Cited by 82Neuropeptides and Animal PhysiologyNeuroscience and Neuropharmacology ResearchNeurotransmitter Receptor Influence on Behavior

Cholecystokinin and GABA interaction in the dorsal hippocampus of rats in the elevated plus-maze test of anxiety

Rezayat, Mehdi, Roohbakhsh, Ali, Zarrindast, Mohammad-Reza, Massoudi, Roohollah, Djahanguiri, Bijan·2005·Physiology & Behavior

Abstract

In the present study, we have investigated the effects and interaction of CCK and GABAergic systems in the dorsal hippocampus of rats using the elevated plus-maze test of anxiety. Bilateral injection of different doses of CCK(8s) (0.01, 0.05 and 0.1 microg/rat) into the dorsal hippocampus (intra-CA1) decreased percentage of open arm time (%OAT) and open arm entries (%OAE) that are representative of anxiogenic-like behavior. The bilateral injection of three doses of LY225910, a selective CCK2 receptor antagonist (0.01, 0.1 and 0.5 microg/rat) produced significant anxiolytic behavior. Although muscimol (GABA(A+)) (0.1, 0.5 and 1 microg/rat, intra-CA1) produced dose dependent increase in %OAT and a slight increase in %OAE, bicuculline (GABA(A-)), (1, 2 and 4 microg/rat, intra-CA1) failed to change the anxiety profile. Both muscimol (0.1 microg/rat) and bicuculline (1 microg/rat), when co-administered with LY225910, reversed the effect of latter drug on anxiety but when co-administered with CCK8s (0.05 microg/rat) showed no effect on anxiety profile. In conclusion, it seems that both CCK and GABAergic systems not only play a part in the modulation of anxiety in the dorsal hippocampus of rats but also have demonstrated a complex interaction as well.

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Crossref · 10.1016/j.physbeh.2005.03.002

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  • Both human and rodents studies indicate a positive correlation of CCK levels and increased anxiety-like behavior.

    “Both human and rodents studies indicate a positive correlation of CCK levels and increased anxiety-like behavior [273-275].”

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Authors
Rezayat, M., Roohbakhsh, A., Zarrindast, M.-R., Massoudi, R., & Djahanguiri, B.
Affiliations
Tehran University of Medical Sciences (IR)
Venue
Physiology & Behavior
Publisher
Elsevier BV
Published
2005-04
Volume
84
Issue
5
Pages
775-782
ISSN
0031-9384 (ISSN-L)
OpenAlex
W2057855185
Cited by
82
References
49
Citations by year
2025: 3 · 2024: 3 · 2023: 1 · 2022: 4 · 2021: 2 · 2020: 4 · 2019: 4 · 2018: 2 · 2017: 8 · 2016: 3 · 2015: 5 · 2014: 5 · 2013: 5 · 2012: 5
FWCI
1.33
Type
journal article
Language
en
Open access
closed
Locations
  • Physiology & Behavior (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuropeptides and Animal Physiology
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
Keywords
cholecystokinin, GABAergic system, dorsal hippocampus, anxiety, CCK-8, muscimol, bicuculline, anxiolytic effects, anxiogenic behavior, hippocampal CA1, drug interactions
MeSH terms
Animals, Anxiety, Bicuculline, Cholecystokinin, Dose-Response Relationship, Drug, gamma-Aminobutyric Acid, Hippocampus, Male, Microinjections, Quinazolines, Receptors, Cholecystokinin, Stereotaxic Techniques, Rats, Wistar, GABA Antagonists, Receptor, Cholecystokinin B, Rats, Quinazolinones

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