Limaciopsis loangensis is a climbing shrub producing vigorous, twining stems up to 8cm in diameter from a large underground tuber up to 50 - 60cm in diameter[
The plant is sometimes harvested from the wild for local medicinal use.
Tropical Africa - Cameroon, Central African Republic, Gabon, Congo, DR Congo, northern Angola.
Rain-forest, secondary forest; fringing forest and forest relics in savannah[
A dioecious species, both male and female forms need to be grown if fruit and seed are required[
A decoction of the tuber is given to children as a treatment for convulsions[
]. Mixed with a little salt, it is used in the treatment of gonorrhoea[
A decoction of the leaves or twigs is drunk as a treatment for stomach-ache[
About 20 alkaloids have been isolated from various parts of the plant; tests for flavonoids, saponines, tannins and quinones have been negative. Per 100g dry matter the roots contain about 1.5 g alkaloids, the stems 0.3 g, the leaves 0.02 g, whereas the fruits contain no alkaloids. The alkaloids belong to the groups characteristic of Menispermaceae: bisbenzylisoquinolines, aporphines and protoberberines. Isotetrandrine accounts for about 90% of the alkaloids, and minor alkaloids are cycleanine, nor-2-isotetrandrine, N-oxy-isotetrandrine, liriodenine, 8-oxy-palmatine, thalrugoside, thalrugosamine and berbamine[
Isotetrandrine is active against catarrh, and its role in the mitochondrial respiratory chain is being investigated[
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