Brain-specific NSE and S-100 proteins in umbilical blood after normal delivery

被引:26
作者
Amer-Wåhlin, I
Herbst, A
Lindoff, C
Thorngren-Jerneck, K
Marsál, K
Alling, C
机构
[1] Univ Lund Hosp, Dept Obstet & Gynecol, S-22185 Lund, Sweden
[2] Univ Lund Hosp, Dept Pediat, S-22185 Lund, Sweden
[3] Univ Lund Hosp, Dept Med Neurochem, S-22185 Lund, Sweden
关键词
S-100; NSE; haemolysis; neonatal; umbilical blood; delivery;
D O I
10.1016/S0009-8981(00)00408-3
中图分类号
R446 [实验室诊断]; R-33 [实验医学、医学实验];
学科分类号
1001 ;
摘要
Background: To determine normal blood levels of brain-specific proteins S-100 and neuron specific enolase (NSE) in healthy newborns and their mothers following uncomplicated birth. Methods: Umbilical artery and vein blood and maternal venous blood was collected at 112 consecutive uncomplicated deliveries. Venous blood samples were taken from 18 of the neonates 3 days after birth. S-100 and NSE were analyzed quantitatively by double antibody immunoluminometric assay (Sangtec Medical AB. Sweden). Results: Compared with adults, healthy neonates had higher levels of both S-100 and NSE. For S-100, median levels (range) were 1.10 mug/l (0.38-5.50 mug/l) and 0.98 mug/l (0.43-2.70 mug/l) in umbilical artery and vein, respectively. For NSE, median levels (range) in umbilical artery blood and vein were 27 mug/l (10-140 mug/l) and 10.75 mug/l (8.80-greater than or equal to 200 mug/l) respectively. The maternal venous blood levels of both S-100 and NSE were significantly lower than in their infants. At 3 days of life, neonatal venous levels of the proteins were still high: S-100, 0.48-9.70 mug/l; NSE, 17-greater than or equal to 200 mug/l. In contrast to adults, haemolysis affected the S-100 levels in umbilical blood significantly. Conclusion: Concentrations of both S-100 and NSE in blood are greater in newborns after normal birth than in healthy adults. The higher levels in umbilical artery blood than in umbilical vein blood ale consistent with a fetal origin of these proteins. High levels in venous blood at 3 days of life suggest that the high levels at birth are not related to the birth process but reflect a high activity of these proteins during fetal development. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:57 / 63
页数:7
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