songorine and hypaconitine

Yougui pills are a classic Chinese medicine that shows significant effects on nerve regeneration and neuroprotection in modern pharmacological studies. With a complex formula, Yougui pills have faced significant challenges in the fields of bioanalysis and pharmacokinetics in animals and human studies. In the present study, a specific and accurate high-performance liquid chromatography with tandem mass spectrometry method was developed and validated for the quantitative determination of the six bioactive components in rat plasma after oral administration of Yougui pills. Chromatographic separation was performed on a C18 column with a gradient elution system. Samples were analysed using positive ion mode with multiple reaction monitoring mode. The assay showed good linearity for all six bioactive components in the dynamic range of 0.50 to 50 ng/mL with acceptable intra- and inter-batch accuracy and precision. The lower limits of quantification were 0.50 ng/mL for all six bioactive components. The method was successfully applied to rat pharmacokinetics after oral administration of Yougui pills. All six bioactive components were detected in rat plasma, including songorine, benzoylhypaconitine, benzoylmesaconitine, neoline, karacoline, and sweroside, while some other target compounds were not detected, such as rhmannioside A, loganin, and cornuside I. After oral administration of Yougui pills at a dose of 2500 mg/kg, all six bioactive components were rapidly absorbed, resulting in t

Topics: Aconitine; Administration, Oral; Alkaloids; Animals; Calibration; Chromatography, High Pressure Liquid; Drugs, Chinese Herbal; Ions; Iridoid Glucosides; Male; Plant Extracts; Quality Control; Rats; Rats, Inbred Lew; Reproducibility of Results; Tandem Mass Spectrometry

We compared analgesic activities of individual alkaloids extracted from Baikal aconite (Aconitum baikalensis): napelline, hypaconitine, songorine, mesaconitine, 12-epinapelline N-oxide. The detected analgesic activity was comparable to that of sodium metamizole. The mechanisms of analgesia were different in diterpene alkaloids of different structure. The antinociceptive effect of atisine alkaloids (12-epinapelline N-oxide, songorine) was naloxonedependent and realized via opioid receptor modulation.

Topics: Acetic Acid; Aconitine; Aconitum; Alkaloids; Analgesics; Animals; Animals, Outbred Strains; Arthritis, Experimental; Dipyrone; Freund's Adjuvant; Injections, Intraperitoneal; Mice; Pain; Plant Extracts; Rats; Seizures; Vocalization, Animal

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.

Topics: Aconitine; Aconitum; Alkaloids; Animals; Cell Proliferation; Cells, Cultured; Colony-Forming Units Assay; Female; Fibroblasts; Mice; Mice, Inbred CBA; Plant Components, Aerial; Plant Extracts; Regeneration; Skin; Wound Healing

Regeneratory activities of Baikal aconite alkaloids were studied on the excision skin wound model. Manifest wound healing effects of songorine, napelline, and hypaconitine were detected. The therapeutic efficiency was based on activation of residual mesenchymal progenitor elements. The development of this phenomenon was explained by the direct effects of alkaloids on precursors and by higher production of growth factors by the skin stromal cells. Songorine exhibited the most pronounced specific activity due to more significant stimulation of progenitor cell differentiation associated with maximum activation of the secretory function of the microenvironment cells.

Topics: Aconitine; Aconitum; Alkaloids; Animals; Animals, Outbred Strains; Cell Differentiation; Cellular Microenvironment; Diterpenes; Intercellular Signaling Peptides and Proteins; Male; Mesenchymal Stem Cells; Mice; Regeneration; Skin; Stromal Cells; Wound Healing; Wounds and Injuries