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Related Experiment Videos

[Anti-arrhythmic effect of phytoadaptogens].

L A Maĭmeskulova1, L N Maslov

  • 1Laboratory of Experimental Cardiology, Siberian Division of the Russian Academy of Medical Sciences, Tomsk, Russia.

Eksperimental'Naia I Klinicheskaia Farmakologiia
|October 7, 2000
PubMed
Summary

Plant adaptogen extracts, including rhodiola, demonstrated significant antiarrhythmic effects in animal models. This protective action involves the activation of both central and peripheral opioid receptors, as shown by naloxone blockade.

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Area of Science:

  • Pharmacology
  • Cardiology
  • Natural Products

Background:

  • Plant adaptogens like Rhodiola, Eleutherococcus, Leuzea, and Ginseng are known for their health-promoting properties.
  • Adrenal arrhythmia is a condition that can be triggered by stress and has significant implications for cardiovascular health.
  • Opioid receptors play a role in various physiological processes, including cardiovascular regulation.

Purpose of the Study:

  • To investigate the antiarrhythmic effects of plant adaptogen preparations.
  • To determine the role of opioid receptors in the antiarrhythmic action of these phytopreparations.
  • To elucidate the specific opioid receptor pathways (central vs. peripheral) involved in the protective effects of Rhodiola extract.

Main Methods:

  • Establishing a model of adrenal arrhythmia in animals.

Related Experiment Videos

  • Prophylactic administration of plant adaptogen preparations (Rhodiola, Eleutherococcus, Leuzea, Ginseng).
  • Utilizing naloxone, an opioid receptor antagonist, to block opioid receptors via intravenous and intracerebroventricular administration.

    • Main Results:

    • Repeated administration of plant adaptogen extracts exhibited a pronounced antiarrhythmic effect in the animal model.
    • Preliminary blockade of opioid receptors with naloxone diminished the protective effects of the phytopreparations.
    • Administration of naloxone demonstrated that the antiarrhythmic effect of Rhodiola extract is mediated through the activation of both central and peripheral opioid receptors.

    Conclusions:

    • Plant adaptogen preparations possess significant antiarrhythmic properties.
    • The antiarrhythmic effects of these adaptogens are, at least in part, mediated by the opioid system.
    • Rhodiola extract's antiarrhythmic action involves the modulation of both central and peripheral opioid receptors, highlighting a novel mechanism of action.