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  • Title: Evidence that diazepam elicits alterations on rat renal function.
    Author: Monasterolo LA, Elías MM.
    Journal: Res Commun Chem Pathol Pharmacol; 1993 Jul; 81(1):68-76. PubMed ID: 8210691.
    Abstract:
    The effects of diazepam on rat renal function were investigated by means of clearance techniques in conscious animals. Different intravenous doses of diazepam were tested: 0.1, 0.3 and 10 mg/Kg body weight A marked increase in fractional water, sodium and potassium excretion was found in every group studied. This alteration was associated with a urine-to-plasma osmolality ratio diminution. On the other hand, no modifications in glomerular filtration rate or p-aminohippuric acid clearance were observed. The reabsorption of water in collecting tubule in diazepam treated rats was decreased as compared with control rats. To assess diazepam-effects on collecting tubule response to vasopressin, the effects of desmopressin on concentrating ability in control and diazepam-treated rats were tested. Desmopressin-treatment promoted a significantly lower free water reabsorption in diazepam-treated group as referred to control rats. This results indicate that diazepam may promote impairments on renal tubular ions reabsorption and that it modifies the collecting tubule response to desmopressin.
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