lunes, 15 de julio de 2013

Hereditary hemochromatosis - Conditions - GTR - NCBI

Hereditary hemochromatosis - Conditions - GTR - NCBI

Hereditary hemochromatosis

Disease characteristics

Excerpted from the GeneReview: HFE-Associated Hereditary Hemochromatosis
HFE-associated hereditary hemochromatosis (HFE-HH) is characterized by inappropriately high absorption of iron by the gastrointestinal mucosa. The phenotypic spectrum of HFE-HH is now recognized to include Those with clinical HFE-HH, in which manifestations of end-organ damage secondary to iron storage are present; Those with biochemical HFE-HH, in which the only evidence of iron overload is increased transferrin-iron saturation and increased serum ferritin concentration; and Non-expressing p.Cys282Tyr homozygotes in whom neither clinical manifestations of HFE-HH nor iron overload are present. Clinical HFE-HH is characterized by excessive storage of iron in the liver, skin, pancreas, heart, joints, and testes. In untreated individuals: early symptoms may include abdominal pain, weakness, lethargy, and weight loss; the risk of cirrhosis is significantly increased when the serum ferritin is higher than 1,000 ng/mL; other findings may include progressive increase in skin pigmentation, diabetes mellitus, congestive heart failure and/or arrhythmias, arthritis, and hypogonadism. Clinical HFE-HH is more common in men than women.
 

Disease characteristics

Excerpted from the GeneReview: HFE-Associated Hereditary Hemochromatosis
HFE-associated hereditary hemochromatosis (HFE-HH) is characterized by inappropriately high absorption of iron by the gastrointestinal mucosa. The phenotypic spectrum of HFE-HH is now recognized to include Those with clinical HFE-HH, in which manifestations of end-organ damage secondary to iron storage are present; Those with biochemical HFE-HH, in which the only evidence of iron overload is increased transferrin-iron saturation and increased serum ferritin concentration; and Non-expressing p.Cys282Tyr homozygotes in whom neither clinical manifestations of HFE-HH nor iron overload are present. Clinical HFE-HH is characterized by excessive storage of iron in the liver, skin, pancreas, heart, joints, and testes. In untreated individuals: early symptoms may include abdominal pain, weakness, lethargy, and weight loss; the risk of cirrhosis is significantly increased when the serum ferritin is higher than 1,000 ng/mL; other findings may include progressive increase in skin pigmentation, diabetes mellitus, congestive heart failure and/or arrhythmias, arthritis, and hypogonadism. Clinical HFE-HH is more common in men than women.

Associated genes

No hay comentarios:

Publicar un comentario