SUBJECT INDEX 



1061 



Turnover {continued): 

 in laying bird, 58 

 in liver, 52, 62, 190 

 in muscle, 55 

 in neoplastic tissue, 59 

 in plasma, 57, 62 

 relation to lipotropic action, 59, GO 

 Tween 20, antibacterial action, 868 

 Tween 40, and carotene absorption, 426 

 and oleic acid in bacteria, 887-888 

 antibacterial action, 868-870 

 Tween 60, bacterial action, 868, 895 

 Tween 80, and oleic acid in bacteria, 887- 

 888 

 antibacterial action, 868-870, 895 

 effect on vitamin A absorption, 436 

 Two-carbon fragment, as a building stone 

 of fatty acids, 10-12, 20, 25-27, 137, 

 254 

 from acetoacetate, 168 

 from acetone, 182 

 from leucine, 132, 133 

 from pyruvate, 259, 261 

 in acetoacetate formation, 21, 101, 102, 



133, 258 

 in Krebs cj'cle, 172 

 reactions of, 27 



types in fatty acid oxidation, 86, 87 

 Tyrosine, effect on phospholipid turnover, 

 64 

 ketogenicity of, 135, 136 



U 



Ultraviolet irradiation, and antirachitic ac- 

 tivity, 623, 624 



in vitamin D production, 639-641 

 Undecanoic acid, 97 



ketone bodies from, 128 



cj-oxidation of, 87 

 10-Undecenoic acid, 97 

 Undecylic acid, acetate form, 259 



glycogenesis from, 214 

 Undecylsuccinate, utilization of, 309 

 Undecynoic acid, metal)olism of, 98, 99 

 Unsaturated fatty acids, a,^-, 92-100 



and intestinal synthesis of riboflavin, 881 



antagonism toward carotene, 529 



Unsaturated fatty acids {continued): 

 antibacterial action, 866-868, 870, 871 

 as growth factors for bacteria, 888, 890- 



892 

 combination with cholesterol, 371 

 conjugated, for phospholipid synthesis 



study, 50 

 detection of, 92 

 effect of methylene blue, 709 

 effect of tocopherol, 709 

 effect on diabetes, 863, 864 

 on fat digestibility, 98 

 on tocopherol deficiencj', 710, 714, 



729, 730, 732 

 on tocopherol requirement, 746 

 hydrogenation, 99, 100, 192 

 in liver, 190-192 

 in molds, 874 

 interconversions of, 188 

 ketogenicity, 126 

 metabolism, 75, 76, 183-189 

 occurrence, 91 

 oxidation, effect of vitamin C, 201, 202 



enzjmes involved, 100-119 

 synthesis, 26, 42 



effect of irradiation, 39 

 with triple bonds, 98, 99 

 Unsaturated fatty-acyl-CoA hydrase, 107 

 Uracil, as formyl donor, 281 

 Urea-adduct method, for preparation of 



unsaturated fatty acids, 787, 788 

 Ureides of fattj' acids, 92 

 Uric acid, acetate in synthesis of, 261, 271, 

 279 

 as formyl donor, 281 

 formate in synthesis of, 279, 282-284 

 from histidine, 286, 287 

 Urine, acetic acid in, 254 

 adipic acids in, 299, 310-312 

 amides in, 317 

 benzene in, 329 



branched-chain acids in, 296, 298 

 Ca in, 665 



carcinogens in, 357, 358 

 carotenoids in, 554, 555 

 cholesterol in, 401, 414 

 dicarboxylic acids in, 87-89, 307 312, 

 313,317 



