The vasoactive effects of oxidative stress induced by hydrogen peroxide (H2O2) on human umbilical artery strips as well as the possible mechanisms involved are studied. Contraction responses to cumulative H2O2 (10 M 3 × 10 M) in endothelium intact and denuded umbilical arteries and responses to cumulative H2O2 after incubation with L-NAME (10 M) (n = 8), indomethacin (10 M) (n = 8) and verapami...

The value of early intrapartum umbilical artery Doppler velocimetry in the prediction of fetal compromise was studied. One hundred patients were recruited into the study and fetal compromise was diagnosed by abnormal first- or second-stage fetal heart rate traces, a 5-minute Apgar score less than 7, or the development of hypoxic ischaemic encephalopathy. Fetal compromise developed in 30 patient...

OBJECTIVES To examine whether single-nucleotide polymorphisms (SNPs) in VEGFA (-2578 C/A and +936 C/T) associate with small-for-gestational-age (SGA) pregnancies and to identify their effects on first-trimester placental VEGFA expression. DESIGN Multicenter prospective cohort study. SETTINGS Adelaide, Australia, and Auckland, New Zealand. PARTICIPANTS A total of 3234 nulliparous pregnant ...

Mid trimester fetal anatomy scan is a fundamental part of routine antenatal care. Some U/S soft markers or controversial U/S signs are seen during the scan and create some confusion regarding their relation to fetal chromosomal abnormalities. Example of these signs: echogenic focus in the heart, echogenic bowel, renal pyelectasis, ventriculomegaly, polydactely, club foot, choroid plexus cyst, s...

The bile acid patterns in the maternal and umbilical vein and artery serum samples were analysed by a two-step chromatographic method involving group separation by piperidinohydroxypropyl-Sephadex LH-20 and high-pressure liquid chromatography using immobilized 3 alpha-hydroxy steroid dehydrogenase. Glycochenodeoxycholate predominates in the maternal blood and taurochenodeoxycholate in the umbil...

coronary artery disease (cad) is the leading cause of mortality in many parts of the world. genome-wide association studies (gwas) have identified several genetic variants associated with cad in low-density lipoprotein receptor (ldlr) locus. this study was evaluated the possible association of genetic markers at ldlr locus with cad irrespective to lipid profile and as well as the association of...

AIM To examine the hypothesis that the maternal insulin-like growth factor system may constrain fetal growth. METHODS A prospective observational study of maternal serum insulin-like growth factor binding protein-1 (IGFBP-1) and fetal growth was undertaken in neonates with birthweights below the 5th centile. They had been classified either as having fetal growth restriction (FGR) due to place...

PURPOSE Single umbilical artery (SUA) is the most common malformation of the umbilical cord. However, there have been no studies on the ocular findings in SUA, except for one case report. This study aimed to investigate the ocular findings in children with SUA. METHODS Fourteen children (eight boys and six girls) with SUA were evaluated retrospectively. All children underwent a complete ophth...

background: coronary artery disease (cad) is a multifactorial and heterogenic disease. recently, genome-wide association studies have reported that rs1333040 (c/t) and rs1004638 (a/t) single nucleotide polymorphisms (snps) in the 9p21 locus have very strong association with cad. this study aimed to examine these associations in southwest of iran. methods: blood samples were collected from 200 c...