Abstract:
:The distribution of neuropeptide Y immunoreactive cell bodies in relation to various types of catecholamine-containing cell bodies in the rat brain was analyzed immunohistochemically using antisera to tyrosine hydroxylase, dopamine beta-hydroxylase and phenylethanolamine N-methyltransferase. Coexistence of the peptide in catecholamine cell bodies was established by using an elution-restaining procedure. Neuropeptide Y-like immunoreactivity was observed in most noradrenergic cell bodies of the Al/Cl cell groups in the ventro lateral medulla oblongata. Similarly this peptide immunoreactivity was also observed in the majority of the adrenergic cell bodies of the C2 group. In the dorsal and dorsal-lateral part of the nucleus of the solitary tract, where a group of small adrenergic cells is present, several small neuropeptide Y immunoreactive cells were also observed. The possibility of coexistence of adrenaline and neuropeptide Y in these cells remains to be established. The majority of the noradrenergic cell bodies of the A2 group, as well as the presumptive dopaminergic cells within its ventromedial part, seemed to lack neuropeptide Y-like immunoreactivity. Many noradrenergic cell bodies of the A6 group in the locus coeruleus proper were neuropeptide Y-immunoreactive, whereas the peptide could not be observed in the subcoeruleus group. Neither the A5 and A7 noradrenergic cells in the pons, nor any of the dopaminergic cell groups in the mesencephalon and forebrain (A8-A15) seemed to contain a neuropeptide Y-like peptide. The findings indicate that central catecholamine neurons can be subdivided into distinct sub-groups based upon the coexistence of a specific peptide.
journal_name
Neurosciencejournal_title
Neuroscienceauthors
Everitt BJ,Hökfelt T,Terenius L,Tatemoto K,Mutt V,Goldstein Mdoi
10.1016/0306-4522(84)90036-8subject
Has Abstractpub_date
1984-02-01 00:00:00pages
443-62issue
2eissn
0306-4522issn
1873-7544pii
0306-4522(84)90036-8journal_volume
11pub_type
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