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Yun Jeong Doh  (Doh YJ) 3 Articles
Association of the Polymorphisms in the PSMA6 (rs1048990) and PSMB5 (rs2230087) Genes with Type 2 Diabetes in Korean Subjects.
Hee Kyoung Kim, Su Won Kim, Yun Jeong Doh, Sae Rom Kim, Mi Kyung Kim, Keun Gyu Park, Hye Soon Kim, Kyong Soo Park, Min Yoo, Jung Guk Kim, Bo Wan Kim, In Kyu Lee
Korean Diabetes J. 2008;32(3):204-214.   Published online June 1, 2008
DOI: https://doi.org/10.4093/kdj.2008.32.3.204
  • 2,345 View
  • 26 Download
  • 3 Crossref
AbstractAbstract PDF
BACKGROUND
The 26S ubiquitin-proteasome system (UPS) is a principal proteolytic pathway of intracellular molecules regulating apoptosis, cell cycle, cell proliferation or differentiation, inflammation and etc. The recent study suggests that the rs1048990 (C/G) polymorphism of the proteasome subunit alpha type 6 (PSMA6) gene is associated with the increase of the risk of myocardial infarction by the dysregulation of IkappaB degradation. We hypothesized that 26S UPS is important in the development of insulin resistance and type 2 diabetes (T2DM) by controlling the degradation of IkappaB and insulin receptor substances as a substrate. We therefore investigated whether the rs1048990 (C/G) polymorphism of PSMA6 gene and the rs2230087 (G/A) polymorphism of proteasome subunit beta type 5 gene (PSMB5), that is chymotrypsin-like protease determining the rate of proteolysis, are associated with susceptibility to T2DM in Korean subjects. METHODS: We examined the polymorphisms of these genes in 309 diabetic subjects and 170 non-diabetic controls. The polymorphisms of rs1048990 (C/G) and rs2230087 (G/A) were genotyped by real-time PCR. RESULTS: The frequency of the G allele of rs1048990 (C/G) and the A allele of rs2230087 (G/A) polymorphisms was significantly higher in diabetic patients (28% and 13%) compared to that in controls (13% and 1%; P = 0.000 and P = 0.000, respectively). Logistic regression analysis of the rs1048990 (C/G) polymorphism showed that the odds ratio (OR) (adjusted for age, smoking, waist circumference, fasting plasma glucose, systolic blood pressure, HDL-C, triglyceride, and total cholesterol) was 3.93 (95% confidence interval [CI], 2.35-6.59; P = 0.000) for the G allele and 5.09 (95% CI, 2.71-9.57; P = 0.000) for CG and GG genotype when compared with the CC genotype. Logistic regression analysis of the rs2230087 (G/A) polymorphism showed that the adjusted OR was 5.70 (95% CI, 1.63-19.98; P = 0.007) for the A allele and 6.08 (95% CI, 1.66-22.29; P = 0.006) for GA and AA genotype when compared with the GG genotype. In multiple logistic regression analysis with T2DM as the independent Variable rs1048990 (C/G) and rs2230087 (G/A) polymorphisms were the predictor for T2DM. CONCLUSION: We suggest that the G allele of rs1048990 (C/G) polymorphism and the A allele of rs2230087 (G/A) polymorphism may be genetic risk factor to type 2 diabetes mellitus in Korean subjects.

Citations

Citations to this article as recorded by  
  • Ubiquitin-proteasome system in diabetic retinopathy
    Zane Svikle, Beate Peterfelde, Nikolajs Sjakste, Kristine Baumane, Rasa Verkauskiene, Chi-Juei Jeng, Jelizaveta Sokolovska
    PeerJ.2022; 10: e13715.     CrossRef
  • 1,4‐Dihydropyridine derivatives without Ca2+‐antagonist activity up‐regulate Psma6 mRNA expression in kidneys of intact and diabetic rats
    Kristīne Ošiņa, Evita Rostoka, Jelizaveta Sokolovska, Natalia Paramonova, Egils Bisenieks, Gunars Duburs, Nikolajs Sjakste, Tatjana Sjakste
    Cell Biochemistry and Function.2016; 34(1): 3.     CrossRef
  • Genetic variations in the PSMA3, PSMA6 and PSMC6 genes are associated with type 1 diabetes in Latvians and with expression level of number of UPS-related and T1DM-susceptible genes in HapMap individuals
    Tatjana Sjakste, Natalia Paramonova, Kristine Osina, Kristine Dokane, Jelizaveta Sokolovska, Nikolajs Sjakste
    Molecular Genetics and Genomics.2016; 291(2): 891.     CrossRef
Association of Kir6.2 and Peroxisome Proliferator-activated Receptor-gamma (PPARgamma) Polymorphisms with Type 2 Diabetes in Koreans.
Jung Eun Lee, Su Won Kim, Hyun Ae Seo, Jae Han Jeon, Seong Su Moon, Hee Kyung Kim, Yun Jeong Doh, Bo Wan Kim, Jung Guk Kim, Min Yoo, In Kyu Lee
Korean Diabetes J. 2007;31(6):455-464.   Published online November 1, 2007
DOI: https://doi.org/10.4093/jkda.2007.31.6.455
  • 2,326 View
  • 18 Download
AbstractAbstract PDF
BACKGROUND
The type 2 diabetes is a typical polygenic disease complex, for which several common risk alleles have been identified. Several variants may contribute significantly to the risk of type 2 diabetes conferring insulin resistance of liver, muscle and fat (Pro12Ala) and a relative insulin secretory deficiency (Glu23Lys). In this study, we evaluated the association of Pro12Ala variant of the peroxisome proliferator- activated receptor-gamma and the Glu23Lys variant of the ATP-sensitive potassium channel, Kir6.2 (KCNJ11) with the type 2 diabetes in Korean population. METHOD: This study included 331 subjects consisting of 172 patients with type 2 diabetes and 159 non- diabetic control subjects enrolled from the Kyungpook, Keimyung and Catholic university hospital in Daegu, Korea. We genotyped Kir6.2 (Glu23Lys) and PPARgamma (Pro12Ala) polymorphism and examined their association with the type 2 diabetes. RESULT: In the separate analyses, the Kir6.2 Glu23Lys (P = 0.385) and the PPARgamma Pro12Ala (P = 0.191) polymorphism showed no significant association with type 2 diabetes. In addition, the results of our study showed no evidence of a synergistic interaction between Kir6.2 and PPARgamma gene in each group (P = 0.110, P = 0.276). CONCLUSION: In this study, no association was seen between the genetic polymorphisms of Kir6.2, PPARgamma and type 2 diabetes. However, to clarify whether genetic polymorphisms of these genes contribute to the development of type 2 diabetes, further studies involving larger Korean populations may be needed.
The Effect of High Glucose and TGF-beta on the Cellular Injury in Cultured Glomerular Epithelial Cells.
Gui Hwa Jeong, Sung Chang Chung, Eui Dal Jung, Yun Jeong Doh, Hee Kyoung Kim, Soon Hong Park, In Hae Park, Jung Guk Kim, Sung Woo Ha, Bo Wan Kim, In Kyu Lee, Cheol Woo Ko
Korean Diabetes J. 2006;30(4):254-263.   Published online July 1, 2006
DOI: https://doi.org/10.4093/jkda.2006.30.4.254
  • 1,899 View
  • 19 Download
AbstractAbstract PDF
BACKGROUND
The glomerulus is a complex physiological structure, as well as selective filtration barrier in the control of renal blood flow and blood pressure. Glomerular epithelial cells may play an important role in development of diabetic nephropathy. Apoptosis of the glomerular epithelial cells are characterized by disappearance of a selective filtration barrier. TGF-beta is a key factor in the development of diabetic nephropathy because of its effects on the accumulation of extracellular matrix and mesangial cell proliferation. We examined whether the high glucose and TGF-beta induce the apoptosis in cultured rat glomerular epithelial cells. METHODS: Glomerular epithelial cells were cultured from rat glomeruli and conditioned with different concentration of TGF-beta or high-glucose. We measured apoptosis of cultured rat glomerular epithelial cell conditioning with different concentration of TGF-beta or high-glucose by using DNA electrophoresis. RESULTS: High glucose (25 mM) induced apoptosis of cultured rat glomerular epithelial cells compared to controls. TGF-beta also induced cell death of cultured rat glomerular epithelial cells in dose dependent manner. CONCLUSION: These results suggest that high glucose and TGF-beta-induced cell death of glomerular epithelial cell may play an important role in diabetic nephropathy and proteinuria. Pathway of apoptosis or cell death by high glucose and TGF-beta must be investigated in the glomerular epithelial cells.

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