The ACE2 G8790A Polymorphism: Involvement in Type 2 Diabetes Mellitus Combined with Cerebral Stroke

J Clin Lab Anal. 2017 Mar;31(2):e22033. doi: 10.1002/jcla.22033. Epub 2016 Aug 8.


Background: We aimed to investigate the correlations between ACE2 polymorphisms and type 2 diabetes mellitus (T2DM) combined with cerebral stroke (CS).

Methods: A total of 346 patients treated or hospitalized in our hospital were enrolled, including 181 cases without cerebrovascular complications (T2DM group) and 165 cases combined with CS (T2DM + CS group); 284 healthy individuals were selected as the control group. PCR-RFLP and ELISA were used to analyze ACE2 G8790A polymorphisms and serum ACE2 levels, respectively.

Results: Significant differences were observed in the genotype/allele frequency of ACE2 G8790A between the T2DM + CS and control groups, and the T2DM and T2DM + CS groups, and in the genotype frequency of ACE2 G8790A between the T2DM and the control groups. The A allele may increase the risk of T2DM combined with CS. The AA genotype may also increase the risk of T2DM combined with CS (OR = 3.733, 95%CI = 2.069-6.738; OR = 3.597, 95%CI = 1.884-6.867). Serum ACE2 levels showed statistically significant differences among the groups. Systolic pressure and diastolic pressure were protective factors of T2DM combined with CS.

Conclusion: The ACE2 G8790A polymorphism in T2DM patients was correlated with CS, and the A allele might be a risk factor of T2DM combined with CS.

Keywords: ACE2; allele frequency; cerebral stroke; gene polymorphism; regression analysis; type 2 diabetes mellitus.

MeSH terms

  • Angiotensin-Converting Enzyme 2
  • Blood Pressure
  • Diabetes Mellitus, Type 2 / blood
  • Diabetes Mellitus, Type 2 / genetics*
  • Enzyme-Linked Immunosorbent Assay
  • Gene Frequency / genetics
  • Genotype
  • Humans
  • Peptidyl-Dipeptidase A / blood*
  • Peptidyl-Dipeptidase A / genetics*
  • Polymorphism, Restriction Fragment Length
  • Polymorphism, Single Nucleotide / genetics*
  • Risk Factors
  • Stroke / blood
  • Stroke / genetics*


  • Peptidyl-Dipeptidase A
  • ACE2 protein, human
  • Angiotensin-Converting Enzyme 2