Publications by authors named "Jonghyuk Lee"

This study focused on addressing the challenges associated with the incompatibility between sulfide solid electrolytes and Ni-rich cathode active materials (CAMs) in all-solid-state lithium-ion batteries. To resolve these issues, protective layers have been explored for Ni-rich materials. Lithium lanthanum titanate (LLTO), a perovskite-type material, is recognized for its excellent chemical stability and ionic conductivity, which render it a potential protective layer in CAMs.

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Objectives: Dental caries, or tooth decay, is an oral health issue worldwide. Oral healthcare researchers are considering how to develop safe and effective preventive measures and treatments for dental caries. This study evaluated the potential applications of Compound K and BTEX-K, a Compound K-rich red ginseng extract, for the prevention and treatment of dental caries.

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In this research, we attempted to develop paints that can be applied to various fields such as high-rise building structures and electric vehicle batteries. To minimize damage to life and property in the event of a fire, we attempted to manufacture a highly elastic paint material that can block flames and control smoke spread, and that has additional sound insulation and waterproofing functions. A high-elasticity paint was manufactured by mixing a flame-retardant polyurethane dispersion (PUD) with an acrylic emulsion binder and adding different mass fractions of expandable graphite (EG).

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A thriving cottage industry has long tried to predict the selection outcomes of the Chinese leadership using qualitative judgments based on historical trends and elite interviews. This study contributes to the discourse by adopting machine-learning techniques to quantitatively and systematically evaluate the promotion prospects of Chinese high-ranking officials. By incorporating over 250 individual features of approximately 20,000 high-ranking positions from 1982 to 2020, this paper calculated predicted probabilities of promotion for the 19th Politburo members of the Communist Party of China.

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The purpose of this study is to evaluate the changes in physical properties and biocompatibilities caused by thermocycling of CAD/CAM restorative materials (lithium disilicate, zirconia reinforced lithium silicate, polymer-infiltrated ceramic network, resin nanoceramic, highly translucent zirconia). A total of 225 specimens were prepared (12.0 × 10.

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Introduction: Fluoroscopy can improve the success rate of thoracic epidural catheter placement (TECP). Real-time ultrasound (US)-guided TECP was recently introduced and showed a high first-pass success rate. We tested whether real-time US-guided TECP results in a non-inferior first-pass success rate compared with that of fluoroscopy-guided TECP.

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We investigated the mechanism of signal transduction using inactivating (R476H) and activating (D576G) mutants of luteinizing hormone receptor (LHR) of eel at the conserved regions of intracellular loops II and III, respectively, naturally occurring in mammalian LHR. The expression of D576G and R476H mutants was approximately 58% and 59%, respectively, on the cell surface compared to those of eel LHR-wild type (wt). In eel LHR-wt, cAMP production increased upon agonist stimulation.

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Background: The purpose of this study was to investigate the role of opioid-based intravenous patient-controlled analgesia (IV PCA) or continuous brachial plexus block (BPB) in controlling rebound pain after distal radius fracture (DRF) fixation under BPB as well as total opioid consumption.

Methods: A total of 66 patients undergoing surgical treatment for a displaced DRF with volar plate fixation were randomized to receive a single infraclavicular BPB (BPB only group) (n = 22), a single infraclavicular BPB with IV PCA (IV PCA group) (n = 22), or a single infraclavicular BPB with continuous infraclavicular BPB (continuous block group) (n = 22). The visual analog scale (VAS) for pain and the amount of pain medication were recorded at 4, 6, 9, 12, 24, and 48 h and two weeks postoperatively.

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Background: Blinatumomab showed a higher complete remission (CR) rate and a safe bridging to allogeneic hematopoietic cell transplantation (allo-HCT) in adults with relapsed or refractory B-cell precursor acute lymphoblastic leukemia (R/R BCP-ALL).

Objectives: We tried to analyze the outcome of blinatumomab compared with the real-world historical data. We expected superior outcome of blinatumomab compared with historical conventional chemotherapy.

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Article Synopsis
  • - The study analyzed SCT2 outcomes in 52 adult AML patients using either haploidentical donors (HIT) or double-cord blood transplants (dCBT) and found that HIT led to better survival rates and lower mortality compared to dCBT over a median follow-up of 65 months.
  • - The HIT group showed faster recovery of blood cells (engraftment), superior 2-year overall survival (OS), disease-free survival (DFS), and lower rates of death unrelated to relapse compared to the dCBT group.
  • - Factors such as a longer remission period after the first transplant and being in complete remission at the time of the second transplant were linked to lower relapse rates, while being positive for
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  • The study investigates the incidence of complications during ultrasound-guided rectus sheath blocks (RSBs) for pain control in laparoscopic surgery, highlighting a lack of previous reports on this issue.
  • Data from 4,033 RSB procedures were analyzed, revealing a 2.4% complication rate, with extrarectus sheath injections being the most common issue.
  • The study emphasizes the importance of understanding technical considerations to reduce complications and improve patient outcomes during the procedure.
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  • The study aimed to investigate the preemptive visceral analgesic effect of thoracic paravertebral block (TPVB) in patients undergoing laparoscopic cholecystectomy (LC), focusing on its impact when combined with a pre-incisional rectus sheath block (RSB).
  • In a randomized trial with 70 elective LC patients, those receiving TPVB before the skin incision consumed significantly less postoperative analgesics (morphine) and reported lower pain levels than those receiving TPVB after the procedure.
  • The findings suggest that administering TPVB prior to incision can effectively reduce opioid consumption and enhance pain management in postoperative care.
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  • - PARPs are crucial for DNA damage repair, but while we know about nuclear PARP functions, the role of mitochondrial PARP (mtPARP) remains largely unexplored and controversial.
  • - This study provides evidence of PARP1 and poly ADP-ribosylation (PARylation) occurring in purified mitochondria, where adding NAD stimulates this process.
  • - Results indicate that PARP1 not only participates in mitochondrial PARylation but also plays a role in regulating the transcription of mitochondrial DNA (mtDNA) through NAD-dependent activity.
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The follicle-stimulating hormone receptor (FSHR) contains several N-linked glycosylation sites in its extracellular region. We conducted the present study to determine whether conserved glycosylated sites in eel FSHR are necessary for cyclic adenosine monophosphate (cAMP) signal transduction. We used site-directed mutagenesis to induce four mutations (N120Q, N191Q, N272Q, and N288Q) in the N-linked glycosylation sites of eel FSHR.

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Introduction: Real-time ultrasound-guided thoracic epidural catheter placement (US-TECP) has been recently introduced. Patient's position is associated with the success of spine interventions; however, the effects of position on the outcome of the procedure remain unknown. We aimed to assess the clinical usefulness of patient positioning during real-time US-TECP.

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Purpose/objectives: This study aimed to evaluate a nonface-to-face crown designing module in a preclinical dental course.

Methods: Free dental planning software (Blue Sky Plan) was installed on the personal computers of dental college students, and a #46 full veneer crown designing practice was performed individually. An online survey was conducted on the computers' specification and main usage of the students, the practice process, and results.

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The Philadelphia-negative myeloproliferative neoplasms (MPNs) are divided in three major groups: polycythemia vera (PV), essential thrombocythemia (ET), and primary myelofibrosis (PMF). The 2016 WHO classification incorporates also prefibrotic PMF (pre-PMF) and overt PMF. This study aimed to discriminate the clinical features, genetic alterations, and outcomes in patients with prefibrotic, overt PMF, and secondary MF (SMF).

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Objectives: Although patient-controlled epidural analgesia (PCEA) is an effective form of regional analgesia for abdominal surgery, some patients experience significant rebound pain after the discontinuation of PCEA. However, risk factors for rebound pain associated with PCEA in major abdominal surgery remain unknown. This study evaluated the incidence of rebound pain related to PCEA and explored potential associated risk factors.

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  • The study assessed the effectiveness of the ELN 2017 criteria in predicting post-transplant outcomes for 174 patients with acute myeloid leukemia who underwent their first allogeneic hematopoietic stem cell transplant (HSCT).
  • The follow-up revealed that survival rates (overall survival, relapse-free survival, and cumulative incidence of relapse) showed no significant differences between patients with intermediate (INT) and adverse (ADV) risk according to the ELN criteria.
  • However, pre-transplant WT1 levels were found to better predict outcomes, especially for INT risk patients, indicating that those with higher WT1 levels had worse outcomes, while FLT3-ITD mutation presence significantly worsened outcomes across all risk categories.
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Inotuzumab ozogamicin (INO) showed improved treatment outcomes for relapsed or refractory B-cell precursor acute lymphoblastic leukemia (BCP-ALL) but can induce hepatotoxic adverse events. Hepatic venoocclusive disease/sinusoidal obstruction syndrome (VOD/SOS) frequently develops after allogeneic hematopoietic cell transplantation (allo-HCT), and INO is a strong pretransplant risk factor. However, VOD/SOS can occur just after INO therapy.

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Although recent evidence shows that the programmed intermittent epidural bolus can provide improved analgesia compared to continuous epidural infusion during labor, its usefulness in major upper abdominal surgery remains unclear. We evaluated the effect of programmed intermittent epidural bolus versus continuous epidural infusion on the consumption of postoperative rescue opioids, pain intensity, and consumption of local anesthetic by retrospective analysis of data of patients who underwent major upper abdominal surgery under ultrasound-assisted thoracic epidural analgesia between July 2018 and October 2020. The primary outcome was total opioid consumption up to 72 h after surgery.

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Carpal tunnel syndrome (CTS) is a common neuropathy. Although CTS progression is known to be associated with thenar muscle (TM) atrophy, the diagnostic value of TM atrophy for CTS has not been established. In this research, the thenar muscle cross-sectional area (TMCSA) was evaluated to analyze the relationship between the TMCSA and CTS.

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Werner syndrome (WS) is an accelerated aging disorder characterized by genomic instability, which is caused by WRN protein deficiency. WRN participates in DNA metabolism including DNA repair. In a previous report, we showed that WRN protein is recruited to laser-induced DNA double-strand break (DSB) sites during various stages of the cell cycle with similar intensities, supporting that WRN participates in both non-homologous end joining (NHEJ) and homologous recombination (HR).

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One of major causes of cervical central stenosis (CCS) is thickened change of cervical ligament flavum (CLF). The association of a morphological parameter called cervical ligament flavum thickness (CLFT) with CCS has not been reported yet. Thus, the purpose of this research was to investigate the relationship between CCS and CFJT.

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