[Urinary excretion of thioamine compounds in oncological patients].

Using iodine-azide method, it was possible first to quantify the concentration and amount of the excretion of thiamine compounds in the diurnal urine of patients. The concentration of thioketones in human urine is shown to be 11--15 mg equivalents of thiourea per 1 ml urine, that is an order of magnitude lower than the threshold of sensitivity of the reaction with selenonic acid. It was found that the amount of thioketones excretion per day and their concentration in 1 ml of oncological patients' urine statistically do not differ from the corresponding values in the urine of patients with non-oncological diseases.