Plasma melatonin during desmethylimipramine treatment: evidence for changes in noradrenergic transmission.
Open accessAbstract
Plasma melatonin was used to determine overall beta‐adrenergic transmission through pineal neuro‐effector junctions during desmethylimipramine (DMI) treatment in 10 normal subjects. Changes in plasma melatonin indicated that an initial increase in noradrenaline (NA) transmission produced by DMI was counteracted by adaptive changes which restored transmission to normal by the third week of treatment. A 'rebound' increase in NA transmission was seen on DMI withdrawal. The results suggest that the adaptive changes which occur in NA synapses during DMI treatment do not, as has been proposed, decrease NA transmission below normal levels, but instead restore homeostasis in the presence of the drug.
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Previous literature has suggested that neuro-adaptive changes might represent homoeostatic mechanisms by which the brain regulates neurotransmission in response to the drug.
“Previous literature has suggested that neuro-adaptive changes might represent homoeostatic mechanisms by which the brain regulates neurotransmission in response to the drug [46, 47].”
From Chronic escitalopram in healthy volunteers has specific effects on reinforcement sensitivity: a double-blind, placebo-controlled semi-randomised study (2023) · cites this paper as [46]
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- Authors
- Cowen, P., Green, A., Grahame‐Smith, D., & Braddock, L.
- Venue
- British Journal of Clinical Pharmacology
- Publisher
- Wiley
- Published
- 1985-06
- Volume
- 19
- Issue
- 6
- Pages
- 799-805
- ISSN
- 0306-5251 (ISSN-L)
- 1365-2125
- PMC
- PMC1463888
- OpenAlex
- W1963836596
- Cited by
- 53
- References
- 0
- Citations by year
- 2023: 1 · 2017: 2 · 2013: 1 · 2012: 1
- FWCI
- 3.94
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- British Journal of Clinical Pharmacology (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
- Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
- Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
- Keywords
- plasma melatonin, desmethylimipramine, pineal gland, drug withdrawal, rebound, homeostasis, tricyclic antidepressants
- MeSH terms
- Adult, Desipramine, Humans, Male, Melatonin, Synaptic Transmission, Norepinephrine
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