1.Glutathione’s Role in Liver Metabolism and Hangover Symptom Relief: Dysregulation of Protein S-Glutathionylation and Antioxidant Enzymes
Hwa-Young LEE ; Geum-Hwa LEE ; Do-Sung KIM ; Young Jae LIM ; Boram CHO ; Hojung JUNG ; Hyun-shik CHOI ; Soonok SA ; Wookyung CHUNG ; Hyewon LEE ; Myoung Ja CHUNG ; Junghyun KIM ; Han-Jung CHAE
Biomolecules & Therapeutics 2025;33(1):117-128
Hangovers from alcohol consumption cause symptoms like headaches, nausea, and fatigue, disrupting daily activities and overall well-being. Over time, they can also lead to inflammation and oxidative stress. Effective hangover relief alleviates symptoms, prevents dehydration, and replenishes energy needed for daily tasks. Natural foods considered high in antioxidants and antiinflammatory properties may aid in the hepatic breakdown of alcohol. The study aims to investigate the impact of glutathione or its enriched yeast extract, which is recognized for its antioxidant characteristics, on alcohol metabolism and alleviating hangovers in a rat model exposed to binge drinking. In this study, glutathione and its enriched yeast extract controlled hangover behaviour patterns, including locomotor activity. Additionally, it enhanced the activities of alcohol dehydrogenase (ADH) and aldehyde dehydrogenase (ALDH) following ethanol ingestion (3 g/kg). Further, the incorporation of glutathione led to an increase in the expression of antioxidant enzymes, such as SOD and catalase, by activating the nuclear erythroid 2-related factor 2 (Nrf2) signaling pathway.This activation reduced the excessive production of reactive oxygen species (ROS) and malondialdehyde. Next, glutathione modulated the activity of cytochrome P450 2E1 (CYP2E1) and the protein expressions of Bax and Bcl2. Besides, in vitro and in vivo investigations with glutathione demonstrated a regulating effect on the pan-s-glutathionylation and its associated protein expression, glutaredoxin 1 (Grx1), glutathione-S-transferase Pi (GST-π), and glutathione reductase (GR). Together, these findings suggest that glutathione or its enriched yeast extract as a beneficial dietary supplement for alleviating hangover symptoms by enhancing alcohol metabolism and its associated Nrf2/Keap1 signalings.
2.Glutathione’s Role in Liver Metabolism and Hangover Symptom Relief: Dysregulation of Protein S-Glutathionylation and Antioxidant Enzymes
Hwa-Young LEE ; Geum-Hwa LEE ; Do-Sung KIM ; Young Jae LIM ; Boram CHO ; Hojung JUNG ; Hyun-shik CHOI ; Soonok SA ; Wookyung CHUNG ; Hyewon LEE ; Myoung Ja CHUNG ; Junghyun KIM ; Han-Jung CHAE
Biomolecules & Therapeutics 2025;33(1):117-128
Hangovers from alcohol consumption cause symptoms like headaches, nausea, and fatigue, disrupting daily activities and overall well-being. Over time, they can also lead to inflammation and oxidative stress. Effective hangover relief alleviates symptoms, prevents dehydration, and replenishes energy needed for daily tasks. Natural foods considered high in antioxidants and antiinflammatory properties may aid in the hepatic breakdown of alcohol. The study aims to investigate the impact of glutathione or its enriched yeast extract, which is recognized for its antioxidant characteristics, on alcohol metabolism and alleviating hangovers in a rat model exposed to binge drinking. In this study, glutathione and its enriched yeast extract controlled hangover behaviour patterns, including locomotor activity. Additionally, it enhanced the activities of alcohol dehydrogenase (ADH) and aldehyde dehydrogenase (ALDH) following ethanol ingestion (3 g/kg). Further, the incorporation of glutathione led to an increase in the expression of antioxidant enzymes, such as SOD and catalase, by activating the nuclear erythroid 2-related factor 2 (Nrf2) signaling pathway.This activation reduced the excessive production of reactive oxygen species (ROS) and malondialdehyde. Next, glutathione modulated the activity of cytochrome P450 2E1 (CYP2E1) and the protein expressions of Bax and Bcl2. Besides, in vitro and in vivo investigations with glutathione demonstrated a regulating effect on the pan-s-glutathionylation and its associated protein expression, glutaredoxin 1 (Grx1), glutathione-S-transferase Pi (GST-π), and glutathione reductase (GR). Together, these findings suggest that glutathione or its enriched yeast extract as a beneficial dietary supplement for alleviating hangover symptoms by enhancing alcohol metabolism and its associated Nrf2/Keap1 signalings.
3.Glutathione’s Role in Liver Metabolism and Hangover Symptom Relief: Dysregulation of Protein S-Glutathionylation and Antioxidant Enzymes
Hwa-Young LEE ; Geum-Hwa LEE ; Do-Sung KIM ; Young Jae LIM ; Boram CHO ; Hojung JUNG ; Hyun-shik CHOI ; Soonok SA ; Wookyung CHUNG ; Hyewon LEE ; Myoung Ja CHUNG ; Junghyun KIM ; Han-Jung CHAE
Biomolecules & Therapeutics 2025;33(1):117-128
Hangovers from alcohol consumption cause symptoms like headaches, nausea, and fatigue, disrupting daily activities and overall well-being. Over time, they can also lead to inflammation and oxidative stress. Effective hangover relief alleviates symptoms, prevents dehydration, and replenishes energy needed for daily tasks. Natural foods considered high in antioxidants and antiinflammatory properties may aid in the hepatic breakdown of alcohol. The study aims to investigate the impact of glutathione or its enriched yeast extract, which is recognized for its antioxidant characteristics, on alcohol metabolism and alleviating hangovers in a rat model exposed to binge drinking. In this study, glutathione and its enriched yeast extract controlled hangover behaviour patterns, including locomotor activity. Additionally, it enhanced the activities of alcohol dehydrogenase (ADH) and aldehyde dehydrogenase (ALDH) following ethanol ingestion (3 g/kg). Further, the incorporation of glutathione led to an increase in the expression of antioxidant enzymes, such as SOD and catalase, by activating the nuclear erythroid 2-related factor 2 (Nrf2) signaling pathway.This activation reduced the excessive production of reactive oxygen species (ROS) and malondialdehyde. Next, glutathione modulated the activity of cytochrome P450 2E1 (CYP2E1) and the protein expressions of Bax and Bcl2. Besides, in vitro and in vivo investigations with glutathione demonstrated a regulating effect on the pan-s-glutathionylation and its associated protein expression, glutaredoxin 1 (Grx1), glutathione-S-transferase Pi (GST-π), and glutathione reductase (GR). Together, these findings suggest that glutathione or its enriched yeast extract as a beneficial dietary supplement for alleviating hangover symptoms by enhancing alcohol metabolism and its associated Nrf2/Keap1 signalings.
4.Cancer Patients' and Caregivers' Experiences Admitted to Comprehensive Nursing Care Service Wards: An Exploratory Qualitative Research
Sarah LIM ; Mee Young CHO ; Hyun Joo SHIN ; Ki Yeon SONG ; Soo Kyoung SHIM ; Yoon Jung LEE ; Hea Jin KWON ; Ji Eun KIM ; Hui Ean KIM ; Hyun Ja PARK ; Han Wool AN ; So Jeong HYEON ; Sue KIM
Asian Oncology Nursing 2024;24(4):173-183
Purpose:
The purpose of this study was to explore and assess the experiences of cancer patients and their caregivers who had been admitted to comprehensive nursing care service wards.
Methods:
Data were collected from 10 patients and 10 caregivers by in-depth interviews. The data were analyzed using content analysis of Downe-Wamboldt.
Results:
Three categories and seven subcategories were extracted. 1) Realizing institutional limitations of comprehensive nursing care service: ‘Wishing for precise operating systems based on patient severity,’ ‘Anticipating active caregiver participation in treatment process,’ ‘Requiring a countermeasure for safety accidents,’ 2) Professional nursing service which provides relief: ‘Patient-centered professional nursing service,’ ‘Inpatient service that provides relief for patients and caregivers,’ 3) Anticipating continuous use of the service: ‘Inpatient service which users are willing to reuse,’ ‘Wishing for expansion and reinforcement of the service.’
Conclusion
Cancer patients and their caregivers experienced institutional limitations while satisfied with professional nursing service and willing to reuse the service. To improve this situation, institutional support such as separate wards for severe patients, measures for active caregiver participation and prevention of safety accidents, and adequate staffing would be helpful for relatively severe level cancer patients and their caregivers.
5.Cancer Patients' and Caregivers' Experiences Admitted to Comprehensive Nursing Care Service Wards: An Exploratory Qualitative Research
Sarah LIM ; Mee Young CHO ; Hyun Joo SHIN ; Ki Yeon SONG ; Soo Kyoung SHIM ; Yoon Jung LEE ; Hea Jin KWON ; Ji Eun KIM ; Hui Ean KIM ; Hyun Ja PARK ; Han Wool AN ; So Jeong HYEON ; Sue KIM
Asian Oncology Nursing 2024;24(4):173-183
Purpose:
The purpose of this study was to explore and assess the experiences of cancer patients and their caregivers who had been admitted to comprehensive nursing care service wards.
Methods:
Data were collected from 10 patients and 10 caregivers by in-depth interviews. The data were analyzed using content analysis of Downe-Wamboldt.
Results:
Three categories and seven subcategories were extracted. 1) Realizing institutional limitations of comprehensive nursing care service: ‘Wishing for precise operating systems based on patient severity,’ ‘Anticipating active caregiver participation in treatment process,’ ‘Requiring a countermeasure for safety accidents,’ 2) Professional nursing service which provides relief: ‘Patient-centered professional nursing service,’ ‘Inpatient service that provides relief for patients and caregivers,’ 3) Anticipating continuous use of the service: ‘Inpatient service which users are willing to reuse,’ ‘Wishing for expansion and reinforcement of the service.’
Conclusion
Cancer patients and their caregivers experienced institutional limitations while satisfied with professional nursing service and willing to reuse the service. To improve this situation, institutional support such as separate wards for severe patients, measures for active caregiver participation and prevention of safety accidents, and adequate staffing would be helpful for relatively severe level cancer patients and their caregivers.
6.Cancer Patients' and Caregivers' Experiences Admitted to Comprehensive Nursing Care Service Wards: An Exploratory Qualitative Research
Sarah LIM ; Mee Young CHO ; Hyun Joo SHIN ; Ki Yeon SONG ; Soo Kyoung SHIM ; Yoon Jung LEE ; Hea Jin KWON ; Ji Eun KIM ; Hui Ean KIM ; Hyun Ja PARK ; Han Wool AN ; So Jeong HYEON ; Sue KIM
Asian Oncology Nursing 2024;24(4):173-183
Purpose:
The purpose of this study was to explore and assess the experiences of cancer patients and their caregivers who had been admitted to comprehensive nursing care service wards.
Methods:
Data were collected from 10 patients and 10 caregivers by in-depth interviews. The data were analyzed using content analysis of Downe-Wamboldt.
Results:
Three categories and seven subcategories were extracted. 1) Realizing institutional limitations of comprehensive nursing care service: ‘Wishing for precise operating systems based on patient severity,’ ‘Anticipating active caregiver participation in treatment process,’ ‘Requiring a countermeasure for safety accidents,’ 2) Professional nursing service which provides relief: ‘Patient-centered professional nursing service,’ ‘Inpatient service that provides relief for patients and caregivers,’ 3) Anticipating continuous use of the service: ‘Inpatient service which users are willing to reuse,’ ‘Wishing for expansion and reinforcement of the service.’
Conclusion
Cancer patients and their caregivers experienced institutional limitations while satisfied with professional nursing service and willing to reuse the service. To improve this situation, institutional support such as separate wards for severe patients, measures for active caregiver participation and prevention of safety accidents, and adequate staffing would be helpful for relatively severe level cancer patients and their caregivers.
7.ERRATUM: Difference in prognostic impact of lateral pelvic lymph node metastasis between pre- and post-neoadjuvant chemoradiotherapy in rectal cancer patients
Byeo Lee LIM ; In Ja PARK ; Young Il KIM ; Chan Wook KIM ; Jong Lyul LEE ; Yong Sik YOON ; Seok-Byung LIM
Annals of Surgical Treatment and Research 2024;107(3):186-186
8.The influence of self-directed learning ability and self-leadership on the learning satisfaction and academic achievement of nursing students who experienced blended learning
Sungjun KIM ; Ji Young LIM ; Hwasoon KIM ; Kyoung Ja KIM
Journal of Korean Academic Society of Nursing Education 2024;30(3):232-241
Purpose:
The purpose of this study was to analyze the influence of self-directed learning ability and self-leadership on the learning satisfaction and academic achievement of nursing students who experienced blended learning.
Methods:
This research was conducted from June 29 to July 17, 2023, targeting nursing students from three universities in Seoul, Gyeonggi, and Incheon who had experienced blended learning. The collected data were analyzed using a independent t-test, ANOVA, Pearson’s correlation coefficient, and multiple regression utilizing IBM SPSS 25.0.
Results:
Self-directed learning ability, self-leadership, learning satisfaction, and academic achievement were all found to have positive correlations. The research variables that showed a significant effect on learning satisfaction were self-directed learning ability (β=.34, p<.001) and self-leadership (β=.19, p=.041), and the explanatory power was 28.0%. The research variable that showed a significant effect on academic achievement was self-directed learning ability (β=.56, p<.001), with an explanatory power of 40.0%.
Conclusion
To effectively apply blended learning to nursing students in the rapidly changing field of nursing education, it is important to analyze learner factors such as self-directed learning ability and self-leadership. Continuing research is needed to explore the learner factors that influence learning satisfaction and academic achievement, and systematic educational programs that can improve these factors will have to be applied.
9.Can clinicopathologic high-risk features in T3N0 colon cancer be reliable prognostic factors?
Hyun Gu LEE ; Young IL KIM ; In Ja PARK ; Seok-Byung LIM ; Chang Sik YU
Annals of Surgical Treatment and Research 2023;104(2):109-118
Purpose:
The purpose of this study was to assess the reliability and prognostic significance of the high-risk feature (HRF) in patients with T3N0 colon cancer.
Methods:
We included 1,205 patients with pT3N0 colon cancer treated with curative radical resection between 2012 and 2016. HRF was defined as lymphovascular invasion, perineural invasion, poorly/undifferentiated histology, margin involvement, and preoperative obstruction. We investigated the relationships between the number and type of HRF and recurrence-free survival (RFS) and overall survival (OS), as well as the effect of adjuvant treatment.
Results:
A total of 751 of the patients (62.3%) had more than 1 HRF and 515 of the patients (42.7%) underwent adjuvant treatment. Patients who had more than 2 HRFs had a significantly worse 5-year RFS and OS compared to patients who had neither HRF nor even one HRF. According to the findings of the multivariate analysis, the presence of multiple HRFs was a risk factor for a lower RFS and OS. When the quantity and type of HRF were taken into consideration in the multivariate analysis, adjuvant chemotherapy was not found to be linked with RFS or OS in patients with pT3N0 colon cancer.
Conclusion
In the present study, adjuvant treatment based on the current guideline of treatment indication was unable to enhance the prognosis of patients with pT3N0 colon cancer. The role of adjuvant treatment in T3N0 colon cancer must be examined with the HRF count in mind.
10.Efficacy of preoperative chemoradiotherapy in patients with cT2N0 distal rectal cancer
Min Young PARK ; Chang Sik YU ; Tae Won KIM ; Jong Hoon KIM ; Jin-hong PARK ; Jong Lyul LEE ; Yong Sik YOON ; In Ja PARK ; Seok-Byung LIM ; Jin Cheon KIM
Annals of Coloproctology 2023;39(3):250-259
Purpose:
This study was designed to determine the feasibility of preoperative chemoradiotherapy (PCRT) in patients with clinical T2N0 distal rectal cancer.
Methods:
Patients who underwent surgery for clinical T2N0 distal rectal cancer between January 2008 and December 2016 were included. Patients were divided into PCRT and non-PCRT groups. Non-PCRT patients underwent radical resection or local excision (LE) according to the surgeon’s decision, and PCRT patients underwent surgery according to the response to PCRT. Patients received 50.0 to 50.4 gray of preoperative radiotherapy with concurrent chemotherapy.
Results:
Of 127 patients enrolled, 46 underwent PCRT and 81 did not. The mean distance of lesions from the anal verge was lower in the PCRT group (P=0.004). The most frequent operation was transanal excision and ultralow anterior resection in the PCRT and non-PCRT groups, respectively. Of the 46 patients who underwent PCRT, 21 (45.7%) achieved pathologic complete response, including 15 of the 24 (62.5%) who underwent LE. Rectal sparing rate was significantly higher in the PCRT group (11.1% vs. 52.2%, P<0.001). There were no significant differences in 3- and 5-year overall survival and recurrence-free survival regardless of PCRT or surgical procedures.
Conclusion
PCRT in clinical T2N0 distal rectal cancer patients increased the rectal sparing rate via LE and showed acceptable oncologic outcomes. PCRT may be a feasible therapeutic option to avoid abdominoperineal resection in clinical T2N0 distal rectal cancer.

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