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Yan Zhang et al.
Proceedings of the National Academy of Sciences of the United States of America, 111(17), E1695-E1704 (2014-04-16)
Eukaryotic ribonucleotide reductases (RNRs) require a diferric-tyrosyl radical (Fe(III)2-Y•) cofactor to produce deoxynucleotides essential for DNA replication and repair. This metallocofactor is an important target of RNR-based therapeutics, although mechanisms of in vivo cofactor assembly, inactivation, and reactivation are poorly
Ina Danquah et al.
Tropical medicine & international health : TM & IH, 19(5), 563-567 (2014-06-06)
Acute symptomatic infection with Giardia duodenalis impairs iron absorption, but iron deficiency may protect against infections caused by various micro-organisms including parasites. We therefore examined the association of G. duodenalis infection and iron deficiency in 575 Rwandan children under 5
Chenyan Lv et al.
Biochemistry, 53(14), 2232-2241 (2014-04-01)
From an evolutionary point of view, plant and animal ferritins arose from a common ancestor, but plant ferritin exhibits different features as compared with the animal analogue. One major difference is that the 4-fold channels naturally occurring in plant ferritin
Jingrang Lu et al.
Journal of water and health, 12(4), 763-771 (2014-12-05)
A quantitative polymerase chain reaction assay (115 bp amplicon) specific to Escherichia coli K12 with an ABI(TM) internal control was developed based on sequence data encoding the rfb gene cluster. Assay specificity was evaluated using three E. coli K12 strains
Ping Luo et al.
Journal of environmental sciences (China), 25(11), 2344-2351 (2014-02-21)
Morphological changes within the porous architecture of laboratory scale zero valent iron (ZVI) permeable reactive barriers (PRBs), after exposure to different groundwater conditions, have been quantified experimentally for different ZVI/sand ratios (10%, 50% and 100%, W/W) with the aim of
Cecilia M Casadei et al.
Science (New York, N.Y.), 345(6193), 193-197 (2014-07-12)
Heme enzymes activate oxygen through formation of transient iron-oxo (ferryl) intermediates of the heme iron. A long-standing question has been the nature of the iron-oxygen bond and, in particular, the protonation state. We present neutron structures of the ferric derivative
Janneke Balk et al.
Annual review of plant biology, 65, 125-153 (2014-02-07)
Iron is an essential element for all photosynthetic organisms. The biological use of this transition metal is as an enzyme cofactor, predominantly in electron transfer and catalysis. The main forms of iron cofactor are, in order of decreasing abundance, iron-sulfur
Mary D Frame et al.
Nanotoxicology, 8(8), 867-875 (2013-09-03)
Single-walled carbon nanotubes synthesized with iron (Fe-SWCNT) or gadolinium (Gd-SWCNT) show promise as high performance multimodal contrast and drug-delivery agents. Our purpose was to evaluate potential vasoactive effects of SWCNT. Stable aqueous solutions of Fe-SWCNTs or Gd-SWCNTs were made using
Wei Wang et al.
Journal of environmental sciences (China), 25(9), 1726-1735 (2014-02-14)
Bamboo charcoal (BC) was used as starting material to prepare Co-Fe binary oxideloaded adsorbent (Co-Fe-MBC) through its impregnation in Co(NO3)2, FeCl3 and HNO3 solutions simultaneously, followed by microwave heating. The low-cost composite was characterized and used as an adsorbent for
Yatrik M Shah et al.
Gastroenterology, 146(3), 630-642 (2014-01-07)
Iron is required for efficient oxygen transport, and hypoxia signaling links erythropoiesis with iron homeostasis. Hypoxia induces a highly conserved signaling pathway in cells under conditions of low levels of O2. One component of this pathway, hypoxia-inducible factor (HIF), is
Reference method for measurement of the hepatic iron concentration.
Gary M Brittenham
American journal of hematology, 90(2), 85-86 (2014-12-10)
S J Geetha et al.
TheScientificWorldJournal, 2013, 315890-315890 (2013-12-10)
Under field conditions, inoculated rhizobial strains are at a survival disadvantage as compared to indigenous strains. In order to out-compete native rhizobia it is not only important to develop strong nodulation efficiency but also increase their competence in the soil
Ellinor I B Peerschke et al.
American journal of clinical pathology, 142(4), 506-512 (2014-09-23)
Evaluation of anemia, particularly iron deficiency, in patients with cancer is difficult. This study examined using the hemoglobin content of reticulocytes (RET-He) to rule out iron deficiency, as defined by serum iron studies (transferrin saturation <20%, serum iron <40 μg/dL
Sohail Amjad et al.
Pakistan journal of pharmaceutical sciences, 27(3), 445-452 (2014-05-09)
In Pakistan, a funded flour fortification program was launched for malnourished population, residing mainly in rural low income areas, but the urban population having comparatively better nutritional as well as economic status was focused wherein excessive intake of fortificants might
N M Makarova et al.
Klinicheskaia laboratornaia diagnostika, (1)(1), 42-44 (2013-07-03)
The sample for examination included 52 patients with chronic cardiac failure and 26 patients with anemia amongst. The expected increase of production of prohepsidin against the background of increased serum concentrations of anti-inflammatory cytokines was not detected. The tendency to
Stanley Zlotkin et al.
JAMA, 310(9), 938-947 (2013-09-05)
In sub-Saharan Africa, malaria is a leading cause of childhood morbidity and iron deficiency is among the most prevalent nutritional deficiencies. In 2006, the World Health Organization and the United Nations Children's Fund released a joint statement that recommended limiting
Robert C Hider et al.
Metal ions in life sciences, 13, 229-294 (2014-01-29)
Iron is a redox active metal which is abundant in the Earth's crust. It has played a key role in the evolution of living systems and as such is an essential element in a wide range of biological phenomena, being
Thomas A Russo et al.
Infection and immunity, 82(6), 2356-2367 (2014-03-26)
Hypervirulent (hypermucoviscous) Klebsiella pneumoniae (hvKP) strains are an emerging variant of "classical" K. pneumoniae (cKP) that cause organ and life-threatening infection in healthy individuals. An understanding of hvKP-specific virulence mechanisms that enabled evolution from cKP is limited. Observations by our
B Clevenger et al.
Anaesthesia, 70 Suppl 1, 20-28 (2014-12-03)
Pre-operative anaemia is a relatively common finding, affecting a third of patients undergoing elective surgery. Traditionally associated with chronic disease, management has historically focused on the use of blood transfusion as a solution for anaemia in the peri-operative period. Data
Kurinchi Selvan Gurusamy et al.
The Cochrane database of systematic reviews, 12(12), CD010640-CD010640 (2015-01-01)
Anaemia affects about a quarter of the world's population. An estimated 50% of anaemic people have anaemia due to iron deficiency. To assess the safety and efficacy of iron therapies for the treatment of adults with anaemia who are not
Wanmohd Azhar Wbin-Wan-Ibrahim et al.
Pakistan journal of pharmaceutical sciences, 26(4), 823-826 (2013-07-03)
Heavy metals in cigarette tobacco such as iron may cause a serious damage on human health. Surveys showed that the accumulation of certain toxic heavy metals like cadmium, mercury, iron is very often due to the effect of smoking. This
Theodore M Flynn et al.
Science (New York, N.Y.), 344(6187), 1039-1042 (2014-05-03)
Microbial reduction of ferric iron [Fe(III)] is an important biogeochemical process in anoxic aquifers. Depending on groundwater pH, dissimilatory metal-reducing bacteria can also respire alternative electron acceptors to survive, including elemental sulfur (S(0)). To understand the interplay of Fe/S cycling
Jinkyu Park et al.
Biochemistry, 52(52), 9413-9425 (2013-12-19)
Fermenting cells growing exponentially on rich (YPAD) medium underwent a transition to a slow-growing state as glucose levels declined and their metabolism shifted to respiration. During exponential growth, Fe import and cell-growth rates were matched, affording an approximately invariant cellular
Fabrication of biomolecule microarrays for cell immobilization using automated microcontact printing.
Cell-Based Microarrays, 83-95 (2018)
Xiao-Chun Xu et al.
Environmental technology, 34(17-20), 2853-2858 (2014-02-18)
Landfill leachate is posing an ever-greater environmental hazard. Recently, a process for purification combining activated carbon, microwave (MW) and Fenton oxidation has drawn much attention. In this study, the effectiveness of this process for the pretreatment of an old-age landfill
[Children's iron needs and how we best can protect the child's brain].
Staffan Berglund et al.
Lakartidningen, 111(11), 460-463 (2014-04-12)
Keith P West et al.
JAMA, 312(24), 2649-2658 (2014-12-24)
Maternal micronutrient deficiencies may adversely affect fetal and infant health, yet there is insufficient evidence of effects on these outcomes to guide antenatal micronutrient supplementation in South Asia. To assess effects of antenatal multiple micronutrient vs iron-folic acid supplementation on
Deniz Okumşoglu et al.
Water environment research : a research publication of the Water Environment Federation, 85(7), 604-620 (2013-08-16)
An acidic mining lake located in Can, Turkey was investigated to assess its water quality status and potential risk for environment. Morphological studies and water quality sampling were conducted to determine vertical and areal distributions of numerous water quality criteria
Eduard J van Beers et al.
Circulation research, 116(2), 298-306 (2014-11-08)
Patients with sickle cell disease (SCD) have markers of chronic inflammation, but the mechanism of inflammation and its relevance to patient survival are unknown. To assess the relationship between iron, inflammation, and early death in SCD. Using peripheral blood mononuclear
Ramesh Kumar et al.
Environmental technology, 35(13-16), 2018-2027 (2014-06-25)
Nanofiltration (NF) of ammoniacal wastewater containing phenol and cyanide has been investigated for effective separation of these hazardous pollutants and for the subsequent downstream chemical treatment resulting in valuable by-product generation. Four different types of composite polyamide commercial NF membranes
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