Diabetes & Metabolism Journal

Hak Yeon Bae (Bae HY)

8 Articles

Association of Hemoglobin A1c with Cardiovascular Disease Risk Factors and Metabolic Syndrome in Nondiabetic Adults.: Jin Hwa Kim, So Ra Choi, Jae Rok Lee, Ji Hye Shin, Sang Jun Lee, Mi Ah Han, Jong Park, Hak Yeon Bae, Sang Yong Kim; Korean Diabetes J. 2008;32(5):435-444. Published online October 1, 2008; DOI: https://doi.org/10.4093/kdj.2008.32.5.435

2,919 View
33 Download
6 Crossref

BACKGROUND
Glycosylated hemoglobin (HbA1c) is a useful index of mean blood glucose concentrations over the preceding 2 to 3 months. Elevated HbA1c levels (> 7%) are associated with a higher incidence of microvascular and macrovascular complications in patients with diabetes mellitus. However, the relationship between HbA1c and cardiovascualr disease risk in nondiabetic adults has been unclear. The aim of this study is to estimate the association of HbA1c with cardiovascular disease risk factors and metabolic syndrome in nondiabetic adults. METHODS: The subjects of this study included 533 adults (180 males and 353 females) aged 20~70 years (mean age: 46.9 +/- 10.12 years) without previously diagnosed diabetes who lived in Kangyang country. We examined baseline HbA1c levels and cardiovascular risk factors. Metabolic syndrome was defined based on International Diabetes Federation guidelines. RESULTS: The prevalence of metabolic syndrome significantly increased as HbA1c increased. HbA1c revealed a significant correlation with age (r = 0.258, P < 0.001), BMI (r = 0.152, P < 0.001), waist circumference (r = 0.252, P < 0.001), fasting plasma glucose (r = 0.319, P < 0.001), systolic (r = 0.100, P = 0.021), diastolic (r = 0.115, P = 0.008) blood pressure, total cholesterol (r = 0.232, P < 0.001), triglyceride (r = 0.156, P < 0.001), LDL cholesterol (r = 0.216, P < 0.001), and HDL cholesterol (r = -0.167, P < 0.001). Multiple regression analysis showed that HbA1c had a association with age, fasting plasma glucose, and dyslipidemia. The receiver operating characterstics (ROC) curve analysis determined HbA1c of 5.35% to yield optimal sensitivity and specificity corresponding to the presence of metabolic syndrome. CONCLUSION: The HbA1c level is correlated with cardiovascular risk factors and prevalence of metabolic syndrome in nondiabetic adults.

Citations

Citations to this article as recorded by

Association of Glycated Proteins with Inflammatory Proteins and Periodontal Disease Parameters
Jeneen Panezai, Mohammad Altamash, Per-Erik Engstrӧm, Anders Larsson
Journal of Diabetes Research.2020; 2020: 1. CrossRef
The Impact of Health Behaviors of Male Workers without Diabetes on HbA1c
Ji-Yun Park, Keon-Yeop Kim, Su-Jin Lee
Journal of Health Informatics and Statistics.2018; 43(4): 344. CrossRef
Impact of initial glycosylated hemoglobin level on cardiovascular outcomes in prediabetic patients with ST-segment elevation myocardial infarction undergoing primary percutaneous coronary intervention
Donghun Shin, Jinhee Ahn, Kwang Soo Cha, Jin Sup Park, Jun-Hyok Oh, Hye-Won Lee, Ju-Yong Hong, Bo-Won Kim, Taek Jong Hong
Coronary Artery Disease.2016; 27(1): 40. CrossRef
HbA1c Levels Are Associated with Chronic Kidney Disease in a Non-Diabetic Adult Population: A Nationwide Survey (KNHANES 2011–2013)
Seok Hui Kang, Da Jung Jung, Eun Woo Choi, Kyu Hyang Cho, Jong Won Park, Jun Young Do, Sheng-Nan Lu
PLOS ONE.2015; 10(12): e0145827. CrossRef
Usefulness of Glycated Hemoglobin as Diagnostic Criteria for Metabolic Syndrome
Sang Hyun Park, Ji Sung Yoon, Kyu Chang Won, Hyoung Woo Lee
Journal of Korean Medical Science.2012; 27(9): 1057. CrossRef
Relationship between inflammation biomarkers, antioxidant vitamins, and bone mineral density in patients with metabolic syndrome
Yesong Lee, Misung Kim, Kyungsuk Choi, Juyong Kim, Wookyung Bae, Sohye Kim, Cheongmin Sohn
Nutrition Research and Practice.2011; 5(2): 150. CrossRef

Evaluation of Fasting Plasma Glucose as a Screening for Diabetes Mellitus in Middle-aged Adults of Naju Country.: Jin Hwa Kim, Mi Ah Han, Chol Jin Park, Il Goo Park, Ji Hye Shin, Sang Yong Kim, So Yeon Ryu, Hak Yeon Bae; Korean Diabetes J. 2008;32(4):328-337. Published online August 1, 2008; DOI: https://doi.org/10.4093/kdj.2008.32.4.328

2,929 View
27 Download
5 Crossref

Abstract PDF

BACKGROUND
The criteria for the diagnosis of diabetes mellitus have been modified by the American Diabetes Association (ADA) in 1997. The ADA proposed that the diagnosis of diabetes be defined by a fasting plasma glucose (FPG) of 7.0 mmol/L. Disagreement has been reported between criteria based on FPG and postchallenge 2-h plasma glucose (2-h PG). The aim of the present study is to assess the FPG criteria as the diagnostic screening test for diabetes in Korean middle-aged adults in comparison to the 2-h PG criteria. METHODS: Randomly selected 1,731 subjects (679 men and 1,052 women) aged 40~70 years (mean age: 58.4 +/- 7.89 years) without previously diagnosed diabetes completed 75 g oral glucose tolerance test (OGTT). We assessed the prevalence of diabetes mellitus and the level of agreement (kappa statistics) according to the different diagnostic glucose categories. RESULTS: The frequency of newly diagnosed diabetes was 2.7% (n = 51) using the FPG criteria only; 6.4% (n = 120) using the 2-h PG criteria only; and 6.9% (n = 130) using concentrations of > or = 7.0 mmol/L for FPG or > or = 11.1 mmol/L for 2-h PG. Of the 120 subjects with diabetes by the 2-h PG criteria, 65.8% (n = 79) were not diagnosed with diabetes according to FPG concentration. The level of agreement between two diagnostic criteria was low (kappa = 0.268). The receiver operating characterstic (ROC) curve analysis determined FPG of 5.6 mmol/L to yield optimal sensitivity and specificity corresponding to 2-h PG 11.1 mmol/L. CONCLUSION: The findings in this study demonstrate that the discordance between the FPG and 2-h PG criteria in the diagnosis of diabetes in Korean middle-aged adults is large. We suggest that IFG group (FPG 5.6~6.9 mmol/L) were performed 75 g OGTT for diagnosing diabetes mellitus in Korean middle-aged adults.

Citations

Citations to this article as recorded by

The Distribution and Characteristics of Abnormal Findings Regarding Fasting Plasma Glucose and HbA1c - Based on Adults Except for Known Diabetes
Seyoung Kwon, Youngak Na
The Korean Journal of Clinical Laboratory Science.2017; 49(3): 239. CrossRef
Gender differences in metabolic syndrome components among the Korean 66-year-old population with metabolic syndrome
Sangjin Lee, Young Ko, Chanyeong Kwak, Eun-shil Yim
BMC Geriatrics.2016;[Epub] CrossRef
2011 Clinical Practice Guidelines for Type 2 Diabetes in Korea
Seung-Hyun Ko, Sung-Rea Kim, Dong-Joon Kim, Seung-Joon Oh, Hye-Jin Lee, Kang-Hee Shim, Mi-Hye Woo, Jun-Young Kim, Nan-Hee Kim, Jae-Taik Kim, Chong Hwa Kim, Hae Jin Kim, In-Kyung Jeong, Eun-Kyung Hong, Jae-Hyoung Cho, Ji-Oh Mok, Kun-Ho Yoon
Diabetes & Metabolism Journal.2011; 35(5): 431. CrossRef
Associated Factors of Impaired Fasting Glucose in Some Korean Rural Adults
Hye Eun Yun, Mi-ah Han, Ki Soon Kim, Jong Park, Myeng Guen Kang, So Yeon Ryu
Journal of Preventive Medicine and Public Health.2010; 43(4): 309. CrossRef
Comparing Survival Functions with Doubly Interval-Censored Data: An Application to Diabetes Surveyed by Korean Cancer Prevention Study
Sun-Ha Jee, Chung-Mo Nam, Jin-Heum Kim
Korean Journal of Applied Statistics.2009; 22(3): 595. CrossRef

Effects of Caloric Restriction on the Expression of PGC-1 and PPARs mRNA in Liver of Otsuka Long-Evans Tokushima Fatty Rats.: Sang Yong Kim, Jin Hwa Kim, Hak Yeon Bae, Byoung Rai Lee; Korean Diabetes J. 2006;30(3):161-169. Published online May 1, 2006; DOI: https://doi.org/10.4093/jkda.2006.30.3.161

2,018 View
26 Download

Abstract PDF: BACKGROUND
Gluconeogenesis is strongly stimulated during fasting and is aberrantly activated in diabetes mellitus. PPARgamma-coactivator 1 (PGC-1) and Peroxisome proliferator -activated receptors (PPARs) costimulate the expression of key enzymes of gluconeogenetic pathway. This study was performed to evaluate the response to dietary caloric restriction (CR) on the PPARs and PGC-1 expression in liver of diabetic Otsuka Long-Evans Tokushima Fatty (OLETF) rats. METHODS: Diabetic OLETF rats (male, 24 weeks) and Long-Evans Tokushima Otsuka (LETO) rats (male, 24 weeks) were used in this study. Liver PPARs and PGC-1 mRNA, and blood glucose levels were investigated at 1, 2, and 3 weeks after the beginning of 30% CR. PPARs and PGC-1 mRNA were determined by RT-PCR and blood glucose levels were measured by spectrophotometric assay. RESULTS: The liver PGC-1 mRNA expressions were increased to 19% in non-diabetic LETO rats but significant change was not observed in diabetic OLETF rats by 30% CR. The liver PPARgamma mRNA expressions were not changed in non-diabetic LETO rats but increased to 23% in diabetic OLETF rats by 30% CR. The difference of PPARalpha and PPARbeta mRNA expressions in liver of OLETF and LETO rats were not observed. CONCLUSION: The liver PPARgamma and PGC-1 expression response to CR are altered in OLETF rats compared to in LETO rats. These findings suggested that PPARgamma and PGC-1 expression control system altered in diabetic OLETF rat liver and altered PPARgamma and PCG-1 expression may some roles on the aberrantly activated gluconeogenesis in diabetes mellitus.

Effects of Gutathione on Cyclosporine A-induced Cyotoxicity in Cultured Rat Insulinoma (RIN5mF) Cells.: Dong Hyun Choi, Byoung Rai Lee, Dai Yong Jang, Jong O Kim, Byung Soo Kim, Ki Young Chung, Tae Young Lim, Byung Chul Shin, Hak Yeon Bae; Korean Diabetes J. 2002;26(1):58-64. Published online February 1, 2002

1,104 View
19 Download

Abstract PDF: BACKGROUND
Cyclosporin A (CsA) is a immunosuppressive agent that is most widely used in organ transplanted patients to prevent immunorejection, However, it has some side effects, including diabetes mellitus, nephrotoxicity and hypertension. The mechanism of CsA cytotoxicity is unclear but it has been suggested that reactive oxygen species are involved in the cytotoxic reactions. The purpose of this study was to determine the effects of glutathione, as a physiological antioxidant on CsA induced beta-cell toxicity. METHODS: Rat insulinoma (RINm5F) cells were incubated with culture media (RPMI1640) in the presence of CsA and/or buthionine sulfoximine (BSO), which is an inhibitor of r-glutamyl cysteine synthetase, and reduced glutathione. The viable cells were examined using 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyl tetrazolium bromide (MTT) and was determined by a spectrophotometer at a wavelength of 570 nm. RESULTS: Incubating the RINm5F cells with CsA resulted in a decrease in cell viability with increasing dose. This deceased cells viability, induced by CsA was potentiated by BSO treatment. The CsA and BSO induced cells toxicity was reduced significantly by the reduced glutathione. CONCLUSION: The results suggest that pancreatic beta-cell may be injured by CsA and glutathione may have some role in cytotoxicity.

Changes of TBARS and GGTase in Ischemia / Reflowed Kidney of Alloxan-diabetic Rat.: Jong Hoon Chung, Hak Yeon Bae, Jong Hee Cha, Jae Yoon Park, Pyoung Sim Park, Kwang Sam Koh, Byoung Rai Lee; Korean Diabetes J. 1999;23(6):777-784. Published online January 1, 2001

943 View
18 Download

Abstract PDF: BACKGROUND
To investigate the influence of diabetes mellitus (DM) on ischemia/reflow injury, the contents of thiobarbituric acid reactive substance (TBARS: marker of peroxidative cell injury), and the activity of gamma-glutamyltransferase (GGTase: marker of brush border membrane injury) were measured in ischemia/reflowed kidney of diabetic rats. METHODS: Rats were divided into the 3 groups; control (C), diabetes for 2 weeks (DM2) and diabetes for 4 weeks (DM4), and DM was induced by alloxan (80 mg/kg ip). Left kidney was subjected to 30 min of ischemia and 15 min of blood reflow, and the right kidney was used as a control kidney. The activities of antioxidant enzymes and GGTase, and the contents of TBARS were determined in kidney homogenate. RESULT: Catalase activity in ischemia/reflowed kidney was decreased 20% (p<0.05) in C, 34% (p<0.01) in DM2 and 23% (p<0.01) in DM4, while the change of SOD and GSHPx activities were not observed in kidney of diabetic rats cornpared with group C. TBARS contents, when ischemia/reflow, increased by 23% in C, 19% (p<0.01) in DM2, 16% in DM4, while the activity of GGTase decreased by 40% i#n C, 54% in DM2, and 55% (p<0.01) in kidney of DM4. CONCLUSION: The TBARS contents in ischemia/ reflow kidney of diabetic group showed no change, while GGTase activity was decreased significantly when compared with control group. This study may suggested that in ischemia/reflow kidney, the peroxidative membrane lipid injury was not increased, but the brush border membrane injury was increased by DM.

The Role of Oxidized Low Density Lipoprotein in Atherogenesis.: Hak Yeon Bae; Korean Diabetes J. 1999;23(1):7-11. Published online January 1, 2001

877 View
17 Download

Abstract PDF: No abstract available.

Plasma Paraoxonase Activities in Type 2 Diabetes Mellitus.: Gyoung Mu Her, Hak Yeon Bae, Byoung Rai Lee; Korean Diabetes J. 1998;22(3):403-409. Published online January 1, 2001

825 View
21 Download

Abstract PDF: BACKGROUND
Human serum paraoxonase is physically associated with HDL and has been implicated in the detoxification of organophosphate and possibly in the prevention of LDL lipid peroxidation. The activities of paraoxonase and levels of HDL cholesterol were measured in the serum of individuals with type 2 diabetes mellitus in order to evaluate whether a correlation exists between these cnzyme activities and the diabetes mellitus and dliabetic complications. METHODS: Plasma samples were obtain from 60 individuals with type 2 diabetes mellitus(32 women and 28 men; mean age=55.8 yrs) and 30 individuals with healthy control(16 women and 14 men; mean age=-54.1 yrs). Paraoxonase activities were measured spectrophotometrically in 0.1IM Tris-HC1 buffer(pH= 7.4) at 25C with paraoxon as substrate(5.5mM) at 405nm. RESULTS: No significant differences of plasma paraoxonase activity between healthy control and type 2 diabetes mellitus were observed. The significant difference of plasma paraoxonase activity between healthy control and type 2 diabetes mellitus with diabetic complications such as diabetic neuropathy, diabetic retinopathy and diabetic nephropathy were observed. The difference of plasma paraoxonase activity between individuals with type 2 diabetes mellitus without diabetic complication and type 2 diabetes mellitus with diabetic complications was significant. The correlation between paraoxonase activity and HDL-cholesterol, plasma lipoproteins, HbAlc and duration of diabetes were not observed. CONCLUSION: These experimental results suggested that the plasma paraoxonase activity wasnt decreased in individuals with type 2 diabetes mellitus without diabetic complication and the decrement of plasma paraoxonase activity was might be associated with diabetic chronic complications.

The Effect of High Glucose on the Activity of Superoxide Dismutase in NIN6N8a Cells.: Hak Yeon Bae, Byoung Rai Lee, Kwang Sam Kho; Korean Diabetes J. 1998;22(3):271-289. Published online January 1, 2001

901 View
18 Download

Abstract PDF: BACKGROUND
Reactive oxygen species play a role in the pathogenesis of diabetes mellitus. Hyperglycemia may cause increased production of free radicals, and peroxide formation was increased in high glucose solution. It has been demonstrated that active oxygen species induce antioxidant enzyme expression in some tissues and cells. This study was designed to investigate the effect of high glucose on the activity of superoxide dismutase(SOD) in mouse insulinoma(MIN6N8a) cells. METHODS: MIN6N8a cells were grown in RPMI1640 medium with l0% fetal bovine serum and NIH3T3 cells used as a control cells. The cells were cultured in 5.6 and 22.2 mM glucose cnntained medium. The activities of SOD, catalase and GPX were determined in crude cell extract after 7 days of culture. The levels of CuZn-SOD were also measured with ELISA using anti-CuZn-SOD antibody. RESULTS: In MIN6NSa cells, the catalase activity was very low compared with NIH3T3 cells, but there was no difference in activities of CuZn-SOD and GPX between MIN6N8a cells and NIH3T3 cells. The activity of CuZn-SOD was decreased, while Mn-SOD was increased in MIN6NSa cells cultured with high glucose(22.2 mM) medium compared with those of normoglucose(5.6 mM) medium. However, the level of CuZn-SOD in MIN6NSa cells, when measured with ELISA was high in cells of cultured with high glucose medium. The SOD activity was not effected in MIN6N8a cells cultured with insulin contained medium. CONCLUSION: These experimental result suggest that the CuZn-SOD activity was decreased in MIN6N8a cells cultured with high glucose contained medium and this effect may be resulted from the protein inactivation rather than decrement of protein level.

Author index