Studies on metabolism of thiamine chloride ester monophosphate of bis-D-glucosamine. II. Effect of TCMPG in vitamin B1-deficient rats.

In order to investigate the metabolism of thiamine chloride ester monophosphate of bis-D-glucosamine (TCMPG) urinary excretion, blood levels and tissue content of thiamine in vitamin B1-deficient rats were measured after intraperitoneal injection of this compound or of thiamine monophosphate or of a mixture of thiamine monophosphate and glucosamine. The greater retention and the higher levels of vitamin observed in the blood and in the tissues of animals treated with TCMPG compared with the control rats confirm the hypothesis that a more efficient utilization of vitamin B1 is obtained by the organism when it is administered salified with glucosamine.