Survey on Alopecia Areata Patients' Reported Factors that Determine Severity of Alopecia Areata: A Nationwide Multicenter Study.

Background: Alopecia areata (AA) is characterized by hair loss on the scalp and body, significantly impacting patients' quality of life based on its severity.

Objective: This study aims to identify crucial factors influencing the perception of severe AA from the patients' viewpoint.

Methods: A web-based survey was conducted among AA patients attending dermatology departments at 21 university hospitals in Korea.

Exploring Traits Associated With Central Sensitization Features in Patients With Chronic Cough.

The concept of cough hypersensitivity suggests that central sensitization plays a role in the pathophysiology of chronic cough. However, it remains unclear which traits are associated with central sensitization features in patients with chronic cough. A cohort of 317 Korean patients with newly referred chronic cough underwent clinical evaluations.

Early management of adult sepsis and septic shock: Korean clinical practice guidelines.

Background: Despite recent advances and global improvements in sepsis recognition and supportive care, mortality rates remain high, and adherence to sepsis bundle components in Korea is low. To address this, the Korean Sepsis Alliance, affiliated with the Korean Society of Critical Care Medicine, developed the first sepsis treatment guidelines for Korea based on a comprehensive systematic review and meta-analysis.

Methods: A de novo method was used to develop the guidelines.

The risk of infective endocarditis according to blood pressure in patients with diabetes: a nationwide population-based study.

Background: We aimed to assess the incidence of infective endocarditis (IE) and evaluate the impact of hypertension (HTN) with underweight on the risk of IE among patients with diabetic mellitus (DM) using a nationwide population-based cohort in Korea.

Methods: We identified 2,603,012 participants (57.4 ± 12.

Artificial Intelligence-Based Fully Automated Quantitative Coronary Angiography vs Optical Coherence Tomography-Guided PCI (FLASH Trial).

Background: Recently developed artificial intelligence-based coronary angiography (AI-QCA, fully automated) provides real-time, objective, and reproducible quantitative analysis of coronary angiography without requiring additional time or labor.

Objectives: This study aimed to evaluate the efficacy of AI-QCA-assisted percutaneous coronary intervention (PCI) compared to optical coherence tomography (OCT)-guided PCI in terms of post-PCI results.

Methods: This trial enrolled 400 patients with significant coronary artery disease undergoing PCI from 13 participating centers in South Korea.

Association between severity of pancreatic exocrine insufficiency and computed tomography-based morphological severity in patients with chronic pancreatitis.

The association between pancreatic exocrine insufficiency (PEI) and morphologic findings in chronic pancreatitis has not yet been fully studied. Thus, the aim of this study was to investigate the correlation between PEI severity and computed tomography (CT)-based morphological severity in patients with chronic pancreatitis. This nationwide survey included 180 Korean participants with chronic pancreatitis aged 18 years or older between January 2018 and December 2021.

Establishment of an In Vitro Embryo-Endometrium Model Using Alginate-Embedded Mouse Embryos and Human Embryoid Body.

Background: Embryo-endometrium cross-talk is one of the critical processes for implantation, and unsuccessful cross-talk leads to infertility. We established an endometrium-embryo (or embryoid bodies, hEBs) in vitro model in 2D and 3D conditions and assessed its potential through the fusion of embryos and the expression of specific markers.

Methods: C57BL/6 mouse embryos and human embryoid body (hEB) derived from embryonic stem cells were prepared as embryo models.

Mental Health Status Profiles of Dentists in South Korea: A Latent Profile Analysis Approach.

Objective: Dentists encounter unique occupational challenges, including stress, depression, and anxiety, that can impact their mental well-being. Therefore, it is essential to identify dentists' mental health statuses and the factors influencing them. Understanding the heterogeneity in dentists' mental health is crucial for tailored interventions.

Immunogenic clearance combined with PD-1 blockade elicits antitumor effect by promoting the recruitment and expansion of the effector memory-like CD8T cell.

Immune checkpoint inhibition shows promise for cancer treatment, but only a minority of patients respond. Combination strategies have been explored to overcome this resistance. Combining immunogenic clearance using immunogenic cell death inducers with a rho kinase inhibitor enhances phagocytosis of immunogenically dying cancer cells by antigen-presenting cells, stimulating tumor-specific immune responses by activating CD8T cells via dendritic cell-mediated priming.

Sample size estimates for biomarker-based outcome measures in clinical trials in autosomal dominant Alzheimer's disease.

Introduction: Alzheimer disease (AD)-modifying therapies are approved for treatment of early-symptomatic AD. Autosomal dominant AD (ADAD) provides a unique opportunity to test therapies in presymptomatic individuals.

Methods: Using data from the Dominantly Inherited Alzheimer Network (DIAN), sample sizes for clinical trials were estimated for various cognitive, imaging, and CSF outcomes.

Biomechanical evaluation of a newly designed locking plate for opening wedge high tibial osteotomy: stress distribution and stability in the presence of lateral hinge fracture.

Background: The study aimed to evaluate whether a new OhtoFix plate reduced stress around the D-hole compared with an old OhtoFix and TomoFix plate. The study also assessed whether the new OhtoFix plate had biomechanical stability in a lateral hinge fracture (LHF).

Methods: A finite element model of the proximal tibia was developed using cross-sectional images from a 62-year-old Asian woman.

Combined Effects of Air Pollution and Changes in Physical Activity With Cardiovascular Disease in Patients With Dyslipidemia.

Background: Sedentary behavior elevates cardiovascular disease (CVD) risk in patients with dyslipidemia. Increasing physical activity (PA) is recommended alongside pharmacological therapy to prevent CVD, though benefits across environmental conditions are unclear.

Methods And Results: We analyzed data from 113 918 newly diagnosed patients with dyslipidemia (2009-2012) without prior CVD, sourced from the Korea National Health Insurance Service.

Continuous preperitoneal versus thoracic epidural analgesia in open pancreatoduodenectomy: randomized clinical trial.

Background: Thoracic epidural analgesia (TEA), once the standard for pain management in major abdominal operations, is associated with postoperative complications, making preperitoneal continuous wound infiltration (CWI) a promising alternative. This study aimed to compare the effectiveness of CWI and TEA in managing postoperative pain after open pancreatoduodenectomy.

Methods: In a single-centre, randomized, open-label non-inferiority trial, adult patients undergoing elective open pancreatoduodenectomy were assigned to either CWI or TEA for pain management.

Privacy-Preserving Synthetic Data Generation Method for IoT-Sensor Network IDS Using CTGAN.

The increased usage of IoT networks brings about new privacy risks, especially when intrusion detection systems (IDSs) rely on large datasets for machine learning (ML) tasks and depend on third parties for storing and training the ML-based IDS. This study proposes a privacy-preserving synthetic data generation method using a conditional tabular generative adversarial network (CTGAN) aimed at maintaining the utility of IoT sensor network data for IDS while safeguarding privacy. We integrate differential privacy (DP) with CTGAN by employing controlled noise injection to mitigate privacy risks.

Development of Imaging Complexity Biomarkers for Prediction of Symptomatic Radiation Pneumonitis in Patients with Non-Small Cell Lung Cancer, Focusing on Underlying Lung Disease.

We aimed to develop imaging biomarkers to predict radiation pneumonitis (RP) in non-small cell lung cancer (NSCLC) patients undergoing thoracic radiotherapy. We hypothesized that measuring morphometric complexity in the lung using simulation computed tomography may provide objective imaging biomarkers for lung parenchyma integrity, potentially forecasting the risk of RP. A retrospective study was performed on medical records of 175 patients diagnosed with NSCLC who had received thoracic radiotherapy.

Unveiling Biomarkers in Head and Neck Squamous Cell Carcinoma through Bioinformatics: The Role of and .

Head and neck squamous cell carcinoma (HNSCC) is the most common form of head and neck cancer, ranking sixth in global cancer incidence. Identifying molecular drivers of tumorigenesis and metastasis is essential for early detection and treatment. This study analyzed gene expression profiles from three datasets (GSE6791, GSE29330, and GSE58911) to identify differentially expressed genes (DEGs) in HNSCC.