Fig. 2. Flowchart of the GABA antagonist experiment. Behavioral tests include the von Frey filaments, hot-plate, and cold-plate tests. GABA: γ-aminobutyric acid, SNL: spinal nerve ligation, IT: intrathecal, PBS: phosphate-buffered saline, S: sham, H: hypertonic, B: bicuculline, P: phaclofen, NaCl: sodium chloride.
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