Low-protein diet and xanthine-metabolising enzymes in adriamycin nephrosis. 1990

F Ginevri, and G M Ghiggeri, and R Oleggini, and G Barbano, and R Bertelli, and G Candiano, and F Perfumo, and R Gusmano
Department of Nephrology, G. Gaslini Institute of Genoa, Italy.

Proteinuria and renal xanthine metabolising enzymes, xanthine oxidase and xanthine dehydrogenase, were evaluated in Adriamycin-treated rats fed standard (21% casein) and low-protein (6% casein) diets. In rats fed a standard diet Adriamycin was associated with increased activities in the kidney of xanthine oxidase and xanthine dehydrogenase and induced massive proteinuria. The pharmacological block of both enzymes by allopurinol and tungsten block of both enzymes by allopurinol and tungsten reduced proteinuria to one-third of the original levels. Rats fed a low-protein diet presented decreased levels of renal xanthine oxidase and xanthine dehydrogenase and were only slightly proteinuric. Finally, rats shifted from a low-protein diet to a normal one developed massive proteinuria in spite of normal or slightly decreased levels of renal xanthine oxidase and xanthine dehydrogenase. We conclude that a low-protein diet is effective in decreasing the levels of xanthine metabolising enzymes that are in part responsible for the renal damage due to Adriamycin. This is not however the unique mechanism by which the low-protein diet protects against the development of proteinuria in Adriamycin nephrosis; other factors must also be hypothesised.

UI MeSH Term Description Entries
D008297 Male Males
D009401 Nephrosis Pathological processes of the KIDNEY without inflammatory or neoplastic components. Nephrosis may be a primary disorder or secondary complication of other diseases. It is characterized by the NEPHROTIC SYNDROME indicating the presence of PROTEINURIA and HYPOALBUMINEMIA with accompanying EDEMA. Nephroses
D011507 Proteinuria The presence of proteins in the urine, an indicator of KIDNEY DISEASES. Proteinurias
D011919 Rats, Inbred Strains Genetically identical individuals developed from brother and sister matings which have been carried out for twenty or more generations or by parent x offspring matings carried out with certain restrictions. This also includes animals with a long history of closed colony breeding. August Rats,Inbred Rat Strains,Inbred Strain of Rat,Inbred Strain of Rats,Inbred Strains of Rats,Rat, Inbred Strain,August Rat,Inbred Rat Strain,Inbred Strain Rat,Inbred Strain Rats,Inbred Strains Rat,Inbred Strains Rats,Rat Inbred Strain,Rat Inbred Strains,Rat Strain, Inbred,Rat Strains, Inbred,Rat, August,Rat, Inbred Strains,Rats Inbred Strain,Rats Inbred Strains,Rats, August,Rats, Inbred Strain,Strain Rat, Inbred,Strain Rats, Inbred,Strain, Inbred Rat,Strains, Inbred Rat
D004044 Dietary Proteins Proteins obtained from foods. They are the main source of the ESSENTIAL AMINO ACIDS. Proteins, Dietary,Dietary Protein,Protein, Dietary
D004195 Disease Models, Animal Naturally-occurring or experimentally-induced animal diseases with pathological processes analogous to human diseases. Animal Disease Model,Animal Disease Models,Disease Model, Animal
D004317 Doxorubicin Antineoplastic antibiotic obtained from Streptomyces peucetius. It is a hydroxy derivative of DAUNORUBICIN. Adriamycin,Adriablastin,Adriablastine,Adriblastin,Adriblastina,Adriblastine,Adrimedac,DOXO-cell,Doxolem,Doxorubicin Hexal,Doxorubicin Hydrochloride,Doxorubicin NC,Doxorubicina Ferrer Farm,Doxorubicina Funk,Doxorubicina Tedec,Doxorubicine Baxter,Doxotec,Farmiblastina,Myocet,Onkodox,Ribodoxo,Rubex,Urokit Doxo-cell,DOXO cell,Hydrochloride, Doxorubicin,Urokit Doxo cell
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
D014968 Xanthine Dehydrogenase An enzyme that catalyzes the oxidation of XANTHINE in the presence of NAD+ to form URIC ACID and NADH. It acts also on a variety of other purines and aldehydes. Purine Hydroxylase I,Xanthine Oxidoreductase,Dehydrogenase, Xanthine,Oxidoreductase, Xanthine
D014969 Xanthine Oxidase An iron-molybdenum flavoprotein containing FLAVIN-ADENINE DINUCLEOTIDE that oxidizes hypoxanthine, some other purines and pterins, and aldehydes. Deficiency of the enzyme, an autosomal recessive trait, causes xanthinuria. Hypoxanthine Oxidase,Hypoxanthine Dehydrogenase,Hypoxanthine-Xanthine Oxidase,Purine-Xanthine Oxidase,Dehydrogenase, Hypoxanthine,Hypoxanthine Xanthine Oxidase,Oxidase, Hypoxanthine,Oxidase, Hypoxanthine-Xanthine,Oxidase, Purine-Xanthine,Oxidase, Xanthine,Purine Xanthine Oxidase

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