ArticleDigestive diseases and sciences2004
Phospholipase C and src tyrosine kinases mediate neurotensin-stimulated Cl- secretion in rabbit proximal colon.
Article in Digestive diseases and sciences, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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4 authors at 3 institutions in 1 country.
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Abstract
Calcium-dependent secretagogues, such as neurotensin, stimulate age-dependent chloride transport in rabbit distal colonocytes, but their action in the proximal colon is unknown. This study examines the effect of neurotensin on chloride transport and its mechanism of action in rabbit proximal colonocytes. Our results show that neurotensin stimulates chloride transport only in adult, and not weanling or newborn, colonocytes. The calcium ionophore A23187 shows similar age dependence, while PGE2, which acts via cAMP, stimulates transport in all ages. The roles of phospholipase C, tyrosine kinases, and src tyrosine kinases were examined using specific inhibitors, i.e., U73122, genistein, and PP2, respectively. All three agents significantly inhibit neurotensin-stimulated chloride transport in adult colonocytes. In conclusion, this study reports for the first time that neurotensin stimulates chloride secretion in rabbit proximal colonocytes. This is also the first demonstration that neurotensin action exhibits age dependence and is dependent on phospholipase C and src tyrosine kinase activity.
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