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Distribution patterns of neurotensin-like immunoreactive cells in the gastro-intestinal tract of higher vertebrates. 1980

M Reinecke, and K Almasan, and R Carraway, and V Helmstaedter, and W G Forssmann

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.

UI MeSH Term Description Entries
D008116 Lizards Reptiles within the order Squamata that generally possess limbs, moveable EYELIDS, and EXTERNAL EAR openings, although there are some species which lack one or more of these structures. Chameleons,Geckos,Chameleon,Gecko,Lizard
D009496 Neurotensin A biologically active tridecapeptide isolated from the hypothalamus. It has been shown to induce hypotension in the rat, to stimulate contraction of guinea pig ileum and rat uterus, and to cause relaxation of rat duodenum. There is also evidence that it acts as both a peripheral and a central nervous system neurotransmitter.
D010802 Phylogeny The relationships of groups of organisms as reflected by their genetic makeup. Community Phylogenetics,Molecular Phylogenetics,Phylogenetic Analyses,Phylogenetic Analysis,Phylogenetic Clustering,Phylogenetic Comparative Analysis,Phylogenetic Comparative Methods,Phylogenetic Distance,Phylogenetic Generalized Least Squares,Phylogenetic Groups,Phylogenetic Incongruence,Phylogenetic Inference,Phylogenetic Networks,Phylogenetic Reconstruction,Phylogenetic Relatedness,Phylogenetic Relationships,Phylogenetic Signal,Phylogenetic Structure,Phylogenetic Tree,Phylogenetic Trees,Phylogenomics,Analyse, Phylogenetic,Analysis, Phylogenetic,Analysis, Phylogenetic Comparative,Clustering, Phylogenetic,Community Phylogenetic,Comparative Analysis, Phylogenetic,Comparative Method, Phylogenetic,Distance, Phylogenetic,Group, Phylogenetic,Incongruence, Phylogenetic,Inference, Phylogenetic,Method, Phylogenetic Comparative,Molecular Phylogenetic,Network, Phylogenetic,Phylogenetic Analyse,Phylogenetic Clusterings,Phylogenetic Comparative Analyses,Phylogenetic Comparative Method,Phylogenetic Distances,Phylogenetic Group,Phylogenetic Incongruences,Phylogenetic Inferences,Phylogenetic Network,Phylogenetic Reconstructions,Phylogenetic Relatednesses,Phylogenetic Relationship,Phylogenetic Signals,Phylogenetic Structures,Phylogenetic, Community,Phylogenetic, Molecular,Phylogenies,Phylogenomic,Reconstruction, Phylogenetic,Relatedness, Phylogenetic,Relationship, Phylogenetic,Signal, Phylogenetic,Structure, Phylogenetic,Tree, Phylogenetic
D011896 Rana temporaria A species of the family Ranidae occurring in a wide variety of habitats from within the Arctic Circle to South Africa, Australia, etc. European Common Frog,Frog, Common European,Common European Frog,Common Frog, European,European Frog, Common,Frog, European Common
D003370 Coturnix A genus of BIRDS in the family Phasianidae, order GALLIFORMES, containing the common European and other Old World QUAIL. Japanese Quail,Coturnix japonica,Japanese Quails,Quail, Japanese,Quails, Japanese
D004064 Digestive System A group of organs stretching from the MOUTH to the ANUS, serving to breakdown foods, assimilate nutrients, and eliminate waste. In humans, the digestive system includes the GASTROINTESTINAL TRACT and the accessory glands (LIVER; BILIARY TRACT; PANCREAS). Ailmentary System,Alimentary System
D004702 Endocrine Glands Ductless glands that secrete HORMONES directly into the BLOOD CIRCULATION. These hormones influence the METABOLISM and other functions of cells in the body. Endocrine Gland,Gland, Endocrine
D006054 Goldfish Common name for Carassius auratus, a type of carp (CARPS). Carassius auratus
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D001001 Anura An order of the class Amphibia, which includes several families of frogs and toads. They are characterized by well developed hind limbs adapted for jumping, fused head and trunk and webbed toes. The term "toad" is ambiguous and is properly applied only to the family Bufonidae. Bombina,Frogs and Toads,Salientia,Toad, Fire-Bellied,Toads and Frogs,Anuras,Fire-Bellied Toad,Fire-Bellied Toads,Salientias,Toad, Fire Bellied,Toads, Fire-Bellied

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