Literature DB >> 2873866

Inhibition by neosurugatoxin of nicotine-induced antinociception.

S Yamada, Y Kagawa, N Takayanagi, E Hayashi, K Tsuji, T Kosuge.   

Abstract

We have found a selective inhibition of nicotine-induced antinociception in mice by neosurugatoxin (NSTX, 0.4-3.8 nmol/kg), a neurotoxin with a high affinity for ganglionic nicotinic receptors (ED50 = 0.65 nmol/kg). The toxin also reduced specific [3H]nicotine binding in mouse brain membranes (IC50 = 95 nM). The anti-nicotinic activity of NSTX was markedly greater than that of mecamylamine and pempidine. These data indicate that NSTX may block functional nicotinic cholinoceptors possibly in the central nervous system.

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Year:  1986        PMID: 2873866     DOI: 10.1016/0006-8993(86)90758-4

Source DB:  PubMed          Journal:  Brain Res        ISSN: 0006-8993            Impact factor:   3.252


  3 in total

1.  Different methods of assessing nicotine-induced antinociception may engage different neural mechanisms.

Authors:  A R Caggiula; L H Epstein; K A Perkins; S Saylor
Journal:  Psychopharmacology (Berl)       Date:  1995-12       Impact factor: 4.530

2.  The effect of neosurugatoxin on the release of neurohypophysial hormones by nicotine, hypotension and an osmotic stimulus in the rat.

Authors:  G W Bisset; K M Fairhall; K Tsuji
Journal:  Br J Pharmacol       Date:  1992-07       Impact factor: 8.739

3.  Depression by nicotine of pain-related nociceptive activity in the rat thalamus and spinal cord.

Authors:  I Jurna; P Krauss; J Baldauf
Journal:  Clin Investig       Date:  1993-12
  3 in total

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