Increased spinal release of excitatory amino acids following intradermal injection of capsaicin is reduced by a protein kinase G inhibitor.

Second messengers have been shown to play a role in the release of neurotransmitters presynaptically in several brain regions and cell types. This study was designed to test the hypothesis that the increased release of aspartate and glutamate that occurs after injection of capsaicin is dependent on activation of the cAMP and the cGMP transduction cascades… CONTINUE READING