Dajung Sung

Ms. Dajung Sung

Catholic University of Korea
orcid

Research Focus & Metrics

Academic Career Length

8Years (2019-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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EPE-Jin Park
E-Jin Park
SKShin-Young Kim
Shin-Young Kim
YKYeeun Kim
Yeeun Kim
Dajung SungDajung Sung
Dajung Sung
BKBora Kim
Bora Kim
MPMin-Hyeon Park
Min-Hyeon Park
Adverse childhood experiences (ACEs) are known to be closely related to depression, anxiety and sleep problems. However, it remains unclear whether adolescents with ACEs have sleep problems regardless of depression or anxiety or under a mediating effect from depression or anxiety. Therefore, our aim was to examine whether depression or anxiety mediates the relationship between ACEs and sleep problems in adolescents by using a community sample. The Early Trauma Inventory Self Report–Short Form (ETISR-SF) and List of Threatening Experiences Questionnaire (LTE-Q) were used to assess traumatic ACEs. Ultimately, data from 737 students (M = 448, F = 289, 15.1 ± 1.4 years old) were included in the statistical analysis. A total of 576 (78.1%) participants reported that they had experienced one or more ACEs. Adolescents with ACEs had higher levels of depression, anxiety and sleep problems than did adolescents without ACEs, and boys tended to experience more trauma than girls. Depression and anxiety partially mediated the relationship between ACEs and sleep problems. The results of this study suggest the need for depression and anxiety interventions for adolescents with ACEs to reduce the long-term consequences, including sleep problems and physical health problems.

2 March 2020 in Scientific Reports
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Journal Article
Open access
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Dajung SungDajung Sung
Dajung Sung
BPBumhee Park
Bumhee Park
SKShin-Young Kim
Shin-Young Kim
BKBung-Nyun Kim
Bung-Nyun Kim
SPSubin Park
Subin Park
MPMin-Hyeon Park
Min-Hyeon Park
Although sleep disturbances are highly prevalent in adolescents, neuroimaging evidence on the effects of sleep disturbances on their developing brains remains limited. Therefore, we explored gray matter volumes (GMVs) at the whole-brain level and investigated their relationship to sleep disturbances in a sample of Korean adolescents in the general population. We recruited participants from one middle school and high school. All participants and their legal guardians gave informed consent before participating in our study. We used component 5 of the Pittsburgh Sleep Quality Index to measure sleep disturbances and conducted a voxel-based morphometry-DARTEL procedure to measure GMVs. We performed partial correlation analyses to examine whether the GMVs were associated with sleep disturbances. A total of 56 adolescents participated in this study. Our results revealed that GMVs in multiple global regions were negatively correlated with sleep disturbances. Moreover, most of these identified regions belong to large-scale brain networks categorized by functional neuroimaging studies. We found an association between regional GMVs in multiple global regions involved in large-scale networks and the severity of sleep disturbances in the adolescent population. Based on this evidence and previous neuroimaging evidence, we suggest that structural alterations in the networks may be linked to sleep disturbances.

22 September 2022 in Psychiatry Investigation
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Journal Article
Open access
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YJYoung-Jin Jang
Young-Jin Jang
HCHaemi Choi
Haemi Choi
THTae Sun Han
Tae Sun Han
Dajung SungDajung Sung
Dajung Sung
JWJae Yeon Woo
Jae Yeon Woo
MPMin-Hyeon Park
Min-Hyeon Park
Objective We aimed to investigate the improvement in sleep quantity and quality when clonidine was used in children and adolescents with insomnia. We also examined how sociodemographic characteristics such as age, sex, underlying psychological problems, and levels of depression and anxiety affected the effect of clonidine.Methods We retrospectively reviewed outpatients aged 6 to 24 who took clonidine due to insomnia from September 2019 to September 2021 at the Department of Psychiatry at Eunpyeong St. Mary’s Hospital of Catholic University. We used the Pittsburgh Sleep Quality Index (PSQI), Children’s Depression Inventory (CDI), and State-Trait Anxiety Inventory (STAI) for our study.Results A total of 62 participants were included in our study (34 females, mean age 13.94±4.94 years). After using clonidine, there was a significant decrease in PSQI components 1, 2, and 5, especially PSQI component 2. There was a greater decrease in sleep latency when clonidine was used in females, those aged between 13 and 24, those with mood/anxiety disorder or attention-deficit/hyperactivity disorder, those whose sleep latency exceeded 60 minutes at baseline, and those who used clonidine for more than 14 days. Those with higher STAI-Trait scores and CDI scores at baseline showed less improvement in total PSQI scores.Conclusion Considering that there are currently no Food and Drug Administration-approved sleep drugs for children and adolescents and no apparent difference in efficacy and safety among sleep drugs, we demonstrated that treatment with clonidine might be a good approach to improve sleep quality and quantity for children and adolescents.

1 October 2019 in Psychiatry Research
Verified
Journal Article
Closed access
KPKyu-Myoung Park
Kyu-Myoung Park
SKShin-Young Kim
Shin-Young Kim
Dajung SungDajung Sung
Dajung Sung
HKHyemin Kim
Hyemin Kim
BKBung-Nyun Kim
Bung-Nyun Kim
MPMin-Hyeon Park
Min-Hyeon Park