نتایج جستجو برای: iron

تعداد نتایج: 142520  

Journal: :journal of advanced medical sciences and applied technologies 0
alireza ebrahiminezhad fasa university of medical sciences zahra manafi aydin berenjian sedigheh kianpour younes ghasemi

iron reducing bacteria (irb) are one of the most applicable microorganisms in various industrial and environmental activities. these bacteria play a main role in the natural iron transformation. they act in a reverse metabolic pathway in contrast to iron oxidizing bacteria. in the anaerobic conditions irb are capable to use ferric ion as the final electron acceptor and reduce fe3+ to fe2+. what...

عبدل‌زاده, احمد , کیانی چالمردی, زهرا ,

Silicon (Si) nutrition may alleviate biotic and abiotic stresses including heavy metal deficiency and toxicity in plants. Iron deficiency and toxicity are important limiting factors in growth of rice. In the present study, role of Si nutrition on alleviation of iron deficiency and toxicity was investigated in rice plants. Plants were cultivated in greenhouse in hydroponics, using Yoshida soluti...

Background: Iron is an essential trace element in cell proliferation. Several investigations demonstrate that iron deprivation inhibits cell proliferation. However, the impact of iron on telomerase activity of activated lymphocytes remains unexplained to date. Objective: In this study, the effect of iron on the proliferation and telomerase activity of lymphocytes stimulated by phytohemagglutini...

Journal: :The Journal of nutrition 2007
James H Swain LuAnn K Johnson Janet R Hunt

Commercial elemental iron powders (electrolytic and reduced iron), as well as heme iron supplements, were tested for efficacy in improving the iron status of women. In a randomized, double-blind trial, 51 women with moderate to low iron stores received daily for 12 wk: 1) placebo, 2) 5 mg iron as heme iron or 50 mg iron as 3) electrolytic iron, 4) reduced iron, or 5) FeSO(4). Treatments were pr...

Journal: :Journal of applied physiology 2009
Erica L Unger Christopher J Earley John L Beard

Iron movement between organ pools involves a dynamic equilibrium of iron efflux and uptake, and homeostatic mechanisms are likely involved in providing iron to cells and organs when required. Daily iron levels in the plasma pool fluctuate with the diurnal cycle, but clear explanations regarding the objectives and regulation of the flux are lacking. The association between diurnal cycle and iron...

Journal: :مجله دانشکده پزشکی دانشگاه علوم پزشکی تهران 0
علی ربانی rabbani a آزیتا آذرکیوان azar keiwan a محمد فرهادی لنگرودی farhadi langeroudi m غلامحسین کوروسدری korosdari gh.h

thalassemia is the most prevalent genetic disorder in iran and around the world and these patients need regular careful care. the present study reports results of routine examination of patients visited thalassemia clinic of tehran. data about clinical and laboratory examinations of 413 thalassemic were extracted and analyzed. the prevalence of heart complications, diabetes, growth retardation,...

Journal: :Applied and environmental microbiology 2016
Carlos Andrés Martínez-Garay Rosa de Llanos Antonia María Romero María Teresa Martínez-Pastor Sergi Puig

Iron is an essential micronutrient for all eukaryotic organisms. However, the low solubility of ferric iron has tremendously increased the prevalence of iron deficiency anemia, especially in women and children, with dramatic consequences. Baker's yeast Saccharomyces cerevisiae is used as a model eukaryotic organism, a fermentative microorganism, and a feed supplement. In this report, we explore...

ژورنال: دانشور پزشکی 2009
افشار, دکتر رضا , ثانوی, دکتر سوزان , طالقانی‌دوزدوزانی, دکتر حسن , قاسمی, دکتر حسن ,

  Background and Objective: Anemia is one of the major disabling consequences in chronic kidney (CKD) disease which has different etiologies .Inadequate production of Erythropoietin (EPO) is the main cause of anemia. Iron shortage is the other important cause. The aim of this study is to evaluate Anemia Prevalence and iron storage in CKD patients in pre-dialysis and hemodialysis stages.   Mater...

Journal: :The American journal of clinical nutrition 2013
Julia L Finkelstein Kimberly O O'Brien Steven A Abrams Nelly Zavaleta

BACKGROUND Effects of prenatal iron supplementation on maternal postpartum iron status and early infant iron homeostasis remain largely unknown. OBJECTIVE We examined iron absorption and growth in exclusively breastfed infants in relation to fetal iron exposure and iron status during early infancy. DESIGN Longitudinal, paired iron-absorption (⁵⁸Fe) studies were conducted in 59 exclusively b...

Abdolahzad, H, Aghdashi, M, Falah, Sh, Golpayegani, MR, jamshidi, Kh, mohammad HoseiniAzar, MR, Sharifi, E,

Background and Objectives: Accumulation of iron is the most common consequences of repeated blood transfusions in β-thalassemia major patients. Iron chelating effects of alpha-lipoic acid have been reported by several studies. The aim of this study was to investigate effects of supplementation with alpha-lipoic acid, as a chelator, on serum iron and hematological indices in these patients.  Ma...

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