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Title

Retrograde tracing of enteric neuronal pathways.

Authors

Brookes, S. J. H.

Abstract

Neuroanatomical tracing techniques, and retrograde labelling in particular, are widely used tools for the analysis of neuronal pathways in the central and peripheral nervous system. Over the last 10 years, these techniques have been used extensively to identify enteric neuronal pathways. In combination with multiple-labelling immunohistochemistry, quantitative data about the projections and neurochemical profile of many functional classes of cells have been acquired. These data have revealed a high degree of organization of the neuronal plexuses, even though the different classes of nerve cell bodies appear to be randomly assorted in ganglia. Each class of neurone has a predictable target, length and polarity of axonal projection, a particular combination of neurochemicals in its cell body and distinctive morphological characteristics. The combination of retrograde labelling with targeted intracellular recording has made it possible to target small populations of cells that would rarely be sampled during random impalements. These neuroanatomical techniques have also been applied successfully to human tissue and are gradually unravelling the complexity of the human enteric nervous system.

Subjects

NEURAL physiology; PERIPHERAL nervous system physiology; NEUROANATOMY

Publication

Neurogastroenterology & Motility, 2001, Vol 13, Issue 1, p1

ISSN

1350-1925

Publication type

Academic Journal

DOI

10.1046/j.1365-2982.2001.00235.x

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