1.Expression of PD-1/PD-L1 pathway molecules in human cardiac allograft according to acute cellular rejection status: insights from a Korean Heart Transplant Cohort
Jeemin YIM ; Yoon Kyung JEON ; Doo Hyun CHUNG ; Jaemoon KOH
Journal of Pathology and Translational Medicine 2026;60(3):319-330
Acute cellular rejection (ACR) following heart transplantation (TPL) compromises graft function and survival. The programmed cell death-1 (PD-1)/PD-1 ligand-1 (PD-L1) pathway represents an immune checkpoint that maintains peripheral immune tolerance, but its expression and significance in human cardiac allografts with ACR remain unclear. Thus, we investigated PD-1/ PD-L1 expression in endomyocardial biopsies from heart TPL recipients to clarify the role of this pathway in the ACR of human cardiac allografts and explore the potential of therapeutic modulation of PD-1/PD-L1 in this setting. Methods: Endomyocardial biopsies of 78 patients with heart TPL were subjected to immunohistochemistry for PD-L1, PD-1, CD4, and CD8. PD-L1 expression and quantities of PD-1+, CD4+, and CD8+ infiltrating lymphocytes were evaluated according to clinicopathological features, ACR presence, and clinical outcomes. Results: Allografts with high-grade ACR (International Society for Heart and Lung Transplantation grades 2R and 3R) demonstrated markedly higher PD-L1 expression than did those without ACR (62.5% vs. 16.1%, p < .001). PD-L1 expression was positively associated with CD4+ lymphocyte infiltration (p = .025), whereas CD8 and PD-1+ lymphocyte counts were higher in PD-L1-positive allografts without reaching statistical significance (p = .059 and p = .390, respectively). Serial biopsies revealed that PD-L1 expression was upregulated in patients with high-grade ACR compared with that in previous non-ACR tissues, and follow-up biopsies were performed after ACR resolution. Conclusions: The PD-1/PD-L1 pathway is involved in ACR regulation in human cardiac allografts. Increased PD-L1 expression during ACR may represent a counteractive mechanism to limit alloimmune-mediated tissue injury, supporting PD-1/PD-L1 as a potential therapeutic target in heart TPL recipients.
2.Temperamental and Neurocognitive Predictors in Korean Basketball League Draft Selection
Kyungjin OH ; Jea Woog LEE ; Kyung Doo KANG ; Doug Hyun HAN
Psychiatry Investigation 2025;22(1):66-74
Objective:
This study hypothesized that physical status, temperament and characteristics, and neurocognitive functions of basketball players could predict the result of Korean Basketball League (KBL) draft selection.
Methods:
We recruited the number of 89 college elite basketball players (KBL selection, n=44; non-KBL selection, n=45), and the number of 82 age-matched healthy comparison subjects who major in sports education in college. All participants were assessed with the Temperament and Character Inventory, Sports Anxiety Scales, Beck Depression Inventory, Perceived Stress Scale-10, Trail Making Test, and Computerized Neuro-cognitive Test for Emotional Perception and Mental Rotation.
Results:
Current results showed that physical status, temperament and characteristics, and neurocognitive functions of college basketball players could predict the KBL draft selection. Among temperament and characteristics, novelty seeking and reward dependence were associated with KBL draft selection. The basketball performances including average scores and average rebound were associated with Emotional Perception and Mental Rotation.
Conclusion
In order to be a good basketball player for a long time, it was confirmed that temperamental factors and neurocognitive factors were very closely related. Furthermore, it is also judged that these results can be used as basic data to predict potential professional basketball players.
3.Temperamental and Neurocognitive Predictors in Korean Basketball League Draft Selection
Kyungjin OH ; Jea Woog LEE ; Kyung Doo KANG ; Doug Hyun HAN
Psychiatry Investigation 2025;22(1):66-74
Objective:
This study hypothesized that physical status, temperament and characteristics, and neurocognitive functions of basketball players could predict the result of Korean Basketball League (KBL) draft selection.
Methods:
We recruited the number of 89 college elite basketball players (KBL selection, n=44; non-KBL selection, n=45), and the number of 82 age-matched healthy comparison subjects who major in sports education in college. All participants were assessed with the Temperament and Character Inventory, Sports Anxiety Scales, Beck Depression Inventory, Perceived Stress Scale-10, Trail Making Test, and Computerized Neuro-cognitive Test for Emotional Perception and Mental Rotation.
Results:
Current results showed that physical status, temperament and characteristics, and neurocognitive functions of college basketball players could predict the KBL draft selection. Among temperament and characteristics, novelty seeking and reward dependence were associated with KBL draft selection. The basketball performances including average scores and average rebound were associated with Emotional Perception and Mental Rotation.
Conclusion
In order to be a good basketball player for a long time, it was confirmed that temperamental factors and neurocognitive factors were very closely related. Furthermore, it is also judged that these results can be used as basic data to predict potential professional basketball players.
4.Temperamental and Neurocognitive Predictors in Korean Basketball League Draft Selection
Kyungjin OH ; Jea Woog LEE ; Kyung Doo KANG ; Doug Hyun HAN
Psychiatry Investigation 2025;22(1):66-74
Objective:
This study hypothesized that physical status, temperament and characteristics, and neurocognitive functions of basketball players could predict the result of Korean Basketball League (KBL) draft selection.
Methods:
We recruited the number of 89 college elite basketball players (KBL selection, n=44; non-KBL selection, n=45), and the number of 82 age-matched healthy comparison subjects who major in sports education in college. All participants were assessed with the Temperament and Character Inventory, Sports Anxiety Scales, Beck Depression Inventory, Perceived Stress Scale-10, Trail Making Test, and Computerized Neuro-cognitive Test for Emotional Perception and Mental Rotation.
Results:
Current results showed that physical status, temperament and characteristics, and neurocognitive functions of college basketball players could predict the KBL draft selection. Among temperament and characteristics, novelty seeking and reward dependence were associated with KBL draft selection. The basketball performances including average scores and average rebound were associated with Emotional Perception and Mental Rotation.
Conclusion
In order to be a good basketball player for a long time, it was confirmed that temperamental factors and neurocognitive factors were very closely related. Furthermore, it is also judged that these results can be used as basic data to predict potential professional basketball players.
5.Temperamental and Neurocognitive Predictors in Korean Basketball League Draft Selection
Kyungjin OH ; Jea Woog LEE ; Kyung Doo KANG ; Doug Hyun HAN
Psychiatry Investigation 2025;22(1):66-74
Objective:
This study hypothesized that physical status, temperament and characteristics, and neurocognitive functions of basketball players could predict the result of Korean Basketball League (KBL) draft selection.
Methods:
We recruited the number of 89 college elite basketball players (KBL selection, n=44; non-KBL selection, n=45), and the number of 82 age-matched healthy comparison subjects who major in sports education in college. All participants were assessed with the Temperament and Character Inventory, Sports Anxiety Scales, Beck Depression Inventory, Perceived Stress Scale-10, Trail Making Test, and Computerized Neuro-cognitive Test for Emotional Perception and Mental Rotation.
Results:
Current results showed that physical status, temperament and characteristics, and neurocognitive functions of college basketball players could predict the KBL draft selection. Among temperament and characteristics, novelty seeking and reward dependence were associated with KBL draft selection. The basketball performances including average scores and average rebound were associated with Emotional Perception and Mental Rotation.
Conclusion
In order to be a good basketball player for a long time, it was confirmed that temperamental factors and neurocognitive factors were very closely related. Furthermore, it is also judged that these results can be used as basic data to predict potential professional basketball players.
6.Temperamental and Neurocognitive Predictors in Korean Basketball League Draft Selection
Kyungjin OH ; Jea Woog LEE ; Kyung Doo KANG ; Doug Hyun HAN
Psychiatry Investigation 2025;22(1):66-74
Objective:
This study hypothesized that physical status, temperament and characteristics, and neurocognitive functions of basketball players could predict the result of Korean Basketball League (KBL) draft selection.
Methods:
We recruited the number of 89 college elite basketball players (KBL selection, n=44; non-KBL selection, n=45), and the number of 82 age-matched healthy comparison subjects who major in sports education in college. All participants were assessed with the Temperament and Character Inventory, Sports Anxiety Scales, Beck Depression Inventory, Perceived Stress Scale-10, Trail Making Test, and Computerized Neuro-cognitive Test for Emotional Perception and Mental Rotation.
Results:
Current results showed that physical status, temperament and characteristics, and neurocognitive functions of college basketball players could predict the KBL draft selection. Among temperament and characteristics, novelty seeking and reward dependence were associated with KBL draft selection. The basketball performances including average scores and average rebound were associated with Emotional Perception and Mental Rotation.
Conclusion
In order to be a good basketball player for a long time, it was confirmed that temperamental factors and neurocognitive factors were very closely related. Furthermore, it is also judged that these results can be used as basic data to predict potential professional basketball players.
7.Clinical Practice Guidelines for Diagnosis and Non-Surgical Treatment of Primary Frozen Shoulder
Byung Chan LEE ; Gi-Wook KIM ; Keewon KIM ; Nackhwan KIM ; Dong Hwan KIM ; Doo Young KIM ; Du Hwan KIM ; Beom Suk KIM ; Seong Hun KIM ; In Jong KIM ; Hyun Jung KIM ; Yoonju NA ; Kyung Eun NAM ; Sung Gyu MOON ; Chang-Won MOON ; Kyunghoon MIN ; Donghwi PARK ; Myung Woo PARK ; Yong Bok PARK ; Jae Hyeon PARK ; Chul-Hyun PARK ; Hyeng-Kyu PARK ; Yunsoo SOH ; Jaeki AHN ; Seoyon YANG ; Kyeong Eun UHM ; Sun Jae WON ; Yu Hui WON ; Dong Hwan YUN ; Yu Sung YOON ; Jin A YOON ; Byeong-Ju LEE ; Woo Hyung LEE ; Yun Jung LEE ; Jae-Hyun LEE ; Jong Hwa LEE ; Yu Jin IM ; Jae-Young LIM ; Min Cheol CHANG ; Sung Joon CHUNG ; Il Young JUNG ; Sungju JEE ; Kyoung Hyo CHOI ; Jong-Moon HWANG ; Jae-Young HAN
Clinical Pain 2025;24(1):1-26
Objective:
Primary frozen shoulder causes significant pain and progressively restricts shoulder movements. Diagnosis is made clinically based on patient history and physical examination. Management is mainly non-invasive owing to its self-limiting clinical course. However, clinical practice guidelines for frozen shoulder have not yet been developed in Korea. The developed guidelines aim to provide evidence-based recommendations for the diagnosis and treatment of frozen shoulder.
Methods:
A guideline development committee reviewed the literature from four databases (PubMed, Embase, Cochrane Library, and KMbase). Using the Population, Intervention, Comparator, and Outcome (PICO) framework, the committee formulated two backgrounds and 16 key questions to address common clinical concerns. Recommendations were made using the Grading of Recommendations, Assessment, Development, and Evaluation framework.
Results:
Diabetes, thyroid disease, and dyslipidemia significantly increase the risk of developing a frozen shoulder. Although frozen shoulder is often self-limiting, some patients may experience long-term functional disabilities. Ultrasound and magnetic resonance imaging should be used as adjunctive tools alongside clinical diagnosis, and rather than as independent diagnostic methods. Noninvasive approaches, such as medications, physical modalities, exercises, electrical stimulation, and manual therapy, may reduce pain and improve shoulder function. Other noninvasive interventions have limited evidence, and their application should be based on clinical judgment. Intra-articular steroid injections are recommended for treatment, and physiotherapy or hydrodilation with steroid injections can also be beneficial.
Conclusion
These guidelines provide evidence-based recommendations for diagnosing and treating primary frozen shoulder.
8.Efficacy and Safety of Lurasidone vs. Quetiapine XR in Acutely Psychotic Patients With Schizophrenia in Korea: A Randomized, Double-Blind, Active-Controlled Trial
Se Hyun KIM ; Do-Un JUNG ; Do Hoon KIM ; Jung Sik LEE ; Kyoung-Uk LEE ; Seunghee WON ; Bong Ju LEE ; Sung-Gon KIM ; Sungwon ROH ; Jong-Ik PARK ; Minah KIM ; Sung Won JUNG ; Hong Seok OH ; Han-yong JUNG ; Sang Hoon KIM ; Hyun Seung CHEE ; Jong-Woo PAIK ; Kyu Young LEE ; Soo In KIM ; Seung-Hwan LEE ; Eun-Jin CHEON ; Hye-Geum KIM ; Heon-Jeong LEE ; In Won CHUNG ; Joonho CHOI ; Min-Hyuk KIM ; Seong-Jin CHO ; HyunChul YOUN ; Jhin-Goo CHANG ; Hoo Rim SONG ; Euitae KIM ; Won-Hyoung KIM ; Chul Eung KIM ; Doo-Heum PARK ; Byung-Ook LEE ; Jungsun LEE ; Seung-Yup LEE ; Nuree KANG ; Hee Yeon JUNG
Psychiatry Investigation 2024;21(7):762-771
Objective:
This study was performed to evaluate the efficacy and safety of lurasidone (160 mg/day) compared to quetiapine XR (QXR; 600 mg/day) in the treatment of acutely psychotic patients with schizophrenia.
Methods:
Patients were randomly assigned to 6 weeks of double-blind treatment with lurasidone 160 mg/day (n=105) or QXR 600 mg/day (n=105). Primary efficacy measure was the change from baseline to week 6 in Positive and Negative Syndrome Scale (PANSS) total score and Clinical Global Impressions severity (CGI-S) score. Adverse events, body measurements, and laboratory parameters were assessed.
Results:
Lurasidone demonstrated non-inferiority to QXR on the PANSS total score. Adjusted mean±standard error change at week 6 on the PANSS total score was -26.42±2.02 and -27.33±2.01 in the lurasidone and QXR group, respectively. The mean difference score was -0.91 (95% confidence interval -6.35–4.53). The lurasidone group showed a greater reduction in PANSS total and negative subscale on week 1 and a greater reduction in end-point CGI-S score compared to the QXR group. Body weight, body mass index, and waist circumference in the lurasidone group were reduced, with significantly lower mean change compared to QXR. Endpoint changes in glucose, cholesterol, triglycerides, and low-density lipoprotein levels were also significantly lower. The most common adverse drug reactions with lurasidone were akathisia and nausea.
Conclusion
Lurasidone 160 mg/day was found to be non-inferior to QXR 600 mg/day in the treatment of schizophrenia with comparable efficacy and tolerability. Adverse effects of lurasidone were generally tolerable, and beneficial effects on metabolic parameters can be expected.
9.Efficacy and Safety of Metformin and Atorvastatin Combination Therapy vs. Monotherapy with Either Drug in Type 2 Diabetes Mellitus and Dyslipidemia Patients (ATOMIC): Double-Blinded Randomized Controlled Trial
Jie-Eun LEE ; Seung Hee YU ; Sung Rae KIM ; Kyu Jeung AHN ; Kee-Ho SONG ; In-Kyu LEE ; Ho-Sang SHON ; In Joo KIM ; Soo LIM ; Doo-Man KIM ; Choon Hee CHUNG ; Won-Young LEE ; Soon Hee LEE ; Dong Joon KIM ; Sung-Rae CHO ; Chang Hee JUNG ; Hyun Jeong JEON ; Seung-Hwan LEE ; Keun-Young PARK ; Sang Youl RHEE ; Sin Gon KIM ; Seok O PARK ; Dae Jung KIM ; Byung Joon KIM ; Sang Ah LEE ; Yong-Hyun KIM ; Kyung-Soo KIM ; Ji A SEO ; Il Seong NAM-GOONG ; Chang Won LEE ; Duk Kyu KIM ; Sang Wook KIM ; Chung Gu CHO ; Jung Han KIM ; Yeo-Joo KIM ; Jae-Myung YOO ; Kyung Wan MIN ; Moon-Kyu LEE
Diabetes & Metabolism Journal 2024;48(4):730-739
Background:
It is well known that a large number of patients with diabetes also have dyslipidemia, which significantly increases the risk of cardiovascular disease (CVD). This study aimed to evaluate the efficacy and safety of combination drugs consisting of metformin and atorvastatin, widely used as therapeutic agents for diabetes and dyslipidemia.
Methods:
This randomized, double-blind, placebo-controlled, parallel-group and phase III multicenter study included adults with glycosylated hemoglobin (HbA1c) levels >7.0% and <10.0%, low-density lipoprotein cholesterol (LDL-C) >100 and <250 mg/dL. One hundred eighty-five eligible subjects were randomized to the combination group (metformin+atorvastatin), metformin group (metformin+atorvastatin placebo), and atorvastatin group (atorvastatin+metformin placebo). The primary efficacy endpoints were the percent changes in HbA1c and LDL-C levels from baseline at the end of the treatment.
Results:
After 16 weeks of treatment compared to baseline, HbA1c showed a significant difference of 0.94% compared to the atorvastatin group in the combination group (0.35% vs. −0.58%, respectively; P<0.0001), whereas the proportion of patients with increased HbA1c was also 62% and 15%, respectively, showing a significant difference (P<0.001). The combination group also showed a significant decrease in LDL-C levels compared to the metformin group (−55.20% vs. −7.69%, P<0.001) without previously unknown adverse drug events.
Conclusion
The addition of atorvastatin to metformin improved HbA1c and LDL-C levels to a significant extent compared to metformin or atorvastatin alone in diabetes and dyslipidemia patients. This study also suggested metformin’s preventive effect on the glucose-elevating potential of atorvastatin in patients with type 2 diabetes mellitus and dyslipidemia, insufficiently controlled with exercise and diet. Metformin and atorvastatin combination might be an effective treatment in reducing the CVD risk in patients with both diabetes and dyslipidemia because of its lowering effect on LDL-C and glucose.
10.Innate Type-2 Cytokines: From ImmuneRegulation to Therapeutic Targets
Hye Young KIM ; Dongjin JEONG ; Ji Hyung KIM ; Doo Hyun CHUNG
Immune Network 2024;24(1):e6-
The intricate role of innate type-2 cytokines in immune responses is increasingly acknowledged for its dual nature, encompassing both protective and pathogenic dimensions.Ranging from defense against parasitic infections to contributing to inflammatory diseases like asthma, fibrosis, and obesity, these cytokines intricately engage with various innate immune cells. This review meticulously explores the cellular origins of innate type-2 cytokines and their intricate interactions, shedding light on factors that amplify the innate type-2 response, including TSLP, IL-25, and IL-33. Recent advancements in therapeutic strategies, specifically the utilization of biologics targeting pivotal cytokines (IL-4, IL-5, and IL-13), are discussed, offering insights into both challenges and opportunities.Acknowledging the pivotal role of innate type-2 cytokines in orchestrating immune responses positions them as promising therapeutic targets. The evolving landscape of research and development in this field not only propels immunological knowledge forward but also holds the promise of more effective treatments in the future.

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