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Sang Wan Kim  (Kim SW) 2 Articles
Glutathion S-Transferase M1 Gene Polymorphism is Associated with Type 2 Diabetic Nephropathy.
Jae Hyeon Kim, Min Kyong Moon, Sang Wan Kim, Hyoung Doo Shin, Young Hwan Hwang, Curie Ahn, Hak Cheol Jang, Kyong Soo Park, Seong Yeon Kim, Hong Kyu Lee
Korean Diabetes J. 2005;29(4):315-321.   Published online July 1, 2005
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AbstractAbstract PDF
BACKGROUND
Oxidative stress may be a determinant of the development of diabetic nephropathy. Glutathione S-transferases(GST) can work as an endogenous antioxidant to protect cells from oxidative stress. Homozygous deletion of the mu and theta subclasses of GST(GST-M1 and GST-T1), and Val105Ile polymorphism of the pi subclass of GST(GST-P1) are associated with antioxidant enzyme activity. In this study, whether the Val105Ile of GST-P1, null genotype of GST-M1 and GST-T1 are associated with type 2 diabetic nephropathy were examined. METHODS: These GST subclasses were genotyped in 361 type 2 diabetic patients with retinopathy; the subjects were divided into two groups, those with an end stage renal disease(ESRD)(the case group n=177) and those(the control group, n=184) showing no signs of renal involvement. RESULTS: The frequencies of the GST-P1 Ile105Val and GST-T1 null genotypes were no different between the cases and controls. However, the frequency of the GST-M1 null genotype was significantly higher in the cases than the controls(61.7% vs. 51.1%, chi-square=4.09, P=0.043), which was still significant after correction for age, sex and duration of diabetes (P= 0.044). In addition, the GST-M1 null genotype showed an increased frequency between the controls and the cases with long and short durations of type 2 diabetes until the onset of ESRD(51.1, 58.9 and 65.5%, respectively; chi-square for trend=5.12, P=0.024). CONCLUSION: This is the first study to suggest that the GST-M1 gene polymorphism might contribute to the development of ESRD in type 2 diabetic patients.
Comparison of Clinical Characteristics of Impaired Fasting Glucose with Impaired Glucose Tolerance in Yonchon County.
In Kyong Jeong, Min Kyong Moon, Sang Wan Kim, Young Joo Park, Sun Yuk Kim, Chan Soo Shin, Do Joon Park, Kyong Soo Park, Seong Yeon Kim, Bo Youn Cho, Noe Kyeong Kim, Hong Kyu Lee
Korean Diabetes J. 2000;24(1):71-77.   Published online January 1, 2001
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AbstractAbstract PDF
BACKGROUND
To compare the clinical characteristics of 1997 American Diabetes Association (ADA) impaired fasting glucose (IFG) based on fasting plasma glucose (FPG) with World Health Organization (WHO) impaired glucose tolerance (IGT) based on oral glucose tolerance test (OGTT) in a Korean population. METHODS: The analyses were based on the data of 2,251 subjects aged 30-80 years obtained from the surveys of Yonchon County in Korea in 1993, and the data of 1084 subjects participated in the follow-up survey in 1995. Prevalence of glucose tolerance categories was obtained by using WHO and ADA criteria, and the level of agreement was estimated by index. Cardiovascular risk profile and the incidence of diabetes based on the ADA criteria after 2 years were compared by focusing on the discordant ctiagnostic categories namely IGT/NFS in which the subjects were diagnosed as IGT by WHO criteria but normal fasting glucose(NFG) by ADA criteria and NGT/IFG diagnosed as normal glucose tolerance(NGT) by WHO but IFG by ADA. Results The ADA criteria failed to diagnose 69% of IGT patients, that is 62% of them were considered normal and 7% as diabetes. The overall agreement was poor (x statistics = 0.32, p<0.05). Subjects classified into IGT/NFG or NGT/IFG showed the worse cardiovascular risk profile and higher incidence of diabetes than NGT/NFG. Especially, subjects with NGT/IFG exhibited higher incidence of diabetes than those with IGT/NFG. CONCLUSION: Although IFG predicts subsequent development of diabetes much better than IGT, the vast majority of the subjects with IGT will be missed according to ADA criteria based on FPG only. Consequently FPG alone could be an inadequate substitute for the OGTT.

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