Document Detail

Ontogeny of cholecystokinin-immunoreactive cells in the digestive tract of Atlantic halibut, Hippoglossus hippoglossus, larvae.
MedLine Citation:
PMID:  11551115     Owner:  NLM     Status:  MEDLINE    
The appearance and distribution of cholecystokinin (CCK)-producing cells were investigated in the digestive tract of developing larvae of cultured Atlantic halibut, Hippoglossus hippoglossus. The CCK-producing cells were detected immunohistochemically, by use of a primary antiserum against CCK cloned for the Japanese flounder, Paralichthys olivaceus. No CCK-immunoreactive (IR) cells were detected in first-feeding larvae (33 days after hatching, DAH). Forty-five DAH or 12 days after first feeding, there were a few scattered CCK-IR cells in the epithelium of the anterior midgut in about 30% of the examined larvae. All larvae older than 52 DAH had CCK-IR cells in the anterior midgut, particularly frequent in the most anterior region adjacent to the pyloric caeca. No CCK-IR cells were detected in the foregut, the hindgut, or the midgut posterior to the first curvature. The CCK-IR cells spanned the intestinal epithelium from the basal lamina to the lumen and were triangular in shape, with the nucleus in the basal part and a thin apex toward the lumen. The mechanisms controlling release of bile, pancreatic enzymes, and peristalsis during the 12 days between first feeding and the first detection of CCK-IR cells remain to be clarified.
Y Kamisaka; G K Totland; M Tagawa; T Kurokawa; T Suzuki; M Tanaka; I Rønnestad
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  General and comparative endocrinology     Volume:  123     ISSN:  0016-6480     ISO Abbreviation:  Gen. Comp. Endocrinol.     Publication Date:  2001 Jul 
Date Detail:
Created Date:  2001-09-11     Completed Date:  2001-12-28     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0370735     Medline TA:  Gen Comp Endocrinol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  31-7     Citation Subset:  IM    
Division of Applied Biosciences, Graduate School of Agriculture, Kyoto University, Kitashirakawa, Japan.
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MeSH Terms
Cholecystokinin / analysis*,  biosynthesis
Digestive System / chemistry*,  cytology,  growth & development*
Flounder / growth & development*
Larva / chemistry*,  growth & development*
Tissue Distribution
Reg. No./Substance:

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