نتایج جستجو برای: iron
تعداد نتایج: 142520 فیلتر نتایج به سال:
Background: Prohepcidin, a liver-derived peptide with antimicrobial properties, is regulated by factors such as iron load and inflammation. Hepcidin is a central player in iron homeostasis. It downregulates the iron exporter ferroportin, thereby inhibiting iron absorption, release and recycling. Thus, prohepcidin increases the possibility of iron-limited erythropoiesis and development of anemia...
In order to study the effect of zero-valent iron nanoparticles on morphological and physiological traits of canola (Brassica napus L. cv. 'Hayola 401') under salinity stress, a research was conducted under controlled conditions in factorial based on completely randomized design in three replicates. In the first phase, the zero-valent iron nanoparticles were synthesized and in the second phase, ...
Parkinson disease is one of the neurodegenetive disease with a prevalence of about 1% in people older than 65.from a pathological point of view,degeneration of neuromelanin cells in pars compacta of substantia nigra has been established.the reason of degeneration is unknouwn.increase in iron concentration in substantia of parkinson,s patients has been established.the increase of iron in this p...
objective: oral iron drops are recommended for children aged 6-24 months to prevent iron-deficiency anemia. however, their use is associated with the potential risk of erosion and microhardness reduction of primary teeth enamel due to their high acidity. it seems that the combination of silicone oil, nano-hydroxyapatite and chitosan powder may be able to improve the microhardness and surface st...
conclusions this is the first report on the prevalence of iron acquisition genes among a. baumannii isolates collected from patients with urinary tract infections. the high prevalence of iron acquisition genes in a. baumannii isolates suggests that these virulence factors play an important role in the development of urinary tract infections. results a high prevalence of genes encoding iron acqu...
\Vitli the technical assistance of Arthur L. Foy T lIE STIMULUS to gastrointestinal absorption of iron remains unknown. Previous work seems to indicate that hepatic iron and total body iron stores are not as important as the rate of iron utilization in regulating iron absorption.’ Stimulation of erythropoiesis by blood letting increases iron utilization. However, following acute phlebotomy ther...
Systemic iron homeostasis depends on the regulated expression of hepcidin, a peptide hormone that negatively regulates iron egress from intestinal cells and macrophages by altering the expression of the cellular iron exporter ferroportin. In doing so, hepcidin can control both the total body iron by modulating intestinal iron absorption as well as promote iron available for erythropoiesis by af...
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, severity, duration and disability of headac...
SYNOPSIS A method is described for measuring the plasma unsaturated iron-binding capacity in the presence of very high concentrations of iron as iron-dextran. The procedure utilizes 59Fe to label the apotransferrin with subsequent separation of ionic iron from transferrin-bound iron on an ion exchange or Sephadex G.25 column. The unsaturated iron-binding capacity has been measured in rabbits an...
Background: Anemia is the most common nutritional disorder in the world in which iron deficiency is one of its main causes. The prevalence of obesity and risk of iron deficiency anemia in these individuals is increasing. The present study examined the association between iron deficiency, dietary intake and obesity and obesity-induced inflammation in female students. Methods: This descriptive c...
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