1.Applications of Single-Cell Omics Technologies for Induced Pluripotent Stem Cell-Based Cardiovascular Research
Hyunjoon KIM ; Sohee CHOI ; HyoJung HEO ; Su Han CHO ; Yuna LEE ; Dohyup KIM ; Kyung Oh JUNG ; Siyeon RHEE
International Journal of Stem Cells 2025;18(1):37-48
Single-cell omics technologies have transformed our investigation of genomic, transcriptomic, and proteomic landscapes at the individual cell level. In particular, the application of single-cell RNA sequencing has unveiled the complex transcriptional variations inherent in cardiac cells, offering valuable perspectives into their dynamics. This review focuses on the integration of single-cell omics with induced pluripotent stem cells (iPSCs) in the context of cardiovascular research, offering a unique avenue to deepen our understanding of cardiac biology. By synthesizing insights from various single-cell technologies, we aim to elucidate the molecular intricacies of heart health and diseases. Beyond current methodologies, we explore the potential of emerging paradigms such as single-cell/spatial omics, delving into their capacity to reveal the spatial organization of cellular components within cardiac tissues. Furthermore, we anticipate their transformative role in shaping the future of cardiovascular research. This review aims to contribute to the advancement of knowledge in the field, offering a comprehensive perspective on the synergistic potential of transcriptomic analyses, iPSC applications, and the evolving frontier of spatial omics.
2.A Genetically Confirmed Korean Case of CANVAS: Cerebellar Ataxia, Neuropathy, and Vestibular Areflexia Syndrome
Seung Hee LEE ; Hee-Jae JUNG ; Ji-Hee YOON ; Gu-Hwan KIM ; June-Young KOH ; Yuna LEE ; Young Seok JU ; Eun-Jae LEE ; Beom Hee LEE ; Young-Min LIM ; Hyunjin KIM
Journal of the Korean Neurological Association 2025;43(1):45-49
Cerebellar ataxia, neuropathy, and vestibular areflexia syndrome (CANVAS) is a neurodegenerative disorder caused by a biallelic expansion of pentanucleotide repeats in the RFC1 gene. Previous studies have reported up to 22% of patients with late-onset ataxia harbor this pathogenic repeat expansion. Despite its relatively high prevalence, CANVAS is often underdiagnosed because the disease is not well recognized and genetic testing is not performed in clinical practice. Here, we present a patient with characteristic clinical features, confirmed by genetic testing.
3.Study on Effective Designs for the Identification and Differentiation of Tablets Using KH Coder
Yuka SHONO ; Fumika NAKAGAWA ; Hitomi YAMAMOTO ; Saki GOBARA ; Yuna TOMATSU ; Hiromu MIYAZAKI ; Kenichi OGAWA ; Hidenori SAGARA
Japanese Journal of Drug Informatics 2025;26(4):186-197
Background: This study surveyed pharmacists registered with the Yamaguchi Prefectural Pharmacists Association to determine the key elements of tablet printing design that enhance visibility and distinguishability during dispensing.Objectives: The purpose of this study is to identify suitable design components for tablets that enhance visibility and distinguishability by utilizing text data.Methods: Given the high risk of medication errors due to similar-looking tablets, the study employed KH Coder for text mining analysis of free-text responses.Results: Results indicated that design elements such as "horizontal writing," "straight lines, " and "emphasis on characters" significantly improve visibility and distinguishability, particularly for similar-looking tablets. The findings from this study provide specific guidelines for optimal tablet design, aiming to improve pharmacists' efficiency and enhance medication safety.Conclusions: KH Coder proved to be a valuable tool for analyzing qualitative data in the medical field. While the study focused on pharmacists in Yamaguchi Prefecture, expanding the survey to a national scale is recommended to validate and generalize the findings. This research supports the development of standardized tablet designs that can minimize dispensing errors and ensure patient safety, highlighting the importance of effective tablet printing design in pharmaceutical practice.
4.Applications of Single-Cell Omics Technologies for Induced Pluripotent Stem Cell-Based Cardiovascular Research
Hyunjoon KIM ; Sohee CHOI ; HyoJung HEO ; Su Han CHO ; Yuna LEE ; Dohyup KIM ; Kyung Oh JUNG ; Siyeon RHEE
International Journal of Stem Cells 2025;18(1):37-48
Single-cell omics technologies have transformed our investigation of genomic, transcriptomic, and proteomic landscapes at the individual cell level. In particular, the application of single-cell RNA sequencing has unveiled the complex transcriptional variations inherent in cardiac cells, offering valuable perspectives into their dynamics. This review focuses on the integration of single-cell omics with induced pluripotent stem cells (iPSCs) in the context of cardiovascular research, offering a unique avenue to deepen our understanding of cardiac biology. By synthesizing insights from various single-cell technologies, we aim to elucidate the molecular intricacies of heart health and diseases. Beyond current methodologies, we explore the potential of emerging paradigms such as single-cell/spatial omics, delving into their capacity to reveal the spatial organization of cellular components within cardiac tissues. Furthermore, we anticipate their transformative role in shaping the future of cardiovascular research. This review aims to contribute to the advancement of knowledge in the field, offering a comprehensive perspective on the synergistic potential of transcriptomic analyses, iPSC applications, and the evolving frontier of spatial omics.
5.A Genetically Confirmed Korean Case of CANVAS: Cerebellar Ataxia, Neuropathy, and Vestibular Areflexia Syndrome
Seung Hee LEE ; Hee-Jae JUNG ; Ji-Hee YOON ; Gu-Hwan KIM ; June-Young KOH ; Yuna LEE ; Young Seok JU ; Eun-Jae LEE ; Beom Hee LEE ; Young-Min LIM ; Hyunjin KIM
Journal of the Korean Neurological Association 2025;43(1):45-49
Cerebellar ataxia, neuropathy, and vestibular areflexia syndrome (CANVAS) is a neurodegenerative disorder caused by a biallelic expansion of pentanucleotide repeats in the RFC1 gene. Previous studies have reported up to 22% of patients with late-onset ataxia harbor this pathogenic repeat expansion. Despite its relatively high prevalence, CANVAS is often underdiagnosed because the disease is not well recognized and genetic testing is not performed in clinical practice. Here, we present a patient with characteristic clinical features, confirmed by genetic testing.
6.Applications of Single-Cell Omics Technologies for Induced Pluripotent Stem Cell-Based Cardiovascular Research
Hyunjoon KIM ; Sohee CHOI ; HyoJung HEO ; Su Han CHO ; Yuna LEE ; Dohyup KIM ; Kyung Oh JUNG ; Siyeon RHEE
International Journal of Stem Cells 2025;18(1):37-48
Single-cell omics technologies have transformed our investigation of genomic, transcriptomic, and proteomic landscapes at the individual cell level. In particular, the application of single-cell RNA sequencing has unveiled the complex transcriptional variations inherent in cardiac cells, offering valuable perspectives into their dynamics. This review focuses on the integration of single-cell omics with induced pluripotent stem cells (iPSCs) in the context of cardiovascular research, offering a unique avenue to deepen our understanding of cardiac biology. By synthesizing insights from various single-cell technologies, we aim to elucidate the molecular intricacies of heart health and diseases. Beyond current methodologies, we explore the potential of emerging paradigms such as single-cell/spatial omics, delving into their capacity to reveal the spatial organization of cellular components within cardiac tissues. Furthermore, we anticipate their transformative role in shaping the future of cardiovascular research. This review aims to contribute to the advancement of knowledge in the field, offering a comprehensive perspective on the synergistic potential of transcriptomic analyses, iPSC applications, and the evolving frontier of spatial omics.
7.A Genetically Confirmed Korean Case of CANVAS: Cerebellar Ataxia, Neuropathy, and Vestibular Areflexia Syndrome
Seung Hee LEE ; Hee-Jae JUNG ; Ji-Hee YOON ; Gu-Hwan KIM ; June-Young KOH ; Yuna LEE ; Young Seok JU ; Eun-Jae LEE ; Beom Hee LEE ; Young-Min LIM ; Hyunjin KIM
Journal of the Korean Neurological Association 2025;43(1):45-49
Cerebellar ataxia, neuropathy, and vestibular areflexia syndrome (CANVAS) is a neurodegenerative disorder caused by a biallelic expansion of pentanucleotide repeats in the RFC1 gene. Previous studies have reported up to 22% of patients with late-onset ataxia harbor this pathogenic repeat expansion. Despite its relatively high prevalence, CANVAS is often underdiagnosed because the disease is not well recognized and genetic testing is not performed in clinical practice. Here, we present a patient with characteristic clinical features, confirmed by genetic testing.
8.Relationship between physical activity and sarcopenia among elderly people in ten provinces (autonomous regions) of China, 2022—2023
Yuchen WANG ; Huijun WANG ; Yuna HE ; Chang SU ; Jiguo ZHANG ; Wenwen DU ; Xiaofang JIA ; Feifei HUANG ; Li LI ; Jing BAI ; Yanli WEI ; Xiaofan ZHANG ; Fangxu GUAN ; Yifei OUYANG
Journal of Environmental and Occupational Medicine 2025;42(6):661-667
Background The decline of physical activity in the elderly due to aging may increase the risk of sarcopenia. Currently, there is a lack of evidence from large natural populations on the relationship between PA and sarcopenia. Objective To explore the relationship between PA and sarcopenia in the elderly aged 60 years and above in 10 provinces (autonomous regions) of China. Methods Data were retrieved from the 2022—2023 round of the China Development and Nutrition Health Impact Cohort. Personal basic information and PA data were collected by questionnaire survey. Skeletal muscle mass was measured by bio-electrical impedance analysis, muscle strength was measured using a grip dynamometer, and physical performance was reflected by 6-meter walk speed. The Asian Working Group for Sarcopenia (AWGS) 2019 criteria were used to diagnose sarcopenia. Light physical activity (LPA) duration, moderate-to-vigorous physical activity (MVPA) duration, and total physical activity volume were calculated. A total of
9.Comparison of the predictive value of four critical scoring systems in predicting the prognosis of children with sepsis
Yuna LI ; Wenzhen WANG ; Chunfeng YANG ; Yumei LI
Chinese Pediatric Emergency Medicine 2024;31(3):200-205
Objective:To analyze the predictive value of four scoring systems,Pediatric Clinical Illness Score (PCIS),Pediatric Logistic Organ Dysfunction Score 2 (PELOD-2),Pediatric Risk of Mortality Ⅲ (PRISM Ⅲ),and Pediatric Sequential Organ Failure Assessment (pSOFA),in the severity and prognosis in pediatric sepsis.Methods:The medical records of 159 children with sepsis who admitted to PICU at the First Hospital of Jilin University between August 2015 and December 2020 were retrospectively analyzed.The PCIS,PELOD-2,PRISM Ⅲ and pSOFA scores were calculated according to the worst value of each index within 24 h of admission.The children were divided into survival group and death group based on clinical outcomes during hospitalization.The children were stratified according to the severity of sepsis into sepsis (no organ dysfunction) group ( n=18) and severe sepsis group ( n=141).The receiver operator characteristic (ROC) curve was used to evaluate the value of PCIS,PELOD-2,PRISM Ⅲ and pSOFA scores in predicting the severity and prognosis in pediatric sepsis. Results:There were 97 (61.01%) cases in the survival group and 62(38.99%) cases in the death group.There were 141(88.68%) children with severe sepsis.The areas under curve (AUCs) of PCIS,PELOD-2,PRISM Ⅲ and pSOFA scores for predicting severe sepsis in children with sepsis were 0.869,0.875,0.672 and 0.933,respectively (all P <0.05).The AUCs of PCIS,PELOD-2,PRISM Ⅲ and pSOFA scores for predicting the death of children with sepsis in PICU were 0.687,0.697,0.716 and 0.656,respectively (all P<0.05). Conclusion:Among the four scoring systems,the pSOFA scoring system had the highest predictive power for the severity of sepsis.The PRISM Ⅲ score had higher value in assessing the risk of death in all patients with sepsis.
10.The effective connection of default mode network changes in patients with type 2 diabetes mellitus
Liying ZHANG ; Zhizhong SUN ; Limin GE ; Zidong CAO ; Weiye LU ; Wenbin QIU ; Yuna CHEN ; Shijun QIU
Chinese Journal of Diabetes 2024;32(2):91-96
Objective To investigate the influence of type 2 diabetes mellitus(T2DM)on cognitive function and the effective connectivity with in the default mode network(DMN)in the brain.Methods A total of 93 hospitalized patients diagnosed with T2DM were enrolled in this study as T2DM group from The First Affiliated Hospital of Guangzhou University of Chinese Medicine during September 2021 to December 2022.Simultaneously,108 healthy individuals were recruited from the community as normal control(NC)group.The cognitive functions were evaluated in the two groups.A random dynamic causal modeling approach was employed to analyze the effective connectivity within DMN in both groups.Additionally,Pearson correlation analysis was performed to examine the association between differential connectivity,clinical indicators,and cognitive scores in both groups.Results In comparison to the NC group,T2DM individuals exhibited statistically significant reductions in scores in the auditory verbal learning test(AVLT)for immediate recall and the digit symbol substitution test(DSST)(P<0.05).Additionally,they displayed a notable decrease in effective connectivity from the left lateral parietal cortex(LLPC)to the posterior cingulate cortex(PCC),as well as from the LLPC to the right lateral parietal cortex(RLPC)within the DMN(P<0.05).Pearson correlation analysis unveiled a negative association between HbA1c levels and the strength of effective connectivity from LLPC to PCC.Conversely,a positive correlation was observed between AVLT(immediate)scores and the strength of effective connectivity from LLPC to PCC and LLPC to RLPC.Additionally,DSST scores displayed a positive correlation with the strength of effective connectivity from LLPC to PCC(P<0.05).Conclusion Patients with T2DM display compromised effective connectivity from LLPC to PCC and LLPC to RLPC within the DMN network,and this alteration may associated with cognitive impairment.


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