Background/Aims: A few studies have suggested the association between Helicobacter pylori (HP) infection and ischemic stroke. However, the impact of HP eradication on stroke risk has not been well evaluated. This study aimed to assess the influence of HP eradication on the incidence of ischemic stroke, considering the potential effect of sex. Methods: This prospective observational cohort study was conducted at Seoul National University Bundang Hospital, from May 2003 to February 2023, and involved gastroscopy-based HP testing. Propensity score (PS) matching was employed to ensure balanced groups by matching patients in the HP eradicated group (n=2,803) in a 3:1 ratio with patients in the HP non-eradicated group (n=960). Cox proportional hazard regression analysis was used to evaluate the risk of ischemic stroke. Results: Among 6,664 patients, multivariate analysis after PS matching indicated that HP eradication did not significantly alter the risk of ischemic stroke (hazard ratio, 0.531; 95% confidence interval, 0.221 to 1.270; p=0.157). Sex-specific subgroup analyses, both univariate and multivariate, did not yield statistically significant differences. However, Kaplan-Meier analysis revealed a potential trend: the females in the HP eradicated group exhibited a lower incidence of ischemic stroke than those in the HP non-eradicated group, although this did not reach statistical significance (p=0.057). Conclusions This finding suggests that HP eradication might not impact the risk of ischemic stroke. However, there was a trend showing that females potentially had a lower risk of ischemic stroke following HP eradication, though further investigation is required to establish definitive evidence.

Objective: We aimed to investigate whether image standardization using deep learning-based computed tomography (CT) image conversion would improve the performance of deep learning-based automated hepatic segmentation across various reconstruction methods. Materials and Methods: We collected contrast-enhanced dual-energy CT of the abdomen that was obtained using various reconstruction methods, including filtered back projection, iterative reconstruction, optimum contrast, and monoenergetic images with 40, 60, and 80 keV. A deep learning based image conversion algorithm was developed to standardize the CT images using 142 CT examinations (128 for training and 14 for tuning). A separate set of 43 CT examinations from 42 patients (mean age, 10.1 years) was used as the test data. A commercial software program (MEDIP PRO v2.0.0.0, MEDICALIP Co. Ltd.) based on 2D U-NET was used to create liver segmentation masks with liver volume. The original 80 keV images were used as the ground truth. We used the paired t-test to compare the segmentation performance in the Dice similarity coefficient (DSC) and difference ratio of the liver volume relative to the ground truth volume before and after image standardization. The concordance correlation coefficient (CCC) was used to assess the agreement between the segmented liver volume and ground-truth volume. Results: The original CT images showed variable and poor segmentation performances. The standardized images achieved significantly higher DSCs for liver segmentation than the original images (DSC [original, 5.40%–91.27%] vs. [standardized, 93.16%–96.74%], all P < 0.001). The difference ratio of liver volume also decreased significantly after image conversion (original, 9.84%–91.37% vs. standardized, 1.99%–4.41%). In all protocols, CCCs improved after image conversion (original, -0.006–0.964 vs. standardized, 0.990–0.998). Conclusion Deep learning-based CT image standardization can improve the performance of automated hepatic segmentation using CT images reconstructed using various methods. Deep learning-based CT image conversion may have the potential to improve the generalizability of the segmentation network.

OBJECTIVES: This study aimed to evaluate the addiction to highly caffeinated drinks among university students, and we investigated the relationships between smartphone addiction, depression, anxiety, attention-deficit/hyperactivity disorder (ADHD), burnout, self-esteem, impulsiveness in high caffeine drink addiction risk group (high caffeine group). We also compared these mental health factors differences between the high caffeine group and the control group; and, investigated the relative risk between the independent variables of the high caffeine group. METHODS: This study was conducted in Korea, from June 2015 to July 2016. A set of questionnaires was administered on 511 college students. RESULTS: The participants who belonged to the high caffeine group were more likely to demonstrate the symptoms of ADHD and higher levels of burnout and impulsiveness. Further, the results of logistic regression analysis confirmed the association between the high caffeine group and burnout. CONCLUSION: These behaviors among university students addicted to highly caffeinated drinks suggests the need for timely and effective interventions for those at risk of addiction.
Anxiety ; Caffeine ; Depression ; Humans ; Korea ; Logistic Models ; Mental Health ; Smartphone

Cardiovascular disease is the most common cause of death in diabetic patients. Hyperglycemia is the primary characteristic of diabetes and is associated with many complications. The role of hyperglycemia in the dysfunction of human cardiac progenitor cells that can regenerate damaged cardiac tissue has been investigated, but the exact mechanism underlying this association is not clear. Thus, we examined whether hyperglycemia could regulate mitochondrial dynamics and lead to cardiac progenitor cell dysfunction, and whether blocking glucose uptake could rescue this dysfunction. High glucose in cardiac progenitor cells results in reduced cell viability and decreased expression of cell cycle-related molecules, including CDK2 and cyclin E. A tube formation assay revealed that hyperglycemia led to a significant decrease in the tube-forming ability of cardiac progenitor cells. Fluorescent labeling of cardiac progenitor cell mitochondria revealed that hyperglycemia alters mitochondrial dynamics and increases expression of fission-related proteins, including Fis1 and Drp1. Moreover, we showed that specific blockage of GLUT1 improved cell viability, tube formation, and regulation of mitochondrial dynamics in cardiac progenitor cells. To our knowledge, this study is the first to demonstrate that high glucose leads to cardiac progenitor cell dysfunction through an increase in mitochondrial fission, and that a GLUT1 blocker can rescue cardiac progenitor cell dysfunction and downregulation of mitochondrial fission. Combined therapy with cardiac progenitor cells and a GLUT1 blocker may provide a novel strategy for cardiac progenitor cell therapy in cardiovascular disease patients with diabetes.
Cardiovascular Diseases ; Cause of Death ; Cell Survival ; Cyclin E ; Cyclins ; Diabetic Cardiomyopathies ; Down-Regulation ; Glucose* ; Humans* ; Hyperglycemia ; Mitochondria ; Mitochondrial Dynamics* ; Stem Cells*

No abstract available.
Leiomyosarcoma* ; Neoplasm Metastasis* ; Scalp* ; Skin

Ultrasound (US) elastography is a valuable imaging technique for tissue characterization. Two main types of elastography, strain and shear-wave, are commonly used to image breast tissue. The use of elastography is expected to increase, particularly with the increased use of US for breast screening. Recently, the US elastographic features of breast masses have been incorporated into the 2nd edition of the Breast Imaging Reporting and Data System (BI-RADS) US lexicon as associated findings. This review suggests practical guidelines for breast US elastography in consensus with the Korean Breast Elastography Study Group, which was formed in August 2013 to perform a multicenter prospective study on the use of elastography for US breast screening. This article is focused on the role of elastography in combination with B-mode US for the evaluation of breast masses. Practical tips for adequate data acquisition and the interpretation of elastography results are also presented.
Breast* ; Consensus ; Elasticity Imaging Techniques* ; Information Systems ; Mass Screening ; Ultrasonography*

No abstract available.
Multiple Myeloma* ; Bortezomib

OBJECTIVES: The aim of this study is to develop Treatment Guidelines for Alcohol Use Disorder-the Korean Addiction Treatment Guidelines-using the Adaptation method. METHODS AND PROCEDURES: As the Adaptation method of Guidelines, the ADAPTE Manual, which is developed by ADAPTE collaboration is applied. In Part 1 : preparatory work prior to the beginning of Adaptation is performed. In Part 2 : the core phase of the Adaptation in which we searched the guidelines and performed a systematic review of the literature. The two guidelines (of the AU and the UK) are selected by gone through the methodological quality and currency evaluation for guidelines. And, in order to choose the proper recommendations, the contents were evaluated with regard to the applicability and acceptability of guidelines to the domestic. Finally, in Part 3 : the adapted guideline is reviewed externally, with review and plan update. Therefore, in this way, the Korean Guidelines for Treatment of Alcohol Use Disorder, comprised of 55 recommendations, was developed. CONCLUSION: In this study, Korean Guidelines for Treatment of Alcohol Use Disorder were developed by application of the Adaptation method of ADAPTE. These are the first evidence-based Korean Guidelines for Treatment of Alcohol Use Disorder, which were modified and accepted in accordance with Korean circumstances within the range not damaging the validity of the treatment worth, and it is expected to contribute to improvement in quality and efficiency enhancement of Korean treatment of Alcohol Use Disorder.
Cooperative Behavior

Rowell's syndrome is a rare entity consisting of lupus erythematosus with associated erythema multiforme-like lesions and characteristic immunological findings, and it was first described by Rowell et al. in 1963. Because of the clinical similarities between subacute cutaneous lupus erythematosus and Rowell's syndrome, it is difficult to clinically distinguish between the annular-polycyclic type of subacute cutaneous lupus erythematosus and Rowell's syndrome. We report a case of 18-year-old woman with systemic lupus erythematosus who presented erythema multiforme-like eruptions on both thighs. Simultaneously, she developed urticarial-like rashes on her trunk consistent with atypical skin lesion of lupus erythematosus. She also developed a positive antinuclear antibody with speckled pattern and positive anti-Ro antibody.
Antibodies, Antinuclear ; Erythema ; Erythema Multiforme ; Exanthema ; Female ; Humans ; Lupus Erythematosus, Cutaneous ; Lupus Erythematosus, Systemic ; Skin ; Thigh