Inhibition of phytoagglutinin potency of Korean vicia unijuga by human urine.

Human urines are often examined for individual identification in medicolegal field, therefore, authors attempted to classify the urines by inhibition of agglutination potency of phytoagglutinin Korean vicia unijuga which is known as a panphytoagglutinin to human red blood cells, and demonstrated that some individuals excrete urine which has ability to interfere with the agglutination potency of vicia extracts. The inhibiting substance appears to be either a protein or a glycoprotein, for it can be eliminated by boiling the urine sample. This substance is not present in human serum, semen and saliva. Presence or absence of the inhibiting substance in the urine has no relation to the individual's blood type and a sample urine spot test yielded a high rate of inhibitory property.