IMMUNOREACTIVE ENDOTHELIN IN HUMAN-PLASMA - MARKED ELEVATIONS IN PATIENTS IN CARDIOGENIC-SHOCK

IMMUNOREACTIVE ENDOTHELIN IN HUMAN-PLASMA - MARKED ELEVATIONS IN PATIENTS IN CARDIOGENIC-SHOCK
复制标题

DOI:
10.1016/0006-291x(89)92636-3
复制
发表时间:
1989-06-15
影响因子:
3.1
通讯作者:
STEWART, DJ
STEWART, DJ
中科院分区:
生物学4区
文献类型:
--
作者:
CERNACEK, P;STEWART, DJ

文献摘要

被引文献

相似文献

内皮素 (ET) 是最近发现的一种内皮衍生肽,可能是迄今为止发现的最有效的血管收缩剂。尽管人们对体内循环 ET 可能的全身作用很感兴趣,但没有关于生理条件下或心血管疾病中 ET 水平的数据。我们使用的放射免疫测定法足够灵敏,可以检测 14 名健康志愿者的 SepPak 提取血浆中的 ET 免疫反应性 (irET),其浓度范围为 0.03 至 0.69 pg/ml(平均 0.26 .+-. 0.236 pg/ml)。 5 名稳定型充血性心力衰竭患者的 ET 水平与正常值没有显着差异 (0.46 .+-. 0.36 pg/ml)。然而,6 名心源性休克患者 (3.65 .+-. 1.14 pg/ml)、6 名慢性透析患者 (1.05 .+-. 0.41) 和 4 名肺动脉高压患者 (1.52 .+-. 0.45) 中 irET 显着升高 (p < 0.001)。目前的结果表明,循环 irET 浓度对心血管状况的变化有反应,因此支持 ET 作为血管活性激素的潜在作用。
Endothelin (ET) is a recently discovered, endothelium-derived peptide that may be the most potent vasoconstrictor yet identified. Although there is much interest in the possible systemic actions of circulating ET in vivo, there is no data on ET levels under physiological conditions, or in cardiovascular disease. We used a radioimmunoassay that was sufficiently sensitive to detect ET immunoreactivity (irET) in the SepPak-extracted plasma from 14 healthy volunteers in a range from 0.03 to 0.69 pg/ml (mean 0.26 .+-. 0.236 pg/ml). ET levels were not significantly different from normal in 5 patients with stable congestive heart failure (0.46 .+-. 0.36 pg/ml). However, irET was increased markedly in 6 patients in cardiogenic shock (3.65 .+-. 1.14 pg/ml), and (less so) in 6 patients on chronic dialysis (1.05 .+-. 0.41) and in 4 with pulmonary hypertension (1.52 .+-. 0.45) (p < 0.001). The present results suggest that circulating irET concentration is responsive to altered cardiovascular conditions, and therefore support a potential role for ET as a vasoactive hormone.