1.Successful aging among the elderly with mild cognitive impairment facing the crisis of old age: a grounded theory study
Journal of Korean Academy of Nursing 2025;55(2):301-316
Purpose:
The purpose of this study was to understand experiences of successful aging experience in older adults with mild cognitive impairment.
Methods:
The participants were 15 older adults with mild cognitive impairment who had experienced successful aging. Data were collected from January to October 2021 through individual deep, unstructured interviews. Data analysis was performed using Charmaz’s grounded theory method. In addition, the consolidated criteria for reporting qualitative research checklist was used to ensure the quality of the study.
Results:
The key category representing experiences of successful aging experience in older adults with mild cognitive impairment was “raising oneself up in the unsettling crisis of old age.” Four stages were derived: “feeling anguished due to the strange signals of memory,” “being shaken by fading memory,” “maintaining balance for a healthy old age,” and “recovering the composure of old age.”
Conclusion
Participants tried to successfully achieve aging while implementing their own plans and strategies in the midst of the challenges of old age, when the mind and body were unsettled by mild cognitive impairment. The results of this study provide a deep understanding of experiences of successful aging in older adults with mild cognitive impairment, potentially contributing to the development and implement of nursing intervention programs to promote the successful pursuit of aging in this population.
2.Risk of Kawasaki Disease/Multisystem Inflammatory Syndrome Following COVID-19 Vaccination in Korean Children: A Self-Controlled Case Series Study
Suyeon KIM ; Hwa Yeon KO ; Jeongin OH ; Dongwon YOON ; Ju Hwan KIM ; Young June CHOE ; Ju-Young SHIN ; On behalf of the CoVaSC Investigators
Journal of Korean Medical Science 2025;40(3):e10-
Background:
Rare cases of Kawasaki disease (KD) and multisystem inflammatory syndrome in children (MIS-C) have been reported following the coronavirus disease 2019 (COVID-19) vaccination; however, the association between COVID-19 vaccination and the risk of developing KD/MIS-C has not yet been established.
Methods:
We conducted a self-controlled case series analysis using a large-linked database that connects the COVID-19 immunization registry with nationwide claims data. We identified individuals aged < 18 years who received their initial COVID-19 vaccination and had a KD/MIS-C diagnosis with a prescription for intravenous immunoglobulin or corticosteroids between October 18, 2021, and April 15, 2023. The observation period was set as 240 days from the date of the COVID-19 vaccination. The risk window was 60 days after vaccination, with the remaining observation period serving as the control window. The incidence rate ratios (IRRs) and 95% confidence intervals (CIs) in the risk versus control windows were estimated using the conditional Poisson regression model. We further analyzed the vaccine doses and types for secondary analysis. We also performed subgroup analyses stratified by sex, age, comorbidities, and other conditions and sensitivity analyses by varying the length of the risk window and outcome definition.
Results:
Among 2,369,490 individuals who received the COVID-19 vaccination, 12 cases of KD/MIS-C were identified, which included five and seven patients in the risk and control windows, respectively. There was no increased risk of KD/MIS-C within the 60-day period of vaccination (IRR, 0.53; 95% CI, 0.17–1.60). Secondary subgroup and sensitivity analyses showed no significant increase in the risk of KD/MIS-C after COVID-19 vaccination, which is consistent with the results of the main analysis.
Conclusion
The results of this nationwide study suggest that the risk of developing KD/MIS-C did not increase after COVID-19 vaccination. However, owing to the lack of a sufficient number of cases, future studies utilizing multinational long-term follow-up databases should be conducted. Considering the increasing incidence of KD/MIS-C and the limited understanding of its precise biological mechanisms, additional research on KD/MIS-C is warranted.
3.Successful aging among the elderly with mild cognitive impairment facing the crisis of old age: a grounded theory study
Journal of Korean Academy of Nursing 2025;55(2):301-316
Purpose:
The purpose of this study was to understand experiences of successful aging experience in older adults with mild cognitive impairment.
Methods:
The participants were 15 older adults with mild cognitive impairment who had experienced successful aging. Data were collected from January to October 2021 through individual deep, unstructured interviews. Data analysis was performed using Charmaz’s grounded theory method. In addition, the consolidated criteria for reporting qualitative research checklist was used to ensure the quality of the study.
Results:
The key category representing experiences of successful aging experience in older adults with mild cognitive impairment was “raising oneself up in the unsettling crisis of old age.” Four stages were derived: “feeling anguished due to the strange signals of memory,” “being shaken by fading memory,” “maintaining balance for a healthy old age,” and “recovering the composure of old age.”
Conclusion
Participants tried to successfully achieve aging while implementing their own plans and strategies in the midst of the challenges of old age, when the mind and body were unsettled by mild cognitive impairment. The results of this study provide a deep understanding of experiences of successful aging in older adults with mild cognitive impairment, potentially contributing to the development and implement of nursing intervention programs to promote the successful pursuit of aging in this population.
4.Risk of Kawasaki Disease/Multisystem Inflammatory Syndrome Following COVID-19 Vaccination in Korean Children: A Self-Controlled Case Series Study
Suyeon KIM ; Hwa Yeon KO ; Jeongin OH ; Dongwon YOON ; Ju Hwan KIM ; Young June CHOE ; Ju-Young SHIN ; On behalf of the CoVaSC Investigators
Journal of Korean Medical Science 2025;40(3):e10-
Background:
Rare cases of Kawasaki disease (KD) and multisystem inflammatory syndrome in children (MIS-C) have been reported following the coronavirus disease 2019 (COVID-19) vaccination; however, the association between COVID-19 vaccination and the risk of developing KD/MIS-C has not yet been established.
Methods:
We conducted a self-controlled case series analysis using a large-linked database that connects the COVID-19 immunization registry with nationwide claims data. We identified individuals aged < 18 years who received their initial COVID-19 vaccination and had a KD/MIS-C diagnosis with a prescription for intravenous immunoglobulin or corticosteroids between October 18, 2021, and April 15, 2023. The observation period was set as 240 days from the date of the COVID-19 vaccination. The risk window was 60 days after vaccination, with the remaining observation period serving as the control window. The incidence rate ratios (IRRs) and 95% confidence intervals (CIs) in the risk versus control windows were estimated using the conditional Poisson regression model. We further analyzed the vaccine doses and types for secondary analysis. We also performed subgroup analyses stratified by sex, age, comorbidities, and other conditions and sensitivity analyses by varying the length of the risk window and outcome definition.
Results:
Among 2,369,490 individuals who received the COVID-19 vaccination, 12 cases of KD/MIS-C were identified, which included five and seven patients in the risk and control windows, respectively. There was no increased risk of KD/MIS-C within the 60-day period of vaccination (IRR, 0.53; 95% CI, 0.17–1.60). Secondary subgroup and sensitivity analyses showed no significant increase in the risk of KD/MIS-C after COVID-19 vaccination, which is consistent with the results of the main analysis.
Conclusion
The results of this nationwide study suggest that the risk of developing KD/MIS-C did not increase after COVID-19 vaccination. However, owing to the lack of a sufficient number of cases, future studies utilizing multinational long-term follow-up databases should be conducted. Considering the increasing incidence of KD/MIS-C and the limited understanding of its precise biological mechanisms, additional research on KD/MIS-C is warranted.
5.Successful aging among the elderly with mild cognitive impairment facing the crisis of old age: a grounded theory study
Journal of Korean Academy of Nursing 2025;55(2):301-316
Purpose:
The purpose of this study was to understand experiences of successful aging experience in older adults with mild cognitive impairment.
Methods:
The participants were 15 older adults with mild cognitive impairment who had experienced successful aging. Data were collected from January to October 2021 through individual deep, unstructured interviews. Data analysis was performed using Charmaz’s grounded theory method. In addition, the consolidated criteria for reporting qualitative research checklist was used to ensure the quality of the study.
Results:
The key category representing experiences of successful aging experience in older adults with mild cognitive impairment was “raising oneself up in the unsettling crisis of old age.” Four stages were derived: “feeling anguished due to the strange signals of memory,” “being shaken by fading memory,” “maintaining balance for a healthy old age,” and “recovering the composure of old age.”
Conclusion
Participants tried to successfully achieve aging while implementing their own plans and strategies in the midst of the challenges of old age, when the mind and body were unsettled by mild cognitive impairment. The results of this study provide a deep understanding of experiences of successful aging in older adults with mild cognitive impairment, potentially contributing to the development and implement of nursing intervention programs to promote the successful pursuit of aging in this population.
6.Risk of Kawasaki Disease/Multisystem Inflammatory Syndrome Following COVID-19 Vaccination in Korean Children: A Self-Controlled Case Series Study
Suyeon KIM ; Hwa Yeon KO ; Jeongin OH ; Dongwon YOON ; Ju Hwan KIM ; Young June CHOE ; Ju-Young SHIN ; On behalf of the CoVaSC Investigators
Journal of Korean Medical Science 2025;40(3):e10-
Background:
Rare cases of Kawasaki disease (KD) and multisystem inflammatory syndrome in children (MIS-C) have been reported following the coronavirus disease 2019 (COVID-19) vaccination; however, the association between COVID-19 vaccination and the risk of developing KD/MIS-C has not yet been established.
Methods:
We conducted a self-controlled case series analysis using a large-linked database that connects the COVID-19 immunization registry with nationwide claims data. We identified individuals aged < 18 years who received their initial COVID-19 vaccination and had a KD/MIS-C diagnosis with a prescription for intravenous immunoglobulin or corticosteroids between October 18, 2021, and April 15, 2023. The observation period was set as 240 days from the date of the COVID-19 vaccination. The risk window was 60 days after vaccination, with the remaining observation period serving as the control window. The incidence rate ratios (IRRs) and 95% confidence intervals (CIs) in the risk versus control windows were estimated using the conditional Poisson regression model. We further analyzed the vaccine doses and types for secondary analysis. We also performed subgroup analyses stratified by sex, age, comorbidities, and other conditions and sensitivity analyses by varying the length of the risk window and outcome definition.
Results:
Among 2,369,490 individuals who received the COVID-19 vaccination, 12 cases of KD/MIS-C were identified, which included five and seven patients in the risk and control windows, respectively. There was no increased risk of KD/MIS-C within the 60-day period of vaccination (IRR, 0.53; 95% CI, 0.17–1.60). Secondary subgroup and sensitivity analyses showed no significant increase in the risk of KD/MIS-C after COVID-19 vaccination, which is consistent with the results of the main analysis.
Conclusion
The results of this nationwide study suggest that the risk of developing KD/MIS-C did not increase after COVID-19 vaccination. However, owing to the lack of a sufficient number of cases, future studies utilizing multinational long-term follow-up databases should be conducted. Considering the increasing incidence of KD/MIS-C and the limited understanding of its precise biological mechanisms, additional research on KD/MIS-C is warranted.
7.Successful aging among the elderly with mild cognitive impairment facing the crisis of old age: a grounded theory study
Journal of Korean Academy of Nursing 2025;55(2):301-316
Purpose:
The purpose of this study was to understand experiences of successful aging experience in older adults with mild cognitive impairment.
Methods:
The participants were 15 older adults with mild cognitive impairment who had experienced successful aging. Data were collected from January to October 2021 through individual deep, unstructured interviews. Data analysis was performed using Charmaz’s grounded theory method. In addition, the consolidated criteria for reporting qualitative research checklist was used to ensure the quality of the study.
Results:
The key category representing experiences of successful aging experience in older adults with mild cognitive impairment was “raising oneself up in the unsettling crisis of old age.” Four stages were derived: “feeling anguished due to the strange signals of memory,” “being shaken by fading memory,” “maintaining balance for a healthy old age,” and “recovering the composure of old age.”
Conclusion
Participants tried to successfully achieve aging while implementing their own plans and strategies in the midst of the challenges of old age, when the mind and body were unsettled by mild cognitive impairment. The results of this study provide a deep understanding of experiences of successful aging in older adults with mild cognitive impairment, potentially contributing to the development and implement of nursing intervention programs to promote the successful pursuit of aging in this population.
8.Risk of Kawasaki Disease/Multisystem Inflammatory Syndrome Following COVID-19 Vaccination in Korean Children: A Self-Controlled Case Series Study
Suyeon KIM ; Hwa Yeon KO ; Jeongin OH ; Dongwon YOON ; Ju Hwan KIM ; Young June CHOE ; Ju-Young SHIN ; On behalf of the CoVaSC Investigators
Journal of Korean Medical Science 2025;40(3):e10-
Background:
Rare cases of Kawasaki disease (KD) and multisystem inflammatory syndrome in children (MIS-C) have been reported following the coronavirus disease 2019 (COVID-19) vaccination; however, the association between COVID-19 vaccination and the risk of developing KD/MIS-C has not yet been established.
Methods:
We conducted a self-controlled case series analysis using a large-linked database that connects the COVID-19 immunization registry with nationwide claims data. We identified individuals aged < 18 years who received their initial COVID-19 vaccination and had a KD/MIS-C diagnosis with a prescription for intravenous immunoglobulin or corticosteroids between October 18, 2021, and April 15, 2023. The observation period was set as 240 days from the date of the COVID-19 vaccination. The risk window was 60 days after vaccination, with the remaining observation period serving as the control window. The incidence rate ratios (IRRs) and 95% confidence intervals (CIs) in the risk versus control windows were estimated using the conditional Poisson regression model. We further analyzed the vaccine doses and types for secondary analysis. We also performed subgroup analyses stratified by sex, age, comorbidities, and other conditions and sensitivity analyses by varying the length of the risk window and outcome definition.
Results:
Among 2,369,490 individuals who received the COVID-19 vaccination, 12 cases of KD/MIS-C were identified, which included five and seven patients in the risk and control windows, respectively. There was no increased risk of KD/MIS-C within the 60-day period of vaccination (IRR, 0.53; 95% CI, 0.17–1.60). Secondary subgroup and sensitivity analyses showed no significant increase in the risk of KD/MIS-C after COVID-19 vaccination, which is consistent with the results of the main analysis.
Conclusion
The results of this nationwide study suggest that the risk of developing KD/MIS-C did not increase after COVID-19 vaccination. However, owing to the lack of a sufficient number of cases, future studies utilizing multinational long-term follow-up databases should be conducted. Considering the increasing incidence of KD/MIS-C and the limited understanding of its precise biological mechanisms, additional research on KD/MIS-C is warranted.
9.Activatable PROTAC nanoassembly for photodynamic PTP1B proteolysis enhances glioblastoma immunotherapy.
Yeongji JANG ; Jiwoong CHOI ; Byeongmin PARK ; Jung Yeon PARK ; Jae-Hyeon LEE ; Jagyeong GOO ; Dongwon SHIN ; Sun Hwa KIM ; Yongju KIM ; Hyun Kyu SONG ; Jooho PARK ; Kwangmeyung KIM ; Yoosoo YANG ; Man Kyu SHIM
Acta Pharmaceutica Sinica B 2025;15(9):4886-4899
In light of the burgeoning successes of cancer immunotherapy, glioblastoma (GBM) remains refractory due to an immunosuppressive microenvironment originating from its molecular heterogeneity. Thus, identifying promising therapeutic targets for treating GBM and discovering methodologies to effectively regulate them is still a tremendous challenge. Here we describe photodynamic protein tyrosine phosphatase 1B (PTP1B) proteolysis mediated by a proteolysis-targeting chimera (PROTAC) nanoassembly. The PTP1B-targeting PROTAC is conjugated with a photosensitizer via a cathepsin B (Cat B)-cleavable peptide, which spontaneously forms nanoassemblies due to intermolecular π-π stacking interactions. In GBM models, PROTAC nanoassemblies significantly accumulate in the tumor region across the disrupted blood-brain barrier (BBB), triggering a burst release of the photosensitizer and active PROTAC by Cat B-mediated enzymatic cleavage. Upon laser irradiation, photodynamic therapy (PDT) synergizes with PROTAC-mediated PTP1B proteolysis to induce potent immunogenic cell death (ICD) in tumor cells. Subsequently, persistent PTP1B degradation by nanoassemblies in Cat B-overexpressed intratumoral T cells downregulates exhaustion markers, reinvigorating their functionality. These sequential processes of photodynamic PTP1B proteolysis ultimately augment T cell-mediated antitumor immunity as well as protective immunity, completely eradicating the primary GBM and preventing its recurrence. Overall, our findings underscore the therapeutic potential of combining PDT with PROTAC activity for GBM immunotherapy.
10.Patient-Reported Adverse Events Among Elderly Patients Receiving Novel Oral COVID-19 Antivirals:A Nationwide Sampled Survey in Korea
Hyunah JUNG ; Ji Yeon PARK ; Dongwon YOON ; Dong Yoon KANG ; Jaehun JUNG ; Ju Hwan KIM ; Ju-Young SHIN
Journal of Korean Medical Science 2024;39(41):e270-
Background:
There is a dearth of research on the factors linked with adverse events (AEs) associated with nirmatrelvir/ritonavir (NMVr) and molnupiravir (MOL), particularly in the elderly. Therefore, this study aimed to investigate self-reported AEs and identify factors associated with the occurrence of AEs following NMVr or MOL treatment among survey participants aged 60 years or older in South Korea.
Methods:
This nationwide survey was conducted through in-person interviews using structured questionnaires, from July 24 to August 31, 2023. Eligible participants included individuals aged 60 years or older who had been diagnosed with coronavirus disease 2019 (COVID-19) and received NMVr or MOL. The study outcomes included self-reported demographic, lifestyle, and health characteristics associated with the occurrence of AEs.Multivariate logistic regression analysis was used to estimate the adjusted odds ratio (aOR) and 95% confidence interval (CI) of each characteristic in participants with and without AEs.
Results:
Of the 520 participants, 123 (23.7%) experienced at least one AE with oral COVID-19 treatment: 21.0% (96/458) for NMVr and 43.5% (27/62) for MOL. None of the participants reported any serious AEs. Increased odds of AE occurrence were observed in participants treated with MOL compared to those treated with NMVr (aOR, 3.05; 95% CI, 1.67–5.57), a history of two or more compared to one COVID-19 diagnosis (1.93; 1.03–3.62), and selfreported health status as “Unhealthy” compared to “Healthy” (2.65; 1.31–5.36).
Conclusion
No AEs required further evaluation to change treatment strategies in elderly patients on NMVr or MOL. Several factors, including the use of MOL, history of COVID-19, and reported health status, were associated with an increased incidence of AEs. Both treatments may still be useful choices for patients with non-severe COVID-19 aged 60 years or older. However, close monitoring of unidentified potential harm and further investigation of the factors associated with the occurrence of AEs are needed.

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