Epinephrine secretion from the perfused adrenal gland produced by scorpion toxin

Thomas P. Jacobs, David G Johnson, Robert H. Williams

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

A purified neurotoxin obtained from the scorpion Leiurus quinquestriatus was used to stimulate epinephrine (E) secretion from the isolated, perfused bovine adrenal gland. In low concentrations values. Cholinergic blockade with hexamethonium and atropine completely blocked E secretion stimulated by either toxin or acetylcholine but not secretion stimulated by potassium chloride. The results suggest that the toxin stimulates E secretion through cholinergic mechanisms either by causing release of acetylcholine from splanchnic nerve endings or by directly activating cholinergic receptors on the adrenal chromaffin cell.

Original languageEnglish (US)
Pages (from-to)405-409
Number of pages5
JournalToxicology and Applied Pharmacology
Volume46
Issue number2
DOIs
StatePublished - 1978
Externally publishedYes

Fingerprint

Scorpions
Adrenal Glands
Cholinergic Agents
Epinephrine
Acetylcholine
Splanchnic Nerves
Hexamethonium
Chromaffin Cells
Nerve Endings
Potassium Chloride
Neurotoxins
Cholinergic Receptors
Atropine

ASJC Scopus subject areas

  • Pharmacology
  • Toxicology

Cite this

Epinephrine secretion from the perfused adrenal gland produced by scorpion toxin. / Jacobs, Thomas P.; Johnson, David G; Williams, Robert H.

In: Toxicology and Applied Pharmacology, Vol. 46, No. 2, 1978, p. 405-409.

Research output: Contribution to journalArticle

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