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Projections and Pathways of Submucous Neurons to the Mucosa of the Guinea-pig Small Intestine

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Journal Cell Tissue Res
Date 1992 Jul 1
PMID 1384975
Citations 16
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Abstract

Double-labelling immunohistochemistry and retrograde transport of the carbocyanine dye, DiI, were used to establish the pathways of submucous neurons to the mucosa of the guinea-pig small intestine. Following the application of DiI to a villus, DiI-labelled nerve cell bodies were found in the submucous plexus up to 8.3 mm circumferentially and 3.8 mm longitudinally. The size of each of the four characterised classes of submucous neurons was determined and their distributions and projections mapped. Cells characterised by vasoactive intestinal polypeptide immunoreactivity accounted for 52% of DiI-labelled cells and had the longest projections. Cells characterised by neuropeptide Y (19%) or by calretinin immunoreactivity (13% of all DiI-labelled neurons) had relatively short projections and cells with substance P immunoreactivity (20%) had intermediate lengths of projection. When DiI was applied directly to the submucous plexus, filled neurons of all classes had significantly shorter projections, indicating that they must run for considerable distances in other pathways to the mucosa, probably via the non-ganglionated plexus. On average, each villus is innervated by at least 70 submucous neurons. From quantitative estimates there are 9 submucous neurons per villus. Thus, each submucous neuron is likely to supply about 8 villi. This demonstrates a high degree of convergence and divergence in the innervation of the mucosa.

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References
1.
Gallacher M, Mackenna B, McKirdy H . Effects of drugs and of electrical stimulation on the muscularis mucosae of rabbit large intestine. Br J Pharmacol. 1973; 47(4):760-4. PMC: 1776067. DOI: 10.1111/j.1476-5381.1973.tb08202.x. View

2.
Keast J . Mucosal innervation and control of water and ion transport in the intestine. Rev Physiol Biochem Pharmacol. 1987; 109:1-59. DOI: 10.1007/BFb0031024. View

3.
Brookes S, Steele P, Costa M . Calretinin immunoreactivity in cholinergic motor neurones, interneurones and vasomotor neurones in the guinea-pig small intestine. Cell Tissue Res. 1991; 263(3):471-81. DOI: 10.1007/BF00327280. View

4.
Song Z, Brookes S, Costa M . Identification of myenteric neurons which project to the mucosa of the guinea-pig small intestine. Neurosci Lett. 1991; 129(2):294-8. DOI: 10.1016/0304-3940(91)90484-b. View

5.
Wilson A, Furness J, Costa M . The fine structure of the submucous plexus of the guinea-pig ileum. I. The ganglia, neurons, Schwann cells and neuropil. J Neurocytol. 1981; 10(5):759-84. DOI: 10.1007/BF01262652. View