300 



Scientific Proceedings (116). 



Table I. 



Cholesterol and Cholesterol Esters in Human Blood. 

 Mg. per ioo c.c. 



Case 

 No. 



Wasser- 



mann 

 Reaction. 



Total. 



As Esters. 



Diagnosis. 







mg. 



mg. 



Per 













L-ent. 





2 



negative 



190 



70 



36.8 



Normal. 



8 



negative 



223 



76 



34-0 





20 



negative 



166 



58 



34-9 





139 



negative 



183 



69 



377 







negative 



I9O 



62 



31.0 





Average. 









34-8 





213 



+ + + + 



215 



47 



21.8 



Syphilis 01 heart and blood vessels. 



102 



+ + + + 



143 



25 



17.4 





119 



+ + + + 



178 



46 



2^.8 



** " " " " '* 



103 



4-4- + + 



143 



29 



20.2 





104 



+ + + + 



174 



36 



20.6 



<« << <« << U It 



118 



+ + + + 



223 



46 



20.6 



<< 11 (< <( II fl 



116 



+ + 



192 



59 



30.6 



« II 



207 



+ + + + 



190 



47 



24.7 



II 4. II << I. << 



Average. 









22.7 





203 



+ + + + 



175 



46 



26.2 



Syphilis of central nervous system. 



166 



+ + + + 



208 



44 



21. 1 





106 



+ + 4. 



217 



55 



24.2 





137 



+ + + + 



I96 



35 



17.8 





141 



+ + + + 



192 



22 



II.4 





Average. 









20.1 





208 



+ + + + 



208 



44 



21.2 



Syphilis with skin manifestations. 



38 



+ + + + 



234 



60 



25.6 





179 



+ + + 



185 



31 



16.7 





Average. 









21.2 





202 



+ + + + 



230 



82 



35-6 



No physical signs of syphilis. 



204 



+ + + + 



139 



36 



28.5 





212 



+ + + + 



190 



58 



30.5 





Average. 







31-5 





The cholesterol and cholesterol ester content has also been 

 studied in a series of rabbits' blood before and after they have de- 

 veloped a four positive Wassermann reaction as a result of experi- 

 mental inoculation with spirochete pallida. The results of these 

 experiments are given in Table II. Of the seven rabbits studied 

 all but one show a marked reduction in the amount of cholesterol 

 esters. The average percentage of cholesterol combined as esters 

 in the rabbits before inoculation is 34.3 per cent, and after de- 



