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In Kyung Jeong  (Jeong IK) 5 Articles
Drug Regimen
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Efficacy and Safety of Enavogliflozin versus Dapagliflozin as Add-on to Metformin in Patients with Type 2 Diabetes Mellitus: A 24-Week, Double-Blind, Randomized Trial
Kyung Ah Han, Yong Hyun Kim, Doo Man Kim, Byung Wan Lee, Suk Chon, Tae Seo Sohn, In Kyung Jeong, Eun-Gyoung Hong, Jang Won Son, Jae Jin Nah, Hwa Rang Song, Seong In Cho, Seung-Ah Cho, Kun Ho Yoon
Diabetes Metab J. 2023;47(6):796-807.   Published online February 9, 2023
DOI: https://doi.org/10.4093/dmj.2022.0315
  • 41,846 View
  • 638 Download
  • 7 Web of Science
  • 8 Crossref
AbstractAbstract PDFSupplementary MaterialPubReader   ePub   
Background
Enavogliflozin is a novel sodium-glucose cotransporter-2 inhibitor currently under clinical development. This study evaluated the efficacy and safety of enavogliflozin as an add-on to metformin in Korean patients with type 2 diabetes mellitus (T2DM) against dapagliflozin.
Methods
In this multicenter, double-blind, randomized, phase 3 study, 200 patients were randomized to receive enavogliflozin 0.3 mg/day (n=101) or dapagliflozin 10 mg/day (n=99) in addition to ongoing metformin therapy for 24 weeks. The primary objective of the study was to prove the non-inferiority of enavogliflozin to dapagliflozin in glycosylated hemoglobin (HbA1c) change at week 24 (non-inferiority margin of 0.35%) (Clinical trial registration number: NCT04634500).
Results
Adjusted mean change of HbA1c at week 24 was –0.80% with enavogliflozin and –0.75% with dapagliflozin (difference, –0.04%; 95% confidence interval, –0.21% to 0.12%). Percentages of patients achieving HbA1c <7.0% were 61% and 62%, respectively. Adjusted mean change of fasting plasma glucose at week 24 was –32.53 and –29.14 mg/dL. An increase in urine glucose-creatinine ratio (60.48 vs. 44.94, P<0.0001) and decrease in homeostasis model assessment of insulin resistance (–1.85 vs. –1.31, P=0.0041) were significantly greater with enavogliflozin than dapagliflozin at week 24. Beneficial effects of enavogliflozin on body weight (–3.77 kg vs. –3.58 kg) and blood pressure (systolic/diastolic, –5.93/–5.41 mm Hg vs. –6.57/–4.26 mm Hg) were comparable with those of dapagliflozin, and both drugs were safe and well-tolerated.
Conclusion
Enavogliflozin added to metformin significantly improved glycemic control in patients with T2DM and was non-inferior to dapagliflozin 10 mg, suggesting enavogliflozin as a viable treatment option for patients with inadequate glycemic control on metformin alone.

Citations

Citations to this article as recorded by  
  • Efficacy and safety of enavogliflozin vs. dapagliflozin as add-on therapy in patients with type 2 diabetes mellitus based on renal function: a pooled analysis of two randomized controlled trials
    Young Sang Lyu, Sangmo Hong, Si Eun Lee, Bo Young Cho, Cheol-Young Park
    Cardiovascular Diabetology.2024;[Epub]     CrossRef
  • A 52‐week efficacy and safety study of enavogliflozin versus dapagliflozin as an add‐on to metformin in patients with type 2 diabetes mellitus: ENHANCE‐M extension study
    Tae Seo Sohn, Kyung‐Ah Han, Yonghyun Kim, Byung‐Wan Lee, Suk Chon, In‐Kyung Jeong, Eun‐Gyoung Hong, Jang Won Son, JaeJin Na, Jae Min Cho, Seong In Cho, Wan Huh, Kun‐Ho Yoon
    Diabetes, Obesity and Metabolism.2024; 26(6): 2248.     CrossRef
  • The effect of renal function on the pharmacokinetics and pharmacodynamics of enavogliflozin, a potent and selective sodium‐glucose cotransporter‐2 inhibitor, in type 2 diabetes
    Sae Im Jeong, Mu Seong Ban, Jun‐Gi Hwang, Min‐Kyu Park, Soo Lim, Sejoong Kim, Soon Kil Kwon, Yoonjin Kim, Jae Min Cho, Jae Jin Na, Wan Huh, Jae‐Yong Chung
    Diabetes, Obesity and Metabolism.2024; 26(7): 2588.     CrossRef
  • Long‐term efficacy and safety of enavogliflozin in Korean people with type 2 diabetes: A 52‐week extension of a Phase 3 randomized controlled trial
    Soo Heon Kwak, Kyung Ah Han, Eun Sook Kim, Sung Hee Choi, Jong Chul Won, Jae Myung Yu, Seungjoon Oh, Hye Jin Yoo, Chong Hwa Kim, Kyung‐Soo Kim, SungWan Chun, Yong Hyun Kim, Seung Ah Cho, Da Hye Kim, Kyong Soo Park
    Diabetes, Obesity and Metabolism.2024; 26(10): 4203.     CrossRef
  • Role of novel sodium glucose co-transporter-2 inhibitor enavogliflozin in type-2 diabetes: A systematic review and meta-analysis
    Deep Dutta, B.G. Harish, Beatrice Anne, Lakshmi Nagendra
    Diabetes & Metabolic Syndrome: Clinical Research & Reviews.2023; 17(8): 102816.     CrossRef
  • Characteristics of the Latest Therapeutic Agent for Diabetes
    Nuri Yun
    The Journal of Korean Diabetes.2023; 24(3): 148.     CrossRef
  • Prospects of using sodium-glucose co-transporter-2 (SGLT-2) inhibitors in patients with metabolic-associated fatty liver disease (MAFLD)
    Iryna Kostitska, Nadia Protas, Liliia Petrovska
    Diabetes Obesity Metabolic Syndrome.2023; (5): 8.     CrossRef
  • Navigating the Future of Diabetes Treatment with New Drugs: Focusing on the Possibilities and Prospects of Enavogliflozin
    Sang Youl Rhee
    Diabetes & Metabolism Journal.2023; 47(6): 769.     CrossRef
Drug/Regimen
Comparison of Efficacy of Glimepiride, Alogliptin, and Alogliptin-Pioglitazone as the Initial Periods of Therapy in Patients with Poorly Controlled Type 2 Diabetes Mellitus: An Open-Label, Multicenter, Randomized, Controlled Study
Hae Jin Kim, In Kyung Jeong, Kyu Yeon Hur, Soo-Kyung Kim, Jung Hyun Noh, Sung Wan Chun, Eun Seok Kang, Eun-Jung Rhee, Sung Hee Choi
Diabetes Metab J. 2022;46(5):689-700.   Published online March 17, 2022
DOI: https://doi.org/10.4093/dmj.2021.0183
  • 6,664 View
  • 391 Download
  • 2 Web of Science
  • 2 Crossref
AbstractAbstract PDFSupplementary MaterialPubReader   ePub   
Background
The choice of an optimal oral hypoglycemic agent in the initial treatment periods for type 2 diabetes mellitus (T2DM) patients remains difficult and deliberate. We compared the efficacy and safety of glimepiride (GLIM), alogliptin (ALO), and alogliptin-pioglitazone (ALO-PIO) in poorly controlled T2DM patients with drug-naïve or metformin failure.
Methods
In this three-arm, multicenter, open-label, randomized, controlled trial, poorly controlled T2DM patients were randomized to receive GLIM (n=35), ALO (n=31), or ALO-PIO (n=33) therapy for 24 weeks. The primary endpoint was change in the mean glycosylated hemoglobin (HbA1c) levels at week 24 from baseline. Secondary endpoints were changes in HbA1c level at week 12 from baseline, fasting plasma glucose (FPG) levels, lipid profiles at weeks 12 and 24, and parameters of glycemic variability, assessed by continuous glucose monitoring for 24 weeks.
Results
At weeks 12 and 24, the ALO-PIO group showed significant reduction in HbA1c levels compared to the ALO group (–0.96%±0.17% vs. –0.37%±0.17% at week 12; –1.13%±0.19% vs. –0.18%±0.2% at week 24). The ALO-PIO therapy caused greater reduction in FPG levels and significant increase in high-density lipoprotein cholesterol levels at weeks 12 and 24 than the ALO therapy. Compared to low-dose GLIM therapy, ALO-PIO therapy showed greater improvement in glycemic variability. The adverse events were similar among the three arms.
Conclusion
ALO-PIO combination therapy during the early period exerts better glycemic control than ALO monotherapy and excellency in glycemic variability than low-dose sulfonylurea therapy in uncontrolled, drug-naïve or metformin failed T2DM patients.

Citations

Citations to this article as recorded by  
  • A Comprehensive Review on Weight Loss Associated with Anti-Diabetic Medications
    Fatma Haddad, Ghadeer Dokmak, Maryam Bader, Rafik Karaman
    Life.2023; 13(4): 1012.     CrossRef
  • Role of Dipeptidyl Peptidase 4 Inhibitors in Antidiabetic Treatment
    Ruili Yin, Yongsong Xu, Xin Wang, Longyan Yang, Dong Zhao
    Molecules.2022; 27(10): 3055.     CrossRef
Clinical Diabetes & Therapeutics
Efficacy and Safety of Voglibose Plus Metformin in Patients with Type 2 Diabetes Mellitus: A Randomized Controlled Trial
Tae Jung Oh, Jae Myung Yu, Kyung Wan Min, Hyun Shik Son, Moon Kyu Lee, Kun Ho Yoon, Young Duk Song, Joong Yeol Park, In Kyung Jeong, Bong Soo Cha, Yong Seong Kim, Sei Hyun Baik, In Joo Kim, Doo Man Kim, Sung Rae Kim, Kwan Woo Lee, Jeong Hyung Park, In Kyu Lee, Tae Sun Park, Sung Hee Choi, Sung Woo Park
Diabetes Metab J. 2019;43(3):276-286.   Published online December 7, 2018
DOI: https://doi.org/10.4093/dmj.2018.0051
  • 7,922 View
  • 110 Download
  • 15 Web of Science
  • 14 Crossref
AbstractAbstract PDFPubReader   
Background

Combination of metformin to reduce the fasting plasma glucose level and an α-glucosidase inhibitor to decrease the postprandial glucose level is expected to generate a complementary effect. We compared the efficacy and safety of a fixed-dose combination of voglibose plus metformin (vogmet) with metformin monotherapy in drug-naïve newly-diagnosed type 2 diabetes mellitus.

Methods

A total of 187 eligible patients aged 20 to 70 years, with a glycosylated hemoglobin (HbA1c) level of 7.0% to 11.0%, were randomized into either vogmet or metformin treatments for 24 weeks. A change in the HbA1c level from baseline was measured at week 24.

Results

The reduction in the levels of HbA1c was −1.62%±0.07% in the vogmet group and −1.31%±0.07% in the metformin group (P=0.003), and significantly more vogmet-treated patients achieved the target HbA1c levels of <6.5% (P=0.002) or <7% (P=0.039). Glycemic variability was also significantly improved with vogmet treatment, estimated by M-values (P=0.004). Gastrointestinal adverse events and hypoglycemia (%) were numerically lower in the vogmet-treated group. Moreover, a significant weight loss was observed with vogmet treatment compared with metformin (−1.63 kg vs. −0.86 kg, P=0.039).

Conclusion

Vogmet is a safe antihyperglycemic agent that controls blood glucose level effectively, yields weight loss, and is superior to metformin in terms of various key glycemic parameters without increasing the risk of hypoglycemia.

Citations

Citations to this article as recorded by  
  • Phytochemical analysis and antihyperglycemic activity of Castilleja arvensis
    Mónica Aideé Díaz-Román, Juan José Acevedo-Fernández, Gabriela Ávila-Villarreal, Elizabeth Negrete-León, A. Berenice Aguilar-Guadarrama
    Fitoterapia.2024; 174: 105839.     CrossRef
  • Efficacy and Safety of DPP-4 Inhibitors and Metformin Combinations in Type 2 Diabetes: A Systematic Literature Review and Network Meta-Analysis
    Rongping Chen, Jing Li, Danqi Chen, Weiheng Wen, Susu Zhang, Jitong Li, Yuting Ruan, Zhen Zhang, Jia Sun, Hong Chen
    Diabetes, Metabolic Syndrome and Obesity.2024; Volume 17: 2471.     CrossRef
  • Metformin-Associated Gastrointestinal Adverse Events Are Reduced by Probiotics: A Meta-Analysis
    Izabela Szymczak-Pajor, Józef Drzewoski, Sylwia Wenclewska, Agnieszka Śliwińska
    Pharmaceuticals.2024; 17(7): 898.     CrossRef
  • YAP/TAZ axis was involved in the effects of metformin on breast cancer
    Yu Xu, Hongke Cai, Yuanfeng Xiong, Li Tang, Longjiang Li, Li Zhang, Yi Shen, Yongqiang Yang, Ling Lin, Jiayi Huang
    Journal of Chemotherapy.2023; 35(7): 627.     CrossRef
  • Diabetes Remission
    Ashok Kumar, Shubha Laxmi Margekar, Ravi Kumar
    Indian Journal of Medical Specialities.2023; 14(1): 3.     CrossRef
  • Analysis of Reports Sent to the Portuguese Pharmacovigilance System and Published Literature Regarding the Safety of Metformin in the Elderly
    Beatriz Esteves, Cristina Monteiro, Ana Paula Coelho Duarte
    Healthcare.2023; 11(15): 2197.     CrossRef
  • Rapid prediction method of α-Glycosidase inhibitory activity of Coreopsis tinctoria extract from different habitats by near infrared spectroscopy
    Xiaogang He, Xiang Han, Jiaping Yu, Yulong Feng, Ganghui Chu
    Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy.2022; 268: 120601.     CrossRef
  • Insulin autoimmune syndrome in patients with type 2 diabetes: A report of two cases
    Y. Shin, T.J. Oh, S.H. Choi, H.C. Jang
    Diabetes & Metabolism.2021; 47(1): 101115.     CrossRef
  • Efficacy and Safety of Treatment with Quadruple Oral Hypoglycemic Agents in Uncontrolled Type 2 Diabetes Mellitus: A Multi-Center, Retrospective, Observational Study
    Jun Sung Moon, Sunghwan Suh, Sang Soo Kim, Heung Yong Jin, Jeong Mi Kim, Min Hee Jang, Kyung Ae Lee, Ju Hyung Lee, Seung Min Chung, Young Sang Lyu, Jin Hwa Kim, Sang Yong Kim, Jung Eun Jang, Tae Nyun Kim, Sung Woo Kim, Eonju Jeon, Nan Hee Cho, Mi-Kyung Ki
    Diabetes & Metabolism Journal.2021; 45(5): 675.     CrossRef
  • Quantifying Remission Probability in Type 2 Diabetes Mellitus
    Sanjay Kalra, Ganapathi Bantwal, Nitin Kapoor, Rakesh Sahay, Saptarshi Bhattacharya, Beatrice Anne, Raju A Gopal, Sunil Kota, Ashok Kumar, Ameya Joshi, Debmalya Sanyal, Mangesh Tiwaskar, Ashok Kumar Das
    Clinics and Practice.2021; 11(4): 850.     CrossRef
  • The effect of voglibose on metabolic profiles in patients with type 2 diabetes mellitus: A systematic review and meta-analysis of clinical trials
    Peyman Nowrouzi-Sohrabi, Reza Tabrizi, Shahla Rezaei, Fatemeh Jafari, Kamran Hessami, Mehdi Abedi, Mohammad Jalali, Pedram Keshavarzi, Saeed Shahabi, Ali Asghar Kolahi, Kristin Carson-Chahhoud, Amirhossein Sahebkar, Saeid Safiri
    Pharmacological Research.2020; 159: 104988.     CrossRef
  • Role of Intestinal Microbiota in Metabolism of Voglibose In Vitro and In Vivo
    Mahesh Raj Nepal, Mi Jeong Kang, Geon Ho Kim, Dong Ho Cha, Ju-Hyun Kim, Tae Cheon Jeong
    Diabetes & Metabolism Journal.2020; 44(6): 908.     CrossRef
  • Response: Efficacy and Safety of Voglibose Plus Metformin in Patients with Type 2 Diabetes Mellitus: A Randomized Controlled Trial (Diabetes metab J 2019;43;276-86)
    Tae Jung Oh, Sung Hee Choi
    Diabetes & Metabolism Journal.2019; 43(4): 547.     CrossRef
  • Letter: Efficacy and Safety of Voglibose Plus Metformin in Patients with Type 2 Diabetes Mellitus: A Randomized Controlled Trial (Diabetes Metab J 2019;43;276-86)
    Hannah Seok, Tae Seo Sohn
    Diabetes & Metabolism Journal.2019; 43(4): 545.     CrossRef
Epidemiology
Clinical Characteristics of People with Newly Diagnosed Type 2 Diabetes between 2015 and 2016: Difference by Age and Body Mass Index
Kyoung Hwa Ha, Cheol Young Park, In Kyung Jeong, Hyun Jin Kim, Sang-Yong Kim, Won Jun Kim, Ji Sung Yoon, In Joo Kim, Dae Jung Kim, Sungrae Kim
Diabetes Metab J. 2018;42(2):137-146.   Published online February 14, 2018
DOI: https://doi.org/10.4093/dmj.2018.42.2.137
  • 5,966 View
  • 87 Download
  • 13 Web of Science
  • 12 Crossref
AbstractAbstract PDFPubReader   
Background

We evaluated the clinical characteristics of insulin resistance and β-cell dysfunction in newly diagnosed, drug-naive people with type 2 diabetes by analyzing nationwide cross-sectional data.

Methods

We collected the clinical data of 912 participants with newly diagnosed diabetes from 83 primary care clinics and hospitals nationwide from 2015 to 2016. The presence of insulin resistance and β-cell dysfunction was defined as a homeostatic model assessment of insulin resistance (HOMA-IR) value ≥2.5 and fasting C-peptide levels <1.70 ng/mL, respectively.

Results

A total of 75.1% and 22.6% of participants had insulin resistance and β-cell dysfunction, respectively. The proportion of participants with insulin resistance but no β-cell dysfunction increased, and the proportion of participants with β-cell dysfunction but no insulin resistance decreased as body mass index (BMI) increased. People diagnosed with diabetes before 40 years of age had significantly higher HOMA-IR and BMI than those diagnosed over 65 years of age (HOMA-IR, 5.0 vs. 3.0; BMI, 28.7 kg/m2 vs. 25.1 kg/m2). However, the β-cell function indices were lower in people diagnosed before 40 years of age than in those diagnosed after 65 years of age (homeostatic model assessment of β-cell function, 39.3 vs. 64.9; insulinogenic index, 10.3 vs. 18.7; disposition index, 0.15 vs. 0.25).

Conclusion

We observed that the main pathogenic mechanism of type 2 diabetes is insulin resistance in participants with newly diagnosed type 2 diabetes. In addition, young adults with diabetes are more likely to have higher insulin resistance with obesity and have higher insulin secretory defect with severe hyperglycemia in the early period of diabetes than older populations.

Citations

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  • Comparison of β-Cell Function and Insulin Sensitivity Between Normal-Weight and Obese Chinese With Young-Onset Type 2 Diabetes
    Yingnan Fan, Elaine Chow, Cadmon K.P. Lim, Yong Hou, Sandra T.F. Tsoi, Baoqi Fan, Eric S.H. Lau, Alice P.S. Kong, Ronald C.W. Ma, Hongjiang Wu, Juliana C.N. Chan, Andrea O.Y. Luk
    Diabetes.2024; 73(6): 953.     CrossRef
  • A double‐blind, Randomized controlled trial on glucose‐lowering EFfects and safety of adding 0.25 or 0.5 mg lobeglitazone in type 2 diabetes patients with INadequate control on metformin and dipeptidyl peptidase‐4 inhibitor therapy: REFIND study
    Soree Ryang, Sang Soo Kim, Ji Cheol Bae, Ji Min Han, Su Kyoung Kwon, Young Il Kim, Il Seong Nam‐Goong, Eun Sook Kim, Mi‐kyung Kim, Chang Won Lee, Soyeon Yoo, Gwanpyo Koh, Min Jeong Kwon, Jeong Hyun Park, In Joo Kim
    Diabetes, Obesity and Metabolism.2022; 24(9): 1800.     CrossRef
  • Apparent Insulin Deficiency in an Adult African Population With New-Onset Type 2 Diabetes
    Davis Kibirige, Isaac Sekitoleko, Priscilla Balungi, William Lumu, Moffat J. Nyirenda
    Frontiers in Clinical Diabetes and Healthcare.2022;[Epub]     CrossRef
  • Rising Incidence of Diabetes in Young Adults in South Korea: A National Cohort Study
    Hyun Ho Choi, Giwoong Choi, Hojun Yoon, Kyoung Hwa Ha, Dae Jung Kim
    Diabetes & Metabolism Journal.2022; 46(5): 803.     CrossRef
  • A Real-World Study of Long-Term Safety and Efficacy of Lobeglitazone in Korean Patients with Type 2 Diabetes Mellitus
    Bo-Yeon Kim, Hyuk-Sang Kwon, Suk Kyeong Kim, Jung-Hyun Noh, Cheol-Young Park, Hyeong-Kyu Park, Kee-Ho Song, Jong Chul Won, Jae Myung Yu, Mi Young Lee, Jae Hyuk Lee, Soo Lim, Sung Wan Chun, In-Kyung Jeong, Choon Hee Chung, Seung Jin Han, Hee-Seok Kim, Ju-Y
    Diabetes & Metabolism Journal.2022; 46(6): 855.     CrossRef
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    Liyun Duan, De Jin, Xuedong An, Yuehong Zhang, Shenghui Zhao, Rongrong Zhou, Yingying Duan, Yuqing Zhang, Xinmin Liu, Fengmei Lian, Wen yi Kang
    Evidence-Based Complementary and Alternative Medicine.2021; 2021: 1.     CrossRef
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    Dita Maria Virginia, Mae Sri Hartati Wahyuningsih, Dwi Aris Agung Nugrahaningsih
    Asian Biomedicine.2021; 15(4): 161.     CrossRef
  • Efficacy and Safety of Pioglitazone versus Glimepiride after Metformin and Alogliptin Combination Therapy: A Randomized, Open-Label, Multicenter, Parallel-Controlled Study
    Jeong Mi Kim, Sang Soo Kim, Jong Ho Kim, Mi Kyung Kim, Tae Nyun Kim, Soon Hee Lee, Chang Won Lee, Ja Young Park, Eun Sook Kim, Kwang Jae Lee, Young Sik Choi, Duk Kyu Kim, In Joo Kim
    Diabetes & Metabolism Journal.2020; 44(1): 67.     CrossRef
  • Favorable Glycemic Control with Once-Daily Insulin Degludec/Insulin Aspart after Changing from Basal Insulin in Adults with Type 2 Diabetes
    Han Na Jang, Ye Seul Yang, Seong Ok Lee, Tae Jung Oh, Bo Kyung Koo, Hye Seung Jung
    Endocrinology and Metabolism.2019; 34(4): 382.     CrossRef
  • Insulin Resistance versus β-Cell Failure: Is It Changing in Koreans?
    Mi-kyung Kim
    Diabetes & Metabolism Journal.2018; 42(2): 128.     CrossRef
  • Response: Clinical Characteristics of People with Newly Diagnosed Type 2 Diabetes between 2015 and 2016: Difference by Age and Body Mass Index (Diabetes Metab J2018;42:137-46)
    Kyoung Hwa Ha, Dae Jung Kim, Sungrae Kim
    Diabetes & Metabolism Journal.2018; 42(3): 251.     CrossRef
  • Letter: Clinical Characteristics of People with Newly Diagnosed Type 2 Diabetes between 2015 and 2016: Difference by Age and Body Mass Index (Diabetes Metab J 2018;42:137-46)
    Ah Reum Khang
    Diabetes & Metabolism Journal.2018; 42(3): 249.     CrossRef
The Changes in Early Phase Insulin Secretion in Newly Diagnosed, Drug Naive Korean Prediabetes Subjects
Sang Youl Rhee, Joo Young Kim, Suk Chon, You Cheol Hwang, In Kyung Jeong, Seungjoon Oh, Kyu Jeung Ahn, Ho Yeon Chung, Jeong-taek Woo, Sung Woon Kim, Jin-Woo Kim, Young Seol Kim
Korean Diabetes J. 2010;34(3):157-165.   Published online June 30, 2010
DOI: https://doi.org/10.4093/kdj.2010.34.3.157
  • 4,949 View
  • 29 Download
  • 15 Crossref
AbstractAbstract PDFPubReader   
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 each subject were calculated. Additionally, we analyzed the changes in early phase insulin secretion according to changes in fasting (Glc0), post-prandial (Glc120) glucose and HbA1c (A1c) levels.

Results

As compared to subjects with NGT, the insulin secretory indices of the preDM and T2DM subjects progressively declined, and the insulin resistance indices were progressively aggravated. Early phase insulin secretion decreased rapidly according to the increments of Glc0, Glc120 and A1c, and these changes were most prominent in the NGT stage. Compared to the control group, the early phase insulin secretion levels of the preDM or T2DM subjects were less than 50% when Glc0 was over 100 mg/dL, Glc120 was over 145 mg/dL, and A1c was over 5.8%.

Conclusion

This study suggests that progressive beta cell dysfunction in Koreans may be initiated and rapidly aggravated during the period generally designated as 'normal.'

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    Nan Hee Kim, Nam H. Cho, Chang-Ho Yun, Seung Ku Lee, Dae Wui Yoon, Hyun Joo Cho, Jae Hee Ahn, Ji A. Seo, Sin Gon Kim, Kyung Mook Choi, Sei Hyun Baik, Dong Seop Choi, Chol Shin
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    C.‐H. Kim, H.‐K. Kim, E. H. Kim, S. J. Bae, J.‐Y. Park
    Diabetic Medicine.2013; 30(9): 1075.     CrossRef
  • Associations among Body Mass Index, Insulin Resistance, and Pancreatic β-Cell Function in Korean Patients with New-Onset Type 2 Diabetes
    Jin Ook Chung, Dong Hyeok Cho, Dong Jin Chung, Min Young Chung
    The Korean Journal of Internal Medicine.2012; 27(1): 66.     CrossRef
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    Y. Heianza, Y. Arase, K. Fujihara, H. Tsuji, K. Saito, S. D. Hsieh, S. Kodama, H. Shimano, N. Yamada, S. Hara, H. Sone
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    Sang Youl Rhee, Jeong-Taek Woo
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    Chul-Hee Kim
    Korean Diabetes Journal.2010; 34(3): 154.     CrossRef

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