Abstract
Immunohistochemical staining of alternate consecutive sections revealed numerous histidine decarboxylase (L-histidine carboxy-lyase, EC 4.1.1.22)-like immunoreactive neurons that also contained glutamate decarboxylase (L-glutamate 1-carboxy-lyase, EC 4.1.1.15)-like immunoreactive structures in the tuberal magnocellular nucleus, the caudal magnocellular nucleus, and the postmammillary caudal magnocellular nucleus of the posterior hypothalamus of rats. Furthermore, in immunohistochemical double-staining procedures, almost all neurons in the magnocellular nuclei had both histidine decarboxylase-like and glutamate decarboxylase-like immunoreactivities. These results suggest the coexistence of histamine and gamma-aminobutyric acid in single neurons in these nuclei.
MeSH Terms
Animals
Antibodies
Antigen-Antibody Complex
Carboxy-Lyases/analysis
Glutamate Decarboxylase/analysis
Histidine Decarboxylase/analysis
Histocytochemistry
Hypothalamus/enzymology
Hypothalamus, Posterior/cytology,enzymology
Liver/enzymology
Male
Neurons/enzymology
Rats
Rats, Inbred Strains
Chemicals
Antibodies
Antigen-Antibody Complex
Carboxy-Lyases
Glutamate Decarboxylase
Histidine Decarboxylase
Authors & Affiliations
8 authors, click to expand affiliations / ORCID
Takeda N
Inagaki S
Shiosaka S
Taguchi Y
Oertel W H
Tohyama M
Watanabe T
Wada H
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