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There are five types of hereditary hemochromatosis: type 1, 2 (2A, 2B), 3, 4 [9] and 5, [10] all caused by mutated genes. Hereditary hemochromatosis type 1 is the most frequent, and uniquely related to the HFE gene. It is most common among those of Northern European ancestry, in particular those of Celtic descent. [11]
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.
The homozygous HFE-H63D mutation is the cause of classic and treatable hemochromatosis in only 6.7% of its carriers. [25] H63D syndrome is independently a distinct entity, and the incidence in homozygous carriers of the H63D mutation is approximately 10%.
The incidence of juvenile hemochromatosis in the general population remains unknown at this time, however it is very rare. It more commonly occurs in those of European descent, becoming apparent during the first to third decades of life, and affects males and females at similar rates. [2] [3] [4]
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 ...
"It lowers life expectancy by as much as 2.4 years compared to a healthy weight," said American Heart Association volunteer Latha P. Palaniappan, M.D., a professor of cardiovascular medicine at ...
In fact, if all Americans over 40 moved as much as the most active 25%, the average life expectancy would rise by about five years, new research suggests. For the least active people, a little ...
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.
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