维持性血液透析患者心踝血管指数与血清瘦素和脂联素比值的相关性

目的 探讨瘦素、脂联素及瘦素与脂联素比值(L/A)与维持性血液透析患者动脉粥样硬化的关系.方法 选择维持性血液透析患者(血液透析组)60例和正常对照组30例,采用双抗体夹心酶联免疫吸附技术测定血清脂联素及瘦素,采用血压脉搏测量装置CAVI-VaSera VS-1000检测心踝血管指数(CAVI).结果 血清瘦素、脂联素在血液透析组显著高于正常对照组[分别为(7.99±1.21)μg/L与(4.18±1.10)μg/L,(15.12±4.68)mg/L与(8.58±2.23)mg/L,P均＜0.01].CAVI≥9.0患者血清瘦素显著高于CAVI＜9.0患者[(8.45±1.09)μg/L与(6.97±1.32)μg/L],而脂联素则显著降低[(10.75±3.32)mg/L与(16.34 ±4.57)mg/L](P均＜0.05).L/A在CAVI≥9.0组显著升高(0.85±0.12与0.48±0.08).多因素逐步回归分析显示影响CAVI的因素有年龄、糖尿病、瘦素、L/A,其中L/A的影响因素最大.结论 维持性血液透析患者血清瘦素、脂联素升高,随着透析患者动脉硬化的进展,脂联素反而下降,升高瘦素和降低脂联素可能参与了血液透析患者动脉粥样硬化的发生、发展.

Relationship of leptin-to-adiponectin ratio with cardio ankle vascular index in maintenance hemodialysis patients

Objective To investigate the association of serum leptin(LEP),adiponectin(ADPN)and leptin-to-adiponectin(L/A)ratio with cardio ankle vascular index(CAVI)in the patients maintaining hemodialysis(MHD).Methods Sixty MHD patients and thirty healthy volunteers were involved in the study.The levels of LEP and ADPN were determined by ELISA.Atherosclerosis was evaluated by the cardio ankle vascular index which was measured by using a VaSera VS-1000 machine.Results The levels of serum LEP and ADPN in hemodialysis patients were significantly higher than those in healthy controls([7.99 ± 1.21]μg/L vs.[4.18 ± 1.10]pg/L)and([15.12 ± 4.68]mg/L vs.[8.58 ± 2.23]mg/L),respectively,P ＜ 0.01].With the progression of atherosclerosis,the levels of serum LEP increased significantly,while the levels of serum ADPN decreased significantly.The L/A ratio was dramatically increased in patients with atherosclerosis.Multiple stepwise regression analysis showed that independent risk factors associated with CAVI include age,diabetes,levels of LEP and L/A ratio.Conclusion The increased serum LEP level and decreased serum ADPN level may be involved in the progression of atherosclerosis in MHD patients.The L/A ratio may be a powerful independentpredictor for CAVI in MHD patients.