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  • Title: Ethanol induced differences in medial prefrontal cortex dopamine asymmetry and in nucleus accumbens dopamine metabolism in left- and right-turning rats.
    Author: Nielsen DM, Crosley KJ, Keller RW, Glick SD, Carlson JN.
    Journal: Brain Res; 1999 Mar 27; 823(1-2):207-12. PubMed ID: 10095029.
    Abstract:
    Ethanol (0.5 g/kg i.p.) 15 min prior to sacrifice increased homovanillic acid (HVA) levels in the left medial prefrontal cortex (mPFC) of left-turning rats and in the right mPFC of right-turning rats. In the nucleus accumbens (NAS), ethanol decreased dopamine (DA), 3,4-dihydroxyphenylacetic acid (DOPAC), and HVA levels in rats that exhibited low levels of locomotor activity but not in rats that exhibited high levels of locomotor activity. This laboratory has previously shown that rats exhibiting differences in turning and locomotor activity behavior display different preferences for ethanol. The present results suggest that ethanol-induced differences in mPFC and NAS DA activity may be related to individual differences in the susceptibility to abuse ethanol.
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