Experimental Brain Research

, Volume 66, Issue 1, pp 191–210

Catecholaminergic neurons containing GABA-like and/or glutamic acid decarboxylase-like immunoreactivities in various brain regions of the rat

  • T. Kosaka
  • K. Kosaka
  • Y. Hataguchi
  • I. Nagatsu
  • J. -Y. Wu
  • O. P. Ottersen
  • J. Storm-Mathisen
  • K. Hama
Article

DOI: 10.1007/BF00236215

Cite this article as:
Kosaka, T., Kosaka, K., Hataguchi, Y. et al. Exp Brain Res (1987) 66: 191. doi:10.1007/BF00236215

Summary

The coexistence of immunoreactivities for tyrosine hydroxylase (TH) and glutamic acid decarboxylase (GAD) and/or gamma-aminobutyric acid (GABA) was revealed in various brain regions in colchicine-injected and untreated rats, using the peroxidase-antiperoxidase method. Consecutive 40 μm thick Vibratome sections were incubated in different antisera and those cells which were bisected by the plane of sectioning so as to be included at the paired surfaces of two adjacent sections were identified. The coexistence of the immunoreactivities for TH and GAD or GABA in the same cell could thus be determined by observing the immunoreactivity of the two halves of the cell incubated in two different antisera. In the olfactory bulb, retina, diencephalon, mesencephalic central grey and cerebral cortex, many TH-like immunoreactive neurons also showed GAD-like or GABA-like immunoreactivity, whereas in the substantia nigra, ventral tegmental area and locus ceruleus none of TH-like immunoreactive neurons showed either GAD-like or GABA-like immunoreactivity. In the olfactory bulb, retina and cerebral cortex, the majority of the TH-like immunoreactive neurons were also GAD-like or GABA-like immunoreactive. In the diencephalon of colchicine-injected rats, at least one-third of the TH-like immunoreactive neurons were GAD-like immunoreactive. Using serial 0.5 μm thick plasticembedded sections, it was shown that immunoreactivities for three antigens, GAD, GABA and TH could occur in the same neurons in the olfactory bulb. These observations indicate the possible coexistence of two classical transmitters, GABA and catecholamine, in various brain regions of the rat.

Key words

GABA Catecholamine Coexistence Immunohistochemistry 

Copyright information

© Springer-Verlag 1987

Authors and Affiliations

  • T. Kosaka
    • 1
  • K. Kosaka
    • 1
  • Y. Hataguchi
    • 1
  • I. Nagatsu
    • 2
  • J. -Y. Wu
    • 3
  • O. P. Ottersen
    • 4
  • J. Storm-Mathisen
    • 4
  • K. Hama
    • 1
  1. 1.National Institute for Physiological SciencesOkazakiJapan
  2. 2.Department of AnatomySchool of Medicine, Fujita-Gakuen Health UniversityToyoakeJapan
  3. 3.Department of PhysiologyThe Milton S. Hershey Medical Center, Pennsylvania State UniversityHersheyUSA
  4. 4.Anatomical InstituteUniversity of OsloOsloNorway

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