1.Protective effect of maltol on pathological response of cardiomyocyte in dystrophic mice
Ahyoung LEE ; Hayeong KWON ; Seulmin KIM ; Yoonhee JEONG ; Byung Tae CHOI ; Changwon KHO
The Korean Journal of Physiology and Pharmacology 2025;29(2):235-244
Heart diseases are a significant contributor to global morbidity and mortality, and despite their diverse and complex mechanisms, treatment options remain limited. Maltol, a natural compound with antioxidant and anti-inflammatory activities, exhibits potential for addressing this need. This study evaluates the cardioprotective effects of maltol in isoproterenol (ISO)-induced cardiac stress models and Duchenne muscular dystrophy (DMD). Maltol’s cardiac cytotoxicity was assessed in rodent (H9c2) and human (AC16) cells and compared with that of dapagliflozin to illustrate its cardiac safety. In ISO-induced stress models, maltol significantly reduced hypertrophic markers and inflammation while enhancing autophagy and antioxidant pathways. In the mdx mice, a DMD model, maltol treatment improved cardiac contractility and reduced pathogenic remodeling. Enhanced phosphorylation of phospholamban and trends toward higher SERCA2a expression indicated enhanced Ca 2+ handling, which is crucial in DMD cardiomyopathy. This study demonstrated that maltol has the potential to provide therapeutic benefits for DMD and other cardiac conditions characterized by hypertrophy and inflammation, as evidenced by its well-known antioxidant properties, low cytotoxicity, and capacity to enhance cardiac function and Ca 2+ handling.
2.Protective effect of maltol on pathological response of cardiomyocyte in dystrophic mice
Ahyoung LEE ; Hayeong KWON ; Seulmin KIM ; Yoonhee JEONG ; Byung Tae CHOI ; Changwon KHO
The Korean Journal of Physiology and Pharmacology 2025;29(2):235-244
Heart diseases are a significant contributor to global morbidity and mortality, and despite their diverse and complex mechanisms, treatment options remain limited. Maltol, a natural compound with antioxidant and anti-inflammatory activities, exhibits potential for addressing this need. This study evaluates the cardioprotective effects of maltol in isoproterenol (ISO)-induced cardiac stress models and Duchenne muscular dystrophy (DMD). Maltol’s cardiac cytotoxicity was assessed in rodent (H9c2) and human (AC16) cells and compared with that of dapagliflozin to illustrate its cardiac safety. In ISO-induced stress models, maltol significantly reduced hypertrophic markers and inflammation while enhancing autophagy and antioxidant pathways. In the mdx mice, a DMD model, maltol treatment improved cardiac contractility and reduced pathogenic remodeling. Enhanced phosphorylation of phospholamban and trends toward higher SERCA2a expression indicated enhanced Ca 2+ handling, which is crucial in DMD cardiomyopathy. This study demonstrated that maltol has the potential to provide therapeutic benefits for DMD and other cardiac conditions characterized by hypertrophy and inflammation, as evidenced by its well-known antioxidant properties, low cytotoxicity, and capacity to enhance cardiac function and Ca 2+ handling.
3.Protective effect of maltol on pathological response of cardiomyocyte in dystrophic mice
Ahyoung LEE ; Hayeong KWON ; Seulmin KIM ; Yoonhee JEONG ; Byung Tae CHOI ; Changwon KHO
The Korean Journal of Physiology and Pharmacology 2025;29(2):235-244
Heart diseases are a significant contributor to global morbidity and mortality, and despite their diverse and complex mechanisms, treatment options remain limited. Maltol, a natural compound with antioxidant and anti-inflammatory activities, exhibits potential for addressing this need. This study evaluates the cardioprotective effects of maltol in isoproterenol (ISO)-induced cardiac stress models and Duchenne muscular dystrophy (DMD). Maltol’s cardiac cytotoxicity was assessed in rodent (H9c2) and human (AC16) cells and compared with that of dapagliflozin to illustrate its cardiac safety. In ISO-induced stress models, maltol significantly reduced hypertrophic markers and inflammation while enhancing autophagy and antioxidant pathways. In the mdx mice, a DMD model, maltol treatment improved cardiac contractility and reduced pathogenic remodeling. Enhanced phosphorylation of phospholamban and trends toward higher SERCA2a expression indicated enhanced Ca 2+ handling, which is crucial in DMD cardiomyopathy. This study demonstrated that maltol has the potential to provide therapeutic benefits for DMD and other cardiac conditions characterized by hypertrophy and inflammation, as evidenced by its well-known antioxidant properties, low cytotoxicity, and capacity to enhance cardiac function and Ca 2+ handling.
4.Awareness and Practice of Global Cancer Prevention Dietary Guidelines among Koreans
Ahyoung YUN ; Yoonjoo CHOI ; Hyein JUNG ; Byungmi KIM
Journal of Cancer Prevention 2025;30(1):32-40
Due to rapid westernization, Korean dietary habits have emerged as significant risk factors for chronic disease and cancer. Despite this transition, Korea’s cancer prevention guidelines have remained consistent since their establishment about 18 years ago. This study aimed to investigate the degree of awareness and practice to global dietary guidelines among Korean adults and identify demographic and lifestyle factors associated with low practice. A cross-sectional survey conducted in 2023 included 4,000 adults and assessed their awareness and practice of four global recommendations: “Eat a diet rich in whole grains,” “Limit consumption of processed meat,” “Limit consumption of sugar-sweetened beverages,” and “Limit consumption of fast and other processed foods.” While more than half of the participants recognized the guidelines’ importance for cancer prevention, implementation rates remained below 40%. Furthermore, over 80% of the respondents expressed a compelling requirement for updated and tailored dietary guidelines. Younger individuals, those who were physically inactive, individuals who had not received prior nutrition education, and participants with obesity were more likely to exhibit low practice, particularly to guidelines limiting processed foods and sugary beverages intake. These findings highlight the need to revise Korea’s cancer prevention recommendations by incorporating global dietary practices and addressing the westernized eating patterns prevalent within the population. Efforts should focus on promoting these updated guidelines through targeted education and public health interventions that improve practice, especially in high-risk groups, and effectively mitigate the burden of diet-related cancers in Korea.
5.Awareness and Practice of Global Cancer Prevention Dietary Guidelines among Koreans
Ahyoung YUN ; Yoonjoo CHOI ; Hyein JUNG ; Byungmi KIM
Journal of Cancer Prevention 2025;30(1):32-40
Due to rapid westernization, Korean dietary habits have emerged as significant risk factors for chronic disease and cancer. Despite this transition, Korea’s cancer prevention guidelines have remained consistent since their establishment about 18 years ago. This study aimed to investigate the degree of awareness and practice to global dietary guidelines among Korean adults and identify demographic and lifestyle factors associated with low practice. A cross-sectional survey conducted in 2023 included 4,000 adults and assessed their awareness and practice of four global recommendations: “Eat a diet rich in whole grains,” “Limit consumption of processed meat,” “Limit consumption of sugar-sweetened beverages,” and “Limit consumption of fast and other processed foods.” While more than half of the participants recognized the guidelines’ importance for cancer prevention, implementation rates remained below 40%. Furthermore, over 80% of the respondents expressed a compelling requirement for updated and tailored dietary guidelines. Younger individuals, those who were physically inactive, individuals who had not received prior nutrition education, and participants with obesity were more likely to exhibit low practice, particularly to guidelines limiting processed foods and sugary beverages intake. These findings highlight the need to revise Korea’s cancer prevention recommendations by incorporating global dietary practices and addressing the westernized eating patterns prevalent within the population. Efforts should focus on promoting these updated guidelines through targeted education and public health interventions that improve practice, especially in high-risk groups, and effectively mitigate the burden of diet-related cancers in Korea.
6.Protective effect of maltol on pathological response of cardiomyocyte in dystrophic mice
Ahyoung LEE ; Hayeong KWON ; Seulmin KIM ; Yoonhee JEONG ; Byung Tae CHOI ; Changwon KHO
The Korean Journal of Physiology and Pharmacology 2025;29(2):235-244
Heart diseases are a significant contributor to global morbidity and mortality, and despite their diverse and complex mechanisms, treatment options remain limited. Maltol, a natural compound with antioxidant and anti-inflammatory activities, exhibits potential for addressing this need. This study evaluates the cardioprotective effects of maltol in isoproterenol (ISO)-induced cardiac stress models and Duchenne muscular dystrophy (DMD). Maltol’s cardiac cytotoxicity was assessed in rodent (H9c2) and human (AC16) cells and compared with that of dapagliflozin to illustrate its cardiac safety. In ISO-induced stress models, maltol significantly reduced hypertrophic markers and inflammation while enhancing autophagy and antioxidant pathways. In the mdx mice, a DMD model, maltol treatment improved cardiac contractility and reduced pathogenic remodeling. Enhanced phosphorylation of phospholamban and trends toward higher SERCA2a expression indicated enhanced Ca 2+ handling, which is crucial in DMD cardiomyopathy. This study demonstrated that maltol has the potential to provide therapeutic benefits for DMD and other cardiac conditions characterized by hypertrophy and inflammation, as evidenced by its well-known antioxidant properties, low cytotoxicity, and capacity to enhance cardiac function and Ca 2+ handling.
7.Awareness and Practice of Global Cancer Prevention Dietary Guidelines among Koreans
Ahyoung YUN ; Yoonjoo CHOI ; Hyein JUNG ; Byungmi KIM
Journal of Cancer Prevention 2025;30(1):32-40
Due to rapid westernization, Korean dietary habits have emerged as significant risk factors for chronic disease and cancer. Despite this transition, Korea’s cancer prevention guidelines have remained consistent since their establishment about 18 years ago. This study aimed to investigate the degree of awareness and practice to global dietary guidelines among Korean adults and identify demographic and lifestyle factors associated with low practice. A cross-sectional survey conducted in 2023 included 4,000 adults and assessed their awareness and practice of four global recommendations: “Eat a diet rich in whole grains,” “Limit consumption of processed meat,” “Limit consumption of sugar-sweetened beverages,” and “Limit consumption of fast and other processed foods.” While more than half of the participants recognized the guidelines’ importance for cancer prevention, implementation rates remained below 40%. Furthermore, over 80% of the respondents expressed a compelling requirement for updated and tailored dietary guidelines. Younger individuals, those who were physically inactive, individuals who had not received prior nutrition education, and participants with obesity were more likely to exhibit low practice, particularly to guidelines limiting processed foods and sugary beverages intake. These findings highlight the need to revise Korea’s cancer prevention recommendations by incorporating global dietary practices and addressing the westernized eating patterns prevalent within the population. Efforts should focus on promoting these updated guidelines through targeted education and public health interventions that improve practice, especially in high-risk groups, and effectively mitigate the burden of diet-related cancers in Korea.
8.Protective effect of maltol on pathological response of cardiomyocyte in dystrophic mice
Ahyoung LEE ; Hayeong KWON ; Seulmin KIM ; Yoonhee JEONG ; Byung Tae CHOI ; Changwon KHO
The Korean Journal of Physiology and Pharmacology 2025;29(2):235-244
Heart diseases are a significant contributor to global morbidity and mortality, and despite their diverse and complex mechanisms, treatment options remain limited. Maltol, a natural compound with antioxidant and anti-inflammatory activities, exhibits potential for addressing this need. This study evaluates the cardioprotective effects of maltol in isoproterenol (ISO)-induced cardiac stress models and Duchenne muscular dystrophy (DMD). Maltol’s cardiac cytotoxicity was assessed in rodent (H9c2) and human (AC16) cells and compared with that of dapagliflozin to illustrate its cardiac safety. In ISO-induced stress models, maltol significantly reduced hypertrophic markers and inflammation while enhancing autophagy and antioxidant pathways. In the mdx mice, a DMD model, maltol treatment improved cardiac contractility and reduced pathogenic remodeling. Enhanced phosphorylation of phospholamban and trends toward higher SERCA2a expression indicated enhanced Ca 2+ handling, which is crucial in DMD cardiomyopathy. This study demonstrated that maltol has the potential to provide therapeutic benefits for DMD and other cardiac conditions characterized by hypertrophy and inflammation, as evidenced by its well-known antioxidant properties, low cytotoxicity, and capacity to enhance cardiac function and Ca 2+ handling.
9.Comparison of MMSE Profiles Between Dementia, Psychotic Disorders, and Mood Disorders
Ahyoung JIN ; Soo-bong JUNG ; Hoyoung AN ; Nak-young KIM ; In-ho PAIK
Journal of Korean Geriatric Psychiatry 2023;27(1):37-42
Objective:
Cognitive impairment has been an area of interest for psychiatrists. Not only do patients with dementia exhibit symptoms associated with cognitive impairment, but those with some mental disorders such as psychotic and mood disorders as well. However, differences in cognitive impairment between these disorders remain unclear. In this study, we used the Korean Mini-Mental State Examination (K-MMSE), a tool that can be easily administered to patients, to compare cognitive impairment profiles among patients with dementia, psychotic disorders, and mood disorders.
Methods:
We collected demographic and clinical characteristics of 59 patients who were over 50 years old. Cognitive func-tion was assessed using the K-MMSE. Patients were divided into three groups based on International Classification of Diseases 10th revision diagnosis codes: 1) F00-F01 Dementia, 2) F20-F29 Psychotic disorders, and 3) F30-F39 Mood disorders. We compared K-MMSE subscale scores between the three groups using one-way analysis of variance.
Results:
The three groups did not differ in demographic data. The dementia group showed the lowest scores in orientation to time (standard deviation [SD]=1.45, F=3.233, p<0.05) and place (SD=1.25, F=3.388, p<0.05), as well as registration (SD=1.00, F=4.425, p<0.05) and recall (SD=0.91, F=3.364, p<0.05) of memory compared to the groups with psychotic and mood disorders. The psychotic disorder group showed significant impairment in language (SD=1.34, F=3.348, p<0.05) compared to the other groups. No significant differences were observed in calculation and drawing.
Conclusion
This study suggests that certain K-MMSE subscale scores could indicate an illness that causes cognitive impairment, especially in dementia, psychotic disorders, and mood disorders. By using K-MMSE profiles, we could provide better in-terventions for patients with cognitive impairment.
10.Development and Validation of a Symptom-Focused Quality of Life Questionnaire (KOQUSS-40) for Gastric Cancer Patients after Gastrectomy
Bang Wool EOM ; Joongyub LEE ; In Seob LEE ; Young-Gil SON ; Keun Won RYU ; Sung Geun KIM ; Hyoung-Il KIM ; Young-Woo KIM ; Seong-Ho KONG ; Oh Kyoung KWON ; Ji-Ho PARK ; Ji Yeong AN ; Chang Hyun KIM ; Byoung-Jo SUH ; Hong Man YOON ; Myoung Won SON ; Ji Yeon PARK ; Jong-Min PARK ; Sang-Ho JEONG ; Moon-Won YOO ; Geum Jong SONG ; Han-Kwang YANG ; Yun-Suhk SUH ; Ki Bum PARK ; Sang-Hoon AHN ; Dong Woo SHIN ; Ye Seob JEE ; Hye-Seong AHN ; Sol LEE ; Jae Seok MIN ; Haejin IN ; Ahyoung KIM ; Hoon HUR ; Hyuk-Joon LEE ;
Cancer Research and Treatment 2021;53(3):763-772
Purpose:
Patients who have undergone gastrectomy have unique symptoms that are not appropriately assessed using currently available tools. This study developed and validated a symptom-focused quality of life (QoL) questionnaire for patients who have received gastrectomy for gastric cancer. Materials and Methods Based on a literature review, patient interviews, and expert consultation by the KOrean QUality of life in Stomach cancer patients Study group (KOQUSS), the initial item pool was developed. Two large-scale developmental studies were then sequentially conducted for exploratory factor analyses for content validity and item reduction. The final item pool was validated in a separate cohort of patients and assessed for internal consistency, test-retest reliability, construct validity, and clinical validity.
Results
The initial questionnaire consisted of 46-items in 12 domains. Data from 465 patients at 11 institutions, followed by 499 patients at 13 institutions, were used to conduct item reduction and exploratory factor analyses. The final questionnaire (KOQUSS-40) comprised 40 items within 11 domains. Validation of KOQUSS-40 was conducted on 413 patients from 12 hospitals. KOQUSS-40 was found to have good model fit. The mean summary score of the KOQUSS-40 was correlated with the EORTC QLQ-C30 and STO22 (correlation coefficients, 0.821 and 0.778, respectively). The KOQUSS-40 score was also correlated with clinical factors, and had acceptable internal consistency (> 0.7). Test-retest reliability was greater than 0.8. Conclusion The KOQUSS-40 can be used to assess QoL of gastric cancer patients after gastrectomy and allows for a robust comparison of surgical techniques in clinical trials.

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