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Pregnancy associated plasma protein a

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https://www.readbyqxmd.com/read/28099747/observational-study-comparing-the-performance-of-first-trimester-screening-protocols-for-detecting-trisomy-21-in-a-north-indian-population
#1
Anita Kaul, Chanchal Singh, Rachna Gupta, Nidhi Arora, Abha Gupta
OBJECTIVE: To evaluate first-trimester screening protocols for detecting trisomy 21 in an Indian population. METHODS: The present prospective study collected data from women with singleton pregnancies and a crown-to-rump length of 45-84 mm who presented at the fetal medicine unit of a tertiary care center in North India between June 1, 2006, and December 31, 2015, for combined first-trimester screening. Maternal age, nuchal translucency, nasal bone, and maternal serum levels of free beta human chorionic gonadotropin and pregnancy-associated plasma protein A were assessed for calculating the risk of trisomy 21...
December 22, 2016: International Journal of Gynaecology and Obstetrics
https://www.readbyqxmd.com/read/28099695/low-maternal-pregnancy-associated-plasma-protein-a-during-the-first-trimester-of-pregnancy-and-pregnancy-outcomes
#2
Marja Kaijomaa, Leena Rahkonen, Veli-Matti Ulander, Esa Hämäläinen, Henrik Alfthan, Helene Markkanen, Seppo Heinonen, Vedran Stefanovic
OBJECTIVE: To assess the association between pregnancy-associated placental protein A (PAPP-A) levels in the first trimester of pregnancy and adverse pregnancy outcomes. METHOD: A retrospective study included data from a group of patients in the first trimester of pregnancy with PAPP-A levels below 0.3 multiples of median who attended the Helsinki University Hospital, Finland, between January 1, 2009 and December 31, 2012; an age-matched control group of patients with PAPP-A levels 0...
January 2017: International Journal of Gynaecology and Obstetrics
https://www.readbyqxmd.com/read/28079354/effect-of-excess-iodine-intake-on-thyroid-on-human-health
#3
Eftychia G Koukkou, Nikolaos D Roupas, Kostas B Markou
INTRODUCTION: The recommended daily intake of iodide, is 150 μg for adolescents and adults, 175 μg for pregnancy and 200 μg for lactation. Thyroid gland is an effective collector of iodine. EVIDENCE ACQUISITION: The active iodine uptake along the basolateral membrane of thyroid cell is followed by its transport to the apical edge of the cell and then to the follicle lumen. TSH acts through cAMP and stimulates NIS gene expression and protein synthesis. The major proportion of iodine in the thyroid gland is bound to Thyroglobulin...
January 12, 2017: Minerva Medica
https://www.readbyqxmd.com/read/28078509/psg9-promotes-angiogenesis-by-stimulating-vegfa-production-and-is-associated-with-poor-prognosis-in-hepatocellular-carcinoma
#4
Weiqi Rong, Lei Yang, Liyuan Yin, Yanning Gao, Ting Xiao, Shujun Cheng
Hepatocellular carcinoma (HCC) is a common malignant solid tumor characterized by rich vascularization. Pregnancy-specific glycoprotein 9 (PSG9) is a member of the carcinoembryonic antigen (CEA)/PSG family and is produced at high levels during pregnancy. We previously identified PSG9 as an HCC-related protein. However, the expression of PSG9 and its regulation during HCC carcinogenesis remain poorly explored. In the present study, we first found that the levels of PSG9 protein were significantly increased in the plasma of HCC patients...
January 4, 2017: Science China. Life Sciences
https://www.readbyqxmd.com/read/28063291/glucogenic-treatment-creates-an-optimal-metabolic-milieu-for-the-conception-period-in-ewes
#5
C Porcu, V Pasciu, S Succu, E Baralla, M E Manca, E Serra, G G Leoni, M Dattena, G C Bomboi, G Molle, S Naitana, F Berlinguer
This study determined the influence of a short-term glucogenic nutritional treatment on circulating concentrations of glucose, insulin, insulin-like growth factor 1 (IGF-1), nonesterified fatty acids (NEFA), and urea, and on their correspondent levels in follicular fluid (FF) collected 12 h after the end of the treatment. After estrous synchronization with intravaginal progestagen-impregnated sponges, 20 Sarda ewes were randomly allocated into two experimental groups (GLU and WAT) and, from day 7 to day 10 (day 0 = day of sponge removal), the GLU group was gavaged with a glycogenic mixture, whereas the WAT group was gavaged with water (control group)...
December 11, 2016: Domestic Animal Endocrinology
https://www.readbyqxmd.com/read/28061809/oxidative-stress-biomarkers-and-their-relationship-with-cytokine-concentrations-in-overweight-obese-pregnant-women-and-their-neonates
#6
María Hernández-Trejo, Araceli Montoya-Estrada, Yessica Torres-Ramos, Aurora Espejel-Núñez, Alberto Guzmán-Grenfell, Rosa Morales-Hernández, Maricruz Tolentino-Dolores, Estibalitz Laresgoiti-Servitje
BACKGROUND: Oxidative damage present in obese/overweight mothers may lead to further oxidative stress conditions or inflammation in maternal and cord blood samples. Thirty-four pregnant women/newborn pairs were included in this study to assess the presence of oxidative stress biomarkers and their relationship with serum cytokine concentrations. Oxidative stress biomarkers and antioxidant enzymes were compared between the mother/offspring pairs. The presence of 27 cytokines was measured in maternal and cord blood samples...
January 7, 2017: BMC Immunology
https://www.readbyqxmd.com/read/28043842/repeated-measures-of-inflammation-and-oxidative-stress-biomarkers-in-preeclamptic-and-normotensive-pregnancies
#7
Kelly K Ferguson, John D Meeker, Thomas F McElrath, Bhramar Mukherjee, David E Cantonwine
BACKGROUND: Preeclampsia is a prevalent and enigmatic disease, in part characterized by poor remodeling of the spiral arteries. However, preeclampsia does not always clinically present, even when remodeling has failed to occur. Hypotheses surrounding the 'second hit' that is necessary for the clinical presentation of the disease focus on maternal inflammation and oxidative stress. Yet, the studies to date that have investigated these factors have utilized cross-sectional study designs or small study populations...
December 30, 2016: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28035763/circulating-milk-fat-globule-epidermal-growth-factor-8-levels-are-increased-in-pregnancy-and-gestational-diabetes-mellitus
#8
Yuanyuan Li, Wenzhuo Ran, Jiaqiang Zhang, Shi Chen, Yihang Li, Deng Luo, Chen Wang, Weiping Jia
AIMS/INTRODUCTION: Milk fat globule-epidermal growth factor 8 (MFG-E8) is the key mediator in anti-inflammatory responses that facilitate phagocytosis of apoptotic cells and play an essential role in type 2 diabetes and pregnancy, both of which are under a low-grade inflammatory state. However, the action of MFG-E8 in gestational diabetes mellitus (GDM) is unclear. We measured for the first time plasma MFG-E8 levels in pregnancy and GDM, and elucidated possible relationships between its plasma levels and various metabolic parameters...
December 30, 2016: Journal of Diabetes Investigation
https://www.readbyqxmd.com/read/28035757/papp-a-a-promising-therapeutic-target-for-healthy-longevity
#9
REVIEW
Cheryl A Conover, Claus Oxvig
Pregnancy-associated plasma protein-A (PAPP-A) is a proteolytic enzyme that was discovered to increase local insulin-like growth factor (IGF) availability for receptor activation through cleavage of inhibitory IGF binding proteins (IGFBPs). Reduced IGF signaling has been associated with increased lifespan and healthspan. Therefore, inhibition of PAPP-A represents a novel approach to indirectly decrease the availability of bioactive IGF. Here, we will review data in support of PAPP-A as a therapeutic target to promote healthy longevity...
December 29, 2016: Aging Cell
https://www.readbyqxmd.com/read/28034366/pregnancy-associated-plasma-protein-a-and-its-role-in-cardiovascular-disease-biology-experimental-clinical-evidences-and-potential-therapeutic-approaches
#10
Francesca Ziviello, Stefano Conte, Giovanni Cimmino, Ferdinando Carlo Sasso, Bruno Trimarco, Plinio Cirillo
Pregnancy-Associated Plasma Protein-A (PAPP-A) is a zinc-binding metalloproteinase protein produced by placental syncytio-trophoblasts and secreted into the maternal circulation where its concentration progressively increases until term. In recent years, PAPP-A has been studied for its potential involvement in cardiovascular (CV) disease. However, all those studies did not provide a clear view to identify the pathophysiological links between PAPP-A plasma levels and the occurrence of CV events. In this review, starting from a complete description of PAPP-A structure and biology, we present an updated overview of experimental as well as clinical evidence on the role of this metalloproteinase in CV disease...
December 30, 2016: Current Vascular Pharmacology
https://www.readbyqxmd.com/read/28027672/relationship-between-first-trimester-aneuploidy-screening-test-serum-analytes-and-placenta-accreta
#11
Barış Büke, Hatice Akkaya, Sibel Demir, Sermet Sağol, Deniz Şimşek, Güneş Başol, Burcu Barutçuoğlu
OBJECTIVE: The aim of this study is to determine whether there is a relationship between first trimester serum pregnancy-associated plasma protein A (PAPP-A) and free beta human chorionic gonadotropin (fβhCG) MoM values and placenta accreta in women who had placenta previa. STUDY DESIGN: A total of 88 patients with placenta previa who had first trimester aneuploidy screening test results were enrolled in the study. Nineteen of these patients were also diagnosed with placenta accreta...
December 27, 2016: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28024118/maternal-fetal-cholesterol-transport-in-the-second-half-of-mouse-pregnancy-does-not-involve-lrp2
#12
Mathijs V Zwier, Maria E Baardman, Theo H van Dijk, Angelika Jurdzinski, Lambertus J Wisse, Vincent W Bloks, Rolf M F Berger, Marco C DeRuiter, Albert K Groen, Torsten Plösch
AIM: Lipoprotein related receptor protein type 2 (LRP2) is highly expressed on both yolk sac and placenta. Mutations in the corresponding gene are associated with severe birth defects in humans, known as Donnai-Barrow syndrome. We here characterized the contribution of LRP2 and maternal plasma cholesterol availability to maternal-fetal cholesterol transport and fetal cholesterol levels in utero in mice. METHODS: Lrp2(+/-) mice were mated heterozygously to yield fetuses of all 3 genotypes...
December 26, 2016: Acta Physiologica
https://www.readbyqxmd.com/read/28012455/maternal-obesity-alters-brain-derived-neurotrophic-factor-bdnf-signaling-in-the-placenta-in-a-sexually-dimorphic-manner
#13
Calais S Prince, Alina Maloyan, Leslie Myatt
INTRODUCTION: Obesity is a major clinical problem in obstetrics being associated with adverse pregnancy outcomes and fetal programming. Brain derived neurotrophic factor (BDNF), a validated miR-210 target, is necessary for placental development, fetal growth, glucose metabolism, and energy homeostasis. Plasma BDNF levels are reduced in obese individuals; however, placental BDNF has yet to be studied in the context of maternal obesity. In this study, we investigated the effect of maternal obesity and sexual dimorphism on placental BDNF signaling...
January 2017: Placenta
https://www.readbyqxmd.com/read/28012202/association-of-serum-papp-a-levels-in-first-trimester-with-small-for-gestational-age-and-adverse-pregnancy-outcomes-systematic-review-and-meta-analysis
#14
R Katie Morris, Ashwini Bilagi, Pooja Devani, Mark D Kilby
OBJECTIVES: To determine association, and predictive ability, of first trimester maternal serum pregnancy associated plasma protein A (PAPP-A) with adverse pregnancy outcomes. METHOD: Searches of Medline, Embase and CINAHL (inception-September 2015) for studies including pregnant women with first trimester PAPP-A and assessment of pregnancy outcomes.Study characteristics, quality and results extracted. Meta-analysis of odds ratios (OR), and likelihood ratios (LR) and 95% confidence intervals (CI)...
December 23, 2016: Prenatal Diagnosis
https://www.readbyqxmd.com/read/28006080/crown-rump-length-audit-plots-with-the-use-of-operator-specific-papp-a-and-%C3%A3-hcg-median-mom
#15
Joan Sabria, Laura Guirado, Isabel Miró, Maria Dolors Gómez-Roig, Antoni Borrell
OBJECTIVE: Audit the crown-rump length (CRL) measurements taken at 11-13 weeks scan, using operator-specific median multiples of the median (MoM) for pregnancy-associated plasma protein-A (PAPP-A) and free ß-human chorionic gonadotropin (ß-hCG) plots, to identify deviations potentially related to a systematic CRL bias. METHODS: Study population included consecutive singleton pregnancies undergoing first trimester combined screening, scanned by sonologists with at least 100 scans, during the 2011-12 period...
December 22, 2016: Prenatal Diagnosis
https://www.readbyqxmd.com/read/27987350/influence-of-beh%C3%A3-et-s-disease-on-first-and-second-trimester-serum-screening-markers
#16
Zehra Vural Yılmaz, Gülenay Gençosmanoğlu Türkmen, Elif Yılmaz, Korkut Dağlar, Ayşe Kırbaş, Cem Sanhal, Aykan Yücel, Dilek Uygur
AIM: Behçet's disease (BD) is a rare and multisystemic vasculitis disease. In this study, we investigated whether BD had any effect on the biochemical components of first and second trimester aneuploidy screening tests. METHODS: A case-control retrospective study was conducted with 32 pregnant women with BD and 60 healthy pregnant women as controls. All pregnant womens' first trimester maternal serum pregnancy-associated plasma protein-A, free β-human chorionic gonadotropin and second trimester serum alpha-fetoprotein, unconjugated estriol and total human chorionic gonadotropin levels were examined from medical records...
December 17, 2016: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/27939474/evaluation-of-fetal-hypermethylated-rassf1a-in-pre-eclampsia-and-its-relationship-with-placental-protein-13-pregnancy-associated-plasma-protein-a-and-urine-protein
#17
Seema Saraswathy, Kavita Sahai, Tribhuvan Pal Yadav, Devendra Arora, Suman Lata Mendiratta, Samar Husain Naqvi, Shilpie Biswas, Manu Krishnan, Kurian Mathew Abraham
OBJECTIVES: Cell free fetal DNA (cffDNA) and its hypermethylated RASSF1A gene signify a recent advancement in non-invasive prenatal diagnosis of feto-placental anomalies like pre-eclampsia. The study uses hypermethylated RASSF1A gene to quantify cffDNA and to assess its relationship with placental and urine proteins in pre-eclampsia cases. DESIGN AND METHODS: DNA was isolated from plasma samples of clinically diagnosed cases of pre-eclampsia (n=103) and normal pregnancy (n=616) from 21weeks of gestation...
October 2016: Pregnancy Hypertension
https://www.readbyqxmd.com/read/27939466/the-utility-of-first-trimester-uterine-artery-doppler-placental-volume-and-papp-a-levels-alone-and-in-combination-to-predict-preeclampsia
#18
Burak Yücel, Ali Gedikbasi, Oznur Dündar, Yusuf Olgac, Dogukan Yıldırım, Gokhan Yıldırım, Ibrahim Polat
In this study, we aimed to evaluate the detection of pre-eclampsia (PE) by integrating uterine artery Doppler, placental volume, and pregnancy-associated plasma protein A (PAPP-A) levels in the first trimester. We prospectively recruited 602 women that underwent 11-13weeks' aneuploidy screening. The mean pulsatility index (PI) of the uterine arteries and the placental volume were measured by ultrasonography. Measurement of PAPP-A levels has been performed at the same day of ultrasonographic examinations. The 90th percentile of uterine artery PI and the 10th percentile of placental volume and PAPP-A levels were used as cut-offs...
October 2016: Pregnancy Hypertension
https://www.readbyqxmd.com/read/27936130/angiogenic-proteins-placental-weight-and-perinatal-outcomes-among-pregnant-women-in-tanzania
#19
Chloe R McDonald, Anne M Darling, Enju Liu, Vanessa Tran, Ana Cabrera, Said Aboud, Willy Urassa, Kevin C Kain, Wafaie W Fawzi
INTRODUCTION: Placental vascular development, and ultimately placental weight, is essential to healthy fetal development. Here, we examined placental weight in a cohort of Tanzanian women in association with angiogenic proteins known to regulate placental vascular development and perinatal outcomes. METHODS: A total of n = 6579 women with recorded placental weight were included in this study. The relative risk of adverse perinatal outcomes (Apgar score, death, asphyxia, respiratory distress, seizures, pneumonia and sepsis) was compared between placental weight in the bottom and top 10th percentiles...
2016: PloS One
https://www.readbyqxmd.com/read/27935854/second-trimester-maternal-serum-markers-in-the-prediction-of-preeclampsia
#20
Qiong Luo, Xiujun Han
AIM: To determine whether late second-trimester maternal serum biomarkers are useful for the prediction of preeclampsia during the third trimester, a case-control study including 33 preeclamptic and 71 healthy pregnancies was conducted. Maternal serum concentrations of placental protein 13 (PP13), pregnancy-associated plasma protein (PAPP-A), pentraxin3 (PTX3), soluble FMS-like tyrosine kinase-1 (sFlt-1), myostatin and follistatin-like-3 (FSLT-3) were measured at 24-28 weeks' gestation...
December 9, 2016: Journal of Perinatal Medicine
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