98%
921
2 minutes
20
Placental oxygenation varies throughout pregnancy. The detection of early changes in placental oxygenation as pregnancy progresses is important for early identification of preeclampsia or other complications. This invited commentary discusses a recent preclinical study on the application of 3-dimensional photoacoustic imaging (PAI) for assessment of regional variations in placental oxygenation and longitudinal analysis of differences in placental oxygenation throughout normal pregnancy and pregnancy associated with hypertension or placental insufficiency in mice. Three-dimensional PAI more accurately reflects oxygen saturation, hemoglobin concentrations, and changes in oxygen saturation in whole placenta compared to 2-dimensional imaging. These studies suggest that PAI is a sensitive tool to detect different levels of oxygen saturation in the placental and fetal vasculature in pathologic and normal pregnancy in mice.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6201183 | PMC |
http://dx.doi.org/10.1177/1536012118802721 | DOI Listing |
Pestic Biochem Physiol
November 2025
Department of GreenBio Science, Gyeongsang National University, Jinju 52725, Republic of Korea. Electronic address:
Bromuconazole, a widely used triazole-based pesticide, effectively controls fungal diseases in agriculture. Bromuconazole cause a potential toxic effect to non-target organisms and can have a negative impact on reproductive health in women, due to its long half-life and bioaccumulation ability. This study identifies the cytotoxicity and adverse effects of bromuconazole on trophoblastic cells (HTR-8/SVneo) and human endometrial cells (T HESCs), which are involved in implantation processes.
View Article and Find Full Text PDFThe placenta is a complex organ with multiple immune and non-immune cell types that promote fetal tolerance and facilitate the transfer of nutrients and oxygen. The nonhuman primate (NHP) is a key experimental model for studying human pregnancy complications, in part due to similarities in placental structure, which makes it essential to understand how single-cell populations compare across the human and NHP maternal-fetal interface. We constructed a single-cell RNA-Seq (scRNA-Seq) atlas of the placenta from the pigtail macaque ( ) in the third trimester, comprising three different tissues at the maternal-fetal interface: the chorionic villi (placental disc), chorioamniotic membranes, and the maternal decidua.
View Article and Find Full Text PDFBiol Reprod
September 2025
Center for Drug Discovery, Baylor College of Medicine, Houston, Texas 77030, USA.
Decidualization is the transformation of endometrial stromal cells into functionally specialized cells during the early stages of pregnancy. Occurring in mammals that develop invasive hemochorial placentae, decidualization is a pivotal evolutionary adaptation in mammals that supports pregnancy establishment, implantation, and placentation in a limited number of animal species. During decidualization, an endometrial stromal cell undergoes profound genetic, epigenetic, and proteomic changes, allowing it to prevent immunological rejection and fostering the development of a newly implanted embryo.
View Article and Find Full Text PDFCommun Med (Lond)
August 2025
University of North Carolina Chapel Hill School of Medicine, Department of Cell Biology & Physiology, 111 Mason Farm Road, Chapel Hill, NC, 27599, USA.
Background: Electronic cigarettes (e-cigarettes) function by aerosolizing a base liquid containing nicotine and flavoring, used by an estimated 15% of pregnant women as a supposed safer alternative to traditional cigarettes. Our previous studies demonstrated e-cigarettes can delay gestation. Limited studies have examined in vivo effects on the placenta.
View Article and Find Full Text PDFInt J Mol Sci
August 2025
Stem Cell Research Unit, Blood and Cancer Research Department, King Abdullah International Medical Research Center (KAIMRC), King Saud bin Abdulaziz University for Health Sciences (KSAU-HS), Ministry of National Guard Health Affairs (MNGHA), Riyadh 11426, Saudi Arabia.
Diabetes is increasingly recognized as a chronic inflammatory disease marked by systemic metabolic disturbances, with endothelial dysfunction playing a central role in its complications. Hyperglycemia, a hallmark of diabetes, drives endothelial damage by inducing excessive reactive oxygen species (ROS) production, particularly hydrogen peroxide (HO). This oxidative stress impairs endothelial cells, which are vital for vascular health, leading to severe complications such as diabetic nephropathy, retinopathy, and coronary artery disease-major causes of morbidity and mortality in diabetic patients.
View Article and Find Full Text PDF