1.Use of Miniscrew-assisted Rapid Palatal Expansion in Children: Case Reports
Yoo Jin LEE ; Hyuntae KIM ; Ji-Soo SONG ; Teo Jeon SHIN ; Hong-Keun HYUN ; Young-Jae KIM ; Jung-Wook KIM ; Ki-Taeg JANG
Journal of Korean Academy of Pediatric Dentistry 2025;52(2):239-252
The use of miniscrew-assisted rapid palatal expansion (MARPE) has yielded successful outcomes in late adolescence and early adulthood, particularly in correcting transverse maxillary discrepancies and enhancing airway expansion. This report presents three cases of children at different dentition stages treated with MARPE. In one patient with severe crowding, MARPE enabled dental alignment without the need for premolar extractions. Additionally, MARPE combined with facemask therapy improved the patient’s facial profile, resulting in high patient and guardian satisfaction. These cases highlight MARPE’s potential as an effective treatment for maxillary discrepancies and severe arch length discrepancies in children.
2.PDK4 expression and tumor aggressiveness in prostate cancer
Eun Hye LEE ; Yun-Sok HA ; Bo Hyun YOON ; Minji JEON ; Dong Jin PARK ; Jiyeon KIM ; Jun-Koo KANG ; Jae-Wook CHUNG ; Bum Soo KIM ; Seock Hwan CHOI ; Hyun Tae KIM ; Tae-Hwan KIM ; Eun Sang YOO ; Tae Gyun KWON
Investigative and Clinical Urology 2025;66(3):227-235
Purpose:
Prostate cancer ranks as the second most common cancer in men globally, representing a significant cause of cancer-related mortality. Metastasis, the spread of cancer cells from the primary site to distant organs, remains a major challenge in managing prostate cancer. Pyruvate dehydrogenase kinase 4 (PDK4) is implicated in the regulation of aerobic glycolysis, emerging as a potential player in various cancers. However, its role in prostate cancer remains unclear. This study aims to analyze PDK4 expression in prostate cancer cells and human samples, and to explore the gene's clinical significance.
Materials and Methods:
PDK4 expression was detected in cell lines and human tissue samples. Migration ability was analyzed using Matrigel-coated invasion chambers. Human samples were obtained from the Kyungpook National University Chilgok Hospital.
Results:
PDK4 expression was elevated in prostate cancer cell lines compared to normal prostate cells, with particularly high levels in DU145 and LnCap cell lines. PDK4 knockdown in these cell lines suppressed their invasion ability, indicating a potential role of PDK4 in prostate cancer metastasis. Furthermore, our results revealed alterations in epithelial-mesenchymal transition markers and downstream signaling molecules following PDK4 suppression, suggesting its involvement in the modulation of invasion-related pathways. Furthermore, PDK4 expression was increased in prostate cancer tissues, especially in castration-resistant prostate cancer, compared to normal prostate tissues, with PSA and PDK4 expression showing a significantly positive correlation.
Conclusions
PDK4 expression in prostate cancer is associated with tumor invasion and castration status. Further validation is needed to demonstrate its effectiveness as a therapeutic target.
3.Use of Miniscrew-assisted Rapid Palatal Expansion in Children: Case Reports
Yoo Jin LEE ; Hyuntae KIM ; Ji-Soo SONG ; Teo Jeon SHIN ; Hong-Keun HYUN ; Young-Jae KIM ; Jung-Wook KIM ; Ki-Taeg JANG
Journal of Korean Academy of Pediatric Dentistry 2025;52(2):239-252
The use of miniscrew-assisted rapid palatal expansion (MARPE) has yielded successful outcomes in late adolescence and early adulthood, particularly in correcting transverse maxillary discrepancies and enhancing airway expansion. This report presents three cases of children at different dentition stages treated with MARPE. In one patient with severe crowding, MARPE enabled dental alignment without the need for premolar extractions. Additionally, MARPE combined with facemask therapy improved the patient’s facial profile, resulting in high patient and guardian satisfaction. These cases highlight MARPE’s potential as an effective treatment for maxillary discrepancies and severe arch length discrepancies in children.
4.Use of Miniscrew-assisted Rapid Palatal Expansion in Children: Case Reports
Yoo Jin LEE ; Hyuntae KIM ; Ji-Soo SONG ; Teo Jeon SHIN ; Hong-Keun HYUN ; Young-Jae KIM ; Jung-Wook KIM ; Ki-Taeg JANG
Journal of Korean Academy of Pediatric Dentistry 2025;52(2):239-252
The use of miniscrew-assisted rapid palatal expansion (MARPE) has yielded successful outcomes in late adolescence and early adulthood, particularly in correcting transverse maxillary discrepancies and enhancing airway expansion. This report presents three cases of children at different dentition stages treated with MARPE. In one patient with severe crowding, MARPE enabled dental alignment without the need for premolar extractions. Additionally, MARPE combined with facemask therapy improved the patient’s facial profile, resulting in high patient and guardian satisfaction. These cases highlight MARPE’s potential as an effective treatment for maxillary discrepancies and severe arch length discrepancies in children.
5.Abdominal Obesity Increases the Risk for Depression by Sex: A Nationwide Cohort Study in South Korea
Soobin JO ; Kyung-do HAN ; Juhwan YOO ; Dong Wook SHIN ; Hyewon KIM ; Hong Jin JEON
Psychiatry Investigation 2024;21(12):1398-1406
Objective:
Previous studies have investigated obesity and appetite changes in patients with depression, which consisted of a small age range of adults and used body mass index rather than abdominal obesity. The objective of this study is to examine the relationship between abdominal obesity and the risk of depression by sex and age groups.
Methods:
This study utilized the National Health Insurance Sharing Service (NHISS) database of South Korea, which includes those over 20 years old and who had undergone a health examination in 2009 and their claims data between 2009 and 2018. The diagnosis of depressive episodes was based on the International Statistical Classification of Disease and Related Health Problems 10th revision. Abdominal obesity was measured by waist circumference (WC) and was divided into six levels (cm). Cox proportional-hazard regression analyses were conducted to examine the relationship between abdominal obesity and the risk of depression by sex and age groups.
Results:
Among 9,041,751 participants, 1,376,279 were diagnosed with depression. Those with higher WC (90 cm or higher for males, 85 cm or higher for females) showed an increased risk for depression in both sexes (hazard ratio [HR]=1.09, 95% confidence interval [CI]: 1.07–1.11 for males, HR=1.03, 95% CI: 1.02–1.05 for females). Underweight males (WC<80 cm) also showed an increased risk for depression (HR=1.05, 95% CI: 1.04–1.05).
Conclusion
It has been found that higher WC was associated with increased risks of depression in both sexes. Although underweight males showed an elevated risk of depression, a healthy weight is associated with fewer depression symptoms.
6.Discordance Between Angiographic Assessment and Fractional Flow Reserve or Intravascular Ultrasound in Intermediate Coronary Lesions: A Post-hoc Analysis of the FLAVOUR Trial
Jung-Hee LEE ; Sung Gyun AHN ; Ho Sung JEON ; Jun-Won LEE ; Young Jin YOUN ; Jinlong ZHANG ; Xinyang HU ; Jian’an WANG ; Joo Myung LEE ; Joo-Yong HAHN ; Chang-Wook NAM ; Joon-Hyung DOH ; Bong-Ki LEE ; Weon KIM ; Jinyu HUANG ; Fan JIANG ; Hao ZHOU ; Peng CHEN ; Lijiang TANG ; Wenbing JIANG ; Xiaomin CHEN ; Wenming HE ; Myeong-Ho YOON ; Seung-Jea TAHK ; Ung KIM ; You-Jeong KI ; Eun-Seok SHIN ; Doyeon HWANG ; Jeehoon KANG ; Hyo-Soo KIM ; Bon-Kwon KOO
Korean Circulation Journal 2024;54(8):485-496
Background and Objectives:
Angiographic assessment of coronary stenosis severity using quantitative coronary angiography (QCA) is often inconsistent with that based on fractional flow reserve (FFR) or intravascular ultrasound (IVUS). We investigated the incidence of discrepancies between QCA and FFR or IVUS, and the outcomes of FFR- and IVUS-guided strategies in discordant coronary lesions.
Methods:
This study was a post-hoc analysis of the FLAVOUR study. We used a QCA-derived diameter stenosis (DS) of 60% or greater, the highest tertile, to classify coronary lesions as concordant or discordant with FFR or IVUS criteria for percutaneous coronary intervention (PCI). The patient-oriented composite outcome (POCO) was defined as a composite of death, myocardial infarction, or revascularization at 24 months.
Results:
The discordance rate between QCA and FFR or IVUS was 30.2% (n=551). The QCAFFR discordance rate was numerically lower than the QCA-IVUS discordance rate (28.2% vs. 32.4%, p=0.050). In 200 patients with ≥60% DS, PCI was deferred according to negative FFR (n=141) and negative IVUS (n=59) (15.3% vs. 6.5%, p<0.001). The POCO incidence was comparable between the FFR- and IVUS-guided deferral strategies (5.9% vs. 3.4%, p=0.479).Conversely, 351 patients with DS <60% underwent PCI according to positive FFR (n=118) and positive IVUS (n=233) (12.8% vs. 25.9%, p<0.001). FFR- and IVUS-guided PCI did not differ in the incidence of POCO (9.5% vs. 6.5%, p=0.294).
Conclusions
The proportion of QCA-FFR or IVUS discordance was approximately one third for intermediate coronary lesions. FFR- or IVUS-guided strategies for these lesions were comparable with respect to POCO at 24 months.
7.Abdominal Obesity Increases the Risk for Depression by Sex: A Nationwide Cohort Study in South Korea
Soobin JO ; Kyung-do HAN ; Juhwan YOO ; Dong Wook SHIN ; Hyewon KIM ; Hong Jin JEON
Psychiatry Investigation 2024;21(12):1398-1406
Objective:
Previous studies have investigated obesity and appetite changes in patients with depression, which consisted of a small age range of adults and used body mass index rather than abdominal obesity. The objective of this study is to examine the relationship between abdominal obesity and the risk of depression by sex and age groups.
Methods:
This study utilized the National Health Insurance Sharing Service (NHISS) database of South Korea, which includes those over 20 years old and who had undergone a health examination in 2009 and their claims data between 2009 and 2018. The diagnosis of depressive episodes was based on the International Statistical Classification of Disease and Related Health Problems 10th revision. Abdominal obesity was measured by waist circumference (WC) and was divided into six levels (cm). Cox proportional-hazard regression analyses were conducted to examine the relationship between abdominal obesity and the risk of depression by sex and age groups.
Results:
Among 9,041,751 participants, 1,376,279 were diagnosed with depression. Those with higher WC (90 cm or higher for males, 85 cm or higher for females) showed an increased risk for depression in both sexes (hazard ratio [HR]=1.09, 95% confidence interval [CI]: 1.07–1.11 for males, HR=1.03, 95% CI: 1.02–1.05 for females). Underweight males (WC<80 cm) also showed an increased risk for depression (HR=1.05, 95% CI: 1.04–1.05).
Conclusion
It has been found that higher WC was associated with increased risks of depression in both sexes. Although underweight males showed an elevated risk of depression, a healthy weight is associated with fewer depression symptoms.
8.Abdominal Obesity Increases the Risk for Depression by Sex: A Nationwide Cohort Study in South Korea
Soobin JO ; Kyung-do HAN ; Juhwan YOO ; Dong Wook SHIN ; Hyewon KIM ; Hong Jin JEON
Psychiatry Investigation 2024;21(12):1398-1406
Objective:
Previous studies have investigated obesity and appetite changes in patients with depression, which consisted of a small age range of adults and used body mass index rather than abdominal obesity. The objective of this study is to examine the relationship between abdominal obesity and the risk of depression by sex and age groups.
Methods:
This study utilized the National Health Insurance Sharing Service (NHISS) database of South Korea, which includes those over 20 years old and who had undergone a health examination in 2009 and their claims data between 2009 and 2018. The diagnosis of depressive episodes was based on the International Statistical Classification of Disease and Related Health Problems 10th revision. Abdominal obesity was measured by waist circumference (WC) and was divided into six levels (cm). Cox proportional-hazard regression analyses were conducted to examine the relationship between abdominal obesity and the risk of depression by sex and age groups.
Results:
Among 9,041,751 participants, 1,376,279 were diagnosed with depression. Those with higher WC (90 cm or higher for males, 85 cm or higher for females) showed an increased risk for depression in both sexes (hazard ratio [HR]=1.09, 95% confidence interval [CI]: 1.07–1.11 for males, HR=1.03, 95% CI: 1.02–1.05 for females). Underweight males (WC<80 cm) also showed an increased risk for depression (HR=1.05, 95% CI: 1.04–1.05).
Conclusion
It has been found that higher WC was associated with increased risks of depression in both sexes. Although underweight males showed an elevated risk of depression, a healthy weight is associated with fewer depression symptoms.
9.Discordance Between Angiographic Assessment and Fractional Flow Reserve or Intravascular Ultrasound in Intermediate Coronary Lesions: A Post-hoc Analysis of the FLAVOUR Trial
Jung-Hee LEE ; Sung Gyun AHN ; Ho Sung JEON ; Jun-Won LEE ; Young Jin YOUN ; Jinlong ZHANG ; Xinyang HU ; Jian’an WANG ; Joo Myung LEE ; Joo-Yong HAHN ; Chang-Wook NAM ; Joon-Hyung DOH ; Bong-Ki LEE ; Weon KIM ; Jinyu HUANG ; Fan JIANG ; Hao ZHOU ; Peng CHEN ; Lijiang TANG ; Wenbing JIANG ; Xiaomin CHEN ; Wenming HE ; Myeong-Ho YOON ; Seung-Jea TAHK ; Ung KIM ; You-Jeong KI ; Eun-Seok SHIN ; Doyeon HWANG ; Jeehoon KANG ; Hyo-Soo KIM ; Bon-Kwon KOO
Korean Circulation Journal 2024;54(8):485-496
Background and Objectives:
Angiographic assessment of coronary stenosis severity using quantitative coronary angiography (QCA) is often inconsistent with that based on fractional flow reserve (FFR) or intravascular ultrasound (IVUS). We investigated the incidence of discrepancies between QCA and FFR or IVUS, and the outcomes of FFR- and IVUS-guided strategies in discordant coronary lesions.
Methods:
This study was a post-hoc analysis of the FLAVOUR study. We used a QCA-derived diameter stenosis (DS) of 60% or greater, the highest tertile, to classify coronary lesions as concordant or discordant with FFR or IVUS criteria for percutaneous coronary intervention (PCI). The patient-oriented composite outcome (POCO) was defined as a composite of death, myocardial infarction, or revascularization at 24 months.
Results:
The discordance rate between QCA and FFR or IVUS was 30.2% (n=551). The QCAFFR discordance rate was numerically lower than the QCA-IVUS discordance rate (28.2% vs. 32.4%, p=0.050). In 200 patients with ≥60% DS, PCI was deferred according to negative FFR (n=141) and negative IVUS (n=59) (15.3% vs. 6.5%, p<0.001). The POCO incidence was comparable between the FFR- and IVUS-guided deferral strategies (5.9% vs. 3.4%, p=0.479).Conversely, 351 patients with DS <60% underwent PCI according to positive FFR (n=118) and positive IVUS (n=233) (12.8% vs. 25.9%, p<0.001). FFR- and IVUS-guided PCI did not differ in the incidence of POCO (9.5% vs. 6.5%, p=0.294).
Conclusions
The proportion of QCA-FFR or IVUS discordance was approximately one third for intermediate coronary lesions. FFR- or IVUS-guided strategies for these lesions were comparable with respect to POCO at 24 months.
10.Discordance Between Angiographic Assessment and Fractional Flow Reserve or Intravascular Ultrasound in Intermediate Coronary Lesions: A Post-hoc Analysis of the FLAVOUR Trial
Jung-Hee LEE ; Sung Gyun AHN ; Ho Sung JEON ; Jun-Won LEE ; Young Jin YOUN ; Jinlong ZHANG ; Xinyang HU ; Jian’an WANG ; Joo Myung LEE ; Joo-Yong HAHN ; Chang-Wook NAM ; Joon-Hyung DOH ; Bong-Ki LEE ; Weon KIM ; Jinyu HUANG ; Fan JIANG ; Hao ZHOU ; Peng CHEN ; Lijiang TANG ; Wenbing JIANG ; Xiaomin CHEN ; Wenming HE ; Myeong-Ho YOON ; Seung-Jea TAHK ; Ung KIM ; You-Jeong KI ; Eun-Seok SHIN ; Doyeon HWANG ; Jeehoon KANG ; Hyo-Soo KIM ; Bon-Kwon KOO
Korean Circulation Journal 2024;54(8):485-496
Background and Objectives:
Angiographic assessment of coronary stenosis severity using quantitative coronary angiography (QCA) is often inconsistent with that based on fractional flow reserve (FFR) or intravascular ultrasound (IVUS). We investigated the incidence of discrepancies between QCA and FFR or IVUS, and the outcomes of FFR- and IVUS-guided strategies in discordant coronary lesions.
Methods:
This study was a post-hoc analysis of the FLAVOUR study. We used a QCA-derived diameter stenosis (DS) of 60% or greater, the highest tertile, to classify coronary lesions as concordant or discordant with FFR or IVUS criteria for percutaneous coronary intervention (PCI). The patient-oriented composite outcome (POCO) was defined as a composite of death, myocardial infarction, or revascularization at 24 months.
Results:
The discordance rate between QCA and FFR or IVUS was 30.2% (n=551). The QCAFFR discordance rate was numerically lower than the QCA-IVUS discordance rate (28.2% vs. 32.4%, p=0.050). In 200 patients with ≥60% DS, PCI was deferred according to negative FFR (n=141) and negative IVUS (n=59) (15.3% vs. 6.5%, p<0.001). The POCO incidence was comparable between the FFR- and IVUS-guided deferral strategies (5.9% vs. 3.4%, p=0.479).Conversely, 351 patients with DS <60% underwent PCI according to positive FFR (n=118) and positive IVUS (n=233) (12.8% vs. 25.9%, p<0.001). FFR- and IVUS-guided PCI did not differ in the incidence of POCO (9.5% vs. 6.5%, p=0.294).
Conclusions
The proportion of QCA-FFR or IVUS discordance was approximately one third for intermediate coronary lesions. FFR- or IVUS-guided strategies for these lesions were comparable with respect to POCO at 24 months.

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