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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2004-10-6
pubmed:abstractText
The kidney is the main site of guanidinoacetic acid synthesis and excretion. The aim of this study was to examine whether urinary guanidinoacetic acid is a sensitive indicator for diagnosis of early-stage gentamicin nephrotoxicity. Early-stage renal injury was induced in rats by a single intravenous injection of 5, 10, or 30 mg/kg body weight gentamicin. Twenty-four hours after injection all rats were killed. Blood, urine and tissue guanidino compound concentrations were determined by high performance liquid chromatography. Glycine amidinotransferase activity in tissues was assayed according to the method of Pilsum. Urinary guanidinoacetic acid excretion was decreased in 5 mg/kg gentamicin-treated rats in comparison to that in control rats, whereas urine N-acetyl-beta-D-glucosaminidase activity and beta2-microglobulin were unchanged. Guanidinoacetic acid concentration and glycine amidinotransferase activity in the kidney were significantly decreased in 5, 10, and 30 mg/kg gentamicin-treated rats; the decreases were dose-dependent. These results suggest that the urine guanidinoacetic acid concentration is a more sensitive indicator of renal injury than conventional indicators such as urine N-acetyl-beta-D-glucosaminidase and beta2-microglobulin.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0886-022X
pubmed:author
pubmed:issnType
Print
pubmed:volume
26
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
339-44
pubmed:dateRevised
2008-5-21
pubmed:meshHeading
pubmed:year
2004
pubmed:articleTitle
Urinary guanidinoacetic acid excretion as an indicator of gentamicin nephrotoxicity in rats.
pubmed:affiliation
Urasoe General Hospital, Okinawa, Japan.
pubmed:publicationType
Journal Article