Talk:Amniocentesis

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2011

Mid-trimester amniotic fluid concentrations of the proinflammatory cytokines IL-6, IL-8, TNF-α, and lipopolysaccharide binding protein in normal pregnancies: a prospective evaluation according to parity, gestational age, and fetal gender

J Perinat Med. 2011 Jul;39(4):403-9. Epub 2011 Jun 24.

Bamberg C, Fotopoulou C, Linder M, Roehr CC, Dudenhausen JW, Henrich W, Kalache K. Source Department of Obstetrics, Charité-University Hospital, Berlin, Germany.

Abstract

Abstract Objective: To assess mid-trimester amniotic fluid concentrations of interleukin (IL)-6, IL-8, tumor necrosis factor (TNF)-α, and lipopolysaccharide binding protein (LBP) in pregnancies with normal outcome and correlate them with gestational week (GW), parity, and fetal gender. Methods: Cytokine concentrations were measured within a week of amniocentesis during GW 15+0 to 20+6 and correlated with GW at birth, parity, and fetal gender. Results: After exclusion of women with an adverse pregnancy outcome or those lost to follow-up, 273 consecutive patients were evaluated (median parity: 1; range: 0-5). Ranges for IL-6, IL-8, TNF-α, and LBP were 4.9-2620 pg/mL, 36.2-5843 pg/mL, 8.0-28.2 pg/mL, and 0.06-1.9 μg/mL, respectively. IL-6, IL-8, and LBP values did not respectively differ among time points, but TNF-α values did between the 15(th) and 16(th) and the 15(th) and 18(th) weeks of gestation (P<0.05). No significant correlations between cytokine levels and parity or fetal gender were identified. Conclusions: Cytokine concentrations in amniotic fluid during the mid-trimester did not differ with parity or fetal gender. IL-6, IL-8, and LBP levels appeared stable with GW, whereas GW significantly influenced TNF-α concentrations. Further analyses are warranted to establish the role of cytokines in predicting adverse pregnancy outcomes.

PMID: 21702700 http://www.ncbi.nlm.nih.gov/pubmed/21702700