[State of cardiac pyridine nucleotides and flavoproteins during preservation with a 0.5% formalin solution]

Possibilities of formaldehyde interaction with the respiratory link of mitochondria were studied. For this purpose the fluorescent technique was used to examine pyridine nucleotides and flavoproteins of the conserved heart. The data obtained indicate that the action of formaldehyde on oxidation myocardial cell metabolism appears to be related to the inhibition of the glycolytic apparatus.