Publications by authors named "SangHo Lee"

The trapping of pathogenic ligands can potentially be used to prevent signal transduction mediated by catabolic factor expression in osteoarthritis (OA). Although vaspin is known to function as a pathogenic ligand and represents a novel adipokine, little is known about its function and the impact of its nebulization-based administration in OA. Here we provide a report on the function of vaspin in articular chondrocytes and OA model mice.

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Salinity gradient power (SGP) technologies, including pressure-retarded osmosis (PRO) and reverse electrodialysis (RED), have the potential to be utilized for the purpose of harvesting energy from the difference in salinity between two water streams. One challenge associated with SGP is a reduction in power density due to membrane fouling when impaired water is utilized as a low-salinity water stream. Accordingly, this study sought to explore the feasibility of membrane capacitive deionization (MCDI), a low-energy water treatment technique, as a novel pretreatment method for SGP.

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Background: Berberine has therapeutic potential in central nervous system disorders, however, few studies have investigated the effect of berberine on axonal regeneration in PNS injury models. Thus, this study aims to assess the effects of berberine on axonal regeneration in a peroneal nerve transection rat model.

Methods: Sprague-Dawley rats were divided into two groups: group B, berberine (20 mg/kg) intraperitoneal injection after peroneal nerve transection; and group C, normal saline injection as a control.

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In plant cells, ALMTs are key plasma and vacuolar membrane-localized anion channels regulating plant responses to the environment. Vacuolar ALMTs control anion accumulation in plant cells and, in guard cells, they regulate stomata aperture. The activation of vacuolar ALMTs depends on voltage and cytosolic malate, but the underlying molecular mechanisms remain elusive.

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Background: Although cell therapy has emerged as a promising approach to promote neovascularization, its effects are mostly limited to capillaries. To generate larger or stable vessels, layering of mural cells such as smooth muscle cells (SMCs) or pericytes is required. Recently, direct reprogramming approaches have been developed for generating SMCs.

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MXenes, a class of two-dimensional titanium carbide materials, have emerged as promising materials for film-based applications due to their exceptional properties. However, their densely layered structures hinder ion diffusion, metal-ion mobility, and nanoscale particle transfer, limiting their potential in energy-related applications. Expanding and controlling interlayer spacing is essential for overcoming these limitations and optimizing MXene performance.

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Acute kidney injury (AKI) is associated with high morbidity and mortality rates, primarily due to the lack of effective therapeutic options for kidney repair. To restore the biological function of injured kidney, there is a need to protect renal tubular epithelial cells (RTECs) and regulate M1 macrophages, responsible for progress of AKI. Herein, based on metabolic glycoengineering-mediated click chemistry, we prepare the engineered extracellular vesicles (pSEVs), derived from PEGylated hyaluronic acid (HA)-modified mesenchymal stem cells.

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The incidence of mammary gland tumors in dogs is a significant issue, characterized by notable rates of malignancy, recurrence, and disease burden. However, the lack of comprehensive information and correlated studies has presented challenges in establishing an effective surgical treatment strategy. In this study, a cohort of 95 dogs diagnosed with mammary tumors underwent evaluation using various surgical methods, medications, ovariohysterectomy, and assessments of margin completeness to analyze clinical outcomes.

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Article Synopsis
  • Gliclazide is a medication for type 2 diabetes, primarily metabolized by genetic variations in the CYP2C9 and CYP2C19 enzymes.
  • A physiologically based pharmacokinetic (PBPK) model was developed to analyze how these genetic differences affect gliclazide's effects in patients.
  • The model accurately predicted drug concentration levels in the bloodstream, meeting standard evaluation criteria and potentially paving the way for personalized treatment plans based on genetic profiles.
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Background: Current guidelines recommend preserving at least one of the bilateral pelvic flows in patients with aortoiliac aneurysms. The sandwich parallel graft, using commercially available devices, provides a viable option for patients who fall outside the instructions for use of iliac branch devices. However, gutter endoleak remains a significant challenge.

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To overcome the limitations of traditional Reverse Osmosis (RO) desalination, Membrane Distillation (MD) has gained attention as an effective solution for improving the treatment of seawater and RO brine. Despite its potential, the formation of inorganic scales, particularly calcium sulfate (CaSO), continues to pose a major challenge. This research aims to explore the scaling mechanisms in MD systems through a combination of experimental analysis and dynamic modeling.

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The demand for the three-dimensional (3D) integration of electronic components is steadily increasing. Despite substantial processing challenges, the through-silicon-via (TSV) technique emerges as the only viable method for integrating single-crystalline device components in a 3D format. Although monolithic 3D (M3D) integration schemes show promise, the seamless connection of single-crystalline semiconductors without intervening wafers has yet to be demonstrated.

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The application of extracellular vesicles (EVs) as vehicles for anti-Parkinson's agents represents a significant advance, yet their clinical translation is hampered by challenges in efficient brain delivery and complex blood-brain barrier (BBB) targeting strategies. In this study, we engineered dopamine onto the surface of adipose-derived stem cell EVs (Dopa-EVs) utilizing a facile, two-step cross-linking approach. This engineering enhanced neuronal uptake of the EVs in primary neurons and neuroblastoma cells, a process shown to be competitively inhibited by dopamine pretreatment and dopamine receptor antibodies.

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This study systematically reviews existing data on the efficacy of Tyrosine Kinase 2 (TYK2) inhibitors in comparison to placebo or standard treatments for therapeutic benefit and improving quality of life in dermatological diseases. Seventeen records representing 13 clinical trials, one matching-adjusted indirect comparison, and one case study were included. Results indicate that Deucravacitinib is superior to placebo, Apremilast and Adalimumab in treating adult patients with moderate-to-severe plaque psoriasis and superior to placebo in the treatment of adults with systemic lupus erythematosus.

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Background: The clinical significance and renal outcomes of C1q nephropathy (C1qN) are unclear; therefore, the implications of C1qN as a new pathological entity are uncertain. We compared the clinical characteristics of glomerulonephritis reclassified into cases that meet the definition of C1qN and glomerulonephritis not included in the definition of C1qN.

Methods: In total, 21,697 patients who underwent native kidney biopsy at 18 hospitals throughout Korea between 1979 and 2018 were retrospectively enrolled.

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Article Synopsis
  • * Phosphorylation of Ctbp2 causes it to change from a tetramer to a monomer, which reduces its interaction with zinc finger proteins and leads to slower H3K27 deacetylation.
  • * The modified Ctbp2 increases its affinity for the polycomb repressive complex PRC2, competing with Jarid2, thus helping maintain stem cell characteristics by preventing complete transcriptional shutdown.
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Inhibitory neuronal circuits within the lateral septum (LS) play a key role in regulating mood and stress responses. Even though glial cells can modulate these circuits, the impact of astrocytes on LS neural circuits and their functional interactions remains largely unexplored. Here, we demonstrate that astrocytes exhibit increased intracellular Ca²⁺ levels in response to aversive sensory and social stimuli in both male and female mice.

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  • - Complex coacervation is a process where oppositely charged polymers separate into two phases: one rich in polymers and one poor in them, typically studied in water due to polyelectrolytes' limited solubility.
  • - Researchers created two specialized polymerized ionic liquids (PILs), which can dissolve in various organic solvents with different dielectric constants, allowing them to explore how solvent properties affect coacervation.
  • - They found that the phase behavior of these PILs is mostly similar across different organic solvents, with only certain protic solvents showing low salt resistance, attributed to strong hydrogen bonding rather than dielectric effects.
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Although we have multiple senses, multimedia mainly targets vision and olfaction. To expand the senses impacted by multimedia, olfactory stimulation has been used to enhance the sense of reality. Odors are primarily matched with objects in scenes.

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Remote epitaxy is taking center stage in creating freestanding complex oxide thin films with high crystallinity that could serve as an ideal building block for stacking artificial heterostructures with distinctive functionalities. However, there exist technical challenges, particularly in the remote epitaxy of perovskite oxides associated with their harsh growth environments, making the graphene interlayer difficult to survive. Transferred graphene, typically used for creating a remote epitaxy template, poses limitations in ensuring the yield of perovskite films, especially when pulsed laser deposition (PLD) growth is carried out, since graphene degradation can be easily observed.

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Background: Cardiovascular disease is an important risk factor for mortality among kidney transplant recipients. In this study, we aimed to investigate the association between cardiovascular risk score at kidney transplantation and long-term outcomes of patients.

Methods: In this prospective, observational cohort study, we enrolled kidney transplant recipients who participated in the Korean Organ Transplantation Registry and underwent transplantation between April 2014 and December 2019.

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Objectives: Endoscopic lumbar discectomy is a minimally invasive technique with a steep learning curve. The studies in the literature base the learning curve on the operative duration. We conducted this study to determine the learning curve based on the presence or absence of supervision by an experienced surgeon.

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  • The COVID-19 pandemic has highlighted the need for effective therapeutic interventions alongside vaccines, especially given the rapid mutation of the SARS-CoV-2 virus.
  • This study investigates the antiviral properties and safety of 6'-Hydroxy justicidin B (6'-HJB), a compound from traditional Chinese medicine, as a potential treatment for COVID-19.
  • Results show that 6'-HJB effectively inhibits SARS-CoV-2 growth with lower toxicity than remdesivir and has a favorable safety profile in both cell lines and ferrets, indicating it may be a promising therapeutic option.
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  • This study investigated how post-calcination affects the ability of Mg/Al layered double hydroxide-decorated spent coffee ground biochars (LDH@SCGB) to adsorb arsenic (As) and antimony (Sb) from water.
  • Post-calcination improved charge properties and active sites in the biochars, leading to increased adsorption capacities for As and Sb compared to regular spent coffee ground biochars (SCGB) and LDH@SCGB.
  • The findings suggest that post-calcination enhances selectivity and reusability for As and Sb removal, making PLDH@SCGB an effective option for water treatment applications.
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