scholarly journals Monocarboxylate transporter 8 expression in the human placenta: the effects of severe intrauterine growth restriction

2006 ◽  
Vol 189 (3) ◽  
pp. 465-471 ◽  
Author(s):  
S-Y Chan ◽  
J A Franklyn ◽  
H N Pemberton ◽  
J N Bulmer ◽  
T J Visser ◽  
...  
Keyword(s):  
Human Placenta ◽  
Fetal Development ◽  
Intrauterine Growth Restriction ◽  
First Trimester ◽  
Growth Restriction ◽  
Monocarboxylate Transporter ◽  
Trophoblast Cells ◽  
Third Trimester ◽  
Neurodevelopmental Delay ◽  
Intrauterine Growth

Thyroid hormones (THs) are essential for normal fetal development, with even mild perturbation in maternal thyroid status in early pregnancy being associated with neurodevelopmental delay in children. Transplacental transfer of maternal THs is critical, with increasing evidence suggesting a role for 3,3′,5-tri-iodothyronine (T3) in development and function of the placenta itself, as well as in development of the central nervous and other organ systems. Intrauterine growth restriction (IUGR) is associated with fetal hypothyroxinaemia, a factor that may contribute to neurodevelopmental delay. The recent description of monocarboxylate transporter 8 (MCT8) as a powerful and specific TH membrane transporter, and the association of MCT8 mutations with profound neurodevelopmental delay, led us to explore MCT8 expression in placenta. We describe the expression of MCT8 in normal human placenta throughout gestation, and in normal third-trimester placenta compared with that associated with IUGR using quantitative reverse transcriptase PCR. MCT8 mRNA was detected in placenta from early first trimester, with a significant increase with advancing gestation (P=0.007). In the early third trimester, MCT8 mRNA was increased in IUGR placenta compared with normal samples matched for gestational age (P<0.05), but there was no difference between IUGR and normal placenta in the late third trimester. Western immunoblotting findings in IUGR and normal placentae were in accord with mRNA data. MCT8 immunostaining was demonstrated in villous cytotrophoblast and syncytiotrophoblast as well as extravillous trophoblast cells from the first trimester onwards with increasingly widespread immunoreactivity seen with advancing gestation. In conclusion, expression of MCT8 in placenta from early gestation is compatible with an important role in TH transport during fetal development and a specific role in placental development. Altered expression in placenta associated with IUGR may reflect a compensatory mechanism attempting to increase T3 uptake by trophoblast cells.

Is ProBNP a New Marker for Predicting Intrauterine Growth Restriction?

2021 ◽  
Vol 225 (02) ◽  
pp. 125-128
Author(s):  
Hasan Eroğlu ◽  
Nazan Vanlı Tonyalı ◽  
Gokcen Orgul ◽  
Derya Biriken ◽  
Aykan Yucel ◽  
...  
Keyword(s):  
Intrauterine Growth Restriction ◽  
Final Analysis ◽  
First Trimester ◽  
Maternal Serum ◽  
Growth Restriction ◽  
Control Group ◽  
Aneuploidy Screening ◽  
Intrauterine Growth ◽  
Potential Marker ◽  
The Mean

Abstract Purpose To evaluate the usability of first-trimester maternal serum ProBNP levels in the prediction of intrauterine growth restriction (IUGR). Methods In this prospective study, blood samples taken from 500 women who applied to our polyclinic for routine serum aneuploidy screening between the 11–14th gestational weeks were centrifuged. The obtained plasma samples were placed in Eppendorf tubes and stored at −80+°C. For the final analysis, first-trimester maternal serum ProBNP levels of 32 women diagnosed with postpartum IUGR and 32 healthy women randomly selected as the control group were compared. FGR was defined as estimated fetal weight below the 10th percentile for the gestational age. Results The mean ProBNP levels were statistically and significantly higher in the women with intrauterine growth restriction (113.73±94.69 vs. 58.33±47.70 pg/mL, p<0.01). At a cut-off level of 50.93, ProBNP accurately predicted occurrence of IUGR (AUC+= 0.794 (95% confidence interval 0.679–0.910), p+= 0.001) with sensitivity and specificity rates of 78.1 and 69.0%, respectively. Conclusion First-trimester serum ProBNP level was significantly higher in women who developed IUGR compared to healthy controls. First-trimester ProBNP level can be used as a potential marker to predict the development of IUGR in pregnant women.

First trimester uterine artery Doppler and subsequent intrauterine growth restriction and preterm birth

2004 ◽  
Vol 191 (6) ◽  
pp. S22
Author(s):  
Lorraine Dugoff ◽  
John Hobbins ◽  
Vincent Faber ◽  
Fergal Malone ◽  
Michael Belfort ◽  
...  
Keyword(s):  
Preterm Birth ◽  
Intrauterine Growth Restriction ◽  
Uterine Artery ◽  
First Trimester ◽  
Growth Restriction ◽  
Uterine Artery Doppler ◽  
Intrauterine Growth

First trimester uterine artery Doppler abnormalities predict subsequent intrauterine growth restriction

2005 ◽  
Vol 193 (3) ◽  
pp. 1208-1212 ◽  
Author(s):  
Lorraine Dugoff ◽  
Anne M. Lynch ◽  
Darleen Cioffi-Ragan ◽  
John C. Hobbins ◽  
Lisa K. Schultz ◽  
...  
Keyword(s):  
Intrauterine Growth Restriction ◽  
Uterine Artery ◽  
First Trimester ◽  
Growth Restriction ◽  
Uterine Artery Doppler ◽  
Intrauterine Growth

scholarly journals First trimester screening for pre-eclampsia and intrauterine growth restriction using three-dimensional Doppler angiography (SPIRIT): protocol for a multicentre prospective study in nulliparous pregnant women

BMJ Open ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. e037751
Author(s):  
Charline Bertholdt ◽  
Gabriela Hossu ◽  
Claire Banasiak ◽  
Marine Beaumont ◽  
Olivier Morel
Keyword(s):  
Pregnant Women ◽  
Intrauterine Growth Restriction ◽  
Power Doppler ◽  
First Trimester ◽  
Growth Restriction ◽  
Flow Index ◽  
Intrauterine Growth ◽  
Uncomplicated Pregnancy ◽  
Nulliparous Women ◽  
Biomarker Analysis

IntroductionPre-eclampsia (PE) and intrauterine growth restriction (IUGR) are two major pregnancy complications, related to chronic uteroplacental hypoperfusion. Nowadays, there is no screening or diagnostic test for uteroplacental vascularisation deficiency in pregnant women. Since 2004, 3 three-imensional power Doppler (3DPD) angiography has been used for the evaluation of uteroplacental vascularisation and three vascular indices are usually calculated: Vascularisation Index (VI), Flow Index (FI) and vascularisation-FI (VFI). A high intraobserver and interobserver reproducibility and a potential interest for placental function study were reported by our team and others.The main objective of our study is to determine differences in 3DPD indices at first trimester between pregnancies defined at their outcome as uncomplicated pregnancy, PE (mild and severe) and IUGR in nulliparous women.Methods and analysisThis is a national multicentre prospective cohort study conducted in four French maternity units. We expect to include 2200 women in a period of 36 months. The nulliparous pregnant women will be recruited during their first trimester consultation (11–13+6 gestation week (GW)).The 3DPD and uterine artery Doppler acquisition will be included in the current routine 11–13+6 GW ultrasound. Also, additional blood samples will be taken for biomarker analysis (PAPP-A and P1GF) and biological collection. Uteroplacental VIs (FI and VFI) will be measured. For each subgroup (uncomplicated pregnancy, PE and IUGR), mean values in 3DPD indices will be computed and compared using a pairwise t test with a Bonferroni correction p value adjustment.Ethics and disseminationThe study was approved by the French Ethics Committee, the Comité de Protection des Personnes SUD MEDITERRANEE IV on 13 February 2018 with reference number 17 12 03. The results of this study will be published in a peer-reviewed journal and will be presented at relevant conferences.Trial registration numberNCT03342014; Pre-results. PHRCN-16-0567.

Impact of maternal malaria and under-nutrition on intrauterine growth restriction: a prospective ultrasound study in Democratic Republic of Congo

2008 ◽  
Vol 137 (2) ◽  
pp. 294-304 ◽  
Author(s):  
S. H. LANDIS ◽  
V. LOKOMBA ◽  
C. V. ANANTH ◽  
J. ATIBU ◽  
R. W. RYDER ◽  
...  
Keyword(s):  
Intrauterine Growth Restriction ◽  
Democratic Republic ◽  
Democratic Republic Of Congo ◽  
Growth Restriction ◽  
Third Trimester ◽  
Republic Of Congo ◽  
Intrauterine Growth ◽  
Under Nutrition ◽  
Ultrasound Study ◽  
Binomial Regression

SUMMARYMaternal malaria and under-nutrition are established risk factors for small-for-gestational-age (SGA) births; however, whether malaria is associated with intrauterine growth restriction (IUGR) is unknown. We investigated IUGR risk among 177 HIV-negative pregnant women enrolled in a longitudinal ultrasound study conducted in Democratic Republic of Congo from May 2005 to May 2006. Malaria infection, maternal anthropometrics, and ultrasound estimated fetal weight were measured monthly. All positive malaria cases were treated and intermittent presumptive therapy (IPTp) provided. Log-binomial regression models for IUGR were fitted using generalized estimating equations to account for statistical clustering of repeat IUGR measurements. Twenty-nine percent of fetuses experienced an episode of IUGR with the majority occurring in the third trimester. The risk of IUGR associated with malaria was greatest after three or more cumulative infections (RR 3·3, 95% CI 1·3–8·2) and was two- to eight-fold higher among women with evidence of under-nutrition. Receiving antimalarial treatment in the previous month (for IPTp or treatment) was significantly protective against IUGR (RR 0·5, 95% CI 0·3–0·7). The interaction observed between malaria and under-nutrition suggests that antenatal programmes in malaria endemic areas should incorporate nutritional screening and supplementation in addition to IPTp.

Pathological placentation and prediction of preeclampsia and intrauterine growth restriction in the first trimester

2018 ◽  
Vol 5_2018 ◽  
pp. 12-19 ◽  
Author(s):  
Kholin A.M. Kholin ◽  
Khodzhaeva Z.S. Khodzhaeva ◽  
Gus A.I. Gus ◽  
Keyword(s):  
Intrauterine Growth Restriction ◽  
First Trimester ◽  
Growth Restriction ◽  
Intrauterine Growth
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