The study on the relationship between the AGT gene M235T polymorphism and diabetic kidney disease

Tran Thi Thu Huong, Tran Van Khanh, Dang Thi Viet Ha, Nguyen Tho Anh, Nguyen Qui Hoai

Main Article Content

Abstract

This study was conducted to assess the association of the Angiotensinogen (AGT) gene  polymorphisms M235Tin diabetic kidney disease (DKD). The study was performed on 237 patients diagnosed with type 2 diabetes who agreed to perform ACR and RFLP-PCR tests from July 2015 to August 2018. The study group consisted of 117 patients with DKD, while the control group included 120 patients who are without DKD but have had type 2 diabetes for more than 10 years. The mean age of the participants was 68.3 years of age ± 8.2 years. Among 117 DKD patients, 50 (42.7%) were male and 67 (57.3%) were female. For M235T polymorphism of DKD, the frequencies of CC and (CT, TT) genotypes were 88% (n = 103) and 12% (n = 14); mean eGFR = 51.5 ± 20.6 ml/minute/1.73 m². Compared to the control group, risks of diabetic kidney disease were lower for T genotypes (CT, TT) with CC (OR: 0.7, 95% CI: 0.34 - 1.34) and CC (OR: 0.7, 95% CI: 0.32 - 1.42). In conclusion, AGT M235Tpolymorphisms are not associated with DKD in our subset of type 2 diabetes patients. Our results contribute to the better understanding of the genetic background of diabetic kidney disease. 

Article Details

References

1. Masakane I, Taniguchi M, Nakai S, et al. Dialysis Data Report 2016, JS Annual DT Renal Data Registry. Renal Replacement Therapy. 2018: 4 - 45.
2. Wu C, Lu H, Cassis LA, et al. Molecular and Pathophysiological Features of Angiotensinogen: A Mini Review. N Am J Med Sci (Boston). 2011; 4(4): 183 - 190.
3. Gnudi L Goldsmith D. Renin angiotensin aldosterone system (RAAS) inhibitors in the prevention of early renal disease in diabetes. F1000 Rep. 2010; 2(18): 2-18.
4. Campbell CY Fang BF Guo X et al. Associations between genetic variants in the ACE AGT AGTR1 and AGTR2 genes and renal function in the Multi-ethnic Study of Atherosclerosis. Am J Nephrol. 2010; 32(2): 156 - 162.
5. Reis KA, Ebinc FA, Koc E. Association of the angiotensinogen M235T and APO E gene polymorphisms in Turkish type 2 diabetic patients with and without nephropathy.Ren Fail 2011; 33(5): 469 - 474
6. Osawa N, Koya D, Araki S. Combinational effect of genes for the renin-angiotensin system in conferring susceptibility to diabetic nephropathy.J Hum Genet.2007; 52(2): 143 - 151.
7. Zhou TB, Yin SS, Qin YH. Association of angiotensinogen M235T gene polymorphism with end-stage renal disease risk: a metaanalysis. ol Biol Rep.2013; 40(2): 765 - 772.
8. Mtiraoui N, Ezzidi I, Turki A, et al. Reninangiotensin-aldosterone system genotypes and haplotypes affect the susceptibility to nephropathy in type 2 diabetes patients. J Renin Angiotensin Aldosterone Syst. 2011; 12(4): 572 - 580.
9. American Diabetes Association. 10. Microvascular Complications and Foot Care: Standards of Medical Care in Diabetes-2018.
Diabetes Care.2018; 41(1): 105 - 118.
10. Smyth LJ, Canadas-Garre M, Cappa RC, et al. Genetic associations between genes in the renin-angiotensin-aldosterone system and renal disease: a systematic review and metaanalysis. BMJ Open. 2019; 9(4): 762 - 777.