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Iron therapy

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https://www.readbyqxmd.com/read/29323501/the-pivotal-role-of-copper-in-neurodegeneration-a-new-strategy-for-the-therapy-of-neurodegenerative-disorders
#1
Roberta Giampietro, Francesco Spinelli, Marialessandra Contino, Nicola Antonio Colabufo
Copper is an essential trace element for human body since it is a cofactor of several enzymes and proteins and plays a pivotal role in several biological functions (e.g., respiration, protection from oxidative damage, iron metabolism, etc.), also including the central nervous system development and functioning (e.g. synthesis of neurotransmitters, myelination, activation of neuropeptides, etc.). Therefore, copper dysmetabolism is associated with different toxic effects, mainly represented by oxidative stress, and it has been reported in many neurodegenerative disorders, such as Wilson's disease, Menkes disease, Alzheimer's disease, Parkinson's disease, and Amyotrophic Lateral Sclerosis...
January 11, 2018: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/29323192/baseline-il-2-and-the-aih-score-can-predict-the-response-to-standard-therapy-in-paediatric-autoimmune-hepatitis
#2
Jana Diestelhorst, Norman Junge, Danny Jonigk, Jerome Schlue, Christine S Falk, Michael P Manns, Ulrich Baumann, Elmar Jaeckel, Richard Taubert
Although autoimmune hepatitis (AIH) can be treated with corticosteroid-based first-line therapy, incomplete remission is associated with progressive liver fibrosis. So far accepted predictors of the subsequent treatment response of AIH patients are lacking. Therefore, we analysed baseline parameters, including iron homeostasis and cytokine levels, in 60 children with paediatric AIH (pAIH). In contrast to adults, elevated serum markers indicating iron overload were not commonly found in children. Therefore, ferritin was not predictive of the treatment response in pAIH...
January 11, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29323188/a-tet-off-gene-expression-system-for-validation-of-antifungal-drug-targets-in-a-murine-invasive-pulmonary-aspergillosis-model
#3
Yutian Peng, Hua Zhang, Min Xu, Man-Wah Tan
Aspergillus fumigatus is one of the major causes of invasive pulmonary aspergillosis in immunocompromised patients. Novel antifungal therapy is in urgent need due to emerging resistance and adverse toxicity of current antifungal drugs. Gene products that are essential for Aspergillus viability during infection are attractive drug targets. To characterize these genes in vivo we developed a Tet-Off gene expression system in A. fumigatus, whereby the administration of doxycycline resulted in down regulation of the gene whose expression is under the control of the Tet-Off promoter...
January 11, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29320951/glutathione-conjugated-polyethylenimine-on-the-surface-of-fe3o4-magnetic-nanoparticles-as-a-theranostic-agent-for-targeted-and-controlled-curcumin-delivery
#4
Navid Aeineh, Fahimeh Salehi, Mohammad Akrami, Firouzeh Nemati, Masoumeh Alipour, Milad Ghorbani, Banafsheh Nikfar, Fatemeh Salehian, Nader Riyahi Alam, Seyed Esmaeil Sadat Ebrahimi, Alireza Foroumadi, Mehdi Khoobi, Mohammadreza Rouini, Maryam Dibaei, Ismaeil Haririan, Mohammad Reza Ganjali, Saeed Safaei
Theranostics with the ability to simultaneous monitoring of treatment progress and controlled delivery of therapeutic agents has become as an emerging therapeutic paradigm in cancer therapy. In this study, we have developed a novel surface functionalized iron oxide nanoparticle using polyethyleneimine (PEI) and glutathione (GSH) for targeted curcumin (CUR) delivery and acceptable pH sensitive character. The developed magnetic nanoparticles (MNPs) were physicochemically characterized by FT-IR, XRD, FE-SEM and TEM...
January 11, 2018: Journal of Biomaterials Science. Polymer Edition
https://www.readbyqxmd.com/read/29318906/cefiderocol-a-novel-siderophore-cephalosporin
#5
Justin J Choi, Matthew W McCarthy
The emergence of multidrug-resistant bacterial pathogens has led to a global public health emergency and novel therapeutic options and drug-delivery systems are urgently needed. Cefiderocol is a siderophore cephalosporin antibiotic that has recently been developed to combat a variety of bacterial pathogens, including β-lactam- and carbapenem-resistant organisms. Areas covered: This paper provides an overview of the mutational and plasmid-mediated mechanisms of β-lactam and carbapenem resistance, the biochemical pathways of siderophores in bacterial iron metabolism, and how cefiderocol may be able to provide better targeted antimicrobial therapy that escape these drug-resistant mechanisms...
January 10, 2018: Expert Opinion on Investigational Drugs
https://www.readbyqxmd.com/read/29318368/increased-levels-of-advanced-glycation-end-products-positively-correlate-with-iron-overload-and-oxidative-stress-markers-in-patients-with-%C3%AE-thalassemia-major
#6
Maryam Sadat Mirlohi, Hamid Yaghooti, Saeed Shirali, Ali Aminasnafi, Samaneh Olapour
The impaired biosynthesis of the β-globin chain in β-thalassemia leads to the accumulation of unpaired alpha globin chains, failure in hemoglobin formation, and iron overload due to frequent blood transfusion. Iron excess causes oxidative stress and massive tissue injuries. Advanced glycation end products (AGEs) are harmful agents, and their production accelerates in oxidative conditions. This study was conducted on 45 patients with major β-thalassemia who received frequent blood transfusions and chelation therapy and were compared to 40 healthy subjects...
January 9, 2018: Annals of Hematology
https://www.readbyqxmd.com/read/29317052/iron-therapy-as-treatment-of-anemia-a-potentially-detrimental-and-hazardous-strategy-in-colorectal-cancer-patients
#7
M J Wilson, J J Harlaar, J Jeekel, M Schipperus, J J Zwaginga
In colorectal cancer patients, iron therapy, and especially intravenous iron therapy, is increasingly used to treat anemia and reduce the use of blood transfusions. However, iron has also been shown to be an essential nutrient for rapidly proliferating tissues and cells. In this respect, anemia of inflammation, characterized by limited duodenal iron uptake and sequestration of iron into the reticuloendothelial system, might be regarded as a potentially effective defense strategy of the human body against tumor growth...
January 2018: Medical Hypotheses
https://www.readbyqxmd.com/read/29315098/anemia-in-athletes-news-on-iron-therapy-and-community-care-during-marathons
#8
E Randy Eichner
No abstract text is available yet for this article.
January 2018: Current Sports Medicine Reports
https://www.readbyqxmd.com/read/29306847/human-nitric-oxide-biomarker-as-potential-no-donor-in-conjunction-with-superparamagnetic-iron-oxide-gold-core-shell-nanoparticles-for-cancer-therapeutics
#9
Nimisha Singh, Khushbu Patel, Suban K Sahoo, Rajender Kumar
Nitric oxide releasing superparamagnetic (Fe3O4-Au@NTHP) nanoparticles were synthesized by conjugation of human biomarker of nitric oxide, N-nitrosothioproline with iron oxide-gold (Fe3O4-Au) core shell nanoparticles. The structure and morphology of the prepared nanoparticles were confirmed by ATR-FTIR, HR-TEM, EDAX, XPS, DLS and VSM measurements. N-nitrosothioproline is a natural molecule and nontoxic to humans. Thus, the core shell nanoparticles prepared were highly biocompatible. The prepared Fe3O4-Au@NTHP nanoparticles also provided an excellent release of nitric oxide in dark and upon light irradiation for cancer treatment...
December 29, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/29305770/deferasirox-for-the-treatment-of-iron-overload-after-allogeneic-hematopoietic-cell-transplantation-multicenter-phase-i-study-ksgct1302
#10
Takayoshi Tachibana, Junya Kanda, Shinichiro Machida, Takeshi Saito, Masatsugu Tanaka, Yuho Najima, Satoshi Koyama, Takuya Miyazaki, Eri Yamamoto, Masahiro Takeuchi, Satoshi Morita, Yoshinobu Kanda, Heiwa Kanamori, Shinichiro Okamoto
The aim of this study was to assess the safety and optimal dose of deferasirox for the treatment of iron overload after allogeneic hematopoietic cell transplantation (HCT). The primary endpoint was the maximum tolerated dose of deferasirox that was determined by the intrapatient dose escalation methods. A total of 16 patients with post-HCT iron overload were enrolled in the study. After excluding one case of early relapse, 15 remained evaluable. Their median age was 42 years (range 22-68). Median time from HCT to deferasirox administration was 9 months (range 6-84)...
January 5, 2018: International Journal of Hematology
https://www.readbyqxmd.com/read/29305416/involvement-of-hepcidin-in-iron-metabolism-dysregulation-in-gaucher-disease
#11
Thibaud Lefebvre, Niloofar Reihani, Raed Daher, Thierry Billette de Villemeur, Nadia Belmatoug, Christian Rose, Yves Colin-Aronovicz, Hervé Puy, Caroline Le Van Kim, Mélanie Franco, Zoubida Karim
Gaucher disease is an inherited deficiency of glucocerebrosidase leading to accumulation of glucosylceramide in tissues such as the spleen, liver, and bone marrow. The resulting lipid-laden macrophages lead to the appearance of Gaucher cells. Anemia associated with an unexplained hyperferritinemia is a frequent finding in Gaucher disease, but whether this pathogenesis is related to an iron metabolism disorder has remained unclear. To investigate this issue, we explored the iron status of a large cohort of 90 type I Gaucher disease patients, including 66 patients treated with enzyme replacement therapy...
January 5, 2018: Haematologica
https://www.readbyqxmd.com/read/29304922/the-appropriate-use-of-opioids-in-the-treatment-of-refractory-restless-legs-syndrome
#12
Michael H Silber, Philip M Becker, Mark J Buchfuhrer, Christopher J Earley, William G Ondo, Arthur S Walters, John W Winkelman
Restless legs syndrome (RLS) is a distinct disorder, differing from chronic pain in many ways. Refractory RLS is characterized by unresponsiveness to dopamine agonists or alpha-2-delta ligands due to inadequate efficacy, augmentation, or adverse effects. This may result in severely impaired quality of life, profound insomnia, and suicidal depression. Opioid therapy is a mainstay in the management of these patients. This article summarizes the basic science and clinical evidence in support of their use, including the positive result of a large controlled multicenter study of 306 subjects, and outlines an approach to their use in clinical practice...
January 2018: Mayo Clinic Proceedings
https://www.readbyqxmd.com/read/29304848/effectiveness-and-safety-of-ferric-carboxymaltose-compared-to-iron-sucrose-in-women-with-iron-deficiency-anemia-phase-iv-clinical-trials
#13
Amreen Naqash, Rifat Ara, Ghulam N Bader
BACKGROUND: Iron deficiency anemia (IDA) is a significant problem worldwide particularly in women. The aim of the study was to evaluate the effectiveness and safety of intravenous ferric carboxymaltose (FCM) in comparison to iron sucrose (IS) in women with IDA. METHOD: Two hundred patients at Department of Obstetrics and Gynaecology, Sher-i-Kashmir Institute of Medical Sciences Medical College and Hospital, Jammu & Kashmir, India identified with IDA were enrolled for the study...
January 5, 2018: BMC Women's Health
https://www.readbyqxmd.com/read/29302655/iron-reduction-response-and-demographic-differences-between-diabetics-and-non-diabetics-with-cardiovascular-disease-entered-into-a-controlled-clinical-trial
#14
Leo R Zacharski, Galina Shamayeva, Bruce K Chow
Iron-catalyzed oxygen-free radical-induced oxidative stress mediates the pathogenesis of diabetes and cardiovascular disease (CVD). Diabetics (n = 473) and non-diabetics (n = 804) with CVD entered into a randomized trial of iron (ferritin) reduction by calibrated phlebotomy (, Identifier NCT00032357) had comparable iron measures at entry but diabetics had a greater burden of CVD and comorbidities, lower hemoglobin and hematocrit levels, and higher glucose levels than non-diabetics. Entry iron measures were lower in diabetics on hypoglycemic therapy compared to previously untreated diabetics...
January 5, 2018: Metallomics: Integrated Biometal Science
https://www.readbyqxmd.com/read/29301806/inherited-haemochromatosis-with-c282y-mutation-in-a-patient-with-alpha-thalassaemia-a-treatment-dilemma
#15
Mohammed Abdullah Al Qasem, Fayez Hanna, Usira S Vithanarachchi, Alhossain A Khalafallah
A Caucasian 24-year-old female patient suffers from two hereditary disorders: alpha-thalassaemia, which is prevalent in Asia and rare in Europe, and haemochromatosis, which is prevalent among northern Europe and rare in Asia. The clinical presentation and management of one of these diseases is controversial for the other. She presented 5 years ago with a clinical picture of refractory iron-deficiency anaemia secondary to menorrhagia. On treating her with the standard iron therapy, her anaemia persists although with adquate iron stores...
January 4, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29300453/novel-metal-polyphenol-framework-for-mr-imaging-guided-photothermal-therapy
#16
Gaozheng Zhao, Huihui Wu, Ruilu Feng, Dongdong Wang, Pengping Xu, Peng Jiang, Kang Yang, Zhen Guo, Haibao Wang, Qianwang Chen
Phothermal therapy has received increasing attention in recent years as a potentially effective way for treatment of cancer. In pursuit of a more biocompatible photothermal agent, we utilize bio-safe materials-ellagic acid (EA), polyvinyl pyrrolidone (PVP) and iron element as the building blocks, and successfully fabricate homogeneous nanosized Fe-EA framework for the first time by a facile method. As expected, the novel nano-agent exhibits no obvious cytotoxicity and good hemocompatibility in vitro and in vivo...
January 4, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29300241/incidentally-detected-transfusion-associated-iron-overload-in-3-children-after-cancer-chemotherapy
#17
Dennis John Kuo, Pooja Bhagia
Iron overload is a potential long-term complication among cancer survivors who received transfusions during treatment. Although there are screening guidelines for iron overload in pediatric survivors of hematopoietic stem cell transplant, these do not call for screening of other pediatric oncology patients. In our practice we incidentally discovered 3 patients in a population of 168 cancer survivors over the span of 17 years who were treated for cancer without hematopoietic stem cell transplant who had iron overload...
January 3, 2018: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/29291198/effect-of-helicobacter-pylori-eradication-on-elder-cases-observational-study-in-community-based-medicine
#18
Masaki Maruyama, Kenya Kamimura, Ayako Hoshiyama, Koki Hoshiyama, Mari Hoshiyama, Yoshihiro Hoshiyama, Shuji Terai
AIM: To examine the effect of Helicobacter pylori (H. pylori) eradication therapy on the extra-gastrointestinal factors in elderly patients by a before-after observational study in community medicine. METHODS: Medical records (1 May 2013-31 January 2014) of 130 patients who underwent H. pylori eradication therapy with 2-year after-eradication observation in our institute were reviewed. Data on sex; age; body weight; body mass index (BMI); mean corpuscular volume (MCV); total protein; low-density lipoprotein cholesterol, triglyceride, haemoglobin A1c and haemoglobin levels and gastric hyperplastic polyps (GHPs) at eradication was extracted...
December 16, 2017: World Journal of Clinical Cases
https://www.readbyqxmd.com/read/29290806/multimodal-theranostic-nanoformulations-permit-magnetic-resonance-bioimaging-of-antiretroviral-drug-particle-tissue-cell-biodistribution
#19
Bhavesh D Kevadiya, Christopher Woldstad, Brendan M Ottemann, Prasanta Dash, Balasrinivasa R Sajja, Benjamin Lamberty, Brenda Morsey, Ted Kocher, Rinku Dutta, Aditya N Bade, Yutong Liu, Shannon E Callen, Howard S Fox, Siddappa N Byrareddy, JoEllyn M McMillan, Tatiana K Bronich, Benson J Edagwa, Michael D Boska, Howard E Gendelman
RATIONALE: Long-acting slow effective release antiretroviral therapy (LASER ART) was developed to improve patient regimen adherence, prevent new infections, and facilitate drug delivery to human immunodeficiency virus cell and tissue reservoirs. In an effort to facilitate LASER ART development, "multimodal imaging theranostic nanoprobes" were created. These allow combined bioimaging, drug pharmacokinetics and tissue biodistribution tests in animal models. METHODS: Europium (Eu3+)- doped cobalt ferrite (CF) dolutegravir (DTG)- loaded (EuCF-DTG) nanoparticles were synthesized then fully characterized based on their size, shape and stability...
2018: Theranostics
https://www.readbyqxmd.com/read/29289736/systematic-magnetic-fluid-hyperthermia-studies-of-carboxyl-functionalized-hydrophilic-superparamagnetic-iron-oxide-nanoparticles-based-ferrofluids
#20
Ganeshlenin Kandasamy, Atul Sudame, Piyush Bhati, Anindita Chakrabarty, S N Kale, Dipak Maity
We have systematically studied heating efficiencies (via specific absorption rate-SAR/intrinsic loss power-ILP) of carboxyl (terephthalic acid-TA) functionalized hydrophilic SPIONs based ferrofluids (with good biocompatibility/high magnetization) and influence of following key factors in magnetic fluid hyperthermia (MFH): (i) alternating magnetic fields (AMFs - H)/frequencies (f) - chosen below/above Hergt's biological safety limit, (ii) concentrations (0.5-8 mg/ml) and (iii) dispersion media (water, a cell-culture medium and triethylene glycol (TEG)) for in vitro cancer therapy...
December 24, 2017: Journal of Colloid and Interface Science
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