摘要
目的 :血浆脑钠素氨基末端前体 [N -terminalpro -brainnatriureticpeptide ,NT - proBNP(1- 76 ) ) ]和脑钠素 (brainnatriureticpeptide ,BNP)来自于同一前体 ,前者水平升高比后者更能反应左室功能不全的程度。本文旨在研究冠心病急性心肌梗死、不稳定型心绞痛以及糖尿病患者血浆NT -ProBNP(1- 76 )水平的变化 ,以探讨NT -ProBNP(1- 76 )在上述疾病过程中的意义。方法 :清晨空腹抽血 ,分离血浆 ,采用放射免疫分析检测血浆NT -ProBNP(1- 76 )含量。结果 :健康人血浆NT - proBNP(1- 76 )含量为 (36 0 8± 5 7 3)pg/ml,不同性别间无明显差异。急性心肌梗死和不稳定型心绞痛患者血浆NT - proBNP(1- 76 )水平分别为 (5 5 4 1± 195 9)和 (5 2 5 7± 199 1)pg/ml,明显高于健康人 (均为P <0 0 1) ,并且急性心肌梗死患者在PTCA术后 12h血浆NT - proBNP(1- 76 )水平较术前明显升高 (P <0 .0 5 )。 2型糖尿病患者血浆NT -proBNP(1- 76 )含量也明显高于健康对照组 (5 5 2 6± 14 1 9pg/mlvs 36 0 8± 5 7 3,P <0 0 1)。 结论 :急性心肌梗死、不稳定型心绞痛以及 2糖尿病患者血浆NT -proBNP(1- 76 )含量明显升高 ,提示NT - proBNP(1- 76 )可作为上述疾病重要诊断指标之一。
Objective Determination of plasma N-terminal pro-brain natriuretic peptide [NT-proBNP (1-76)] levels is useful for the diagnosis of heart failure. Present study was to investigate the significance of changes of plasma NT-proBNP (1-76) levels in patients with acute myocardial infarction (AMI), unstable angina pectoris (UAP) and non-insulin-dependent diabetes (NIDD). Methods Plasma NT-proBNP (1-76) levels were determined with RIA in 32 patients with AMI, 27 patients with UAP, 12 patients with NIDD and 20 controls. Moreover, 16 of the 32 AMI patients underwent percutancous transluminal coroary angioplasty (PTCA) and plasma (1-76) levels were again determined 12hr before and 12hr after the procedure. Results The plasma NT-proBNP (1-76) levels in controls were 360.8±57.3 pg/ml with no significant difference between the sexes. In patients with AMI, UAP and NIDD, NT-proBNP (1-76) levels were 554.1±195.9pg/ml, 525.7±199.1pg/ml and 552.6±141.9pg/ml respectively; all of them were significantly higher than those in controls (P<0.01 respectively). Furthermore, the NT-proBNP (1-76) levels in 16 AMI patients increased from 563.1±190.1 to 774.7±238.9pg/ml (P<0.05) 12 hours after PTCA. However, NT-proBNP (1-76) levels did not differ statistically among AMI, UAP and NIDD patients (P>0.05). Conclusion The plasma NT-proBNP (1-76) levels in patients with AMI, UAP and NIDD were increased significantly and the result suggested that NT-proBNP (1-76) might be a useful risk marker for these diseases.
出处
《放射免疫学杂志》
CAS
2004年第5期332-334,共3页
Journal of Radioimmanology
基金
国家重点基础研究发展规划项目 ( 973 )基金 (G2 0 0 0 0 5 690 5 )资助
