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Hypothalamic Adrenaline Synthesis After Stimulation of the Medial Forebrain Bundle

Overview
Journal Br J Pharmacol
Publisher Wiley
Specialty Pharmacology
Date 1977 Sep 1
PMID 303134
Citations 1
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Abstract

1 The problem of whether locally released noradrenaline can be methylated to adrenaline in the hypothalamus has been investigated. 2 During stimulation of the medial forebrain bundle (MFB) the hypothalamic adrenaline content increased somewhat, but the increase was not statistically significant (13%, mean of 10 experiments). 3 After inhibition of the activity of monoamine oxidase and catechol-O-methyltransferase this increase was much larger (80%, mean of 9 experiments). 4 Adrenalectomy did not prevent the rise in hypothalamic adrenaline after stimulation of the MFB. These results suggest that noradrenaline released during activity of noradrenergic hypothalamic structures may be methylated to adrenaline in the hypothalamus.

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References
1.
TORDA C . Effects of recurrent postnatal stresses on hypothalamic concentrations of norepinephrine. Biol Neonate. 1976; 29(3-4):142-7. DOI: 10.1159/000240858. View

2.
Brown S, Fial R . Intracranial alpha-methyl-P-tyrosine and response for electrical brain stimulation. Pharmacol Biochem Behav. 1975; 3(4):641-6. DOI: 10.1016/0091-3057(75)90185-9. View

3.
Pendleton R, Gessner G . Evidence that dopamine is not a substrate for adrenal phenylethanolamine N-methyltransferase. Mol Pharmacol. 1975; 11(2):232-5. View

4.
Pohorecky L, Zigmond M, Karten H, Wurtman R . Enzymatic conversion of norepinephrine to epinephrine by the brain. J Pharmacol Exp Ther. 1969; 165(2):190-5. View

5.
Ciaranello R, Barchas R, Byers G, Stemmle D, Barchas J . Enzymatic synthesis of adrenaline in mammalian brain. Nature. 1969; 221(5178):368-9. DOI: 10.1038/221368a0. View