نتایج جستجو برای: hemochromatosis hfe gene polymorphisms

تعداد نتایج: 1171061  

Journal: :Blood 2002
Daniel F Wallace Palle Pedersen Jeannette L Dixon Peter Stephenson Jeffrey W Searle Lawrie W Powell V Nathan Subramaniam

Hemochromatosis is a common disorder characterized by excess iron absorption and accumulation of iron in tissues. Usually hemochromatosis is inherited in an autosomal recessive pattern and is caused by mutations in the HFE gene. Less common non-HFE-related forms of hemochromatosis have been reported and are caused by mutations in the transferrin receptor 2 gene and in a gene localized to chromo...

2002
Richard S. Ajioka Joanne E. Levy Nancy C. Andrews James P. Kushner

Hereditary hemochromatosis is most commonly caused by homozygosity for a point mutation (C282Y) in the human hemochromatosis gene (HFE). The mechanism by which HFE regulates iron absorption is not known, but the C282Y mutation results in loss of cell surface expression of the human hemachromatosis protein (HFE) and hyperabsorption of iron by the duodenal enterocyte. Mice homozygous for a deleti...

Journal: :Blood 2002
Richard S Ajioka Joanne E Levy Nancy C Andrews James P Kushner

Hereditary hemochromatosis is most commonly caused by homozygosity for a point mutation (C282Y) in the human hemochromatosis gene (HFE). The mechanism by which HFE regulates iron absorption is not known, but the C282Y mutation results in loss of cell surface expression of the human hemachromatosis protein (HFE) and hyperabsorption of iron by the duodenal enterocyte. Mice homozygous for a deleti...

Journal: :Annales de biologie clinique 2012
Anne-Marie Jouanolle Victoria Gérolami Cécile Ged Bernard Grandchamp Gérald Le Gac Serge Pissard Jacques Rochette Patricia Aguilar-Martinez

HFE-related hemochromatosis (HFE hemochromatosis) or type 1 hemochromatosis is an autosomal recessive disease characterized by progressive iron overload usually expressed in adulthood. The HFE gene, located on the short arm of chromosome 6 (6p21.3), encodes a protein that plays a crucial role in iron metabolism by modulating hepcidin synthesis in the liver. Homozygosity for the p.Cys282Tyr muta...

Journal: :middle east journal of digestive diseases 0
masoud m. malekzadeh amir reza radmard alireza nouroozi mohammad reza akbari marzie amini behrooz navabakhsh

background hereditary hemochromatosis (hh) is a very rare disease in iran and reported cases are all negative for hfe mutation. we report a family affected by severe juvenile hemochromatosis (jh) with a detailed molecular study of the family members. methods we studied a pedigree with siblings affected by juvenile hh and followed them for 3 years. microsatellite and gene sequencing analysis was...

Journal: :The Journal of the Association of Physicians of India 2014
S K Sharma Sangram Mangudkar Mehul Rathod Amrita Verma R L V Phanikumar Subodh Garg Ajinkya Dhakne Ramdas Barure

Hereditary hemochromatosis (HH) is manifested as iron overload in different organs due to homozygosity of a single autosomal mutation. Two different mutations C282Y and H63D in the HFE gene have been associated with hereditary hemochromatosis cases. This disease is seen in northern european populations, but in India it is a rare disease. We report a young male with severe abnormalty of liver fu...

Journal: :Neurology 2005
E F Goodall M J Greenway I van Marion C B Carroll O Hardiman K E Morrison

Iron misregulation promotes oxidative stress and abnormally high iron levels have been found in the spinal cords of patients with ALS. The authors investigated whether HFE gene polymorphisms, linked to hemochromatosis, are associated with ALS using two independent populations of patients with sporadic ALS and controls (totaling 379 patients and 400 controls). They found that the H63D polymorphi...

Journal: :Clinical chemistry 2001
G Le Gac C Mura C Férec

BACKGROUND Between 4% and 35% of hereditary hemochromatosis (HC) probands are C282Y or H63D heterozygotes or lack both of these two common HFE mutations, and 15 novel HFE mutations have been described recently. We evaluated denaturing HPLC (DHPLC) for screening of the whole HFE coding region and further defined whether HC probands with an incomplete HFE genotype carry uncommon mutations. METH...

Journal: :گوارش 0
amirhooshang mohamadalizadeh mohsen masoodi rahim aghazadeh mohamadjavad ehsaniardakani mozhgan forootan mohamadreza zali

hemochromatosis, especially with cardiac and liver problem, is rare in iran. we report a young female with pulmonary hypertension and abnormal liver function tests due to non hfe- related hemochromatosis.

Journal: :The Journal of nutrition 2011
Wint Nandar James R Connor

Iron accumulation in the brain and increased oxidative stress are consistent observations in many neurodegenerative diseases. Thus, we have begun examination into gene mutations or allelic variants that could be associated with loss of iron homeostasis. One of the mechanisms leading to iron overload is a mutation in the HFE gene, which is involved in iron metabolism. The 2 most common HFE gene ...

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