1.Gender Difference of Moderated Mediating Effect of Grit Between Occupational Stress and Suicidal Ideation in Korean Workers
Sra JUNG ; Hyejeong JEON ; Mi Yeon LEE ; Eunsoo KIM ; Dong-Won SHIN ; Young-Chul SHIN ; Kang-Seob OH ; Min-Kyoung KIM ; Sang-Won JEON ; Sung Joon CHO
Journal of Korean Medical Science 2024;39(50):e308-
Background:
This study examined gender differences in occupational stress, depressive symptoms, and suicidal ideation by considering the potential moderating effect of grit on Korean employees.
Methods:
A total of 11,369 participants (7,735 men and 3,634 women) aged 19–65 years, employed across 18 private companies and local government organizations in Korea, completed questionnaires including the Short Grit Scale, Korean Occupational Stress Scale, and Center for Epidemiologic Studies Depression Scale between April 2020 and March 2022.Suicidal ideation was assessed based on its presence or absence. Mediation and moderation analyses were performed using the Statistical Package for the Social Sciences PROCESS macro.
Results:
Depressive symptoms partially mediated the relationship between occupational stress and suicidal ideation in male employees, whereas depressive symptoms fully mediated the relationship in female employees. Grit moderated the relationship between depressive symptoms and suicidal ideation in male employees but not in female employees.Furthermore, the moderated mediating effect of grit in male employees on the relationship between occupational stress and suicidal ideation provided less protection in cases of severe depression. The cross-sectional design does not allow for causal inferences.
Conclusion
These findings contribute to understanding of the gender differences in the impact of depressive symptoms on the relationship between occupational stress and suicidal ideation, as well as the protective effect of grit. These findings highlight the need for genderspecific approaches to prevent suicidal ideation among employees.
2.Gender Difference of Moderated Mediating Effect of Grit Between Occupational Stress and Suicidal Ideation in Korean Workers
Sra JUNG ; Hyejeong JEON ; Mi Yeon LEE ; Eunsoo KIM ; Dong-Won SHIN ; Young-Chul SHIN ; Kang-Seob OH ; Min-Kyoung KIM ; Sang-Won JEON ; Sung Joon CHO
Journal of Korean Medical Science 2024;39(50):e308-
Background:
This study examined gender differences in occupational stress, depressive symptoms, and suicidal ideation by considering the potential moderating effect of grit on Korean employees.
Methods:
A total of 11,369 participants (7,735 men and 3,634 women) aged 19–65 years, employed across 18 private companies and local government organizations in Korea, completed questionnaires including the Short Grit Scale, Korean Occupational Stress Scale, and Center for Epidemiologic Studies Depression Scale between April 2020 and March 2022.Suicidal ideation was assessed based on its presence or absence. Mediation and moderation analyses were performed using the Statistical Package for the Social Sciences PROCESS macro.
Results:
Depressive symptoms partially mediated the relationship between occupational stress and suicidal ideation in male employees, whereas depressive symptoms fully mediated the relationship in female employees. Grit moderated the relationship between depressive symptoms and suicidal ideation in male employees but not in female employees.Furthermore, the moderated mediating effect of grit in male employees on the relationship between occupational stress and suicidal ideation provided less protection in cases of severe depression. The cross-sectional design does not allow for causal inferences.
Conclusion
These findings contribute to understanding of the gender differences in the impact of depressive symptoms on the relationship between occupational stress and suicidal ideation, as well as the protective effect of grit. These findings highlight the need for genderspecific approaches to prevent suicidal ideation among employees.
3.Gender Difference of Moderated Mediating Effect of Grit Between Occupational Stress and Suicidal Ideation in Korean Workers
Sra JUNG ; Hyejeong JEON ; Mi Yeon LEE ; Eunsoo KIM ; Dong-Won SHIN ; Young-Chul SHIN ; Kang-Seob OH ; Min-Kyoung KIM ; Sang-Won JEON ; Sung Joon CHO
Journal of Korean Medical Science 2024;39(50):e308-
Background:
This study examined gender differences in occupational stress, depressive symptoms, and suicidal ideation by considering the potential moderating effect of grit on Korean employees.
Methods:
A total of 11,369 participants (7,735 men and 3,634 women) aged 19–65 years, employed across 18 private companies and local government organizations in Korea, completed questionnaires including the Short Grit Scale, Korean Occupational Stress Scale, and Center for Epidemiologic Studies Depression Scale between April 2020 and March 2022.Suicidal ideation was assessed based on its presence or absence. Mediation and moderation analyses were performed using the Statistical Package for the Social Sciences PROCESS macro.
Results:
Depressive symptoms partially mediated the relationship between occupational stress and suicidal ideation in male employees, whereas depressive symptoms fully mediated the relationship in female employees. Grit moderated the relationship between depressive symptoms and suicidal ideation in male employees but not in female employees.Furthermore, the moderated mediating effect of grit in male employees on the relationship between occupational stress and suicidal ideation provided less protection in cases of severe depression. The cross-sectional design does not allow for causal inferences.
Conclusion
These findings contribute to understanding of the gender differences in the impact of depressive symptoms on the relationship between occupational stress and suicidal ideation, as well as the protective effect of grit. These findings highlight the need for genderspecific approaches to prevent suicidal ideation among employees.
4.Gender Difference of Moderated Mediating Effect of Grit Between Occupational Stress and Suicidal Ideation in Korean Workers
Sra JUNG ; Hyejeong JEON ; Mi Yeon LEE ; Eunsoo KIM ; Dong-Won SHIN ; Young-Chul SHIN ; Kang-Seob OH ; Min-Kyoung KIM ; Sang-Won JEON ; Sung Joon CHO
Journal of Korean Medical Science 2024;39(50):e308-
Background:
This study examined gender differences in occupational stress, depressive symptoms, and suicidal ideation by considering the potential moderating effect of grit on Korean employees.
Methods:
A total of 11,369 participants (7,735 men and 3,634 women) aged 19–65 years, employed across 18 private companies and local government organizations in Korea, completed questionnaires including the Short Grit Scale, Korean Occupational Stress Scale, and Center for Epidemiologic Studies Depression Scale between April 2020 and March 2022.Suicidal ideation was assessed based on its presence or absence. Mediation and moderation analyses were performed using the Statistical Package for the Social Sciences PROCESS macro.
Results:
Depressive symptoms partially mediated the relationship between occupational stress and suicidal ideation in male employees, whereas depressive symptoms fully mediated the relationship in female employees. Grit moderated the relationship between depressive symptoms and suicidal ideation in male employees but not in female employees.Furthermore, the moderated mediating effect of grit in male employees on the relationship between occupational stress and suicidal ideation provided less protection in cases of severe depression. The cross-sectional design does not allow for causal inferences.
Conclusion
These findings contribute to understanding of the gender differences in the impact of depressive symptoms on the relationship between occupational stress and suicidal ideation, as well as the protective effect of grit. These findings highlight the need for genderspecific approaches to prevent suicidal ideation among employees.
5.2023 Clinical Practice Guidelines for Diabetes Management in Korea: Full Version Recommendation of the Korean Diabetes Association
Jun Sung MOON ; Shinae KANG ; Jong Han CHOI ; Kyung Ae LEE ; Joon Ho MOON ; Suk CHON ; Dae Jung KIM ; Hyun Jin KIM ; Ji A SEO ; Mee Kyoung KIM ; Jeong Hyun LIM ; Yoon Ju SONG ; Ye Seul YANG ; Jae Hyeon KIM ; You-Bin LEE ; Junghyun NOH ; Kyu Yeon HUR ; Jong Suk PARK ; Sang Youl RHEE ; Hae Jin KIM ; Hyun Min KIM ; Jung Hae KO ; Nam Hoon KIM ; Chong Hwa KIM ; Jeeyun AHN ; Tae Jung OH ; Soo-Kyung KIM ; Jaehyun KIM ; Eugene HAN ; Sang-Man JIN ; Jaehyun BAE ; Eonju JEON ; Ji Min KIM ; Seon Mee KANG ; Jung Hwan PARK ; Jae-Seung YUN ; Bong-Soo CHA ; Min Kyong MOON ; Byung-Wan LEE
Diabetes & Metabolism Journal 2024;48(4):546-708
6.Study Design and Protocol for a Randomized Controlled Trial to Assess Long-Term Efficacy and Safety of a Triple Combination of Ezetimibe, Fenofibrate, and Moderate-Intensity Statin in Patients with Type 2 Diabetes and Modifiable Cardiovascular Risk Factors (ENSEMBLE)
Nam Hoon KIM ; Juneyoung LEE ; Suk CHON ; Jae Myung YU ; In-Kyung JEONG ; Soo LIM ; Won Jun KIM ; Keeho SONG ; Ho Chan CHO ; Hea Min YU ; Kyoung-Ah KIM ; Sang Soo KIM ; Soon Hee LEE ; Chong Hwa KIM ; Soo Heon KWAK ; Yong‐ho LEE ; Choon Hee CHUNG ; Sihoon LEE ; Heung Yong JIN ; Jae Hyuk LEE ; Gwanpyo KOH ; Sang-Yong KIM ; Jaetaek KIM ; Ju Hee LEE ; Tae Nyun KIM ; Hyun Jeong JEON ; Ji Hyun LEE ; Jae-Han JEON ; Hye Jin YOO ; Hee Kyung KIM ; Hyeong-Kyu PARK ; Il Seong NAM-GOONG ; Seongbin HONG ; Chul Woo AHN ; Ji Hee YU ; Jong Heon PARK ; Keun-Gyu PARK ; Chan Ho PARK ; Kyong Hye JOUNG ; Ohk-Hyun RYU ; Keun Yong PARK ; Eun-Gyoung HONG ; Bong-Soo CHA ; Kyu Chang WON ; Yoon-Sok CHUNG ; Sin Gon KIM
Endocrinology and Metabolism 2024;39(5):722-731
Background:
Atherogenic dyslipidemia, which is frequently associated with type 2 diabetes (T2D) and insulin resistance, contributes to the development of vascular complications. Statin therapy is the primary approach to dyslipidemia management in T2D, however, the role of non-statin therapy remains unclear. Ezetimibe reduces cholesterol burden by inhibiting intestinal cholesterol absorption. Fibrates lower triglyceride levels and increase high-density lipoprotein cholesterol (HDL-C) levels via peroxisome proliferator- activated receptor alpha agonism. Therefore, when combined, these drugs effectively lower non-HDL-C levels. Despite this, few clinical trials have specifically targeted non-HDL-C, and the efficacy of triple combination therapies, including statins, ezetimibe, and fibrates, has yet to be determined.
Methods:
This is a multicenter, prospective, randomized, open-label, active-comparator controlled trial involving 3,958 eligible participants with T2D, cardiovascular risk factors, and elevated non-HDL-C (≥100 mg/dL). Participants, already on moderate-intensity statins, will be randomly assigned to either Ezefeno (ezetimibe/fenofibrate) addition or statin dose-escalation. The primary end point is the development of a composite of major adverse cardiovascular and diabetic microvascular events over 48 months.
Conclusion
This trial aims to assess whether combining statins, ezetimibe, and fenofibrate is as effective as, or possibly superior to, statin monotherapy intensification in lowering cardiovascular and microvascular disease risk for patients with T2D. This could propose a novel therapeutic approach for managing dyslipidemia in T2D.
7.UCHL1 Overexpression Is Related to the Aggressive Phenotype of Non-small Cell Lung Cancer
Chi Young KIM ; Eun Hye LEE ; Se Hyun KWAK ; Sang Hoon LEE ; Eun Young KIM ; Min Kyoung PARK ; Yoon Jin CHA ; Yoon Soo CHANG
Tuberculosis and Respiratory Diseases 2024;87(4):494-504
Background:
Ubiquitin C-terminal hydrolase L1 (UCHL1), which encodes thiol protease that hydrolyzes a peptide bond at the C-terminal glycine residue of ubiquitin, regulates cell differentiation, proliferation, transcriptional regulation, and numerous other biological processes and may be involved in lung cancer progression. UCHL1 is mainly expressed in the brain and plays a tumor-promoting role in a few cancer types; however, there are limited reports regarding its role in lung cancer.
Methods:
Single-cell RNA (scRNA) sequencing using 10X chromium v3 was performed on a paired normal-appearing and tumor tissue from surgical specimens of a patient who showed unusually rapid progression. To validate clinical implication of the identified biomarkers, immunohistochemical (IHC) analysis was performed on 48 non-small cell lung cancer (NSCLC) tissue specimens, and the correlation with clinical parameters was evaluated.
Results:
We identified 500 genes overexpressed in tumor tissue compared to those in normal tissue. Among them, UCHL1, brain expressed X-linked 3 (BEX3), and midkine (MDK), which are associated with tumor growth and progression, exhibited a 1.5-fold increase in expression compared to that in normal tissue. IHC analysis of NSCLC tissues showed that only UCHL1 was specifically overexpressed. Additionally, in 48 NSCLC specimens, UCHL1 was specifically upregulated in the cytoplasm and nuclear membrane of tumor cells. Multivariable logistic analysis identified several factors, including smoking, tumor size, and high-grade dysplasia, to be typically associated with UCHL1 overexpression. Survival analyses using The Cancer Genome Atlas (TCGA) datasets revealed that UCHL1 overexpression is substantially associated with poor survival outcomes. Furthermore, a strong association was observed between UCHL1 expression and the clinicopathological features of patients with NSCLC.
Conclusion
UCHL1 overexpression was associated with smoking, tumor size, and high-grade dysplasia, which are typically associated with a poor prognosis and survival outcome. These findings suggest that UCHL1 may serve as an effective biomarker of NSCLC.
8.Percutaneous radiofrequency ablation of hepatocellular carcinoma in a recent cohort at a tertiary cancer center: incidence and factors associated with major complications and unexpected hospitalization events
Min Geun JO ; Min Woo LEE ; Soohyun AHN ; Tae Wook KANG ; Kyoung Doo SONG ; Dong Ik CHA ; Ji Hye MIN ; Hyunchul RHIM
Ultrasonography 2023;42(1):41-53
Purpose:
This study aimed to assess the incidence of and factors associated with major complications, delayed discharge, and emergency room (ER) visits or readmission after percutaneous radiofrequency ablation (RFA) for single hepatocellular carcinoma (HCC) <3 cm in a recent cohort at a tertiary cancer center.
Methods:
A total of 188 patients with treatment-naïve single HCCs <3 cm who underwent RFA between January 2018 and April 2021 were included in the analysis. Univariable and multivariable logistic regression analyses were performed to identify the factors associated with major complications, delayed discharge, and ER visits or readmission. Local tumor progression (LTP) and overall survival were estimated using the Kaplan-Meier method and Cox proportional-hazards regression analysis.
Results:
Major complications occurred in 3.2% (6/188) of the patients. The longest diameter of the ablation zone was significantly larger in patients with major complications (P=0.023). Delayed discharge occurred in 5.8% (9/188) of the patients, for which albumin-bilirubin grade 3 was identified as an important determinant. No variables other than major complications were significantly associated with ER visits or readmission, which occurred in 7.0% (13/188) of the patients. Major complications, delayed discharge, and ER visits or readmission were not substantially related to the post-treatment outcomes of LTP and overall survival.
Conclusion
This study confirmed RFA as a highly safe procedure for single HCCs <3 cm, despite the rapidly changing RFA techniques in the most recent cohort. A large ablation zone and poor liver function were predictors of major complications and delayed discharge, respectively.
9.Comparing the Expression of Canonical and Non-Canonical Inflammasomes Across Glioma Grades: Evaluating Their Potential as an Aggressiveness Marker
Yu Jin KIM ; Wooseok CHOI ; JeongMin SIM ; Ju Won AHN ; JeongMan PARK ; Dongkil KIM ; Ju-Yeon JEONG ; Ji Min LEE ; Kyunggi CHO ; Jong-Seok MOON ; Ju Hyung MOON ; Kyoung Su SUNG ; Jaejoon LIM
Brain Tumor Research and Treatment 2023;11(3):191-203
Background:
Inflammasomes are key in the initiation of inflammatory responses and serve to de-fend the organism. However, when the immune system is imbalanced, these complexes contribute to tumor progression. The purpose of this study was to investigate the effect of non-canonical inflammasomes on glioma malignancy.
Methods:
We performed bioinformatics analysis to confirm the expression of canonical andnon-canonical inflammasome-related molecules according to the degree of malignancy through immunohistochemical examination of glioma tissues obtained with patient consent from our institution.
Results:
Bioinformatics analysis confirmed that the expression levels of non-canonical inflam-masome-related molecules were significantly higher in tumor tissues than in normal tissues, and they also increased according to malignancy, which adversely affected the survival rate. Furthermore, in gliomas, positive correlations were found between N-form gasdermin-D, a key molecule associated with the non-canonical inflammasome, and other related molecules, including NLRP3, caspase-1, caspase-4, and caspase-5. These results were verified by immunohistochemical examination of glioma tissues, and the expression levels of these molecules also increased significantly with increasing grade.In addition, the features of pyroptosis were confirmed.
Conclusion
This study identified the potential of non-canonical inflammasomes as aggressiveness markers for gliomas and presented a perspective for improving glioma treatment.
10.Clinical Practice Guidelines for Oropharyngeal Dysphagia
Seoyon YANG ; Jin-Woo PARK ; Kyunghoon MIN ; Yoon Se LEE ; Young-Jin SONG ; Seong Hee CHOI ; Doo Young KIM ; Seung Hak LEE ; Hee Seung YANG ; Wonjae CHA ; Ji Won KIM ; Byung-Mo OH ; Han Gil SEO ; Min-Wook KIM ; Hee-Soon WOO ; Sung-Jong PARK ; Sungju JEE ; Ju Sun OH ; Ki Deok PARK ; Young Ju JIN ; Sungjun HAN ; DooHan YOO ; Bo Hae KIM ; Hyun Haeng LEE ; Yeo Hyung KIM ; Min-Gu KANG ; Eun-Jae CHUNG ; Bo Ryun KIM ; Tae-Woo KIM ; Eun Jae KO ; Young Min PARK ; Hanaro PARK ; Min-Su KIM ; Jungirl SEOK ; Sun IM ; Sung-Hwa KO ; Seong Hoon LIM ; Kee Wook JUNG ; Tae Hee LEE ; Bo Young HONG ; Woojeong KIM ; Weon-Sun SHIN ; Young Chan LEE ; Sung Joon PARK ; Jeonghyun LIM ; Youngkook KIM ; Jung Hwan LEE ; Kang-Min AHN ; Jun-Young PAENG ; JeongYun PARK ; Young Ae SONG ; Kyung Cheon SEO ; Chang Hwan RYU ; Jae-Keun CHO ; Jee-Ho LEE ; Kyoung Hyo CHOI
Journal of the Korean Dysphagia Society 2023;13(2):77-106
Objective:
Dysphagia is a common clinical condition characterized by difficulty in swallowing. It is sub-classified into oropharyngeal dysphagia, which refers to problems in the mouth and pharynx, and esophageal dysphagia, which refers to problems in the esophageal body and esophagogastric junction. Dysphagia can have a significant negative impact one’s physical health and quality of life as its severity increases. Therefore, proper assessment and management of dysphagia are critical for improving swallowing function and preventing complications. Thus a guideline was developed to provide evidence-based recommendations for assessment and management in patients with dysphagia.
Methods:
Nineteen key questions on dysphagia were developed. These questions dealt with various aspects of problems related to dysphagia, including assessment, management, and complications. A literature search for relevant articles was conducted using Pubmed, Embase, the Cochrane Library, and one domestic database of KoreaMed, until April 2021. The level of evidence and recommendation grade were established according to the Grading of Recommendation Assessment, Development and Evaluation methodology.
Results:
Early screening and assessment of videofluoroscopic swallowing were recommended for assessing the presence of dysphagia. Therapeutic methods, such as tongue and pharyngeal muscle strengthening exercises and neuromuscular electrical stimulation with swallowing therapy, were effective in improving swallowing function and quality of life in patients with dysphagia. Nutritional intervention and an oral care program were also recommended.
Conclusion
This guideline presents recommendations for the assessment and management of patients with oropharyngeal dysphagia, including rehabilitative strategies.

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