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Changes in intestinal endocrine cells in the mouse after unilateral cervical vagotomy
Faculty
Science
Year:
1999
Type of Publication:
Article
Pages:
453-460
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:000079492400013
Keywords :
computerised image analysis, endocrine cells, intestine, mouse, unilateral vagotomy
Abstract:
The effect of right or left unilateral cervical vagotomy on the intestinal endocrine cells was studied in 23 mice at 2 and 8 weeks after operation, respectively. The results were compared with that from 10 sham operated mice. Various types of endocrine cells in duodenum and proximal colon were detected by immunohistochemistry and quantified by computerized image analysis. In mouse duodenum, chromogranin-, CCK/gastrin-, GIP- and somatostatin-cells were significantly decreased at 2 weeks after right vagotomy, but returned to the control levels at 8 weeks. Serotonin-cells were reduced at both 2 and 8 weeks after right vagotomy. The amount of the duodenal endocrine cells did not change after left vagotomy with the exception of secretin-cells, which were diminished at 8 weeks after both right and left vagotomy. In the proximal colon, chromogranin-cells were also decreased at 2 weeks after right vagotomy. Serotonin-cells were reduced at 8 weeks after left vagotomy but not right vagotomy. There was no significant difference between the unilaterally vagotomized and the sham operated mice with regard to PYY- and glucagon-cells. It was concluded that vagotomy affected the intestinal endocrine cells in mouse. The influence was more pronounced in the small intestine than the proximal colon. The right vagus nerves seemed to exert more effect on the intestinal endocrine cells than the left ones.
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