1.Relationship between Coffee Consumption and Metabolic Syndrome in Korean Adults: Data from the 2013–2014 Korea National Health and Nutrition Examination Survey.
Hyekyung SHIN ; John A LINTON ; Yujin KWON ; Yohan JUNG ; Bitna OH ; Sinae OH
Korean Journal of Family Medicine 2017;38(6):346-351
BACKGROUND: The gradually increasing demand for coffee worldwide has prompted increased interest in the relationship between coffee and health issues as well as a need for research on metabolic syndrome in adults. METHODS: Data from 3,321 subjects (1,268 men and 2,053 women) enrolled in the 2013–2014 Korean National Health and Nutrition Examination Survey were analyzed. The subjects were divided into three groups according to their daily coffee consumption. The odds ratios (ORs) and 95% confidence intervals (95% CIs) for metabolic syndrome in the coffee-drinking groups were calculated using multiple logistic regression analysis by adjusting for confounding variables. RESULTS: The prevalence of metabolic syndrome was 15.5%, 10.7%, and 9.7% in men and 3.0%, 7.1%, and 6.5% in women according to their coffee consumption (less than one, one or two, or more than three cups of coffee per day), respectively. Compared with the non-coffee consumption group, the ORs (95% CIs) for metabolic syndrome in the group that consumed more than three cups of coffee was 0.638 (0.328–1.244) for men and 1.344 (0.627–2.881) for women after adjusting for age, body mass index, household income, education, smoking, alcohol, regular exercise, and daily caloric intake. CONCLUSION: The OR of metabolic syndrome was not statistically significant in both men and women.
Adult*
;
Body Mass Index
;
Coffee*
;
Confounding Factors (Epidemiology)
;
Education
;
Energy Intake
;
Family Characteristics
;
Female
;
Humans
;
Korea*
;
Logistic Models
;
Male
;
Nutrition Surveys*
;
Odds Ratio
;
Prevalence
;
Smoke
;
Smoking
;
Waist Circumference
2.The Latest Trends in Attention Mechanisms and Their Application in Medical Imaging
Hyungseob SHIN ; Jeongryong LEE ; Taejoon EO ; Yohan JUN ; Sewon KIM ; Dosik HWANG
Journal of the Korean Radiological Society 2020;81(6):1305-1333
Deep learning has recently achieved remarkable results in the field of medical imaging. However, as a deep learning network becomes deeper to improve its performance, it becomes more difficult to interpret the processes within. This can especially be a critical problem in medical fields where diagnostic decisions are directly related to a patient's survival. In order to solve this, explainable artificial intelligence techniques are being widely studied, and an attention mechanism was developed as part of this approach. In this paper, attention techniques are divided into two types: post hoc attention, which aims to analyze a network that has already been trained, and trainable attention, which further improves network performance. Detailed comparisons of each method, examples of applications in medical imaging, and future perspectives will be covered.
3.The Latest Trends in Attention Mechanisms and Their Application in Medical Imaging
Hyungseob SHIN ; Jeongryong LEE ; Taejoon EO ; Yohan JUN ; Sewon KIM ; Dosik HWANG
Journal of the Korean Radiological Society 2020;81(6):1305-1333
Deep learning has recently achieved remarkable results in the field of medical imaging. However, as a deep learning network becomes deeper to improve its performance, it becomes more difficult to interpret the processes within. This can especially be a critical problem in medical fields where diagnostic decisions are directly related to a patient's survival. In order to solve this, explainable artificial intelligence techniques are being widely studied, and an attention mechanism was developed as part of this approach. In this paper, attention techniques are divided into two types: post hoc attention, which aims to analyze a network that has already been trained, and trainable attention, which further improves network performance. Detailed comparisons of each method, examples of applications in medical imaging, and future perspectives will be covered.
4.The current status and implications of the medical insurance fee schedule in Japan
Yohan SHIN ; Kye Hyun KIM ; Sung Je MOON ; Joohyun KANG
Journal of the Korean Medical Association 2023;66(12):741-746
Korea has the most rapidly aging population in the world. Medical costs for the elderly are quickly increasing, which raises concerns about the sustainability of health insurance finances. Accordingly, the need to allocate limited medical resources efficiently has increased, with improving the fee schedule seen as an effective way to achieve this. Japan has experienced a super-aging society for at least 20 years prior to Korea and has been successful in improving its fee schedule. Korea’s fee schedule, however, needs to overcome the challenge of being relatively limited in type and simplicity.Current Concepts: The new patient consultation fee in Japan is the same regardless of the type of medical institution and is approximately 40% higher than found in Korea. In the case of established patient consultations, the fee for medical institutions with fewer than 200 beds are substantially higher than for large medical institutions, thereby suppressing re-examination at large hospitals. Japan’s additional points consist of 71 types of items, which is more diverse than Korea’s 28 types, and the additional points for children under six years of age, holidays, and late nights are set significantly higher than that found in Korea.Discussion and Conclusion: Japan designed its fee schedule to structurally reduce the consumption of medical resources and to effectively compensate for the behavior of medical providers. This policy is a standard which Korea’s fee schedule should aim for. In the future, it will be necessary to prepare measures to respond to the super-aging environment through detailed research concerning Japan’s fee schedule.
5.The Pedagogical Validity for a Six Years Curriculum in Pharmacy Education.
Eunbae YANG ; Tai Jin SHIN ; Sunghak KIM ; Yohan GO ; Seunghee LEE
Korean Journal of Medical Education 2005;17(3):225-238
PURPOSE: This study was to examine the pedagogical validity for a the six-years curriculum in pharmacy education in Korea. METHODS: The focus group, composed of 5 specialists, analyzed the pedagogical validity for a six-years curriculum from the perspective of administrative policies of higher education, educational sociology, curriculum composition, and educational economy. In addition, 3 consultants advised on the main issues related to the reformation of the school system in pharmacy education. RESULTS: It is not clear that the reformation of the school system in pharmacy education is aimed at undergraduate or graduate education in view of specialization of a higher education institute. The reformation of the school system is likely to cause educational inequality since a student who lacks financial support and cultural resources might give up entering pharmacy school. It also may ignite a struggle for power between pharmacists and physicians. The six- years curriculum is supposed to offer integrated experiences with a balance of theory and practice, representing characteristics such as consistency, clarity, reliability, and legitimacy. From the educational economy view, the validity of reformation of the school system can only be secured on the premise the expected income exceeds the total costs if the age-earning profile is constant in the current situation. CONCLUSION: Prior to discussions on the reformation of the school system in pharmacy education, the quality of pharmacy education should be improved first through multifarious efforts such as curriculum development, improvement to teaching and learning, introduction to an accreditation system, revision of the license examination, and graduate and continued pharmacy education and so on.
Accreditation
;
Consultants
;
Curriculum*
;
Education
;
Education, Graduate
;
Education, Pharmacy*
;
Financial Support
;
Focus Groups
;
Humans
;
Illegitimacy
;
Korea
;
Learning
;
Licensure
;
Pharmacists
;
Pharmacy*
;
Schools, Pharmacy
;
Socioeconomic Factors
;
Sociology
;
Specialization
6.Development of Virtual Reality-based Visual Perception and Cognitive Rehabilitation Service
YoHan SONG ; JinCheol KIM ; JeongA LEE ; Shin HAN ; YoonGyung LIM ; HyunMin LEE
Journal of Korean Physical Therapy 2019;31(2):67-75
PURPOSE: Patients with brain damage suffer from limitations in performing the activities of daily living (ADL) because of their motor function and visual perception impairment. The aim of this study was to help improve the motor function and visual perception ability of patients with brain damage by providing them with virtual reality-based contents. The usability results of the patients and specialists group were also evaluated. METHODS: The ADL contents consisted of living room, kitchen, veranda, and convenience store, similar to a real home environment, and these were organized by a rehabilitation specialist (e.g., neurologist, physiotherapist, and occupational therapist). The contents consisted of tasks, such as turning on the living room lights, organizing the drawers, organizing the kitchen, watering the plants on the veranda, and buying products at convenience stores. To evaluate the usability of the virtual reality-based visual cognitive rehabilitation service, general elderly subjects (n=11), stroke patients (n=7), stroke patients with visual impairment (n=4), and rehabilitation specialists (n=11) were selected. The questionnaires were distributed to the subjects who were using the service, and the subjective satisfaction of individual users was obtained as data. The data were analyzed using SPSS 21.0 software. The general characteristics of the users and the evaluation scores of the experts were analyzed using descriptive statistics. RESULTS: The usability test result of this study showed that the mean value of the questionnaire related to content understanding and difficulty was high, between 4–5 points. CONCLUSION: The virtual reality rehabilitation service of this study is an efficient service that can improve the function, interest, and motivation of stroke patients.
Activities of Daily Living
;
Aged
;
Brain
;
Cognitive Therapy
;
Humans
;
Motivation
;
Physical Therapists
;
Rehabilitation
;
Specialization
;
Stroke
;
Vision Disorders
;
Visual Perception
;
Water
7.Ultrasound-guided placement of a permanent peripheral nerve stimulator in a patient with complex regional pain syndrome: A case report.
Woosuk CHUNG ; Yohan KIM ; Jiyong LEE ; Sunyul LEE ; Yoonhee KIM ; Yongsup SHIN ; Wonhyung LEE ; Youngkwon KO
Anesthesia and Pain Medicine 2016;11(3):295-298
A 56-year-old man complained of continuous pain in the right foot that began 6 months after undergoing surgery on the right calcaneus bone. The patient was diagnosed with complex regional pain syndrome (CRPS) type I and was treated with medication, lumbar sympathetic ganglion blocks, epidural nerve blocks, and spinal cord stimulation. However, all treatments were halted because they were ineffective or complications developed. Peripheral nerve stimulation (PNS) was planned after confirming the analgesic effects of a sciatic nerve block, and the patient received PNS via minimally invasive ultrasound-guided electrode placement. PNS reduced the pain intensity and the incidence of paroxysmal pain. Other than discomfort at the battery insertion site (resolved with re-implantation), the patient developed no complications. These results suggest that ultrasound-guided minimally invasive PNS is a safe and effective treatment for patients with CRPS in the lower extremities.
Calcaneus
;
Complex Regional Pain Syndromes
;
Electrodes
;
Foot
;
Ganglia, Sympathetic
;
Humans
;
Implantable Neurostimulators
;
Incidence
;
Lower Extremity
;
Middle Aged
;
Nerve Block
;
Neuralgia
;
Pain Management
;
Peripheral Nerves*
;
Sciatic Nerve
;
Spinal Cord Stimulation
;
Ultrasonography
8.CORRIGENDUM: Epigenetic modulation inhibits epithelial-mesenchymal transition-driven fibrogenesis and enhances characteristics of chemically-derived hepatic progenitors
Michael ADISASMITA ; Hyomin K LEE ; Yohan AN ; Myounghoi KIM ; Michael Girma MAMO ; Junho K. HUR ; Dongho CHOI ; Ji Hyun SHIN ; Yun Kyung JUNG
Annals of Surgical Treatment and Research 2024;106(6):370-370
9.Epigenetic modulation inhibits epithelial-mesenchymal transition-driven fibrogenesis and enhances characteristics of chemically-derived hepatic progenitors
Michael ADISASMITA ; Hyomin K LEE ; Yohan AN ; Myounghoi KIM ; Michael Girma MAMO ; Junho K. HUR ; Dongho CHOI ; Ji Hyun SHIN ; Yun Kyung JUNG
Annals of Surgical Treatment and Research 2024;106(5):274-283
Purpose:
One of the novel cell sources of cell-based liver regenerative medicine is human chemically-derived hepatic progenitors (hCdHs). We previously established this cell by direct hepatocyte reprogramming with a combination of small molecules (hepatocyte growth factor, A83-01, CHIR99021). However, there have been several issues concerning the cell’s stability and maintenance, namely the occurrences of epithelial-mesenchymal transition (EMT) that develop fibrotic phenotypes, resulting in the loss of hepatic progenitor characteristics. These hepatic progenitor attributes are thought to be regulated by SOX9, a transcription factor essential for hepatic progenitor cells and cholangiocytes.
Methods:
To suppress the fibrotic phenotype and improve our long-term hCdHs culture technology, we utilized the epigenetic modulating drugs DNA methyltransferase inhibitor (5-azacytidine) and histone deacetylase inhibitor (sodium butyrate) that have been reported to suppress and revert hepatic fibrosis. To confirm the essential role of SOX9 to our cell, we used clustered regularly interspaced short palindromic repeats-interference (CRISPRi) to repress the SOX9 expression.
Results:
The treatment of only 5-azacytidine significantly reduces the fibrosis/mesenchymal marker and EMT-related transcription factor expression level in the early passages. Interestingly, this treatment also increased the hepatic progenitor markers expression, even during the reprogramming phase. Then, we confirmed the essential role of SOX9 by repressing the SOX9 expression with CRISPRi which resulted in the downregulation of several essential hepatic progenitor cell markers.
Conclusion
These results highlight the capacity of 5-azacytidine to inhibit EMT-driven hepatic fibrosis and the significance of SOX9 on hepatic progenitor cell stemness properties.
10.Two Cases of Acute Renal Failure Complicating Paroxysmal Nocturnal Hemoglobinuria in Children.
Jung Min RYU ; Yohan AHN ; Sohee LEE ; Hyun Jin CHOI ; Beom Hee LEE ; Hee Gyung KANG ; Hyoung Jin KANG ; Hee Young SHIN ; Il Soo HA ; Hae Il CHEONG ; Hyo Seop AHN ; Yong CHOI
Journal of the Korean Society of Pediatric Nephrology 2008;12(2):221-226
Paroxysmal nocturnal hemoglobinuria(PNH) is an acquired hematologic disorder characterized by intravascular hemolysis, nocturnal hemoglobinuria, thrombotic events and bone marrow failure. It rarely occurs in children and can be complicated by acute renal failure(ARF). Here, we present two cases of ARF complicating PNH which has not been reported yet in Korean children. We suggest that PNH should be considered in differential diagnosis of ARF in children associated with intravascular hemolysis.
Acute Kidney Injury
;
Bone Marrow
;
Child
;
Diagnosis, Differential
;
Hemoglobinuria
;
Hemoglobinuria, Paroxysmal
;
Hemolysis
;
Humans