Photoferrotrophy is presumed to be an ancient type of photosynthetic metabolism in which bacteria use the reducing power of ferrous iron to drive carbon fixation. In this work the putative iron oxidoreductase of the photoferrotroph Rhodobacter ferrooxidans SW2 was cloned, purified, and characterized for the first time. This protein, FoxE, was characterized using spectroscopic, thermodynamic, an...

The occurrence of the iron-reducing phenomenon among some common fungi was studied. Results indicated that (i) the reduction of ferric iron to the ferrous state by fungi seems to be restricted to nitrate reductase-inducible strains such as Actinomucor repens, Alternaria tenuis, Fusarium oxysporum, and F. solani and (ii) the amount of dissolved ferrous iron may be reduced progressively by increa...

Question A 73-year-old male, referred by his GP with dyspepsia unresponsive to proton pump inhibitors. His past medical history included COPD, ischemic heart disease, Iron deficiency anaemia (IDA) investigated with colonoscopy and a colonic polyp removed 2012. In the absence of a clear treatable condition behind his IDA, his low Iron was treated with Iron supplement Ferrous Sulphate. His curren...

The purpose of the present work is to evaluate the iron bioavailability of stabilized iron (II) sulphate in industrialized fortified infant dessert. The prophylactic–preventive test in rats, using ferrous sulphate as the reference standard, was applied as the evaluating methodology. Thirty female Sprague–Dawley rats weaned, were randomized into three different groups (group 1: FeSO4 + IDF; grou...

The fungus Venturia inaequalis clone No. 36 isolated from Malus domestica cv. Gloster excretes a melanoprotein of 36 kDa in relatively high amounts during growth in liquid culture. The protein was isolated from the culture medium and purified to homogeneity. It was shown to contain melanin. After raising an antiserum against the isolated protein, the protein could be shown to be located in the ...

BACKGROUND We aimed to show the non-inferiority of home fortification with a daily dose of 3 mg iron in the form of iron as ferric sodium ethylenediaminetetraacetate (NaFeEDTA) compared with 12.5 mg iron as encapsulated ferrous fumarate in Kenyan children aged 12-36 months. In addition, we updated a recent meta-analysis to assess the efficacy of home fortification with iron-containing powders, ...

Abstract Background Some researches have shown the association between iron deficiency and migraine headache in adults. The aim of present study was to evaluate efficacy of ferrous sulfate treatment on migraine headaches of 5-15 years old migraineur children with iron deficiency. Materials and Methods In a quasi- experimental study, monthly frequency, seve...

Introduction: The Mars Exploration Rover (MER) missions have stimulated considerable thinking about the surficial geochemical evolution of Mars [1-4]. Among the major MER findings is the presence of the mineral, jarosite (a ferric sulfate salt), which suggests formation from an acid-sulfate brine. The objectives of this work were to (1) add ferric iron chemistry to an existing ferrous iron mode...

It has been shown that the oral administration of ferrous compounds, as compared with ferric salts of iron, resulted in somewhat more rapid absorption of iron from the gastrointestinal tract (results of studieswith radioactive isotopes (l)), and more rapid hemoglobin formation in anemia due to iron deficiency (2). From these results and from the fact that ferrous compounds in general are much m...

Ferrobacillus ferrooxidans was isolated and named by Leathen and Braley (1) in 1954 and reported to be an obligate chemoautotroph which utilizes the oxidation of inorganic ferrous iron as a primary energy source. A somewhat similar bacterium, called Thiobaeillus ferrooxiduns, had previously been isolated by Cohner, Temple, and Hinkle (2) and characterized as an obligate chemoautotroph which wou...