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Kyu-Jung Ahn

Kyung Hee University · Medicine

About the Lab

Professor Kyu-Jung Ahn's research lab focuses on metabolic diseases, particularly type 2 diabetes and its complications, with an emphasis on understanding the pathophysiology, identifying biomarkers, and evaluating therapeutic interventions. The lab investigates the role of nutritional supplements like taurine in improving glucose and lipid metabolism, and conducts large-scale clinical studies to assess the economic and clinical burden of diabetes-related complications in the Korean population. Their work also explores cardiovascular risk markers such as the apolipoprotein B/A1 ratio and evaluates combination therapies for optimal lipid management in diabetic patients. The lab is actively involved in prospective cohort studies, including the Korean National Diabetes Program (KNDP) and the Korean Diabetes Prevention Study, to establish evidence-based strategies for diabetes prevention and management.

type 2 diabetesdiabetic complicationsmetabolic syndromeclinical epidemiologydiabetes prevention

Research Overview

Papers
39
Total Citations
280
Papers (5y)
10
Primary Field
Medicine

Research Output Trend

Figures are computed from collected data and may differ slightly.

Publications per year (5y)
10total
2017
2019
2021
2022
2024
Citations per year (5y)
78total
20172019202120222024

Selected Papers

15
1
Article|61 citations·2012
Taurine ameliorates hyperglycemia and dyslipidemia by reducing insulin resistance and leptin level in Otsuka Long-Evans Tokushima fatty (OLETF) rats with long-term diabetes
김경수, Da Hee Oh, 김정연, Bong Gn Lee, Jeong Soon You, 장경자, 정현주, Myung Chul Yoo, 양형인, 강자헌, 황유철, 안규정

This study aimed to determine whether taurine supplementation improves metabolic disturbances and diabetic complications in an animal model for type 2diabetes. We investigated whether taurine has therapeutic effects on glucose metabolism, lipid metabolism,and diabetic complications in Otsuka Long-Evans Tokushima fatty (OLETF) rats with long-term duration of diabetes. Fourteen 50-week-old OLETF rats with chronic diabetes were fed a diet supplemented with taurine (2%) or a non-supplemented control

2
Article|39 citations·2012
Direct Medical Costs for Patients with Type 2 Diabetes and Related Complications: A Prospective Cohort Study Based on the Korean National Diabetes Program
김태호, 전기홍, Hae Jin Kim, Seung Jin Han, 김대중, Jiyeong Kwak, 김영설, 우정택, 박용수, 남문석, 백세현, 안규정
Journal of Korean Medical Science

We analyzed the direct medical costs for Korean patients with type 2 diabetes according to the type of complications and the number of microvascular complications. We analyzed costs for type 2 diabetes and associated complications in 3,125 patients. These data were obtained from the Korean National Diabetes Program (KNDP), a large, ongoing,prospective cohort study that began in 2005. The cost data were prospectively collected,using an electronic database, for the KNDP cohort at six hospitals. Th

3
Article|28 citations·2012
Serum Bisphenol A Concentration in Postmenopausal Women with Osteoporosis
Dong Hyun Kim, Chi Hyuk Oh, Yoo-Chul Hwang, In‐Kyung Jeong, Kyu Jeong Ahn, Ho-Yeon Chung, Jae-Suk Chang
SJR Q2Journal of Bone Metabolism

There was no statistical significance between serum BPA concentration and clinical variables related to bone metabolism. To clarify the effect of BPA on bone metabolism, further large scaled and high risk group investigation may be needed.

Health, Toxicology and MutagenesisEnvironmental Science
4
Article|22 citations·2011
Prevalence of Chronic Complications in Korean Patients with Type 2 Diabetes Mellitus Based on the Korean National Diabetes Program
이상열, 전숙, 권미광, 박이병, 안규정, 김인주, 김성훈, 이형우, 고경수, 김두만, 백세현, 이관우
Diabetes and Metabolism Journal

Background: The Korean National Diabetes Program (KNDP) cohort study is performing an ongoing large-scale prospective multicenter investigation to discover the pathogenesis of type 2 diabetes in Korean patients. This study was performed to examine the prevalence of chronic complications in patients with type 2 diabetes among those registered in the KNDP cohort within the past 4 years. Methods: This study was performed between June 2006 and September 2009 at 13 university hospitals and included 4

5
Article|18 citations·2019
Comparison of the Efficacy of Rosuvastatin Monotherapy 20 mg with Rosuvastatin 5 mg and Ezetimibe 10 mg Combination Therapy on Lipid Parameters in Patients with Type 2 Diabetes Mellitus
황유철, 전지은, 정인경, 안규정, 정호연
Diabetes and Metabolism Journal

Background: The apolipoprotein B/A1 (apoB/A1) ratio is a stronger predictor of future cardiovascular disease than is the level ofconventional lipids. Statin and ezetimibe combination therapy have shown additional cardioprotective effects over statin monotherapy. Methods: This was a single-center, randomized, open-label, active-controlled study in Korea. A total of 36 patients with type 2 diabetesmellitus were randomized to either rosuvastatin monotherapy (20 mg/day, n=20) or rosuvastatin/ezetimi

6
Article|17 citations·2019
Hospital-Based Korean Diabetes Prevention Study: A Prospective, Multi-Center, Randomized, Open-Label Controlled Study
이상열, 전숙, 안규정, 우정택, the Korean Diabetes Prevention Study Investigators
Diabetes and Metabolism Journal

Background: The prevalence of diabetes mellitus (DM) continues to increase, and the disease burden is the highest of any medical condition in Korea. However, large-scale clinical studies have not yet conducted to establish the basis for diabetes prevention in Korea. Methods: The hospital-based Korean Diabetes Prevention Study (H-KDPS) is a prospective, multi-center, randomized, open-label controlled study conducted at university hospitals for the purpose of gathering data to help in efforts to p

7
Article|17 citations·2024
Combination of low- or moderate-intensity statin and ezetimibe vs. high-intensity statin monotherapy on primary prevention of cardiovascular disease and all-cause death: a propensity-matched nationwide cohort study
Ji Eun Jun, In‐Kyung Jeong, Kyu Jeong Ahn, Ho Yeon Chung, You‐Cheol Hwang
SJR Q1European Journal of Preventive CardiologyOA

AIMS: This study aims to compare the preventive effect of low- or moderate-statin with ezetimibe combination therapy and high-intensity statin monotherapy on cardiovascular disease (CVD) and all-cause death in a real-world setting. METHODS AND RESULTS: Using the Korean National Health Insurance Service datasets, two cohorts comparing high-intensity statin monotherapy with low- or moderate-intensity statin and ezetimibe combination were constructed by 1:1 propensity score matching procedure. Prim

SurgeryMedicine
8
Article|13 citations·2011
Comparison of the Efficacy of Glimepiride, Metformin, and Rosiglitazone Monotherapy in Korean Drug-Naïve Type 2 Diabetic Patients: The Practical Evidence of Antidiabetic Monotherapy Study
윤건호, 신정아, 권혁상, 이승환, 민경완, 안유배, 유순집, 안규정, 박성우, 이관우, 성연아, 박태선
Diabetes and Metabolism Journal

Background: Although many anti-diabetic drugs have been used to control hyperglycemia for decades, the efficacy of commonly-used oral glucose-lowering agents in Korean type 2 diabetic patients has yet to be clearly demonstrated. Methods: We evaluated the efficacy of glimepiride, metformin, and rosiglitazone as initial treatment for drug-naïve type 2 diabetes mellitus patients in a 48-week, double-blind, randomized controlled study that included 349 Korean patients. Our primary goal was to determ

9
Article|13 citations·2017
Addition of Ipragliflozin to Metformin Treatment in Korean Patients with Type 2 Diabetes Mellitus: Subgroup Analysis of a Phase 3 Trial
민경완, 구본정, 이지현, 김민선, 안규정, 이문규, Satoshi Kokubo, Satoshi Yoshida, 조현지, 차봉수
Diabetes and Metabolism Journal

Background: This is a subgroup analysis of Korean patients from a phase 3 clinical trial investigating the efficacy and safety of ipragliflozin in patients with type 2 diabetes mellitus inadequately controlled with metformin. Methods: This multicenter, placebo-controlled, double-blind, parallel-group study was carried out between November 2011 and January 2013. Patients entered a 2-week placebo pretreatment period, followed by a 24-week treatment period with either ipragliflozin (50 mg/day) or p

10
Article|8 citations·2022
Trends in the Prevalence of Obesity and Its Phenotypes Based on the Korea National Health and Nutrition Examination Survey from 2007 to 2017 in Korea
진상욱, 황유철, 안홍엽, 전지은, 정인경, 안규정, 정호연
Diabetes and Metabolism Journal

This study used data from the Korea National Health and Nutrition Examination Survey IV–VII from 2007 to identify the prevalence of obesity and its phenotypes (metabolically unhealthy obesity [MUO] and metabolically healthy obesity [MHO]) and their secular changes. The prevalence of obesity in Korea increased with significant secular changes observed (β=0.326, <i>P</i> trend <0.01) between 2007 and 2017, and especially in men (β=0.682, <i>P</i> trend <0.001) but not in women. The changes in the

11
Article|6 citations·2009
Upregulation of Heme Oxygenase-1 as an Adaptive Mechanism against Acrolein in RAW 264.7 Macrophages
Nam Ju Lee, 이승은, 박증석, 안현종, 안규정, 박용식

Acrolein, a known toxin in cigarette smoke, is the most abundant electrophilic α, β-unsaturated aldehyde to which humans are exposed in a variety of environmental pollutants, and is also product of lipid peroxidation. Increased unsaturated aldehyde levels and reduced antioxidant status plays a major role in the pathogenesis of various diseases such as diabetes, Alzheimer’s and atherosclerosis. The findings reported here show that low concentrations of acrolein induce heme oxygenase-1 (HO-1) expr

12
Article|6 citations·2007
Differences in Insulin Sensitivity and Secretory Capacity Based on OGTT in Subjects with Impaired Glucose Regulation
이상열, 권미광, 박병조, 천숙, 정인경, 오승준, 안규정, 정호연, 김성운, 김진우, 김영설, 우정택

Background : The expression of c-FLIP (cellular Fas-associated death domain-like interleukin-1 β-converting enzyme (FLICE)-inhibitory protein), which is a member of the family of inhibitors of apoptosis, has been associated with tumor development and progression. The aim of this study was to evaluate the expression of c-FLIP in gastric cancer and its correlation with tumor cell proliferation, apoptosis and the clinicopathologic features. Methods : Immunohistochemical staining with anti-c-FLIP an

13
Article|5 citations·2013
Safety and Efficacy of Modern Insulin Analogues
류혜진, 박근용, 박강서, 안규정, 민경완, 박정현, 장상아, 차봉수, 김동준, 김용성, 오태근, 전숙
Diabetes and Metabolism Journal

Background: A1chieve was a noninterventional study evaluating the clinical safety and efficacy of biphasic insulin aspart 30,insulin detemir, and insulin aspart. Methods: Korean type 2 diabetes patients who have not been treated with the study insulin or have started it within 4 weeks before enrollment were eligible for the study. The patient selection and the choice of regimen were at the discretion of the physician. The safety and efficacy information was collected from the subjects at baseli

14
Article|4 citations·2015
The Role of Glucagon-Like Peptide-1 Receptor Agonists in Type 2 Diabetes: Understanding How Data Can Inform Clinical Practice in Korea
오승준, 전숙, 안규정, 정인경, 김병준, 강준구
Diabetes and Metabolism Journal

Glucagon-like peptide-1 receptor agonists (GLP-1RAs) reduce glycosylated hemoglobin (HbA1c, 0.5% to 1.0%), and are associated with moderate weight loss and a relatively low risk of hypoglycemia. There are differences between Asian and non-Asian populations. We reviewed available data on GLP-1RAs, focusing on Korean patients, to better understand their risk/benefit profile and help inform local clinical practice. Control of postprandial hyperglycemia is important in Asians in whom the prevalence

15
Article|4 citations·2010
The Changes in Early Phase Insulin Secretion in Newly Diagnosed, Drug Naive Korean Prediabetes Subjects
이상열, 김주영, 전숙, 황유철, 정인경, 오승준, 안규정, 정호연, 우정택, 김성운, 김진우, 김영설
Diabetes and Metabolism Journal

Background: There have been no systematic observations regarding changes in early phase insulin secretion among Korean prediabetes and early stage type 2 diabetes mellitus (T2DM) patients. Methods: We conducted 75-g oral glucose tolerance tests (OGTT) in 873 subjects with suspected abnormal glucose tolerance. All subjects were diagnosed as having normal glucose tolerance (NGT), prediabetes (preDM), or T2DM according to the OGTT results and the insulin secretory and insulin resistance indices of

Research Areas

Endocrinology, Diabetes and MetabolismHealth, Toxicology and MutagenesisSurgeryEpidemiologyCardiology and Cardiovascular MedicineBehavioral Neuroscience

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