Publications by authors named "Heo K"

Glucose-regulated protein 94 (GRP94) overexpression plays a critical role in tumor cell survival across various cancers. Previously, we developed K101.1, a fully human antibody targeting cell surface GRP94, which effectively inhibits tumor angiogenesis in colorectal cancer (CRC).

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Study Design: Retrospective database study.

Objective: To leverage a commercial insurance claims database to explore trends in laminoplasty utilization and reimbursement in the United States. Secondarily, volume estimates were compared with data from the industry and from the Centers for Medicare and Medicaid (CMS).

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In this study, we investigate the origins of low-frequency noise (LFN) and 1/ noise in CuO thin-film transistors (TFTs). The static direct current (DC) - characterization demonstrates that the channel resistance () contributes significantly to mobility degradation in the TFTs, with channel thickness () controlled through the plasma-enhanced atomic layer deposition (PEALD) process. The 1/ noise followed the Hooge mobility fluctuation (HMF) model, and it was observed that both Coulomb and phonon scattering within the channel, which increased with a decrease in , contributed simultaneously.

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The demand for compact energy storage devices necessitates the development of high-performance anode materials directly integrated with current collectors, minimizing or eliminating the need for binders or additives. With its layered structure and high theoretical capacity, molybdenum disulfide (MoS) is regarded as a promising anode material for lithium-ion batteries (LIBs). Here, we report chemical vapor deposition (CVD) growth of self-integrated, vertically aligned MoS nanosheets with embedded molybdenum dioxide (MoO) directly on a molybdenum foil and explore its potential as an anode material for LIBs.

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Article Synopsis
  • Many therapeutic drugs, especially anticancer and antibacterial ones, target type II topoisomerases, but their action mechanisms are not fully understood.
  • A new single-molecule FRET-based drug screening method has been developed to better identify how drug candidates interact with these proteins during their reactions.
  • The method has successfully analyzed well-known drugs like etoposide and bisdioxopiperazines, and it promises to be useful for screening other drugs targeting various proteins in the future.*
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  • There is increased interest in using high-resolution T2 (hrT2) imaging for vestibular schwannoma (VS) and cochlea research, due to fewer side effects compared to contrast-enhanced T1 (ceT1) imaging.
  • The challenge lies in a lack of annotated hrT2 data, which is crucial for developing effective segmentation models.
  • The proposed solution is a target-aware unsupervised domain adaptation framework that focuses on the unique visual characteristics and sizes of these objects, improving image translation and preserving the quality of small structures.
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Background: Glucagon-like peptide-1 (GLP-1) agonists have emerged as a powerful diabetic treatment adjunct; however, their effects on outcomes following total hip arthroplasty (THA) are not well known. This study aimed to compare the risk of complications in patients who had type 2 diabetes mellitus (DM) who were on GLP-1 agonists with those who were not on these medications.

Methods: In total, 14,065 patients who had type 2 DM undergoing primary THA between 2016 and 2021 were retrospectively reviewed using a national database.

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Objective: This study aimed to investigate effects of apparent metabolizable energy (AMEn) levels in diets on productivity, fat deposition, and biochemical parameters of Woorimatdag1 (WMD1) breeder pullets.

Methods: A total of 240 four-week-old WMD1 breeder pullets were divided into four dietary groups with five replicates (12 birds per replicate). These groups had the following dietary energy levels: standard ME (SME), SME-200, SME-100, and SME+100 (diets containing 2,800, 2,600, 2,700, and 2,900 kcal AMEn/kg, respectively).

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Background/aim: Ovarian cancer remains a significant challenge due to its high mortality rate and poor prognosis, especially in advanced stages. Despite treatment advancements, issues with resistance and recurrence persist, highlighting the urgent need for new and effective therapies. This study aimed to evaluate fostamatinib, an oral spleen tyrosine kinase inhibitor initially developed for autoimmune diseases, as a potential treatment for ovarian cancer.

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  • Total elbow arthroplasty (TEA) is an important surgical procedure for various elbow conditions, including osteoarthritis and rheumatoid arthritis, but there's limited research on usage trends.
  • A study analyzed TEA cases in the U.S. from 2010 to 2018 using health database queries, categorizing patients by their specific conditions and examining trends related to sex, age, and location.
  • Results showed a significant overall decline in TEA procedures, dropping from 694 to 466 cases annually, with the largest decrease seen in cases for rheumatoid arthritis, while cases for osteoarthritis showed the smallest reduction.
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Macrophages play a central role in cardiovascular diseases, like atherosclerosis, by accumulating in vessel walls and inducing sustained local inflammation marked by the release of chemokines, cytokines, and matrix-degrading enzymes. Recent studies indicate that 6'-sialyllactose (6'-SL) may mitigate inflammation by modulating the immune system. Here, we examined the impact of 6'-SL on lipopolysaccharide (LPS)-induced acute inflammation using RAW 264.

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Article Synopsis
  • * In experiments with mice, 6'-SL treatment significantly reduced aortic dilation and other negative effects caused by Ang II, while inhibiting the signaling pathway involving p90RSK and TGF-β.
  • * The findings suggest that 6'-SL could be a promising treatment option for preventing AA by targeting specific biochemical pathways linked to VSMC dysfunction and AA formation.
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  • Mechanically assisted crevice corrosion can complicate total hip arthroplasty (THA), potentially leading to adverse local tissue reactions (ALTR) due to metal ions released in the body.
  • A study examined 552 THA patients, focusing on the relationship between synovial fluid (SF) cobalt and chromium ion levels and the risk of developing ALTR, analyzing preoperative and intraoperative samples.
  • The findings showed no correlation between SF ion levels and ALTR; elevated serum cobalt levels were predictive of ALTR, indicating that SF measurements add no value over serum levels for diagnosing this condition.
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  • The study focuses on developing machine learning models to identify risk factors for acute kidney injury (AKI) following spinal fusion surgery.
  • It uses patient data from the IBM MarketScan Database, analyzing over 141,000 cases and finding a 2.96% incidence rate of AKI within 90 days post-surgery.
  • Key risk factors include chronic renal disease, hypertension, diabetes (with or without complications), age over 50, and congestive heart failure, which can be used to create a simple risk calculator for surgeons to assess preoperative risk.
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Article Synopsis
  • - The text outlines a research study that includes sections on background information, methods used for the study, results obtained, and the conclusion drawn from the findings.
  • - The background section likely provides context and rationale for the study, while the methods section explains how the research was conducted.
  • - The results section presents the key findings, and the conclusion summarizes the implications or significance of these results, emphasizing the level of evidence provided by the research.*
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  • The study evaluates the effectiveness of the Neuroform Atlas stent in treating ruptured intracranial aneurysms through a review of 191 patients treated between 2018 and 2022.
  • Though there was a slight increase in intraprocedural rupture rates in the Simple Coiling group compared to the stent-assisted group, the differences were not statistically significant.
  • Overall, the findings suggest that using the Neuroform Atlas stent may be a safe and effective method for treating these aneurysms, with no major advantages or disadvantages noted between the stent-assisted and simple coiling techniques.
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  • Chronotype is a measure of individual sleep preferences and behaviors, traditionally assessed using the lengthy Horne & Östberg Morningness-Eveningness Questionnaire (MEQ), which has been shortened to the reduced MEQ (rMEQ) for easier use.
  • The study evaluated the validity and reliability of the Korean version of the rMEQ by comparing its scores with those from the original MEQ and the Munich Chronotype Questionnaire (MCTQ) in a sample of 3,030 individuals.
  • Results showed a strong positive correlation between the rMEQ and MEQ scores, along with significant negative correlations with sleep midpoint data from the MCTQ, confirming the rMEQ’s effectiveness as a valid and reliable tool
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Background: Oral anticoagulants (OACs) are essential for the prevention and treatment of thromboembolic disorders, but bleeding, a major complication, can have a fatal impact on the patient's treatment.

Objectives: We aimed to estimate the nationwide, real-world incidence rate of bleeding in patients taking OACs and confirm the incidence by indications and risk factors.

Methods: This cross-sectional study identified OAC users from April 1 to December 31, in both 2019 and 2020, using the HIRA-NPS database.

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Background/aim: Ovarian cancer (OC) is a leading cause of cancer-related mortality among women, and there remains a significant unmet need for new therapeutic agents to improve patient outcomes. This study aimed to explore drug repositioning by screening a library of Food and Drug Administration (FDA)-approved compounds to identify those with therapeutic potential against OC. We also aimed to elucidate the molecular mechanisms of action of such compounds to better understand how they inhibit cancer cell proliferation.

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  • Delirium occurs in up to 50% of patients after high-risk surgeries and can negatively impact long-term health outcomes; the study aimed to use machine learning to predict this condition using sleep data from polysomnography (PSG) and questionnaires.
  • Researchers analyzed data from 912 adults who had surgeries under general anesthesia, identifying key risk factors for delirium such as medication use, surgery duration, and sleep issues like REM episodes and daytime sleepiness.
  • The machine learning model showed strong predictive capabilities, achieving an AUC of 0.84 when combining clinical and PSG data, emphasizing the importance of sleep-related factors in identifying patients at risk for delirium post-surgery.
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Juvenile myoclonic epilepsy (JME) is a common adolescent epilepsy characterized by myoclonic, generalized tonic-clonic, and sometimes absence seizures. Prognosis varies, with many patients experiencing relapse despite pharmacological treatment. Recent advances in imaging and artificial intelligence suggest that combining microstructural brain changes with traditional clinical variables can enhance potential prognostic biomarkers identification.

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The relentless miniaturization inherent in complementary metal-oxide semiconductor technology has created challenges at the interface of two-dimensional (2D) materials and metal electrodes. These challenges, predominantly stemming from metal-induced gap states (MIGS) and Schottky barrier heights (SBHs), critically impede device performance. This work introduces an innovative implementation of damage-free SbTe topological van der Waals (T-vdW) contacts, representing an ultimate contact electrode for 2D materials.

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Article Synopsis
  • * The patient experienced various symptoms such as seizures, vomiting, and blurred vision, and was diagnosed with conditions like hypophysitis and hypoparathyroidism, ultimately recovering after corticosteroid treatment.
  • * The case emphasizes the importance of long-term monitoring for patients with autoimmune diseases, as they can develop multiple conditions simultaneously, requiring ongoing treatment and care.
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Purpose: Pelvis tilting in sagittal plane influences the acetabular cup position. Majority of total hip arthroplasty (THA) are performed in lateral decubitus surgical position. This study is to assess whether there is any difference in sacral slope between standing and lateral decubitus position and influence of this variation in planning acetabular cup anteversion.

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Background: The rising global incidence of cancer has increased the demand for chemotherapy, which is a crucial treatment modality. Recent advancements in cancer treatment, including targeted agents and immunotherapy, have introduced complications owing to their specific mechanisms. However, comprehensive studies of the combined complications of these approaches are lacking.

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