Pearson F C, Dubczak J, Weary M, Bruszer G, Donohue G
J Clin Microbiol. 1985 Jun;21(6):865-8. doi: 10.1128/jcm.21.6.865-868.1985.
A total of 120 Limulus amoebocyte lysate (LAL) determinations were made on plasma obtained from normal, healthy human blood donors. Results demonstrated a mean endotoxin level in blood of 0.02 to 1.57 pg/ml. The amount of Escherichia coli endotoxin added to human plasma samples can be quantitated by both nephelometry and turbidimetry. Endotoxin-spiked samples were shown to be significantly different from unspiked samples. When plasma samples were collected from 45 patients hospitalized at three centers, a strong association was demonstrated between a positive Limulus amoebocyte lysate assay and a septic condition. Sensitivity, specificity, and false-positive and false-negative rates for the Limulus amoebocyte lysate assay as a diagnostic test for gram-negative bacteremia were estimated.
对从正常、健康的人类献血者采集的血浆进行了总共120次鲎试剂(LAL)检测。结果显示血液中的内毒素平均水平为0.02至1.57 pg/ml。添加到人血浆样本中的大肠杆菌内毒素量可以通过比浊法和浊度法进行定量。添加内毒素的样本与未添加内毒素的样本有显著差异。当从三个中心住院的45名患者采集血浆样本时,鲎试剂检测呈阳性与脓毒症状态之间存在很强的关联。估计了鲎试剂检测作为革兰氏阴性菌血症诊断试验的敏感性、特异性、假阳性率和假阴性率。