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Von Gierke's Disease

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Uric Acid stones precipitate under these circumstances increased urinary uric acid concentration secondary to overproduction, increased renal tubular uric acid secretion, decrease renal tubular uric acid reabsorption, decrease in the urinary volume or increased hydrogen ion concentration. Some causes include purine enzyme defects, leading to overproduction and increased uric acid concentration in the urine for example, HGPRT deficiency, PRPP synthetase overactivity and G6P deficiency. Other causes include myeloproliferative and lymphoproliferative disorders, hemolytic anemias or cytotoxic drug related causes. Lastly increased dietary purine intake, hyperuricemia, dehydration, decreased glomerular filtration and renal tubular uric acid reabsorption …show more content…

The most commonly identified X-linked mutation of PRPP synthetase causes hyper-activity of the enzyme, leading to increased substrates for purine synthesis which then leads to increased purine production and degradation eventually leading to hyperuricemia and gout. In Von Gierke's disease Glucose-6-phosphatase is deficient causing sever fasting hypoglycemia, glycogen buildup in the liver, blood lactate, triglycerides, increased uric acid and hepatomegaly. Individuals with myeloproliferative or lymphoproliferative disorders can develop uric acid stones as a result of chemotherapy treatment. With dietary purine Intake, for example dried beans ,peas and liver when broken down the purine’s in these foods produce uric acid. In which case excess amounts of uric acid from purine intake can create uric acid Stones. Hyperuricemia or gout can cause UA stones of a uric acid build up. A patient with a high purine diet has increased plasma uric acid levels which create urate crystals that deposit in joints causing gout. There can be two causes for gout the first being under excretion of uric acid which is

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