SUBJECT INDEX 



913 



Species (continued): 



carotenoids and vitamin A absorption. 

 368 

 intestinal breakdown, 303 

 cholesterol absorption, 260 

 in adrenals, 765, 766 

 in milk, 793, 794 

 cholinesterase, 46-48, 52, 53 

 density of body fat, 558 

 deposition of lipids, 522-524 

 digestibility of fats, 221-229 

 castor oil. 224 

 elaidic acid, 227 

 rapeseed oil, 224, 225 

 tributyrin, 227 

 influence of age on tissue lipids, 578 

 influence of castration on tissue lipids, 



585 

 influence of fasting on liver lipids, 717 

 intestinal structure, 117-120 

 kidney lipids, 728 

 milk lipids, 794, 795, 799 

 muscle lipids, 732-737 

 provitamin A activity of stereoisomers, 



297 

 susceptibility to fatty livers, 639 

 Specific rotation, bile acids, 86, 87 

 Sperm oil, cetyl palmitate in, 253 

 lipase action on, 12 

 oleyl alcohol in, 258 

 Sperm whale liver lipids, 709 

 Spermaceti, cetyl palmitate in, 253 

 Sphingomyelin, biosynthesis, 704 

 in blood, 358, 359, 363 

 in erythrocytes, 384 

 turnover, 395 

 in brain, 745, 746, 756 

 in Gaucher's disease, 702-705 

 in kidney, 728, 729 

 in liver, 710, 711 

 in lung, 788 

 in mitochondria, 605 

 in muscle, 736 



in nervous tissue, 743, 745, 746, 762, 763 

 in Niemann-Pick's disease, 699-701 

 lecithinase D action on, 25 

 Sphingomyelinosis, reticular and histio- 

 cytic (see Niemann-Pick's disease) 



Sphingosine, in cerebrosides, 361 



cerebron-sulfuric acid, 752 



erythrocytes, 385 



pancreas, 788 



sphingomyelin, 746 

 Spinach 



carotene absorption from, 287 

 effect on digestibility, 301 



chlorophyll hydrolysis, 67 



n-hentriacontane in lipids, 278 

 Spinal cord, cholesterol in, 749 



cholinesterase in, 47, 48 



sphingomyelin in, 745, 746 

 Spleen, acetylcholine, 27 



arachidonic acid, 532 



batyl alcohol, 714 



cerebrosides, 748, 770, 771 



choline acetylase, 64 



dihydrosphingosine in, 746 



effect of choline on, 665 



effect on adrenal lipids, 767, 768 



esterase, 14 



in Gaucher's disease, 702-704 



lecithinase, 26 



lipids, 570, 770, 771 

 effect of age, 577 



stearyl alcohol in, 258 

 Sprue, effect of lecithin on vitamin A 

 absorption in, 317 



effect on fat absorption, 240, 243 



fat content in feces in, 189, 344 



non-tropical, 245 



utilization of vitamin A, 318 



plasma tocopherol in, 518 



serum carotene in, 293 

 Squalene, absorption, 279 



distribution, 278, 713, 775 



effect on vitamin A storage, 292 



in sebum, 785 



isolation, 278 

 Standard weight tables, use of, 553, 554 

 Starfish, stearyl alcohol in, 258 

 Steapsin (see Lipase, pancreatic) 

 "Steapsinogen," 6 



Stearic acid, content of fat and digesti- 

 bility, 229 



digestibility, 226, 227 

 effect of Ca and Mg, 236 



