Word: vitamine
(lookup in dictionary)
(lookup stats)
Dates: during 1940-1949
Sort By: most recent first
(reverse)
Discoverer of the mechanism of sulfa-therapy is Bacteriologist Paul Fildes of London. Certain bacteria, he found, mistake the sulfa-drugs for a vitaminlike substance-probably of the vitamin B complex-which they need for growth. Consuming the pseudo-vitamin instead of the real, the bacteria fail to multiply, so that the blood's white corpuscles can easily destroy their limited numbers. How slight is the lethal error which the bacteria make is shown by the similar chemical names: sulfanilamide is para-amino-benzene-sulfonamide; the growth factor is para-amino-benzoic acid...
Solved at last is another great scientific mystery: the structure of the most powerful known chemical-biotin, a rare, growth-promoting vitamin of the B-complex group. Significance: knowledge of its structure may well lead to synthetic manufacture of biotin. So far not more than one-tenth of an ounce of pure biotin has been isolated. Cost: more than...
This fantastic vitamin was isolated in 1936 by Professor Fritz Kögl of Utrecht, Holland but Biochemist Vincent Du Vigneaud of Cornell and his colleagues identified it as an animal vitamin in 1940. The possible molecular patterns ran into millions. Last January, Dr. Du Vigneaud and colleagues were able to announce that the possible molecular patterns had been reduced to five; then when the position of the nitrogen atoms was ascertained, these were...
...Oregon nurse, 37, had corns on her toes since she was 15. Then she began taking large doses of vitamin A-a 100,000-unit capsule daily at bedtime. In three weeks most of her corns disappeared; in two months they were all gone. This surprising cure was reported by Dr. John Vidalin Straumfjord of Astoria, Ore. in Northwest Medicine. Dr. Straumfjord's specialty is studying the importance of vitamin A, which abounds in the livers of Pacific Coast sharks, cod livers, and carrots...
...Straumfjord thinks the cause of corns is more complicated than bad shoes. Vitamin A deficiencies are known sometimes to produce tough or calloused skin. Trouble is that vitamin A, unlike vitamins of the B-group, is not soluble in water and thus is not readily diffused through the body's tissues. The pressure of tight shoes cuts down circulation to irritated areas, deprives them of adequate vitamin A and produces corns-even though the body as a whole may not be A-deficient. Dr. Straumfjord has found that large doses of vitamin A usually get rid of corns even...