evaluated the feasibility and safety of using an injectable polyethylene glycol (PEG) hydrogel between the head of the pancreas and duodenum. In a multi-site feasibility cohort study of patients with localized pancreatic cancer, PEG hydrogel was injected under endoscopic ultrasound guidance to temporarily position the duodenum away from the pancreas.

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  • Pancreatic ductal adenocarcinoma (PDAC) is a highly fatal cancer with most cases being diagnosed at an advanced stage, and there's no recommended population-wide screening despite some benefits from monitoring high-risk individuals.
  • This study aimed to compare survival rates of patients who detected their PDAC through surveillance with a national database, using data from the Cancer of the Pancreas Screening program and matched SEER patients.
  • Results showed that individuals in the screening group were diagnosed at an earlier stage with smaller tumor sizes compared to the control group, but overall survival benefits remain uncertain and require further investigation.
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  • A significant increase in nonaccredited advanced endoscopy fellowship programs (AEFPs) has led to a need for defining "high-quality" standards due to the rising complexity of interventional endoscopy procedures.
  • A consensus process, using the RAND UCLA appropriateness method, was employed to establish quality indicators for AEFPs across six categories related to training and practice.
  • After thorough reviews and expert feedback, 37 out of 89 proposed quality indicators were identified as appropriate, setting a foundation for improved accreditation standards in AEFPs.
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Despite considerable increases in road freight traffic and associated crashes over the past decade, our understanding of their spatial distribution remains limited. This is concerning because freight vehicle crashes often lead to fatal and severe injuries. This study focuses on Seoul, South Korea and contributes to the literature by investigating the patterns and sources of spatial inequity in freight crashes.

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  • This study compares the indicators of access to orphan drugs in South Korea, the USA, the EU, and Japan, focusing on data from 169 orphan drugs designated between 2012 and 2021.
  • The research found that orphan drug approval rates were highest in South Korea and Japan, with the USA approving the most drugs (87) and significant differences in approval times, drug lag times, and designation gaps across these regions.
  • The authors conclude that improving access to treatments for rare diseases requires better regulatory policies that support early research, development, and commercialization of orphan drugs.
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  • The study aimed to evaluate an immunohistochemical panel and K-ras mutation testing for diagnosing pancreatic solid lesions from endoscopic ultrasound-guided biopsies, especially in difficult cases.
  • It involved analyzing 96 biopsy samples using these methods, showing that K-ras mutation provided the highest diagnostic accuracy, particularly in histologically inconclusive specimens.
  • The findings confirmed that a combination of specific markers, including K-ras, significantly improves diagnostic performance, proving effective in differentiating pancreatic ductal adenocarcinoma from other lesions.
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  • This study investigates how vaccination affects the ability to neutralize different variants of SARS-CoV-2, particularly delta and omicron, in COVID-19 infected individuals.
  • Data from 97 confirmed COVID-19 cases revealed that vaccinated individuals had significantly better neutralizing activity against various variants compared to unvaccinated individuals.
  • The findings suggest that vaccination, especially when followed by breakthrough infections, enhances the immune response and may inform strategies for optimizing vaccination against evolving viral strains.
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Gastroesophageal cancer dynamics and drivers of clinical responses with immune checkpoint inhibitors (ICI) remain poorly understood. Potential synergistic activity of dual programmed cell death protein 1 (PD-1) and lymphocyte-activation gene 3 (LAG-3) inhibition may help improve immunotherapy responses for these tumors. We report a phase Ib trial that evaluated neoadjuvant nivolumab (Arm A, n = 16) or nivolumab-relatlimab (Arm B, n = 16) in combination with chemoradiotherapy in 32 patients with resectable stage II/stage III gastroesophageal cancer together with an in-depth evaluation of pathological, molecular and functional immune responses.

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Introduction: Despite evidence showing higher fatality rates in freight-related crashes, there has been limited exploration of their spatial distribution and factors associated with such distribution. This gap in the literature primarily stems from the focus of existing studies on micro-level factors predicting the frequency or severity of injuries in freight crashes. The present study delves into the factors contributing to freight crashes at the neighborhood level, particularly focusing on different types of freight crashes: collisions involving a freight vehicle and a passenger vehicle, crashes between freight vehicles, and freight vehicle-non-motorized crashes.

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