-19^2- 



and haptenlc in structure but nontoxic; the toxic polypeptide 

 fraction, non-antlgenic. The last-named fraction gives intense 

 color reactions for tyrosine and arginine. It may be this type 

 of fraction which produces tumor hem.orrhage. 



364. ZAHL, P. A. and HTJTNER, S. Ho 



The action of bacterial toxins on tumors. II. Effect of sulfani- 

 lamide on toxin-induced hemorrhage 



Proc. SoG. Exper. Biol, Med, 51:285-287, 19^2 



The hemorrhagic factor found in Salmonella endotoxin is believed 

 to be a component of the antigen and to exhibit parallel 

 lethal effects in a manner common to most negative bacteria. 

 The lethal activity is reduced in vivo by sulfanilamides, but 

 the mode of action of such protection is not understood. It 

 may. like ascorbic acid, affect the threshold of vascular re- 

 sistance or participate in a toxlcity-reducing mechanism. 



- 1 9 4 3 - 



365. DELAUNAY, A, 



Recherche sur la phagocytose, V, Chimotactisme leucocytaire 

 et toxines microbiennes (Research in phagocytosis. V. Leuko- 

 cyte cheraotactism and bacterial toxins) 



Rev. Immunol, 8; 30-45, 1943 



Bacterial toxins with the characteristics of proteins were iso- 

 lated from staphylococci , corynebacterla of the pseudotubercle 

 type, and organisms of diphtheria and tetanus. On injection, 

 they inhibited cheraotaxis of the leukocytes, preventing phago- 

 cytosis. 



366. DELAUNAY, A, 



Le pouvoir leucopeneant de I'antigene glucido-llpidique du 

 Bacille d ' Eberth et la leucopenla dans la filbre typhoide 

 (The leukopenic ability of the glucldo-llpid antigen of E. 

 typhosa and leukopenia in typhoid fever) 



Compt. rend. See, blol, 137:540, 1943 



