A role of peptidergic nerves in the internal anal sphincter of Hirschsprung's disease
BACKGROUND: It is not clear what contribution the internal anal sphincter makes to the impaired motility observed in patients with Hirschsprung's disease (HD). Neuropeptides have recently been shown to be neurotransmitters in the nonadrenergic, noncholinergic inhibitory and excitatory nerves in the human gut. To clarify the physiologic significance of vasoactive intestinal polypeptide and substance P in the internal anal sphincter of HD (aganglionosis), we investigated the enteric nerve responses on lesional and normal internal anal sphincter muscle strips above the dentate line.
METHODS: The lesional and normal internal anal sphincter muscle strips above the dentate line were derived from patient with HD (9 cases) and patients who underwent rectal amputation for low rectal cancers (8 cases). A mechanographic technique was used to evaluate in vitro muscle responses to these peptides of adrenergic and cholinergic nerves before and after treatment with various autonomic nerve blockers.
RESULTS: Nonadrenergic, noncholinergic inhibitory nerves were found to act on the normal internal anal sphincter but had no effect on the enteric nerves in aganglionosis. Peptidergic (vasoactive intestinal polypeptide and substance P) nerves were found to act on normal colon, but no effect was observed in the aganglionic internal anal sphincter.
CONCLUSIONS: These findings suggest that peptidergic nerves play an important role in the impaired motility observed in the internal anal sphincter with HD.
| Medienart: |
Artikel |
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| Erscheinungsjahr: |
1999 |
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| Erschienen: |
1999 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:125 |
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| Enthalten in: |
Surgery - 125(1999), 1 vom: 01. Jan., Seite 60-6 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Tomita, R [VerfasserIn] |
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| Themen: |
0TTZ664R7Z |
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| Anmerkungen: |
Date Completed 28.01.1999 Date Revised 07.12.2017 published: Print Citation Status MEDLINE |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM098250434 |
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| 100 | 1 | |a Tomita, R |e verfasserin |4 aut | |
| 245 | 1 | 2 | |a A role of peptidergic nerves in the internal anal sphincter of Hirschsprung's disease |
| 264 | 1 | |c 1999 | |
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| 500 | |a Date Completed 28.01.1999 | ||
| 500 | |a Date Revised 07.12.2017 | ||
| 500 | |a published: Print | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a BACKGROUND: It is not clear what contribution the internal anal sphincter makes to the impaired motility observed in patients with Hirschsprung's disease (HD). Neuropeptides have recently been shown to be neurotransmitters in the nonadrenergic, noncholinergic inhibitory and excitatory nerves in the human gut. To clarify the physiologic significance of vasoactive intestinal polypeptide and substance P in the internal anal sphincter of HD (aganglionosis), we investigated the enteric nerve responses on lesional and normal internal anal sphincter muscle strips above the dentate line | ||
| 520 | |a METHODS: The lesional and normal internal anal sphincter muscle strips above the dentate line were derived from patient with HD (9 cases) and patients who underwent rectal amputation for low rectal cancers (8 cases). A mechanographic technique was used to evaluate in vitro muscle responses to these peptides of adrenergic and cholinergic nerves before and after treatment with various autonomic nerve blockers | ||
| 520 | |a RESULTS: Nonadrenergic, noncholinergic inhibitory nerves were found to act on the normal internal anal sphincter but had no effect on the enteric nerves in aganglionosis. Peptidergic (vasoactive intestinal polypeptide and substance P) nerves were found to act on normal colon, but no effect was observed in the aganglionic internal anal sphincter | ||
| 520 | |a CONCLUSIONS: These findings suggest that peptidergic nerves play an important role in the impaired motility observed in the internal anal sphincter with HD | ||
| 650 | 4 | |a Journal Article | |
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