Metabolic risks in living kidney donors in South Korea

( Eunjeong Kang ),( Jina Park ),( Hyo Jeong Kim ),( Sehoon Park ),( Minsu Park ),( Yaerim Kim ),( Kwangsoo Kim ),( Sang Min Park ),( Dong-Wan Chae ),( Ho Jun Chin ),( Jung Pyo Lee ),( Sik Lee ),( Soo 대한신장학회 2021 Kidney Research and Clinical Practice Vol.40 No.4

Background: Considering the growing prevalence of Western lifestyles and related chronic diseases occurring in South Korea, this study aimed to explore the progression of metabolic risk factors in living kidney donors. Methods: This study enrolled living kidney donors from seven hospitals from 1982 to 2016. The controls were individuals that voluntarily received health check-ups from 1995 to 2016 that were matched with donors according to age, sex, diabetes status, baseline estimated glomerular filtration rate, and date of the medical record. Data on hyperuricemia, hypertension, hypercholesterolemia, and overweight/obesity were collected to determine metabolic risks. Logistic regressions with interaction terms between the medical record date and donor status were used to compare the trends in metabolic risks over time in the two groups. Results: A total of 2,018 living kidney donors and matched non-donors were included. The median age was 44.0 years and 54.0% were women. The living kidney donors showed a lower absolute prevalence for all metabolic risk factors, except for those that were overweight/obese, than the non-donors. The proportion of subjects that were overweight/obese was consistently higher over time in the donor group. The changes over time in the prevalence of each metabolic risk were not significantly different between groups, except for a lower prevalence of metabolic risk factors ≥ 3 in donors. Conclusion: Over time, metabolic risks in living kidney donors are generally the same as in non-donors, except for a lower prevalence of metabolic risk factors ≥3 in donors.

Metabolic Acidosis and Long-Term Clinical Outcomes in Kidney Transplant Recipients

Park, Seokwoo,Kang, Eunjeong,Park, Sehoon,Kim, Yong Chul,Han, Seung Seok,Ha, Jongwon,Kim, Dong Ki,Kim, Sejoong,Park, Su-Kil,Han, Duck Jong,Lim, Chun Soo,Kim, Yon Su,Lee, Jung Pyo,Kim, Young Hoon American Society of Nephrology 2017 Journal of the American Society of Nephrology Vol.28 No.6

Mixed Method Needs Analysis in Language Research

Eunjeong Park 21세기영어영문학회 2021 21세기영어영문학회 학술대회 Vol.2021 No.03

Long-term Effects of the Eradication of Helicobacter pylori on Metabolic Parameters, Depending on Sex, in South Korea

Park Jaehyung,Kim Nayoung,Kim Won Seok,Lim Seon Hee,Choi Yonghoon,Jo Hyeong Ho,Ji Eunjeong,Yoon Hyuk,Shin Cheol Min,Park Young Soo,Lee Dong Ho 거트앤리버 소화기연관학회협의회 2023 Gut and Liver Vol.17 No.1

Background/Aims: Helicobacter pylori (HP) infection is positively associated with metabolic syndrome (MS). However, the long-term effects of eradication therapy on MS and sex differences have not been thoroughly studied. We aimed to investigate the long-term effects of HP eradication on MS and sex differences. Methods: This study included 2,267 subjects who visited a tertiary referral center between May 2003 and May 2019. HP was diagnosed by histology, a Campylobacter-like organism test, and culture, and the subjects were prospectively followed up. The participants were categorized into three groups: HP uninfected, HP infected but non-eradicated, and HP eradicated. The baseline characteristics and changes in metabolic parameters after HP eradication were compared over a 5-year follow-up period. Results: Among 1,521 subjects, there was no difference in baseline metabolic parameters between the HP-uninfected (n=509) and HP-infected (n=1,012) groups, regardless of sex. Analysis of the metabolic parameters during follow-up among HP-uninfected (n=509), HP-non-eradicated (n=346), and HP-eradicated (n=666) groups showed that high-density lipoprotein (HDL) and the body mass index (BMI) increased after eradication, with a significant difference at 1-year of follow-up. In females, HDL increased after eradication (p=0.023), and the BMI increased after eradication in male subjects (p=0.010). After propensity score matching, the HDL change in female remained significant, but the statistical significance of the change in BMI in the male group became marginally significant (p=0.089). Conclusions: HP eradication affected metabolic parameters differently depending on sex. HDL significantly increased only in females over time, especially at 1-year of follow-up. In contrast, BMI showed an increasing tendency over time in males, especially at the 1-year follow-up.

The Social Identities and Co-Membership of Preschool Children Revealed through Language Use and Interactions in the Classroom

( Eunjeong Park ) 21세기영어영문학회 2020 영어영문학21 Vol.33 No.3

Recent research has mapped the ways social identity and co-membership have a great impact on the success of children’s language acquisition. Social identity and co-membership are powerful in language learning processes. This study explored the social identities and co-membership of preschool children through language use and interactions with their peers, teachers, and adults in the classroom. The sociocultural theory of learning and the sensitizing concepts are used as the framework of this study to capture what we see in the ordinary social world. Data were collected from observations, interviews, and field notes and analyzed to identify preschool children’s social identities and co-membership in language learning processes. Findings indicate that preschool children’s historical and cultural backgrounds should be appreciated in constructing their social identities and co-membership. The study also implies that ethnographic research should be conducted for deeper understandings of social contexts in shaping people’s lives and experiences.

Use of Machine Learning Classifiers and Sensor Data to Detect Neurological Deficit in Stroke Patients

Park, Eunjeong,Chang, Hyuk-Jae,Nam, Hyo Suk JMIR Publications 2017 Journal of medical Internet research Vol.19 No.4

<P><B>Background</B></P><P>The pronator drift test (PDT), a neurological examination, is widely used in clinics to measure motor weakness of stroke patients.</P><P><B>Objective</B></P><P>The aim of this study was to develop a PDT tool with machine learning classifiers to detect stroke symptoms based on quantification of proximal arm weakness using inertial sensors and signal processing.</P><P><B>Methods</B></P><P>We extracted features of drift and pronation from accelerometer signals of wearable devices on the inner wrists of 16 stroke patients and 10 healthy controls. Signal processing and feature selection approach were applied to discriminate PDT features used to classify stroke patients. A series of machine learning techniques, namely support vector machine (SVM), radial basis function network (RBFN), and random forest (RF), were implemented to discriminate stroke patients from controls with leave-one-out cross-validation.</P><P><B>Results</B></P><P>Signal processing by the PDT tool extracted a total of 12 PDT features from sensors. Feature selection abstracted the major attributes from the 12 PDT features to elucidate the dominant characteristics of proximal weakness of stroke patients using machine learning classification. Our proposed PDT classifiers had an area under the receiver operating characteristic curve (AUC) of .806 (SVM), .769 (RBFN), and .900 (RF) without feature selection, and feature selection improves the AUCs to .913 (SVM), .956 (RBFN), and .975 (RF), representing an average performance enhancement of 15.3%.</P><P><B>Conclusions</B></P><P>Sensors and machine learning methods can reliably detect stroke signs and quantify proximal arm weakness. Our proposed solution will facilitate pervasive monitoring of stroke patients.</P>

Prenatal Exposure to PM<SUB>10</SUB> and NO₂ and Children’s Neurodevelopment from Birth to 24 Months of Age Analyzing with GEE Model

Eunjeong Kim(김은정),HyeSook Park(박혜숙),Yun-Chul Hong(홍윤철),Mina Ha(하미나),Yangho Kim(김양호),Boong-Nnyun Kim(김붕년),Byung-Mi Kim(김병미),Eun-Kyo Park(박은교),Eun-Hee Ha(하은희) 환경독성보건학회 2013 한국독성학회 심포지움 및 학술발표회 Vol.2013 No.10

Unobtrusive and Continuous Monitoring of Alcohol-impaired Gait Using Smart Shoes

Park, Eunjeong,Lee, Sunghoon I.,Nam, Hyo Suk,Garst, Jordan H.,Huang, Alex,Campion, Andrew,Arnell, Monica,Ghalehsariand, Nima,Park, Sangsoo,Chang, Hyuk-jae,Lu, Daniel C.,Sarrafzadeh, Majid Schattauer GmbH (Methods of Information in Medicin 2017 Methods of information in medicine. Vol.56 No.1

<B>Summary</B><P> Background: Alcohol ingestion influences sensory-motor function and the overall well-being of individuals. Detecting alcoholinduced impairments in gait in daily life necessitates a continuous and unobtrusive gait monitoring system. </P><P> Objectives: This paper introduces the development and use of a non-intrusive monitoring system to detect changes in gait induced by alcohol intoxication. </P><P> Methods: The proposed system employed a pair of sensorized smart shoes that are equipped with pressure sensors on the insole. Gait features were extracted and adjusted based on individual’s gait profile. The adjusted gait features were used to train a machine learning classifier to discriminate alcohol-impaired gait from normal walking. In experiment of pilot study, twenty participants completed walking trials on a 12 meter walkway to measure their sober walking and alcohol-impaired walking using smart shoes. </P><P> Results: The proposed system can detect alcohol-impaired gait with an accuracy of 86.2% when pressure value analysis and person-dependent model for the classifier are applied, while statistical analysis revealed that no single feature was discriminative for the detection of gait impairment. </P><P> Conclusions: Alcohol-induced gait disturbances can be detected with smart shoe technology for an automated monitoring in ubiquitous environment. We demonstrated that personal monitoring and machine learning-based prediction could be customized to detect individual variation rather than applying uniform boundary parameters of gait.</P>

Recognition and Characteristics of Purchasing Floral Bouquets of the Consumers at Graduation and Entrance Ceremonies

Eunjeong Park,Jong Won Hong,Jongyun Kim 한국화훼학회 2020 화훼연구 Vol.28 No.2

본 연구는 졸업식, 입학식 시즌에 생화 꽃다발 상품에 관해 소비자 인식과 구입 특성을 알아보고자 10세 이상의 내국인 남, 여 242명을 대상으로 설문조사를 진행하였다. 졸업, 입학식 시즌의 꽃다발 상품 구입 이유에 관한 설문 결과, 특별한 날이기 때문에 가족, 친구들과 좋은 시간을 보내기 위한 능동적인 구입 형태가 가장 높은 것으로 나타났다. 소비자들은 유치원 및 대학교 졸업, 입학식에 비해 초, 중, 고 졸업, 입학식 에 꽃다발 구매 경험이 더 많았으며, 주로 행사 당일 1~2시간 전에 노점에서 상품을 구입하는 것을 선호하였다. 소비자들이 선호하는 꽃다발 가격과 크기는 1~5만원 사이의 중간 (21~50cm) 크기를 선호하였다. 소비자가 생각하는 꽃다발 가격 결정 요인으로는 꽃다발의 품질이 가장 중요한 요소로 생각하였고, 선호하는 절화의 특성은 전제적인 디자인이 가장 중요한 것으로 나타났다. 연령별 소비자가 선호하는 절화 특성으로는 10대는 30대 이상 연령에 비해 선명하고 화려한 색의 절화를 선호하며, 30대가 20대보다 화형이 큰 절화를 선호 하였다. 꽃다발 상품을 구입하지 않는 이유는 가격에 대한 신뢰와 절화수명에 대한 만족도가 떨어지기 때문인 것으로 나타났다. 꽃다발 대체상품으로 보존화, 건조화, 조화 등을 구입하는 비율은 낮았으며, 대체상품을 구입하는 일부 소비자들은 생화보다 오래 볼 수 있으며 관리가 쉽기 때문에 구매하는 경향이 있었다. 본 연구 결과, 변화하는 소비자들의 절화상품 인식 제고를 위해 절화 가격 및 구매 후 관리에 대한 교육과 홍보가 더욱 필요할 것으로 판단된다. The present study surveyed 242 Korean consumers to identify the characteristics of consumer awareness and purchasing habits of floral bouquet products during graduation and entrance ceremonies. According to the results of the survey, consumers purchased floral bouquets during the graduation and entrance ceremony season mainly in order to celebrate a special day with family and friends as the guiding active reason. Consumers possessed more experience with purchasing floral bouquets for the graduation and entrance ceremonies for elementary, middle, and high school, than for kindergarten or university. Consumers purchased the floral bouquets typically one to two hours preceding the event, at the street vendor. Consumers preferred floral bouquets with the prices between 10,000 and 50,000 KRW, and a medium (21 - 50 cm in diameter) size of floral bouquets. The most important price decision factor for floral bouquets for consumers was the quality of the floral bouquet product, and furthermore, the overall bouquet design was the most important characteristic in terms of product selection. According to the age groups, teenagers preferred vivid and colorful cut flower at higher levels that the age category of 30s and older, while the age group of 30s preferred a larger cut flower than the 20s age category. The reasons why the consumers did not purchase floral bouquets were mainly untrustworthy price and short vase life of the products, thus fostering dissatisfaction in consumers. Consumers seldom purchased the replacement floral products including preserved flowers, dried flowers, and plastic flowers as a substitute for floral bouquets during the graduation and entrance ceremonies, but they tended to purchase the replacement floral products due to their longer lifespan and easier maintenance levels. From the results gathered, a proper public education and promotion on the product price and postharvest of cut flowers would be necessary to enhance the consumers’ recognition enhancement of floral products.

Role of RelA/p65 and α-smooth muscle actin of activated hepatic stellate cell in carbon-tetrachloride-induced liver cirrhosis

Eunjeong Kim,Jeong-Ran Park,Hanbyeol Lee,Sung-Min Park,Se-Ran Yang 한국실험동물학회 2015 한국실험동물학회 학술발표대회 논문집 Vol.2015 No.2