Urate metabolism in a mongrel dog. 1980

P A Simkin

(1) We have performed short-term turnover studies in a trained mongrel dog, and found remarkably linear turnover curves for both urate and its principle metabolic product, allantoin. (2) Infusions of Pyrazinamide, Probenecid, and Sodium Salicylate had no apparent effect on urate metabolism. (3) The "uricolytic index" for endogenous urate is consistenely lower than that of infused, isotopic urate. This finding suggests renal synthesis and direct excretion of unlabelled urate. (4) The renal clearance of labelled urate is higher than that of endogenous urate despite apparent renal synthesis. This finding suggests that urate may exist in more than one molecular form.

UI MeSH Term Description Entries
D011339 Probenecid The prototypical uricosuric agent. It inhibits the renal excretion of organic anions and reduces tubular reabsorption of urate. Probenecid has also been used to treat patients with renal impairment, and, because it reduces the renal tubular excretion of other drugs, has been used as an adjunct to antibacterial therapy. Benecid,Benemid,Benuryl,Pro-Cid,Probecid,Probenecid Weimer
D011718 Pyrazinamide A pyrazine that is used therapeutically as an antitubercular agent. Tisamid
D002250 Carbon Radioisotopes Unstable isotopes of carbon that decay or disintegrate emitting radiation. C atoms with atomic weights 10, 11, and 14-16 are radioactive carbon isotopes. Radioisotopes, Carbon
D004285 Dogs The domestic dog, Canis familiaris, comprising about 400 breeds, of the carnivore family CANIDAE. They are worldwide in distribution and live in association with people. (Walker's Mammals of the World, 5th ed, p1065) Canis familiaris,Dog
D000481 Allantoin A urea hydantoin that is found in URINE and PLANTS and is used in dermatological preparations. Herpecin-L,Sebical,Woun'dres,Herpecin L,HerpecinL
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D012459 Salicylates The salts or esters of salicylic acids, or salicylate esters of an organic acid. Some of these have analgesic, antipyretic, and anti-inflammatory activities by inhibiting prostaglandin synthesis. Salicylate,Salicylic Acids,Acids, Salicylic
D014527 Uric Acid An oxidation product, via XANTHINE OXIDASE, of oxypurines such as XANTHINE and HYPOXANTHINE. It is the final oxidation product of purine catabolism in humans and primates, whereas in most other mammals URATE OXIDASE further oxidizes it to ALLANTOIN. 2,6,8-Trihydroxypurine,Ammonium Acid Urate,Monosodium Urate,Monosodium Urate Monohydrate,Potassium Urate,Sodium Acid Urate,Sodium Acid Urate Monohydrate,Sodium Urate,Sodium Urate Monohydrate,Trioxopurine,Urate,Acid Urate, Ammonium,Acid Urate, Sodium,Acid, Uric,Monohydrate, Monosodium Urate,Monohydrate, Sodium Urate,Urate Monohydrate, Monosodium,Urate Monohydrate, Sodium,Urate, Ammonium Acid,Urate, Monosodium,Urate, Potassium,Urate, Sodium,Urate, Sodium Acid

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