조원경 교수

BACKGROUND: Obesity and type 2 diabetes mellitus are world-wide health problems, and lack of understanding of their linking mechanism is one reason for limited treatment options. We determined if genetic deletion of vimentin, a type 3 intermediate filament, affects obesity and type 2 diabetes mellitus. METHODS: We fed vimentin-null (Vim-/-) mice and wild-type mice a high-fat diet (HFD) for 10 weeks and measured weight change, adiposity, blood lipids, and glucose. We performed intraperitoneal glu

Delineating the mechanisms that drive hepatic injury and hepatocellular carcinoma (HCC) progression is critical for development of novel treatments for recurrent and advanced HCC but also for the development of diagnostic and preventive strategies. Heat shock protein 70 (HSP70) acts in concert with several cochaperones and nucleotide exchange factors and plays an essential role in protein quality control that increases survival by protecting cells against environmental stressors. Specifically, t

AIM: The link between periodontitis and intestinal dysbiosis, two factors that contribute to atherosclerosis, has not been clearly defined. We investigated the integrative effects of oral infection with Porphyromonas gingivalis (PG), the major pathogen for periodontitis, on intestinal microbiota and atherosclerosis. MATERIALS AND METHODS: CFUs of live PG into the oral cavity of each mouse using a feeding needle five times a week for 3 weeks. Atherosclerotic lesions of the aortae were measured, a

Studies suggest that Hsf4 expression correlates with its role in cell growth and differentiation. However, the role of Hsf4 in tumorigenesis in vivo remains unexplored. In this article, we provide evidence that absence of the Hsf4 gene suppresses evolution of spontaneous tumors arising in p53- or Arf-deficient mice. Furthermore, deletion of hsf4 alters the tumor spectrum by significantly inhibiting development of lymphomas that are normally observed in the majority of mice lacking p53 or Arf tum

Atherosclerosis, the major pathology of cardiovascular disease, is caused by multiple factors involving psychological stress. Corticotropin-releasing hormone (CRH), which is released by neurosecretory cells in the hypothalamus, peripheral nerve terminals and epithelial cells, regulates various stress-related responses. Our current study aimed to verify the role of CRH in macrophage foam cell formation, the initial critical stage of atherosclerosis. Our quantitative real-time reverse transcriptas

Vimentin is a type III intermediate filament protein expressed in cells of mesenchymal origin. Vimentin has been thought to function mainly as a structural protein and roles of vimentin in other cellular processes have not been extensively studied. Our current study aims to reveal functions of vimentin in macrophage foam cell formation, the critical stage of atherosclerosis. We demonstrated that vimentin null ( Vim –/ – ) mouse peritoneal macrophages take up less oxidized LDL (oxLDL) than viment

Adipogenesis is a crucial cellular process that contributes to the expansion of adipose tissue in obesity. Shockwaves are mechanical stimuli that transmit signals to cause biological responses. The purpose of this study is to evaluate the effects of shockwaves on adipogenesis. We treated 3T3L-1 cells and human primary preadipocytes for differentiation with or without shockwaves. Western blots and quantitative real-time reverse transcriptase PCR (qRT-PCR) for adipocyte markers including peroxisom

Purpose: To examine the association of insulin-like growth factor-1 (IGF-1) and binding protein-3 (IGFBP-3) with metabolic parameters of childhood obesity and assess their relationship with the prevalence of metabolic syndrome (MetS) in childrenMethods: This was a cross-sectional study of a total 307 children who are subcategorized into three groups according to body mass index (BMI) percentile for age and gender. (Subjects included 207 normoweight, 36 overweight, and 64 obese children). Auxolog

Abstract Introduction: The clinical course of Graves’ disease (GD) treated with anti-thyroid drug (ATD) treatment were reviewed with the aim of establishing criteria able to predict intractable GD. Methods: The clinical course of 116 patients with GD who agreed to participate in this study between March 2009 and August 2019 in the pediatric endocrine clinic at Seoul St. Mary’s and St. Vincent’s Hospitals were reviewed. We defined an intractable as hyperthyroidism persistent over 2 years of ATD o

Abstract Disclosure: C. won-kyoung: None. B. Eunha: None. S. Sim: None. S. Park: None. S. Kim: None. S. Kim: None. M. Ahn: None. S. Kim: None. K. Cho: None. K. Han: None. M. Jung: None. B. Suh: None. OBJECTIVE To explore the incidence of emergency hospitalization among young-onset diabetes using a nationwide registry database. RESEARCH DESIGN AND METHODS Based on the Korean National Health Insurance Service-National Sample Cohort database from 2006 to 2019, data were collected for patients aged