Publications by authors named "Youngshin Lee"

Article Synopsis
  • Renal cell carcinoma (RCC) is a severe kidney cancer with a poor prognosis, and the role of Niemann-Pick C1-Like 1 (NPC1L1) in its progression is not well understood.
  • In this study, researchers compared NPC1L1 expression in normal versus RCC tissues and found that lower levels in RCC, especially in certain subtypes, were linked to worse patient survival.
  • The findings indicate that higher NPC1L1 levels could be a potential independent prognostic marker for bad outcomes in RCC, necessitating further research on its mechanisms in cancer progression.
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Article Synopsis
  • * Fifty patients were monitored using both types of devices simultaneously, assessing their agreement through statistical methods.
  • * Results showed that while heart rate readings were consistent between the devices, some technical measurements had disagreements, but overall, the single-lead ECG is a reliable alternative for monitoring heart activity during exercise.
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Background: Formaldehyde was classified as a Group I Carcinogen by the International Agency for Research on Cancer (IARC) in 2006. While the IARC has stated that there is a lack of evidence that formaldehyde causes brain cancer, three meta-analyses have consistently reported a significantly higher risk of brain cancer in workers exposed to high levels of formaldehyde. Therefore, we report a case of a worker who was diagnosed with glioblastoma after being exposed to high concentrations of formaldehyde while working with formaldehyde resin in the paper industry.

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Background: Wearable electrocardiogram (ECG) monitoring devices are used worldwide. However, data on the diagnostic yield of an adhesive single-lead ECG patch (SEP) to detect premature ventricular complex (PVC) and the optimal duration of wearing an SEP for PVC burden assessment are limited.

Objective: We aimed to validate the diagnostic yield of an SEP (mobiCARE MC-100, Seers Technology) for PVC detection and evaluate the PVC burden variation recorded by the SEP over a 3-day monitoring period.

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  • A study was conducted to compare a new telemonitoring system using a single-lead ECG patch with a traditional telemetry system for monitoring heart rhythms in hospitalized patients.
  • The research included 80 patients, revealing that the new system displayed high reliability in detecting heart metrics and offered significant advantages by reducing signal noise and loss compared to the conventional method.
  • The findings suggest that the single-lead ECG patch is an effective alternative for telemonitoring in inpatient settings, maintaining performance while enhancing user experience through lower signal interference.
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Background: The acquisition of single-lead electrocardiogram (ECG) from mobile devices offers a more practical approach to arrhythmia detection. Using artificial intelligence for atrial fibrillation (AF) identification enhances screening efficiency. However, the potential of single-lead ECG for AF identification during normal sinus rhythm (NSR) remains under-explored.

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Background: The variable number of tandem repeat (VNTR) analyses are methods based on the detection of repeated sequences within the human genome. In order to perform DNA typing at the personal laboratory, it is necessary to improve the VNTR analysis.

Objective: The VNTR markers were difficult to popularize because PCR amplification was difficult due to its GC-rich and long nucleotide sequence.

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Clinical effect of donor-derived natural killer cell infusion (DNKI) after HLA-haploidentical hematopoietic cell transplantation (HCT) was evaluated in high-risk myeloid malignancy in phase 2, randomized trial. Seventy-six evaluable patients (aged 21-70 years) were randomized to receive DNKI (N = 40) or not (N = 36) after haploidentical HCT. For the HCT conditioning, busulfan, fludarabine, and anti-thymocyte globulin were administered.

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In a prospective, explorative study, the donor-source difference of haploidentical family (HF), matched sibling (MS), and unrelated donors (UD) was evaluated for the outcome of haematopoietic cell transplantations (HCT) in 101 patients with acute myeloid leukaemia (AML) in complete remission (CR). To eliminate compounding effects, a uniform conditioning regimen containing antithymocyte globulin (ATG) was used. After transplantation, there was a significantly higher cumulative incidence of acute graft-versus-host disease (GVHD) in HF-HCT patients (49%, 7%, and 16% for HF-, MS- and UD-HCT respectively; p < 0.

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Background: There is insufficient evidence for the use of single-lead electrocardiogram (ECG) monitoring with an adhesive patch-type device (APD) over an extended period compared to that of the 24-hour Holter test for atrial fibrillation (AF) detection.

Objective: In this paper, we aimed to compare AF detection by the 24-hour Holter test and 72-hour single-lead ECG monitoring using an APD among patients with AF.

Methods: This was a prospective, single-center cohort study.

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Article Synopsis
  • Da-Chai-Hu-Tang (DCHT) is a herbal extract that shows promise in reducing triglyceride (TG) levels, previously demonstrated in animal studies and small human trials.
  • A 12-week study evaluated DCHT's effectiveness and safety in high-risk patients on statins, who continued to experience elevated TG levels (200-500 mg/dL).
  • Both DCHT and OMEGA3 significantly reduced TG levels without serious side effects, with DCHT's effectiveness being comparable to that of OMEGA3.
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Background: Scoring systems developed for predicting survival after allogeneic hematopoietic cell transplantation (HCT) show suboptimal prediction power, and various factors affect posttransplantation outcomes.

Objective: A prediction model using a machine learning-based algorithm can be an alternative for concurrently applying multiple variables and can reduce potential biases. In this regard, the aim of this study is to establish and validate a machine learning-based predictive model for survival after allogeneic HCT in patients with hematologic malignancies.

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This study examines related literature to propose a model based on artificial intelligence (AI), that can assist in the diagnosis of depressive disorder. Depressive disorder can be diagnosed through a self-report questionnaire, but it is necessary to check the mood and confirm the consistency of subjective and objective descriptions. Smartphone-based assistance in diagnosing depressive disorders can quickly lead to their identification and provide data for intervention provision.

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The aim of this study was to describe the values and perspectives of nurses regarding medical aid in dying (MAiD). The values of nurses regarding this controversial topic are poorly understood. A cross-sectional electronic survey was sent to American Nurses Association nurse members; 2390 responded; 2043 complete data sets were used for analysis.

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Introduction: There is limited information about how racial and cultural similarities or differences between patient and caregiver may affect quality care. The purpose of this study was to explore caregiving and receiving experiences among older Chinese immigrants and their home health aides by using in-depth interviews in culturally concordant dyads in a community setting.

Methodology: A purposive sample of 10 dyads of older Chinese immigrants and their home health aides were recruited using a snowball sampling method ( = 20).

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Tunable multi-responsive mesoporous silica nanoparticles were prepared by post-condensation/surface modification of MCM-41 nanoparticles. Surface grafting of a poly(N,N-dimethylaminoethyl methacrylate)-based polymer containing disulfide bonds was achieved by a click reaction. Chemical modification, morphological characteristics, and textural properties of the nanoparticles were studied using multiple characterization techniques such as Fourier transform infrared spectroscopy, thermogravimetric analysis, scanning electron microscopy, transmission electron microscopy, small-angle X-ray scattering, and nitrogen adsorption/desorption behavior.

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The long-term administration of vancomycin has increased; however, the pulmonary adverse reactions of long-term vancomycin treatment remain under-studied. A 75-year-old male patient with vertebral osteomyelitis receiving long-term vancomycin therapy developed a fever. High resolution computed tomography showed irregular ground glass opacity and consolidation in the right upper lung.

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Histone acetylation is an epigenetic mechanism that regulates the expression of various genes, such as natural killer group 2, member D (NKG2D) ligands. These NKG2D ligands are the key molecules that activate immune cells expressing the NKG2D receptor. It has been observed that cancer cells overexpress histone deacetylases (HDACs) and show reduced acetylation of nuclear histones.

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Background: Although electronic cigarette (e-cigarette) use among adolescents rapidly has increased over the past decade, which has raised concerns over the corresponding behavioral health risks, the current literature presents limited data for understanding the characteristics of adolescent e-cigarette users.

Objective: The purpose of this study was to (1) identify general characteristics that may be shared between e-cigarette users and traditional cigarette smokers and (2) examine the unique characteristics of e-cigarette users vis-à-vis traditional cigarette smokers.

Design: Cross-sectional descriptive study.

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There are few reports on head-to-head comparisons of electrocardiogram (ECG) monitoring between adhesive single-lead and Holter devices for arrhythmias other than atrial fibrillation (AF). This study aimed to compare 24 h ECG monitoring between the two devices in patients with general arrhythmia. Twenty-nine non-AF patients with a workup of pre-diagnosed arrhythmias or suspicious arrhythmic episodes were evaluated.

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The prognosis of patients with acute leukemia relapsed after allogeneic hematopoietic stem cell transplantation (HSCT) is dismal. We aimed to evaluate the outcomes and prognostic factors of the second HSCT (HSCT2) in acute leukemia patients relapsed after the first HSCT (HSCT1). We analyzed 80 patients who received HSCT2 for relapsed acute leukemia in two Korean institutes.

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Hepatocellular carcinoma (HCC) is the most commonly diagnosed primary liver malignancy. The limited success with relapse of the disease in HCC therapy is frequently associated with the acquired resistance to anticancer drugs. To develop a strategy and design for overcoming the resistance of HCC cells to TNF‑related apoptosis inducing ligand (TRAIL)‑induced cell death, we evaluated the efficacy of a non‑steroidal anti‑inflammatory drug (NSAID) in combination with TRAIL against TRAIL‑resistant HCC cells expressing a high level of CD44.

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