Publications by authors named "Seung-Yong Shin"

Importance: The association between smoking cessation and cardiovascular disease (CVD) risk in relation to cumulative smoking exposure remains poorly understood.

Objective: To evaluate the associations among smoking cessation, lifetime smoking burden, and CVD risk according to the number of years elapsed after smoking cessation.

Design, Setting, And Participants: This retrospective cohort study of the Korean National Health Insurance Service database investigated smoking duration and intensity between January 2006 and December 2008.

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  • A study was conducted to explore Korean clinicians' knowledge, attitudes, and practices related to using neuromodulators and psychiatric treatments for functional gastrointestinal disorders (FGIDs).
  • The survey included 451 clinicians from various hospital tiers, revealing that while a high percentage recognized the need for these treatments, many were unfamiliar with prescribing neuromodulators and referred few patients for psychiatric care.
  • Results indicated a significant gap in knowledge and prescribing practices between primary care clinicians and gastroenterologists, highlighting the need for further education on this topic.
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  • The study focused on analyzing changes in gut microbiota during anti-TNF-α therapy (adalimumab) in patients with ulcerative colitis (UC), noting that previous research had limited insights on long-term effects.
  • Results showed that the composition of gut microbiota varied significantly based on disease severity, with distinct microbial communities observed in UC patients compared to healthy individuals.
  • Clinical remission was linked to specific microbiota changes, including a reduction in some bacteria and an increase in beneficial ones, suggesting these microbial shifts could help predict treatment responses to adalimumab.
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Background And Aim: Corticosteroid use is a risk factor for avascular necrosis (AVN) and inflammatory bowel disease (IBD) patients are often exposed to higher corticosteroid usage. We investigated the epidemiology and risk factors of AVN in a nationwide population-based cohort of IBD patients.

Methods: Patients newly diagnosed with IBD were identified, and sex- and age-matched participants from the general population were selected in a 1:3 IBD:non-IBD ratio.

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Background: Data on off-label reduced dose risk among patients with atrial fibrillation (AF) who qualify for a single-dose reduction of apixaban is scarce.

Objectives: We prospectively assessed apixaban dosing and clinical characteristics in AF patients meeting a dose reduction criterion.

Methods: The multicentre, prospective cohort study, the efficAcy and Safety of aPixaban In REal-world practice in Korean frail patients with AF (ASPIRE), encompasses patients with AF who met the criteria for a single-dose reduction of apixaban and were given varying doses of apixaban, either the on-label standard dose or the off-label reduced dose.

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Numerous studies have been dedicated to genetically engineering crops to enhance their yield and quality. One of the key requirements for generating genetically modified plants is the reprogramming of cell fate. However, the efficiency of shoot regeneration during this process is highly dependent on genotypes, and the underlying molecular mechanisms remain poorly understood.

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  • The study developed prediction models to assess clinical remission in ulcerative colitis patients treated with adalimumab by using Fourier transform-infrared (FT-IR) spectroscopy and machine learning (ML) algorithms.
  • A total of 62 UC patients and 30 healthy controls were analyzed through fecal samples, with results showing that specific ML models achieved high accuracy in predicting both short-term and long-term remission.
  • This research is groundbreaking as it combines noninvasive FT-IR analysis with machine learning to create simple and effective tools that could enhance personalized treatment strategies for UC patients.
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Background: There is limited research exploring the behavioral intentions, beliefs, and application of theoretical models in relation to self-care in patients with atrial fibrillation (AF).

Objective: This study aimed to identify the factors that influence self-care behavior in patients with AF.

Methods: The study used an integrated behavioral model and collected data from 216 patients diagnosed with AF.

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Background/aims: We aimed to evaluate the histologic features predictive of prognosis and correlate them with endoscopic findings in patients with ulcerative colitis (UC) having complete or partial mucosal healing (MH).

Methods: We prospectively collected and reviewed data from patients with UC who underwent colonoscopy or sigmoidoscopy with biopsy. Complete and partial MH were defined as Mayo endoscopic subscores (MESs) of 0 and 1, respectively.

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Introduction: Atrial fibrillation (AF) is the most common arrhythmia, contributing significantly to morbidity and mortality. In a previous study, we developed a deep neural network for predicting paroxysmal atrial fibrillation (PAF) during sinus rhythm (SR) using digital data from standard 12-lead electrocardiography (ECG). The primary aim of this study is to validate an existing artificial intelligence (AI)-enhanced ECG algorithm for predicting PAF in a multicenter tertiary hospital.

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Objective: The study was conducted to investigate the effect of correct occlusion of the left atrial appendage (LAA) on intracardiac blood flow and thrombus formation in patients with atrial fibrillation (AF) using four-dimensional (4D) flow magnetic resonance imaging (MRI) and three-dimensional (3D)-printed phantoms.

Materials And Methods: Three life-sized 3D-printed left atrium (LA) phantoms, including a pre-occlusion (i.e.

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  • The study investigated stroke risk and bleeding risks in patients with atrial fibrillation (AF) who had non-gender CHADS-VASc scores of 0-1, focusing on the effectiveness of different antithrombotic treatments (ATT).
  • A multi-center cohort of 2,465 patients evaluated the outcomes of single antiplatelet (SAPT), vitamin K antagonists (VKA), and non-VKA oral anticoagulants (NOAC), using an ABCD scoring system for better risk stratification.
  • Results showed that NOAC provided a significant net clinical benefit over SAPT and VKA for patients with an ABCD score of 1 or more, while no benefit was found for patients with an
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Background: Leaf explants are major materials in plant tissue cultures. Incubation of detached leaves on phytohormone-containing media, which is an important process for producing calli and regenerating plants, change their cell fate. Although hormone signaling pathways related to cell fate transition have been widely studied, other molecular and physiological events occurring in leaf explants during this process remain largely unexplored.

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  • Researchers studied the effects of adalimumab treatment on metabolite and lipid profiles in fecal samples from ulcerative colitis (UC) patients and healthy controls, aiming to predict clinical remission outcomes.
  • They found significant differences in fecal metabolites between UC patients and healthy individuals, with remitters displaying metabolite levels more similar to healthy controls after treatment, whereas lipid profiles were less indicative of treatment outcomes.
  • The study developed a prediction model for long-term remission in male UC patients based on lipid biomarkers, outperforming traditional clinical markers.
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Patients frequently report that stress causes or exacerbates gastrointestinal (GI) symptoms, indicating a functional relationship between the brain and the GI tract. The brain and GI tract are closely related embryologically and functionally, interacting in various ways. The concept of the brain-gut axis was originally established in the 19th and early 20th centuries based on physiological observations and experiments conducted in animals and humans.

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Anticoagulation with warfarin in Asian patients with atrial fibrillation (AF) often has been decreased as an international normalized ratio (INR) of prothrombin time 1.6-2.6 due to fear of bleeding, although universal criteria recommend an INR of 2.

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Background: Escherichia coli (E.coli) infection has been proposed to play an important role as an initial trigger in the development of autoimmunity via molecular mimicry. However, there has been no preliminary cohort study to establish the association of E.

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Plant cells in damaged tissue can be reprogrammed to acquire pluripotency and induce callus formation. However, in the aboveground organs of many species, somatic cells that are distal to the wound site become less sensitive to auxin-induced callus formation, suggesting the existence of repressive regulatory mechanisms that are largely unknown. Here we reveal that submergence-induced ethylene signals promote callus formation by releasing post-transcriptional silencing of auxin receptor transcripts in non-wounded regions.

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Background/aims: We aim to evaluate the differences in the microbiome of responders and non-responders, as well as predict the response to probiotic therapy, based on fecal microbiome data in patients with diarrhea-predominant irritable bowel syndrome (IBS-D).

Methods: A multi-strain probiotics that contains (KCTC 11906BP), (KCTC11867BP), (KCTC 11868BP), (KCTC 11858BP), (KCTC 11903BP), (KCTC 11860BP), and (KCTC 11870BP) were used. Patients were categorized into probiotic and placebo groups, and fecal samples were collected from all patients before and at the end of 8 weeks of treatment.

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Purpose: Atrial fibrillation (AF) patients with low to intermediate risk, defined as non-gender CHADS-VASc score of 0-1, are still at risk of stroke. This study verified the usefulness of ABCD score [age (≥60 years), B-type natriuretic peptide (BNP) or N-terminal pro-BNP (≥300 pg/mL), creatinine clearance (<50 mL/min/1.73 m²), and dimension of the left atrium (≥45 mm)] for stroke risk stratification in non-gender CHADS-VASc score 0-1.

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A significant mismatch between proximal and distal reference lumen diameters of the target lesion may pose challenges during percutaneous coronary intervention (PCI) and therefore influence the outcomes. We investigated total 1706 lesions underwent IVUS guided percutaneous coronary intervention, that were divided into 2 groups, including 411 lesions in Mismatch group and 1295 lesions in Non-Mismatch group. After propensity score matching, 397 lesions in each group were selected for final data set.

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