Results 21 to 30 of about 227,938 (286)
Expression of mRNA for phospholipase A(2), cyclooxygenases, and lipoxygenases in cultured human umbilical vascular endothelial and smooth muscle cells and in biopsies from umbilical arteries and veins [PDF]
, 1998 Arachidonic acid (AA) is released by phospholipase A(2) (PLA(2)) and then converted into vasoactive and inflammatory eicosanoids by cyclooxygenases (COX) and lipoxygenases (LOX).
Söderkvist, Peter +5 more
core +1 more source
A Rare Complex Case of Congenital Umbilical Arteriovenous Malformation and Review of Literature
American Journal of Perinatology Reports, 2016 Introduction Congenital umbilical arteriovenous malformations (AVMs) are extremely rare. We present the first case of congenital umbilical AVM with feeding arteries originating not only from abdominal but also from the mammary arteries. Case
Rebeca Gregorio-Hernández +5 more
doaj +1 more source
Current Medicine Research and Practice, 2021 Umbilical cord has two arteries and one vein. The absence of one artery is referred to as single umbilical artery which could be because of primary agenesis of umbilical artery or atrophy or secondary atresia of the previously normally developed ...
Sakshi Nayar +4 more
doaj +1 more source
eLife, 2020 High levels of proteins called proteoglycans in the walls of umbilical arteries enable these arteries to close rapidly after birth and thus prevent blood loss in newborns.
Jessica E Wagenseil, Karen M Downs
doaj +1 more source
Umbilical artery perforation: a potentially life-threatening complication of umbilical artery catheterisation [PDF]
BMJ Case Reports, 2017 Umbilical artery catheterisation is frequently performed in preterm or critically ill newborn infants for invasive monitoring of blood pressure and blood sampling for laboratory tests. It is associated with well-known complications like catheter-related infections, thromboembolic events and aneurysmal formation of the aorta.
Molanus, Daniel +4 more
openaire +2 more sources
Umbilical vein to artery ratio in fetuses with single umbilical artery [PDF]
Ultrasound in Obstetrics and Gynecology, 1996 In fetuses with single umbilical artery (SUA) the entire blood flow to the placenta is transported through only one umbilical artery, resulting in a compensatory increase of the arterial diameter. In order to establish whether umbilical vessel size could be used as an additional ultrasonographic criterion for prenatal diagnosis of SUA, we measured ...
W. Sepulveda +3 more
openaire +3 more sources
PLoS ONE, 2020 Human fetal thermoregulation, maternal-fetal heat exchange, and the role of the umbilical cord in these processes are not well understood. Ethical and technical limitations have restricted current knowledge to animal studies, that do not reflect human ...
Dorothea Kasiteropoulou +2 more
doaj +1 more source
Differential development of umbilical and systemic arteries. II. Contractile proteins
, 1998 In fetal sheep, umbilical responsiveness to ANG II exceeds systemic vascular responsiveness. Fetal systemic vascular smooth muscle (VSM) exhibits an immature phenotype with decreased contractile protein contents, low 200-kDa myosin heavy chain (MHC) SM2,
Kristine E. Kamm +9 more
core +2 more sources
Umbilical cord hemangioma and pseudocyst with favorable fetal outcome
Clinical Case Reports, 2023 Key Clinical Message There is a high association between umbilical cord hemangiomas or cysts with fetal mortality. However, favorable outcome is possible with proper prenatal monitoring and care Abstract Umbilical cord hemangiomas are rare neoplasms of ...
Sikolia Wanyonyi +6 more
doaj +1 more source
Case Reports in Obstetrics and Gynecology, 2018 Background. Thrombosis of one of the umbilical arteries can be associated with adverse pregnancy outcomes such as stillbirth and severe intrauterine growth restriction (IUGR). Case.
Ali Alhousseini +5 more
doaj +1 more source