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Erythropoietine

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https://www.readbyqxmd.com/read/28211648/cognitive-development-in-preterm-infants-multi-faceted-deficits-reflect-vulnerability-of-rigorous-neurodevelopmental-pathways
#1
Jessie R Maxwell, Tracylyn R Yellowhair, Akosua Y Oppong, Jenny E Camacho, Jean R Lowe, Lauren L Jantzie, Robin K Ohls
Prematurity remains the major cause of neonatal morbidity and mortality, with 15 million preterm births occurring worldwide in 2010. Infants born less than 37 weeks gestation are at high risk of abnormal neurodevelopmental outcomes, given that the central nervous system is extremely sensitive to an abnormal intra- and extra-uterine environment. Children born preterm have multiple neurodevelopmental sequelae involving dynamic and complex cognitive deficits. Former preterm infants have difficulty with each domain of cognition, including executive function, language, learning and memory, complex attention, perceptual-motor function and social cognition when compared to children born at term...
February 17, 2017: Minerva Pediatrica
https://www.readbyqxmd.com/read/28210010/evaluation-and-treatment-of-anemia-in-premature-infants
#2
Edo Hasanbegovic, Nermana Cengic, Snijezana Hasanbegovic, Jasmina Heljic, Ismail Lutolli, Edin Begic
INTRODUCTION: Anemia in preterm infants is the pathophysiological process with greater and more rapid decline in hemoglobin compared to the physiological anemia in infants. There is a need for transfusions and administration of human recombinant erythropoietin. AIM: To determine the frequency of anemia in premature infants at the Pediatric Clinic, University Clinical Center Sarajevo, as well as parameter values in the blood count of premature infants and to explore a relationship between blood transfusions with the advent of intraventricular hemorrhage (determine treatment outcome in preterm infants)...
December 2016: Medical Archives
https://www.readbyqxmd.com/read/28205143/development-of-a-gastric-absorptive-immediate-responsive-oral-protein-loaded-versatile-polymeric-delivery-system
#3
Pierre P D Kondiah, Yahya E Choonara, Lomas K Tomar, Charu Tyagi, Pradeep Kumar, Lisa C du Toit, Thashree Marimuthu, Girish Modi, Viness Pillay
A multifunctional platform to deliver three diverse proteins of insulin, interferon beta (INF-β) and erythropoietin (EPO), using a novel copolymeric microparticulate system of TMC-PEGDMA-MAA, was synthesised as an intelligent pH-responsive 2-fold gastric and intestinal absorptive system. Physiochemical and physicomechanical studies proved the degree of crystallinity that supported the controlled protein delivery of the microparticulate system. The copolymer was tableted before undertaking in vitro and in vivo analysis...
February 15, 2017: AAPS PharmSciTech
https://www.readbyqxmd.com/read/28198064/real-life-practices-for-preventing-venous-thromboembolism-in-multiple-myeloma-patients-a-cohort-study-from-the-french-health-insurance-database
#4
Aurore Palmaro, Marie-Eve Rougé-Bugat, Martin Gauthier, Fabien Despas, Guillaume Moulis, Maryse Lapeyre-Mestre
PURPOSE: The risk of venous thromboembolic event (VTE) in multiple myeloma is particularly increased. Current guidelines recommend systematic VTE prophylaxis with vitamin K antagonists (VKA) or low weight molecular heparin (LWMH) or unfractionated heparin (UFH) in high-risk patients, based on treatment received [e.g. use of IMiDs (thalidomide, lenalidomide and pomalidomide), alkylating agents or erythropoietin] and individual risk factors (e.g. history of VTE). The aim of this study was to describe strategy of VTE prophylaxis and prescribing of other antithrombotic agents during the first 6 months of multiple myeloma therapy, with stratification on IMiD-based regimens and drug and disease-related risk factors...
February 15, 2017: Pharmacoepidemiology and Drug Safety
https://www.readbyqxmd.com/read/28197273/clinical-and-surgical-strategies-for-avoiding-or-reducing-allogeneic-blood-transfusions
#5
Antonio Alceu Dos Santos, Jose Francisco Baumgratz, Jose Henrique Andrade Vila, Rodrigo Moreira Castro, Rodrigo Freire Bezerra
Blood transfusions have still been used as a standard therapy to treat severe anemia. Current evidences point to both excessive allogeneic blood consumption and decreased donations, which result in reduced stocks in blood banks. Several studies have increasingly suggested a more restrictive transfusion practice for blood products. Currently, a number of autologous blood conservation protocols in surgeries have been noted. We report a case of severe anemia with 2.9 g/dL hemoglobin, which was successfully handled without using the standard therapy to treat anemia with hemotransfusions...
April 2016: Cardiology Research
https://www.readbyqxmd.com/read/28197080/intense-exercise-promotes-adult-hippocampal-neurogenesis-but-not-spatial-discrimination
#6
Ji H So, Chao Huang, Minyan Ge, Guangyao Cai, Lanqiu Zhang, Yisheng Lu, Yangling Mu
Hippocampal neurogenesis persists throughout adult life and plays an important role in learning and memory. Although the influence of physical exercise on neurogenesis has been intensively studied, there is controversy in regard to how the impact of exercise may vary with its regime. Less is known about how distinct exercise paradigms may differentially affect the learning behavior. Here we found that, chronic moderate treadmill running led to an increase of cell proliferation, survival, neuronal differentiation, and migration...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/28195189/protective-effect-of-maternal-uteroplacental-insufficiency-on-oxygen-induced-retinopathy-in-offspring-removing-bias-of-premature-birth
#7
Silke Becker, Haibo Wang, Baifeng Yu, Randy Brown, Xiaokun Han, Robert H Lane, M Elizabeth Hartnett
To address the hypothesis that maternal uteroplacental insufficiency (UPI) increases severity of retinopathy of prematurity, we developed a composite rat model of UPI and oxygen-fluctuations and removed premature birth as a confounding factor. Timed-pregnant Sprague-Dawley dams underwent bilateral uterine artery ligation or anesthesia (control) at e19.5. Full-term pups developed in room air (RA) or an oxygen-induced retinopathy (OIR) model. Isolectin-stained retinal flat-mounts were analyzed for percent of areas of avascular/total retina (AVA) and of intravitreal neovascular/total retina (IVNV)...
February 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28193039/molecularly-imprinted-polymer-based-plasmonic-immunosandwich-assay-for-fast-and-ultrasensitive-determination-of-trace-glycoproteins-in-complex-samples
#8
Xueying Tu, Pir Muhammad, Jia Liu, Yanyan Ma, Shuangshou Wang, Danyang Yin, Zhen Liu
Glycoproteins play significant roles in many biological processes. Assays of glycoproteins have significant biological importance and clinical values, for which immunoassay has been the workhorse tool. However, immunoassay suffers from some disadvantages, such as poor availability of high-specificity antibodies and limited stability of biological reagents. Herein, we present an antibody-free and enzyme-free approach, called molecularly imprinted polymer (MIP)-based plasmonic immunosandwich assay (PISA), for fast and ultrasensitive detection of trace glycoproteins in complex samples...
December 20, 2016: Analytical Chemistry
https://www.readbyqxmd.com/read/28192509/drug-versus-placebo-randomized-controlled-trials-in-neonates-a-review-of-clinicaltrials-gov-registry
#9
Emilie Desselas, Claudia Pansieri, Stephanie Leroux, Maurizio Bonati, Evelyne Jacqz-Aigrain
BACKGROUND: Despite specific initiatives and identified needs, most neonatal drugs are still used off-label, with variable dosage administrations and schedules. In high risk preterm and term neonates, drug evaluation is challenging and randomized controlled trials (RCT) are difficult to conduct and even more is the use of a placebo, required in the absence of a reference validated drug to be used as comparator. METHODS: We analyzed the complete ClinicalTrials.gov registry 1) to describe neonatal RCT involving a placebo, 2) to report on the medical context and ethical aspects of placebo use...
2017: PloS One
https://www.readbyqxmd.com/read/28191453/anti-tnf-mediated-modulation-of-prohepcidin-improves-iron-availability-in-inflammatory-bowel-disease-in-an-il-6-mediated-fashion
#10
Flaminia Cavallaro, Lorena Duca, Laura Francesca Pisani, Roberta Rigolini, Luisa Spina, Gian Eugenio Tontini, Nadia Munizio, Elena Costa, Maria Domenica Cappellini, Maurizio Vecchi, Luca Pastorelli
Background. Anaemia is common in inflammatory bowel disease (IBD), frequently resulting from a combination of iron deficiency and of anaemia of chronic disease (ACD). ACD is characterized by macrophage iron retention induced by proinflammatory cytokines. Hepcidin is the master inducer of iron accumulation during ACD, and its production is mainly regulated by IL-6 and the novel erythroid hormone erythroferrone (ERFE). This study evaluates whether anti-TNF monoclonal antibodies therapy modurates hepcidin production and the levels of its main regulators, leading to a restoration of iron homeostasis...
2017: Canadian Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28188131/momelotinib-inhibits-acvr1-alk2-decreases-hepcidin-production-and-ameliorates-anemia-of-chronic-disease-in-rodents
#11
Malte Asshoff, Verena Petzer, Matthew R Warr, David Haschka, Piotr Tymoszuk, Egon Demetz, Markus Seifert, Wilfried Posch, Manfred Nairz, Pat Maciejewski, Peter Fowles, Christopher J Burns, Gregg Smith, Kay-Uwe Wagner, Guenter Weiss, J Andrew Whitney, Igor Theurl
Patients with myelofibrosis (MF) often develop anemia and frequently become dependent on red blood cell transfusions. Results from a phase 2 study for the treatment of MF with the Janus kinase1/2 (JAK1/2) inhibitor momelotinib (MMB) demonstrated that MMB treatment ameliorated anemia, unexpected for a JAK1/2 inhibitor, as erythropoietin-mediated JAK2 signaling is essential for erythropoiesis. Using a rat model of anemia of chronic disease (ACD), we now demonstrate that MMB treatment can normalize hemoglobin and red blood cell numbers...
February 10, 2017: Blood
https://www.readbyqxmd.com/read/28182038/study-of-anemia-in-nondialysis-dependent-chronic-kidney-disease-with-special-reference-to-serum-hepcidin
#12
H Goyal, S Mohanty, M Sharma, A Rani
We studied the role of serum hepcidin in anemia of chronic kidney disease (CKD) in a hospital-based cross-sectional study. Serum hepcidin, ferritin, and high-sensitivity C-reactive protein (hsCRP) levels were evaluated in patients of CKD. Hepcidin levels were increased in patients as compared to healthy adults. Hepcidin levels increased as CKD progressed through stage 3-5 (P trend = 0.015) but did not correlate with estimated glomerular filtration rate. Hepcidin correlated positively with ferritin (P < 0...
January 2017: Indian Journal of Nephrology
https://www.readbyqxmd.com/read/28175584/367%C3%A2-autocrine-paracrine-erythropoietin-signaling-associated-with-symptomatic-von-hippel-lindau-hemangioblastomas
#13
Saman Sizdahkhani, Xiang Wang, Nancy A Edwards, Zhengping Zhuang, Russell R Lonser, Edward H Oldfield, Prashant Chittiboina
No abstract text is available yet for this article.
August 1, 2016: Neurosurgery
https://www.readbyqxmd.com/read/28173916/effect-of-mineral-and-bone-metabolism-on-restless-legs-syndrome-in-hemodialysis-patients
#14
Precil D M M Neves, Fabiana G Graciolli, Ivone B Oliveira, Ramaiane A Bridi, Rosa M A Moysés, Rosilene M Elias
STUDY OBJECTIVES: Restless legs syndrome (RLS) is a highly prevalent sleep disease among patients on hemodialysis. The physiopathology is still unclear, and may be multifactorial. Because of the association between iron metabolism and chronic kidney disease-mineral and bone disorders (CKD-MBD), we hypothesized that both factors would be associated with RLS. METHODS: We have evaluated hemodialysis patients, in a face-to-face interview for the diagnosis and severity of RLS, as measured by the International Restless Legs Syndrome Study Group...
January 15, 2017: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
https://www.readbyqxmd.com/read/28173069/a-genetic-variation-associated-with-plasma-erythropoietin-and-a-non-coding-transcript-of-prkar1a-in-sickle-cell-disease
#15
Xu Zhang, Binal N Shah, Wei Zhang, Santosh L Saraf, Galina Miasnikova, Adelina Sergueeva, Tatiana Ammosova, Xiaomei Niu, Mehdi Nouraie, Sergei Nekhai, Oswaldo Castro, Mark T Gladwin, Josef T Prchal, Joe G N Garcia, Roberto F Machado, Victor R Gordeuk
No abstract text is available yet for this article.
October 15, 2016: Human Molecular Genetics
https://www.readbyqxmd.com/read/28168703/erythropoietin-accelerates-functional-recovery-after-moderate-sciatic-nerve-crush-injury
#16
Michael B Geary, Haiyan Li, Alissa Zingman, John Ketz, Michael Zuscik, Karen L De Mesy Bentley, Mark Noble, John C Elfar
INTRODUCTION: Erythropoietin (EPO) has been identified as a neuroregenerative agent. We hypothesize that it may accelerate recovery after crush injury and may vary with crush severity. METHODS: Mice were randomized to mild, moderate, or severe crush of the sciatic nerve and were treated with EPO or vehicle control after injury. The sciatic function index (SFI) was monitored over the first week. Microstructural changes were analyzed by immunofluorescence for neurofilament (NF) and myelin (P0 ), and electron microscopy was used to assess ultrastructural changes...
November 7, 2016: Muscle & Nerve
https://www.readbyqxmd.com/read/28168414/the-anti-aging-effect-of-erythropoietin-via-the-erk-nrf2-are-pathway-in-aging-rats
#17
Haiqin Wu, Jiaxin Zhao, Mengyi Chen, Huqing Wang, Qingling Yao, Jiaxin Fan, Meng Zhang
Erythropoietin (EPO) has a neuroprotective effect and can resist aging, which most likely occur through EPO increasing the activity of antioxidant enzymes and scavenging free radicals. In this study, we verified the anti-aging function of EPO and discussed the mechanism occurring through the extracellular signal-regulated kinase (ERK)/NF-E2-related factor 2 (Nrf2)-ARE pathway. A rat model of aging was induced by the continuous subcutaneous injection of 5 % D-galactose for 6 weeks. At the beginning of the sixth week, physiological saline or EPO was administered twice per day through a lateral ventricle system for a total of 7 days...
February 6, 2017: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/28168382/molecular-design-expression-and-evaluation-of-pasylated-human-recombinant-erythropoietin-with-enhanced-functional-properties
#18
Mohammad Hossein Hedayati, Dariush Norouzian, Mahdi Aminian, Shahram Teimourian, Reza Ahangari Cohan, Soroush Sardari, M Reza Khorramizadeh
Erythropoietin (EPO) is the principal hormone which, has somewhat short half-life involved in the differentiation and regulation of circulating red blood cells. The present study was carried out to evaluate the capability of a polyethylene glycol mimetic technology as a biological alternative to improve pharmaceutical properties of human recombinant EPO. In silico models of EPO fused to 200 amino acids of proline, alanine, and serine (PAS) were initially generated and assessed by molecular dynamic (MD) simulation...
February 6, 2017: Protein Journal
https://www.readbyqxmd.com/read/28167131/erythropoietin-induced-cytoprotection-in-intestinal-epithelial-cells-is-linked-to-system-xc
#19
Colin Martin, Mikita Patel, Miguel Melendez-Ferro, Brian Sims
Necrotizing enterocolitis is a common but serious complication among premature babies. Currently, there are limited treatment options. These include intensive supportive care and surgical intervention. In this study, we hypothesize that erythropoietin (Epo) could be protective against cell necrosis by increasing the levels of glutathione. This can be regulated by increasing the activity of system xC(-). This was demonstrated using intestinal epithelial cells (IEC-6) as a model system. S4-CPG and sulfasalazine pharmacologically inhibit xCT, which induced cell death...
February 3, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28164637/clinical-implications-of-plasma-n-acetyl-seryl-aspartyl-lysyl-proline-level-in-stable-kidney-transplant-recipients
#20
Yosuke Suzuki, Fumihiko Katagiri, Fuminori Sato, Kanako Fujioka, Yukie Sato, Takashi Fujioka, Yuhki Sato, Hiromitsu Mimata, Hiroki Itoh
BACKGROUND: N-acetyl-seryl-aspartyl-lysyl-proline (AcSDKP) is a natural inhibitor of pluripotent hematopoietic stem cell proliferation and is normally found in human plasma. Because AcSDKP is partially eliminated in urine, accumulation of AcSDKP due to chronic renal failure may cause anemia. However, the status of plasma AcSDKP level in stable kidney transplant recipients is unknown although some recipients develop anemia after kidney transplantation. In this study, we investigated the relationship between plasma AcSDKP-like immunoreactive substance (IS) level and clinical characteristics associated with renal anemia in stable kidney transplant recipients...
July 1, 2016: Clinical Laboratory
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