Cited by 129Medicinal Plant Extracts EffectsNeuroscience and Neuropharmacology ResearchNeurotransmitter Receptor Influence on Behavior

Anxiolytic-like effects of sinapic acid in mice

Yoon, Byung Hoon, Jung, Ji Wook, Lee, Jong-Ju, Cho, Young-Wuk, Jang, Choon-Gon, Jin, Changbae, Oh, Tae Hwan, Ryu, Jong Hoon·2007·Life Sciences

Abstract

Sinapic acid is a phenylpropanoid compound and is found in various herbal materials and high-bran cereals. With the exception of its antioxidant activities, the pharmacological properties of sinapic acid have been rarely reported. The purpose of this study was to characterize the putative anxiolytic-like properties of sinapic acid using an elevated plus-maze (EPM) and hole-board test. Control mice were orally treated with an equal volume of vehicle (10% Tween 80 solution), and positive control mice were treated with diazepam (1 mg/kg, i.p.). Sinapic acid (4 mg/kg, p.o.) significantly increased the percentages of time spent in the open arms of the EPM test (P<0.05). In the hole-board test, sinapic acid also significantly increased the number of head-dips at 4 mg/kg (P<0.05). In addition, the anxiolytic-like properties of sinapic acid examined in the EPM test were blocked by flumazenil or bicuculline, which are GABA(A) antagonists. Moreover, sinapic acid markedly potentiated GABA current in single cortical neurons in a dose-dependant manner, and reactive I(GABA) increased to 1.8 times at 1 muM of sinapic acid. These results suggested that sinapic acid is a prominent anxiolytic agent, and that its anxiolytic-like effects are mediated via GABA(A) receptors and potentiating Cl(-) currents.

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Crossref · 10.1016/j.lfs.2007.05.007

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Authors
Yoon, B. H., Jung, J. W., Lee, J.-J., Cho, Y.-W., Jang, C.-G., Jin, C., Oh, T. H., & Ryu, J. H.
Affiliations
  • Kyung Hee University (KR)
  • Daegu Haany University (KR)
  • Sungkyunkwan University (KR)
  • Korea Institute of Science and Technology (KR)
Corresponding author
Ryu, Jong Hoon
Venue
Life Sciences
Publisher
Elsevier BV
Published
2007-06
Volume
81
Issue
3
Pages
234-240
ISSN
0024-3205 (ISSN-L)
OpenAlex
W2047802797
Cited by
129
References
28
Citations by year
2026: 3 · 2025: 7 · 2024: 7 · 2023: 15 · 2022: 6 · 2021: 8 · 2020: 10 · 2019: 9 · 2018: 10 · 2017: 11 · 2016: 6 · 2015: 8 · 2014: 8 · 2013: 5 · 2012: 4
FWCI
8.18
Type
journal article
Language
en
Open access
closed
Locations
  • Life Sciences (publishedVersion)
  • PubMed (publishedVersion)
Funders
Ministry of Science and Technology, Taiwan
Topics
  • Health Sciences › Medicine › Complementary and alternative medicine › Medicinal Plant Extracts Effects
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
Keywords
sinapic acid, anxiolytic effects, GABAA receptor, chloride currents, phenylpropanoids, elevated plus maze, hole board test, flumazenil, bicuculline, diazepam, cortical neurons, anxiety
MeSH terms
Animals, Anxiety, Bicuculline, Cerebral Cortex, Coumaric Acids, Diazepam, Electrophysiology, Postural Balance, Flumazenil, gamma-Aminobutyric Acid, Male, Mice, Inbred ICR, Motor Activity, Muscle Relaxation, Muscle, Smooth, Neurons, Piperazines, Pyridines, Serotonin Antagonists, Anti-Anxiety Agents, Chloride Channels, Neurotransmitter Agents, GABA Antagonists, GABA Modulators, Mice

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