background: measuring of maternal serum pregnancy-associated plasma protein-a (papp-a) in first trimester can be a way for early detection of adverse prenatal outcome due to faulty placenta.objective: the aim was to determination of association between placental thickness in second trimester with low level of papp-a in first trimester.materials and methods: in this cohort study, serum papp-a of...

background: determination of oocyte fertilization and embryo quality are one of the most important purposes in art cycles. follicular fluid provides an important microenvironment for development of oocytes and some biochemical characteristics of the follicular fluid, such as pregnancy-associated plasma protein-a (papp-a), may play an important role in prediction of success rate of art. objectiv...

type 2 diabetes mellitus is associated with increased inflammation and accelerated atherosclerosis. the association of the pro-inflammatory and potentially pro-atherosclerotic molecule, pregnancy associated plasma protein-a (papp-a) with diabetes and vascular diseases remains to be further established. a total of 107 patients with type 2 diabetes and 101 healthy controls participated in this st...

A specific and highly sensitive radioimmunoassay for determination of pregnancy-associated plasma protein A in human serum is described. The minimum detection limit for this protein was 2.9 micrograms/L. The within- and between-assay coefficients of variation were 4.0 and 4.5%, respectively. The circulating protein was detected within 32 days of conception in eight normal pregnancies and within...

Background: Pregnancy-associated plasma protein-A (PAPP-A) and free β-human chorionic gonadotropin (free β-hCG) as valuable biochemical biomarkers are used to screen down syndrome, Edwards syndrome, and Patau syndrome in the first trimester of pregnancy. Closed immunoassay analyzers are regarded as sophisticated platforms to measure biochemical biomarkers. This study compared the performance of...

Background Accurate prevalence figures are not available, but it has been estimated that 1-2% of women have recurrent pregnancy loss (RPL), defined as three or more consecutive losses of intrauterine pregnancy in the first trimester. Half of whom have no identifiable cause. Recent studies of early pregnancy loss, preeclampsia, pregnancy complications such a hydatidiform mole suggests that these...