Course treatment with diterpene alkaloids of Aconitum baicalense in mice reduced the time of immobilization in the tail suspension test and produced an antiexudative effect in mouse model of serotonin-induced edema. In the open field test, application of alkaloids did not change the total motor activity, orientation and exploratory behavior, and emotional reactions of animals. Experimental data suggest that diterpene alkaloids of Aconitum baicalensis exhibit antidepressant properties, possibly due to modulation of sensitivity to serotonin.
We compared anti-inflammatory activity of individual diterpene alkaloids isolated from Aconitum baikalense (napelline, songorine, hypaconitine, mesaconitine, 12-epinapelline N-oxide) under conditions of acute inflammation of different genesis. The tested substances showed high antiexudative activity comparable with that of sodium diclofenac. Unlike nonsteroidal anti-inflammatory drugs, diterpene alkaloids exerted no ulcerogenic effect.
The effects of complex extract from Aconitum baikalense on reparative regeneration of a plane dorsal skin wound were studied. Treatment with Aconitum baikalense tincture stimulated reparation and skin regeneration. The effects of the Aconitum baikalense alkaloids on functional activity of fibroblast precursors were studied in vitro by cultural methods. Mesaconitine, hypaconitine, songorine, napelline, and 12-epinapelline N-oxide significantly stimulated the growth of colonies from fibroblast precursors. This indicated direct stimulation of fibroblasts by aconite alkaloids, which could be a mechanism of reparative activity of the complex extract.
Antiinflammatory effects of water-alcohol extracts and sum of alkaloids from the aerial part of delphinium under conditions of immune inflammation caused by Freund's complete adjuvant were comparable to activity of orthophen, a classical antiinflammatory drug. Normalizing effects of the studied extracts on hematological and biochemical parameters were demonstrated.
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