Abstract
The present study analyzed expressional changes of excitatory neurotransmitters and inhibitory neurotransmitters in the rat corpus striatum after single-use and combined-use diazepam and Chinese herb moschus. The influence of moschus on the central nervous system was analyzed, in particular whether moschus increased penetration of other drugs into the brain. Reverse-phase high-performance liquid chromatography, which included pre-column derivation with orthophthaladehyde detection, showed varied increased levels of excitatory neurotransmitters, including aspartate and glutamate, and inhibitory neurotransmitters, including glycine and γ-aminobutyric acid, in the corpus striatum after treatment with moschus alone, diazepam alone, or a combination of both. Compared with the diazepam group, aspartate levels significantly decreased at 30 and 60–105 minutes after combined treatment with moschus, while glutamate significantly increased at 45 and 75–105 minutes, glycine levels significantly increased at 105 minutes, and γ-aminobutyric acid increased at 30 and 75–105 minutes. These findings suggested that moschus increased the inhibition effects of diazepam on the brain.
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