538 



Scientific Proceedings (132) 



be responsible for the increased non-protein nitrogen and urea 

 which he found in the blood of fasting rabbits. A similar con- 

 dition seems to obtain in fasting rats leading to a relative con- 

 centration of the blood as contrasted with its dilution in the 

 fasting pigeon. In this connection the results of Arima 1 on 

 human blood are of interest in showing that the non-protein 

 nitrogen in various forms of beri-beri is 32 to 67 mg. per 100 c.c. 



AVERAGE ANALYSES OF EATS ' BLOOD 





Number 



Per cent. 



Total 



Total non- 



Urea 



Preformed 



Total 





Condition 



of 



los3 in 



solids 



protein 



nitro- 



Creatinine 



Crea- 



Creatine 





animals 



weight 



per cent. 



nitrogen 



gen 





tinine 













milligrams per 100 c.c. 



Normal 



11 





21.1 



41 



21 



1.1 



2.3 



1.2 



Without B . 



17 



20-44 



21.5 



39 



19 



1.3 



3.0 



1.7 



Fasting 



10 



22-37 



23.2 



67 



40 



1.3 



2.8 



1.5 



Fasting with 



















forced water 



















intake 



5 



28-37 



21.2 



39 



18 









269 (2229) 



Antagonistic effects of insulin and thyroxin. 



By AARON BODANSKY (by invitation). 



[From the Department of Physiology and Biochemistry, Cornell 

 University Medical College, Ithaca, N. Y.] 



Continued subcutaneous administration of thyroxin is known 

 to produce hyperglycemia. In normal sheep the blood-sugar is 

 raised from about 70 mg. to over 80 mg. 



A single subcutaneous administration of thyroxin has only a 

 slight effect on the blood sugar. 



A single subcutaneous administration of insulin (10 units) 

 produced no demonstrable effect within two hours after injec- 

 tion. 



Intravenous administration of varying amounts of insulin (5 



i Arima, E. } 1910, abstracted in Clicm. Abstr., 1918, xii, G4. 



