نتایج جستجو برای: hereditary hemochromatosis
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Iron and its binding proteins have immunoregulatory properties, and shifting of immunoregulatory balances by iron excess or deficiency may produce severe, deleterious physiological effects. Effects of iron overload include decreased antibody-mediated and mitogen-stimulated phagocytosis by monocytes and macrophages, alterations in T-lymphocyte subsets, and modification of lymphocyte distribution...
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Hereditary hemochromatosis (HH) is an autosomal recessive disorder characterized by enhanced intestinal absorption of dietary iron. Without therapeutic intervention, iron overload leads to multiple organ damage such as liver cirrhosis, cardiomyopathy, diabetes, arthritis, hypogonadism and skin pigmentation. Most HH patients carry HFE mutant genotypes: homozygosity for p.Cys282Tyr or p.Cys282Tyr...
OBJECTIVE To determine the prevalence, clinical picture, and disease burden of arthritis in patients with hereditary hemochromatosis. METHODS In this cross-sectional observational study of 199 patients with hemochromatosis and iron overload, demographic and disease-specific variables, genotype, and organ involvement were recorded. The prevalence, intensity, and localization of joint pain were...
Global sequencing approach for characterizing the molecular background of hereditary iron disorders.
BACKGROUND New genetic forms of hereditary hemochromatosis (HH) or hereditary hyperferritinemia (HF) have been identified over the last few years, and abnormalities of various genes may interact in a single patient. This study aimed to develop a rapid automated method for sequencing the main genes involved. METHODS We used a standard 96-well microplate with a single PCR condition in an adapta...
In this issue of Blood, Wu et al describe the molecular function of HFE, the gene most commonly mutated in hereditary hemochromatosis (HH). HH is the most frequent genetic disorder of the Western world. The authors show that HFE prevents ubiquitination and proteasomal degradation of bone-morphogenetic protein (BMP) receptor type I (Alk3), thereby increasing expression of this receptor on the ce...
Hereditary hemochromatosis (HH) is a not uncommon auto-somal recessive and potentially life-threatening disease. The hemochromatosis gene was identified by Feder et al. in 1996. About 1 in 200 individuals is estimated to be homozygous for the most common mutation—C282Y/C282Y. In the classical form of the disease, cysteine is substituted by tyrosine at amino acid 282 in both alleles. The so-call...
Hereditary hemochromatosis is one of the most common hereditary disorders in Caucasians.The disease is linked to two single-nucleotide polymorphisms (SNPs) in the HFE gene.The two point mutations result in a change of Cys to Tyr at position 282 and His to Asp at position 63 in the resultant protein.We have developed a single-nucleotide extension (SNE) assay for hereditary hemochromatosis geneti...
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