Abstract:
:Amidinotransferase (transamidinase, L-arginine: glycine amidinotransferase, EC 2.1.4.1) is an enzyme that catalyses the first step in creatine synthesis primarily in the kidney and pancreas. The kidney is also the primary target organ for the toxic effect of mercury. Therefore, we studied the effect of acute uremic syndrome on enzyme activity induced by mercury chloride. Because of the potential beneficial effect of bioflavonoids, we have investigated the effects of the bioflavonoid lespeflan on acute uremic syndrome and amidinotransferase activity. Male Spraque Dawley rats weighing about 200 g were used in this study. Acute renal failure was induced by intraperitoneally (i.p.) administration of mercury chloride in a dose of 3 mg/kg. One group of animals was given lespeflan (1.0 mL/kg) 1 hr before mercury chloride administration. Urea and creatinine levels in blood plasma were significantly elevated 48 hr after the induction of acute uremic syndrome (p< 0.001). Kidney transamidinase activity was decreased compared to the control group (p<0.001). Pretreatment by lespeflan potentiates the inhibitory effect of mercury chloride on enzyme activity. We discussed mechanisms of transamidinase inhibition and point thiol group of cysteine forming thiol-conjugates on enzyme inhibition both by mercury and lespeflan.
journal_name
Ren Failjournal_title
Renal failureauthors
Nikolic J,Sokolovic Ddoi
10.1081/jdi-200037149subject
Has Abstractpub_date
2004-11-01 00:00:00pages
607-11issue
6eissn
0886-022Xissn
1525-6049journal_volume
26pub_type
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