نتایج جستجو برای: hypophosphatasia
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AIMS Hypophosphatasia, a rare inherited disease characterized by defective mineralization of bone and teeth, is caused by various mutations in the tissue-nonspecific isoenzyme of alkaline phosphatase (TNSALP) gene. Our aim was to determine the mutations on TNSALP gene in three Chinese children diagnosed as having hypophosphatasia. METHODS Genomic DNA was extracted from whole blood samples of ...
We describe the case of a woman with hypophosphatasia previously exposed to bisphosphonate and subsequently treated with teriparatide (recombinant human PTH 1-34).A Caucasian woman sustained bilateral femur stress fractures when she was fifty years old, which widened despite use of calcium, vitamin D and risedronate for 2.5 years and required intramedullary rods for stabilization. Hypophosphata...
Hypophosphatasia is an inherited disease in which a deficiency of the bone/liver/kidney or tissue nonspecific isoenzyme of alkaline phosphatase (AP; EC 3.1.3.1) occurs. All forms of the disease are characterized clinically by defective mineralization. Several biochemical abnormalities are associated with the deficiency of AP activity, e.g., increased urinary excretion of inorganic pyrophosphate...
H ypophosphatasia is a rare inherited disorder characterized by a wide spectrum of defects in mineralized tissues. The disease is usually inherited as an autosomal recessive trait with a prevalence of approximately 1/100,000 live births. 1 The clinical manifestations are highly variable, ranging from an almost total lack of skeletal formation to the premature loss of the permanent anterior teet...
Hypophosphatasia (HPP) is a rare, potentially life-threatening disease characterised by hypomineralisation of bones and teeth. The fundamental defect is reduced functional activity of the enzyme tissue-nonspecific alkaline phosphatase (usually just termed alkaline phosphatase [ALP] in clinical practice). Homozygous or compound heterozygous mutations in the ALPL gene result in the most severe ph...
Markedly increased circulating concentrations of pyridoxal-5'-phosphate (PLP) were found in each of 14 patients representing all clinical forms of hypophosphatasia, an inborn error characterized by deficient activity of the tissue nonspecific (bone/liver/kidney) isoenzyme of alkaline phosphatase (AP). The mean PLP concentration in plasma was 1174 nM (range, 214-3839 nM) in the patients and 57 +...
phatase may reflect enzyme contributions from bone, liver, and intestine. We have investigated serum alkaline phosphatases in two siblings with hypophosphatasia. After administration of long-chain triglycerides, the major alkaline phosphatase component of their sera was shown to be of intestinal origin on the basis of inhibition by l-phenylalanine. Starch block electrophoresis suggested that th...
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