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Some evidence suggests that hereditary haemochromatosis patients affected with other liver ailments such as hepatitis or alcoholic liver disease have worse liver disease than those with either condition alone. Also, juvenile form of primary haemochromatosis (Hemochromatosis type 2) present in childhood with the same consequences of iron overload.
Treatment for hemochromatosis type 3 may include reducing iron levels by removing blood (phlebotomy), iron chelation therapy, diet changes, and treatment for complications of the disease. The purpose of the treatment is to reduce the amount of iron in the body to normal levels, prevent or delay organ damage from excess iron, and maintain normal ...
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.
Some individuals with the homozygous H63D variant may show signs of heart disease, cardiomyopathies, and disturbances in the calcium channels in particular. [20] [21] The homozygous H63D variant is an indicator of the iron metabolism disorder hemochromatosis, which may increase the risk of developing a fatty liver. [22]
Hemochromatosis type 4 is a hereditary iron overload disorder that affects ferroportin, an iron transport protein needed to export iron from cells into circulation. [1] Although the disease is rare, it is found throughout the world and affects people from various ethnic groups.
The disease-causing genetic variant most commonly associated with hemochromatosis is p. C282Y. [ 14 ] About 1/200 of people of Northern European origin have two copies of this variant; they, particularly males, are at high risk of developing hemochromatosis. [ 15 ]
Juvenile hemochromatosis can be caused by inheriting two mutated copies , one from each parent, of the genes for the proteins hemojuvelin (HFE2/HJV) or hepcidin (HAMP), and the disease can be subdivided into hemochromatosis types 2A and 2B according to which gene/protein is affected. [2] [3]
For example, hemochromatosis is the name given to several different heritable diseases with the same outcome, excess absorption of iron. These variants all reflect a failure in a metabolic pathway associated with iron metabolism, however mutations that cause hemochromatosis can occur at different gene loci. Mutations have occurred at each locus ...