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Featured researches published by Eun-Kyung Chung.


Journal of Bone and Mineral Metabolism | 2007

Relative contribution of body composition to bone mineral density at different sites in men and women of South Korea

Lian-Hua Cui; Min-Ho Shin; Sun-Seog Kweon; Kyeong-Soo Park; Young-Hoon Lee; Eun-Kyung Chung; Hae-Sung Nam; Jin-Su Choi

We examined the relative contribution of body composition to bone mineral density (BMD) at various sites in 1406 Korean rural men and women, aged 19–80 years, from July to August 2004. The BMD was measured at peripheral (distal forearm and calcaneus) and central (lumbar spine at L1–L4, femoral neck, trochanter, and Wards triangle) using dual-energy X-ray absorptiometry. In multivariate analyses, the linear regression models were adjusted for relevant covariates. In premenopausal women, only lean mass had a significant positive correlation with BMD at all sites. In postmenopausal women, fat mass was significantly positively correlated with BMD at all sites, except the Wards triangle; fat mass was the only determinant of BMD at the lumbar, distal forearm, and calcaneus sites, whereas both lean and fat mass contributed to BMD at the hip, with the effect of lean mass being slightly greater than that of fat mass. In younger men, lean mass had a significant positive contribution to BMD at all sites, whereas fat mass appeared to contribute negatively to BMD at all sites, except the calcaneus. In older men, lean mass made a significant positive contribution to the BMD at all sites; fat mass also made a significant positive contribution to the BMD at the forearm and calcaneus. These data indicate that in the Korean rural population, lean mass may be an important determinant of the BMD, whereas fat mass may contribute positively to BMD only in postmenopausal women and older men.


Medical Teacher | 2009

The effect of team-based learning in medical ethics education

Eun-Kyung Chung; Jung-Ae Rhee; Young-Hong Baik; Oh-Sun A

Background: Although now an important aspect of medical education, teaching medical ethics presents challenges, including a perceived lack of value or relevance by students and a dearth of effective teaching methods for faculty. Team-based learning (TBL) was introduced into our medical ethics course to respond to these needs. Aims: We evaluated the impact of TBL on student engagement and satisfaction and assessed educational achievements. Method: The medical ethics education using TBL consisted of four 2 h sessions for first-year medical students of Chonnam National University Medical School. The impact of TBL on student engagement and the educational achievements was based on numerical data, including scores from IRAT, GRAT, application exercise and final examination, and the students’ perception of medical ethics education using TBL. Results: Most students perceived TBL activities to be more engaging, effective and enjoyable than conventional didactics. The GRAT scores were significantly higher than the IRAT scores, demonstrating the effect of cooperative learning. In addition, TBL improved student performance, especially that of academically weaker students. Conclusions: The application of TBL to medical ethics education improved student performance and increased student engagement and satisfaction. The TBL method should be considered for broader application in medical education.


Journal of Korean Medical Science | 2005

Distribution of the Ankle-Brachial Index and Associated Cardiovascular Risk Factors in a Population of Middle-Aged and Elderly Koreans

Sun-Seog Kweon; Min-Ho Shin; Kyeong-Soo Park; Hae-Sung Nam; Seul-Ki Jeong; So-Yeon Ryu; Eun-Kyung Chung; Jin-Su Choi

The Doppler ankle-brachial pressure index (ABI) is an objective and efficient tool that can be used to determine the presence and severity of peripheral arterial disease in the lower extremities. The ABI value is inversely associated with other cardiovascular risk factors. To date, there have been no studies of the distribution of ABI in Korea. We performed a cross-sectional study of 1,943 subjects (681 men and 1,262 women; 45-74 yr old) in Namwon, Korea. The prevalence of a low ABI (<0.90) was 2.2% in men and 1.8% in women, and a high ABI (≥1.30) was prevalent in 3.1% of men and 0.8% of women. Age, smoking habits, waist circumference, hypertension, and blood pressure were associated with ABI values in both sexes. The presence of carotid plaques was associated with ABI values only in men, whereas pulse pressure was associated with ABI values only in women (p<0.05). Although the prevalence of a low ABI in the present study was lower than those reported previously for Western populations and Japanese men, our results suggest that the ABI might be used as an indicator of cardiovascular risk factors in adult Koreans.


PLOS ONE | 2013

The clinical characteristics, carbapenem resistance, and outcome of Acinetobacter bacteremia according to genospecies.

Kyung-Hwa Park; Jong-Hee Shin; Seung Yeop Lee; Soo Hyun Kim; Mi Ok Jang; Seung-Ji Kang; Sook-In Jung; Eun-Kyung Chung; Kwan Soo Ko; Hee-Chang Jang

Background Few clinical data are available on the relationship between genospecies and outcome of Acinetobacter bacteremia, and the results are inconsistent. We performed this study to evaluate the relationship between genospecies and the outcome of Acinetobacter bacteremia. Methods Clinical data from 180 patients who had Acinetobacter bacteremia from 2003 to 2010 were reviewed retrospectively. The genospecies were identified by rpoB gene sequence analysis. The clinical features and outcomes of 90 patients with A. baumannii bacteremia were compared to those of 90 patients with non-baumannii Acinetobacter bacteremia (60 with A. nosocomialis, 17 with Acinetobacter species “close to 13 TU”, 11 with A. pittii, and two with A. calcoaceticus). Results A. baumannii bacteremia was associated with intensive care unit-onset, mechanical ventilation, pneumonia, carbapenem resistance, and higher APACHE II scores, compared to non-baumannii Acinetobacter bacteremia (P<0.05). In univariate analyses, age, pneumonia, multidrug resistance, carbapenem resistance, inappropriate empirical antibiotics, higher APACHE II scores, and A. baumannii genospecies were risk factors for mortality (P<0.05). Multivariate analysis revealed A. baumannii genospecies (OR, 3.60; 95% CI, 1.56–8.33), age, pneumonia, and higher APACHE II scores to be independent risk factors for mortality (P<0.05). Conclusion A. baumannii genospecies was an independent risk factor for mortality in patients with Acinetobacter bacteremia. Our results emphasize the importance of correct species identification of Acinetobacter blood isolates.


Journal of Korean Medical Science | 2005

Quantitative Ultrasound of the Calcaneus in a Korean Population: Reference Data and Relationship to Bone Mineral Density Determined by Peripheral Dual X-ray Absorptiometry

Min-Ho Shin; Sun-Seog Kweon; Kyeong-Soo Park; Heon Heo; Seung-joon Kim; Hae-Sung Nam; Seul-Ki Jeong; Eun-Kyung Chung; Jin-Su Choi

The aim of this study was to establish reference data for the quantitative ultrasound (QUS) of the calcaneus and for the bone mineral densities (BMD) of the calcaneus and distal forearm, and to evaluate the correlation between QUS parameters and BMD in a Korean population. We performed a cross-sectional study involving 3,053 subjects (1,225 men and 1,828 women). QUS was conducted on the calcaneus and was quantified as speed of sound (SOS, m/sec), broadband ultrasound attenuation (BUA, dB/MHz), and stiffness index. The BMD of the calcaneus and distal forearm were measured using dual X-ray absorptiometry. The peak mean values for the QUS parameters occurred in the 20 to 29-yr-old subjects of both sexes, with the exception of the BUA, which reached the highest values in women of 30-39 yr. For both sexes, the mean BMD of the calcaneus was highest in those 20-29 yr old and that of the distal forearm was highest in those 40-49 yr old. The correlations between the QUS and BMD results were found to be 0.41 to 0.73 in men and 0.51 to 0.76 in women. Theses data can serve as a reference values for both sexes in Korea.


Journal of Korean Medical Science | 2004

Alpha-Adducin Gly460Trp Polymorphism and Essential Hypertension in Korea

Min-Ho Shin; Eun-Kyung Chung; Hee Nam Kim; Kyeong-Soo Park; Hae-Sung Nam; Sun-Seog Kweon; Jin Su Choi

Previous studies have suggested that the Gly460Trp polymorphism of the alpha-adducin gene (ADD-1) is associated with salt sensitivity and primary hypertension. The results of linkage or association studies of ADD-1 of different populations are controversial. This study investigated the relationship between the Gly460Trp polymorphism of ADD-1 and essential hypertension in a Korean population. The subjects (n=903) were participants in a population-based study in Jangseong County, Korea. The Gly460Trp polymorphism of ADD-1 was determined using a polymerase chain reaction method. The frequency of the 460Trp allele was 59.4% in normotensives and 61.1% in hypertensives (p=0.523). The frequencies of the genotypes did not differ significantly between the hypertensive and normotensive groups (16.3% Gly/Gly, 45.8% Gly/Trp, and 38.0% Trp/Trp in normotensives; 16.2% Gly/Gly, 45.8% Gly/Trp, and 38.0% Trp/Trp in hypertensives; p=0.928). After adjusting for other risk factors, Gly/Trp and Trp/Trp were not associated with hypertension (OR 1.00, 95% CI 0.65-1.53, Gly/Trp vs. Gly/Gly; OR 1.22, 95% CI 0.79-1.90, Trp/Trp vs. Gly/Gly). These findings suggest that the Gly460Trp polymorphism of ADD-1 is not associated with hypertension.


PLOS ONE | 2015

Peer-Assisted Learning in a Gross Anatomy Dissection Course.

Eui-Ryoung Han; Eun-Kyung Chung; Kwang-Il Nam

Peer-assisted learning encourages students to participate more actively in the dissection process and promotes thoughtful dissection. We implemented peer-assisted dissection in 2012 and compared its effects on students’ self-assessments of learning and their academic achievement with those of faculty-led dissection. All subjects performed dissections after a lecture about upper-limb gross anatomy. Experimental group (n = 134) dissected a cadaver while guided by peer tutors who had prepared for the dissection in advance, and control group (n = 71) dissected a cadaver after the introduction by a faculty via prosection. Self-assessment scores regarding the learning objectives related to upper limbs were significantly higher in experimental group than in control group. Additionally, experimental group received significantly higher academic scores than did control group. The students in peer-assisted learning perceived themselves as having a better understanding of course content and achieved better academic results compared with those who participated in faculty-led dissection. Peer-assisted dissection contributed to self-perception and to the ability to retain and explain anatomical knowledge.


Chonnam Medical Journal | 2013

Impact of Physician's Education on Adherence to Tuberculosis Treatment for Patients of Low Socioeconomic Status in Bangladesh.

Shinwon Lee; Omar Faruk Khan; Jeong Ho Seo; Dong Yeon Kim; Kyung-Hwa Park; Sook-In Jung; Eun-Kyung Chung; Hee-Chang Jang

Successful tuberculosis control depends on good adherence to treatment. Yet, limited data are available on the efficacy of methods for improving the adherence of patients of low socioeconomic status. We evaluated the impact of physician-provided patient education on adherence to anti-tuberculosis medication in a low socioeconomic status and resource-limited setting. A pre-/post-intervention study was conducted at a suburban primary health care clinic in Bangladesh where an intensive education strategy was established in May 2006. Treatment outcomes of tuberculosis patients from March 2005 to April 2006 (pre-intervention) and from May 2006 to December 2007 (post-intervention) were compared. Among 354 patients, 198 (56%) were treated before intervention and 156 (44%) were treated after intervention. Cumulative adherence to anti-tuberculosis medication was significantly greater in the intervention group than in the control group in univariate and multivariate analyses. Physicians education can contribute to increasing the adherence of patients in resource-limited settings.


Clinical Anatomy | 2013

Advance Organizers in a Gross Anatomy Dissection Course and Their Effects on Academic Achievement

Eun-Kyung Chung; Kwang-Il Nam; Sun-A Oh; Eui-Ryoung Han; Young-Jong Woo; Maurice A. Hitchcock

We presented two kinds of advance organizers (AOs), video clips and prosection, for a gross anatomy dissection course and compared their effects on academic achievement and student perception of the learning experience. In total, 141 students at Chonnam National University Medical School were randomly assigned to two groups: Group 1 (n = 70) was provided with video clips AO, whereas Group 2 (n = 71) was provided with prosection AO, the use of cadaveric specimens dissected by the course instructor. Student self‐assessment scores regarding the learning objectives of upper limb anatomy improved significantly in both groups. Academic achievement scores in Group 2 were significantly higher than those in Group 1, although the self‐assessment scores were not significantly different between the groups. Additionally, students in Group 2 responded significantly more positively to the statements about perception of the learning experience such as helping them understand the course content and concepts, decreasing anxiety about the dissection course, and participating actively in the dissection. It would seem that the application of prosection as an AO improved academic achievement and increased student engagement and satisfaction. This study will contribute to designing effective AOs and developing a teaching and learning strategy for a gross anatomy dissection course. Clin. Anat. 2013.


PLOS ONE | 2016

Comparison of E,E-Farnesol Secretion and the Clinical Characteristics of Candida albicans Bloodstream Isolates from Different Multilocus Sequence Typing Clades.

Sook-In Jung; Jong Hee Shin; Soo Hyun Kim; Jin Kim; Joo Hee Kim; Min Ji Choi; Eun-Kyung Chung; Kyungwon Lee; Sun Hoe Koo; Hyun-Ha Chang; Marie-Elisabeth Bougnoux; Christophe d’Enfert

Using multilocus sequence typing (MLST), Candida albicans can be subdivided into 18 different clades. Farnesol, a quorum-sensing molecule secreted by C. albicans, is thought to play an important role in the development of C. albicans biofilms and is also a virulence factor. This study evaluated whether C. albicans bloodstream infection (BSI) strains belonging to different MLST clades secrete different levels of E,E-farnesol (FOH) and whether they have different clinical characteristics. In total, 149 C. albicans BSI isolates from ten Korean hospitals belonging to clades 18 (n = 28), 4 (n = 23), 1 (n = 22), 12 (n = 17), and other clades (n = 59) were assessed. For each isolate, the FOH level in 24-hour biofilms was determined in filtered (0.45 μm) culture supernatant using high-performance liquid chromatography. Marked differences in FOH secretion from biofilms (0.10–6.99 μM) were observed among the 149 BSI isolates. Clade 18 isolates secreted significantly more FOH than did non-clade 18 isolates (mean ± SEM; 2.66 ± 0.22 vs. 1.69 ± 0.10 μM; P < 0.001). Patients with isolates belonging to clade 18 had a lower mean severity of illness than other patients, as measured using the “acute physiology and chronic health evaluation” (APACHE) III score (14.4 ± 1.1 vs. 18.0 ± 0.7; P < 0.05). This study provides evidence that C. albicans BSI isolates belonging to the most prevalent MLST clade (clade 18) in Korea are characterized by increased levels of FOH secretion and less severe illness.

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Eui-Ryoung Han

Chonnam National University

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Min-Ho Shin

Chonnam National University

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Sun-Seog Kweon

Chonnam National University

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Jung-Ae Rhee

Chonnam National University

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Kyeong-Soo Park

Chonnam National University

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Young-Jong Woo

Chonnam National University

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Hae-Sung Nam

University of Pittsburgh

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Jin-Su Choi

Chonnam National University

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Sook-In Jung

Chonnam National University

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