Publications by authors named "Sujin Lee"

Background: Temperature is one of the essential abiotic factors required for honey bee survival and pollination. Apart from its role as a major contributor to colony collapse disorder (CCD), it also affects honey bee physiology and behavior. Temperature-stress induces differential expression of genes related to protein synthesis and metabolic regulation, correlating with impaired gland function.

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: While depression is associated with an increased risk of Alzheimer's dementia (AD), traditional AD-related biomarkers, such as amyloid-beta, have shown limited predictive value for late-life depression. Oxidative stress has emerged as a potential indicator given its shared role in both depression and dementia. This study investigated the longitudinal relationship between oxidative stress biomarkers and risk of dementia in patients with depression.

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Background: This study aimed to establish the optimal cutoff values for visual amyloid positivity using standardized uptake value ratios (SUVRs) in [F]flutemetamol (FMM) positron emission tomography (PET) imaging. Given the variability in amyloid assessment, our goal was to determine cutoff values that enhance diagnostic accuracy and assist clinicians in reliably identifying amyloid positivity.

Results: The identified cutoff values for visual amyloid positivity were > 1.

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Severe fever with thrombocytopenia syndrome (SFTS) is an acute febrile illness caused by the SFTS virus (SFTSV). We conducted this study to propose a scientific evidence-based treatment that can improve prognosis through changes in viral load and inflammatory cytokines according to the specific treatment of SFTS patients. This prospective and observational study was conducted at 14 tertiary referral hospitals, which are located in SFTS endemic areas in Korea, from 1 May 2018 to 31 October 2020.

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Background/objectives: Calculating the radiation dose from CT in F-PET/CT examinations poses a significant challenge. The objective of this study is to develop a deep learning-based automated program that standardizes the measurement of radiation doses.

Methods: The torso CT was segmented into six distinct regions using TotalSegmentator.

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Article Synopsis
  • The review discusses a technique for visualizing demagnetization fields in NdFeB thin foils using electron holography, which is essential for understanding magnetic flux density.
  • The resulting maps from this method align well with micromagnetic simulations, shedding light on coercivity in these materials.
  • Additionally, it explores the use of a wavelet hidden Markov model for reducing noise in the phase images, improving the accuracy of magnetic characterization across various magnetic materials.
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Filoviruses, including Ebola, Marburg, Sudan, and Taï Forest viruses, are zoonotic pathogens that can cause severe viral hemorrhagic fever and death. Developing vaccines that provide durable, broad immunity against multiple filoviruses is a high global health priority. In this Phase 1 trial, we enrolled 60 healthy U.

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The allylation of isochromans at the α-position aerobic DDQ (2,3-dichloro-5,6-dicyano-1,4-benzoquinone) catalysis is described. This process involves the DDQ oxidation of various isochromans under mild conditions to generate oxocarbenium intermediates, which are effectively stabilized in equilibration in the presence of acid before undergoing allylation. Molecular oxygen and -butyl nitrite are employed as an environmentally benign oxidant and mediator, respectively, in the catalytic cycle.

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Echinochrome A (EchA), a marine-derived natural product, has shown promise in treating cardiovascular and inflammatory diseases due to its antioxidant and anti-inflammatory properties. However, its cardiac safety remains underexplored. In this study, we utilized human induced pluripotent stem cell-derived cardiac organoids (hCOs) to validate their ability to model the cardiac safety profile of EchA in a human-relevant system.

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To emulate a visual perception system, a bismuth telluride (BiTe)/indium-gallium-zinc oxide (IGZO) heterostructure is introduced for optoelectronic neuromorphic transistors (ONTs). Amorphous IGZO is applied as a channel layer to exhibit low off-current, high mobility, and persistent photoconductivity, enabling light-stimulated neuromorphic characteristics. The atomic ratio of In/Ga/Zn was 9.

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Accurate detection of glucose and insulin is crucial for early diagnosis, classification, and timely prevention of diabetes. In this study, we present a novel surface-enhanced Raman scattering (SERS) aptasensor for glucose and insulin detection. The SERS aptasensor is composed of gold bipyramidal nanoparticles (Au BPs), SH-aptamer-methylene blue (MB), and thiolated polyethylene glycol (SH-PEG).

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  • Microbial exopolysaccharides (EPSs) are biodegradable, biocompatible biopolymers with advantages in mass production and reproducibility; the EPS from strain VF39 features a unique structure rich in sugars and functional groups.
  • A mutant EPS, VF39 #54, was developed through NTG mutagenesis, showing improved physicochemical and rheological traits, including a significant increase in molecular weight and better thermal stability compared to the wild-type.
  • The VF39 #54 EPS, which is non-toxic and maintains consistent viscosity under various conditions, has promising applications in food, pharmaceuticals, and cosmetics as thickeners and stabilizers.
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Agarases produce agar oligosaccharides with various structures exhibiting diverse physiological activities. α-Neoagaro-oligosaccharide hydrolase (α-NAOSH) specifically cleaves even-numbered neoagaro-oligosaccharides, producing 3,6-anhydro-l-galactose (l-AHG) and odd-numbered agaro-oligosaccharides (OAOSs). In this study, α-NAOSH from the agar-degrading marine bacterium JEA5 (Gaa117) was purified and characterized using an expression system to produce OAOSs and determine their bioactivity.

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The SWItch3-related gene (SRG3) is a core component of ATP-dependent SWI/SNF complexes, which are crucial for regulating immune cell development and function (e.g., macrophages and CD4 T cells), embryonic development, and non-immune cell differentiation.

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This study evaluated the effects of adding waste PET fibers on the mechanical properties and chloride ion penetration of latex-modified ultra-rapid hardening cement concrete used for emergency road pavement repairs. The primary experimental variable was the content of waste PET fibers. The mechanical properties of the concrete were evaluated through compressive strength, flexural strength, and splitting tensile strength tests.

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Vascular aging encompasses structural and functional changes in the vasculature, significantly contributing to cardiovascular diseases, which are the leading cause of death globally. The incidence and prevalence of these diseases increase with age, with most morbidity and mortality attributed to myocardial infarction and stroke. Diagnosing and intervening in vascular aging while understanding the mechanisms behind age-induced vascular phenotypic and pathophysiological alterations offers the potential for delaying and preventing cardiovascular mortality in an aging population.

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Aims: To identify the components and characteristics of disaster risk reduction education for people with disabilities and to explore the contents and results of disaster risk reduction education.

Design: A systematic review and narrative synthesis.

Review Methods: The review was conducted in accordance with Tawfik's guidelines and followed the reporting standards outlined in the Preferred Reporting Items for Systematic reviews and Meta-Analysis.

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Aims: To explore the clinical factors and urinary metabolites that predict biopsy-confirmed diabetic nephropathy (DN) in patients with type 2 diabetes mellitus (T2DM).

Methods: Data from the medical records of 126 patients with T2DM who underwent kidney biopsy between January 2010 and October 2020 at a single-center were retrospectively reviewed to investigate the clinical factors that predict DN. Urine samples were collected to perform urine metabolomics in patients with T2DM divided by biopsy-confirmed DN, immunoglobulin A, and membranous nephropathy, and a control group of healthy participants.

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Article Synopsis
  • - This study explored what influences people’s perceptions of their sleep issues and the necessity for treatment, using data from a sleep clinic over four years.
  • - It found that insomnia symptoms, especially difficulties maintaining sleep, significantly impacted both how concerned patients were about their sleep and their desire for treatment, with younger individuals and those experiencing daily dysfunction being more ready to seek help.
  • - The study concluded that while personal experiences of sleep problems are crucial in managing sleep issues, actual sleep study results (polysomnography) didn’t correlate well with patients’ concerns or treatment needs, emphasizing the importance of addressing subjective sleep complaints.
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  • Nitrification, a crucial part of the nitrogen cycle, is mainly driven by ammonia-oxidizing microorganisms, particularly ammonia-oxidizing archaea (AOA), which have unique traits influencing their adaptations.
  • The study conducted comparative genomics on 39 AOA genomes, revealing the absence of typical ammonium transporters, suggesting distinctive physiological traits for AOA compared to other nitrifiers.
  • Findings indicate that AOA may utilize a different outer cell structure, providing insights into their ecological roles and adaptations in terrestrial ecosystems, and highlighting their significance in nitrogen cycling and environmental impacts like eutrophication and greenhouse gas emissions.
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Aims: To identify the use of telehealth for people with disabilities in community or primary care settings and to explore effective telehealth interventions for this group.

Design: Systematic literature review and narrative synthesis.

Data Sources: The literature search was conducted in January 2024 using five electronic databases including PubMed, EMBASE, CINAHL, Cochrane library and PsycINFO.

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Objectives: This study aimed to investigate the potential relationship between sleep quality and perceived noise.

Methods: A cross-sectional study involving 185,246 adults (81,854 men and 103,392 women) participating in the 2018 Korea Community Health Survey (KCHS) was conducted. Subjective sleep quality was assessed using the Pittsburgh Sleep Quality Index (PSQI), while perceived noise pollutants were categorized into two groups: perceived noise pollution (n = 43,638) and perceived non-noise pollution (n = 141,608).

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Article Synopsis
  • * Using the K-FRAIL scale, results showed that frailty was significantly higher (7.6%) in the asthma group compared to the non-asthma group (4.9%), particularly in areas like resistance, ambulation, and illness severity.
  • * After accounting for various factors, the study found that having asthma was associated with a 45% increased risk of frailty, indicating a potential connection that warrants further investigation.
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Exosomes are nanovesicles 30-150 nm in diameter released extracellularly. Those isolated from human body fluids reflect the characteristics of their cells or tissues of origin. Exosomes carry extensive biological information from their parent cells and have significant potential as biomarkers for disease diagnosis and prognosis.

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is a perennial herb found in coastal sand dunes throughout East Asia. This herb has been reported to have hepatoprotective, immunomodulatory, antioxidant, antibacterial, antifungal, anti-inflammatory, and anticancer activities. It may be effective against hepatocellular carcinoma (HCC).

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