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Titolo:
MYENTERIC NEURONS OF THE MOUSE SMALL-INTESTINE - MORPHOMETRY AND ACETYLCHOLINESTERASE ACTIVITY
Autore:
BORSENGSHU E; CHADI G; BORJIUNSHU F; FERRAZDECARVALHO CA; DESOUZA RR;
Indirizzi:
UNIV SAO PAULO,IST CIENCIAS BIOMED 3,DEPT ANAT,CIDADE UNIV BR-05508900 SAO PAULO SP BRAZIL UNIV SAO PAULO,IST CIENCIAS BIOMED 3,DEPT ANAT BR-05508900 SAO PAULO SP BRAZIL
Titolo Testata:
Brazilian journal of medical and biological research
fascicolo: 1, volume: 27, anno: 1994,
pagine: 101 - 108
SICI:
0100-879X(1994)27:1<101:MNOTMS>2.0.ZU;2-5
Fonte:
ISI
Lingua:
ENG
Soggetto:
ENTERIC GANGLIA; GUINEA-PIGS; NUMBER; SHEEP; SIZE; MICE; RAT;
Keywords:
ENTERIC NERVOUS SYSTEM; MYENTERIC PLEXUS; SMALL INTESTINE; NEURON SIZE; HISTOCHEMISTRY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
18
Recensione:
Indirizzi per estratti:
Citazione:
E. Borsengshu et al., "MYENTERIC NEURONS OF THE MOUSE SMALL-INTESTINE - MORPHOMETRY AND ACETYLCHOLINESTERASE ACTIVITY", Brazilian journal of medical and biological research, 27(1), 1994, pp. 101-108

Abstract

1. The myenteric plexus of the small intestine of five CS7BL/6J male 5-month-old mice was investigated in whole-mount preparations of the muscularis externa by Giemsa staining and by the acetylcholinesterase (AChE) histochemical technique. 2. The neuronal density was 20212 +/- 3038/cm(2) (mean +/- SEM) in the duodenum, 21948 +/- 1488/cm(2) in the jejunum, and 25048 +/- 2356/cm(2) in the ileum. The difference in neuronal density between duodenum and ileum was statistically significant (P<0.05). The total serosal surface area of the small intestine was about 30.80 +/- 2.90 cm(2), and the total number of neurons was estimated at about 690,000. 3. The neuronal cell and nucleus profile areas ranged, respectively, from 23 to 325 mu m(2) and from 6 to 95 mu m(2) in the small intestine of the mice studied. There were no significant differences in any of the 3 regions in terms of average neuronal cell or nucleus profile areas. 4. For the histochemical demonstration of AChE,the ''direct coloring'' copper ferrocyanide method was used. AChE-positive nerve fibers were distributed in the myenteric plexus which was formed by a primary meshwork of relatively large nerve bundles and a secondary meshwork of finer nerve bundles. Most of the neurons of the plexus displayed AChE activity in the cytoplasm though the neurons presented different reaction intensities. 5. The results of the present study show that the myenteric plexus of the C57BL/6J mouse small intestine contains a large number of neurons which have different sizes and AChE activities.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 22/09/20 alle ore 20:43:33