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Titolo:
Dendritic hypertrophy of Stach type VI neurons within experimentally altered ileum of pigs
Autore:
Brehmer, A; Frieser, M; Graf, M; Radespiel-Troger, M; Gobel, D; Neuhuber, W;
Indirizzi:
Univ Erlangen Nurnberg, Dept Anat 1, D-91054 Erlangen, Germany Univ Erlangen Nurnberg Erlangen Germany D-91054 -91054 Erlangen, Germany Univ Rostock, Inst Anat, Rostock, Germany Univ Rostock Rostock GermanyUniv Rostock, Inst Anat, Rostock, Germany Univ Erlangen Nurnberg, Inst Med Informat Biometrie & Epidemiol, D-91054 Erlangen, Germany Univ Erlangen Nurnberg Erlangen Germany D-91054 -91054 Erlangen, Germany
Titolo Testata:
AUTONOMIC NEUROSCIENCE-BASIC & CLINICAL
fascicolo: 1-2, volume: 89, anno: 2001,
pagine: 31 - 37
SICI:
1566-0702(20010620)89:1-2<31:DHOSTV>2.0.ZU;2-8
Fonte:
ISI
Lingua:
ENG
Soggetto:
PORCINE SMALL-INTESTINE; ENTERIC NERVOUS-SYSTEM; MYENTERIC NEURONS; GROWTH-FACTOR; GUINEA-PIG; GANGLION; RAT; PROJECTIONS; MORPHOLOGY; PLASTICITY;
Keywords:
enteric nervous system; gut; innervation; morphology; plasticity; stenosis;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
30
Recensione:
Indirizzi per estratti:
Indirizzo: Brehmer, A Univ Erlangen Nurnberg, Dept Anat 1, Krankenhausstr 9, D-91054 Erlangen, Germany Univ Erlangen Nurnberg Krankenhausstr 9 Erlangen GermanyD-91054
Citazione:
A. Brehmer et al., "Dendritic hypertrophy of Stach type VI neurons within experimentally altered ileum of pigs", AUTON NEURO, 89(1-2), 2001, pp. 31-37

Abstract

Myenteric neurons were investigated morphometrically to answer the question if type-specific somal hypertrophy of type VI neurons in mechanically stressed ileum of pigs, which was known from an earlier study, is correlated with an increased dendritic arborization, that is, with dendritic hypertrophy. Muscular hypertrophy was induced in the ileum of two juvenile pigs by narrowing the gut circumference (mechanical stenosis) and by reversing a loopof ileum which results in an antiperistaltic segment (functional stenosis), respectively. After a survival time of 6 weeks, wholemounts from the pre-and poststenotic ileal regions, from the antiperistaltic segment as well as from an age matched control animal, were silver impregnated. Dendritic parameters of Stach types IV and VI neurons were recorded using a computer-aided morphometric program and analysed statistically. Type IV neurons showedno change of dendritic parameters, neither within control nor within stenosed ileal segments. In contrast, the type VI neurons displayed increased dendritic parameters within zones of muscular hypertrophy such as total dendritic length, numbers of dendrites, of dendritic branching points and of dendritic endings. We suggest that type VI neurons may participate as descending nitrergic interneurons or motorneurons in the control of muscular function, thus, undergoing plastic changes in case of experimental muscular hypertrophy. Type IV neurons which are involved in the regulation of mucosal processes were not affected by muscular hypertrophy. (C) 2001 Elsevier ScienceB.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/12/20 alle ore 00:01:51