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Pregnancy associated plasma protein a

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https://www.readbyqxmd.com/read/29341830/pregnancy-related-hormones-progesterone-and-human-chorionic-gonadotrophin-upregulate-expression-of-maternal-plasma-gelsolin
#1
Renu Garg, Nagesh Peddada, Kunzes Dolma, Neeraj Khatri, Ashish Ashish
Plasma gelsolin (pGSN), a protein primarily involved in clearance of circulating actin filaments, is an upcoming novel biomarker. Its level changes in multiple disease and injury conditions, attributable mainly to its consumption during actin clearance, the endogenous regulation of its expression, however, remains elusive as well as unexplored. Here, we are reporting first isolation of the promoter region of pGSN gene and investigation of its transcriptional regulation during pregnancy (a natural process associated with a well programmed injury course of parturition)...
January 17, 2018: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/29334742/-diagnostic-and-prognostic-biomarkers-in-acute-coronary-syndrome
#2
Petr Kuběna, Jindřich Špinar, Milan Dastych, Petr Lokaj, Jiří Pařenica
Acute myocardial infarction (AMI) is an important cause of mortality and morbidity worldwide. Early diagnostics of this disease helps in the appropriate treatment of patients. Great attention is paid to the diagnostic and risk stratification of patients according to circulating biomarkers. There are a lot of scientific publications describing this topic. The aim of this article is to provide a comprehensive overview of the most important and most examined biomarkers in acute coronary syndrome. Meanwhile troponin takes a fundamental place for AMI diagnostic (mostly the high-sensitive methods) in preference to MB-fraction of creatine kinase and myoglobin...
2018: Vnitr̆ní Lékar̆ství
https://www.readbyqxmd.com/read/29318732/association-between-fetal-fraction-on-cell-free-dna-testing-and-first-trimester-markers-for-pre-eclampsia
#3
Daniel L Rolnik, Fabricio da Silva Costa, Timothy J Lee, Maximilian Schmid, Andrew C McLennan
AIMS: To evaluate the association of fetal fraction on cell-free DNA (cfDNA) testing with first trimester markers for pre-eclampsia and to investigate a possible association of low fetal fraction with increased risk for pre-eclampsia (PE) and fetal growth restriction (FGR). METHODS: This was a retrospective cohort study including all women with singleton pregnancies who had risk calculation for PE and FGR between 11+0 and 13+6 weeks' gestation and also decided to have cfDNA as a primary or secondary screening test for chromosomal abnormalities at any gestational age in two Fetal Medicine clinics in Sydney and Melbourne, Australia, between March 2013 and May 2017...
January 10, 2018: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/29282226/maternal-and-fetal-outcomes-of-pregnancies-in-women-with-atypical-hemolytic-uremic-syndrome
#4
Martina Gaggl, Christof Aigner, Dorottya Csuka, Ágnes Szilágyi, Zoltán Prohászka, Renate Kain, Natalja Haninger, Maarten Knechtelsdorfer, Raute Sunder-Plassmann, Gere Sunder-Plassmann, Alice Schmidt
Atypical HUS (aHUS) is a disorder most commonly caused by inherited defects of the alternative pathway of complement, or the proteins that regulate this pathway, and life-threatening episodes of aHUS can be provoked by pregnancy. We retrospectively and prospectively investigated 27 maternal and fetal pregnancy outcomes in 14 women with aHUS from the Vienna Thrombotic Microangiopathy Cohort. Seven pregnancies (26%) were complicated by pregnancy-associated aHUS (p-aHUS), of which three appeared to be provoked by infection, bleeding, and curettage, and three individuals were considered to have preeclampsia/HELLP syndrome before the definitive diagnosis of p-aHUS was made...
December 27, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/29280739/novel-modulators-of-the-growth-hormone-insulin-like-growth-factor-axis-pregnancy-associated-plasma-protein-a2-and-stanniocalcin-2
#5
Masanobu Fujimoto, Vivian Hwa, Andrew Dauber
Growth hormone (GH) and its mediator, insulin-like growth factor-1 (IGF-1), play a critical role in human growth. In circulation, IGF-1 is found in a ternary complex with IGF binding proteins (IGFBPs) and acid labile subunit (ALS) but little attention has been paid to the regulation of IGF-1 bioavailability. Recently, pregnancy-associated plasma protein-A2 (PAPP-A2) and stanniocalcin-2 (STC2) were identified as novel modulators of IGF-I bioavailability. PAPP-A2 is a protease which cleaves IGFBP-3 and -5, while STC2 inhibits PAPP-A and PAPP-A2 activity...
December 27, 2017: Journal of Clinical Research in Pediatric Endocrinology
https://www.readbyqxmd.com/read/29275822/screening-for-fetal-growth-restriction-using-fetal-biometry-combined-with-maternal-biomarkers
#6
REVIEW
Francesca Gaccioli, Irving L M H Aye, Ulla Sovio, D Stephen Charnock-Jones, Gordon C S Smith
Fetal growth restriction is a major determinant of perinatal morbidity and mortality. Screening for fetal growth restriction is a key element of prenatal care but it is recognized to be problematic. Screening using clinical risk assessment and targeting ultrasound to high-risk women is the standard of care in the United States and United Kingdom, but the approach is known to have low sensitivity. Systematic reviews of randomized controlled trials do not demonstrate any benefit from universal ultrasound screening for fetal growth restriction in the third trimester, but the evidence base is not strong...
December 22, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29274935/does-low-papp-a-predict-adverse-placenta-mediated-outcomes-in-a-low-risk-nulliparous-population-the-great-obstetrical-syndromes-gos-study
#7
Amélie Boutin, Cédric Gasse, Suzanne Demers, Geneviève Blanchet, Yves Giguère, Emmanuel Bujold
OBJECTIVE: First-trimester low concentration of pregnancy-associated plasma protein A (PAPP-A) has been associated with adverse perinatal outcomes in high-risk populations. This study aimed to estimate the ability of PAPP-A to identify adverse outcomes in a low-risk population. METHODS: The study investigators recruited nulliparous women with singleton pregnancy at their 11-13-week ultrasound scan. Serum samples were collected, and maternal PAPP-A concentration was measured using the B ⋅ R ⋅ A ⋅ H ⋅ M ⋅ S PAPP-A KRYPTOR (ThermoFisher Scientific, Hennigsdorf, Germany) automated assay...
December 21, 2017: Journal of Obstetrics and Gynaecology Canada: JOGC, Journal D'obstétrique et Gynécologie du Canada: JOGC
https://www.readbyqxmd.com/read/29273680/igf-system-in-sarcomas-a-crucial-pathway-with-many-unknowns-to-exploit-for-therapy
#8
Caterina Mancarella, Katia Scotlandi
The insulin-like growth factor (IGF) system has gained substantial interest due to its involvement in regulating cell proliferation, differentiation and survival during anoikis and after conventional and targeted therapies. However, results from clinical trials have been largely disappointing, with only a few but notable exceptions, such as trials targeting sarcomas, especially Ewing sarcoma. This review highlights key studies focusing on IGF signaling in sarcomas, specifically studies underscoring the properties that make this system an attractive therapeutic target, and identifies new relationships that may be exploited...
December 22, 2017: Journal of Molecular Endocrinology
https://www.readbyqxmd.com/read/29249827/schizophrenia-risk-and-urban-birth-are-associated-with-proteomic-changes-in-neonatal-dried-blood-spots
#9
Jason D Cooper, Sureyya Ozcan, Renee M Gardner, Nitin Rustogi, Susanne Wicks, Geertje F van Rees, F Markus Leweke, Christina Dalman, Håkan Karlsson, Sabine Bahn
In the present study, we tested whether there were proteomic differences in blood between schizophrenia patients after the initial onset of the disorder and controls; and whether those differences were also present at birth among neonates who later developed schizophrenia compared to those without a psychiatric admission. We used multiple reaction monitoring mass spectrometry to quantify 77 proteins (147 peptides) in serum samples from 60 first-onset drug-naive schizophrenia patients and 77 controls, and 96 proteins (152 peptides) in 892 newborn blood-spot (NBS) samples collected between 1975 and 1985...
December 18, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/29249625/genetic-disorders-of-gh-action-pathway
#10
Horacio M Domené, Gustavo Fierro-Carrión
While insensitivity to GH (GHI) is characterized by low IGF-I levels, normal or elevated GH levels, and lack of IGF-I response to GH treatment, IGF-I resistance is characterized by elevated IGF-I levels with normal/high GH levels. Several genetic defects are responsible for impairment of GH and IGF-I actions resulting in short stature that could affect intrauterine growth or be present in the postnatal period. The genetic defects affecting GH and/or IGF-I action can be divided into five different groups: GH insensitivity by defects affecting the GH receptor (GHR), the intracellular GH signaling pathway (STAT5B, STAT3, IKBKB, IL2RG, PIK3R1), the synthesis of insulin-like growth factors (IGF1, IGF2), the transport/bioavailability of IGFs (IGFALS, PAPPA2), and defects affecting IGF-I sensitivity (IGF1R)...
December 12, 2017: Growth Hormone & IGF Research
https://www.readbyqxmd.com/read/29244241/vitamin-d-and-gestational-diabetes-mellitus-a-systematic-review-based-on-data-free-of-hawthorne-effect
#11
Yanbo Zhang, Yunhui Gong, Hongmei Xue, Jingyuan Xiong, Guo Cheng
BACKGROUND: Gestational diabetes mellitus (GDM) is an increasingly prevalent disorder, associated with low blood vitamin D (VD) level. OBJECTIVES: To evaluate the relationship between VD and GDM. SEARCH STRATEGY: EMBASE, MEDLINE, Cochrane library and China Biology Medicine disc were searched till May 2017. The references of previous studies were screened. SELECTION CRITERIA: Observational studies on the relationship between VD and GDM free from Hawthorne effect and randomized controlled trials of VD supplementation during pregnancy for preventing or treating GDM were included...
December 15, 2017: BJOG: An International Journal of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/29238946/papp-a2-a-new-key-regulator-of-growth
#12
Magdalena Banaszak-Ziemska, Marek Niedziela
Short stature is the main problem that paediatric endocrinologists have to grapple with. Endocrine disorders account for only 5% of patients with short stature, but this is still one of the most common causes of reports to the endocrine clinic and hospitalisation in the endocrine department. A properly functioning growth hormone/insulin-like growth factor (GH/IGF) axis is one of the most important factors in proper growth. A lot of genetic defects in this axis lead to syndromes marked by impaired growth, like Laron syndrome, muta-tions in the STAT5B, insulin-like growth factor 1 (IGF1), and insulin-like growth factor 1 receptor (IGF1R) and mutations in the acid labile subunit (ALS)...
2017: Endokrynologia Polska
https://www.readbyqxmd.com/read/29229842/male-homosexuality-and-maternal-immune-responsivity-to-the-y-linked-protein-nlgn4y
#13
Anthony F Bogaert, Malvina N Skorska, Chao Wang, José Gabrie, Adam J MacNeil, Mark R Hoffarth, Doug P VanderLaan, Kenneth J Zucker, Ray Blanchard
We conducted a direct test of an immunological explanation of the finding that gay men have a greater number of older brothers than do heterosexual men. This explanation posits that some mothers develop antibodies against a Y-linked protein important in male brain development, and that this effect becomes increasingly likely with each male gestation, altering brain structures underlying sexual orientation in their later-born sons. Immune assays targeting two Y-linked proteins important in brain development-protocadherin 11 Y-linked (PCDH11Y) and neuroligin 4 Y-linked (NLGN4Y; isoforms 1 and 2)-were developed...
December 11, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29216009/the-first-trimester-aneuploidy-biochemical-markers-in-ivf-icsi-patients-have-no-additional-benefit-compared-to-spontaneous-conceptions-in-the-prediction-of-pregnancy-complications
#14
Iwona Szymusik, Przemyslaw Kosinski, Katarzyna Kosinska-Kaczynska, Damian Warzecha, Anetta Karwacka, Bartosz Kaczynski, Miroslaw Wielgos
OBJECTIVES: The aim of this study was to determine if the levels of biochemical aneuploidy markers in in vitro fertilisation (IVF)/intracytoplasmic sperm injection (ICSI) pregnancies differ from those in spontaneous pregnancies and to verify if biochemical markers could predict pregnancy outcome in IVF/ICSI gestations. METHODS: This was a prospective observational study performed in a group of 551 patients who underwent a combined first trimester prenatal screening (ultrasound scan and serum markers)...
December 7, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/29211611/pregnancy-associated-plasma-protein-a-papp-a-levels-in-patients-with-severe-allergic-asthma-are-reduced-by-omalizumab
#15
Ismet Bulut, Zeynep F Ozseker, Abdurrahman Coskun, Mustafa Serteser, Ibrahim Unsal
BACKGROUND: Remodeling is a crucial feature of severe asthma and may be associated with activation of the allergic cascade by immunoglobulin E (IgE). Omalizumab, an anti-IgE monoclonal antibody, effectively targets the severe allergic asthma phenotype. Pregnancy-associated plasma protein-A (PAPP-A) is an insulin-like growth factor binding protein-4 (IGFBP-4) protease, increasing local insulin-like growth factor (IGF)-1 concentrations, which in turn initiating a cascade involved in the regulation of cell growth, differentiation, and proliferation in various tissues...
December 6, 2017: Journal of Asthma: Official Journal of the Association for the Care of Asthma
https://www.readbyqxmd.com/read/29207696/correlation-of-pregnancy-associated-plasma-protein-a-and-zinc-with-calculated-risk-ratio-of-dual-test
#16
Indranil Ghoshal, Bolar Suryakanth Varashree, Vijetha Shenoy Belle, Krishnananda Prabhu
Introduction: First trimester screening by dual test is the most preferred method of antenatal screening. The detection rate of foetal aneuploidy using dual test is 95%. This test uses maternal serum free β human Chorionic Gonadotropin (free β hCG) and Pregnancy Associated Plasma Protein A (PAPP-A) along with maternal demographic and foetal sonographic indices to calculate risk for foetal aneuploidy. PAPP-A is a zinc binding metalloproteinase which is also responsible for placental development and foetal growth...
September 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/29197000/proteomics-method-to-identification-of-protein-profiles-in-exosomes
#17
Andrew Lai, Vyjayanthi Kinhal, Zarin Nuzhat, Ramkumar Menon, Gregory E Rice, Carlos Salomon
Exosomes are membrane-bound nanovesicles that transport molecular signals (e.g., proteins) between cells and are released from a wide range of cells, including the human placenta. Interestingly, the levels of exosomes present in maternal circulation are higher in preeclamptic pregnancies and their protein content profile change in response to the microenvironment milieu. Through the discovery of candidate biomarkers, mass spectrometry (MS)-based proteomics may provide a better understanding of the pathophysiology underlying pregnancy-associated disorders...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29187797/influence-of-centrifugation-conditions-on-the-results-of-77-routine-clinical-chemistry-analytes-using-standard-vacuum-blood-collection-tubes-and-the-new-bd-barricor-tubes
#18
Janne Cadamuro, Cornelia Mrazek, Alexander B Leichtle, Ulrike Kipman, Thomas K Felder, Helmut Wiedemann, Hannes Oberkofler, Georg M Fiedler, Elisabeth Haschke-Becher
Introduction: Although centrifugation is performed in almost every blood sample, recommendations on duration and g-force are heterogeneous and mostly based on expert opinions. In order to unify this step in a fully automated laboratory, we aimed to evaluate different centrifugation settings and their influence on the results of routine clinical chemistry analytes. Materials and methods: We collected blood from 41 healthy volunteers into BD Vacutainer PST II-heparin-gel- (LiHepGel), BD Vacutainer SST II-serum-, and BD Vacutainer Barricor heparin-tubes with a mechanical separator (LiHepBar)...
February 15, 2018: Biochemia Medica: časopis Hrvatskoga Društva Medicinskih Biokemičara
https://www.readbyqxmd.com/read/29174227/angiogenic-and-antiangiogenic-factors-in-preeclampsia
#19
REVIEW
Fernanda Rodrigues Helmo, Angela Maria Moed Lopes, Anna Cecília Dias Maciel Carneiro, Carolina Guissoni Campos, Polyana Barbosa Silva, Maria Luíza Gonçalves Dos Reis Monteiro, Laura Penna Rocha, Marlene Antônia Dos Reis, Renata Margarida Etchebehere, Juliana Reis Machado, Rosana Rosa Miranda Corrêa
BACKGROUND: Pre-eclampsia is a multifactorial hypertensive disorder that is triggered by placental insufficiency and that accounts for up to 15% of maternal deaths. In normal pregnancies, this process depends on the balance between the expression of angiogenic factors and antiangiogenic factors, which are responsible for remodeling the spiral arteries, as well as for neoangiogenesis and fetal development. PURPOSE: The aim of this review is to discuss the main scientific findings regarding the role of angiogenic and antiangiogenic factors in the etiopathogenesis of preeclampsia...
October 31, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/29153683/preeclampsia-is-associated-with-ace-i-d-polymorphism-obesity-and-oxidative-damage-in-mexican-women
#20
José A González-Garrido, José R García-Sánchez, José M Tovar-Rodríguez, Ivonne M Olivares-Corichi
OBJECTIVE: This study sought to determine whether the angiotensin-converting enzyme insertion/deletion (ACE I/D) polymorphism, obesity and oxidative damage are risk factors for the development of preeclampsia in Mexican women. STUDY DESIGN: A total of 66 women with preeclampsia (PE) and 37 women with normal pregnancies (NP) were included in the study. DNA was extracted from whole blood, and the ACE I/D polymorphism was evaluated by polymerase chain reaction. ACE activity and oxidative damage were assessed in plasma...
October 2017: Pregnancy Hypertension
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