Word: tocopherols
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...Tocopherol (vitamin E) and methyl naphthoquinone (equivalent of vitamin K) complete the list of the vitamins that are available from chemical manufacture. They are still little used. The former is essential for reproduction in rats, so that it has become known as the sex vitamin, but doctors are still uncertain whether it has any such value in human beings. The latter is unique: it is not vitamin K but is equally effective in decreasing the clotting time of blood...
...alpha tocopherol, is found in green leaves, wheat germ...
...Vitamin E (alpha-tocopherol): for sterility, muscle weakness, diseases caused by degeneration of nerves...
...vitamin G, another newcomer as factor Y. Two relatives of the C tribe are known as J and P. Most practical name-calling, so far as scientific convenience is concerned, would be to recognize each vitamin by its chemical name. Thus vitamin E would be known as alpha tocopherol, C as ascorbic acid, B² as riboflavin. But since the word vitamin is as popular with laymen as "calory" once was, chemists will probably continue in their alphabetical way until they bump into...
...crystalline form. Vitamin E regulates cell division, increases the number and strength of the offspring, promotes growth. Lack of this vitamin results in malnutrition of the embryo and abortion in the female, destruction of germ cells in the male, muscular paralysis in the young. Isolation of Vitamin E (alpha tocopherol) from natural oils is difficult and expensive, but last winter Chemist Paul Karrer of Switzerland synthesized it from coal tar. Dr. Evans promptly fed alpha tocopherol to sterile rats, and this week he told the International Physiological Congress at Zurich, Switzerland, that all 200 of the rats gave birth...