Interleukin-18 and interleukin-12 in maternal serum and spontaneous preterm delivery.

Abstract:

INTRODUCTION:Mice disrupted for the interleukin (IL)-18 gene appear more disposed to preterm delivery (PTD) induced by inflammation. A synergy between IL-18 and IL-12 has been suggested. The objective of this study was to investigate a possible relation between human maternal serum levels of IL-18, IL-12 and spontaneous PTD. MATERIALS AND METHODS:A cohort of 93 consecutive women with symptoms of threatening PTD on admission was enrolled at the delivery ward, Aarhus University Hospital, Denmark. MEASURES:Serum IL-18 and IL-12 measured using Luminex xMAP technology. Endpoint: PTD before 34 weeks gestation. RESULTS:Pregnant women admitted with symptoms of threatening PTD and delivering before 34 weeks of gestation had significantly lower levels of IL-18 compared to women delivering at or after 34 weeks of gestation (medians: 14.5 versus 26.6 pg/ml; p=0.035). IL-12 levels were not different in women delivering before or after 34 weeks of gestation. Patients having low IL-18 (below the 25-percentile) and high IL-12 (above the 75-percentile) had a twofold increase in risk of delivering before 34 weeks of gestation (RR 2.1 [1.7-2.6]). CONCLUSION:Results from this study indicate, that low serum IL-18 level could be associated with PTD in women with symptoms of PTD. A possible interaction between IL-18 and IL-12 was found, as the risk of delivering before 34 weeks is increased with the combination of low IL-18 and high IL-12, but further studies are warranted to investigate these interleukins and their possible role in PTD.

journal_name

J Reprod Immunol

authors

Ekelund CK,Vogel I,Skogstrand K,Thorsen P,Hougaard DM,Langhoff-Roos J,Jacobsson B

doi

10.1016/j.jri.2007.07.002

subject

Has Abstract

pub_date

2008-04-01 00:00:00

pages

179-85

issue

2

eissn

0165-0378

issn

1872-7603

pii

S0165-0378(07)00193-3

journal_volume

77

pub_type

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