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  • Title: Prostaglandin synthesis inhibition and monoamine metabolites in the rat brain.
    Author: Abdel-Halim MS, Sjöquist B, Anggård E.
    Journal: Prostaglandins; 1979 Dec; 18(6):837-45. PubMed ID: 94946.
    Abstract:
    The effect of indomethacin 3 mg/kg on levels of homovanillic acid (HVA), 4-hydroxy-3-methoxy phenyl ethylene glycol (HMPG) and 5-hydroxy indol acetic acid (5HIAA) was studied in rat striatum and olfactory tubercle with and without pretreatment with morphine 10 mg/kg. Indomethacin caused a small decrease in resting levels of HVA in striatum but not in olfactory tubercle. No effects were seen on resting or morphine induced changes in the levels of these monoamine metabolites. Likewise indomethacin 20 mg/kg failed to alter the elevation of HVA induced by chlorpromazine 15 mg/kg or the decrease of HVA induced by apomorphine (1--10 mg/kg) in the rat striatum. Our results do not support a major role for endogenous prostaglandins in the modulation of monoamine neurotransmission in the rat brain.
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