Enkephalin-immunoreactive neuronal projections from the medulla oblongata to the intermediolateral cell column: relationship to substance P-immunoreactive neurons.

The Journal of Comparative Neurology
C A Sasek, C J Helke

Abstract

The present study investigated the ventral medullary distribution of enkephalin-immunoreactive neurons that project to the intermediolateral cell column and the relationship of these neurons to substance P-immunoreactive neurons. Neurons that projected to the intermediolateral cell column were identified by the presence of rhodamine-labeled microspheres within the neuronal cell body after an injection of the microspheres into the intermediolateral cell column of the third thoracic spinal cord segment. Enkephalin- and substance P-immunoreactivities were identified by dual-color immunohisto-chemistry. Enkephalin-immunoreactive neurons that projected to the intermediolateral cell column were present in the raphe magnus, the nucleus reticularis magnocellularis pars alpha, the paragigantocellular reticular nucleus, and the parapyramidal region. These neurons were present throughout the rostrocaudal extent of each of these nuclei. However, in the raphe magnus the greatest number was present at more rostral levels of the nucleus. The morphology and distribution of enkephalin-immunoreactive neurons that projected to the intermediolateral cell column were similar to those of enkephalin-immunoreactive neurons that were not observed to co...Continue Reading

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Citations

Jun 25, 1998·Journal of Physiology, Paris·M TraoreH Sequeira
Jan 1, 1990·Annals of the New York Academy of Sciences·C J HelkeC A Sasek
Jan 1, 1991·Annals of the New York Academy of Sciences·C J HelkeJ E Krause
Mar 22, 1996·Annals of the New York Academy of Sciences·C J Helke, L Yang
Sep 4, 2015·Autonomic Neuroscience : Basic & Clinical·Belinda R Bowman, Ann K Goodchild
Jan 20, 2004·The Journal of Comparative Neurology·Tanja Babic, John Ciriello
Jul 13, 2002·The Journal of Comparative Neurology·Jane B MinsonIda J Llewellyn-Smith
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Jan 18, 2002·Journal of Applied Physiology·S O MackM A Haxhiu
Jun 1, 1992·The Journal of Comparative Neurology·P PilowskyJ Chalmers

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