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Elevated serum ferritin, an indicator of blood iron levels, and transferrin saturation, which is involved with absorption of iron from the gut, are very common. [2] [3] Transferrin saturation may approach or reach 100%, where a normal value would lie between 16% and 45%. If transferrin saturation is normal, juvenile hemochromatosis can be ruled ...
The absorption of dietary iron is a variable and dynamic process. The amount of iron absorbed compared to the amount ingested is typically low, but may range from 5% to as much as 35% depending on circumstances and type of iron. The efficiency with which iron is absorbed varies depending on the source.
Haemochromatosis is protean in its manifestations, i.e., often presenting with signs or symptoms suggestive of other diagnoses that affect specific organ systems.Many of the signs and symptoms below are uncommon, and most patients with the hereditary form of haemochromatosis do not show any overt signs of disease nor do they have premature morbidity, if they are diagnosed early, but, more ...
The iron storage disorder hereditary hemochromatosis (HHC) is an autosomal recessive genetic disorder that usually results from defects in this gene. The disease-causing genetic variant most commonly associated with hemochromatosis is p. C282Y. [14]
Absorption of dietary iron in iron salt form (as in most supplements) varies somewhat according to the body's need for iron, and is usually between 10% and 20% of iron intake. Absorption of iron from animal products, and some plant products, is in the form of heme iron, and is more efficient, allowing absorption of from 15% to 35% of intake.
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.
In normal iron regulation, iron is absorbed in the intestine, and ferroportin transports iron from the cells of the intestinal lining into the bloodstream. Iron in the bloodstream is then bound by transferrin, which carries the iron to target cells. Iron is stored in cells and blood serum in a protein called ferritin. Reticuloendothelial ...
73649 Ensembl ENSG00000071967 ENSMUSG00000027015 UniProt Q53TN4 Q925G2 RefSeq (mRNA) NM_024843 NM_001127383 NM_001256909 NM_028593 RefSeq (protein) NP_001120855 NP_001243838 NP_079119 NP_082869 Location (UCSC) Chr 2: 171.52 – 171.56 Mb Chr 2: 70.95 – 70.97 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Duodenal cytochrome B (Dcytb) also known as cytochrome b reductase 1 is an ...