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XB-ART-31531
Cell Tissue Res 1980 Jan 01;2053:383-95.
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Distribution patterns of neurotensin-like immunoreactive cells in the gastro-intestinal tract of higher vertebrates.

Reinecke M , Almasan K , Carraway R , Helmstaedter V , Forssmann WG .


Abstract
The endocrine system of the gastro-intestinal tract of selected species representing the five higher vertebrate classes was investigated with reference to occurrence and distribution of neurotensin-like immunoreactive cells. Using antibodies against C-terminal and N-terminal fragments of neurotensin and against the C-terminal sequence of xenopsin it was demonstrated that the intestine of all species studied contains endocrine, neurotensin-like immunoreactive cells. However, large differences in localization and frequency of these neurotensin-like immunoreactive cells were found. Except for a teleostean fish, neurotensin-like immunoreactive cells in the gastro-intestinal tract were more frequent in non-mamalian vertebrates than in mammals. In contrast to mammals, where the highest density of neurotensin-like immunoreactive cells was present in the ileal mucosa, in the non-mammalian vertebrates studied the corresponding cells were most abundant in the pyloric-duodenal junction. The exact mapping of neurotensin-like immunoreactive cells is presented throughout the entire gastro-intestinal tract of six species (Rattus, Coturnix, Lacerta, Rana, Xenopus, Carassius) including a quantitative evaluation of sequential serial sections.

PubMed ID: 6965612



Species referenced: Xenopus
Genes referenced: levi

References [+] :
ABERCROMBIE, Estimation of nuclear population from microtome sections. 1946, Pubmed