科研之友
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摘要
Background: Non-enzymatic glycation is a process, which leads to the formation of advanced glycation endproducts. These compounds are involved in the development of diabetic microvascular complications. Fructosamine-3-kinase (FN3K) is an intracellular enzyme that phosphorylates fructosamines resulting in fructosamine-3-phosphate, which subsequently decomposes to inorganic phosphate, 3-deoxyglucasone and the unmodified amine. Recently, the G900C (rs1056534) single nucleotide polymorpism (SNP) of the FN3K gene was found to be associated with the enzyme activity. Objective/Design: The aim of the study was to investigate the impact of the SNP on clinical and biochemical features and microvascular complications of type 2 diabetes. Patients: A total of 859 type 2 diabetic subjects and 265 healthy controls were enrolled in the study and were genotyped with PCR-RFLP method. Results: Genotype frequencies were as follows, CC: 5%, GC: 54%, GG: 41% in subjects with type 2 diabetes and CC: 6%, GC: 51%, GG: 43% in the controls. Diabetic subjects with the CC variant had lower HbA(1c) levels compared with the others (CC: 6.48 +/- 0.05%; GC: 7.66 +/- 0.09%; GG: 7.68 +/- 0.09%; p < 0.001). Furthermore, in case of the CC allelic variant type 2 diabetes was diagnosed at a later age than in case of GC or GG variants (CC: 56.0 +/- 1.90 years; GC: 52.0 +/- 0.62 years; GG: 50.1 +/- 0.71 years; p < 0.05). Logistic regression analysis did not reveal association between CC genotype and diabetic complications, such as diabetic nephropathy, neuropathy and retinopathy (OR = 1.036, CI 95% 0.652-1.647, p = 0.880; OR = 0.985, CI 95% 0.564-1.721 p = 0.958; OR = 1.213, CI 95% 0.470-3.132, p = 0.690, respectively). Conclusion: We conclude that the G900C polymorphism associates with the level of HbA(1c) and the onset of the disease, but not with either of the diabetic microvascular complications.
- 出版日期2010-3
