Schrama A J J, de Beaufort A J, Poorthuis B J H M, Berger H M, Walther F J
Neonatology Unit, Department of Pediatrics, Leiden University Medical Center, Leiden, The Netherlands.
J Perinatol. 2008 Apr;28(4):291-6. doi: 10.1038/sj.jp.7211929. Epub 2008 Jan 17.
To investigate secretory phospholipase A(2) (sPLA(2)) activity in neonatal sepsis.
Plasma sPLA(2) activity, C-reactive protein (CRP) concentration, leukocyte count and immature/total neutrophil (I/T) ratio were assessed in a group of 156 infants admitted for neonatal intensive care, who were classified as documented sepsis (n=24), suspected infection (n=77) and controls (n=55). Interleukin-6 (IL-6) concentrations were assessed in a subgroup (n=29).
sPLA(2) activity, CRP concentration and I/T ratio were higher in sepsis than in suspected infection or control groups. sPLA(2) activity advanced with increasing CRP, I/T ratio and IL-6 was highest in infants with respiratory distress syndrome (RDS). Compared to CRP, sPLA(2) had equal sensitivity and lower specificity. Compared to I/T ratio, sensitivity and specificity of sPLA(2) were higher.
Plasma sPLA(2) activity is increased in neonatal sepsis and highest in infants with RDS. Further studies should assess the potential of sPLA(2) inhibition in neonatal sepsis.
研究新生儿败血症中分泌型磷脂酶A2(sPLA2)的活性。
对156名入住新生儿重症监护病房的婴儿进行血浆sPLA2活性、C反应蛋白(CRP)浓度、白细胞计数及未成熟/总中性粒细胞(I/T)比值的评估,这些婴儿被分为确诊败血症组(n = 24)、疑似感染组(n = 77)和对照组(n = 55)。对一个亚组(n = 29)进行白细胞介素-6(IL-6)浓度评估。
败血症组的sPLA2活性、CRP浓度和I/T比值高于疑似感染组或对照组。sPLA2活性随CRP升高而升高,I/T比值和IL-6在患有呼吸窘迫综合征(RDS)的婴儿中最高。与CRP相比,sPLA2具有相同的敏感性和较低的特异性。与I/T比值相比,sPLA2的敏感性和特异性更高。
新生儿败血症时血浆sPLA2活性升高,在患有RDS的婴儿中最高。进一步研究应评估抑制sPLA2在新生儿败血症中的潜力。