2007
DOI: 10.1002/ajh.21075
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Mechanisms of iron loading and toxicity

Abstract: Normal iron homeostasis is a finely balanced system that reflects iron absorption, loss and utilization. The body has no mechanism for the active excretion of iron, so body iron levels are controlled at the point of absorption in the small intestine. Disturbances in this equilibrium, such as those leading to enhanced absorption, can have significant clinical consequences. Continued excessive iron uptake is followed by iron deposition in various tissues, ultimately leading to tissue damage, and possibly end‐org… Show more

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Cited by 117 publications
(95 citation statements)
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References 35 publications
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“…This form of iron is able to generate free radical via the Fenton-type reactions, leading to peroxidative damage to membrane lipid and protein [40] . The rate of NTBI uptake into cells is approximately 300-fold greater than that of transferrin-bound iron [41] due to its independence on the presence of transferrin receptor [42] and none of feedback-regulated process [43] .…”
Section: Non-transferrin-bound Ironmentioning
confidence: 99%
“…This form of iron is able to generate free radical via the Fenton-type reactions, leading to peroxidative damage to membrane lipid and protein [40] . The rate of NTBI uptake into cells is approximately 300-fold greater than that of transferrin-bound iron [41] due to its independence on the presence of transferrin receptor [42] and none of feedback-regulated process [43] .…”
Section: Non-transferrin-bound Ironmentioning
confidence: 99%
“…Demir ferröz (Fe +2 ) ve ferrik (Fe +3 ) durumlar arasında kolaylıkla birbirine dönüşebilme özelliğinden dolayı oksijenasyon, hidroksilasyon ve buna benzer birçok esansiyel metabolik olayda görev almaktadır. Bu nedenle, demir insan yaşamı için vazgeçilmez bir elementtir ve demir metabolizmasındaki değişiklikler insan sağlığını önemli şekilde etkilemektedir (25).…”
Section: Demir Toksisitesiunclassified
“…yüksek oranda bulunan ve hücre içi demir bağlama kapasitesini aşan LPI hücreler için en toksik formdur. Bu da hücre içinde LPI'in oksijen ilişkili doku hasarlanmasına ve bunu takiben organ fonksiyon bozukluğuna neden olabilecek reaktif oksijen radikallerine ve demir toksisitesine yol açar (25).…”
Section: Demir Toksisitesiunclassified
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“…In each transfusion the patient receives iron in excess (approximately 250 mg) which gradually accumulates in many tissues causing morbidity. When ferritin is trapped in lysosomal membranes it is termed hemosiderin which is an abnormal and insoluble form of iron (2).…”
Section: Commentsmentioning
confidence: 99%