慢性肾功能衰竭血液透析前后P物质和心钠素水平比较

目的 了解慢性肾功能衰竭（CRF）患者血浆P物质（SP）、心钠素（ANP）含量变化与肾功能的关系。方法 采用放射免疫分析法检测正常对照组（50例）及CRF组（30例）血液透析（血透）前后SP、ANP，同时测定血清肌酐（Cr）。结果 血透前SP显著高于正常对照组（t=2．124，P〈0．01），血透后SP高于血透前（t=2．224，P〈0．05）；SP血透前与Cr呈正相关（r=0．6612，P〈0．05），SP血透后与Cr呈负相关（r=-0．4648，P〈0．05）；血透前ANP显著高于对照组（t=2．824，P〈0．01），血透后ANI，显著低于血透前（t=2．221，P〈0．05），ANP血透前后与Cr呈正相关（r=0．8225，P〈0．05）；血透前后SP变化值与ANP变化值呈负相关（r=-0．4811，P〈0．05）。结论 CRF患者血浆SP、ANP含量的变化与肾功能的改变有较明显的相关性。

A comparision between plasma P substance and atrial natriuretic peptide in patients with chronic renal failure

Objective To investigate the relationship between plasma P substance(SP),atrial natriuretic peptide(ANP) and renal function in chronic renal failure(CRF).Methods SP and ANP were measured by radioi m munoassay in normal control and CRF before and after hemodialysis(HD),serum creatinine(Cr) was determined simultaneously.Results SP before HD was significantly higher than that of control(P<0.01) and significantly lower than that after HD(P<0.05).There was a positive correlation between SP before HD and Cr(r=0.6612,P<0.05),a negative correlation between SP after HD and Cr(r=-0.4648,P<0.05);ANP before HD was significantly higher than that of control(P<0.05).There were positive correlations between Cr and ANP before and after HD(r=0.8225,P<0.05);There was a negative correlation between the quantitative difference of SP and that of ANP before and after HD(r=-0.4811,P<0.05).Conclusion There is a significant correlation between the change of plasma SP,ANP concentrations and Cr level in CRF patients.