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https://www.readbyqxmd.com/read/29455249/multiple-vertebral-fractures-following-osteoporosis-treatment-discontinuation-a-case-report-after-long-term-odanacatib
#1
N Binkley, D Krueger, A E de Papp
INTRODUCTION: Case reports of women sustaining multiple vertebral fractures (VF) soon afterdenosumab discontinuation are accumulating. METHODS: We report a woman with five new vertebral fractures in ~8 months following discontinuation of long-term odanacatib (ODN), an experimental cathepsin K inhibitor. RESULTS: DXA examination demonstrated an ~12% decline in bone mineral density (BMD) and ~9% decline in trabecular bone score (TBS) since ODN discontinuation...
February 18, 2018: Osteoporosis International
https://www.readbyqxmd.com/read/29439729/application-of-neural-networks-for-classification-of-patau-edwards-down-turner-and-klinefelter-syndrome-based-on-first-trimester-maternal-serum-screening-data-ultrasonographic-findings-and-patient-demographics
#2
Aida Catic, Lejla Gurbeta, Amina Kurtovic-Kozaric, Senad Mehmedbasic, Almir Badnjevic
BACKGROUND: The usage of Artificial Neural Networks (ANNs) for genome-enabled classifications and establishing genome-phenotype correlations have been investigated more extensively over the past few years. The reason for this is that ANNs are good approximates of complex functions, so classification can be performed without the need for explicitly defined input-output model. This engineering tool can be applied for optimization of existing methods for disease/syndrome classification. Cytogenetic and molecular analyses are the most frequent tests used in prenatal diagnostic for the early detection of Turner, Klinefelter, Patau, Edwards and Down syndrome...
February 13, 2018: BMC Medical Genomics
https://www.readbyqxmd.com/read/29421218/the-safety-and-tolerability-of-topically-delivered-kynurenic-acid-in-humans-a-phase-1-randomized-double-blind-clinical-trial
#3
A Papp, R Hartwell, M Evans, A Ghahary
Scarring is a consequence of biological tissue repair following trauma. Currently there are no generally agreed ways to prevent scarring. Recently, kynurenic acid has shown to be a potent modulator of extracellular matrix deposition and remodeling. Kynurenic acid can reduce matrix deposition and other fundamental characteristics of fibrosis in vitro and in vivo. Specifically, kynurenic acid has shown to increase MMP-1 activity and subsequently reduce collagen deposition in a rabbit ear scar model. In the current study kynurenic acid cream in different concentrations was topically applied on healthy skin on volunteers to assess skin reactions and skin sensitivity in both acute and chronic application settings...
February 5, 2018: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29398370/depot-specific-and-gh-dependent-regulation-of-igf-binding-protein-4-pregnancy-associated-plasma-protein-a-and-stanniocalcin-2-in-murine-adipose-tissue
#4
Rikke Hjortebjerg, Darlene E Berryman, Ross Comisford, Edward O List, Claus Oxvig, Mette Bjerre, Jan Frystyk, John J Kopchick
INTRODUCTION: Pregnancy-associated plasma protein-A (PAPP-A) stimulates insulin-like growth factor (IGF)-I action through proteolytic cleavage of IGF binding protein-4 (IGFBP-4). Recently, stanniocalcin-2 (STC2) was discovered as an inhibitor of PAPP-A. Most members of the IGF system are expressed in adipose tissue (AT), but there is a relative paucity of information on the distribution of IGFBP-4, PAPP-A, and STC2 in different AT depots. Since IGF-I expression in AT is highly GH-dependent, we used bovine GH transgenic (bGH) and GH receptor knockout (GHR-/-) mice to investigate AT depot-specific expression patterns of IGFBP-4, PAPP-A, and STC2, and whether the regulation is GH-dependent...
February 2, 2018: Growth Hormone & IGF Research
https://www.readbyqxmd.com/read/29396076/-what-are-the-real-purpose-and-scope-of-screening-for-aneuploidy
#5
T Quibel, P Rozenberg
In France, the recommended method for Down syndrome screening is the first trimester combined test, the risk assessment, based on maternal age, ultrasound measurement of fetal nuchal translucency and maternal serum markers (free β-hCG and PAPP-A). The Down syndrome detection rate is 78.7% at a screen positive rate of 5%. However, the best screening test is the integrated test using a combination of first trimester combined test and second trimester quadruple test (serum α-fetoprotein, human chorionic gonadotropin, unconjugated E3, and dimeric inhibin-A) and being able to achieve a detection rate for Down syndrome of approximately 96% at a screen-positive rate of 5%...
January 27, 2018: Gynecologie, Obstetrique, Fertilite & Senologie
https://www.readbyqxmd.com/read/29391672/first-trimester-inflammatory-markers-for-risk-evaluation-of-pregnancy-hypertension
#6
Karuna Sharma, Ritu Singh, Manisha Kumar, Usha Gupta, Vishwajeet Rohil, Jayashree Bhattacharjee
Introduction: Hypertension in pregnancy is one of the potential causes of maternal and fetal morbidity and mortality. It complicates 7-10% of pregnancies. As of today, prediction of pregnancy hypertension is not possible. Aim and Objectives: Evaluation of pregnancy associated plasma protein-A (PAPP-A), free β-human chorionic gonadotropin, tumor necrosis factor-α (TNF-α) and interferon gamma (INF-γ) in establishing a biomarker or combination of biomarkers for the early identification of pregnancy hypertension...
February 2018: Journal of Obstetrics and Gynaecology of India
https://www.readbyqxmd.com/read/29318732/association-between-fetal-fraction-on-cell-free-dna-testing-and-first-trimester-markers-for-pre-eclampsia
#7
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/29280739/novel-modulators-of-the-growth-hormone-insulin-like-growth-factor-axis-pregnancy-associated-plasma-protein-a2-and-stanniocalcin-2
#8
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 30, 2017: Journal of Clinical Research in Pediatric Endocrinology
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
#9
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
#10
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/29238946/papp-a2-a-new-key-regulator-of-growth
#11
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/29226487/prenatal-diagnostic-testing-and-atypical-chromosome-abnormalities-following-combined-first-trimester-screening-implications-for-contingent-models-of-non-invasive-prenatal-testing
#12
Anthea Lindquist, Alice Poulton, Jane Halliday, Lisa Hui
OBJECTIVES: To perform a population-based analysis of a combined first trimester screening (CFTS) cohort for (i) changes in uptake of invasive prenatal diagnosis by CFTS risk, and (ii) prevalence and methods of ascertainment of atypical chromosome abnormalities. METHODS: Retrospective cohort study of state-wide prenatal datasets from Victoria, Australia. A three-step approach was undertaken: i) record-linkage between serum screening and diagnostic results; ii) comparison of rates of diagnostic testing by CFTS risk categories in a 2014-15 CFTS cohort with a historical cohort from 2002-04; (iii) detailed analysis of atypical abnormalities from 2014-15 by CFTS risk, individual serum analyte level and indications for diagnostic testing...
December 11, 2017: Ultrasound in Obstetrics & Gynecology
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
#13
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
#14
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
#15
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/29186068/study-of-structure-and-permeability-relationship-of-flavonoids-in-caco-2-cells
#16
Yajing Fang, Weiwei Cao, Mengmeng Xia, Siyi Pan, Xiaoyun Xu
Flavonoids exhibit a broad range of biological activities. However, poor absorption of some flavonoids is a major limitation for use of flavonoids as nutraceuticals. To investigate the structure requirements for flavonoids intestinal absorption, transepithelial transport and cellular accumulation (CA) of 30 flavonoids were determined using the Caco-2 cell monolayer. The bilateral permeation of five types of flavonoids followed the order: flavanones ≥ isoflavones > flavones ≥ chalcones > flavonols...
November 29, 2017: Nutrients
https://www.readbyqxmd.com/read/29162956/risk-assessment-at-11-14-week-antenatal-visit-a-tertiary-referral-center-experience-from-south-india
#17
Anusha Vellamkondu, Akhila Vasudeva, Rajeshwari G Bhat, Asha Kamath, Sapna V Amin, Lavanya Rai, Pratap Kumar
Background: Present study carried out in a tertiary referral hospital in South India attempts to determine the predictive value of integrated screening at 11-14-week antenatal visit. Objectives: To determine the detection rate of fetal abnormalities at 11-14 weeks and also to predict the placental dysfunction disorders based on early integrated evaluation. Method: Integrated screening performed on 440 women between 11 and 14 weeks, including detailed maternal history [medical history, bad obstetric history (BOH)], body mass index (BMI), mean arterial pressure (MAP), detailed ultrasound and maternal serum biochemistry as part of combined first-trimester screening for aneuploidy...
December 2017: Journal of Obstetrics and Gynaecology of India
https://www.readbyqxmd.com/read/29144175/pregnancy-associated-plasma-protein-a-as-a-prognostic-biomarker-of-all-cause-mortality-and-cardiovascular-events-in-patients-presenting-with-chest-pain-a-systematic-review
#18
Christos A Papanastasiou, Damianos G Kokkinidis, Evangelos K Oikonomou, Vasileios G Mantziaris, T Raymond Foley, Theodoros D Karamitsos, Stephen W Waldo, Ehrin J Armstrong
AIM: Novel biomarkers have been proposed for identification of patients at greater risk of future adverse events among those presenting with chest pain. In this review, we aim to elucidate the ability of pregnancy associated plasma protein-A (PAPP-A) to predict mortality and other cardiovascular events in this patient population. METHODS: A literature search of the electronic databases Medline, Scopus, Cochrane Library and ClinicalTrials.gov was performed in order to identify studies investigating the utility of PAPP-A to predict mortality and adverse cardiovascular events in patients with chest pain...
November 16, 2017: Biomarkers: Biochemical Indicators of Exposure, Response, and Susceptibility to Chemicals
https://www.readbyqxmd.com/read/29143991/genetic-and-non-genetic-risk-factors-for-pre-eclampsia-an-umbrella-review-of-systematic-reviews-and-meta-analyses-of-observational-studies
#19
REVIEW
Konstantinos Giannakou, Evangelos Evangelou, Stefania I Papatheodorou
OBJECTIVE: To summarize evidence from the literature on the risk factors associated with preeclampsia, assess the presence of statistical biases and identify associations with robust evidence. METHODS: We searched PubMed and ISI Web of Science from inception to October, 2016, to identify systematic reviews and meta-analyses of observational studies examining associations between genetic and non-genetic risk factors for preeclampsia. For each meta-analysis we estimated the summary effect size by random-effects and fixed-effects models, the 95% confidence interval and the 95% prediction interval...
November 16, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/29090507/implications-of-failure-to-achieve-a-result-from-prenatal-maternal-serum-cell-free-dna-testing-a-historical-cohort-study
#20
N Chan, M-E Smet, R Sandow, F da Silva Costa, A McLennan
OBJECTIVE: To investigate the pregnancy outcomes in a cohort of women who failed to obtain a result in non-invasive prenatal testing (NIPT). DESIGN: Historical cohort study. SETTING: A multicentre private practice in Sydney, Australia. POPULATION: Women who failed to obtain a result from NIPT (n = 131). METHODS: The maternal characteristics, antenatal investigations and pregnancy outcomes for these women were compared with those who obtained a result at the same practice and to the general Australian obstetric population...
November 1, 2017: BJOG: An International Journal of Obstetrics and Gynaecology
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