Secondary phosphine selenides were found to react with γ-aminoacetylenic ketones (80-85 °C, MeCN, 17-40 h) to afford 1,2-dihydro-3-pyrrole-3-selones in 48-80% yields, products of unprecedented selenium transfer from the P═Se bond to replace the carbonyl oxygen and to form dihydro-3-pyrrole-3-selones having a C═Se bond stable under ambient conditions.
View Article and Find Full Text PDFArch Gynecol Obstet
August 2024
Objective: To investigate whether there is an association between the gestational age at the onset of preeclampsia in recurrent cases and the gestational age at the onset of preeclampsia in previous pregnancies.
Methods: This retrospective nested case-control study was designed to investigate whether gestational age at diagnosis and at delivery in recurrent cases of preeclampsia correlates with gestational age at diagnosis and delivery in the previous cases of preeclampsia in the same individuals. The database of a Ukrainian research network was used to find patients with the diagnosis of preeclampsia between 2019 and 2021.
Arch Gynecol Obstet
November 2023
Purpose: To investigate additional potential clinical risk factors for preeclampsia.
Methods: This is a nested case-control study of preeclampsia and unaffected pregnancies. Cases were either from a prenatal screening database or from a national network of clinicians, and controls were from the same prenatal source.