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ICRF-187 (dexrazoxan) protects from adriamycin-induced nephrotic syndrome in rats. 1998

T Zima, and V Tesar, and J Crkovská, and A Stejskalová, and J Pláteník, and J Temínová, and K Nemecek, and M Janebová, and S Stípek
1st Institute of Medical Chemistry and Biochemistry, First Faculty of Medicine, Charles University, Prague, Czech Republic.

BACKGROUND Reactive oxygen species produced during metabolism of adriamycin are purported to play an important role in the pathogenesis of experimental adriamycin nephropathy in rats. ICRF-187 (dexrazoxan, Cardioxan), an iron chelator, has been shown to inhibit adriamycin-induced formation of hydroxyl radical and to decrease adriamycin cardiotoxicity in oncological patients. The aim of our study was to assess the putative protective role of ICRF-187 in adriamycin nephropathy by evaluating the possible participation of free radicals in its pathogenesis. METHODS We examined five experimental groups. Group A, received a single dose of adriamycin (5 mg/kg bw i.v.), group CA was given a single dose of ICRF-187 (100 mg/kg bw i.v.) before adriamycin administration, group CCA received a single dose of ICRF-187 (100 mg/kg bw i.v.) before adriamycin administration followed by three weekly intraperitoneal injections (100 mg/kg bw) ICRF-187. Group CC received one dose of ICRF-187 (100 mg/kg bw i.v.) followed by three weekly intraperitoneal injections of ICRF-187, and group N served as control receiving saline. Common biochemical parameters, malondialdehyde (MDA) and antioxidant enzymes (glutathione peroxidase--GPx and superoxide dismutase--SOD) in blood and kidney homogenates were measure and histology of the kidney was studied after the rats were sacrificed. RESULTS Full-blown nephrotic syndrome developed after 3 weeks only in A rats. Nephrotic syndrome was completely prevented in all ICRF-187 treated rats (CA, CCA). Proteinuria was significantly increased in A rats (108.2 + 48.4 mg/l of glomerular filtrate) compared with CA (12.4 + 6.8 mg/l, P < 0.0001) and with N (6.1 + 3.5 mg/l, P < 0.0001). Total MDA in erythrocytes was significantly increased only in A rats (1.7 + 0.3 micromol/l) and was completely normalized by ICRF-187 in CA (1.1 + 0.2 micromol/l, P < 0.001). Total TBARS and MDA in kidney homogenates were significantly elevated in groups with repeated administration of ICRF-187 (CC and CCA rats) compared to N, CA, A groups. Activity of GPx and SOD in kidney homogenate and in erythrocytes was not significantly increased by ICRF-187 in adriamycin treated rats. Histologic changes in A rats resembled minimal change nephropathy with fusion of foot processes and hyaline casts in tubules. There was only minimal mesangial proliferation and perivascular mast cell infiltrates in all groups of ICRF-187-treated rats. CONCLUSIONS We conclude that ICRF-187, probably by chelation iron, completely protected rats from adriamycin-induced nephrotic syndrome. It supports the role of iron-mediated reactive oxygen species in the development of this type of glomerular injury. However, repeated administration of ICRF-187 alone is able to increase parameters of oxidative stress in the kidney.

UI MeSH Term Description Entries
D007668 Kidney Body organ that filters blood for the secretion of URINE and that regulates ion concentrations. Kidneys
D008315 Malondialdehyde The dialdehyde of malonic acid. Malonaldehyde,Propanedial,Malonylaldehyde,Malonyldialdehyde,Sodium Malondialdehyde,Malondialdehyde, Sodium
D009404 Nephrotic Syndrome A condition characterized by severe PROTEINURIA, greater than 3.5 g/day in an average adult. The substantial loss of protein in the urine results in complications such as HYPOPROTEINEMIA; generalized EDEMA; HYPERTENSION; and HYPERLIPIDEMIAS. Diseases associated with nephrotic syndrome generally cause chronic kidney dysfunction. Childhood Idiopathic Nephrotic Syndrome,Frequently Relapsing Nephrotic Syndrome,Multi-Drug Resistant Nephrotic Syndrome,Pediatric Idiopathic Nephrotic Syndrome,Steroid-Dependent Nephrotic Syndrome,Steroid-Resistant Nephrotic Syndrome,Steroid-Sensitive Nephrotic Syndrome,Multi Drug Resistant Nephrotic Syndrome,Nephrotic Syndrome, Steroid-Dependent,Nephrotic Syndrome, Steroid-Resistant,Nephrotic Syndrome, Steroid-Sensitive,Nephrotic Syndromes,Steroid Dependent Nephrotic Syndrome,Steroid Resistant Nephrotic Syndrome,Steroid Sensitive Nephrotic Syndrome,Steroid-Dependent Nephrotic Syndromes,Steroid-Resistant Nephrotic Syndromes,Steroid-Sensitive Nephrotic Syndromes,Syndrome, Nephrotic,Syndrome, Steroid-Sensitive Nephrotic
D011929 Razoxane An antimitotic agent with immunosuppressive properties. ICRF-159,ICRF-186,NSC-129943,Razoxane Mesylate, (R)-Isomer,Razoxane, (R)-Isomer,Razoxin,ICRF 159,ICRF 186,ICRF159,ICRF186,NSC 129943,NSC129943
D002614 Chelating Agents Chemicals that bind to and remove ions from solutions. Many chelating agents function through the formation of COORDINATION COMPLEXES with METALS. Chelating Agent,Chelator,Complexons,Metal Antagonists,Chelators,Metal Chelating Agents,Agent, Chelating,Agents, Chelating,Agents, Metal Chelating,Antagonists, Metal,Chelating Agents, Metal
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
D004912 Erythrocytes Red blood cells. Mature erythrocytes are non-nucleated, biconcave disks containing HEMOGLOBIN whose function is to transport OXYGEN. Blood Cells, Red,Blood Corpuscles, Red,Red Blood Cells,Red Blood Corpuscles,Blood Cell, Red,Blood Corpuscle, Red,Erythrocyte,Red Blood Cell,Red Blood Corpuscle
D005260 Female Females
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
D013482 Superoxide Dismutase An oxidoreductase that catalyzes the reaction between SUPEROXIDES and hydrogen to yield molecular oxygen and hydrogen peroxide. The enzyme protects the cell against dangerous levels of superoxide. Hemocuprein,Ag-Zn Superoxide Dismutase,Cobalt Superoxide Dismutase,Cu-Superoxide Dismutase,Erythrocuprein,Fe-Superoxide Dismutase,Fe-Zn Superoxide Dismutase,Iron Superoxide Dismutase,Manganese Superoxide Dismutase,Mn-SOD,Mn-Superoxide Dismutase,Ag Zn Superoxide Dismutase,Cu Superoxide Dismutase,Dismutase, Ag-Zn Superoxide,Dismutase, Cobalt Superoxide,Dismutase, Cu-Superoxide,Dismutase, Fe-Superoxide,Dismutase, Fe-Zn Superoxide,Dismutase, Iron Superoxide,Dismutase, Manganese Superoxide,Dismutase, Mn-Superoxide,Dismutase, Superoxide,Fe Superoxide Dismutase,Fe Zn Superoxide Dismutase,Mn SOD,Mn Superoxide Dismutase,Superoxide Dismutase, Ag-Zn,Superoxide Dismutase, Cobalt,Superoxide Dismutase, Fe-Zn,Superoxide Dismutase, Iron,Superoxide Dismutase, Manganese

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