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- W4366352266 endingPage "e0284333" @default.
- W4366352266 startingPage "e0284333" @default.
- W4366352266 abstract "Background Oral contraceptive (OC) use increases venous thromboembolism risk 2-5-fold. Procoagulant changes can be detected in plasma from OC users even without thrombosis, but cellular mechanisms that provoke thrombosis have not been identified. Endothelial cell (EC) dysfunction is thought to initiate venous thromboembolism. It is unknown whether OC hormones provoke aberrant procoagulant activity in ECs. Objective Characterize the effect of high-risk OC hormones (ethinyl estradiol [EE] and drospirenone) on EC procoagulant activity and the potential interplay with nuclear estrogen receptors ERα and ERβ and inflammatory processes. Methods Human umbilical vein and dermal microvascular ECs (HUVEC and HDMVEC, respectively) were treated with EE and/or drospirenone. Genes encoding the estrogen receptors ERα and ERβ ( ESR1 and ESR2 , respectively) were overexpressed in HUVEC and HDMVEC via lentiviral vectors. EC gene expression was assessed by RT-qPCR. The ability of ECs to support thrombin generation and fibrin formation was measured by calibrated automated thrombography and spectrophotometry, respectively. Results Neither EE nor drospirenone, alone or together, changed expression of genes encoding anti- or procoagulant proteins ( TFPI , THBD , F3 ), integrins ( ITGAV , ITGB3 ), or fibrinolytic mediators ( SERPINE1 , PLAT ). EE and/or drospirenone did not increase EC-supported thrombin generation or fibrin formation, either. Our analyses indicated a subset of individuals express ESR1 and ESR2 transcripts in human aortic ECs. However, overexpression of ESR1 and/or ESR2 in HUVEC and HDMVEC did not facilitate the ability of OC-treated ECs to support procoagulant activity, even in the presence of a pro-inflammatory stimulus. Conclusions The OC hormones EE and drospirenone do not directly enhance thrombin generation potential of primary ECs in vitro ." @default.
- W4366352266 created "2023-04-21" @default.
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- W4366352266 date "2023-04-19" @default.
- W4366352266 modified "2023-09-24" @default.
- W4366352266 title "High risk oral contraceptive hormones do not directly enhance endothelial cell procoagulant activity in vitro" @default.
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- W4366352266 doi "https://doi.org/10.1371/journal.pone.0284333" @default.
- W4366352266 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/37075041" @default.
- W4366352266 hasPublicationYear "2023" @default.