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soluble tyrosine kinase 1

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https://www.readbyqxmd.com/read/28216083/maternal-vitamin-d-sufficiency-and-reduced-placental-gene-expression-in-angiogenic-biomarkers-related-to-comorbidities-of-pregnancy
#1
Elizabeth V Schulz, Lori Cruze, Wei Wei, John Gehris, Carol L Wagner
INTRODUCTION: Maternal circulating 25-hydroxyvitamin D [25(OH)D] has been shown to optimize production of 1,25-dihydroxyvitamin D [1,25(OH)2D] during pregnancy at approximately 100nmoles/L, which has pronounced effects on fetal health outcomes. Additionally, associations are noted between low maternal 25(OH)D concentrations and vascular pregnancy complications, such as preeclampsia. To further elucidate the effects of vitamin D activity in pregnancy, we investigated the role of maternal 25(OH)D, the nutritional indicator of vitamin D status, in relation to placental maintenance and, specifically, expression of placental gene targets related to angiogenesis and vitamin D metabolism...
February 12, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28208809/a-lipid-emulsion-reverses-toxic-dose-bupivacaine-induced-vasodilation-during-tyrosine-phosphorylation-evoked-contraction-in-isolated-rat-aortae
#2
Seong-Ho Ok, Soo Hee Lee, Seong-Chun Kwon, Mun Hwan Choi, Il-Woo Shin, Sebin Kang, Miyeong Park, Jeong-Min Hong, Ju-Tae Sohn
The goal of this in vitro study was to examine the effect of a lipid emulsion on toxic-dose bupivacaine-induced vasodilation in a model of tyrosine phosphatase inhibitor sodium orthovanadate-induced contraction in endothelium-denuded rat aortae and to elucidate the associated cellular mechanism. The effect of a lipid emulsion on vasodilation induced by a toxic dose of a local anesthetic during sodium orthovanadate-induced contraction was examined. In addition, the effects of various inhibitors, either bupivacaine alone or a lipid emulsion plus bupivacaine, on protein kinase phosphorylation induced by sodium orthovanadate in rat aortic vascular smooth muscle cells was examined...
February 13, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28199380/the-effects-of-pravastatin-on-the-normal-human-placenta-lessons-from-ex-vivo-models
#3
Adelina Balan, Irit Szaingurten-Solodkin, Shani S Swissa, Valeria Feinshtein, Mahmoud Huleihel, Gershon Holcberg, Doron Dukler, Ofer Beharier
INTRODUCTION: Research in animal models and preliminary clinical studies in humans support the use of pravastatin for the prevention of preeclampsia. However, its use during pregnancy is still controversial due to limited data about its effect on the human placenta and fetus. METHODS: In the present study, human placental cotyledons were perfused in the absence or presence of pravastatin in the maternal reservoir (PraM). In addition, placental explants were treated with pravastatin for 5, 24 and 72 h under normoxia and hypoxia...
2017: PloS One
https://www.readbyqxmd.com/read/28167687/prediction-of-preeclampsia-using-the-soluble-fms-like-tyrosine-kinase-1-to-placental-growth-factor-ratio-a-prospective-cohort-study-of-unselected-nulliparous-women
#4
Ulla Sovio, Francesca Gaccioli, Emma Cook, Martin Hund, D Stephen Charnock-Jones, Gordon C S Smith
We sought to assess the ratio of sFlt-1 (soluble fms-like tyrosine kinase 1) to PlGF (placental growth factor) in maternal serum as a screening test for preeclampsia in unselected nulliparous women with a singleton pregnancy. We studied 4099 women recruited to the POP study (Pregnancy Outcome Prediction) (Cambridge, United Kingdom). The sFlt-1:PlGF ratio was measured using the Roche Cobas e411 platform at ≈20, ≈28, and ≈36 weeks of gestational age (wkGA). Screen positive was defined as an sFlt-1:PlGF ratio >38, but higher thresholds were also studied...
February 6, 2017: Hypertension
https://www.readbyqxmd.com/read/28164532/clinical-assessment-of-soluble-fms-like-tyrosine-kinase-1-placental-growth-factor-ratio-for-the-diagnostic-and-the-prognosis-of-preeclampsia-in-the-second-trimester
#5
Dalenda Chelli, Asma Hamdi, Sarah Saoudi, Amel A Jenayah, Armand Zagre, Haithem Jguerim, Channoufi Bedis, Ezzeddine Sfar
BACKGROUND: Preeclampsia is one of the most common and serious complications of pregnancy. Various reports have demonstrated that disturbances in angiogenic and antiangiogenic factors are implicated in its pathogenesis and have possible relevance in its diagnosis and prognosis. METHODS: In this case-control study, we enrolled 73 patients with 34 preeclamptic cases diagnosed according to clinical criteria and dosing of proteinuria. The cases were matched to controls at the same age and parity...
October 1, 2016: Clinical Laboratory
https://www.readbyqxmd.com/read/28155021/anti-angiogenesis-and-preeclampsia-in-2016
#6
REVIEW
Susanne Schrey-Petersen, Holger Stepan
PURPOSE OF REVIEW: Preeclampsia remains one of the most important complications in pregnancy worldwide. With this review, we aim to give an overview on important research findings over the last years and their effects on current clinical management. RECENT FINDINGS: The association between preeclampsia and altered angiogenesis is nowadays widely accepted. Only during the last years, assessment of angiogenic factors such as the soluble fms-like tyrosine kinase-1-to-placental growth factor (sFlt-1/PlGF) ratio has become available to everyday clinical practice with commercially available automated measurements...
January 2017: Current Hypertension Reports
https://www.readbyqxmd.com/read/28153659/enoxaparin-for-the-prevention-of-preeclampsia-and%C3%A2-intrauterine-growth-restriction-in-women-with%C3%A2-a%C3%A2-history-%C3%A2-a%C3%A2-randomized-trial
#7
Katie M Groom, Lesley M McCowan, Laura K Mackay, Arier C Lee, Joanne M Said, Stefan C Kane, Susan P Walker, Thijs E van Mens, Natalie J Hannan, Stephen Tong, Larry W Chamley, Peter R Stone, Claire McLintock
BACKGROUND: Preeclampsia and small-for-gestational-age pregnancy are major causes of maternal and perinatal morbidity and mortality. Women with a previous pregnancy affected by these conditions are at an increased risk of recurrence in a future pregnancy. Past trials evaluating the effect of low-molecular-weight heparin for the prevention of recurrence of preeclampsia and small-for-gestational-age pregnancy have shown conflicting results with high levels of heterogeneity displayed when trials were compared...
January 30, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28133834/proposed-clinical-management-of-pregnancies-after-combined-screening-for-preeclampsia-at-35-37-weeks-gestation
#8
Anca M Panaitescu, David Wright, Anna Militello, Ranjit Akolekar, Kypros H Nicolaides
OBJECTIVE: To estimate the patient-specific risk of preeclampsia (PE) at 35-37 weeks' gestation by a combination of maternal characteristics and medical history with multiple of the median (MoM) values of mean arterial pressure (MAP), uterine artery pulsatility index (UTPI), serum placental growth factor (PLGF) and serum soluble fms-like tyrosine kinase-1 (sFLT-1) and stratify women into high-, intermediate- and low-risk management groups. METHODS: This was a prospective observational study in women attending for a third-trimester ultrasound scan at 35-37 weeks as part of routine pregnancy care...
January 29, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28133831/proposed-clinical-management-of-pregnancies-after-combined-screening-for-preeclampsia-at-19-24-weeks-gestation
#9
Magdalena Litwinska, David Wright, Tunay Efeturk, Irene Ceccacci, Kypros H Nicolaides
OBJECTIVE: To estimate the patient-specific risk of preeclampsia (PE) at 19-24 weeks' gestation by a combination of maternal characteristics and medical history with multiple of the median (MoM) values of mean arterial pressure (MAP), uterine artery pulsatility index (UTPI), serum placental growth factor (PLGF) and serum soluble fms-like tyrosine kinase-1 (sFLT-1) and stratify women into high-, intermediate- and low-risk management groups. The high-risk group, which would contain almost all cases of PE at <32 weeks, would require close monitoring for high blood pressure and proteinuria at 24-31 weeks...
January 29, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28126966/obstetric-antiphospholipid-syndrome-early-variations-of-angiogenic-factors-are-associated-with-adverse-outcomes-the-noh-angio-observational-cohort-study
#10
Éva Cochery-Nouvellon, Érick Mercier, Sylvie Bouvier, Jean-Pierre Balducchi, Isabelle Quéré, Antonia Perez-Martin, Eve Mousty, Vincent Letouzey, Jean-Christophe Gris
The prognostic value of angiogenic factors in newly pregnant women with obstetric antiphospholipid syndrome has not been documented. We observed 513 obstetric antiphospholipid syndromes who experienced three consecutive spontaneous abortions before the 10th week of gestation or one fetal loss at or beyond the 10th week. We assessed the plasma concentrations of the proangiogenic factor placenta growth factor and of the antiangiogenic factor soluble fms-like tyrosine kinase-1 on the eve and on the 4th day of the low-molecular weight heparin-low dose aspirin treatment...
January 25, 2017: Haematologica
https://www.readbyqxmd.com/read/28121958/circulating-angiogenic-factors-are-related-to-the-severity-of-gestational-hypertension-and-preeclampsia-and-their-adverse-outcomes
#11
Alfredo Leaños-Miranda, Francisco Méndez-Aguilar, Karla Leticia Ramírez-Valenzuela, Marilyn Serrano-Rodríguez, Guadalupe Berumen-Lechuga, Carlos José Molina-Pérez, Irma Isordia-Salas, Inova Campos-Galicia
Gestational hypertension (GH) and preeclampsia (PE) are characterized by an imbalance in angiogenic factors. However, the relationship among these factors with the severity of hypertensive disorders of pregnancy (HDP) and adverse outcomes are not fully elucidated. We examined whether these biomarkers are related with the severity of HDP and adverse outcomes.Using a cross-sectional design, serum concentrations of placental growth factor (PlGF), soluble fms-like tyrosine kinase-1 (sFlt-1), and soluble endoglin were determined in 764 pregnant women: 75 healthy pregnant, 83 with mild GH (mGH), 105 with severe GH (sGH), 122 with mild PE (mPE), and 379 with severe PE (sPE)...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28115513/proton-pump-inhibitors-decrease-soluble-fms-like-tyrosine-kinase-1-and-soluble-endoglin-secretion-decrease-hypertension-and-rescue-endothelial-dysfunction
#12
Kenji Onda, Stephen Tong, Sally Beard, Natalie Binder, Masanaga Muto, Sevvandi N Senadheera, Laura Parry, Mark Dilworth, Lewis Renshall, Fiona Brownfoot, Roxanne Hastie, Laura Tuohey, Kirsten Palmer, Toshihiko Hirano, Masahito Ikawa, Tu'uhevaha Kaitu'u-Lino, Natalie J Hannan
Preeclampsia is a severe complication of pregnancy. Antiangiogenic factors soluble fms-like tyrosine kinase-1 (sFlt-1) and soluble endoglin are secreted in excess from the placenta, causing hypertension, endothelial dysfunction, and multiorgan injury. Oxidative stress and vascular inflammation exacerbate the endothelial injury. A drug that can block these pathophysiological steps would be an attractive treatment option. Proton pump inhibitors (PPIs) are safe in pregnancy where they are prescribed for gastric reflux...
March 2017: Hypertension
https://www.readbyqxmd.com/read/28090323/high-thioredoxin-1-levels-in-rheumatoid-arthritis-patients-diminish-binding-and-signalling-of-the-monoclonal-antibody-tregalizumab
#13
Katharina Heim, Benjamin Dälken, Stefanie Faust, Faiza Rharbaoui, Andre Engling, Holger Wallmeier, Theodor Dingermann, Heinfried H Radeke, Jörg Schüttrumpf, Marcus Gutscher
The humanized non-depleting anti-CD4 monoclonal antibody Tregalizumab (BT-061) is able to selectively activate the suppressive function of regulatory T cells and has been investigated up to phase IIb in clinical trials in patients suffering from rheumatoid arthritis (RA). A pharmacokinetic-pharmacodynamic model based on clinical data from RA and healthy volunteers, which used the cell surface CD4 downmodulation as marker of activity, confirmed a stronger effect in healthy volunteers compared with RA patients...
December 2016: Clinical & Translational Immunology
https://www.readbyqxmd.com/read/28079534/practical-efficacy-of-olmesartan-versus-azilsartan-in-patients-with-hypertension-a-multicenter-randomized-controlled-trial-muscat-4-study
#14
Yuki Kakio, Haruhito A Uchida, Ryoko Umebayashi, Hidemi Takeuchi, Yuka Okuyama, Yoshihisa Hanayama, Jun Wada
BACKGROUND: Olmesartan and azilsartan, angiotensin II receptor blockers (ARBs), are expected to decrease blood pressure more than the other ARBs. We conducted randomized-controlled trials to compare the practical efficacy of olmesartan with azilsartan. METHODS: Eighty-four patients treated with the conventional ARBs for more than 3 months were assigned randomly to receive either 20 mg of olmesartan (olmesartan medoxomil, OL group) or 20 mg of azilsartan (azilsartan, not azilsartan medoxomil, AZ group) once daily for 16 weeks...
January 10, 2017: Blood Pressure Monitoring
https://www.readbyqxmd.com/read/28072464/genistein-and-tyrphostin-ag556-decrease-ultra-rapidly-activating-delayed-rectifier-k-current-of-human-atria-by-inhibiting-egf-receptor-tyrosine-kinase
#15
Guo-Sheng Xiao, Yan-Hui Zhang, Wei Wu, Hai-Ying Sun, Yan Wang, Gui-Rong Li
BACKGROUND AND PURPOSE: The ultra-rapidly activating delayed rectifier K(+) current IKur (encoded by Kv 1.5 or KCNA5) plays an important role in human atrial repolarization. The present study investigates the regulation of this current by protein tyrosine kinases (PTKs). EXPERIMENTAL APPROACH: Whole-cell patch voltage clamp technique and immunoprecipitation and Western blotting analysis were used to investigate whether the PTK inhibitors genistein, tyrphostin AG556 (AG556) and PP2 regulate human atrial IKur and hKv1...
January 10, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28067578/relationship-between-hypoxia-and-downstream-pathogenic-pathways-in-preeclampsia
#16
Henri Augusto Korkes, Leandro De Oliveira, Nelson Sass, Saira Salahuddin, S Ananth Karumanchi, Augustine Rajakumar
Defects in angiogenesis and mitochondrial function in the placenta contribute to the pathogenesis of preeclampsia; however upstream regulators of these pathways are not known. It has been argued that placental hypoxia secondary to abnormal spiral artery remodeling may play a causal role in the angiogenic and mitochondrial abnormalities noted in preeclampsia. The aim of this study was to evaluate the relationship between hypoxia-inducible factor-1α (HIF-1α) ¸ a surrogate of hypoxia, and soluble fms-tyrosine kinase 1 (sFlt1), a circulating anti-angiogenic factor, and microRNA 210 (miR-210), a microRNA that regulates mitochondrial function, in human placentas from preeclamptic and non-hypertensive pregnancies...
January 9, 2017: Hypertension in Pregnancy
https://www.readbyqxmd.com/read/28057155/-level-of-soluble-programmed-death-1-ligand-1-in-peripheral-blood-of-patients-with-advanced-epidermal-growth-factor-receptor-mutated-lung-adenocarcinoma-and-its-clinical-implications
#17
L Q Zhang, Y Chen, X Pan, Y F Xing, M H Shi, Y J Chen
Objective: To analyze the expression of soluble programmed death ligand 1 (sPD-L1) in the serum of patients with advanced epidermal growth factor receptor (EGFR) mutated lung adenocarcinoma and to explore its clinical implications. Methods: Seventy-two patients with EGFR mutated advanced lung adenocarcinoma (EGFR mutation group) were included from the Department of Respiratory Diseases in The Second Affiliated Hospital of Soochow University from May 2015 to July 2016. Thirty-one patients with advanced EGFR wild type (WT) lung adenocarcinoma [EGFR WT group, diagnosed via mini specimens from bronchoscopy or transthoracic needle aspiration biopsy (TNAB), matching in sex, age and tumor stage with EGFR mutation group] were also enrolled as controls...
December 27, 2016: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28039440/delivery-of-sfit-1-engineered-mscs-in-combination-with-a-continuous-low-dose-doxorubicin-treatment-prevents-growth-of-liver-cancer
#18
Jian Niu, Yue Wang, Ji Wang, Liu Bin, Xin Hu
One important process in liver cancer growth and progression is angiogenesis. Vascular endothelial growth factor (VEGF) has the significant role in liver cancer angiogenesis. sFlt1 (soluble Fms-like tyrosine kinase-1) is the promising inhibitor of VEGF and can be used as the new method of inhibiting angiogenesis. MSCs (Mesenchymal stem cells) can infiltrate into tumor tissue and function as the efficient transgene delivery mediator. Here, we engineered murine MSCs to express sFlt1 and examined the anti-tumor effect of MSC- sFlt1 in combination with continues low-dose doxorubicin treatment...
December 28, 2016: Aging
https://www.readbyqxmd.com/read/28029055/improved-risk-stratification-of-patients-with-acute-coronary-syndromes-using-a-combination-of-hstnt-nt-probnp-and-hscrp-with-the-grace-score
#19
Roland Klingenberg, Soheila Aghlmandi, Lorenz Räber, Baris Gencer, David Nanchen, Dik Heg, Sebastian Carballo, Nicolas Rodondi, François Mach, Stephan Windecker, Peter Jüni, Arnold von Eckardstein, Christian M Matter, Thomas F Lüscher
BACKGROUND: Clinical scores and biomarkers improve risk stratification of patients with acute coronary syndromes. However, little is known about their value in patients referred for coronary angiography. METHODS: Consecutive patients admitted at four Swiss university hospitals with a diagnosis of acute coronary syndrome were enrolled into the SPUM-ACS Biomarker Cohort between 2009 and 2012. Patients were followed at 30 days and 1 year with assessment of adjudicated events including all-cause mortality and the composite of all-cause mortality or non-fatal recurrent myocardial infarction...
December 1, 2016: European Heart Journal. Acute Cardiovascular Care
https://www.readbyqxmd.com/read/28007693/pad4-deficiency-decreases-inflammation-and-susceptibility-to-pregnancy-loss-in-a-mouse-model
#20
Luise Erpenbeck, Chanchal Sur Chowdhury, Zsuzsanna K Zsengellér, Maureen Gallant, Suzanne D Burke, Stephen Cifuni, Sinuhe Hahn, Denisa D Wagner, S Ananth Karumanchi
Inflammation is thought to play a critical role in the pathogenesis of placentation disorders such as recurrent miscarriages, growth restriction, and preeclampsia. Recently, neutrophil extracellular traps (NETs) have emerged as a potential mechanism for promoting inflammation in both infectious and noninfectious disorders. To investigate a pathogenic role for NETs in placentation disorders, we studied a model of antiangiogenic factor-mediated pregnancy loss in wild-type (WT) mice and in mice deficient in peptidylarginine deiminase 4 (Padi4(-/-)) that are unable to form NETs...
December 2016: Biology of Reproduction
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