不同透析剂量对腹膜透析患者瘦素水平及营养状态的影响

目的:探讨不同透析剂量对腹膜透析(腹透)患者血清和腹透液中瘦素水平及营养状态的影响.方法:对49例稳定腹透1 a以上的患者,根据其透析剂量分为3组:低剂量(4 L/d)组14例,中等剂量(6 L/d)组16例和标准剂量(8 L/d)组19例.透析前后采用ELISA法测定血清及腹透液瘦素水平,同时检测血清白蛋白、转铁蛋白及总胆固醇,并进行主观全面营养评估(SGA).结果:3组患者透析前后血清及腹透液瘦素水平变化值差异有统计学意义(F=2.362、2.879,P均＜0.05);低剂量组高于中等剂量组和标准剂量组(P＜0.01),而中等剂量组与标准剂量组比较差异无统计学意义(P＞0.05).透析前后血清与腹透液瘦素水平变化值呈正相关(r=0.621,P＜0.01).低剂量组发生营养不良11例(78.6%),标准剂量组10例(62.5%),中等剂量组12例(63.1%),3组营养不良发生率差异有统计学意义(χ2=7.230,P＜0.001),中等剂量组与标准剂量组营养不良发生率均低于低剂量组(P＜0.01).SGA评分与透析前后血清和腹透液瘦素水平变化值呈正相关(r=0.552、0.411,P均＜0.05).血清瘦素水平变化值与白蛋白呈负相关(r为-0.504.P＜0.05),而与转铁蛋白及总胆同醇无相关性(r分别为0.126,0.201,P均＞0.05).结论:瘦素在腹透患者营养不良的发生中起重要作用,充分的腹膜透析可有效清除瘦素,中等剂量与标准剂量的腹透均可较好地维持患者的营养状态.

Effects of different dosage of peritoneal dialysate on leptin level and nutrition status of peritoneal dialysis patients

Aim:To evaluate the effect of different dosage of peritoneal dialysate on serum and dialysate leptin level and nutrition status of peritoneal dialysis patients.Methods:A total of 49 patients treated with peritoneal dialysis for more than one year were divided into three groups according to the dosage of peritoneal dialysis:low-dose(4 L/d) dialysis group(n=14),moderate-dose(6 L/d) dialysis group(n=16),and standard-dose(8 L/d) dialysis group(n=19).Serum and dialysate leptin levels were detected by ELISA with ...