Publications by authors named "Han S Lee"

Severe fever with thrombocytopenia syndrome (SFTS) is a potentially fatal infectious disease if not diagnosed and treated promptly. Typical clinical features include fever, thrombocytopenia, and lymphadenopathy. However, we encountered a case of SFTS in a 60-year-old male who initially did not exhibit these hallmark symptoms.

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Non-alcoholic fatty liver disease (NAFLD), characterized by hepatic steatosis and hepatitis, is the most frequently encountered complication of type 2 diabetes mellitus (T2DM). Due to its hepatoprotective, anti-obesity, antioxidant, and anti-inflammatory effects, () larvae have been used as traditional medicine to treat liver diseases since ancient times. Therefore, this study was conducted to confirm the positive effect of fermented larvae (FPB) on NAFLD.

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We conducted a descriptive-analytical cross-sectional study using an online survey to explore the personality traits of volunteers in Lebanon and examine their relationship with work engagement, psychological status, resilience, and public service motivation. A total of 270 volunteers were recruited through social media platforms. The survey included general questions about volunteering, Utrecht Work Engagement Scale-9 items (UWES-9), the Big Five Personality Inventory-10 (BFPI-10), the Patient Health Questionnaire-9 (PHQ-9), the Generalized Anxiety Disorder-7 (GAD-7), the Public Service Motivation (PSM), and the Connor-Davidson Resilience Scale-2 (CD-RISC2).

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Although patients with anaplastic thyroid cancer (ATC) generally have a poor prognosis and there are currently no effective treatment options, survival and response to therapy vary between patients. Genomic and transcriptomic profiles of ATC have been reported; however, a comprehensive study of the tumor microenvironment (TME) of ATC is still lacking. This study aimed to elucidate the TME characteristics associated with ATC and their prognostic implications.

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A radiopaque hydrogel-in-liposome (RHL) system was developed for micro-computed tomography (μCT) imaging of tumor tissue and simultaneous delivery of a cytotoxic agent. Iopamidol (IPD) and doxorubicin (DOX) were incorporated as the CT contrast and anti-cancer agents, respectively. The presence of a polyethylene glycol hydrogel core in the liposomes was confirmed via attenuated total reflectance Fourier transform infrared, proton nuclear magnetic resonance, and selective solvent extraction.

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Chinese hamster ovary (CHO)-K1 cells are widely used in biomedical research relevant to cancer, toxicity screening, and viruses, as well as in the production of recombinant proteins for biopharmaceuticals. In this study, liquid chromatography (LC)-electrospray ionization (ESI)-higher energy collisional dissociation (HCD)-tandem mass spectrometry (MS/MS) was used to characterize the surface and lysate N-glycans of CHO-K1 cells and analyze their structures. The relative quantity (%) of each N-glycan and absolute quantity (pmol) of total N-glycans were also obtained.

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Nervous necrosis virus (NNV) of the genus Betanodavirus is one of the simplest RNA viruses pathogenic to a wide range of fish species. We established the SeGF, SeGE-22 and SeGB cell lines persistently infected with NNV (PI-SeGF, PI-SeGE-22 and PI-SeGB cells) by repeatedly subculturing the cells that survived NNV infection. The PI-SeGF and PI-SeGE-22 cells continued to stably yield NNV in culture fluids at 10 to 10 median tissue culture infectious dose (TCID)/ml even after 30-50 subcultures.

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Phosvitin (PV), a highly phosphorylated protein found in chicken egg yolk, possesses multiple bioactivities (including anti-aging and anticancer) and functional properties (including emulsifier and metal-binding capacities). The carbohydrate moiety attached to PV has been reported, but its N-glycan structure is unknown. In this study, we performed structural and quantitative analyses of N-glycans from PV using liquid chromatography-tandem mass spectrometry (MS/MS).

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: In March 2018, a tertiary teaching hospital launched a medical hospitalist team. This study presents the clinical characteristics and outcomes of medical hospitalist care and reveals the relationship between them. : This study included 4003 patients first admitted to the hospitalist team via emergency room and then discharged from the hospitalist team between March 2018 and November 2022.

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Article Synopsis
  • The primary treatment for cervical dystonia (CD) symptoms involves botulinum toxin type A (BoNTA) injections, but comparing the safety of different BoNTAs is challenging due to non-interchangeable activity units.
  • A study examined the relationship between the incidence of dysphagia and muscle weakness—key adverse effects—across BoNTAs approved in the US, finding that adverse drug reaction rates correlate strongly with the core neurotoxin content.
  • DaxibotulinumtoxinA (DAXI) showed a lower core neurotoxin amount compared to conventional BoNTAs, indicating a potentially better safety profile and fewer adverse effects for patients with CD.
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Mitochondrial dysfunction in the thyroid due to defective mitophagy has been observed in lymphocytic thyroiditis (LT). However, the effect of impaired mitophagy on the pathogenesis of LT is not well understood. The aim of this study is to investigate the role of mitophagy dysregulation in the thyroid gland.

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Nervous necrosis virus (NNV) in the genus Betanodavirus (Nodaviridae) is highly lethal to a wide range of fish species. Although striped snakehead (SSN-1) cell lines have been widely used for culturing NNV, cell lines persistently infected (PI) with NNV have only recently been established. This study investigated the infectivity titers of intracellular and extracellular NNV and the associated aggregation states.

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  • MIN6, a mouse pancreatic beta cell line, is crucial for diabetes research, focusing on the role of N-glycoproteins in insulin secretion metabolism.
  • The study identified and analyzed 50 different N-glycans in MIN6 cell membranes using advanced mass spectrometry, highlighting their relative abundances and structural categories, including bisecting N-acetylglucosamine, core-fucosylated, and sialylated types.
  • Findings indicate that these N-glycan structures significantly influence cell adhesion and interactions, potentially enhancing insulin secretion efficiency in beta cells, with notable differences compared to human islets.
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Host N-glycans play an essential role in the attachment, invasion, and infection processes of viruses, including zoonotic infectious diseases. The similarity of N-glycans in the trachea and lungs of humans and pigs facilitates the cross-species transmission of influenza viruses through respiratory tracts. In this study, the structure and quantity of N-glycans in the plasma of humans, pigs, and chickens were analyzed using liquid chromatography-quadrupole-Orbitrap-tandem mass spectrometry.

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Background: Cryptogenic new-onset refractory status epilepticus (cNORSE) currently lacks comprehensive knowledge regarding its clinical dynamics, prognostic factors and treatment guidance. Here we present the longitudinal clinical profiles, predictive factors for outcomes and the optimal duration of immunotherapy in patients with cNORSE.

Methods: This retrospective secondary endpoint analysis investigated patients with cNORSE identified from a prospective autoimmune encephalitis cohort at a national referral centre in Korea.

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This study investigated the neuroprotective effect of 70% ethanol extract of (EE) in amyloid beta (Aβ)-induced cognitive deficit mice. As a result of analyzing the bioactive compounds in EE, nine compounds were identified using ultra-performance liquid chromatography-quadrupole time-of-flight mass spectrometry (UPLC-Q-TOF-MS). In particular, the diekcol content was quantified by high-performance liquid chromatography with diode-array detection (DAD-HPLC).

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Disrupted lipid metabolism is a characteristic of gliomas. This study utilizes an ultrastructural approach to characterize the prevalence and distribution of lipids within gliomas. This study made use of tissue from IDH1 wild type (IDH1-wt) glioblastoma ( = 18) and IDH1 mutant (IDH1-mt) astrocytoma ( = 12) tumors.

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Urban heat island (UHI) and thermal comfort conditions are among the impacts of urbanization, which have been extensively studied in most cities around the world. However, the comprehensive studies in Indonesia in the context of urbanization is still lacking. This study aimed to classify land use and land cover (LULC) and analyse urban growth and its effects on surface urban heat islands (SUHIs) and urban thermal conditions as well as contributing factors to SUHI intensity (SUHII) using remote sensing in the western part of Java Island and three focused urban areas: the Jakarta metropolitan area (JMA), the Bandung and Cimahi Municipalities (BC), and the Sukabumi Municipality (SKB).

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Mortalin (encoded by HSPA9) is a mitochondrial chaperone often overexpressed in cancer through as-yet-unknown mechanisms. By searching different RNA-sequencing datasets, we found that ESRRA is a transcription factor highly correlated with HSPA9 in thyroid cancer, especially in follicular, but not C cell-originated, tumors. Consistent with this correlation, ESRRA depletion decreased mortalin expression only in follicular thyroid tumor cells.

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Bovine intestinal alkaline phosphatase (biALP), a membrane-bound plasma metalloenzyme, maintains intestinal homeostasis, regulates duodenal surface pH, and protects against infections caused by pathogenic bacteria. The N-glycans of biALP regulate its enzymatic activity, protein folding, and thermostability, but their structures are not fully reported. In this study, the structures and quantities of the N-glycans of biALP were analyzed by liquid chromatography-electrospray ionization-high energy collision dissociation-tandem mass spectrometry.

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Article Synopsis
  • Type A aortic dissection and intramural hematoma are serious conditions that require emergency surgery typically involving cooled body temperatures and cardiopulmonary bypass.
  • This study analyzed the outcomes of different arterial cannulation techniques used during surgery, comparing antegrade and retrograde methods regarding surgical time and ICU stay.
  • Findings showed that while antegrade cannulation led to shorter surgical times and ICU stays, there was no significant difference in 30-day mortality or rates of cerebrovascular accidents between the two methods.
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Ulcerative colitis (UC) is one of the inflammatory bowel diseases (IBD) that is characterized by systemic immune system activation. This study was performed to assess the alleviative effect of administering an aqueous extract of leaves (AEEL) on cognitive dysfunction in mice with dextran sulfate sodium (DSS)-induced colitis. The major bioactive compounds of AEEL were identified as a quinic acid derivative, caffeic acid-O-hexoside, and 3-O-caffeoylquinic acid using UPLC Q-TOF/MS.

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Backgruound: The predictive factors for lateral neck lymph node metastasis (LLNM) in papillary thyroid microcarcinoma (PTMC) remain undetermined. This study investigated the clinicopathological characteristics, transcriptomes, and tumor microenvironment in PTMC according to the LLNM status. We aimed to identify the biomarkers associated with LLNM development.

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Eosinophilic meningoencephalitis is a rare inflammatory condition of the central nervous system. As a limited number of cases has been reported, debate remains on the optimal treatment. We present a case of idiopathic eosinophilic meningoencephalitis successfully treated with glucocorticoids and intravenous immunoglobulin (IVIG).

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