1.Adipose Tissue and Metabolic Health
Sung-Min AN ; Seung-Hee CHO ; John C. YOON
Diabetes & Metabolism Journal 2023;47(5):595-611
In this review, we provide a brief synopsis of the connections between adipose tissue and metabolic health and highlight some recent developments in understanding and exploiting adipocyte biology. Adipose tissue plays critical roles in the regulation of systemic glucose and lipid metabolism and secretes bioactive molecules possessing endocrine, paracrine, and autocrine functions. Dysfunctional adipose tissue has a detrimental impact on metabolic health and is intimately involved in key aspects of metabolic diseases such as insulin resistance, lipid overload, inflammation, and organelle stress. Differences in the distribution of fat depots and adipose characteristics relate to divergent degrees of metabolic dysfunction found in metabolically healthy and unhealthy obese individuals. Thermogenic adipocytes increase energy expenditure via mitochondrial uncoupling or adenosine triphosphate-consuming futile substrate cycles, while functioning as a metabolic sink and participating in crosstalk with other metabolic organs. Manipulation of adipose tissue provides a wealth of opportunities to intervene and combat the progression of associated metabolic diseases. We discuss current treatment modalities for obesity including incretin hormone analogs and touch upon emerging strategies with therapeutic potential including exosome-based therapy, pharmacological activation of brown and beige adipocyte thermogenesis, and administration or inhibition of adipocyte-derived factors.
2.Impact of coronavirus disease 2019 on patients with chronic pain: multicenter study in Korea
Hyunji JOHN ; Hyunji JOHN ; Yun Hee LIM ; Yun Hee LIM ; Sung Jun HONG ; Sung Jun HONG ; Jae Hun JEONG ; Jae Hun JEONG ; Hey Ran CHOI ; Hey Ran CHOI ; Sun Kyung PARK ; Jung Eun KIM ; Byung-soo KIM ; Jae Hun KIM
The Korean Journal of Pain 2022;35(2):209-223
Background:
The coronavirus disease 2019 (COVID-19) pandemic has caused significant changes. This study aimed to investigate the impact of COVID-19 on patients with chronic pain.
Methods:
Patients with chronic pain from 23 university hospitals in South Korea participated in this study. The anonymous survey questionnaire consisted of 25 questions regarding the following: demographic data, diagnosis, hospital visit frequency, exercise duration, time outside, sleep duration, weight change, nervousness and anxiety, depression, interest or pleasure, fatigue, daily life difficulties, and self-harm thoughts. Depression severity was evaluated using the Patient Health Questionnaire-9 (PHQ-9). Logistic regression analysis was used to investigate the relationship between increased pain and patient factors.
Results:
A total of 914 patients completed the survey, 35.9% of whom had decreased their number of visits to the hospital, mostly due to COVID-19. The pain level of 200 patients has worsened since the COVID-19 outbreak, which was more prominent in complex regional pain syndrome (CRPS). Noticeable post-COVID-19 changes such as exercise duration, time spent outside, sleep patterns, mood, and weight affected patients with chronic pain. Depression severity was more significant in patients with CRPS. The total PHQ-9 average score of patients with CRPS was 15.5, corresponding to major depressive orders. The patients’ decreased exercise duration, decreased sleep duration, and increased depression were significantly associated with increased pain.
Conclusions
COVID-19 has caused several changes in patients with chronic pain.During the pandemic, decreased exercise and sleep duration and increased depression were associated with patients’ increasing pain.
4.2019 Seoul Consensus on Esophageal Achalasia Guidelines
Hye-Kyung JUNG ; Su Jin HONG ; Oh Young LEE ; John PANDOLFINO ; Hyojin PARK ; Hiroto MIWA ; Uday C GHOSHAL ; Sanjiv MAHADEVA ; Tadayuki OSHIMA ; Minhu CHEN ; Andrew S B CHUA ; Yu Kyung CHO ; Tae Hee LEE ; Yang Won MIN ; Chan Hyuk PARK ; Joong Goo KWON ; Moo In PARK ; Kyoungwon JUNG ; Jong Kyu PARK ; Kee Wook JUNG ; Hyun Chul LIM ; Da Hyun JUNG ; Do Hoon KIM ; Chul-Hyun LIM ; Hee Seok MOON ; Jung Ho PARK ; Suck Chei CHOI ; Hidekazu SUZUKI ; Tanisa PATCHARATRAKUL ; Justin C Y WU ; Kwang Jae LEE ; Shinwa TANAKA ; Kewin T H SIAH ; Kyung Sik PARK ; Sung Eun KIM ;
Journal of Neurogastroenterology and Motility 2020;26(2):180-203
Esophageal achalasia is a primary motility disorder characterized by insufficient lower esophageal sphincter relaxation and loss of esophageal peristalsis. Achalasia is a chronic disease that causes progressive irreversible loss of esophageal motor function. The recent development of high-resolution manometry has facilitated the diagnosis of achalasia, and determining the achalasia subtypes based on high-resolution manometry can be important when deciding on treatment methods. Peroral endoscopic myotomy is less invasive than surgery with comparable efficacy. The present guidelines (the “2019 Seoul Consensus on Esophageal Achalasia Guidelines”) were developed based on evidence-based medicine; the Asian Neurogastroenterology and Motility Association and Korean Society of Neurogastroenterology and Motility served as the operating and development committees, respectively. The development of the guidelines began in June 2018, and a draft consensus based on the Delphi process was achieved in April 2019. The guidelines consist of 18 recommendations: 2 pertaining to the definition and epidemiology of achalasia, 6 pertaining to diagnoses, and 10 pertaining to treatments. The endoscopic treatment section is based on the latest evidence from meta-analyses. Clinicians (including gastroenterologists, upper gastrointestinal tract surgeons, general physicians, nurses, and other hospital workers) and patients could use these guidelines to make an informed decision on the management of achalasia.
5.A Novel Case of Extreme Thrombocytosis in Acute Myeloid Leukemia Associated With Isochromosome 17q and Copy Neutral Loss of Heterozygosity.
Eunkyoung YOU ; Sun Young CHO ; John Jeongseok YANG ; Hee Joo LEE ; Woo In LEE ; Juhie LEE ; Kyung Sam CHO ; Eun Hae CHO ; Tae Sung PARK
Annals of Laboratory Medicine 2015;35(3):366-369
6.Stress Cardiomyopathy due to Misuse of Transdermal Fentanyl Patches in an Elderly Patient.
Ji Eun SONG ; Jay Young RHEW ; Ji Hyun LIM ; Sung Hee JOHN ; Jong Pil PARK ; Dong Yob LEE
Journal of the Korean Geriatrics Society 2015;19(2):99-101
Stress cardiomyopathy is characterized by transient systolic dysfunction of the apical and/or mid segment of the left ventricle. The main pathophysiology of stress cardiomyopathy is the excessive release of catecholamine. Opioid withdrawal can initiate a surge of catecholamine and an attack of stress cardiomyopathy. In this case, we report a case of stress cardiomyopathy due to iatrogenic withdrawal from transdermal fentanyl.
Aged*
;
Fentanyl*
;
Heart Ventricles
;
Humans
;
Takotsubo Cardiomyopathy*
7.Clinical and Molecular Delineation of a Novel De Novo 4q28.3-31.21 Interstitial Deletion in a Patient with Developmental Delay.
John Hoon RIM ; Seong Woo KIM ; Sung Hee HAN ; Jongha YOO
Yonsei Medical Journal 2015;56(6):1742-1744
No abstract available.
Child
;
Chromosome Banding
;
*Chromosome Deletion
;
Chromosomes, Human, Pair 4/*genetics
;
Comparative Genomic Hybridization
;
Developmental Disabilities/diagnosis/*genetics
;
Humans
;
Male
;
Sequence Deletion
8.Diagnostic Usefulness of Genomic Breakpoint Analysis of Various Gene Rearrangements in Acute Leukemias: A Perspective of Long Distance- or Long Distance Inverse-PCR-based Approaches.
John Jeongseok YANG ; Rolf MARSCHALEK ; Claus MEYER ; Tae Sung PARK
Annals of Laboratory Medicine 2012;32(4):316-318
No abstract available.
Acute Disease
;
*Gene Rearrangement
;
Genome, Human
;
Humans
;
Leukemia/*diagnosis/genetics
;
Polymerase Chain Reaction/*methods
;
Translocation, Genetic
9.A Case of Cryptogenic Stroke Associated with Patent Foramen Ovale Coexisting with Pulmonary Embolisms, Deep Vein Thromboses, and Renal Artery Infarctions.
Moon Sik PARK ; Jong Pil PARK ; So Hee YUN ; Jae Un LEE ; Joong Keun KIM ; Na Eun LEE ; Ji Eun SONG ; Shin Eun LEE ; Sung Hee JOHN ; Ji Hyun LIM ; Jay Young RHEW
Korean Circulation Journal 2012;42(12):853-856
A paradoxical embolism is defined as a systemic arterial embolism requiring the passage of a venous thrombus into the arterial circulatory system through a right-to-left shunt, and is commonly related to patent foramen ovale (PFO). However, coexisting pulmonary embolisms, deep vein thromboses (DVT), and multipe systemic arterial embolisms, associated with PFO, are rare. Here, we report a patient who had a cryptogenic ischemic stroke, associated with PFO, which is complicated with a massive pulmonary thromboembolism, DVT, and renal infarctions, and subsequently, the patient was treated using a thrombolytic therapy.
Embolism
;
Embolism, Paradoxical
;
Foramen Ovale, Patent
;
Humans
;
Infarction
;
Kidney Diseases
;
Pulmonary Embolism
;
Renal Artery
;
Stroke
;
Thrombolytic Therapy
;
Thrombosis
;
Venous Thrombosis
10.Significance of Resting Heart Rate in Chronic Heart Failure: Data from Cardiac Insufficiency of Various Origin in Jeonbuk (CION-J) Registry.
Kyeong Ho YUN ; Sun Hwa LEE ; Sung Hee JOHN ; Jum Suk KO ; Sang Jae RHEE ; Nam Jin YOO ; Nam Ho KIM ; Jay Young RHEW ; Seok Kyu OH ; Won Ho KIM ; Jin Won JEONG
Journal of the Korean Society of Hypertension 2012;18(1):38-45
BACKGROUND: Chronic heart failure (HF) is a leading cause of morbidity and mortality in industrialized countries. Raised resting heart rate (HR) is a marker of cardiovascular risk in general population, as well as in patients with hypertension and coronary artery disease. We studied the association between HR and cardiovascular events in patients with Cardiac Insufficiency of Various Origin in Jeonbuk (CION-J) registry. METHODS: CION-J registry was a multicenter, prospective database for chronic HF. From January 2010 to December 2010, 356 HF patients who clinically stabilized at least 2 weeks were analyzed. According to resting HR, the patients divided into the tertile (lower tertile < 70/min, n = 129; middle tertile 70-80/min, n = 114; upper tertile > 80/min, n = 113). Clinical outcomes during 6-month period were compared by resting HR. RESULTS: Patients with upper tertile revealed higher New York Heart Association (NYHA) class than in those with lower tertile. From the lower to the upper tertile, the incidence of composite events of death, non-fatal myocardial infarction, ischemic stroke, and hospitalization for HF were increased(3.1%, 4.4%, 16.8%, respectively; p < 0.001). Patients with upper tertile had a higher predictive value for the incidence of death (hazard ratio, 5.8; p = 0.036) and hospitalization for HF (hazard ratio, 6.4; p < 0.001) than in those with middle and lower tertile. In multivariate analysis, NYHA class III/IV, resting HR > 80/min, and ejection fraction < 35% were independent predictors of adverse events. CONCLUSIONS: High resting HR (> 80/min) is a prognostic factor in chronic HF. Optimal treatment to reduce HR should be emphasized to improve prognosis of HF.
Coronary Artery Disease
;
Developed Countries
;
Heart
;
Heart Failure
;
Heart Rate
;
Hospitalization
;
Humans
;
Hypertension
;
Incidence
;
Multivariate Analysis
;
Myocardial Infarction
;
New York
;
Prognosis
;
Prospective Studies
;
Stroke

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