Publications by authors named "Jang H"

Inhibiting epigenetic modulators can transcriptionally reactivate transposable elements (TEs). These TE transcripts often generate unique peptides that can serve as immunogenic antigens for immunotherapy. Here, we ask whether TEs activated by epigenetic therapy could appreciably increase the antigen repertoire in glioblastoma, an aggressive brain cancer with low mutation and neoantigen burden.

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  • The study investigates how kidney fibrosis from deceased donors affects transplant success and aims to find miRNA biomarkers in urinary exosomes that correlate with interstitial fibrosis and tubular atrophy (IFTA) severity.
  • Out of 109 urine samples analyzed, 34 showed no IFTA while 75 had varying degrees of IFTA, with six specific miRNAs identified as potential biomarkers.
  • Notably, miR-21 and miR-29c demonstrated strong predictive accuracy for IFTA, and the study found that kidney function (eGFR) was significantly better in the no IFTA group compared to the IFTA group one week post-transplant.
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Due to its small hole-effective mass, flexibility, and transparency, copper iodide (CuI) has emerged as a promising p-type alternative to the predominantly used n-type metal oxide semiconductors. However, the lack of effective doping methods hinders the utility of CuI in various applications. Sulfur (S)-doping through liquid iodination is previously reported to significantly enhance electrical conductivity up to 511 S cm.

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Background: Herbal medicine Ja-Geum-Jeong (JGJ) has been used for the treatment of detoxification in Eastern Asia. However, the mechanisms involved are not clearly defined. The purpose of the present study was to investigate if herb medication inhibits Methamphetamine (METH)'s reinforcing effect and also examined if a combination of herb medication and acupuncture produces a synergistic effect on METH.

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An efficient reagent-free method for the synthesis of polysubstituted 4-quinolone from 2-substituted alkynoyl aryl-sulfonamide was developed. This developed method tolerates various functional groups and gives the corresponding 4-quinolones. We have successfully extended this method to the synthesis of dihydro-4-quinolones from 2-alkenoyl aryl sulfonamide derivatives.

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Digital information encoded in polymers has been exclusively decoded by mass spectrometry. However, the size limit of analytes in mass spectrometry restricts the storage capacity per chain. In addition, sequential decoding hinders random access to the bits of interest without full-chain sequencing.

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Background: Increasing evidence supports the association between body mass index (BMI), Alzheimer's disease, and vascular markers. Recently, metabolically unhealthy conditions have been reported to affect the expression of these markers. We aimed to investigate the effects of BMI status on Alzheimer's and vascular markers in relation to metabolic health status.

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In clinical practice, determining programmed death-ligand 1 (PD-L1) expression is crucial for selecting patients and monitoring immune checkpoint blockade therapies. Currently, PD-L1 expression is quantified using immunohistochemistry (IHC). However, IHC-based methods do not capture the heterogeneous and dynamic nature of PD-L1 expression.

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This study investigated the effects of Mill (LCM) extract on obesity and diabetes, using both in vitro and high-fat diet (HFD)-induced obesity mouse models. We found that LCM notably enhanced glucagon-like peptide-1 (GLP-1) secretion in NCI-h716 cells from 411.4 ± 10.

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  • Plantar fasciitis (PF) is a prevalent condition leading to heel pain, and this study explores the effectiveness of shoe rotation (ShR) compared to traditional treatments like foot orthosis (FO) and physical therapy (PT).
  • A total of 42 patients were divided into three groups to assess pain and function using various scales before and after 4 and 12 weeks of treatment.
  • Results showed that all three treatments significantly reduced pain and improved function, with the ShR group demonstrating slightly better outcomes, indicating it could be a beneficial approach for managing PF.
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is a highly nutritious marine microalga that has various applications in aquaculture and biotechnology. However, the effects of extract (TLE) on osteoarthritis (OA) pathogenesis remain unexplored. In this study, we aimed to determine the effects of TLE on OA development.

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Group I metabotropic glutamate receptors (mGluRs) modulate postsynaptic neuronal excitability and epileptogenesis. We investigated roles of group I mGluRs on low extracellular Mg concentration ([Mg])-induced epileptiform activity and neuronal cell death in the CA1 regions of isolated rat hippocampal slices without the entorhinal cortex using extracellular recording and propidium iodide staining. Exposure to Mg-free artificial cerebrospinal fluid can induce interictal epileptiform activity in the CA1 regions of rat hippocampal slices.

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  • A significant fire at a tire manufacturing factory in Daejeon, Korea, lasted for three days starting on March 12, 2023, leading to concerns about health risks from smoke exposure for nearby residents.
  • The study aimed to analyze the health effects and excess air pollution exposure resulting from the fire by using data from local monitoring stations and health records.
  • Results showed that residents in smoke-exposed areas experienced elevated levels of various pollutants and an increase in incidence rates of respiratory and skin conditions following the incident.
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  • * This study investigates the effects of catechin 7-O--D-apiofuranoside on muscle cell apoptosis and protein/gene expression in a model of muscle atrophy, using techniques like Western blotting and RT-PCR.
  • * Results show that catechin extract reduces muscle-degradation proteins (Atrogin-1, MuRF1) while boosting muscle-synthesis proteins (MyoD, Myogenin), hinting at its potential for preventing muscle loss and promoting health through functional foods and medicines.
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Prior research has highlighted poor clinical outcomes in coronavirus disease 2019 (COVID-19)-infected patients with diabetes; however, susceptibility to COVID-19 infection in patients with diabetes has not been extensively studied. Participants aged ≥30 years who underwent COVID-19 testing from December 2019 to April 2020 were analyzed using the National Health Insurance Service data in South Korea. In a cohort comprising 29,433 1:1 propensity score-matched participants, COVID-19 positivity was significantly higher in participants with diabetes than in those without diabetes (512 [3.

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Over the last decade, automatic chemical design frameworks for discovering molecules with drug-like properties have significantly progressed. Among them, the variational autoencoder (VAE) is a cutting-edge approach that models the tractable latent space of the molecular space. In particular, the usage of a VAE along with a property estimator has attracted considerable interest because it enables gradient-based optimization of a given molecule.

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Regulating the catalytic reaction pathway to essentially break the activity/stability trade-off that limits RuO and thus achieves exceptional stability and activity for the acidic oxygen evolution reaction (OER) is important yet challenging. Herein, we propose a novel strategy of incorporating atomically dispersed V species, including O-bridged V dimers and V single atoms, into RuO lattices to trigger direct O-O radical coupling to release O without the generation of *OOH intermediates. V-RuO showed high activity with a low overpotential of 227 mV at 10 mA cm and outstanding stability during a 1050 h test in acidic electrolyte.

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Background/aim: Angiotensinogen (AGT), a precursor of angiotensin II (AngII), contributes to regulating (patho)physiological conditions, including blood pressure changes, inflammation, and kidney fibrosis. However, the precise role of tissue-specific AGT in kidney fibrosis independent of blood pressure remains to be fully understood. This study investigated the source of intrarenal AGT and its role in kidney injury and fibrosis during obstructive nephropathy.

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Xanthogranulomatous pyelonephritis (XGP) is an extremely rare, chronic granulomatous inflammatory condition thought to arise secondary to a combination of obstruction, recurrent bacterial infection and an incomplete immune response although the etiology of XGP is more complex. We would like to report a case of XGP occurring in a patient with polycystic kidney disease (PCKD), which has not been previously documented in etiology. A 29-year-old woman presented to our hospital with right upper quadrant pain for 5 days.

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  • A novel method was developed for detecting vitamins D and K in yogurt using QuEChERS extraction combined with UPLC-APCI-MS/MS analysis, leading to improved efficiency and sensitivity over traditional techniques.
  • The optimized process showed excellent linearity (R > 0.999) and very low limits of detection (0.01-0.04 µg/L), achieving high accuracy and recovery rates greater than 94.88%.
  • This new approach provides a simpler, faster, and more reliable way to analyze vitamin content in food compared to time-consuming methods like liquid-liquid extraction, highlighting the importance of innovative techniques in food science.
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Background: Smoking is known to be a significant risk factor for various diseases. Migraine, a condition requiring careful lifestyle management, currently lacks specific guidelines advocating for smoking cessation as a preventive measure. Although cross-sectional studies have suggested a potential link between smoking and an increased risk of migraine, the findings have been inconsistent and conflicting.

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Interfacial interactions between polymers and fillers play a crucial role in determining the performance of composite materials. In this study, mechano-responsive spiropyran (SP) beads, which exhibit fluorescence changes under stress, serve as force probes to evaluate force transfer efficiency across two types of interfaces: noncovalent and covalent. These interfaces are engineered by respectively employing physical blending and grafting polymerization to integrate hydroxyl SP beads with a polyurethane (PU) matrix.

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Tin-lead (Sn-Pb) perovskite solar cells (PSCs) hold considerable potential for achieving efficiencies near the Shockley-Queisser (S-Q) limit. Notably, the inverted structure stands as the preferred fabrication method for the most efficient Sn-Pb PSCs. In this regard, it is imperative to implement a strategic customization of the hole selective layer to facilitate carrier extraction and refine the quality of perovskite films, which requires effective hole selectivity and favorable interactions with Sn-Pb perovskites.

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  • This study evaluated how effective capsule endoscopy is for spotting foreign objects in the stomachs of healthy dogs, focusing on different numbers of objects and stomach conditions.
  • Five beagle dogs were given safe, artificial foreign items, and the resulting images were analyzed by both veterinarians and laypeople.
  • The findings showed that capsule endoscopy had a high overall sensitivity of 99.1% and specificity of 90.4%, indicating it’s a useful method for detecting stomach foreign bodies, especially in cases where traditional methods fall short.*
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Background: Although urinary tract infection (UTI) is a common and severe public health concern, and there are clear biological mechanisms between UTI and hot temperatures, few studies have addressed the association between hot temperatures and UTI.

Methods: We designed a time-stratified case-crossover study using a population-representative sample cohort based on the National Health Insurance System (NHIS) in South Korea. We obtained all NHIS-based hospital admissions through the emergency room (ER) due to UTI (using a primary diagnostic code) from 2006 to 2019.

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