Association of hematological parameters on polymorphisms of HFE gene (rs1800562, rs1800730, rs1799945) in non-alcoholic fatty liver disease

Abstract

Background. Non-alcoholic fatty liver disease and its associated metabolic syndrome are one of the most common chronic liver diseases among adults worldwide. One of the reasons associated with unfavorable course may be an abnormalities of iron metabolism associated with of fatty liver degeneration, caused by the presence of a certain polymorphic locus of the HFE gene. Aim. Study the dependence of changes in hematological parameters on HFE gene polymorphisms among patients with non-alcoholic fatty liver disease with metabolic syndrome and normal body weight. Materials and methods. The study included 173 patients, of which 85 people had NAFLD and normal body weight, 88 people had NAFLD and metabolic syndrome. All patients underwent genotyping of the rs1800562, rs1800730, rs1799945 polymorphisms of the HFE gene, as well as assessment of hematological parameters. Statistical analysis was performed out using the Statistica 10 package. Results. Patients with NAFLD and normal body weight were characterized by the presence of the AT genotype of the rs1800730 polymorphism and the CG and GG genotypes of the rs1799945 polymorphism. In patients with NAFLD and metabolic syndrome, genotypes AA and TT of the rs1800730 polymorphism and CC of the rs1799945 polymorphism were more common. Changes in hematological parameters were noted in both groups. In patients with normal body weight, an increase in ESR and monocytosis was observed. Patients with metabolic syndrome had anemia, increased ESR and pancytopenia. Conclusion. Patients with NAFLD and normal body weight are characterized by the AT genotypes of the rs1800730 polymorphism and the CG and GG genotypes of the rs1799945 polymorphism. In patients with metabolic syndrome, variants of the AA polymorphism rs1800730 and CC polymorphism rs1799945 are more common. The rs1800562 polymorphism did not show significant differences in prevalence when compared between groups. In patients with normal body weight, changes in hematological parameters are less pronounced, an increase in ESR and monocytosis is noted. In patients with metabolic syndrome, on the contrary, disturbances in hematological parameters are more pronounced; panleukopenia, increased ESR, and anemia are noted. The changes we discovered may be evidence that in patients with NAFLD and normal body weight, steatosis and chronic inflammation predominated, and in patients with metabolic syndrome and NAFLD, steatohepatitis, which has a negative effect on organ systems. One of the risk factors for its development was the AA genotype of the rs800730 polymorphism and the CC genotype of the rs1799945 polymorphism.