Effect of sodium valproate on the open-field behavior of rats
Braz. j. med. biol. res
;
25(3): 281-7, 1992. tab
Article
in English
| LILACS
| ID: lil-109029
ABSTRACT
It has been reported that sodium valproate induces a morphine-like withdrawal syndrome in rats. The effects of acute or chronic treatment with sodium valproate on rat behavior was studied in the open-field test. Acute sodium valproate (320 mg/kg, intraperitoneally) decreases the freuqncy of, and the time spent in grooming even when not modifying locomotion, rearing or defecation (N=15), either 15 or 60 min after an acute treatment. This effect was not modified (n+10) by concomitant administration of morphine (2 mg/kg) or naloxone (1 mg/kg). Interruption of prolonged (30 days) valproate treatment with increasing doses of 40 to 320 mg/kg, by gavage, twice daily (N=10) did not modify raty behavior in the open-field, from the first to the fourtheenth day of th test. We conclude that the decreased novely-induced grooming does not depend on the opioid system and may be related to anti-anxiety effect of valproate
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Index:
LILACS (Americas)
Main subject:
Syndrome
/
Behavior, Animal
/
Valproic Acid
/
Gamma-Aminobutyric Acid
/
Morphine
Limits:
Animals
Language:
English
Journal:
Braz. j. med. biol. res
Journal subject:
Biology
/
Medicine
Year:
1992
Type:
Article
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