The correlation of serum adiponectin,C-reactive protein levels and carotid atherosclerosis plaque in patients with acute cerebral infarction

Objective To investigate the correlation of serum adiponectin (APN),C-reactive protein (CRP) levels and carotid atherosclerosis plaque in patients with acute cerebral infarction (ACI).Methods Sixty patients with ACI (ACI group) were diagnosed by head CT and MRI examination.And sixty cases of healthy check-up were as control group.The serum APN and CRP were examined by double antibody sandwich enzyme linked immunosorbent assay method,and carotid atherosclerosis was examined by ultrasound.Results The serum APN and CRP levels in ACI group were (4.36 ± 2.54),(8.93 ± 2.89)mg/L,and in control group were (8.43 ± 3.51),(1.12 ± 0.52) mg/L.The serum APN level in ACI group was significantly lower than that in control group,and the serum CRP level in ACI group was significantly higher than that in control group (P ＜ 0.05).In ACI group,the serum APN level after treatment was significantly increased compared with that before treatment,the serum CRP level after treatment was significantly decreased compared with that before treatment.The differences were (6.44 ± 2.31) and (4.10 ± 0.72) mg/L respectively.The rate of carotid atherosclerosis in ACI group was 78.33％ (47/60),and the rate of carotid atherosclerosis plaque was 71.67％(43/60).The stable plaque was in 13 cases and instability plaque was in 30 cases.The rate of carotid atherosclerosis in control group was 26.67％(16/60),and the rate of carotid atherosclerosis plaque was 13.33％(8/60).The stable plaque was in 6 cases and instability plaque was in 2 cases.The differences between the two groups had statistical significance (P ＜ 0.05).In ACI group,the serum APN and CRP levels in ACI without carotid atherosclerosis plaque were (6.89 ± 2.37) and (5.41 ± 1.38)mg/L,in ACI with carotid atherosclerosis plaquewere (3.28 ± 1.99) and (9.42 ±3.70) mg/L.Carotid atherosclerosis plaque and serum APN level showed negative correlation (r =-0.76,P ＜ 0.05),and serum CRP level was positively correlated (r =0.81,P ＜ 0.05).The serum APN and CRP levels in ACI with stable plaque were (4.32 ± 2.14) and (6.65 ± 2.69) mg/L,in ACI with instability plaque were (2.11 ± 1.35) and (10.11 ± 3.82) mg/L.Carotid artery plaque stability and serum APN level showed negative correlation (r =-0.69,P ＜ 0.05),and serum CRP level was positively correlated (r =0.77,P＜ 0.05).Conclusions The occurrence of ACI is closely related to carotid atherosclerotic plaque.The serum APN level in ACI patients is significantly lower than that in normal crowd,but serum CRP level in ACI patients is significantly higher than that in normal crowd.The rate of carotid atherosclerosis is significantly increased,most of which is instability plaque.Carotid atherosclerosis plaque and serum APN level has negative correlation,and serum CRP level is positively correlated.Carotid artery plaque stability and serum APN level has negative correlation,and serum CRP level is positively correlated. Key words: Infarction,middle cerebral artery;  Adiponectin;  C-reactive protein;  Carotid artery diseases