Neurotensin: immunohistochemical localization in rat central nervous system.

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Abstract
Neurotensin immunofluorescence was examined in the rat central nervous system using a well-characterized antiserum directed against this tridecapeptide. Morphological characteristics of the fluorescence indicate its association with neuronal cell bodies and processes in the brain and with cells of the anterior pituitary. Fluorescence is seen in many brain areas, with notable densities in the substantia gelatinosa zones of the spinal cord and trigeminal nucleus, central amygdaloid nucleus, anterior pituitary, median eminence, and preoptic and basal hypothalamic areas.