| 11. | The Dutch scientist Antonie van Leeuwenhoek first described the microscopic appearance of urate crystals in 1679.
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| 12. | It is a recombinant version of urate oxidase, an enzyme that metabolizes uric acid to allantoin.
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| 13. | Urate oxidase is known to be present in many mammals but does not naturally occur in humans.
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| 14. | Urate stones can be dissolved using a diet with reduced purines that alkalinizes and dilutes the urine.
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| 15. | Greater than 90 % of urate excreted by the kidneys is derived from the process of secretion.
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| 16. | One treatment for gout in the 19th century was administration of lithium salts; lithium urate is more soluble.
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| 17. | Elevated levels of uric acid may also lead to crystals precipitating in the kidneys, resulting in urate nephropathy.
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| 18. | Earlier trials had suggested those with the highest serum urate levels had lower progression of Parkinson's symptoms.
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| 19. | During periods of adequate rainfall, they drink copiously from any pools they find, and eliminate solid urates.
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| 20. | It results in high blood levels of sulfite and urate, in much the same way as molybdenum cofactor deficiency.
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