Substance P-immunoreactive peripheral branches of sensory neurons innervate guinea pig sympathetic neurons.

@article{Matthews1982SubstancePP,
  title={Substance P-immunoreactive peripheral branches of sensory neurons innervate guinea pig sympathetic neurons.},
  author={Marc R. Matthews and Augusto Claudio Cuello},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  year={1982},
  volume={79 5},
  pages={1668-72}
}
The presence of substance P-immunoreactive (SPI) varicose nerve networks and nerve fiber bundles in guinea pig prevertebral sympathetic ganglia has been confirmed by fluorescence immunohistochemistry. No SPI neurons have been found in sympathetic ganglia, including lumbar paravertebral ganglia. Peroxidase-antiperoxidase immunocytochemical methods have shown that SPI nerve terminal varicosities in the inferior mesenteric ganglion (IMG) form morphologically identifiable synapses on dendritic… CONTINUE READING