Medical and Biochemical Application of Infrared Absorption Spectra. III. Studies on Biological Lipids by Infrared Spectra. (1). Infrared Spectra of Total Lipids in Diabetes Serum

1) About 700 infrared spectra were examined of total lipids in the sera of diabetes patients, and a new and simple classification of these spectra was devised from the ratio of relative intensities of their absorptions. 2) It was found that there is a close relationship between the quantity of total lipids and their spectral types, and between the spectral types and serum lipoprotein index values. 3) It was found that diabetes is classified into several types from the type of these spectra and that infrared spectra would be valuable means in diagnosis and in judging therapeutic effect of pharmaceutics.