1990
DOI: 10.1016/0014-5793(90)81334-k
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Lack of conversion of xanthine dehydrogenase to xanthine oxidase during warm renal ischemia

Abstract: Irreversible transformation of xanthine dehydrogenase (XDH) to xanthine oxidase (XO) during ischemia was determined measuring XDH and total enzyme activity in kidneys before and after 60 min of clamp of the renal pedicle. Tissue levels of adenine nucleotides, xanthine and hypoxanthine were used as indicators of ischemia. After 60 min of clamping, ATP levels decreased by 72% with respect to controls whereas xanthine and hypoxanthine progressively reached tissue concentrations of 732+49 and 979+ 15 nmol-g tissue… Show more

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Cited by 8 publications
(1 citation statement)
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“…This is a key enzyme in the purine decomposition pathway that catalyzes the conversion of xanthine and hypoxanthine to uric acid (UA) [ 32 , 33 ]. During muscle contraction, the irreversible conversion of xanthine dehydrogenase (XDH) to its xanthine oxidase (XO) [ 34 , 35 ] plays an important role in producing ROS in ischemic conditions [ 36 , 37 ]. Allopurinol is an XO inhibitor and a UA-lowering agent commonly used in the treatment of gout [ 38 , 39 ].…”
Section: Chemical Drugsmentioning
confidence: 99%
“…This is a key enzyme in the purine decomposition pathway that catalyzes the conversion of xanthine and hypoxanthine to uric acid (UA) [ 32 , 33 ]. During muscle contraction, the irreversible conversion of xanthine dehydrogenase (XDH) to its xanthine oxidase (XO) [ 34 , 35 ] plays an important role in producing ROS in ischemic conditions [ 36 , 37 ]. Allopurinol is an XO inhibitor and a UA-lowering agent commonly used in the treatment of gout [ 38 , 39 ].…”
Section: Chemical Drugsmentioning
confidence: 99%