Biological Assimilation and Dissimilation of Nitrogen 537 



Table i 



Effect of B ^-deficiency combined with isonicotinylhydrazide intoxication on 



transamination and on the synthesis of amino acids in rat liver homogenate 



(Braunshtein & Azarkh [i8]) 



(Averages of values obtained in experiments with 4 control and 

 6 experimental animals) 



Table 2 



Effect of fluorocitrate {EC) on the synthesis of amino acids from ammonia and 

 pyruvate in stabilized rat liver homogenate 

 (Braunshtein & Azarkh [19]) 

 (Average values) 



Samples containing 200 mg homogenized liver in a volume of 3 ml were 

 incubated i hr without and with pyruvate (80 //moles) and in the presence 

 or absence of supplements of FC (10 //g), and glutamate (20 //moles). 

 The A values show the differences between the samples incubated with 

 pyruvate and the controls, respectively, between the pyruvate samples 

 without FC and in its presence. 



