نتایج جستجو برای: hypophosphatemic rickets
تعداد نتایج: 5798 فیلتر نتایج به سال:
X-linked hypophosphatemia (XLH) is the most common form of familial hypophosphatemic rickets and it is caused by loss-of-function mutations in the PHEX gene. Recently, a wide variety of PHEX gene defects in XLH have been revealed; these include missense mutations, nonsense mutations, splice site mutations, insertions, and deletions. Recently, we encountered a 2-year-9-month-old female with spor...
Familial hypophosphatemic rickets is transmitted in most cases as an X-linked dominant trait and results from the mutation of the PHEX gene predominantly expressed in osteoblast and odontoblast. Patients with rickets have been reported to display important dentin defects. Our purpose was to explore the structure, composition and distribution of noncollagenous proteins (NCPs) of hypophosphatemic...
Rickets and osteomalacia are associated with hypophosphatemia in several disease states, including X-linked hypophosphatemic rickets, autosomal-dominant hypophosphatemic rickets, and tumor-induced osteomalacia. Recent advances in the understanding of these diseases include discovery of mutations in the genes encoding human phosphate-regulating gene with homologies to endopeptidases on the X chr...
background: tyrosinemia type 1 is an autosomal recessive metabolic disorder, which typically affects liver and kidneys. it is caused by a defect in fumarylacetoacetate hydrolase or fumarylacetoacetase (fah) enzyme, the final enzyme in the tyrosine degradation pathway. the disease typically manifests as early onset type in early infancy with acute hepatic crisis with hepatomegaly and bleeding te...
backgroundrickets is a disorder due to impaired metabolism of bone mineralization which caused by low concentrations of extra-cellular calcium or phosphate. in children, hypophosphatemic rickets (hr) happen malabsorption of phosphate and increasing of renal tubular loss.case presentation we present the case of a 4-year-old girl who had medical history of hr with failure to thrive (ftt). child h...
Rickets is not a disease of the past. We described a toddler who developed hypophosphatemic rickets associated with the use of elemental formula. This case highlights the importance of frequent monitoring of mineral metabolism in children receiving elemental formula and considering rickets in the workup of child abuse.
Serum phosphate levels are regulated in both calcium-dependent and -independent fashions. Active vitamin D increases while PTH decreases serum phosphate levels in association with the elevation of serum calcium. On the other hand, a calcium-independent phosphaturic factor, historically called phosphatonin is believed to exert a physiological function based on findings in hereditary and tumor-in...
Phosphate regulating gene with homologies to endopeptidases on the X-chromosome (PHEX) is a common cause of X-linked hypophosphatemic (XLH) rickets. Diverse PHEX gene mutations have been reported; however, gene mutations in sporadic rickets are less common than in XLH rickets. Herein, we describe a 50-year-old female patient with sporadic hypophosphatemic rickets harboring a novel splicing-site...
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