Objectives: Intrauterine growth restriction (IUGR) is defined as a pathological decreased fetal growth. Oxidative stress has been connected to the restriction in the fetal growth. The transcription factor nuclear factor-erythroid 2-related factor 2 (Nrf2) is a potent activator of the cellular antioxidant response. The effect Nrf2 on fetal-placental development has not yet been sufficiently investigated. Here, we evaluated the placental and fetal growth in Nrf2 knockout (Nrf2-KO) and Nrf2-wild type mice (Nrf2-WT) throughout pregnancy.
Methods: Heterozygote Nrf2 (Nrf2) mice were paired to get Nrf2-KO and Nrf2-WT in the litters. Placentae and embryos from both genotypes were collected and weighed on days 13.5, 15.5 and 18.5 post coitum. The absolute volumes of the labyrinth zone and the total volume of the placenta were determined using the Cavalieri principle.
Results: On E 18.5 the fetal weight in Nrf2-KO was significantly reduced versus Nrf2-WT indicating a decrease in placental efficiency. A significant reduction in both total and labyrinth-volume in the placenta of Nrf2-KO mice was observed.
Conclusion: This data points out the necessity of functional Nrf2 for fetal and placental growth. A deficiency in Nrf2 signaling may negatively affect nutrient transfer capacity which is then no longer able to meet fetal growth demands.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1080/14767058.2016.1236251 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Enlarged airspaces in the distal lung in adolescents born very preterm as measured by aerosol.
BMJ Open Respir Res
December 2024
Department of Design Sciences, Lund University, Lund, Sweden
Rationale: Preterm infants diagnosed with bronchopulmonary dysplasia (BPD) are thought to have fewer and larger alveoli than their term peers, but it is unclear to what degree this persists later in life.
Objectives: To investigate to what degree the distal airspaces are enlarged in adolescents born preterm and to evaluate the new Airspace Dimension Assessment (AiDA) method in investigating this group.
Methods: We investigated 41 adolescents between 15 and 17 years of age, of whom 25 were born very preterm (a gestational age <31 weeks, with a mean of 26 weeks) and 16 were term-born controls.
Retrospective observational cohort study of premature neonates screened for ROP with 7 years of follow-up assessing the visual outcomes and adequacy of preschool visual screening.
BMJ Open Ophthalmol
December 2024
Ophthalmology, Royal Hospital for Children, Glasgow, UK.
Background: Very premature infants screened for retinopathy of prematurity (ROP) that do not develop ROP still experience serious visual developmental challenges, and while it is recommended that all children in the UK are offered preschool visual screening, we aimed to explore whether this vulnerable group requires dedicated follow-up.
Methods: We performed a real-world retrospective observational cohort study of children previously screened for ROP in NHS Greater Glasgow and Clyde (Scotland) between 2013 and 2015. We excluded those with any severity of ROP identified during screening.
A β-Thalassemia Cell Biobank: Updates, Further Validation in Genetic and Therapeutic Research and Opportunities During (and After) the COVID-19 Pandemic.
J Clin Med
January 2025
Department of Life Sciences and Biotechnology, Ferrara University, 44121 Ferrara, Italy.
: Cellular biobanks are of great interest for performing studies finalized in the development of personalized approaches for genetic diseases, including β-thalassemia and sickle cell disease (SCD), important diseases affecting the hematopoietic system. These inherited genetic diseases are characterized by a global distribution and the need for intensive health care. The aim of this report is to present an update on the composition of a cellular Thal-Biobank, to describe its utilization since 2016, to present data on its application in studies on fetal hemoglobin induction and on gene editing, and to discuss its employment as a "unique tool" during and after the COVID-19 pandemic.
View Article and Find Full Text PDFAutoimmune Thyroid Disease and Pregnancy: The Interaction Between Genetics, Epigenetics and Environmental Factors.
J Clin Med
December 2024
Department of Endocrinology, Diabetes and Metabolic Diseases, Clinical Hospital Centre Rijeka, 51000 Rijeka, Croatia.
Autoimmune thyroid disease (AITD) is the leading cause of thyroid dysfunction globally, characterized primarily by two distinct clinical manifestations: Hashimoto's thyroiditis (HT) and Graves' disease (GD). The prevalence of AITD is approximately twice as high in women compared to men, with a particularly pronounced risk during the reproductive years. Pregnancy exerts profound effects on thyroid physiology and immune regulation due to hormonal fluctuations and immune adaptations aimed at fostering maternal-fetal tolerance, potentially triggering or exacerbating AITD.
View Article and Find Full Text PDFEn Caul Cesarean Delivery-A Safer Way to Deliver a Premature Newborn? Narrative Review.
J Clin Med
December 2024
Department of Gynecology, Obstetrics and Neonatology, Division of Gynecology and Obstetrics, Medical University of Gdańsk, 80-210 Gdańsk, Poland.
Premature deliveries and preterm newborns are of a special significance to obstetricians. Despite great improvement in neonatal intensive care in the last two decades, prematurity is still the leading cause of neonatal mortality and morbidity. Complications associated with premature deliveries are malpresentation, prolapse of the umbilical cord, entrapment of some parts of the fetal body, as well as severe bruising or bone fractures.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!