PRESENT STATUS OF VITAMINS IN RELATION TO EIGHTH NERVE AND CONDUCTION DEAFNESS

Abstract

I 1 have described elsewhere the effects of the entire vitamin B complex, prepared from California rice bran, on the eighth nerve and have stated that its use on human beings was prefaced by the finding of definite evidence of nerve degeneration in rats, guinea pigs and chicks that had been fed diets deficient in one or another component of the B complex. The rats and guinea pigs had been obtained from Prof. Herbert M. Evans' Institute of Experimental Biology, University of California, and the chicks from Dr. T. H. Jukes, of the division of poultry husbandry of the College of Agriculture, University of California, at Davis, Calif. The ears of these animals were studied histologically by Dr. W. P. Covell, working under the Coleman grant at the George Williams Hooper Foundation for Medical Research, University of California Medical School. His studies covered not only B 1 , riboflavin B 6 the Jukes filtrate