Detection of Apolipoprotein E Gene Polymorphism and Blood Lipid Level in Hemodialysis Patients

Yuxin Wang, Ning Wang, Yuanshan Lu, Qing Yu, Lina Zhou, Qinjun Xu


Background: The aim was to investigate the clinical characteristics of lipid metabolism and the effect of apolipoprotein E (ApoE) gene polymorphism on lipid metabolism in hemodialysis patients.

Methods: The serum levels of total cholesterol (TC), triglyceride (TG), high-density lipoprotein cholesterol (HDLC), low-density lipoprotein cholesterol (LDLC), ApoA1, ApoB, ApoE and lipoprotein Lp(a) were detected by polymerase chain reaction-restriction fragment length (PCR-RFLP).

Results: The level of serum TG was significantly increased and the level of HDLC was significantly decreased in hemodialysis patients. Serum TG level was 33% higher than normal, and HDLC was 10.4% less than normal. The correlation analysis showed that TG level was significantly correlated with serum albumin level and extracorporeal circulation blood flow during dialysis. HDLC was significantly correlated with KT/V. The incidence of hypertension in hemodialysis patients was 73.6% and cardiovascular disease was 25%. The level of TG in the cardiovascular disease group was significantly higher than that in the non-cardiovascular disease group, and there was no significant difference between the hypertensive group and the non-hypertensive group. ApoE gene polymorphism test showed that the frequency of ApoE genotype epsilon/3 and allele epsilon3 was the highest in hemodialysis patients, and the levels of TC, TG and LDLC were higher in ApoE genotype epsilon3/4 + epsilon4/4.

Conclusion: The levels of serum TG and ApoB were significantly increased in patients with hemodialysis, and HDLC and other indexes were significantly decreased. The level of TG in patients with cardiovascular complications was significantly higher than in patients without complications. TG level was significantly correlated with serum albumin level and extracorporeal circulation blood flow during dialysis. HDLC was significantly correlated with KT/V. Hemodialysis patients who had ApoE allele epsilon4 are prone to lipid metabolism disorders.

J Clin Med Res. 2017;9(8):695-700


Hemodialysis; Lipid; Apolipoprotein E; Gene polymorphism

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