Word: centronervin
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Dates: during 1920-1929
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...recent work, on brain extracts, reached the general public by journalistic interpretation of a weighty article in last month's issue of Medizinische Klinik (Berlin). He de scribed very technically how he crushed the brains of tree frogs and from the juice se cured an extract which he called centronervin. That extract, when injected into the lymph systems and thence into the blood stream of live frogs stimulated them remarkably. It toned up their muscles, made them stronger, especially it seemed to speed up their reactions. Treated frogs saw flies more quickly than normal frogs, caught more of them. Brain...
Steinach has "certainly not" tried centronervin on humans. "It is a tremendous field and only sheer ignorance could imagine that such a problem could be solved by a few experiments on tree frogs...
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