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The ENPP1 K121Q polymorphism is not associated with type 2 diabetes and related metabolic traits in an Iranian population

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Abstract

The K121Q polymorphism of the ectoenzyme nucleotide pyrophosphate phosphodiesterase 1 (ENPP1) gene has been variably associated with insulin resistance and type 2 diabetes (T2D) in several populations. However, this association has not been studied in Iranian subjects and we hypothesized that the K121Q variant might be associated with T2D and related metabolic traits in this population. The K121Q genotypes were determined by PCR-restriction fragment length polymorphism in 377 normoglycemic controls and 155 T2D patients. T2D patients had significantly higher values for systolic and diastolic blood pressure, BMI, glucose, cholesterol, triglyceride, LDL, apoB, insulin, and HOMA-IR, and lower levels of HDL than the normoglycemic subjects. The frequency of the Q allele did not differ between T2D and normoglycemic subjects (OR 0.96, 95% CI 0.90–2.00, P = 0.70). The Q allele frequency was 16.5% in T2D and 15.2% in normoglycemic subjects. The ENPP1 genotype (KQ + QQ) was not associated with the systolic and diastolic blood pressure, glucose, triglyceride, cholesterol, LDL-C and HDL-C, apo B, BMI, HOMA-IR, and insulin levels in both normoglycemic and T2D groups. Our results suggest that the ENPP1 121Q allele might not be associated with T2D and related metabolic traits among Iranian subjects.

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References

  1. King H, Aubert RE, Herman WH (1998) Global burden of diabetes, 1995–2025. Diabetes Care 21:1414–1431

    Article  PubMed  CAS  Google Scholar 

  2. Meshkani R, Adeli K (2009) Hepatic insulin resistance, metabolic syndrome and cardiovascular disease. Clin Biochem 42:1331–1346

    Article  PubMed  CAS  Google Scholar 

  3. Meshkani R, Adeli K (2009) Mechanisms linking the metabolic syndrome and cardiovascular disease: role of hepatic insulin resistance. J Tehran Univ Heart Cent 2:77–84

    Google Scholar 

  4. Meshkani R, Taghikhani M, Larijani B, Khatami Sh, Khoshbin E, Adeli K (2006) The relationship between homeostasis model assessment and cardiovascular risk factors in Iranian subjects with normal fasting glucose and normal glucose tolerance. Clin Chim Acta 371:169–175

    Article  PubMed  CAS  Google Scholar 

  5. Hamman R (1992) Genetic and environmental determinants of non-insulin dependent diabetes mellitus (NIDDM). Diabetes Metab Res Rev 8:287–338

    Article  CAS  Google Scholar 

  6. Maddux BA, Sbraccia P, Kumakura S, Sasson S, Youngren J, Fisher A et al (1995) Membrane glycoprotein PC-1 and insulin resistance in non-insulin-dependent Diabetes mellitus. Nature 373:448–451

    Article  PubMed  CAS  Google Scholar 

  7. Dong H, Maddux BA, Altomonte J, Meseck M, Accili D, Terkeltaub R et al (2005) Increased hepatic levels of the insulin receptor inhibitor, PC- 1/ENPP1, induce insulin resistance and glucose intolerance. Diabetes 54:367–372

    Article  PubMed  CAS  Google Scholar 

  8. Goding JW, Terkeltaub R, Maurice M, Deterre P, Sali A, Belli SI (1998) Ecto phosphodiesterase/pyrophosphatase of lymphocytes and non-lymphoid cells: structure and function of the PC-1 family. Immunol Rev 161:11–26

    Article  PubMed  CAS  Google Scholar 

  9. Funakoshi I, Kato H, Horie K, Yano T, Hori Y, Kobayashi H et al (1992) Molecular cloning of cDNAs for human fibroblast nucleotide pyrophosphatase. Arch Biochem Biophys 295:180–187

    Article  PubMed  CAS  Google Scholar 

  10. Frittitta L, Youngren J, Vigneri R, Maddux BA, Trischitta V, Goldfine ID (1996) PC-1 content in skeletal muscle of non-obese, non-diabetic subjects: relationship to insulin receptor tyrosine kinase and whole body insulin sensitivity. Diabetologia 39:1190–1195

    Article  PubMed  CAS  Google Scholar 

  11. Pizzuti A, Frittitta L, Argiolas A, Baratta R, Goldfine ID, Bozzali M et al (1999) A polymorphism (K121Q) of the human glycoprotein PC-1 gene coding region is strongly associated with insulin resistance. Diabetes 48:1881–1884

    Article  PubMed  CAS  Google Scholar 

  12. Gu HF, Almgren P, Lindholm E, Frittitta L, Pizzuti A, Trischitta V et al (2000) Association between the human glycoprotein PC-1 gene and elevated glucose and insulin levels in a paired-sibling analysis. Diabetes 49:1601–1603

    Article  PubMed  CAS  Google Scholar 

  13. Meyre D, Bouatia-Naji N, Tounian A, Samson C, Lecoeur C, Vatin V et al (2005) Variants of ENPP1 are associated with childhood and adult obesity and increase the risk of glucose intolerance and type 2 diabetes. Nat Genet 37:863–867

    Article  PubMed  CAS  Google Scholar 

  14. Costanzo BV, Trischitta V, Di Paola R, Spampinato D, Pizzuti A, Vigneri R et al (2001) The Q allele variant (GLN121) of membrane glycoprotein PC-1 interacts with the insulin receptor and inhibits insulin signaling more effectively than the common K allele variant (LYS121). Diabetes 50:831–836

    Article  PubMed  CAS  Google Scholar 

  15. Maddux BA, Chang YN, Accili D, McGuinness OP, Youngren JF, Goldfine ID (2006) (2001). Overexpression of the insulin receptor inhibitor PC-1/ENPP1 induces insulin resistance and hyperglycemia. Am J Physiol Endocrinol Metab 290:E746–E749

    Article  PubMed  CAS  Google Scholar 

  16. Meshkani R, Taghikhani M, Al-Kateb H, Larijani B, Khatami S, Sidiropoulos GK et al (2007) Polymorphisms within the protein tyrosine phosphatase 1B (PTPN1) gene promoter: functional characterization and association with type 2 diabetes and related metabolic traits. Clin Chem 53:1585–1592

    Article  PubMed  CAS  Google Scholar 

  17. Expert committee on the diagnosis and classification of Diabetes mellitus (1997) Report of the expert committee on the diagnosis and classification of Diabetes mellitus. Diabetes Care 20:1183–1197

    Google Scholar 

  18. Matthews D, Hosker J, Rudenski A, Naylor B, Treacher D, Turner R (1985) Homeostasis model assessment: insulin resistance and B-cell function from fasting plasma glucose and insulin concentrations in man. Diabetologia 28:412–419

    Article  PubMed  CAS  Google Scholar 

  19. Gauderman WJ (2002) Sample size requirements for matched case-control studies of gene-environment interaction. Stat Med 21:35–50

    Article  PubMed  Google Scholar 

  20. Hamaguchi K, Terao H, Kusuda Y, Yamashita T, Hazoury Bahles JA, Cruz LLM et al (2004) The PC-1 Q121 allele is exceptionally prevalent in the Dominican Republic and is associated with Type 2 Diabetes. J Clin Endocrinol Metab 89:1359–1364

    Article  PubMed  CAS  Google Scholar 

  21. Abate N, Chandalia M, Satija P, Adams-Huet B, Grundy SM, Sandeep S et al (2005) ENPP1/PC-1 K121Q polymorphism and genetic susceptibility to type 2 diabetes. Diabetes 54:1207–1213

    Article  PubMed  CAS  Google Scholar 

  22. Laukkanen O, Pihlajamaki J, Lindstrom J, Eriksson J, Valle TT, Hamalainen H et al (2004) Finnish diabetes prevention study group. Common polymorphism in the genes regulating the early insulin signaling pathway: effects on weight change and the conversion from impaired glucose tolerance to type 2 diabetes. The Finnish diabetes prevention study. Diabetologia 47:871–877

    Article  PubMed  CAS  Google Scholar 

  23. Bouhaha R, Meyre D, Abid Kamoun H, Ennafaa H, Vaillant E, Sassi R et al (2008) Effect of ENPP1/PC-1–K121Q and PPARg-Pro12Ala polymorphisms on the genetic susceptibility to T2D in the Tunisian population. Diabetes Res Clin Pract 81:278–283

    Article  PubMed  CAS  Google Scholar 

  24. Keshavarz P, Inoue H, Sakamoto Y, Kunika K, Tanahashi T, Nakamura N et al (2006) No evidence for association of the ENPP1 (PC-1) K121Q variant with risk of type 2 diabetes in a Japanese population. J Hum Genet 51:559–566

    Article  PubMed  CAS  Google Scholar 

  25. Rasmussen SK, Urhammer SA, Pizzuti A, Echwald SM, Ekstrom CT, Hansen L et al (2000) The K121Q variant of the human PC-1 gene is not associated with insulin resistance or type 2 diabetes among Danish Caucasians. Diabetes 49:1608–1611

    Article  PubMed  CAS  Google Scholar 

  26. Hegele RA, Harris SB, Zinman B, Hanley AJ, Cao H (2001) Absence of association of type 2 diabetes with CAPN 10 and PC-1 polymorphisms in Oji-Cree. Diabetes Care 24:1498–1499

    Article  PubMed  CAS  Google Scholar 

  27. Grarup N, Urhammer SA, EK J, Albrechtsen A, Glumer C, Borch-Johnsen K et al (2006) Studies of the relationship between the ENPP1 K121Q polymorphism and type 2 diabetes, insulin resistance and obesity in 7, 333 Danish white subjects. Diabetologia 49:2097–2104

    Article  PubMed  CAS  Google Scholar 

  28. Miao-Pei C, Fu-Mei C, Dao-Ming C, Jack C-R T, Han-Fen H, Shyi-Jang S et al (2006) ENPP1 K121Q polymorphism is not related to type 2 diabetes mellitus, features of metabolic syndrome, and diabetic cardiovascular complications in a Chinese population. Rev Diabet Stud 3:21–30

    Article  Google Scholar 

  29. Hyun-Ju S, Soo-Geun K, Oh-Joong K (2008) The K121Q polymorphism in ENPP1 (PC-1) is not associated with type 2 diabetes or obesity in Korean male workers. J Korean Med Sci 23:459–464

    Article  Google Scholar 

  30. Weedon MN, Shields B, Hitman G, Walker M, McCarthy MI, Hattersley AT et al (2006) No evidence of association of ENPP1 variants with type 2 diabetes or obesity in a study of 8, 089 U.K. Caucasians. Diabetes 55:3175–3179

    Article  PubMed  CAS  Google Scholar 

  31. Bacci S, Ludovico O, Prudente S, Zhang YY, Di Paola R, Mangiacotti D et al (2005) The K121Q polymorphism of the ENPP1/PC-1 gene is associated with insulin resistance/atherogenic phenotypes, including earlier onset of type 2 diabetes and myocardial infarction. Diabetes 54:3021–3025

    Article  PubMed  CAS  Google Scholar 

  32. McAteer JB, Prudente S, Bacci S, Lyon HN, Hirschhorn JN, Trischitta V et al (2008) ENPP1 Consortium. The ENPP1 K121Q polymorphism is associated with type 2 diabetes in European populations: evidence from an updated meta-analysis in 42,042 subjects. Diabetes 57:1125–1130

    Google Scholar 

  33. Kubaszek A, Pihlajamaki J, Karhapaa P, Vauhkonen I, Laakso M (2003) The K121Q polymorphism of the PC-1 gene is associated with insulin resistance but not with dyslipidemia. Diabetes Care 26:464–467

    Article  PubMed  CAS  Google Scholar 

  34. Frittitta L, Baratta R, Spampinato D, Di Paola R, Pizzuti A, Vigneri R et al (2001) The Q121 PC-1 variant and obesity have additive and independent effects in causing insulin resistance. J Clin Endocrinol Metab 86:5888–5891

    Article  PubMed  CAS  Google Scholar 

  35. Abate N, Carulli L, Cabo-Chan A, Chandalia M, Snell PG, Grundy SM (2003) Genetic polymorphism PC-1 K121Q and ethnic susceptibility to insulin resistance. J Clin Endocrinol Metab 88:5927–5934

    Article  PubMed  CAS  Google Scholar 

  36. Meshkani R, Taghikhani M, Mosapour A, Larijani B, Khatami Sh, Khoshbin E et al (2007) 1484insG polymorphism of the PTPN1 gene is associated with insulin resistance in an Iranian population. Arch Med Res 38:556–562

    Article  PubMed  CAS  Google Scholar 

  37. Horikoshi M, Hara K, Ito C, Shojima N, Nagai R, Ueki K et al (2007) Variations in the HHEX gene are associated with increased risk of T2D in the Japanese population. Diabetologia 50:2461–2466

    Article  PubMed  CAS  Google Scholar 

  38. Gonzáles-Sánchez JL, Martínez-Larrad MT, Femández-Pérez C, Kubaszek A, Laakso M, Serrano-Rios M (2003) K121Q PC-1 gene polymorphism is not associated with insulin resistance in a Spanish population. Obes Res 11:603–605

    Article  Google Scholar 

  39. Chandali M, Grundy SM, Adamd-Huet B, Abate N (2007) Ethnic difference in the frequency of ENPP1/PC1 121Q genetic variant in the Dallas Heart study cohort. J Diabetes Complicat 21:143–148

    Article  Google Scholar 

  40. Ferrannini E, DeFronzo RA, Bonadonna RC (1992) Pathogenesis of NIDDM: a balanced overview. Diabetes Care 15:318–368

    Article  PubMed  Google Scholar 

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Correspondence to Reza Meshkani.

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Saberi, H., Mohammadtaghvaei, N., Gulkho, S. et al. The ENPP1 K121Q polymorphism is not associated with type 2 diabetes and related metabolic traits in an Iranian population. Mol Cell Biochem 350, 113–118 (2011). https://doi.org/10.1007/s11010-010-0687-z

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