2.Online DPPH Assay Coupled with LC-QTOF-MS for Rapid Identification of Antioxidant Constituents from Zelkova serrata
Ngoc Khanh VU ; Chang Jung KIM ; Soo Min KIM ; Young Jun KIM ; Kyeong Seon LEE ; Ki Yong LEE
Natural Product Sciences 2026;32(1):29-37
Zelkova serrata (Thunb.) Makino is a deciduous tree commonly distributed in East Asia. Several investigations have documented the biological activity of extracts of this species, igniting increased interest in its therapeutic potential. However, the phytochemical constituents accountable for these activities remain largely unexplored. In this study, we focused on the antioxidant potential of the leaves and twigs, utilizing bioactivityguided fractionation combined with LC-QTOF-MS online DPPH screening to systematically identify the active compounds. This approach led to the isolation of eight compounds, three of which (compounds 1, 3, and 7) have not previously been documented in the genus Zelkova. Among the isolates, 4 emerged as the most potent antioxidant, exhibiting significant radical scavenging activity in both DPPH (IC 50 = 13.67 ± 1.21 μM) and ABTS (IC50 = 2.69 ± 0.48 μM) assays, exceeding ascorbic acid (IC 50 = 61.51 ± 10.22 μM) and trolox (IC50 = 8.22 ± 2.16 μM), respectively. Our findings not only enrich the phytochemical profile of Z. serrata but also highlight the effectiveness of LC-MS-DPPH as an effective approach for rapid antioxidant discovery.
3.Dietary management of pediatric patients with kidney disease: recommendations by the Korean Society of Pediatric Nephrology and the Korean Society of Clinical Nutrition
Yo Han AHN ; Hee Gyung KANG ; Jiyoung SONG ; Sangmi HAN ; Eujin PARK ; Jin-Soon SUH ; Jeong Yeon KIM ; Min Ji PARK ; Keum Hwa LEE ; Seon Hee LIM ; Kyeong Hun SHIN ; Hyunji KO ; Hyun Joo LEE ; Eunyoung JEONG ; Jinsu KIM ; Sohyun PARK ; Eonju CHOI ; Yuri SEO ; Kyooyung OH ; Jin Kyoung KIM ; Hyun Kyung LEE
Childhood Kidney Diseases 2026;30(1):4-14
Pediatric kidney disease has a relatively lower prevalence than do other pediatric conditions and has a notably different etiology from kidney diseases observed in adults. Furthermore, the pediatric population is unique in that they experience ongoing growth and development, distinguishing them from adult patients. Consequently, pediatric patients with kidney disease require more specialized and meticulous nutritional management than do adults. To address this need and promote optimal dietary practices for pediatric patients with kidney disease, pediatric nephrologists from the Korean Society of Pediatric Nephrology and nutritionists from the Korean Society of Clinical Nutrition have collaborated to establish nutritional guidelines specifically tailored to Korean dietary patterns. These guidelines offer detailed, nutrient-specific recommendations covering energy, protein, calcium, phosphorus, and potassium consumption while providing practical, culturally relevant guidance intended to support both pediatric patients and their caregivers.
4.Assessing and Charting the Future Path : Addressing the Decline of Brain Tumor Specialists in Korea - Insights from the Korean Brain Tumor Society (KBTS) Future Strategy Committee of 2023
Joonho BYUN ; Kyeong-O GO ; Kyung-Min KIM ; Dong-Won SHIN ; Jihwan YOO ; Yeo Song KIM ; Sae Min KWON ; Young Zoon KIM ; Seon-Hwan KIM
Journal of Korean Neurosurgical Society 2025;68(1):97-104
Objective:
: Although Republic of Korea is an advanced country in medical technology with a successful treatment rate for serious diseases, such as cancer, and has improved technology for highly difficult surgery, many excellent medical doctors and physicians are struggling due to the recent unreasonable medical environment. Specialization in brain tumor surgery also faces challenges in Republic of Korea, including low financial incentives, legal threats, and limited career prospects. In response, the Korean Brain Tumor Society (KBTS) formed the Future Strategy Committee to assess these obstacles and propose solutions.
Methods:
: A survey was conducted among the KBTS members to understand their perceptions and concerns across different career stages.
Results:
: The findings revealed a decline in interest among chief residents in brain tumor surgery, owing to limited job opportunities and income prospects. Neurosurgical fellows expressed neutral satisfaction but highlighted challenges, such as low patient numbers and income. Faculty members with varying levels of experience echoed similar concerns, emphasizing the need for improved financial incentives and job stability. Despite these challenges, the respondents expressed dedication to the field and suggested strategies for improvement.
Conclusion
: The KBTS outlines a vision that focuses on practical excellence, comprehensive research, professional education, responsibilities, and member satisfaction. Addressing these challenges requires collaborative efforts among healthcare institutions, professional societies, and policymakers to support brain tumor specialists and enhance patient care.
5.Allergy Inhibition Using Naturally Occurring Compounds Targeting Thymic Stromal Lymphopoietin Pathways: a Comprehensive Review
Le Ba VINH ; Kyeong Seon LEE ; Yoo Kyong HAN ; Young Jun KIM ; Suzy KIM ; Abdul Bari SHAH ; Youngjoo BYUN ; Ki Yong LEE
Biomolecules & Therapeutics 2025;33(2):249-267
Naturally occurring compounds have widely been applied to treat diverse pharmacological effects, including asthma, allergic diseases, antioxidants, inflammation, antibiotics, and cancer. Recent research has revealed the essential role of the thymic stromal lymphopoietin (TSLP) in regulating inflammatory responses at mucosal barriers and maintaining immune homeostasis. Asthma, inflammation, and chronic obstructive pulmonary disease are allergic disorders in which TSLP plays a significant role. Although TSLP’s role in type 2 immune responses has undergone comprehensive investigation, its involvement in inflammatory diseases and cancer has also been found to be expanding. However, investigating how to block the TSLP pathway using natural products has been limited. This paper summarizes the roles of various medicinal plants and their chemical components that effectively inhibit the TSLP pathway. In addition, we also highlight the contributions of several plant-derived compounds to treat allergic diseases via targeting TSLP. This review intends to offer innovative concepts to scientists investigating the use of naturally produced compounds and extracts for the treatment of allergic illnesses.
6.Allergy Inhibition Using Naturally Occurring Compounds Targeting Thymic Stromal Lymphopoietin Pathways: a Comprehensive Review
Le Ba VINH ; Kyeong Seon LEE ; Yoo Kyong HAN ; Young Jun KIM ; Suzy KIM ; Abdul Bari SHAH ; Youngjoo BYUN ; Ki Yong LEE
Biomolecules & Therapeutics 2025;33(2):249-267
Naturally occurring compounds have widely been applied to treat diverse pharmacological effects, including asthma, allergic diseases, antioxidants, inflammation, antibiotics, and cancer. Recent research has revealed the essential role of the thymic stromal lymphopoietin (TSLP) in regulating inflammatory responses at mucosal barriers and maintaining immune homeostasis. Asthma, inflammation, and chronic obstructive pulmonary disease are allergic disorders in which TSLP plays a significant role. Although TSLP’s role in type 2 immune responses has undergone comprehensive investigation, its involvement in inflammatory diseases and cancer has also been found to be expanding. However, investigating how to block the TSLP pathway using natural products has been limited. This paper summarizes the roles of various medicinal plants and their chemical components that effectively inhibit the TSLP pathway. In addition, we also highlight the contributions of several plant-derived compounds to treat allergic diseases via targeting TSLP. This review intends to offer innovative concepts to scientists investigating the use of naturally produced compounds and extracts for the treatment of allergic illnesses.
7.Allergy Inhibition Using Naturally Occurring Compounds Targeting Thymic Stromal Lymphopoietin Pathways: a Comprehensive Review
Le Ba VINH ; Kyeong Seon LEE ; Yoo Kyong HAN ; Young Jun KIM ; Suzy KIM ; Abdul Bari SHAH ; Youngjoo BYUN ; Ki Yong LEE
Biomolecules & Therapeutics 2025;33(2):249-267
Naturally occurring compounds have widely been applied to treat diverse pharmacological effects, including asthma, allergic diseases, antioxidants, inflammation, antibiotics, and cancer. Recent research has revealed the essential role of the thymic stromal lymphopoietin (TSLP) in regulating inflammatory responses at mucosal barriers and maintaining immune homeostasis. Asthma, inflammation, and chronic obstructive pulmonary disease are allergic disorders in which TSLP plays a significant role. Although TSLP’s role in type 2 immune responses has undergone comprehensive investigation, its involvement in inflammatory diseases and cancer has also been found to be expanding. However, investigating how to block the TSLP pathway using natural products has been limited. This paper summarizes the roles of various medicinal plants and their chemical components that effectively inhibit the TSLP pathway. In addition, we also highlight the contributions of several plant-derived compounds to treat allergic diseases via targeting TSLP. This review intends to offer innovative concepts to scientists investigating the use of naturally produced compounds and extracts for the treatment of allergic illnesses.
8.Assessing and Charting the Future Path : Addressing the Decline of Brain Tumor Specialists in Korea - Insights from the Korean Brain Tumor Society (KBTS) Future Strategy Committee of 2023
Joonho BYUN ; Kyeong-O GO ; Kyung-Min KIM ; Dong-Won SHIN ; Jihwan YOO ; Yeo Song KIM ; Sae Min KWON ; Young Zoon KIM ; Seon-Hwan KIM
Journal of Korean Neurosurgical Society 2025;68(1):97-104
Objective:
: Although Republic of Korea is an advanced country in medical technology with a successful treatment rate for serious diseases, such as cancer, and has improved technology for highly difficult surgery, many excellent medical doctors and physicians are struggling due to the recent unreasonable medical environment. Specialization in brain tumor surgery also faces challenges in Republic of Korea, including low financial incentives, legal threats, and limited career prospects. In response, the Korean Brain Tumor Society (KBTS) formed the Future Strategy Committee to assess these obstacles and propose solutions.
Methods:
: A survey was conducted among the KBTS members to understand their perceptions and concerns across different career stages.
Results:
: The findings revealed a decline in interest among chief residents in brain tumor surgery, owing to limited job opportunities and income prospects. Neurosurgical fellows expressed neutral satisfaction but highlighted challenges, such as low patient numbers and income. Faculty members with varying levels of experience echoed similar concerns, emphasizing the need for improved financial incentives and job stability. Despite these challenges, the respondents expressed dedication to the field and suggested strategies for improvement.
Conclusion
: The KBTS outlines a vision that focuses on practical excellence, comprehensive research, professional education, responsibilities, and member satisfaction. Addressing these challenges requires collaborative efforts among healthcare institutions, professional societies, and policymakers to support brain tumor specialists and enhance patient care.
9.Assessing and Charting the Future Path : Addressing the Decline of Brain Tumor Specialists in Korea - Insights from the Korean Brain Tumor Society (KBTS) Future Strategy Committee of 2023
Joonho BYUN ; Kyeong-O GO ; Kyung-Min KIM ; Dong-Won SHIN ; Jihwan YOO ; Yeo Song KIM ; Sae Min KWON ; Young Zoon KIM ; Seon-Hwan KIM
Journal of Korean Neurosurgical Society 2025;68(1):97-104
Objective:
: Although Republic of Korea is an advanced country in medical technology with a successful treatment rate for serious diseases, such as cancer, and has improved technology for highly difficult surgery, many excellent medical doctors and physicians are struggling due to the recent unreasonable medical environment. Specialization in brain tumor surgery also faces challenges in Republic of Korea, including low financial incentives, legal threats, and limited career prospects. In response, the Korean Brain Tumor Society (KBTS) formed the Future Strategy Committee to assess these obstacles and propose solutions.
Methods:
: A survey was conducted among the KBTS members to understand their perceptions and concerns across different career stages.
Results:
: The findings revealed a decline in interest among chief residents in brain tumor surgery, owing to limited job opportunities and income prospects. Neurosurgical fellows expressed neutral satisfaction but highlighted challenges, such as low patient numbers and income. Faculty members with varying levels of experience echoed similar concerns, emphasizing the need for improved financial incentives and job stability. Despite these challenges, the respondents expressed dedication to the field and suggested strategies for improvement.
Conclusion
: The KBTS outlines a vision that focuses on practical excellence, comprehensive research, professional education, responsibilities, and member satisfaction. Addressing these challenges requires collaborative efforts among healthcare institutions, professional societies, and policymakers to support brain tumor specialists and enhance patient care.
10.Assessing and Charting the Future Path : Addressing the Decline of Brain Tumor Specialists in Korea - Insights from the Korean Brain Tumor Society (KBTS) Future Strategy Committee of 2023
Joonho BYUN ; Kyeong-O GO ; Kyung-Min KIM ; Dong-Won SHIN ; Jihwan YOO ; Yeo Song KIM ; Sae Min KWON ; Young Zoon KIM ; Seon-Hwan KIM
Journal of Korean Neurosurgical Society 2025;68(1):97-104
Objective:
: Although Republic of Korea is an advanced country in medical technology with a successful treatment rate for serious diseases, such as cancer, and has improved technology for highly difficult surgery, many excellent medical doctors and physicians are struggling due to the recent unreasonable medical environment. Specialization in brain tumor surgery also faces challenges in Republic of Korea, including low financial incentives, legal threats, and limited career prospects. In response, the Korean Brain Tumor Society (KBTS) formed the Future Strategy Committee to assess these obstacles and propose solutions.
Methods:
: A survey was conducted among the KBTS members to understand their perceptions and concerns across different career stages.
Results:
: The findings revealed a decline in interest among chief residents in brain tumor surgery, owing to limited job opportunities and income prospects. Neurosurgical fellows expressed neutral satisfaction but highlighted challenges, such as low patient numbers and income. Faculty members with varying levels of experience echoed similar concerns, emphasizing the need for improved financial incentives and job stability. Despite these challenges, the respondents expressed dedication to the field and suggested strategies for improvement.
Conclusion
: The KBTS outlines a vision that focuses on practical excellence, comprehensive research, professional education, responsibilities, and member satisfaction. Addressing these challenges requires collaborative efforts among healthcare institutions, professional societies, and policymakers to support brain tumor specialists and enhance patient care.

Result Analysis
Print
Save
E-mail