Effects of vanadium on activity and learning in rats

Author(s): Colomina, M. T., Domingo, J. L.

Journal/Book: Physiol Behav. 1998; 63: The Boulevard, Langford Lane, Kidlington, Oxford, England OX5 1GB. Pergamon-Elsevier Science Ltd. 345-350.

Abstract: The effects of vanadate administration on activity and learning were assessed in rats. Four groups of adult male rats were given by gavage 0, 4.1, 8.2, and 16.4 mg/kg/day of sodium metavanadate for eight consecutive weeks. Three weeks after the cessation of the treatment, general motor activity of all animals was measured in an open-field. Rats were also rested for two-way shock avoidance learning in an automatic reflex conditioner. At the end of the testing period, rats were killed and vanadium concentration was determined in a number of tissues. Vanadium exposure caused an observable but not significant effect on body weight gain, while a persistent presence of vanadium was observed in all tissues measured. The results of the behavioral testing show that oral vanadate administration resulted in significant reductions in both general activity and learning.

Note: Article Domingo JL, Univ Rovira & Virgili, Sch Med, Toxicol & Environm Hlth Lab, C St Llorenc 21, E-43201 Reus, SPAIN

Keyword(s): metavanadate; rats; brain; motor activity; learning; STREPTOZOTOCIN-DIABETIC RATS; LONG-EVANS RAT; CHELATING-AGENTS; ALUMINUM INGESTION; ORAL VANADYL; TOXICITY; BEHAVIOR; AVOIDANCE; EXCRETION; MELLITUS

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