Elsevier

Life Sciences

Volume 23, Issue 22, 27 November 1978, Pages 2219-2224
Life Sciences

Stress-induced increase in 3,4-dihydroxyphenylacetic acid (DOPAC) levels in the cerebral cortex and in n. accumbens: Reversal by diazepam

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Abstract

The effect of electrical foot shock stress on dopamine and DOPAC levels was examined in the frontal cortex, nucleus accumbens, striatum, substantia nigra and medial basal hypothalamus of rats. DA content did not change after stress in any of the structures analyzed except in the substantia nigra in which DA level decreased by about 35% following 20, 60 or 180 min of stress. DOPAC level did not change in the striatum, medial basal hypothalamus and substantia nigra, but increased in the frontal cortex and in n. accumbens by about 75% and 40%, respectively. Pretreatment with diazepam, but not with pentobarbital, prevented stress-induced increased in DOPAC levels.

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