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https://www.readbyqxmd.com/read/27933495/photocatalysis-of-s-metolachlor-in-aqueous-suspension-of-magnetic-cerium-doped-mtio2-core-shell-under-simulated-solar-light
#1
J Mermana, P Sutthivaiyakit, C Blaise, F Gagné, S Charnsethikul, P Kidkhunthod, S Sutthivaiyakit
Magnetic cerium-doped mesoporous titanium dioxide was synthesized by combining sol-gel method and calcination using tetrabutanate and ammonium cerium nitrate as precursors and Pluronic P123 as a template coating on iron oxide covered with carbon in ethanol. The magnetic Ce-doped catalyst showed only anatase structure with a slight increase in lattice parameters compared to the undoped catalyst. The Ce LIII-edge X-ray absorption near-edge spectroscopy (XANES) spectra showed Ce(3+), and the cerium substitution doping into titanium dioxide was proposed...
December 8, 2016: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/27933201/association-between-metabolic-syndrome-and-liver-histology-among-nafld-patients-without-diabetes
#2
Pushpjeet Kanwar, James E Nelson, Katherine Yates, David E Kleiner, Aynur Unalp-Arida, Kris V Kowdley
BACKGROUND: Metabolic syndrome (MetS) and obesity are associated with non-alcoholic fatty liver disease (NAFLD). The aim of this observational study was to examine the relationship of MetS and a diagnosis of non-alcoholic steatohepatitis (NASH) in patients without diabetes in the NASH Clinical Research Network (CRN). METHODS: Clinical, demographic, histological, laboratory and anthropometric data were collected on 356 adult patients without diabetes with NAFLD. Obesity was defined as body mass index ≥30...
2016: BMJ Open Gastroenterology
https://www.readbyqxmd.com/read/27932515/genotoxic-effect-of-iron-overload-and-disease-complications-in-transfused-%C3%AE-thalassaemic-patients
#3
Elisa Ferro, Giuseppa Visalli, Maria Angela La Rosa, Basilia Piraino, Rosa Civa, Gaetano Randazzo Papa, Angela Di Pietro
In previously reported studies, we observed significantly high genotoxicity biomarkers in regularly transfused thalassaemic patients, thus, in this study, we better investigated the genotoxic effect of iron overload and of thalassaemia complications, including their drug treatments. The assessment was performed in 64 regularly transfused thalassaemic patients using cytokinesis-block micronucleus and comet assays. All patients were splenectomised and undergoing iron chelation therapy. To reduce hypoxia-induced oxidative damage, the patients with haemoglobin levels <9...
December 8, 2016: Mutagenesis
https://www.readbyqxmd.com/read/27932449/oral-iron-treatment-response-and-predictors-in-anaemic-adolescents-and-adults-with-ibd-a-prospective-controlled-open-label-trial
#4
David S Rampton, James R Goodhand, Neerav M Joshi, Abu-Bakarr Karim, Yasmine Koodun, Farah M Barakat, Lucia Macken, Douglas G Ward, Tariq H Iqbal, Jenny Epstein, John M Fell, Ian R Sanderson
BACKGROUND: Because of previous concerns about the efficacy and safety of oral iron for treating iron deficiency anaemia in IBD, particularly in young people, we compared the effects of ferrous sulphate on haemoglobin response, disease activity and psychometric scores in adolescents and adults with IBD. We also assessed the relation of baseline serum hepcidin to haemoglobin response. METHODS: We undertook a prospective, open-label, 6-week non-inferiority trial of the effects of ferrous sulphate 200mg twice daily on haemoglobin, iron status, hepcidin, disease activity (Harvey-Bradshaw Index, Simple Colitis Clinical Activity Index, C-reactive protein (CRP), faecal calprotectin and psychometric scores in 45 adolescents (age 13-18 years) and 43 adults (>18 years)...
December 7, 2016: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/27931173/cosmetic-wastewater-treatment-by-zvi-h2o2-process
#5
Jan Bogacki, Piotr Marcinowski, Ewa Zapałowska, Justyna Maksymiec, Jeremi Naumczyk
ZVI/H2O2 process was applied for cosmetic wastewater treatment. Two commercial zero valent iron (ZVI) types with different granulation were chosen: Hepure Ferrox PRB and Hepure Ferrox Target. In addition, the pH and stirring method influence on ZVI/H2O2 process efficiency was studied. Wastewater used in experiments was collected from the cosmetic factory located in central Poland, and was pretreated with the use of dissolved air flotation (DAF). The pretreated wastewater was characterized by Chemical Oxygen Demand (COD) of 796 mg/L...
December 9, 2016: Environmental Technology
https://www.readbyqxmd.com/read/27928480/a-review-on-iron-chelators-in-treatment-of-iron-overload-syndromes
#6
REVIEW
Naser Mobarra, Mehrnoosh Shanaki, Hassan Ehteram, Hajar Nasiri, Mehdi Sahmani, Mohsen Saeidi, Mehdi Goudarzi, Hoda Pourkarim, Mehdi Azad
Iron chelation therapy is used to reduce iron overload development due to its deposition in various organs such as liver and heart after regular transfusion. In this review, different iron chelators implicated in treatment of iron overload in various clinical conditions have been evaluated using more up-to-date studies focusing on these therapeutic agents. Deferoxamine, Deferiprone and Deferasirox are the most important specific US FDA-approved iron chelators. Each of these chelators has their own advantages and disadvantages, various target diseases, levels of deposited iron and clinical symptoms of the afflicted patients which may affect their selection as the best modality...
October 1, 2016: International Journal of Hematology-oncology and Stem Cell Research
https://www.readbyqxmd.com/read/27928477/health-related-quality-of-life-and-health-utility-values-in-beta-thalassemia-major-patients-receiving-different-types-of-iron-chelators-in-iran
#7
Meysam Seyedifar, Farid Abedin Dorkoosh, Amir Ali Hamidieh, Majid Naderi, Hossein Karami, Mehran Karimi, Masoomeh Fadaiyrayeny, Masoumeh Musavi, Sanaz Safaei, Mohammad Mahdi Ahmadian-Attari, Molouk Hadjibabaie, Abdol Majid Cheraghali, Ali Akbari Sari
Background: Thalassemia is a chronic, inherited blood disorder, which in its most severe form, causes life-threatening anemia. Thalassemia patients not only engage with difficulties of blood transfusion and iron chelating therapy but also have some social challenges and health threatening factors. There are some reports on quality of life in thalassemia patients around the world from southeast of Asia to Italy in Europe and United States. In this study, we tried to evaluate and compare Health Related Quality of life (HRQoL) and the health utility in beta thalassemia major patients receiving different types of iron chelators and living in different socio-economical situations...
October 1, 2016: International Journal of Hematology-oncology and Stem Cell Research
https://www.readbyqxmd.com/read/27928027/five-coordinate-h64q-neuroglobin-as-a-ligand-trap-antidote-for-carbon-monoxide-poisoning
#8
Ivan Azarov, Ling Wang, Jason J Rose, Qinzi Xu, Xueyin N Huang, Andrea Belanger, Ying Wang, Lanping Guo, Chen Liu, Kamil B Ucer, Charles F McTiernan, Christopher P O'Donnell, Sruti Shiva, Jesús Tejero, Daniel B Kim-Shapiro, Mark T Gladwin
Carbon monoxide (CO) is a leading cause of poisoning deaths worldwide, with no available antidotal therapy. We introduce a potential treatment paradigm for CO poisoning, based on near-irreversible binding of CO by an engineered human neuroglobin (Ngb). Ngb is a six-coordinate hemoprotein, with the heme iron coordinated by two histidine residues. We mutated the distal histidine to glutamine (H64Q) and substituted three surface cysteines with less reactive amino acids to form a five-coordinate heme protein (Ngb-H64Q-CCC)...
December 7, 2016: Science Translational Medicine
https://www.readbyqxmd.com/read/27926557/long-term-quality-of-life-of-patients-with-permanent-end-ileostomy-results-of-a-nationwide-cross-sectional-survey
#9
Tobias S Schiergens, Verena Hoffmann, Tamara N Schobel, Gerhard H Englert, Martin E Kreis, Wolfgang E Thasler, Jens Werner, Michael S Kasparek
BACKGROUND: Patients with permanent end ileostomy are at high risk for detrimental stomal effects on their quality of life. However, little is known about the long-term quality of life of these patients. OBJECTIVE: The purpose of this study was to assess long-term quality of life in patients with permanent end ileostomy. DATA SOURCES: Registration at the German self-help organization ILCO was used for this study. STUDY SELECTION: Selection included a cross-sectional survey of 1434 patients with permanent end ileostomy...
January 2017: Diseases of the Colon and Rectum
https://www.readbyqxmd.com/read/27925282/hypobaric-hypoxia-regulates-brain-iron-homeostasis-in-rats
#10
Yaru Li, Peng Yu, Shi-Yang Chang, Qiong Wu, Panpan Yu, Congcong Xie, Wenyue Wu, Baolu Zhao, Guofen Gao, Yan-Zhong Chang
Disruption of iron homeostasis in brain has been found to be closely involved in several neurodegenerative diseases. Recent studies have reported that appropriate intermittent hypobaric hypoxia played a protective role in brain injury caused by acute hypoxia. However, the mechanisms of this protective effect have not been fully understood. In this study, Sprague-Dawley rat models were developed by hypobaric hypoxia treatment in an altitude chamber, and the iron level and iron related protein levels were determined in rat brain after four weeks of treatment...
December 6, 2016: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/27924826/iron-chelators-target-both-proliferating-and-quiescent-cancer-cells
#11
Mårten Fryknäs, Xiaonan Zhang, Ulf Bremberg, Wojciech Senkowski, Maria Hägg Olofsson, Peter Brandt, Ingmar Persson, Padraig D'Arcy, Joachim Gullbo, Peter Nygren, Leoni Kunz Schughart, Stig Linder, Rolf Larsson
Poorly vascularized areas of solid tumors contain quiescent cell populations that are resistant to cell cycle-active cancer drugs. The compound VLX600 was recently identified to target quiescent tumor cells and to inhibit mitochondrial respiration. We here performed gene expression analysis in order to characterize the cellular response to VLX600. The compound-specific signature of VLX600 revealed a striking similarity to signatures generated by compounds known to chelate iron. Validation experiments including addition of ferrous and ferric iron in excess, EXAFS measurements, and structure activity relationship analyses showed that VLX600 chelates iron and supported the hypothesis that the biological effects of this compound is due to iron chelation...
December 7, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27924329/low-cost-uva-led-as-a-radiation-source-for-the-photo-fenton-process-a-new-approach-for-micropollutant-removal-from-urban-wastewater
#12
I de la Obra, B Esteban García, J L García Sánchez, J L Casas López, J A Sánchez Pérez
Light Emitting Diode (LED) technology has matured sufficiently to be considered as an alternative UVA radiation source in photoreactors. Currently, low energy consuming LEDs with a wide range of wavelengths and radiant flux are readily available. In this study, UVA-LEDs were used as a radiation source for the photo-Fenton process as tertiary treatment. The water matrix used was a simulated secondary effluent doped with 200 μg L(-1) of the pesticide acetamiprid (ACTM) due to its recalcitrant nature. All experiments were carried out in a LED-box reactor at pH 2...
December 7, 2016: Photochemical & Photobiological Sciences
https://www.readbyqxmd.com/read/27923278/ampk-serves-as-a-therapeutic-target-against-anemia-of-inflammation
#13
Minjun Wang, Hong Xin, Wenbo Tang, Yiming Li, Zhaoyun Zhang, Linling Fan, Lei Miao, Bo Tan, Xiling Wang, Yizhun Zhu
<b>Aims:</b> Anemia of inflammation (AI), the second prevalent anemia, is associated with worse prognosis and increased mortality in numerous chronic diseases. We recently reported that the gasotransmitter hydrogen sulfide (H<sub>2</sub>S) suppressed the inflammatory activation of signal transducer and activator of transcription 3 (STAT3) and hepcidin, the critical mediators of AI. Adenosine 5'-monophosphate-activated protein kinase (AMPK) is a novel inflammatory regulator and might be activated by H<sub>2</sub>S...
December 6, 2016: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/27923273/decision-points-in-the-treatment-of-transfusional-iron-overload-in-patients-with-myelodysplastic-syndromes-why-when-and-how-to-chelate
#14
Farhan Imran, Pradyumna Phatak
Patients with myelodysplastic syndromes (MDS) differ from those with other transfusion-dependent conditions (eg, thalassemia) as they are typically older, have comorbid conditions, and a generally shorter life expectancy. The underlying disease process in MDS and frequent use of red blood cell transfusions lead to iron accumulation and ultimately organ damage. Whether iron-reducing interventions such as chelation therapy can improve outcomes in this population is currently under investigation. Areas Covered: We reviewed published English-language articles from PubMed on the topic of iron overload (IO) in MDS, and the use of iron chelation therapies (ICTs) to alleviate iron burden...
December 7, 2016: Expert Review of Hematology
https://www.readbyqxmd.com/read/27923138/metallogel-templated-synthesis-and-stabilization-of-silver-particles-and-its-application-in-catalytic-reduction-of-nitro-arene
#15
Mukesh Sharma, Plaban Jyoti Sarma, Manash Jyoti Goswami, Kusum K Bania
Metallogel of iron-carboxylates was obtained from trans-1,2-cyclohexanedicarboxylic acid in dimethylformamide (DMF) at basic condition. Spectroscopic and SEM morphology study of the iron-metallogel revealed that the iron complex with dicarboxylic acid was linked together via carboxylates and led to a supramolecular helical like architecture. The synthesized metallogel served as an excellent template for in-situ reduction of silver ion to silver particles micro to nano scale range. Variation of AgNO3 concentration shepherd to change the morphology of the Ag-particles...
November 20, 2016: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/27918922/removal-of-heavy-metals-from-acid-mine-drainage-using-chicken-eggshells-in-column-mode
#16
Ting Zhang, Zhihong Tu, Guining Lu, Xingchun Duan, Xiaoyun Yi, Chuling Guo, Zhi Dang
Chicken eggshells (ES) as alkaline sorbent were immobilized in a fixed bed to remove typical heavy metals from acid mine drainage (AMD). The obtained breakthrough curves showed that the breakthrough time increased with increasing bed height, but decreased with increasing flow rate and increasing particle size. The Thomas model and bed depth service time model could accurately predict the bed dynamic behavior. At a bed height of 10 cm, a flow rate of 10 mL/min, and with ES particle sizes of 0.18-0.425 mm, for a multi-component heavy metal solution containing Cd(2+), Pb(2+) and Cu(2+), the ES capacities were found to be 1...
December 2, 2016: Journal of Environmental Management
https://www.readbyqxmd.com/read/27918430/androgen-receptor-a-complex-therapeutic-target-for-breast-cancer
#17
REVIEW
Ramesh Narayanan, James T Dalton
Molecular and histopathological profiling have classified breast cancer into multiple sub-types empowering precision treatment. Although estrogen receptor (ER) and human epidermal growth factor receptor (HER2) are the mainstay therapeutic targets in breast cancer, the androgen receptor (AR) is evolving as a molecular target for cancers that have developed resistance to conventional treatments. The high expression of AR in breast cancer and recent discovery and development of new nonsteroidal drugs targeting the AR provide a strong rationale for exploring it again as a therapeutic target in this disease...
December 2, 2016: Cancers
https://www.readbyqxmd.com/read/27917348/resolution-of-constipation-anal-stricture-and-iron-deficiency-anemia-after-iron-infusion-an-analogy-with-plummer-vinson-syndrome
#18
Vijaypal Arya, Shikha Singh, Shashank Agarwal, Arjun Ohri
BACKGROUND: Anal stricture is a disabling condition which is often unresponsive to conservative medical management. The complications of surgical procedures such as dilatations and anoplasty make it a formidable treatment challenge. Through this case, we report and explore a new medical treatment for ano-rectal strictures with an analogy to Plummer Vinson syndrome. A 69-year-old male presented with chronic constipation, rectal pain, and easy fatigability. The physical exam was negative for anal fissure and a digital rectal examination could not be completed because an index finger could not be advanced through the narrowed anus...
2016: SpringerPlus
https://www.readbyqxmd.com/read/27916926/ulcerative-colitis-and-crohn-s-disease-are-associated-with-decreased-serum-selenium-concentrations-and-increased-cardiovascular-risk
#19
Teresa Castro Aguilar-Tablada, Miguel Navarro-Alarcón, Javier Quesada Granados, Cristina Samaniego Sánchez, José Ángel Rufián-Henares, Flor Nogueras-Lopez
The incidence of inflammatory bowel disease (IBD) and associated oxidative stress is increasing. The antioxidant mineral selenium (Se) was measured in serum samples from 106 IBD patients (53 with ulcerative colitis (UC) and 53 with Crohn's disease (CD)) and from 30 healthy controls. Serum Se concentrations were significantly lower in UC and CD patients than in healthy controls (p < 0.001) and significantly lower in CD patients than in UC patients (p = 0.006). Se concentrations in patients were significantly influenced by sex, body mass index (BMI), the inflammatory biomarker α-1-antitrypsin, surgery, medical treatment, the severity, extent, and form of the disease and the length of time since onset (p < 0...
December 1, 2016: Nutrients
https://www.readbyqxmd.com/read/27916511/liqustri-lucidi-fructus-inhibits-hepatic-injury-and-functions-as-an-antioxidant-by-activation-of-amp-activated-protein-kinase-in-vivo-and-in-vitro
#20
Hye Lim Seo, Su Youn Baek, Eun Hye Lee, Ju-Hee Lee, Seul-Gi Lee, Kwang-Youn Kim, Mi Hee Jang, Min-Hui Park, Joung-Hee Kim, Keun-Jun Kim, Hyeong Sik Lee, Soon-Cheol Ahn, Jong Rok Lee, Sook Jahr Park, Sang Chan Kim, Young Woo Kim
Medicinal herbs are used to treat or prevent various diseases, and function to regulate protective mechanisms as nutraceuticals. Fructus Ligustri lucidi is the fruit of Ligustrum lucidum and has been used for its tonic effects on the liver. This study was designed to examine the effects of Fructus Ligustri lucidi water extract (FLL) against severe oxidative stress and mitochondrial impairment in vivo and in vitro and to elucidate its cellular mechanisms of action. Treatment of HepG2 cells with arachidonic acid (AA) + iron successfully induced oxidative stress and apoptosis, as indicated by depletion of glutathione, formation of ROS, increases in mitochondrial membrane permeability (MMP), and altered expression of apoptosis-related proteins, such as procaspase-3 and Bcl-xL...
December 1, 2016: Chemico-biological Interactions
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