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Nephrotoxicity of sodium dichromate depending on the route of administration.

Abstract
A comparison of the effects of intraperitoneal and subcutaneous routes of administration of sodium dichromate on nephrotoxicity in rats was studied. Dichromate when injected subcutaneously (SC group) produced a higher degree of nephrotoxicity than when administered intraperitoneally (IP group). It caused severe progressive proteinuria followed by polyuria and glucosuria, reaching maximum levels at 3 days after treatment in the SC group, whereas it produced mild proteinuria without glucosuria in the IP group. The dose-dependent increases in blood urea nitrogen (BUN) and creatinine concentrations, shown in the SC group, were not observed in the IP group. However, between the two groups, there were no great differences in either the urinary excretion rate of chromium or the electrophoretic patterns of urinary protein in the day 1 urine specimens. Pretreatment of phenobarbital (PB) had no remarkable effect on the dichromate-induced nephrotoxicity. In contrast, it potentiated dichromate-induced hepatotoxicity, the indices of which were the elevation in serum alanine aminotransferase (ALT) activity and hepatic lipid peroxide formation. These results suggest that the dependence of dichromate-induced nephrotoxicity on the route of administration is related to the chemical forms of chromium reaching the kidney, and the necrotizing property of dichromate results from its metabolic fate in vivo.
AuthorsE Kim, K J Na
JournalArchives of toxicology (Arch Toxicol) Vol. 65 Issue 7 Pg. 537-41 ( 1991) ISSN: 0340-5761 [Print] GERMANY
PMID1781735 (Publication Type: Comparative Study, Journal Article)
Chemical References
  • Chromates
  • Chromium
  • Creatinine
  • sodium bichromate
  • Alanine Transaminase
  • Phenobarbital
Topics
  • Alanine Transaminase (blood)
  • Animals
  • Biotransformation
  • Blood Urea Nitrogen
  • Chromates (pharmacokinetics, toxicity)
  • Chromium (urine)
  • Creatinine (blood)
  • Dose-Response Relationship, Drug
  • Drug Administration Routes
  • Kidney Diseases (chemically induced, metabolism)
  • Liver (metabolism)
  • Male
  • Phenobarbital (therapeutic use)
  • Rats
  • Rats, Inbred Strains
  • Tissue Distribution

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