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.
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.
5.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.
7.Implementation of Novel Fetal Intervention for Fetal Lower Urinary Tract Obstruction and the Importance of Candidate Selection:A Case Report
Won Shik CHOI ; So Yun AHN ; Na Mi LEE ; Na Li YU ; Sooji HAM ; Gwang Jun KIM
Perinatology 2024;35(4):140-145
Fetal lower urinary tract obstruction (LUTO) is a congenital condition in which the bladder fails to excrete urine through the urethra. The primary goal of prenatal treatment for LUTO is the prevention of renal impairment and pulmonary hypoplasia. Vesico-amniotic shunt (VAS) has been the fetal intervention of choice; however, VAS has some limitations, including excretion of urine through an unphysiologic bypass and the need for postnatal corrective reoperation. In this study, we present a novel fetal intervention, a “retro-cystoscopic urethral approach,” performed on a male fetus at 20 weeks gestation diagnosed with enlarged bladder and bilateral hydronephrosis. This approach aims to dilate the narrowed urethra by inserting a urinary catheter using guidewire through a fetal cysto scope. The whole procedure was monitored under real-time ultrasonographic guidance. Despite prenatal intervention, the fetus required multiple cystocenteses, and the bladder dilation persisted.Postnatally, he was diagnosed with megacystis microcolon intestinal hypoperistalsis syndrome, a non-obstructive condition which is relatively rare in male infants. Our case emphasizes the compl exity of diagnosing LUTO during the prenatal period. Further studies exploring novel prenatal interven tions should pay more attention to candidate selection. Additionally, a thorough evaluation of organ systems beyond the urinary tract is necessary.
8.Reverse tube direction and epistaxis in left nasotracheal intubation: a randomized controlled trial
Jun-Young PARK ; Jihion YU ; Chan-Sik KIM ; Taeho MUN ; Woo Shik JEONG ; Jong Woo CHOI ; Kichang LEE ; Young-Kug KIM
Korean Journal of Anesthesiology 2024;77(6):596-604
Background:
The incidence of epistaxis during nasotracheal intubation via the left nostril is more frequent than that during intubation via the right nostril. This study evaluated the effect of the reverse bevel and tip direction of the nasotracheal tube on the incidence of epistaxis during nasotracheal intubation via the left nostril.
Methods:
Patients undergoing right-sided maxillofacial surgery requiring left nasotracheal intubation were randomly allocated to the control (tracheal tube in the conventional direction) or reverse (a 180˚ reverse direction, with the tube bevel facing the nasal septum and the leading edge (i.e., the tip) of the bevel pointing away from the nasal septum) groups (n = 37 for both). The primary outcome was the incidence of epistaxis evaluated using videolaryngoscopy.
Results:
The incidence of epistaxis in the reverse group was significantly lower than that in the control group (9 [24.3%] vs. 20 [54.1%], P = 0.009; relative risk: 0.45, 95% CI [0.24, 0.85], absolute risk reduction: 29.8%, number needed to treat: 3). The severity of epistaxis was significantly lower in the reverse group (P = 0.002). The first attempt nasal passage (P = 0.027) was significantly higher in the reverse group. Postoperative nasal pain was lower (P < 0.001), and patient satisfaction was higher (P < 0.001) in the reverse group. Nasotracheal tube-related complications did not occur in either group.
Conclusions
The reverse bevel and tip direction of the nasotracheal tube reduced the incidence and severity of epistaxis and increased patient satisfaction among patients undergoing left nasotracheal intubation.
9.Cohort profile: Multicenter Networks for Ideal Outcomes of Rare Pediatric Endocrine and Metabolic Diseases in Korea (OUTSPREAD study)
Yun Jeong LEE ; Chong Kun CHEON ; Junghwan SUH ; Jung-Eun MOON ; Moon Bae AHN ; Seong Hwan CHANG ; Jieun LEE ; Jin Ho CHOI ; Minsun KIM ; Han Hyuk LIM ; Jaehyun KIM ; Shin-Hye KIM ; Hae Sang LEE ; Yena LEE ; Eungu KANG ; Se Young KIM ; Yong Hee HONG ; Seung YANG ; Heon-Seok HAN ; Sochung CHUNG ; Won Kyoung CHO ; Eun Young KIM ; Jin Kyung KIM ; Kye Shik SHIM ; Eun-Gyong YOO ; Hae Soon KIM ; Aram YANG ; Sejin KIM ; Hyo-Kyoung NAM ; Sung Yoon CHO ; Young Ah LEE
Annals of Pediatric Endocrinology & Metabolism 2024;29(6):349-355
Rare endocrine diseases are complex conditions that require lifelong specialized care due to their chronic nature and associated long-term complications. In Korea, a lack of nationwide data on clinical practice and outcomes has limited progress in patient care. Therefore, the Multicenter Networks for Ideal Outcomes of Pediatric Rare Endocrine and Metabolic Disease (OUTSPREAD) study was initiated. This study involves 30 centers across Korea. The study aims to improve the long-term prognosis of Korean patients with rare endocrine diseases by collecting comprehensive clinical data, biospecimens, and patient-reported outcomes to identify complications and unmet needs in patient care. Patients with childhood-onset pituitary, adrenal, or gonadal disorders, such as craniopharyngioma, congenital adrenal hyperplasia (CAH), and Turner syndrome were prioritized. The planned enrollment is 1,300 patients during the first study phase (2022–2024). Clinical, biochemical, and imaging data from diagnosis, treatment, and follow-up during 1980–2023 were retrospectively reviewed. For patients who agreed to participate in the prospective cohort, clinical data and biospecimens will be prospectively collected to discover ideal biomarkers that predict the effectiveness of disease control measures and prognosis. Patient-reported outcomes, including quality of life and depression scales, will be evaluated to assess psychosocial outcomes. Additionally, a substudy on CAH patients will develop a steroid hormone profiling method using liquid chromatography-tandem mass spectrometry to improve diagnosis and monitoring of treatment outcomes. This study will address unmet clinical needs by discovering ideal biomarkers, introducing evidence-based treatment guidelines, and ultimately improving long-term outcomes in the areas of rare endocrine and metabolic diseases.
10.Implementation of Novel Fetal Intervention for Fetal Lower Urinary Tract Obstruction and the Importance of Candidate Selection:A Case Report
Won Shik CHOI ; So Yun AHN ; Na Mi LEE ; Na Li YU ; Sooji HAM ; Gwang Jun KIM
Perinatology 2024;35(4):140-145
Fetal lower urinary tract obstruction (LUTO) is a congenital condition in which the bladder fails to excrete urine through the urethra. The primary goal of prenatal treatment for LUTO is the prevention of renal impairment and pulmonary hypoplasia. Vesico-amniotic shunt (VAS) has been the fetal intervention of choice; however, VAS has some limitations, including excretion of urine through an unphysiologic bypass and the need for postnatal corrective reoperation. In this study, we present a novel fetal intervention, a “retro-cystoscopic urethral approach,” performed on a male fetus at 20 weeks gestation diagnosed with enlarged bladder and bilateral hydronephrosis. This approach aims to dilate the narrowed urethra by inserting a urinary catheter using guidewire through a fetal cysto scope. The whole procedure was monitored under real-time ultrasonographic guidance. Despite prenatal intervention, the fetus required multiple cystocenteses, and the bladder dilation persisted.Postnatally, he was diagnosed with megacystis microcolon intestinal hypoperistalsis syndrome, a non-obstructive condition which is relatively rare in male infants. Our case emphasizes the compl exity of diagnosing LUTO during the prenatal period. Further studies exploring novel prenatal interven tions should pay more attention to candidate selection. Additionally, a thorough evaluation of organ systems beyond the urinary tract is necessary.

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