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Effects of unilateral cervical vagotomy on antral endocrine cells in mouse
Faculty
Science
Year:
1999
Type of Publication:
Article
Pages:
705-709
Authors:
SHALABY, A, Qian, BF, El-Salhy, M, Danielsson, A, Axelsson, H
Journal:
HISTOLOGY AND HISTOPATHOLOGY F HERNANDEZ
Volume:
14
Research Area:
Cell Biology; Pathology
ISSN
ISI:000081241800005
Keywords :
computerised image analysis, endocrine cells, antrum, mouse, unilateral vagotomy
Abstract:
The present study was carried out to investigate the effect of unilateral cervical vagotomy on the antral endocrine cells in mouse. Fifty-four mice were randomly divided into three groups, 18 in each, for left or right cervical vagotomy, or sham operation as controls. The animals were sacrificed 2, 4, and 8 weeks after the operation, respectively. Chromogranin-, gastrin/CCK-, serotonin-, and somatostatin-cells were detected by immunohistochemistry and quantitated by computerised image analysis. The results showed that the number of chromogranin-cells was decreased in both left and right vagotomized mice after 4 weeks and remained at the same level after 8 weeks. The numbers of gastrin-, serotonin- and somatostatin-cells did not change after right vagotomy. However, the numbers of gastrin- and somatostatin-cells were decreased after left vagotomy, whereas no change was found in serotonin-cells. Endocrine cells with vacuolated cytoplasm and pyknotic nuclei were also observed during the course of time. The alteration in the antral endocrine cells observed in this study seemed to be dynamic and depended on the observation time after the operation as well as the denervated branches of the vagus nerve. This may explain, at least partially the contradictory results obtained earlier by different investigators.
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