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n.1.(Chem.) A poisonous alkaloid of bitter taste extracted from the leaves and seeds of the European yew (Taxus baccata). Called also taxia. The usual preparation is a mixture of compounds. Taxine A has the chemical formula: C35H47NO10.
References in periodicals archive ?
Chemical constituents: Contains paclitaxel, taxine A and B, taxicatin, milossine, and ephedrine.
Every bit of the English yew has toxic taxine alkaloids except the berry flesh.
Some animal species (horses) do not tolerate its use, due to taxine (a toxic secondary metabolite), but other ruminants (sheep, goats) and wild animals (deer, and roe deer) can browse the yew, consuming green shoots, which could finally lead to the death of the plant.
The leaves and seeds of Taxus or yew trees contain taxine alkaloids with both sodium and calcium channel blocking activity and digoxin toxicity-like effects, particularly a predisposition to hyperkalemia and ventricular tachydysrhythmias.
The alkaloid taxine is very poisonous and is found in highest quantities in Japanese and English yew (T.