In the 40s two scientists discovered a powerful healing effect of cortisone, but it soon proved difficult to produce and above all very expensive, so it was decided to look for in plants.
The STROPHANTHUS SARMENTOSUS, a plant that was found in equatorial Africa, was once considered the best candidate for this purpose and in fact, after some research, it was discovered that contained corticosteroids. In 1936 Japanese researchers Instead, they discovered the diosgenin, a substance that proved to be a useful precursor in the preparation of corticosteroids, an Asian plant, the Dioscorea TOK
NOW.
NOW. Its effect, however, was not immediately appreciated and it was not until the '50s, when the same substance was found in southern Mexico in much greater quantities in various species of Dioscorea mexicana.
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