期刊
CYTOKINE
卷 70, 期 2, 页码 134-140出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.cyto.2014.06.018
关键词
Inflammation; Pregnancy; Postpartum; Cytokines; Obesity
资金
- NINR [R01 NR013661]
- National Center for Advancing Translational Sciences [UL1TR000090]
- NICHD [R21 HD067670]
Background: The maternal immune system undergoes substantial changes to support healthy pregnancy. Although obesity is a primary driver of inflammation and predictive of perinatal complications, additive effects of pregnancy and obesity on changes in inflammatory processes are not well delineated. Methods: This study examined serum proinflammatory markers interleukin(IL)-6, IL-8, tumor necrosis factor (TNF)-alpha, IL-1 beta, and C-reactive protein (CRP) during each trimester of pregnancy and 4-6 weeks postpartum among 57 women. Results: Overall, IL-6 showed an increasing trend across pregnancy and significant increase at postpartum. Similarly, TNF-alpha increased significantly across gestation, with a further increase at postpartum. Both IL-8 and IL-1 beta showed a U-shaped curve, decreasing from early to later pregnancy, and increasing at postpartum. Finally, serum CRP decreased significantly across pregnancy, with further decreases at postpartum. Maternal obesity predicted higher IL-6 at each study visit. Obese women showed a trend toward elevated serum CRP during pregnancy, and significantly higher levels at postpartum. Discussion: The course of pregnancy and postpartum is characterized by significant changes in serum proinflammatory mediators. Obese women show elevations in serum proinflammatory markers relative to normal weight women during pregnancy and postpartum. Further research is needed to determine the extent to which obesity-induced inflammation affects maternal and fetal health. (C) 2014 Elsevier Ltd. All rights reserved.
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