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Ferritin is a biomarker that reflects iron stores in the body. Testing ferritin levels on a blood panel is one of the diagnostic thresholds of diagnosing iron deficiency, says von Drygalski. The ...
These oxidative molecules can cause oxidative brain damage. Iron that is bound to ferritin in nonreactive. [1] Fenton Reaction (1) Fe 2+ + H 2 O 2 → Fe 3+ + HO• + OH − (2) Fe 3+ + H 2 O 2 → Fe 2+ + HOO• + H + The ferritin protein is made up of heavy chain (H) and light chain (L) subunits. In neuroferritinopathy, the gene encoding the ...
LID is present in Stages 1 and 2, before anemia occurs in Stage 3. These first two Stages can be interpreted as depletion of iron stores and reduction of effective iron transport. [4] Stage 1 – Characterized by loss of iron stores in the bone marrow while hemoglobin and serum iron levels remain normal. Serum ferritin falls to less than 20 ng/mL.
Iron deficiency, or sideropenia, is the state in which a body lacks enough iron to supply its needs. Iron is present in all cells in the human body and has several vital functions, such as carrying oxygen to the tissues from the lungs as a key component of the hemoglobin protein, acting as a transport medium for electrons within the cells in the form of cytochromes, and facilitating oxygen ...
Iron can be stored in ferritin as ferric iron due to the ferroxidase activity of the ferritin heavy chain. [28] Dysfunctional ferritin may accumulate as hemosiderin, which can be problematic in cases of iron overload. [29] The ferritin storage iron pool is much larger than the labile iron pool, ranging in concentration from 0.7 mM to 3.6 mM. [25]
The ferritin levels measured usually have a direct correlation with the total amount of iron stored in the body. However, ferritin levels may be artificially high in cases of anemia of chronic disease, where ferritin is elevated in its capacity as an inflammatory acute phase protein and not as a marker for iron overload. [citation needed]
Iron-deficiency anemia is confirmed by tests that include serum ferritin, serum iron level, serum transferrin, and total iron binding capacity. [59] A low serum ferritin is most commonly found. However, serum ferritin can be elevated by any type of chronic inflammation and thus is not consistently decreased in iron-deficiency anemia. [23]
Iron overload (also known as haemochromatosis or hemochromatosis) is the abnormal and increased accumulation of total iron in the body, leading to organ damage. [1] The primary mechanism of organ damage is oxidative stress, as elevated intracellular iron levels increase free radical formation via the Fenton reaction.