Résumé
ObjectiveTo investigate the expression levels of the red blood cell surface receptors and oxidative stress of patients with hemodialysis,evaluate the immune function of the red blood cells,and identify the cause of infection and high prevalence of tumor in patients with hemodialysis.MethodsForty-five long-term hemodialysis patients from our blood purification center was chosen as the treatment group.Forty-five healthy individuals conducting physical examination at the same period was chosen as the control group.The flow cytometric method was used to detect CD35 surface receptors numbers of the red blood cell.The red blood cells wreath experiments were used to measure the adhesive function.The ELASA method was used to test the changes of oxidative stress index:SOD,MDA,CAT and GSH-PX.ResultsCompared to the normal control group,the treatment group had significantly lower levels of CD35 [ ( 28.62 ±6.95 ) AU vs.( 19.71 4.89) AU,t =5.441,P ＜0.01 ],impaired adhesive function red blood cells[ (0.63 ±0.07) vs.(0.44 ±0.04),t =0.41,P ＜0.05].For the levels of oxidative stress index,MDA [ ( 6.18 ± 0.16 ) μmol/L vs ( 13.47 ± 0.39 ) μmol/L ] was significantly higher in the treatment group than in the normal control group( t =13.14,P ＜ 0.05 ),and SOD( 34 202.00 ± 1634.00) U/( g · Hb),CAT ( 21.70 ± 0.84 ) U/ml and GSH-PX ( 444.00 ± 10.31 ) U/ml were significantly lower in the treatment group than in the normal control group [ SOD:(24 652.00 ± 2179.00)U/( g · Hb),CAT:( 14.80 ± 1.13 ) U/ml,GSH-PX:( 217.89 ± 13.70 ) U,t =20.246,9.496,27.195,P ＜0.05 ].ConclusionPatients with hemodialysis had lower numbers of red blood cell surface receptors CD35 and impaired immune function of adhesion,and higher oxidative stress levels.This may be the cause of infection and tumor of patients with hemodialvsis.