PMID: 9006719Jan 1, 1997Paper

An immunohistochemical analysis of the ontogeny, distribution and coexistence of 12 regulatory peptides and serotonin in endocrine cells and nerve fibers of the digestive tract of the turbot, Scophthalmus maximus (Teleostei)

Anatomy and Embryology
M ReineckeH Segner

Abstract

The ontogeny of endocrine cells and nerve fibers containing immunoreactivities for 12 regulatory peptides and serotonin was studied in the digestive tract of a flatfish, the turbot (Scophthalmus maximus), using antisera specific for mammalian and teleostean hormones. Transient insulin-immunoreactive (-IR) endocrine cells were detected from day 5 to day 10 in stomach and intestine I. Somatostatin (SOM)-IR cells appeared at day 8 in the stomach anlage and intestine I. In contrast to the islet cells, they reacted with antisera against mammalian (m) SOM-14 and salmon (s) SOM-25. Infrequent nerve fibers reacting only with anti-mSOM-14 appeared around day 24. Thus, different forms of SOM seem to be present in the gastro-entero-pancreatic system and the enteric nervous system. Neuropeptide Y (NPY)-, salmon pancreatic polypeptide (sPP)- and mPP-immunoreactivities coexisted throughout development. In entero-endocrine cells, NPY/PP-immunoreactivity was first observed at day 8 and around day 24 in enteric nerve fibers. Glucagon (GLUC)-IR entero-endocrine cells appeared at day 5. No coexistence of NPY/PP- and GLUC-immunoreactivities was observed. The first insulin-like growth factor I (IGF-I)-IR cells were identified around day 8. They see...Continue Reading

Citations

Dec 22, 1999·General and Comparative Endocrinology·A A Al-Mahrouki, J H Youson
May 10, 2000·The Science of the Total Environment·C Sarasquete, H Segner
May 3, 2005·General and Comparative Endocrinology·Laura E Nelson, Mark A Sheridan
Jan 7, 2009·Acta histochemica·Catharina Olsson
Aug 11, 2004·General and Comparative Endocrinology·Giampaolo BosiCinzia Domeneghini
Jun 16, 2009·General and Comparative Endocrinology·E ZhaoVance L Trudeau
Dec 22, 1999·General and Comparative Endocrinology·J H Youson, A A Al-Mahrouki
Nov 24, 2004·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Randal K Buddington, Ashild Krogdahl
Aug 21, 2010·Autonomic Neuroscience : Basic & Clinical·Catharina Olsson, Susanne Holmgren
Dec 15, 2010·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Carlos R Rojas-GarcíaIvar Rønnestad

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