Localization of 3H-norepinephrine binding sites in the trout gill

N. P. Nekvasil, Kenneth Olson

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Tritiated norepinephrine (Nepi) or Epinephrine (Epi) was perfused through isolated gills of rainbow trout (Salmo gairdneri) and the affinity of vascular tissues for the amines examined by autoradiography. Pillar cells and certain endothelial cells in the filamental sinus accumulate 3H-Nepi extensively. The afferent and efferent filamental arteries and filamental nutrient vessels did not bind 3H-Nepi. Pillar cell and venous endothelial accumulation is selective for Nepi; Epi is not accumulated by these cells, and Nepi uptake can be inhibited by imipramine. These results suggest that pillar and venous endothelial cells are involved in regulation of plasma Nepi.

Original languageEnglish (US)
Pages (from-to)309-313
Number of pages5
JournalJournal of Experimental Zoology
Volume235
Issue number2
StatePublished - 1985

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norepinephrine
trout
binding sites
gills
epinephrine
endothelial cells
Oncorhynchus mykiss
autoradiography
xylem vessels
vascular tissues
cells
sinuses
amines
arteries
uptake mechanisms
nutrients

ASJC Scopus subject areas

  • Animal Science and Zoology

Cite this

Localization of 3H-norepinephrine binding sites in the trout gill. / Nekvasil, N. P.; Olson, Kenneth.

In: Journal of Experimental Zoology, Vol. 235, No. 2, 1985, p. 309-313.

Research output: Contribution to journalArticle

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