Umbilical vein interleukin-6 levels in very low birth weight infants developing intraventricular hemorrhage
Division of Neonatology, Department of Pediatrics, University of Medicine and Dentistry of New Jersey-Robert Wood Johnson Medical School, One Robert Wood Johnson Place, MEB 312C, New Brunswick, NJ 08903-0019, USA. Brain and Development
(Impact Factor: 1.88).
11/2005; 27(7):483-7. DOI: 10.1016/j.braindev.2004.12.003
To assess the relationship between perinatal infection/inflammation as reflected by umbilical vein interleukin-6 (IL-6) levels and the development of periventricular-intraventricular hemorrhage (IVH) in very low birth weight (VLBW) infants, we tested the hypothesis that VLBW infants who develop IVH have higher concentrations of IL-6 in an umbilical vein sample compared to infants without IVH. An inception cohort of 69 VLBW infants was followed from birth until discharge or death to determine the development of IVH by serial neuroultrasounds. Umbilical vein IL-6 levels were measured using commercially available ELISA kit (Endogen Laboratories, Woburn, MA) and compared in IVH and control cohorts. Twenty-two (32%) infants developed IVH, including 18 (82%) with grade I or II and 4 (18%) with grade III or IV. One of these infants also developed periventricular leukomalacia. The umbilical vein IL-6 levels were significantly elevated in infants with IVH with median value of 87 pg/ml (25th percentile value 30 pg/ml and 75th percentile value 310 pg/ml) compared with infants without IVH, with a median value of 0 pg/ml (25th percentile value 0 pm/ml and 75th percentile value 4 pg/ml) (P = 0.007). Umbilical vein IL-6 levels are elevated in neonates who subsequently develop IVH.
Available from: Lois C Howland
- "20. Kassal et al. (2005). 21. "
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ABSTRACT: A growing body of literature supports the relationship of maternal inflammation with preterm birth and adverse neonatal outcomes, including infection and central nervous system (CNS) dysfunction. Mediators of inflammation, most notably proinflammatory cytokines, have been implicated as having an association with and perhaps playing a causal role in the pathogenesis, leading to adverse neonatal outcomes. Even though the association of cytokines with early adverse neonatal outcomes has been actively pursued as a line of research, there has been little integration of diverse findings across studies. Therefore, the purpose of this systematic review was to appraise and classify empirical evidence from human studies for the association of cytokine levels in blood (serum, plasma, or cells; maternal, cord, or neonatal) with two adverse early outcomes in preterm infants: early infection and increased risk of neurologic damage. The review revealed that the proinflammatory cytokines most frequently linked with sepsis are in the interleukin (IL) 1 family as well as tumor necrosis factor alpha (TNF-alpha) and IL-6. The proinflammatory cytokines most frequently linked to neurologic insult in the reviewed studies were IL-1beta, IL-6, and IL-8. In all cases where IL-1beta was studied, the levels were increased when there was neurologic insult. A better understanding of the relationship of these inflammatory substances with these adverse conditions is needed for the future development of maternal and neonatal biobehavioral nursing research.
Biological Research for Nursing 12/2009; 11(4):377-86. DOI:10.1177/1099800409344619 · 1.43 Impact Factor
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ABSTRACT: The mortality rate from sepsis is high and the risk of sepsis increases in prematurity in proportion to the decrease in birth weight.
The authors report the assessment of serum interleukin-6 levels in 12 term, at-risk newborn infants after birth and 60 VLBW neonates after detection of non-specific signs of infection or sepsis, treated in NICU at the Semmelweis University, 1st Department of Obstetrics and Gynecology in 2005-2006. The serum IL-6 level with a rapid test (Milenia Quickline IL-6 and PicoScan system) was investigated. The simultaneous assessment of C-reactive protein levels was analysed as well.
The assessment of serum interleukin-6 and CRP levels for the early diagnosis of sepsis can be established or ruled out. The sensitivity of serum IL-6 level assessment was 100%. There were no false negative cases. The positive predictive value was 93%. There was a significant difference between the sepsis and infection group of VLBW infants in the serum Il-6 levels ( p = 0.048), and between the infection and non-infection groups in the interleukin-6 levels ( p < 0.005).
In comparing the diagnostic value of IL-6 measurement in VLBW infants with signs of infection to the diagnostic methods currently in use, results showed that a combination of early assessment of IL-6 and CRP seems to increase diagnostic accuracy in attempting to differentiate between septic and nonseptic patients. Such increased accuracy will decrease neonatal morbidity as well as the financial cost of treatment.
Orvosi Hetilap 08/2007; 148(34):1609-14. DOI:10.1556/OH.2007.27991
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ABSTRACT: Perinatal infections exert considerably negative effects on morbidity and mortality of newborns.
elevations of cytokine IL levels may be used as a marker of early-onset neonatal infections. TARGETS: to establish relationships between elevated IL 6 cytokine levels and neonatal morbidity (cranial and pulmonary).
examinations of the umbilical blood for IL 6 values in 392 newborns weighing under 1500 g treated in Ceské Budĕjovice at the Intensive Care Unit and Unit of Intensive Care and Resuscitation.
a statistically significant relationship was demonstrated between elevations of cytokine IL 6 levels and pulmonary morbidity in newborns.
the authors recommend examination of cytokine IL levels in the umbilical blood with a possibility to acquire the result within 2 hours after the delivery, which makes neonatologists possible to initiate goal-directed antibiotic therapy.
Neuro endocrinology letters 10/2009; 30(4):535-9. · 0.80 Impact Factor
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