1.Jolkinolide B Ameliorates Liver Inflammation and Lipogenesis by Regulating JAK/STAT3 Pathway
Hye-Rin NOH ; Guoyan SUI ; Jin Woo LEE ; Feng WANG ; Jeong-Su PARK ; Yuanqiang MA ; Hwan MA ; Ji-Won JEONG ; Dong-Su SHIN ; Xuefeng WU ; Bang-Yeon HWANG ; Yoon Seok ROH
Biomolecules & Therapeutics 2024;32(6):793-800
		                        		
		                        			
		                        			 Hepatic dysregulation of lipid metabolism exacerbates inflammation and enhances the progression of metabolic dysfunction-associated steatotic liver disease (MASLD). STAT3 has been linked to lipid metabolism and inflammation. Jolkinolide B (JB), derived from Euphorbia fischeriana, is known for its pharmacological anti-inflammatory and anti-tumor properties. Therefore, this study investigated whether JB affects MASLD prevention by regulating STAT3 signaling. JB attenuated steatosis and inflammatory responses in palmitic acid (PA)-treated hepatocytes. Additionally, JB treatment reduced the mRNA expression of de-novo lipogenic genes, such as acetyl-CoA carboxylase and stearoyl-CoA desaturase 1. Interestingly, JB-mediated reduction in inflammation and lipogenesis was dependent on STAT3 signaling. JB consistently modulated mitochondrial dysfunction and the mRNA expression of inflammatory cytokines by inhibiting PA-induced JAK/STAT3 activation. This study suggests that JB is a potential therapeutic agent to prevent major stages of MASLD through inhibition of JAK/STAT3 signaling in hepatocytes. 
		                        		
		                        		
		                        		
		                        	
2.Jolkinolide B Ameliorates Liver Inflammation and Lipogenesis by Regulating JAK/STAT3 Pathway
Hye-Rin NOH ; Guoyan SUI ; Jin Woo LEE ; Feng WANG ; Jeong-Su PARK ; Yuanqiang MA ; Hwan MA ; Ji-Won JEONG ; Dong-Su SHIN ; Xuefeng WU ; Bang-Yeon HWANG ; Yoon Seok ROH
Biomolecules & Therapeutics 2024;32(6):793-800
		                        		
		                        			
		                        			 Hepatic dysregulation of lipid metabolism exacerbates inflammation and enhances the progression of metabolic dysfunction-associated steatotic liver disease (MASLD). STAT3 has been linked to lipid metabolism and inflammation. Jolkinolide B (JB), derived from Euphorbia fischeriana, is known for its pharmacological anti-inflammatory and anti-tumor properties. Therefore, this study investigated whether JB affects MASLD prevention by regulating STAT3 signaling. JB attenuated steatosis and inflammatory responses in palmitic acid (PA)-treated hepatocytes. Additionally, JB treatment reduced the mRNA expression of de-novo lipogenic genes, such as acetyl-CoA carboxylase and stearoyl-CoA desaturase 1. Interestingly, JB-mediated reduction in inflammation and lipogenesis was dependent on STAT3 signaling. JB consistently modulated mitochondrial dysfunction and the mRNA expression of inflammatory cytokines by inhibiting PA-induced JAK/STAT3 activation. This study suggests that JB is a potential therapeutic agent to prevent major stages of MASLD through inhibition of JAK/STAT3 signaling in hepatocytes. 
		                        		
		                        		
		                        		
		                        	
3.Jolkinolide B Ameliorates Liver Inflammation and Lipogenesis by Regulating JAK/STAT3 Pathway
Hye-Rin NOH ; Guoyan SUI ; Jin Woo LEE ; Feng WANG ; Jeong-Su PARK ; Yuanqiang MA ; Hwan MA ; Ji-Won JEONG ; Dong-Su SHIN ; Xuefeng WU ; Bang-Yeon HWANG ; Yoon Seok ROH
Biomolecules & Therapeutics 2024;32(6):793-800
		                        		
		                        			
		                        			 Hepatic dysregulation of lipid metabolism exacerbates inflammation and enhances the progression of metabolic dysfunction-associated steatotic liver disease (MASLD). STAT3 has been linked to lipid metabolism and inflammation. Jolkinolide B (JB), derived from Euphorbia fischeriana, is known for its pharmacological anti-inflammatory and anti-tumor properties. Therefore, this study investigated whether JB affects MASLD prevention by regulating STAT3 signaling. JB attenuated steatosis and inflammatory responses in palmitic acid (PA)-treated hepatocytes. Additionally, JB treatment reduced the mRNA expression of de-novo lipogenic genes, such as acetyl-CoA carboxylase and stearoyl-CoA desaturase 1. Interestingly, JB-mediated reduction in inflammation and lipogenesis was dependent on STAT3 signaling. JB consistently modulated mitochondrial dysfunction and the mRNA expression of inflammatory cytokines by inhibiting PA-induced JAK/STAT3 activation. This study suggests that JB is a potential therapeutic agent to prevent major stages of MASLD through inhibition of JAK/STAT3 signaling in hepatocytes. 
		                        		
		                        		
		                        		
		                        	
4.Understanding medical students' empathy based on Enneagram personality types
Hye Rin ROH ; Kyung Hye PARK ; Hyo Jeong KO ; Dong Kyu KIM ; Han Bin SON ; Dong Hyeok SHIN ; Seung Hyeon LEE ; Hee Young JUNG ; Dong HEO
Korean Journal of Medical Education 2019;31(1):73-82
		                        		
		                        			
		                        			PURPOSE: High self-awareness can promote communication and empathy. The Enneagram is a well-known personality tool to enhance self-awareness. We evaluated differences in empathy among medical students using the Enneagram typology. METHODS: This cross-sectional study included first and second grade students at the Inje University College of Medicine. The Jefferson Scale of Empathy was used to measure empathy and the Korean Enneagram Personality Type Indicator was used for examining personality characteristics. Empathy scores were analyzed according to the Triads, Hornevian group, Harmonic group, and each Enneagram type. RESULTS: The Instinctive triad, the Withdrawns, and the Positive outlook group were the most common, and the Feeling triad, the Assertives, and the Emotional realness group were the least common. Students in the Feeling triad and the Dutifuls had higher compassionate care (CC) scores as compared to their counterparts. Type 2 and 6 students showed the two highest empathy and CC scores. The empathy score of type 3 students was the lowest. Type 7 had the lowest CC score but the highest perspective taking score. CONCLUSION: These differences in empathy according to Enneagram personality types can be applied to medical education to maintain and improve medical students' empathy.
		                        		
		                        		
		                        		
		                        			Cross-Sectional Studies
		                        			;
		                        		
		                        			Education, Medical
		                        			;
		                        		
		                        			Empathy
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Instinct
		                        			;
		                        		
		                        			Students, Medical
		                        			
		                        		
		                        	
5.Understanding medical students' empathy based on Enneagram personality types
Hye Rin ROH ; Kyung Hye PARK ; Hyo Jeong KO ; Dong Kyu KIM ; Han Bin SON ; Dong Hyeok SHIN ; Seung Hyeon LEE ; Hee Young JUNG ; Dong HEO
Korean Journal of Medical Education 2019;31(1):73-82
		                        		
		                        			 PURPOSE:
		                        			High self-awareness can promote communication and empathy. The Enneagram is a well-known personality tool to enhance self-awareness. We evaluated differences in empathy among medical students using the Enneagram typology.
		                        		
		                        			METHODS:
		                        			This cross-sectional study included first and second grade students at the Inje University College of Medicine. The Jefferson Scale of Empathy was used to measure empathy and the Korean Enneagram Personality Type Indicator was used for examining personality characteristics. Empathy scores were analyzed according to the Triads, Hornevian group, Harmonic group, and each Enneagram type.
		                        		
		                        			RESULTS:
		                        			The Instinctive triad, the Withdrawns, and the Positive outlook group were the most common, and the Feeling triad, the Assertives, and the Emotional realness group were the least common. Students in the Feeling triad and the Dutifuls had higher compassionate care (CC) scores as compared to their counterparts. Type 2 and 6 students showed the two highest empathy and CC scores. The empathy score of type 3 students was the lowest. Type 7 had the lowest CC score but the highest perspective taking score.
		                        		
		                        			CONCLUSION
		                        			These differences in empathy according to Enneagram personality types can be applied to medical education to maintain and improve medical students' empathy. 
		                        		
		                        		
		                        		
		                        	
6.Assessing clinical reasoning abilities of medical students using clinical performance examination.
Sunju IM ; Do Kyong KIM ; Hyun Hee KONG ; Hye Rin ROH ; Young Rim OH ; Ji Hyun SEO
Korean Journal of Medical Education 2016;28(1):35-47
		                        		
		                        			
		                        			PURPOSE: The purpose of this study is to investigate the reliability and validity of new clinical performance examination (CPX) for assessing clinical reasoning skills and evaluating clinical reasoning ability of the students. METHODS: Third-year medical school students (n=313) in Busan-Gyeongnam consortium in 2014 were included in the study. One of 12 stations was developed to assess clinical reasoning abilities. The scenario and checklists of the station were revised by six experts. Chief complaint of the case was rhinorrhea, accompanied by fever, headache, and vomiting. Checklists focused on identifying of the main problem and systematic approach to the problem. Students interviewed the patient and recorded subjective and objective findings, assessments, plans (SOAP) note for 15 minutes. Two professors assessed students simultaneously. We performed statistical analysis on their scores and survey. RESULTS: The Cronbach α of subject station was 0.878 and Cohen κ coefficient between graders was 0.785. Students agreed on CPX as an adequate tool to evaluate students' performance, but some graders argued that the CPX failed to secure its validity due to their lack of understanding the case. One hundred eight students (34.5%) identified essential problem early and only 58 (18.5%) performed systematic history taking and physical examination. One hundred seventy-three of them (55.3%) communicated correct diagnosis with the patient. Most of them had trouble in writing SOAP notes. CONCLUSION: To gain reliability and validity, interrater agreement should be secured. Students' clinical reasoning skills were not enough. Students need to be trained on problem identification, reasoning skills and accurate record-keeping.
		                        		
		                        		
		                        		
		                        			Checklist
		                        			;
		                        		
		                        			*Clinical Competence
		                        			;
		                        		
		                        			Communication
		                        			;
		                        		
		                        			Comprehension
		                        			;
		                        		
		                        			*Education, Medical, Undergraduate
		                        			;
		                        		
		                        			Educational Measurement/*standards
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Medical History Taking
		                        			;
		                        		
		                        			Medical Records
		                        			;
		                        		
		                        			Observer Variation
		                        			;
		                        		
		                        			Physical Examination
		                        			;
		                        		
		                        			Physician-Patient Relations
		                        			;
		                        		
		                        			*Problem-Based Learning
		                        			;
		                        		
		                        			Reproducibility of Results
		                        			;
		                        		
		                        			Republic of Korea
		                        			;
		                        		
		                        			*Schools, Medical
		                        			;
		                        		
		                        			*Students, Medical
		                        			;
		                        		
		                        			Surveys and Questionnaires
		                        			;
		                        		
		                        			*Thinking
		                        			;
		                        		
		                        			Universities
		                        			
		                        		
		                        	
7.Experience of clinical skills assessment in the Busan-Gyeongnam Consortium.
Beesung KAM ; Young Rim OH ; Sang Hwa LEE ; Hye Rin ROH ; Jong Ryeal HAHM ; Sun Ju IM
Korean Journal of Medical Education 2013;25(4):327-336
		                        		
		                        			
		                        			PURPOSE: The purpose of this study is to judge the quality of clinical skills assessment in Busan-Gyeongnam Consortium. METHODS: Fourth grade medical school students (n=350 in 2012 and n=419 in 2013) in the Busan-Gyeongnam Consortium were included in the study. The examination was consisted of 6 clinical performance examination (CPX) and 6 objective structured clinical examination (OSCE) stations. The students were divided into groups to take the exam in 4 sites during 3 days. The overall reliability was estimated by Cronbach alpha coefficient across the stations and the case reliability was by alpha across checklist items. Analysis of variance and between-group variation were used to evaluate the variation of examinee performance across different days and sites. RESULTS: The mean total CPX/OSCE score was 67.0 points. The overall alpha across-stations was 0.66 in 2012 and 0.61 in 2013. The alpha across-items within a station was 0.54 to 0.86 in CPX, 0.51 to 0.92 in OSCE. There was no significant increase in scores between the different days. The mean scores over sites were different in 30 out of 48 stations but between-group variances were under 30%, except 2 cases. CONCLUSION: The overall reliability was below 0.70 and standardization of exam sites was unclear. To improve the quality of exam, case development, item design, training of standardized patients and assessors, and standardization of sites are necessary. Above of all, we need to develop the well-organized matrix to measure the quality of the exam.
		                        		
		                        		
		                        		
		                        			Checklist
		                        			;
		                        		
		                        			Clinical Competence*
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Outcome and Process Assessment (Health Care)
		                        			;
		                        		
		                        			Psychometrics
		                        			;
		                        		
		                        			Schools, Medical
		                        			
		                        		
		                        	
8.Differentiation Strategy of Graduate Entry Programme.
Hanyang Medical Reviews 2012;32(1):17-24
		                        		
		                        			
		                        			Graduate medical students have been expected to have different characteristics and backgrounds. If it is true, our strategy to educate them should be differentiated. However, basic medical education for graduate entrants in Korea now is not much different from those for non-graduate entrants. Therefore, I investigated the differences between graduate entry and schoolleaver students. Herein, I reviewed their demographics, academic backgrounds, career choice motivation, moral reasoning ability, learning styles and strategy, academic achievement, quality of school life, and outcome after graduation. Also I tried to suggest the differentiated strategy for effective education according to curriculum, teaching and learning, assessment, student support system, and admission selection policy.
		                        		
		                        		
		                        		
		                        			Achievement
		                        			;
		                        		
		                        			Career Choice
		                        			;
		                        		
		                        			Curriculum
		                        			;
		                        		
		                        			Demography
		                        			;
		                        		
		                        			Education, Medical
		                        			;
		                        		
		                        			Education, Medical, Graduate
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Korea
		                        			;
		                        		
		                        			Learning
		                        			;
		                        		
		                        			Motivation
		                        			;
		                        		
		                        			Schools, Medical
		                        			;
		                        		
		                        			Students, Medical
		                        			
		                        		
		                        	
9.Learning Curve for a Laparoscopic Appendectomy by a Surgical Trainee.
Song Yi KIM ; Sung Gun HONG ; Hye Rin ROH ; Seong Bae PARK ; Yang Hee KIM ; Gi Bong CHAE
Journal of the Korean Society of Coloproctology 2010;26(5):324-328
		                        		
		                        			
		                        			PURPOSE: The laparoscopic appendectomy has been a basic part of the principal of a more complex laparoscopic technique for the surgical trainee. As the number of laparoscopic appendectomies performed by surgical trainees has increased, we are trying to check the stability of, which is controversial, and the learning curve associated with a laparoscopic appendectomy. METHODS: We studied the demographics, histologic diagnoses, operative time, the number of complicated cases, and hospital duration of one hundred and three patients who underwent an open appendectomy (group A, 53) or a laparoscopic appendectomy (group B, 50) retrospectively through a review of their medical records. The learning curve for the laparoscopic appendectomy was established through the moving average and ANOVA methods. RESULTS: There were no differences in the operative times (A, 64.15 +/- 29.88 minutes; B, 58.2 +/- 20.72 minutes; P-value, 0.225) and complications (A, 11%; B, 6%; P-value, 0.34) between group A and group B. Group B was divided into group C who underwent the operation in the early period (before the learning curve) and group D who underwent the operation in the later period (after the learning curve). The average operative time for group C was 66.83 +/- 21.55 minutes, but it was 45.25 +/- 10.19 minutes for group D (P-value < 0.0001). Although this difference was statistically significant, no significant difference in the complication rate was observed between the two groups. CONCLUSION: A laparoscopic appendectomy, compared with an open appendectomy, performed by a surgical trainee is safe. In this study, the learning curve for a laparoscopic appendectomy was thirty cases.
		                        		
		                        		
		                        		
		                        			Appendectomy
		                        			;
		                        		
		                        			Demography
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Laparoscopy
		                        			;
		                        		
		                        			Learning
		                        			;
		                        		
		                        			Learning Curve
		                        			;
		                        		
		                        			Medical Records
		                        			;
		                        		
		                        			Operative Time
		                        			;
		                        		
		                        			Retrospective Studies
		                        			
		                        		
		                        	
10.Experience of Implementation of Objective Structured Oral Examination for Ethical Competence Assessment.
Hye Rin ROH ; Ja Kyoung KIM ; Jong Yun HWANG ; Sung Bae PARK ; Sang Wook LEE
Korean Journal of Medical Education 2009;21(1):23-33
		                        		
		                        			
		                        			PURPOSE: We developed an objective structured oral examination (OSOE) case to assess the medical ethics of students. The aim of this study was to assess the reliability of OSOE with generalizability theory. METHODS: One 10-minute OSOE that contained key questions was developed. The evaluation sheet consisted of 4 domains: moral sensitivity, moral reasoning, decision making, and attitude. The total number of items was 13. The numbers of checklist items and global rating items were 11 and 2, respectively. Items and key questions were validated by 6 professionals. Standardization of the raters and the pilot study was performed before the OSOE. Fifty-four third-year medical students participated in the OSOE. The OSOE was duplicated, and 2 professors assessed 1 student independently. Each station lasted 8 minutes and was followed by a 2-minute interval,during which raters completed the checklist forms. We analyzed the reliability of the OSOE with the GENOVA program. RESULTS: The reliability (generalizability coefficient) was 0.945, and the interrater agreement was 0.867. The type of item, checklist or global rating, was the largest variance component. The reliability of the checklist alone was 0.668 and that of the global rating alone was 0.363. CONCLUSION: The OSOE is reliable and can be used to assess ethics. More research should focus on achieving validity.
		                        		
		                        		
		                        		
		                        			Checklist
		                        			;
		                        		
		                        			Clinical Competence
		                        			;
		                        		
		                        			Decision Making
		                        			;
		                        		
		                        			Diagnosis, Oral
		                        			;
		                        		
		                        			Educational Measurement
		                        			;
		                        		
		                        			Ethics, Medical
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Mental Competency
		                        			;
		                        		
		                        			Pilot Projects
		                        			;
		                        		
		                        			Statistics as Topic
		                        			;
		                        		
		                        			Students, Medical
		                        			
		                        		
		                        	
            
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