scholarly journals Household air pollution, ultrasound measurement, fetal biometric parameters and intrauterine growth restriction

2021 ◽  
Vol 20 (1) ◽  
Author(s):  
Anindita Dutta ◽  
Donee Alexander ◽  
Theodore Karrison ◽  
Oludare Morhasson-Bello ◽  
Nathaniel Wilson ◽  
...  
Keyword(s):  
Air Pollution ◽  
Fetal Growth ◽  
Intrauterine Growth Restriction ◽  
Growth Restriction ◽  
Growth Trajectories ◽  
Second Trimester ◽  
Control Groups ◽  
Intrauterine Growth ◽  
Biometric Parameters ◽  
And Control

Abstract Background Low birthweight, intrauterine growth restriction (IUGR) and perinatal mortality have been associated with air pollution. However, intervention studies that use ultrasound measurements to assess the effects of household air pollution (HAP) on fetal biometric parameters (FBP) are rare. We investigated the effect of a cookstove intervention on FBP and IUGR in a randomized controlled trial (RCT) cohort of HAP-exposed pregnant Nigerian women. Methods We recruited 324 women early in the second trimester of pregnancy. Between 16 and 18 weeks, we randomized them to either continue cooking with firewood/kerosene (control group) or receive a CleanCook stove and ethanol fuel (intervention group). We measured fetal biparietal diameter (BPD), head circumference (HC), femur length (FL), abdominal circumference (AC) and ultrasound-estimated fetal weight (U-EFW) in the second and third trimesters. The women were clinically followed up at six regular time points during their pregnancies. Once during the women’s second trimester and once during the third, we made 72-h continuous measurements of their personal exposures to particulate matter having aerodynamic diameter < 2.5 μm (PM2.5). We adopted a modified intent-to-treat approach for the analysis. Differences between the intervention and control groups on impact of HAP on fetal growth trajectories were analyzed using mixed effects regression models. Results There were no significant differences in fetal growth trajectories between the intervention and control groups. Conclusions Larger studies in a setting of low ambient air pollution are required to further investigate the effect of transitioning to a cleaner fuel such as ethanol on intrauterine growth. Trial registration ClinicalTrials.gov NCT02394574; September 2012

scholarly journals Pathophysiological changes of umbilical vessels in intrauterine growth restriction

2014 ◽  
Vol 155 (50) ◽  
pp. 1989-1995
Author(s):  
Mária Jakó ◽  
Andrea Surányi ◽  
László Kaiser ◽  
Dóra Domokos ◽  
Róbert Gáspár ◽  
...  
Keyword(s):  
Umbilical Cord ◽  
Intrauterine Growth Restriction ◽  
Growth Restriction ◽  
Perinatal Morbidity ◽  
Control Groups ◽  
Umbilical Vessels ◽  
Intrauterine Growth ◽  
Basal Tone ◽  
Vasopressin Receptors ◽  
And Control

Introduction: The prevalence of intrauterine growth restriction is 4–5000/100,000 births, and they give the majority of perinatal morbidity. Aim: The aim of the authors was to compare the pathomorphologic data and vasoreactivity of umbilical vessels and placenta of small for date newborns to that of the normal pregnancies. Method: Samples of the umbilical cord and placenta were divided into case and control groups. Two 10 cm long segments were cut of the umbilical cord at placental insertion. Tissue bath experiment was performed on umbilical vessels and pathomorphologic data were collected according to the Royal College of Pathologists’ protocol. Results: After the development of basal tone, oxytocin and desmopressin did not enhance the vascular contraction, but the pathomorphological and ultrasonographic data were significantly different in the two groups. Conclusions: The results indicate that umbilical vessels might not have oxytocin or vasopressin receptors. The pathomorphologic and flowmetric differences could be the causes of small birth weight. Orv. Hetil., 2014, 155(50), 1989–1995.

Campylobacter coliinfection causing second trimester intrauterine growth restriction (IUGR): a case report and review of the literature

2015 ◽  
Vol 35 (12) ◽  
pp. 1258-1261 ◽  
Author(s):  
Adi Kuperman-Shani ◽  
Zvi Vaknin ◽  
Sonia Mendlovic ◽  
Ronit Zaidenstein ◽  
Yaakov Melcer ◽  
...  
Keyword(s):  
Case Report ◽  
Intrauterine Growth Restriction ◽  
Growth Restriction ◽  
Second Trimester ◽  
Review Of The Literature ◽  
Intrauterine Growth

Placental expression of the obesity-associated gene FTO is reduced by fetal growth restriction but not by macrosomia in rats and humans

2012 ◽  
Vol 4 (2) ◽  
pp. 134-138 ◽  
Author(s):  
S. Mayeur ◽  
O. Cisse ◽  
A. Gabory ◽  
S. Barbaux ◽  
D. Vaiman ◽  
...  
Keyword(s):  
Weight Gain ◽  
Birth Weight ◽  
Fetal Growth ◽  
Genetic Variants ◽  
Intrauterine Growth Restriction ◽  
Growth Restriction ◽  
Intrauterine Growth ◽  
Placental Villi ◽  
Insight Into ◽  
Epigenetic Processes

Genetic variants in the FTO (fat mass- and obesity-associated) gene have the highest association of all obesity-associated genes. Its placental expression was shown to relate to birth weight, suggesting that it may participate in the control of fetal weight gain. To gain more insight into the implication of FTO in fetal growth, we measured its placental expression in samples including extremes of abnormal fetal growth, such as after intrauterine growth restriction (IUGR) or macrosomia in both rats and humans. In rats, fetal growth was modulated by maternal nutritional modifications. In humans, placental villi were collected from pathological pregnancies (i.e. with IUGR or fetal macrosomia). Placental FTO mRNA expression was reduced by IUGR but was not significantly affected by macrosomia in either rats or humans. Our data suggest that placental FTO may participate in interactions between the in utero environment and the control of fetal growth under IUGR conditions by modulating epigenetic processes.

Experimental aspects of nutrition and fetal growth

1998 ◽  
Vol 10 (2) ◽  
pp. 91-107 ◽  
Author(s):  
FH Bloomfield ◽  
JE Harding
Keyword(s):  
Effective Treatment ◽  
Fetal Growth ◽  
Intrauterine Growth Restriction ◽  
Growth Restriction ◽  
Perinatal Morbidity ◽  
Intrauterine Growth ◽  
Fetal Nutrition ◽  
Determining Factor ◽  
Ultrasound Evidence ◽  
Made In

Intrauterine growth restriction (IUGR) remains a major cause of perinatal morbidity and mortality and, as yet, there is no effective treatment. Most fetuses with ultrasound evidence of moderate to severe IUGR do not grow better out of the womb than in, despite early enteral feeds and subsequent calorie supplementation. Research into possible therapies for growth restricted babies has thus also been directed towards the fetus. Major advances have been made in recent years in the understanding of the physiology of fetal growth, and it has become clear that fetal nutrition is the determining factor.

scholarly journals The weight gain influence of pregnant women under different clinical conditions on weight at the birth of newborns.

2020 ◽  
Author(s):  
Márcia Dornelles Machado Mariot ◽  
Daniela Cortés Kretzer ◽  
Isadora Musse Nunes ◽  
Marcelo Zubaran Goldani ◽  
Juliana Rombaldi Bernardi ◽  
...  
Keyword(s):  
Weight Gain ◽  
Birth Weight ◽  
Pregnant Women ◽  
Gestational Weight Gain ◽  
Intrauterine Growth Restriction ◽  
Growth Restriction ◽  
Intrauterine Growth ◽  
Gestational Weight ◽  
Clinical Conditions ◽  
And Control

Abstract BACKGROUND: This study evaluate the influence of weight gain of pregnant women under different clinical conditions (Tobacco, Diabetes mellitus (DM), Hypertension, Intrauterine growth restriction (IUGR) and Control) on the birth weight of newborns. METHODS: This is an observational, longitudinal study nested in a prospective controlled cohort and conducted from 2011 to 2016 in three hospitals in the city of Porto Alegre (Brazil). Sociodemographic, prenatal (maternal gestational weight gain, among others) and perinatal (birth weight) data from 372 mother-child pairs were analyzed. Pearson's correlation was used to verify the relationship between gestational weight gain and birth weight. Multivariate regression was performed to determine the association between maternal weight gain in the presence of various health conditions and birth weight. RESULTS: There were no statistical differences in gestational weight gain in different health condition groups (p=0.092). However, women in the Hypertension group had a tendency to gain more weight (p = 0.097). Mothers in the intrauterine growth restriction group gained less weight. A positive correlation was observed between gestational weight gain and birth weight in the Tobacco (p = 0.003) and Control (p =0.001) groups, which remained positive only in the Control group after adjustment (p<0.004). CONCLUSIONS: Only weight gain in pregnant women without clinical changes during pregnancy seemed to influence the weight of the newborn. It is assumed that other factors, such as metabolic or nutritional, present among smoking, diabetes mellitus, hypertensive or with intrauterine growth restriction pregnant women have different modulations on the intrauterine environment and, therefore, exert a different influence on fetal growth.

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