Insights & Discussion
Jujube seed extract has been found to primarily reduce anxiety by regulating the GABAergic and serotonergic synapse pathways, specifically modulating GABRA1, HTR1A, and HTR2A.
The research relied on a system biology method supported by Ultra Performance Liquid Chromatography Quadrupole Time of Flight Mass Spectrometry (UPLC-Q-TOF/MS) and Real-Time Quantitative Polymerase Chain Reaction (RT-qPCR). Initially, 35 phytochemicals were identified from the Jujube seed extract, which related to 71 anxiolytic targets. Further investigations, including protein-protein interaction, gene cluster, Gene Ontology, and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways analyses, were conducted to identify the anxiolytic mechanisms of the extract.
The results highlighted that the main anxiolytic mechanisms of the Jujube seed extract were linked to the regulation of serotonergic and GABAergic synapse pathways. The extract's impact on the mRNA expressions of multiple gamma-aminobutyric acid type A (GABA) and serotonin (5-HT) receptors subtypes was verified in human neuroblastoma cells. Surprisingly, the extract (250 μg/mL) not only amplified the mRNA level of GABRA1 and GABRA3 alongside HTR1A, HTR2A, and HTR2B in untreated cells but also suppressed the overexpressed mRNA of GABRA1, GABRA2, HTR1A, and HTR2A in stress-induced cells.
Discover Related Insights
Gan Mai Da Zao decoction has shown comparable anxiolytic effects to Diazepam and Buspirone in mice, possibly regulated by serotonin and gamma-aminobutyric acid receptors.
2019 Frontiers in Neuroscience GABA and 5-HT Systems Are Involved in the Anxiolytic Effect of Gan-Mai-Da-Zao Decoction Chen HS, Gu LJ, Yang YX, Guo JY
Animal Study Anxiety GABA GABA system
The mice were given the Gan-Mai-Da-Zao (GMDZ) decoction orally at different concentrations for a week, with Diazepam and Buspirone serving as positive controls. Anxiety-level testing was conducted using a combination of the elevated plus-maze, light/dark box, marble burying, open field, and rota-rod tests, providing a comprehensive assessment of the decoction's effects on mice.
Furthermore, the anxiolytic effects that GMDZ induced in the mice were challenged by the application of Flumazenil, a gamma-aminobutyric acid-A receptor antagonist, and WAY-100635, a serotonin-1A receptor antagonist. They found that the effects were successfully inhibited, indicating that the mechanism of action of GMDZ could be linked to both the serotonin and gamma-aminobutyric acid receptors in the nervous system, thereby reducing anxiety-like behavior in mice.