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https://www.readbyqxmd.com/read/29779334/-effect-of-iron-chelation-therapy-on-epo-stat5-signaling-pathway-and-treg-expression-in-ipss-low-risk-medium-risk-1-group-myelodysplastic-syndrome-patients
#1
Y Zhang, S Han, C Guo, Q X Zhang, C K Chang
No abstract text is available yet for this article.
April 14, 2018: Zhonghua Xue Ye Xue za Zhi, Zhonghua Xueyexue Zazhi
https://www.readbyqxmd.com/read/29777631/effect-of-deferasirox-erythropoietin-vs-erythropoietin-on-erythroid-response-in-low-int-1-risk-mds-patients-results-of-the-phase-ii-kallisto-trial
#2
Norbert Gattermann, Rosa Coll, Lutz Jacobasch, Allameddine Allameddine, Amin Azmon, Laurie DeBonnett, Andreas Bruederle, Jie Jin
OBJECTIVES: Erythropoiesis-stimulating agents (ESAs) remain first-choice to treat symptomatic anemia and delay transfusion dependence in most patients with lower-risk myelodysplastic syndromes (MDS) without del(5q). Deferasirox increased erythroid responses in some lower-risk MDS patients in clinical trials, and adding low-dose deferasirox to ESA treatment may further improve erythroid response. METHODS: KALLISTO (NCT01868477) was a randomized, open-label, multicenter, phase II study...
May 19, 2018: European Journal of Haematology
https://www.readbyqxmd.com/read/29765443/management-of-cardiac-hemochromatosis
#3
Wilbert S Aronow
Iron-overload syndromes may be hereditary or acquired. Patients may be asymptomatic early in the disease. Once heart failure develops, there is rapid deterioration. Cardiac hemochromatosis is characterized by a dilated cardiomyopathy with dilated ventricles, reduced ejection fraction, and reduced fractional shortening. Deposition of iron may occur in the entire cardiac conduction system, especially the atrioventricular node. Cardiac hemochromatosis should be considered in any patient with unexplained heart failure...
April 2018: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/29763715/near-infrared-light-activated-red-emitting-upconverting-nanoplatform-for-t-1-weighted-magnetic-resonance-imaging-and-photodynamic-therapy
#4
Xiang-Long Tang, Jun Wu, Ben-Lan Lin, Sheng Cui, Hong-Mei Liu, Ru-Tong Yu, Xiao-Dong Shen, Ting-Wei Wang, Wei Xia
Photodynamic therapy (PDT) has increasingly become an efficient and attractive cancer treatment modality based on reactive oxygen species (ROS) that can induce tumor death after irradiation with ultraviolet or visible light. Herein, to overcome the limited tissue penetration in traditional PDT, a novel near-infrared (NIR) light-activated NaScF4 : 40% Yb, 2% Er@CaF2 upconversion nanoparticle (rUCNP) is successfully designed and synthesized. Chlorin e6, a photosensitizer and a chelating agent for Mn2+ , is loaded into human serum albumin (HSA) that further conjugates onto rUCNPs...
May 12, 2018: Acta Biomaterialia
https://www.readbyqxmd.com/read/29763365/effect-of-cross-linked-chitosan-iron-iii-on-vascular-calcification-in-uremic-rats
#5
Barbara Bruna Abreu de Castro, Wander Barros do Carmo, Paulo Giovani de Albuquerque Suassuna, Moises Carminatti, Julia Bianchi Brito, Wagner Vasques Dominguez, Ivone Braga de Oliveira, Vanda Jorgetti, Melani Ribeiro Custodio, Helady Sanders-Pinheiro
Cross-linked chitosan iron (III) is a chitin-derived polymer with a chelating effect on phosphorus, but it is untested in vascular calcification. We evaluated this compound's ability to reduce hyperphosphatemia and its effect on vascular calcification in uremic rats using an adenine-based, phosphorus-rich diet for seven weeks. We used a control group to characterize the uremia. Uremic rats were divided according the treatment into chronic kidney disease, CKD-Ch-Fe(III)CL (CKD-Ch), CKD-calcium carbonate, or CKD-sevelamer groups...
May 2018: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/29760547/comparison-of-the-effects-of-deferasirox-deferoxamine-and-combination-of-deferasirox-and-deferoxamine-on-an-aplastic-anemia-mouse-model-complicated-with-iron-overload
#6
Dijiong Wu, Xiaowen Wen, Wenbin Liu, Huijin Hu, Baodong Ye, Yuhong Zhou
Background and aim: Iron overload is commonly observed during the course of aplastic anemia (AA), which is believed to aggravate hematopoiesis, cause multiple organ dysfunction, lead to disease progression, and impair quality of life. Deferasirox (DFX) and deferoxamine (DFO) are among the most common iron chelation agents available in the clinical setting. The aim of this study was to investigate if the combination therapy with DFX and DFO is superior in hematopoietic recovery and iron chelation...
2018: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/29756573/lactoferrin-major-physiological-functions-and-applications
#7
Liyuan Hao, Qiang Shan, Jingya Wei, Fengtao Ma, Peng Sun
Lactoferrin (lactotransferrin; Lf) is an iron-binding glycoprotein and one of the most important bioactivators in milk and other external secretions. It has numerous biological roles, including the regulation of iron absorption and modulation of immune responses, and has anti-microbial, anti-viral, antioxidant, anti-cancer, and anti-inflammatory activities. Lf regulates the quantity of iron absorbed in the intestine via its role in iron transport and can also chelate iron, directly or indirectly. Notably, it has been used as an adjuvant therapy for some intestinal diseases...
May 14, 2018: Current Protein & Peptide Science
https://www.readbyqxmd.com/read/29755708/growth-and-endocrine-function-in-tunisian-thalassemia-major-patients
#8
Naouel Guirat Dhouib, Monia Ben Khaled, Monia Ouederni, Habib Besbes, Ridha Kouki, Fethi Mellouli, Mohamed Bejaoui
β-thalassemia major (β-TM) is among the most common hereditary disorders imposing high expenses on health-care system worldwide. The patient's survival is dependent on lifetime blood transfusion which leads to iron overload and its toxicity in various organs including endocrine glands. This article provides an overview of endocrine disorders in beta-TM patients. This single center investigation enrolled 28 β-TM patients (16 males, 12 females) regularly transfused with packed red cell since early years of life...
2018: Mediterranean Journal of Hematology and Infectious Diseases
https://www.readbyqxmd.com/read/29752583/quality-of-life-qol-and-the-factors-affecting-it-in-transfusion-dependent-thalassemic-children
#9
Kapil Chordiya, Vikash Katewa, Pramod Sharma, Bindu Deopa, Suman Katewa
OBJECTIVES: To evaluate the Quality of life (QoL) and the factors affecting it in transfusion-dependent thalassemic children. METHODS: Current study was conducted at Department of Pediatrics, Dr. SNMC, Jodhpur. Ninety-three transfusion-dependent thalassemic children aged between 8 and 18 y were enrolled. Quality of life was assessed using Pediatric Quality of Life (PedsQL) measurement model in thalassemic children. RESULTS: Mean age of children was 11...
May 12, 2018: Indian Journal of Pediatrics
https://www.readbyqxmd.com/read/29750674/evaluating-plutonium-intake-and-radiation-dose-following-extensive-chelation-treatment
#10
Sara Dumit, Maia Avtandilashvili, Sergei Y Tolmachev
A voluntary partial-body donor (U.S. Transuranium and Uranium Registries Case 0785) was accidentally exposed to Pu via inhalation and wounds. This individual underwent medical treatment including wound excision and extensive chelation treatment with calcium ethylenediaminetetraacetic acid and calcium diethylenetriaminepentaacetic acid. Approximately 2.2 kBq of Pu was measured in the wound site 44 y after the accident. Major soft tissues and selected bones were collected at autopsy and radiochemically analyzed for Pu, Pu, and Am...
May 4, 2018: Health Physics
https://www.readbyqxmd.com/read/29737522/interventions-for-improving-adherence-to-iron-chelation-therapy-in-people-with-sickle-cell-disease-or-thalassaemia
#11
REVIEW
Patricia M Fortin, Sheila A Fisher, Karen V Madgwick, Marialena Trivella, Sally Hopewell, Carolyn Doree, Lise J Estcourt
BACKGROUND: Regularly transfused people with sickle cell disease (SCD) and people with thalassaemia (who are transfusion-dependent or non-transfusion-dependent) are at risk of iron overload. Iron overload can lead to iron toxicity in vulnerable organs such as the heart, liver and endocrine glands; which can be prevented and treated with iron chelating agents. The intensive demands and uncomfortable side effects of therapy can have a negative impact on daily activities and well-being, which may affect adherence...
May 8, 2018: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29731964/total-body-irradiation-and-iron-chelation-treatment-are-associated-with-pancreatic-injury-following-pediatric-hematopoietic-stem-cell-transplantation
#12
Natalia Maximova, Massimo Gregori, Roberto Simeone, Aurelio Sonzogni, Davide Zanon, Giulia Boz, Lorenzo D'Antiga
Whereas many studies have addressed the risk of organ dysfunction following hematopoietic stem cell transplantation (HSCT), little is known about pancreatic susceptibility in this setting. We aimed to investigate the effect of iron overload (IO) and total body irradiation (TBI) on pancreatic function of children undergoing HSCT. We retrospectively evaluated children admitted between 2012-2016 fulfilling the following criteria: normal pancreatic iron concentration (PIC), regular pancreatic function before HSCT, availability of abdominal magnetic resonance imaging with gradient-recalled-echo sequences and a full set of biochemical markers of IO and pancreatic function performed before HSCT and at discharge...
April 13, 2018: Oncotarget
https://www.readbyqxmd.com/read/29729985/novel-8-hydroxyquinoline-derivatives-targeting-%C3%AE-amyloid-aggregation-metal-chelation-and-oxidative-stress-against-alzheimer-s-disease
#13
Xuelian Yang, Pei Cai, Qiaohong Liu, Jiajia Wu, Yong Yin, Xiaobing Wang, Lingyi Kong
A series of multitargeted 8-hydroxyquinoline derivatives were designed and synthesized for the treatment of Alzheimer's disease (AD). In vitro studies indicated that most of the prepared compounds exhibited significant inhibitory effects against self-induced Aβ1-42 aggregation and potential antioxidant properties especially compound 5b (IC50  = 5.64 μM for self-induced Aβ aggregation; the oxygen radical absorbance capacity using fluorescein (ORAC-FL) value is 2.63 Trolox equivalents). Notably, 5b can chelate biometals and inhibit Cu2+ /Zn2+ -induced Aβ1-42 aggregation...
April 22, 2018: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/29727586/efficacy-and-safety-of-iron-chelators-in-thalassemia-and-sickle-cell-disease-a-multiple-treatment-comparison-network-meta-analysis-and-trial-sequential-analysis
#14
Kannan Sridharan, Gowri Sivaramakrishnan
BACKGROUND: To compare the efficacy and safety of desferrioxamine (DFO), deferiprone (DFP), deferasirox (DFX) and silymarin in patients with either thalassemia or sickle cell disorder through network meta-analysis. METHODS: Electronic databases were searched for appropriate randomized clinical trials comparing iron chelators in patients with iron overload. Random effects model was used to generate direct, indirect and mixed treatment comparison pooled estimates for the following outcomes: serum ferritin, liver iron concentration (LIC), changes in serum ferritin, mortality, urine iron excretion, adverse events, neutropenia, agranulocytosis and number of patients withdrawing the chelating therapy...
May 4, 2018: Expert Review of Clinical Pharmacology
https://www.readbyqxmd.com/read/29726060/differential-regulation-of-human-bone-marrow-mesenchymal-stromal-cell-chondrogenesis-by-hypoxia-inducible-factor-1%C3%AE-hydroxylase-inhibitors
#15
Dheraj K Taheem, Daniel A Foyt, Sandra Loaiza, Silvia A Ferreira, Dusko Ilic, Holger W Auner, Agamemnon E Grigoriadis, Gavin Jell, Eileen Gentleman
The transcriptional profile induced by hypoxia plays important roles in the chondrogenic differentiation of marrow stromal/stem cells (MSC) and is mediated by the Hypoxia Inducible Factor complex. However, various compounds can also stabilise HIF's oxygen-responsive element, HIF-1α, at normoxia and mimic many hypoxia-induced cellular responses. Such compounds may prove efficacious in cartilage tissue engineering, where microenvironmental cues may mediate functional tissue formation. Here, we investigated three HIF stabilising compounds, which each have distinct mechanisms of action, to understand how they differentially influenced the chondrogenesis of human bone marrow-derived MSC (hBM-MSC) in vitro...
May 3, 2018: Stem Cells
https://www.readbyqxmd.com/read/29721567/the-kinetics-of-dimethylhydroxypyridinone-interactions-with-iron-iii-and-the-catalysis-of-iron-iii-ligand-exchange-reactions-implications-for-bacterial-iron-transport-and-combination-chelation-therapies
#16
James M Harrington, Manu M Mysore, Alvin L Crumbliss
Many microbes acquire environmental Fe by secreting organic chelators, siderophores, which possess the characteristics of a high and specific binding affinity for iron(iii) that results in the formation of thermodynamically stable, and kinetically inert iron(iii) complexes. Mechanisms to overcome the kinetic inertness include the labilization of iron(iii) by means of ternary complex formation with small chelators. This study describes a kinetic investigation of the labilization of iron(iii) between two stable binding sites, the prototypical siderophore ferrioxamine B and EDTA, by the bidentate siderophore mimic, 1,2-dimethyl-3-hydroxy-4-pyridinone (L1, H(DMHP))...
May 3, 2018: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/29719933/prospective-evaluation-of-the-effect-of-deferasirox-on-hematologic-response-in-transfusion-dependent-patients-with-low-risk-mds-and-iron-overload
#17
C Rose, C Lenoir, E Gyan, M Hacini, S Amé, B Corront, O Beyne-Rauzy, D Adiko, E Loppinet, N Ali-Ammar, K Laribi, E Wattel, F Dreyfus, C S Roué, S Cheze
OBJECTIVES: To assess the reduction of transfusions rate in transfusion-dependent patients with low-risk myelodysplastic syndrome (MDS) with iron overload treated with deferasirox. METHODS: Prospective observational study. Primary endpoint was reduction in transfusion requirements (RTR) at 3 months, (assessed on 8-week period). Secondary endpoints were hematologic improvement according IWG 2006 criteria at 3, 6, 12 months. RESULTS: Fifty-seven patients were evaluable...
May 2, 2018: European Journal of Haematology
https://www.readbyqxmd.com/read/29719463/compound-k-induced-apoptosis-via-endoplasmic-reticulum-ca-2-release-through-ryanodine-receptor-in-human-lung-cancer-cells
#18
Dong-Hyun Shin, Dong-Gyu Leem, Ji-Sun Shin, Joo-Il Kim, Kyung-Tack Kim, Sang Yoon Choi, Myung-Hee Lee, Jung-Hye Choi, Kyung-Tae Lee
Background: Extended endoplasmic reticulum (ER) stress may initiate apoptotic pathways in cancer cells, and ER stress has been reported to possibly increase tumor death in cancer therapy. We previously reported that caspase-8 played an important role in compound K-induced apoptosis via activation of caspase-3 directly or indirectly through Bid cleavage, cytochrome c release, and caspase-9 activation in HL-60 human leukemia cells. The mechanisms leading to apoptosis in A549 and SK-MES-1 human lung cancer cells and the role of ER stress have not yet been understood...
April 2018: Journal of Ginseng Research
https://www.readbyqxmd.com/read/29701080/adherence-to-iron-chelation-therapy-in-patients-who-switched-from-deferasirox-dispersible-tablets-to-deferasirox-film-coated-tablets
#19
Wendy Y Cheng, Qayyim Said, Yanni Hao, Yongling Xiao, Francis Vekeman, Priyanka Bobbili, Mei Sheng Duh, Savita Nandal, Morey Blinder
OBJECTIVE: To compare real-world adherence to and persistence with deferasirox film-coated tablet (DFX-FCT) and deferasirox dispersible tablet (DFX-DT) among patients who switched from DFX-DT to DFX-FCT, overall and by disease type (sickle cell disease [SCD], thalassemia, and myelodysplastic syndrome [MDS]). METHODS: Patients were ≥2 years old and had ≥2 DFX-FCT claims over the study period and ≥2 DFX-DT claims before the index date (first DFX-FCT claim). The DFX-DT period was defined from the first DFX-DT claim to the index date; the DFX-FCT period was defined from the index date to the end of the study period...
April 27, 2018: Current Medical Research and Opinion
https://www.readbyqxmd.com/read/29699840/iron-toxicity-its-effect-on-the-bone-marrow
#20
REVIEW
Alessandro Isidori, Lorenza Borin, Elena Elli, Roberto Latagliata, Bruno Martino, Giuseppe Palumbo, Federica Pilo, Federica Loscocco, Giuseppe Visani, Paolo Cianciulli
Excess iron can be extremely toxic for the body and may cause organ damage in the absence of iron chelation therapy. Preclinical studies on the role of free iron on bone marrow function have shown that iron toxicity leads to the accumulation of reactive oxygen species, affects the expression of genes coding for proteins that regulate hematopoiesis, and disrupts hematopoiesis. These effects could be partially attenuated by iron-chelation treatment with deferasirox, suggesting iron toxicity may have a negative impact on the hematopoietic microenvironment...
April 13, 2018: Blood Reviews
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