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soluble tyrosine kinase 1

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https://www.readbyqxmd.com/read/28090323/high-thioredoxin-1-levels-in-rheumatoid-arthritis-patients-diminish-binding-and-signalling-of-the-monoclonal-antibody-tregalizumab
#1
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
#2
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-human-atrial-ultra-rapidly-activating-delayed-rectifier-potassium-current-by-inhibiting-egfr-tyrosine-kinase
#3
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 Kv1.5 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/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
#4
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
#5
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
#6
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
#7
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
#8
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
https://www.readbyqxmd.com/read/27998008/antihypertensive-methyldopa-labetalol-hydralazine-and-clonidine-reversed-tnf-%C3%AE-inhibited-enos-expression-in-endothelial-trophoblast-cellular-networks
#9
Bei Xu, Gabriele Bobek, Angela Makris, Annemarie Hennessy
Medications used to control hypertension in pregnancy also improve trophoblast and endothelial cellular interaction in vitro. Tumour necrosis factor-α (TNF-α) inhibits trophoblast and endothelial cellular interactions and simultaneously decreases endothelial nitric oxide synthase (eNOS) expression. This study investigated whether antihypertensive medications improved these cellular interactions by modulating eNOS and inducible nitric oxide synthase (iNOS) expression. Human uterine myometrial microvascular endothelial cells (UtMVECs) were pre-incubated with (or without) low dose TNF-α (0...
December 20, 2016: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/27996960/recombinant-vascular-endothelial-growth-factor-121-injection-for-the-prevention-of-fetal-growth-restriction-in-a-preeclampsia-mouse-model
#10
Sri Sulistyowati, Muhammad Adrianes Bachnas, Nuri Dyah Anggraini, Eric Edwin Yuliantara, Wisnu Prabowo, Nutria Widya Purna Anggraini, Mochammad Besari Adi Pramono, Adityawarman, Erry Gumilar Dachlan, Wiku Andonotopo
AIM: To discover the potential role of recombinant VEGF121 (rVEGF121) injection for the prevention of fetal growth restriction in a preeclampsia (PE) mouse model (Mus musculus). SUBJECTS AND METHODS: This is an experimental study of 30 pregnant mice that were randomly divided into three groups: normal, PE, and PE with rVEGF121 injection. The PE mouse model was created by injecting anti Qa-2 10 ng iv, which is deleterious to Qa-2 expression (homologous to HLA-G), from the first to the fourth day of gestation...
December 10, 2016: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/27995418/the-effects-of-sildenafil-citrate-on-urinary-podocin-and-nephrin-mrna-expression-in-an-l-name-model-of-pre-eclampsia
#11
Sooraj Baijnath, Saravanakumar Murugesan, Irene Mackraj, Prem Gathiram, Jagidesa Moodley
We investigated the effects of sildenafil citrate (SC) on podocyturia in N (ω)-nitro-L-arginine methyl ester hydrochloride (L-NAME) model of pre-eclampsia (PE). One hundred and twenty Sprague-Dawley rats (SDR) were divided into five groups like pregnant control (PC), early-onset PE (EOPE), late-onset PE(LOPE), early and late-onset PE with SC-treated groups [EOPE (SC); LOPE (SC)]. PE was induced in SDR by oral administration of L-NAME in drinking water for 4-8 days for EOPE and 8-14 day for LOPE. The blood pressure, urine volume and total urine protein were increased in EOPE and LOPE groups when compared to PC, and all the above parameters decreased in EOPE (SC) and LOPE (SC) groups when compared to EOPE and LOPE groups, respectively...
December 19, 2016: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/27988307/interleukin-6-and-neuregulin-1-as-regulators-of-utrophin-expression-via-the-activation-of-nrg-1-erbb-signaling-pathway-in-mdx-cells
#12
Nevenka Juretić, Josefina Díaz, Felipe Romero, Gustavo González, Enrique Jaimovich, Nora Riveros
Duchenne muscular dystrophy (DMD) is a neuromuscular disease originated by mutations in the dystrophin gene. A promising therapeutic approach deals with functional substitution of dystrophin by utrophin, a structural homolog that might be able to compensate dystrophin absence in DMD muscle fibers. It has been described that both interleukin-6 (IL-6) and neuregulin-1 (NRG-1; Heregulin-HRG) induce utrophin expression in skeletal muscle. We investigated a possible functional link among IL-6, NRG-1 and utrophin, in normal (C57) and dystrophic (mdx) skeletal muscle cells...
December 15, 2016: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/27986932/placental-specific-sflt-1-role-in-pre-eclamptic-pathophysiology-and-its-translational-possibilities-for-clinical-prediction-and-diagnosis
#13
REVIEW
K R Palmer, S Tong, T J Kaitu'u-Lino
Pre-eclampsia is a common obstetric complication globally responsible for a significant burden of maternal and perinatal morbidity and mortality. Central to its pathophysiology is the anti-angiogenic protein, soluble fms-like tyrosine kinase-1 (sFLT-1). sFLT-1 is released from a range of tissues into the circulation, where it antagonizes the activity of vascular endothelial growth factor and placental growth factor leading to endothelial dysfunction. It is this widespread endothelial dysfunction that produces the clinical features of pre-eclampsia including hypertension and proteinuria...
December 16, 2016: Molecular Human Reproduction
https://www.readbyqxmd.com/read/27983995/n-terminal-pro-b-type-natriuretic-peptide-and-angiogenic-biomarkers-in-the-prognosis-of-adverse-outcomes-in-women-with-suspected-preeclampsia
#14
Indira Álvarez-Fernández, Belén Prieto, Verónica Rodríguez, Yolanda Ruano, Ana I Escudero, Francisco V Álvarez
BACKGROUND: This study compares the performance of the soluble fms-like tyrosine kinase 1 to placental growth factor (sFlt-1/PlGF) ratio and the cardiac biomarker N-terminal pro-B type natriuretic peptide (NT-proBNP) in the prediction of adverse outcomes in women with suspicion of PE. METHODS: A retrospective cohort study was conducted on women admitted at triage with signs and/or symptoms of PE (n=340). Serum levels of sFlt-1, PlGF and NT-proBNP were determined by an electrochemiluminescence immunoassay (Roche Diagnostics)...
October 28, 2016: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/27940029/sflt-1-plgf-sflt-1-plgf-ratio-and-uterine-artery-doppler-for-preeclampsia-diagnostics
#15
Viktorija Tarasevičienė, Regina Grybauskienė, Regina Mačiulevičienė
BACKGROUND AND OBJECTIVE: Angiogenic factors such as soluble fms-like tyrosine kinase 1 (sFlt-1) and placental growth factor (PlGF) play a key role in the pathogenesis of preeclampsia. Uterine artery (UA) blood flow is important for preeclamptic pregnancy outcome, but small amount of evidence suggests UA dopplerometry for preeclampsia diagnostics and management. The aim of our study was to compare the value of angiogenic factors and UA dopplerometry in preeclampsia diagnosis and determine cut-off values to obtain the highest sensitivity and specificity of the parameter...
2016: Medicina
https://www.readbyqxmd.com/read/27939478/gelsolin-is-an-endogenous-inhibitor-of-syncytiotrophoblast-extracellular-vesicle-shedding-in-pregnancy
#16
Neil A Nadkarni, Augustine Rajakumar, Nikita Mokhashi, Suzanne D Burke, Sarosh Rana, Saira Salahuddin, Quynh Dang, Ravi Thadhani, Ramaswamy Krishnan, Thomas P Stossel, S Ananth Karumanchi
BACKGROUND: Preeclampsia, a pregnancy-specific inflammatory disorder, is characterized by high levels of anti-angiogenic protein, soluble fms-like tyrosine kinase 1 (sFlt1), in the maternal circulation. sFlt1 producing molecular machinery is present in syncytiotrophoblast extracellular vesicles that are released by the placenta into maternal plasma during normal pregnancy, a process greatly accelerated in preeclampsia. We hypothesized that syncytiotrophoblast extracellular vesicles exposes cytoplasmic actin to plasma resulting in depletion of plasma gelsolin (pGSN), an abundant plasma protein that scavenges circulating actin and other pro-inflammatory mediators...
October 2016: Pregnancy Hypertension
https://www.readbyqxmd.com/read/27939475/trophoblast-mitochondrial-function-is-impaired-in-preeclampsia-and-correlates-negatively-with-the-expression-of-soluble-fms-like-tyrosine-kinase-1
#17
Zsuzsanna K Zsengellér, Augustine Rajakumar, Jon T Hunter, Saira Salahuddin, Sarosh Rana, Isaac E Stillman, S Ananth Karumanchi
Preeclampsia is a common medical complication of pregnancy that is associated with significant morbidity and mortality to the mother and the baby. Extensive human epidemiological and experimental studies suggest that excess placental soluble fms-like tyrosine kinase 1, a potent anti-angiogenic factor leads to the maternal hypertension, proteinuria and other systemic complications of preeclampsia. To evaluate the mechanisms of the aberrant placental sFlt1 expression, we studied the role of mitochondrial dysfunction as one possible etiological factor...
October 2016: Pregnancy Hypertension
https://www.readbyqxmd.com/read/27935854/second-trimester-maternal-serum-markers-in-the-prediction-of-preeclampsia
#18
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
https://www.readbyqxmd.com/read/27929426/serum-soluble-fms-like-tyrosine-kinase-1-sflt-1-predicts-the-severity-of-acute-pancreatitis
#19
Paulina Dumnicka, Mateusz Sporek, Małgorzata Mazur-Laskowska, Piotr Ceranowicz, Marek Kuźniewski, Ryszard Drożdż, Tadeusz Ambroży, Rafał Olszanecki, Beata Kuśnierz-Cabala
Organ failure is the most important determinant of the severity of acute pancreatitis (AP). Soluble fms-like tyrosine kinase 1 (sFlt-1) is positively associated with organ failure in sepsis. Our aim was to evaluate the diagnostic utility of automated sFlt-1 measurements for early prediction of AP severity. Adult patients (66) with AP were recruited, including 46 with mild (MAP), 15 with moderately-severe (MSAP) and 5 with severe AP (SAP). Serum and urine samples were collected twice. Serum sFlt-1 was measured with automated electrochemiluminescence immunoassay...
December 6, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27918253/placental-growth-factor-alone-or-in-combination-with-soluble-fms-like-tyrosine-kinase-1-as-an-aid-to-the-assessment-of-women-with-suspected-pre-eclampsia-systematic-review-and-economic-analysis
#20
Geoff K Frampton, Jeremy Jones, Micah Rose, Liz Payne
BACKGROUND: Pre-eclampsia (PE) prediction based on blood pressure, presence of protein in the urine, symptoms and laboratory test abnormalities can result in false-positive diagnoses. This may lead to unnecessary antenatal admissions and preterm delivery. Blood tests that measure placental growth factor (PlGF) or the ratio of soluble fms-like tyrosine kinase 1 (sFlt-1) to PlGF could aid prediction of PE if either were added to routine clinical assessment or used as a replacement for proteinuria testing...
November 2016: Health Technology Assessment: HTA
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