Localization of neurokinin B in the central nervous system of the rat

István Merchenthaler, Jerome L. Maderdrut, Finbarr O'Harte, J. Michael Conlon

Research output: Contribution to journalArticlepeer-review

65 Citations (Scopus)


The distribution of neurokinin B (NKB) was determined by immunocytochemistry with antisera directed toward its amino terminus. Immunoreactive perikarya were detected in the main and accessory olfactory bulbs, cortical regions, the olfactory tubercle, the bed nucleus of the stria terminalis, the diagonal band of Broca, the nucleus accumbens, the septum, the neostriatum, several hypothalamic nuclei, the superior colliculus, the central gray, the substantia nigra, the medullary reticular formation, and the external cuneate nucleus. The distribution of NKB-containing perikarya revealed by immunocytochemistry was similar to the distribution of protachykinin B-containing cells previously visualized by in situ hybridization. Immunoreactive nerve fibers and terminals were detected in all major subdivisions of the brain. The levels of NKB measured by radioimmunoassay were highest in the hypothalamus. The distribution of NKB in the rat brain was similar to the distribution of substance P; however, there were several regions where the two distributions were clearly different.

Original languageEnglish
Pages (from-to)815-829
Number of pages15
Issue number4
Publication statusPublished - 1992
Externally publishedYes


  • Brain
  • Hypothalamus
  • Immunocytochemistry
  • Neurokinin B
  • Peptides
  • Radioimmunoassay
  • Substance P
  • Tachykinins

ASJC Scopus subject areas

  • Biochemistry
  • Physiology
  • Endocrinology
  • Cellular and Molecular Neuroscience


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