The fetal-to-maternal ratios of carbamazepine, antipyrine and phenytoin are principally determined by maternal protein binding, though greater lipid solubility may enhance the transfer of valproate compared to that of other drugs at high flows. Placental clearance of all anticonvulsants showed flow-dependent characteristics. This is in line with our findings for basic drugs.
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http://dx.doi.org/10.1016/s0143-4004(86)80151-5 | DOI Listing |
BMC Vet Res
January 2025
Division of Oncology, Department of Clinical Sciences, Lund University, Lund, 22381, Sweden.
Background: Prostaglandin E2 (PGE2) is vital for embryo implantation and decidualization. Whether COX2/mPGES1/PGE2 pathway is essential for mouse and human decidualization remains unclear.
Results: This study showed that mPGES1 was highly expressed in the mouse uterus's subluminal stromal cells at the implantation site.
BMC Med Genomics
January 2025
Ultrasound Diagnosis Department, Maternal and Child Health Hospital of Hubei Province, Wuhan, 430070, China.
Background: The clinical manifestations of PI4KA-related disorders are characterized by considerable variability, predominantly featuring neurological impairments, gastrointestinal symptoms, and a combined immunodeficiency. The aim of this study was to delineate the novel spectrum of PI4KA variants detected prenatally and to assess their influence on fetal development.
Methods: A thorough fetal ultrasound screening was conducted, supplemented by both antenatal and post-abortion magnetic resonance imaging (MRI) studies.
BMC Pregnancy Childbirth
January 2025
Department of Obstetrics and Gynecology, National Clinical Research Center for Obstetrics and Gynecology, Peking University Third Hospital, Peking University Third Hospital), National Center for Healthcare Quality Management in Obstetrics, Beijing, 100191, China.
Background: Postpartum hemorrhage (PPH) is the leading cause of maternal mortality worldwide, with uterine atony accounting for approximately 70% of PPH cases. However, there is currently no effective prediction method to promote early management of PPH. In this study, we aimed to screen for potential predictive biomarkers for atonic PPH using combined omics approaches.
View Article and Find Full Text PDFDrug Metab Dispos
January 2025
Office of Clinical Pharmacology, Office of Translational Sciences, Center for Drug Evaluation and Research, Food and Drug Administration, Silver Spring, Maryland.
Evidence-based dose selection of drugs in pregnant women has been lacking because of challenges in studying maternal-fetal pharmacokinetics. Hence, many drugs are administered off-label during pregnancy based on data obtained from nonpregnant women. During pregnancy, drug transporters play an important role in drug disposition along with known gestational age-dependent changes in physiology and drug-metabolizing enzymes.
View Article and Find Full Text PDFDrug Metab Dispos
January 2025
Centre for Applied Pharmacokinetic Research, University of Manchester, Manchester, United Kingdom; Certara Predictive Technologies, Sheffield, United Kingdom.
The placenta acts as a barrier, excluding noxious substances while actively transferring nutrients to the fetus, mediated by various transporters. This study quantified the expression of key placental transporters in term human placenta (n = 5) and BeWo, BeWo b30, and JEG-3 placenta cell lines. Combining these results with pregnancy physiologically based pharmacokinetic (PBPK) modeling, we demonstrate the utility of proteomic analysis for predicting placental drug disposition and fetal exposure.
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