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Acquired sperm hypomethylation by gestational arsenic exposure is re-established in both the paternal and maternal genomes of post-epigenetic reprogramming embryos.
Epigenetics Chromatin
January 2025
Department of Maternal‑Fetal Biology, National Center for Child Health and Development, Tokyo, 157‑8535, Japan.
Background: DNA methylation plays a crucial role in mammalian development. While methylome changes acquired in the parental genomes are believed to be erased by epigenetic reprogramming, accumulating evidence suggests that methylome changes in sperm caused by environmental factors are involved in the disease phenotypes of the offspring. These findings imply that acquired sperm methylome changes are transferred to the embryo after epigenetic reprogramming.
View Article and Find Full Text PDFMaternal obesity alters histone modifications mediated by the interaction between Ezh2 and Ampk, impairing neural differentiation in the developing embryonic brain cortex.
J Biol Chem
January 2025
Department of Biochemistry, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, Abu Dhabi, UAE; Zayed Center for Health Sciences, United Arab Emirates University, Al Ain, Abu Dhabi, UAE; ASPIRE Precision Medicine Research Institute Abu Dhabi (PMRI-AD), United Arab Emirates University, Al Ain, UAE. Electronic address:
Neurodevelopmental disorders have complex origins that manifest early during embryonic growth and are associated with intricate gene regulation dynamics. A perturbed metabolic environment such as hyperglycemia or dyslipidemia, particularly due to maternal obesity, poses a threat to the optimal development of the embryonic central nervous system. Accumulating evidence suggests that these metabolic irregularities during pregnancy may alter neurogenesis pathways, thereby predisposing the developing fetus to neurodevelopmental disorders.
View Article and Find Full Text PDFMaternal Long-Chain Polyunsaturated Fatty Acids Status in Pregnancy and Newborn Body Composition.
Nutrients
December 2024
Department of Functional and Organic Food, Institute of Human Nutrition Sciences, Warsaw University of Life Sciences, Nowoursynowska 159c, 02-776 Warsaw, Poland.
Background: A number of clinical studies have shown a positive association between the maternal -3 PUFA status during pregnancy and fetal and newborn development and health. Despite this well-documented role of -3 PUFAs in pregnancy, data on maternal the LC-PUFAs status during pregnancy in the Indonesian population, to our knowledge, are not yet available. This study reports on the LC-PUFA dietary intake among pregnant women in a suburban population of Bogor City, West Java, Indonesia.
View Article and Find Full Text PDFSmall Extracellular Vesicles Derived from Cord Blood Plasma and Placental Mesenchymal Stem Cells Attenuate Acute Lung Injury Induced by Lipopolysaccharide (LPS).
Int J Mol Sci
December 2024
Division of Neonatology, Department of Pediatrics and Human Development, College of Human Medicine, Michigan State University, East Lansing, MI 48824, USA.
Sepsis is a risk factor associated with increasing neonatal morbidity and mortality, acute lung injury, and chronic lung disease. While stem cell therapy has shown promise in alleviating acute lung injury, its effects are primarily exerted through paracrine mechanisms rather than local engraftment. Accumulating evidence suggests that these paracrine effects are mediated by mesenchymal stem cell (MSC)-derived small extracellular vesicles (sEVs), which play a critical role in immune system modulation and tissue regeneration.
View Article and Find Full Text PDFNonketotic hyperglycinemia (NKH), also known as glycine encephalopathy, is a rare inherited neurometabolic disorder caused by a deficiency in the glycine cleavage enzyme system (GCS), leading to the pathological accumulation of glycine in blood and cerebrospinal fluid (CSF). This case report details a neonate presenting with central apnea, profound hypotonia, and refractory seizures, alongside prenatal findings of polyhydramnios and hiccup-like fetal movements, all strongly suggestive of severe NKH. Diagnostic evaluation confirmed markedly elevated glycine levels in serum and CSF, with a CSF-to-plasma glycine ratio exceeding 0.
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