Publications by authors named "Ji-Won Han"

Assisted reproductive technologies (ART) to generate developmentally competent oocytes necessitates light exposure due to the use of microscopes. Previous studies in several species have reported that the wavelength of light during the light exposure period is a critical factor in embryo development. However, the effects of different light wavelengths on embryo development in pigs remain unexplored.

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This study explored associations between macular retinal nerve fiber layer (RNFL) thickness, brain volume, and cortical thickness in older adults. A total of 166 community-dwelling participants over 65 years old (mean 75.2 ± 5.

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Background: Phenotypic characterization of onion germplasm is requisite for designing breeding programs, and for meeting industrial processing, and marketing demands. Onion bulb morphology, and geometrical properties, which are the physical and spatial dimensions and shape characteristics influence consumer and market demand, as well as suitability for processing and mechanizing post-harvest handling. Many previous studies employed manual tools such as Vernier calipers for measurement of onion bulb parameters, which is time-consuming.

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Background And Aims: Atezolizumab plus bevacizumab (AB) has become the standard first-line treatment for advanced HCC. However, identifying reliable prognostic biomarkers remains a critical challenge. We aimed to develop a comprehensive scoring system to predict overall survival (OS) in advanced HCC patients receiving first-line AB.

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Background: Several serum cytokines have been proposed as biomarkers for predicting the outcomes of patients with hepatocellular carcinoma (HCC) receiving tyrosine kinase inhibitors. However, their role in atezolizumab plus bevacizumab (AB) treatment needs to be more elucidated.

Methods: We examined various serum cytokines, including interferon-γ (IFN-γ), interleukin-10 (IL-10), IL-12, IL-17, IL-2, IL-6, and tumor necrosis factor, using a Luminex cytokine multiplex assay before AB treatment in prospectively enrolled 116 AB-treatment patients for the derivation cohort and 54 patients for the external validation cohort.

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Aim: Suspected non-Alzheimer's disease pathophysiology (SNAP) is a condition characterized by neurodegeneration in the absence of amyloid beta (Aβ) deposition, posing challenges for early diagnosis. This study aimed to investigate the progression of neurodegeneration in SNAP through the analysis of brain MRI volume and texture.

Methods: The study included 449 amyloid-negative participants categorized into three groups: cognitively normal without neurodegeneration (N-CN), cognitively normal with neurodegeneration (N + CN), and MCI with neurodegeneration (N + MCI).

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Background & Aims: Predicting the long-term HBsAg seroclearance, an ideal endpoint, is relevant for decision-making regarding antiviral therapy for patients with chronic hepatitis B (CHB). This study aimed to identify predictors and develop a prediction model for HBsAg seroclearance in patients with HBeAg-negative CHB.

Methods: A total of 2,032 untreated HBeAg-negative patients who underwent a 2-year baseline observation period were enrolled.

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Background: Metabolic dysfunction-associated steatotic liver disease (MASLD) is a growing global health concern linked to increased risks of cardiovascular disease, chronic kidney disease (CKD), and premature mortality. Ginkgo biloba has shown potential therapeutic benefits in conditions characterized by metabolic dysfunction. This study aimed to evaluate the potential protective effects of Ginkgo biloba supplementation on overall survival (OS) and the incidence of cardiovascular and renal outcomes specifically in MASLD patients.

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Purpose: Given the limited data on the effectiveness of Atezolizumab plus Bevacizumab (Ate/Bev) in HCC patients with a Child-Pugh score (CPS) of 7, this study aims to evaluate the treatment's efficacy in this population and identify specific CPS 7 subgroups that may benefit from it.

Experimental Design: This study included patients with advanced HCC who received Ate/Bev as first-line therapy between September 2020 and December 2023 at seven university hospitals. The primary outcome was OS, while secondary outcomes included PFS and treatment response.

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: Liver and tumor-infiltrating T cells in hepatocellular carcinoma (HCC) are heterogeneous, comprising the CD69 tissue-resident T-cell and the CD69 circulating T-cell populations. However, the impact of these distinct T-cell populations on patient prognosis is unclear; hence, further studies are needed. : Tumor and distant liver tissues from 57 HCC patients with various chronic liver disease etiologies were analyzed.

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BackgroundDementia is a major public health challenge, yet existing prediction models often overlook sleep-related symptoms, despite their known links to cognitive decline.ObjectiveTo develop and validate a four-year Dementia Risk Score (DRS) incorporating self-reported sleep-related symptoms with demographic and clinical factors to predict all-cause dementia, including Alzheimer's disease.MethodsData from 3082 Korean adults aged 60-79 years were analyzed.

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Background: Metabolic dysfunction-associated steatotic liver disease (MASLD), previously known as non-alcoholic fatty liver disease (NAFLD), is an increasingly prevalent liver disorder.

Objectives: This study investigated the effect of smoking status on various clinical outcomes in MASLD and metabolic dysfunction and alcohol-associated liver disease (MetALD).

Design: This study is a retrospective cohort analysis utilizing data from the UK Biobank (Application ID: 117214).

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The spirooxindole framework is a privileged motif in numerous biologically significant natural products and has been demonstrated as a crucial core scaffold in a variety of medicinally significant compounds. Herein, we achieved a highly efficient enantioselective [3 + 2]-cycloaddition reaction of -alkoxy-4-oxo-acrylamides with isatin-derived ketimines. This method enabled the precise synthesis of chiral spirooxindole-imidazolidinone derivatives, which are notable for their intricate structures and the presence of chiral quaternary centers.

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Background: /Aims: This study aimed to evaluate the performance of the Model for End-Stage Liver Disease (MELD) 3.0 for predicting mortality and liver-related complications compared with the Child-Pugh classification, albumin-bilirubin (ALBI) grade, the MELD, and the MELD sodium (MELDNa) score.

Methods: We evaluated a multicenter retrospective cohort of incorporated patients with cirrhosis between 2013 and 2019.

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Introduction: Variability in response to atezolizumab plus bevacizumab (AB) treatment of hepatocellular carcinoma (HCC) underscores the critical need for the development of effective biomarkers. We sought to identify peripheral blood biomarkers reflecting response to AB treatment.

Methods: We analyzed dynamic changes in peripheral blood mononuclear cells from a prospective, multicenter cohort of 65 patients with HCC, using flow cytometry to evaluate the T-cell population before and 3 weeks after the first AB treatment.

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Metabolic dysfunction-associated steatotic liver disease (MASLD) is an emerging global health concern with limited therapeutic options. Multivitamins, widely consumed dietary supplements, have been proposed to modulate oxidative stress and inflammation, potentially impacting MASLD progression. However, their efficacy in reducing mortality and other complications in MASLD remains unclear.

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Liver tissue-resident memory T (T) cells play a pivotal role in hepatic immune responses. Their unique residence within liver sinusoids allow continuous antigen surveillance. In this review, we highlight the role of liver T cells in protective immunity and disease pathology.

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Backgrounds/aims: Hepatocellular carcinoma (HCC) is the sixth most common cancer and second leading cause of cancer-related deaths in South Korea. This study evaluated the characteristics of Korean patients newly diagnosed with HCC in 2016-2018.

Methods: Data from the Korean Primary Liver Cancer Registry (KPLCR), a representative database of patients newly diagnosed with HCC in South Korea, were analyzed.

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Onion (Allium cepa L.) is an economically valuable crop, but its large, repeat-enriched genome makes genome assembly difficult and limits molecular breeding and biological studies. Herein, we present a chromosomal-level reference genome assembly of the double-haploid onion line DHW30006, constructed by combining PacBio, Illumina, and Hi-C sequencing approaches.

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Gamma entrainment using 40 Hz sensory stimulation has shown promise in AD mouse models, but inconsistent results in AD patients, possibly due to interspecies and interindividual differences in center frequency (CF). This study aimed to investigate whether gamma rhythms entrained by visual stimulation at an individual's CF can spread better than those at other frequency conditions in older adults. We entrained gamma rhythms in 32 cognitively normal older participants using light flickering at 32 Hz, 34 Hz, 36 Hz, 38 Hz, and 40 Hz.

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Frank's sign (FS) is a diagnostic marker associated with aging and various health conditions. Despite its clinical significance, there lacks a standardized method for its identification. This study aimed to develop a deep learning model for automated FS detection in 3D facial images derived from MRI scans.

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Background & Aims: The impact of vitamin D deficiency (VDD) on cognition remains controversial. Evidences suggest that variability based on apolipoprotein E (APOE) ε4 status and gender, given APOE ε4's influence on vitamin D metabolism and women's heightened vitamin D sensitivity. We investigated the interplay between APOE ε4, gender, and VDD in cognitive decline among older adults.

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Hepatitis B virus (HBV) can cause chronic infections, significantly increasing the risk of death from cirrhosis and hepatocellular carcinoma (HCC). A key player in chronic HBV infection is covalently closed circular DNA (cccDNA), a stable episomal form of viral DNA that acts as a persistent reservoir in infected hepatocytes and drives continuous viral replication. Despite the development of several animal models, few adequately replicate cccDNA formation and maintenance, limiting our understanding of its dynamics and the evaluation of potential therapeutic interventions targeting cccDNA.

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Long-term consumption of erythritol, a widely used sugar substitute, has been associated with increased risks of thrombosis and cardiometabolic diseases. In this study, we investigated the effects and mechanisms of allulose in mitigating these risks compared to erythritol using the clusterProfiler tool in R (version 4.12.

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