These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Excitability of primary afferents in feline spinal cord: taurine, homotaurine, and gamma-aminobutyric acid compared.
    Author: Capek R, Esplin B.
    Journal: Can J Physiol Pharmacol; 1982 Jun; 60(6):850-5. PubMed ID: 7116229.
    Abstract:
    Effects of taurine and homotaurine (3-aminopropanesulfonic acid), on excitability of primary afferents were compared with effects of gamma-aminobutyric acid (GABA) in spinal unanaesthesized cats. Homotaurine and GABA, administered intravenously or topically, produced a marked increase in afferent excitability. Homotaurine was about 10 times more potent than GABA. Taurine (up to 2 mmol/kg i.v., or 10 mM topically) did not produce a consistent change in afferent excitability. The effect of homotaurine was antagonized by bicuculline or picrotoxin in doses which suppressed the primary afferent depolarization, as indicated by an increase of afferent excitability, evoked by conditioning stimulation of an antagonistic muscle nerve. Semicarbazide, an inhibitor of GABA synthesis, did not attenuate the homotaurine-induced excitability changes of afferents while suppressing entirely the primary afferent depolarization. These findings suggest that homotaurine exerts a direct GABA-like action on feline primary afferents.
    [Abstract] [Full Text] [Related] [New Search]