Effect of short-term swimming stress and diazepam on 3,4-dihydroxyphenylacetic acid (DOPAC) and 5-hydroxyindoleacetic acid (5-HIAA) levels in the caudate nucleus: an in vivo voltammetric study.
The effects of swimming stress on dopaminergic and serotonergic neurons were studied by an in vivo voltammetry technique. 3,4-Dihydroxyphenylacetic acid (DOPAC) and 5-hydroxyindoleacetic acid (5-HIAA) levels in rat striatum were measured by differential pulse voltammetry with an electrochemically treated carbon fiber electrode. Exposure to swimming stress for 1 to 10 min to the animal increased the DOPAC and 5-HIAA peaks, which depended on the length of stress. Pretreatment of the rats with diazepam (10 mg/kg, i.p.) prevented completely the stress-induced increase in DOPAC levels but only partially reduced the increase in 5-HIAA levels.
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M
Ikeda
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Nagatsu
D015102:3,4-Dihydroxyphenylacetic Acid / Q000378:metabolism*; D000818:Animals; D002421:Caudate Nucleus / Q000378:metabolism*; D003975:Diazepam / Q000494:pharmacology*; D006897:Hydroxyindoleacetic Acid / Q000378:metabolism*; D008297:Male; D010648:Phenylacetates / Q000378:metabolism*; D051381:Rats; D011919:Rats, Inbred Strains; D013315:Stress, Psychological / Q000378:metabolism*; D013550:Swimming
D010648:Phenylacetates; D015102:3,4-Dihydroxyphenylacetic Acid; D006897:Hydroxyindoleacetic Acid; D003975:Diazepam