Platelet functions and energy metabolism in a patient with hexokinase deficiency
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چکیده
منابع مشابه
Platelet functions and energy metabolism in a patient with hexokinase deficiency.
We have studied the regeneration of adenosine triphosphate (ATP) in the glycolytic pathway in platelets with a 75% reduction in hexokinase (HK) activity and have investigated aggregation and Ca2+ secretion. HK-deficient platelets had a normal glycolytic flux in the resting state, but responded insufficiently to stimulation with thrombin (5 U/ml). In contrast, glycogen contents and glycogenolysi...
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Allopurinol metabolism in a patient with xanthine oxidase deficiency.
A patient with complete deficiency of xanthine oxidase would not be expected to oxidase allopurinol to oxipurinol if allopurinol did not have any alternative metabolic pathway. 400 mg of allopurinol was administered to a patient with xanthine oxidase deficiency, and plasma allopurinol, oxipurinol, hypoxanthine, and xanthine levels were determined serially by the use of high-performance liquid c...
متن کاملGeneralized hexokinase deficiency in the blood cells of a patient with nonspherocytic hemolytic anemia.
In a patient with nonspherocytic hemolytic anemia, a hexokinase deficiency was detected in the red cells (residual activity about 25% of normal) and in blood platelets (20%-35% of normal activity). Although the total hexokinase activity in lymphocytes was normal, the amount of hexokinase type I was decreased to about 50% of normal. However, the deficiency was compensated for by the appearance o...
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ژورنال
عنوان ژورنال: Blood
سال: 1984
ISSN: 0006-4971,1528-0020
DOI: 10.1182/blood.v63.1.147.bloodjournal631147