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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Frigen II improves the reliability of measurement of interleukin-1 related substances in amniotic fluid.

BACKGROUND: To investigate the role of interleukin-1 related substances in amniotic fluid in normal term labor without intrauterine infection. METHODS: Amniotic fluid samples were collected from forty-one patients with various backgrounds. A novel pre-assay treatment using Frigen II was introduced to improve the recovery rates of cytokines, i.e., interleukin-1alpha, interleukin-1beta and interleukin-1 receptor antagonist, prior to ELISA assay. Urine samples from newborn infants were also tested. RESULTS: The concentrations of interleukin-1alpha, interleukin-1beta and interleukin-1ra were significantly higher in samples from normal vaginal delivery. The higher levels of interleukin-1alpha were also observed in samples from preterm labor without infection. Preterm infants produced more of interleukin-1 receptor antagonist in urine compared with term infants. CONCLUSIONS: This study provides evidence of the possible involvement of interleukin-1 related substances in labor without signs of infection. The data from newborn urine suggests that amniotic interleukin-1ra originates from the fetus. However, amniotic fluid interleukin-1alpha and interleukin-1beta may be derived from maternal tissue, such as decidua.[1]

References

  1. Frigen II improves the reliability of measurement of interleukin-1 related substances in amniotic fluid. Ishihara, O., Saitoh, M., Kinoshita, K., Takanashi, H., Arai, Y., Kitagawa, H. Acta obstetricia et gynecologica Scandinavica. (1999) [Pubmed]
 
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