[The content of thiamine, its coenzyme form and activity of thiamine diphosphate-dependent enzymes in ontogenesis].

In experiments on rats of different age it is shown that the lowest content of thiamine and its phosphoric ethers in the liver is typical of the early periods of embryonal development and the highest one of the first days after birth. A direct dependence is established between the content of thiamine, its coenzyme form, enzyme of thiamine diphosphate synthesis (thiamine pyrophosphokinase) and thiamine diphosphate-containing enzyme (transketolase) in the rat liver in different periods of ontogenesis.