The dopaminergic mesencephalic projections to the hippocampal formation in the rat
Abstract
1. The dopaminergic mesencephalic neurons projecting to the hippocampal formation are distributed in three cell groups: A8 region in the retrorubral field, A9 region in the substantia nigra and A10 region in the ventral tegmental area. 2. Anterograde and retrograde tract-tracing techniques combined with immunohistochemical procedures indicate a topographical organization of mesencephalic dopaminergic projections towards the hippocampal formation. 3. Electrophysiological evidence suggest that dopaminergic mesencephalic neurons could have a regulatory role in suppressing hippocampal excitability. 4. The functional significance of the mesohippocampal dopaminergic system is largely unknown, although it was suggested that this projection could have a role in methamphetamine-produced hypermotility and in modulation of memory processes.
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These data support previous evidence arising from retrograde tracers injected in the hippocampus that indicated dopaminergic innervation of the hippocampus from the VTA/SNc.
“These data support previous evidence arising from retrograde tracers injected in the hippocampus that indicated dopaminergic innervation of the hippocampus from the VTA/SNc (Broussard et al., 2012; Gasbarri et al., 1997; Gasbarri et al., 1994b).”
From Dopamine regulates aversive contextual learning and associated in vivo synaptic plasticity in the Hippocampus (2016) · cites this paper as Gasbarri et al., 1997
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References 99 · Cited by 285
- Authors
- Gasbarri, A., Sulli, A., & Packard, M. G.
- Affiliations
- University of L'Aquila (IT)
- LSU New Orleans (US)
- Corresponding author
- Gasbarri, Antonella
- ORCID
- Gasbarri, Antonella
- Venue
- Progress in Neuro-Psychopharmacology and Biological Psychiatry
- Publisher
- Elsevier BV
- Published
- 1997-01
- Volume
- 21
- Issue
- 1
- Pages
- 1-22
- ISSN
- 0278-5846 (ISSN-L)
- OpenAlex
- W2064612160
- Cited by
- 285
- References
- 99
- Citations by year
- 2026: 5 · 2025: 6 · 2024: 17 · 2023: 10 · 2022: 6 · 2021: 9 · 2020: 10 · 2019: 11 · 2018: 20 · 2017: 13 · 2016: 14 · 2015: 12 · 2014: 22 · 2013: 11 · 2012: 24
- FWCI
- 0.32
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Progress in Neuro-Psychopharmacology and Biological Psychiatry (publishedVersion)
- PubMed (publishedVersion)
- Archivio Istituzionale della Ricerca - Università degli Studi dell Aquila (submittedVersion)
- Topics
- Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
- Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
- Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
- Keywords
- dopaminergic neurons, hippocampal formation, substantia nigra, ventral tegmental area, retrorubral field, hippocampal excitability, memory modulation, rats
- MeSH terms
- Animals, Dopamine, Hippocampus, Mesencephalon, Rats
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