1.Performance Evaluation of the Roche Cobas 5800 HBVand HCV Tests: Comparison of the 200 and 500 μLProtocols
Seri JEONG ; Su Kyung LEE ; Eun-Jung CHO ; Han-Sung KIM ; Young Kyung LEE ; Jae-Seok KIM ; Wonkeun SONG ; Hyun Soo KIM
Annals of Laboratory Medicine 2024;44(3):253-261
Background:
Clinical management of patients infected with hepatitis B virus (HBV) or hepatitis C virus (HCV) relies on the viral load (VL). The Cobas 5800 system (Roche Diagnostics) can determine VLs in 200 and 500 µL samples, but the performance of each protocol has not been compared. We evaluated the performance of both protocols for the HBV and HCV tests.
Methods:
Precision and linearity were verified using commercial panels. Probit analyses were used to determine limits of detection (LoDs). The results obtained with 336 samples were compared using the 200 and 500 µL protocols. Data from 6,737 retrospective HBV and 768 HCV samples were compared to estimate the effects of the different LoDs on the diagnostic results of the protocols. Correlations between protocols were tested with Spearman’s rank correlation coefficients (rho).
Results:
The precision and linearity of both protocols were verified. The LoDs for the 200and 500 μL protocols were 6.5 and 2.7 IU/mL for HBV and 29.7 and 8.2 IU/mL for HCV,respectively. The agreement between the protocols ranged from 0.8 to 1.0. The results obtained with the HBV and HCV tests showed a strong correlation (rho = 0.994). Only 0.4% ofHBV and 0.4% of HCV test results were affected by the LoDs of the 200 μL protocol.
Conclusions
The Cobas 5800 200 and 500 µL protocols for the HBV DNA and HCV RNA tests demonstrated excellent performance. These findings establish the 200 µL protocol as a new option for low-volume samples, especially for pediatric and difficult-to-bleed patients.
2.Translational Approach to Social Isolation During a Global Pandemic: Hippocampal Somatic Mutation and Stress
Bomee LEE ; Seri MAENG ; Yuri SEO ; Sohee JUNG ; Soojung IM ; Hyung Jun CHOI ; Jae Nam BAE ; Yangsik KIM
Psychiatry Investigation 2024;21(12):1360-1371
Objective:
The coronavirus disease-2019 (COVID-19) pandemic’s social isolation has significantly impacted mental health, increasing depression and anxiety. This study explores the effects of social isolation on both humans and mice, focusing on behavioral changes and hippocampal protein expression. It also investigates genetic alterations through single-cell RNA and whole-genome sequencing (WGS).
Methods:
Here we conducted behavioral studies, protein expression studies, single-nucleus sequencing (snRNAseq), and WGS of the hippocampus of mice that underwent early maternal separation and social isolation, and a demographic study of community populations who had been self-quarantined owing to COVID-19 exposure to investigate the link between somatic mutations and stress due to social isolation.
Results:
The demographic study demonstrated more negative mental health findings among individuals who live alone or are single. Mice subjected to early maternal separation and social isolation demonstrated increased anxiety-like behaviors and stress-related corticotropin-releasing hormone receptor 1, and neurogenesis-related sex-determining region Y-box 2 and doublecortin expression. In snRNA-seq, differences, such as transthyretin increase, were observed in the maternal separation group, and somatic mutations, including insertion in the intron site of Tmem267, were observed in the social isolation group on WGS.
Conclusion
The results of this study suggest that stress, such as social isolation, can cause changes at the genetic level, as well as behavioral and brain protein changes.
3.Translational Approach to Social Isolation During a Global Pandemic: Hippocampal Somatic Mutation and Stress
Bomee LEE ; Seri MAENG ; Yuri SEO ; Sohee JUNG ; Soojung IM ; Hyung Jun CHOI ; Jae Nam BAE ; Yangsik KIM
Psychiatry Investigation 2024;21(12):1360-1371
Objective:
The coronavirus disease-2019 (COVID-19) pandemic’s social isolation has significantly impacted mental health, increasing depression and anxiety. This study explores the effects of social isolation on both humans and mice, focusing on behavioral changes and hippocampal protein expression. It also investigates genetic alterations through single-cell RNA and whole-genome sequencing (WGS).
Methods:
Here we conducted behavioral studies, protein expression studies, single-nucleus sequencing (snRNAseq), and WGS of the hippocampus of mice that underwent early maternal separation and social isolation, and a demographic study of community populations who had been self-quarantined owing to COVID-19 exposure to investigate the link between somatic mutations and stress due to social isolation.
Results:
The demographic study demonstrated more negative mental health findings among individuals who live alone or are single. Mice subjected to early maternal separation and social isolation demonstrated increased anxiety-like behaviors and stress-related corticotropin-releasing hormone receptor 1, and neurogenesis-related sex-determining region Y-box 2 and doublecortin expression. In snRNA-seq, differences, such as transthyretin increase, were observed in the maternal separation group, and somatic mutations, including insertion in the intron site of Tmem267, were observed in the social isolation group on WGS.
Conclusion
The results of this study suggest that stress, such as social isolation, can cause changes at the genetic level, as well as behavioral and brain protein changes.
4.Translational Approach to Social Isolation During a Global Pandemic: Hippocampal Somatic Mutation and Stress
Bomee LEE ; Seri MAENG ; Yuri SEO ; Sohee JUNG ; Soojung IM ; Hyung Jun CHOI ; Jae Nam BAE ; Yangsik KIM
Psychiatry Investigation 2024;21(12):1360-1371
Objective:
The coronavirus disease-2019 (COVID-19) pandemic’s social isolation has significantly impacted mental health, increasing depression and anxiety. This study explores the effects of social isolation on both humans and mice, focusing on behavioral changes and hippocampal protein expression. It also investigates genetic alterations through single-cell RNA and whole-genome sequencing (WGS).
Methods:
Here we conducted behavioral studies, protein expression studies, single-nucleus sequencing (snRNAseq), and WGS of the hippocampus of mice that underwent early maternal separation and social isolation, and a demographic study of community populations who had been self-quarantined owing to COVID-19 exposure to investigate the link between somatic mutations and stress due to social isolation.
Results:
The demographic study demonstrated more negative mental health findings among individuals who live alone or are single. Mice subjected to early maternal separation and social isolation demonstrated increased anxiety-like behaviors and stress-related corticotropin-releasing hormone receptor 1, and neurogenesis-related sex-determining region Y-box 2 and doublecortin expression. In snRNA-seq, differences, such as transthyretin increase, were observed in the maternal separation group, and somatic mutations, including insertion in the intron site of Tmem267, were observed in the social isolation group on WGS.
Conclusion
The results of this study suggest that stress, such as social isolation, can cause changes at the genetic level, as well as behavioral and brain protein changes.
5.Translational Approach to Social Isolation During a Global Pandemic: Hippocampal Somatic Mutation and Stress
Bomee LEE ; Seri MAENG ; Yuri SEO ; Sohee JUNG ; Soojung IM ; Hyung Jun CHOI ; Jae Nam BAE ; Yangsik KIM
Psychiatry Investigation 2024;21(12):1360-1371
Objective:
The coronavirus disease-2019 (COVID-19) pandemic’s social isolation has significantly impacted mental health, increasing depression and anxiety. This study explores the effects of social isolation on both humans and mice, focusing on behavioral changes and hippocampal protein expression. It also investigates genetic alterations through single-cell RNA and whole-genome sequencing (WGS).
Methods:
Here we conducted behavioral studies, protein expression studies, single-nucleus sequencing (snRNAseq), and WGS of the hippocampus of mice that underwent early maternal separation and social isolation, and a demographic study of community populations who had been self-quarantined owing to COVID-19 exposure to investigate the link between somatic mutations and stress due to social isolation.
Results:
The demographic study demonstrated more negative mental health findings among individuals who live alone or are single. Mice subjected to early maternal separation and social isolation demonstrated increased anxiety-like behaviors and stress-related corticotropin-releasing hormone receptor 1, and neurogenesis-related sex-determining region Y-box 2 and doublecortin expression. In snRNA-seq, differences, such as transthyretin increase, were observed in the maternal separation group, and somatic mutations, including insertion in the intron site of Tmem267, were observed in the social isolation group on WGS.
Conclusion
The results of this study suggest that stress, such as social isolation, can cause changes at the genetic level, as well as behavioral and brain protein changes.
6.Translational Approach to Social Isolation During a Global Pandemic: Hippocampal Somatic Mutation and Stress
Bomee LEE ; Seri MAENG ; Yuri SEO ; Sohee JUNG ; Soojung IM ; Hyung Jun CHOI ; Jae Nam BAE ; Yangsik KIM
Psychiatry Investigation 2024;21(12):1360-1371
Objective:
The coronavirus disease-2019 (COVID-19) pandemic’s social isolation has significantly impacted mental health, increasing depression and anxiety. This study explores the effects of social isolation on both humans and mice, focusing on behavioral changes and hippocampal protein expression. It also investigates genetic alterations through single-cell RNA and whole-genome sequencing (WGS).
Methods:
Here we conducted behavioral studies, protein expression studies, single-nucleus sequencing (snRNAseq), and WGS of the hippocampus of mice that underwent early maternal separation and social isolation, and a demographic study of community populations who had been self-quarantined owing to COVID-19 exposure to investigate the link between somatic mutations and stress due to social isolation.
Results:
The demographic study demonstrated more negative mental health findings among individuals who live alone or are single. Mice subjected to early maternal separation and social isolation demonstrated increased anxiety-like behaviors and stress-related corticotropin-releasing hormone receptor 1, and neurogenesis-related sex-determining region Y-box 2 and doublecortin expression. In snRNA-seq, differences, such as transthyretin increase, were observed in the maternal separation group, and somatic mutations, including insertion in the intron site of Tmem267, were observed in the social isolation group on WGS.
Conclusion
The results of this study suggest that stress, such as social isolation, can cause changes at the genetic level, as well as behavioral and brain protein changes.
7.Impact of Social Support during Diagnosis and Treatment on Disease Progression in Young Patients with Breast Cancer: A Prospective Cohort Study
Danbee KANG ; Seri PARK ; Hyo Jung KIM ; Seok Won KIM ; Jeong Eon LEE ; Jonghan YU ; Se Kyung LEE ; Ji-Yeon KIM ; Seok Jin NAM ; Juhee CHO ; Yeon Hee PARK
Cancer Research and Treatment 2024;56(1):125-133
Purpose:
We evaluated the association between changes in social support after cancer treatment and recurrence-free survival (RFS) in such patients using a prospective cohort study.
Materials and Methods:
Data were obtained from a prospective cohort study (NCT03131089) conducted at Samsung Medical Center (2013-2021). The primary outcome measure was RFS. Social support was measured using the social and family well-being (SFWB) domain of the Functional Assessment of Cancer Therapy-General. We calculated the changes in SFWB scores before and during treatment and the hazard ratio for RFS by comparing such changes.
Results:
The mean±standard deviation (SD) age of the patients was 35±3.9 years, and 71.5% and 64.8% of the patients were married and had children, respectively. The mean±SD SFWB score at baseline was 20.5±5.0 out of 26. After cancer treatment, 35.9%, 10.3%, and 53.8% of the participants had increasing, unchanged, and decreasing SFWB scores, respectively. The decreasing SFWB score group had a higher risk of mortality or recurrence than the increasing group. Risk factors for the decreasing score were the presence of children during diagnosis.
Conclusion
In this cohort, changes in social support after treatment were associated with RFS in young patients with breast cancer. Health professionals should develop family interventions to help them receive proper social support.
8.A Comparative Analysis of Neurocognitive Function in Community- and Hospital-Based Patients With Schizophrenia
Seri MAENG ; Hee Seon KIM ; Tae Joo LEE ; Hoon Jung KOO ; Won-Hyoung KIM
Psychiatry Investigation 2024;21(10):1110-1119
Objective:
The study compared differences in various neurocognitive characteristics across treatment modalities among schizophrenia patients recruited in one city between July 2020 and June 2023 who were on regular medication.
Methods:
Of the 151 participants, 113 were included in the analysis. Participants were divided into community-based and hospital-based groups, and their demographics and clinical characteristics, including insight, quality of life, positive and negative symptoms, and personal and social functioning, were examined. In addition, several aspects of cognition were assessed using neurocognitive assessments such as the Trail Making Test (TMT), Stroop test, and Wisconsin Card Sorting Test (WCST). After adjusting for age differences between groups, the final analysis included data from 42 participants in the community-based group and 33 participants in the hospital-based group.
Results:
Hospital-based group participants completed Stroop-W more rapidly, excelled in Rey-Osterrieth Complex Figure Test recall and recognition, and incurred fewer TMT Part B (TMT-B) and Stroop-C errors. Additionally, they outperformed in WCST total, non-persistent errors, and categories completed. Contrastingly, community-based group participants showed superior outcomes in WCST persistent responses and errors, suggesting specific neurocognitive strengths.
Conclusion
We found differences in neurocognitive characteristics between the two groups. These differences were consistent across a range of cognitive domains, including attention, visual discrimination, memory, and executive functioning. Further large-scale study is needed to generalize cognitive characteristics across treatment modalities.
9.Difficult Airway and Failed Tracheal Intubation in a Patient with Mucopolaysaccharidoses Type II: A Case Report
Ana CHO ; Bon Sung KOO ; Yang Hoon CHUNG ; Misoon LEE ; Jaewoong JUNG ; Eun Young KO ; Seri PARK ; Jihun YU
Soonchunhyang Medical Science 2022;28(1):75-77
Mucopolysaccharidoses are rare lysosomal storage diseases resulting from defects in lysosomal enzymes involved in degradation of glycosaminoglycans. Different mucopolysaccharidoses are caused by different enzyme deficiencies The anesthetic complications are related to the organs involved. Patients with mucopolysaccharidoses are rare, and few anesthetists encounter such patients. We experienced a case of mucopolysaccharidoses type II. Several endotracheal intubation attempts were tried, but we experienced failed endotracheal intubation. And we decided to proceed with surgery under bag-mask ventilation because of the short operation time. There’s no desaturation time. And the patient’s spontaneous ventilation was recovered and awakened. We have also briefly discussed the pathophysiology, clinical features, and possible airway management options for patients with mucopolysaccharidoses type II.
10.The Difference in the Quality of Life of Korean Children With Attention-Deficit/Hyperactivity Disorder Between Before and After COVID-19
Jung-Hoon LEE ; Seri MAENG ; Jeong-Seop LEE ; Jae-Nam BAE ; Won-Hyoung KIM ; Hyeyoung KIM
Journal of the Korean Academy of Child and Adolescent Psychiatry 2022;33(4):113-121
Objectives:
This study aimed to compare the quality of life (QoL) of children with attention-deficit/hyperactivity disorder (ADHD) before and during coronavirus disease-2019 (COVID-19) and to examine how their QoL is affected by emotional and environmental factors during COVID-19.
Methods:
Participants in the pre-COVID-19 (n=43) and COVID-19 (n=36) groups were recruited from the same university hospital. The Pediatric Quality of Life Inventory (PedsQL) 4.0 Child Self-report, the Children’s Depression Inventory (CDI), the Revised Children’s Manifest Anxiety Scale (RCMAS), the PedsQL 4.0 Parent Proxy Report, and the Conners’ Parent Rating Scale (CPRS) were employed. Independent t-tests, Pearson’s correlation analysis, and multiple regression analysis were conducted.
Results:
Caregivers assessed the children’s QoL more negatively than the children themselves in both groups. Children with ADHD evaluated their physical function more negatively and anxiety was significantly higher in the COVID-19 group. In the COVID-19 group, the PedsQL child self-report was significantly predicted by the CPRS, the CDI, and environmental factors (i.e., relation to child and monthly household income).
Conclusion
Children with ADHD in the COVID-19 group had a numerically lower QoL and significantly higher anxiety. To improve QoL, it is important to deal with not only depression but also ADHD symptoms and environmental factors.

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