Dataset Information

C-reactive protein increases with gestational age during pregnancy among Chinese women.

ABSTRACT:

Objective

To examine the concentration of C-reactive protein (CRP) in relation to gestational weeks during pregnancy among Chinese women.

Methods

From a randomized control trial of prenatal supplementation with folic acid, iron-folic acid, and multiple micronutrients in China, we examined 834 pregnant women with CRP measured initially between 5 and 20 weeks and at follow-up between 28 and 32 weeks gestation. We calculated and plotted CRP geometric means by gestational weeks. The same analysis was repeated for women who had normal pregnancies (624 women) by excluding women with stillbirth, preterm, small for gestational age, body mass index <18.5 kg/m(2) or >30 kg/m(2) at enrollment, and hypertension or anemia during pregnancy.

Results

We observed a significant positive trend between log-transformed CRP and gestational age from 5 to 20 weeks and from 28 to 32 weeks both in the full sample and in the subset of women who had normal pregnancies. CRP geometric mean was 0.81 mg/l at 5-7 weeks of gestation, 2.85 mg/l at 19-20 weeks of gestation, and 3.89 mg/l at 32 weeks of gestation. A similar increasing trend in the CRP median or percentage of elevated CRP were also observed.

Conclusion

SUBMITTER: Mei Z

PROVIDER: S-EPMC9014253 | biostudies-literature | 2016 Jul

REPOSITORIES: biostudies-literature

ACCESS DATA

Publications

C-reactive protein increases with gestational age during pregnancy among Chinese women.

Mei Zuguo Z Li Hongtian H Serdula Mary K MK Flores-Ayala Rafael C RC Wang Linlin L Liu Jian-Meng JM Grummer-Strawn Laurence M LM

American journal of human biology : the official journal of the Human Biology Council 20160211 4

<h4>Objective</h4>To examine the concentration of C-reactive protein (CRP) in relation to gestational weeks during pregnancy among Chinese women.<h4>Methods</h4>From a randomized control trial of prenatal supplementation with folic acid, iron-folic acid, and multiple micronutrients in China, we examined 834 pregnant women with CRP measured initially between 5 and 20 weeks and at follow-up between 28 and 32 weeks gestation. We calculated and plotted CRP geometric means by gestational weeks. The s ...[more]

PMID: 26865074

Similar Datasets

Project description:BackgroundWomen with gestational diabetes mellitus (GDM) have higher insulin resistance and/or reduced secretion, an increased risk of future diabetes and cardiovascular disease, which may be due to a pathological activation of the innate immune system. C-reactive protein (CRP) is induced by inflammatory cytokines and reflects innate immune activity. We investigated the prospective associations between CRP during the perinatal period with adverse metabolic outcomes at 1 year postpartum in women with previous GDM.MethodsWe analyzed data from the MySweetheart trial that included 211 women with GDM at 28-32 weeks gestational age (GA). CRP was measured during pregnancy at 28-32 weeks GA, at 6-8 weeks and at 1 year postpartum. Metabolic outcomes at 1 year postpartum included weight, total and central body fat, measures of insulin resistance and secretion and presence of the metabolic syndrome (MetS). A 75 g oral glucose tolerance test was performed to measure glucose and insulin values every 30 min over 2 h to calculate indices of insulin resistance (MATSUDA, HOMA-IR) and of absolute (AUCins/glu, HOMA-B) and insulin resistance-adjusted insulin secretion (ISSI-2).ResultsCRP during pregnancy and at 6-8 weeks postpartum predicted increased weight, body fat and visceral adipose tissue (VAT), insulin resistance (higher HOMA-IR, lower MATSUDA), absolute insulin secretion (HOMA-B, AUCins/glu), a reduced adjusted insulin secretion (ISSI-2) and a higher prevalence of the MetS at 1 year postpartum (all p ≤ 0.036). These relationships particularly those concerning CRP during pregnancy, were independent of weight ( for VAT, insulin resistance and secretion indices, MetS; all p ≤ 0.032) and of body fat ( for VAT, MATSUDA, MetS; all p ≤ 0.038). CONCLUSION: CRP during pregnancy and in the early postpartum predicted an adverse cardio-metabolic profile in women with prior GDM at 1 year postpartum independent of weight. The prospective association of CRP with increased insulin resistance and reduced adjusted insulin secretion hint to the role of inflammation in the development of impaired metabolism after GDM and could be used as an early marker for risk stratification.

Project description:Simple Summary Preeclampsia is a severe pregnancy complication with a high incidence of maternal and fetal morbidity and mortality. Our work has demonstrated that preeclampsia shares the etiology of protein misfolding and aggregation with neurodegenerative diseases such as Alzheimer’s. We identified that transthyretin, a transporter of thyroxine and retinol, was a key component in the protein complex in the preeclampsia placenta. However, how TTR is regulated during pregnancy is not clear. In this study, we show that transthyretin is temporally downregulated in the liver and the placenta in pregnant mice and that inflammation may further orchestrate its further downregulation. Importantly, the levels of transthyretin are normalized postpartum. This research provides important insights into understanding the regulation and function of TTR in pregnancy. Abstract Our prior studies have shown that protein misfolding and aggregation in the placenta are linked to the development of preeclampsia, a severe pregnancy complication. We identified transthyretin (TTR) as a key component of the aggregated protein complex. However, the regulation of native TTR in normal pregnancy remains unclear. In this study, we found that pregnant mice exhibited a remarkable and progressive decline in serum TTR levels through gestational day (gd) 12–14, followed by an increase in late pregnancy and postpartum. Meanwhile, serum albumin levels showed a modest but statistically significant increase throughout gestation. TTR protein and mRNA levels in the liver, a primary source of circulating TTR, mirrored the changes observed in serum TTR levels during gestation. Intriguingly, a similar pattern of TTR alteration was also observed in the serum of pregnant women and pregnant interleukin-10-knockout (IL-10−/−) mice with high inflammation background. In non-pregnant IL-10−/− mice, serum TTR levels were significantly lower than those in age-matched wild-type mice. Administration of IL-10 to non-pregnant IL-10−/− mice restored their serum TTR levels. Notably, dysregulation of TTR resulted in fewer implantation units, lower fetal weight, and smaller litter sizes in human TTR-overexpressing transgenic mice. Thus, TTR may play a pivotal role as a crucial regulator in normal pregnancy, and inflammation during pregnancy may contribute to the downregulation of serum TTR presence.

Dataset Information

C-reactive protein increases with gestational age during pregnancy among Chinese women.

Objective

Methods

Results

Conclusion

Publications

C-reactive protein increases with gestational age during pregnancy among Chinese women.

Similar Datasets

OmicsDI is part of the ELIXIR infrastructure

Tweets