SUBJECT INDEX 



Goy 



biotin and, 577, 57S 



in citrulline synthesis, 581 



decarboxylation of, 585 



requirement for, 456 



vitamin Bu and, 475, 484-485 

 Ox:ilic acid, 185, 203, 20 \, 225, 240, 313. 



376 

 Oxalosuccinic acid, 



biotin and, 577-578 

 Oxamide, 187 

 2-Oxo-4-imidazolidinecai)r()ic acid, 



as biotin inhibitor, 567 

 Oxybiotin, 580-586 



biological activity of, 559-562 



differentiation from biotin, 561 



in reversal of inhibition, 567 



sulfonic acid analogs of, 567-570 



sjnthesis of, 551-552 

 Oxj-tetronic acid, 197 

 0\sters, 



vitamin B12 in, 465 



Pad-plate assaj-, 



for vitamin Jii> , 468-470 

 Palmitoyl ascorbic acid, 106 

 Pancreas, 



in scurvy, 295-296 

 Pancreatic lipase, 171, 174 

 Pancreatin, 556 



in vitamin Iii2 assay, 471 

 Pantothenic acid, 385, 611 



ascorbic acid and, 329-330 



relation to biotin, 601-602 



vitamin B12 and, 512-513 

 Papain, 397, 461, 529, 556 



ascorbic acid and, 238, 239 

 Papain-takadiastase, 



in vitamin B12 assay, 471 

 Pectin, 200, 255 

 Pectinase, 



effect on collagen, 273-274 

 Penicillin, 465 



effect in anemia, 499 



vitamin A and, 42 

 Pentoses, 214 

 Pepsin, 528, 529 

 Perhydrovitamin A, 32 

 Perifollicular keratosis, 353 

 Perinaphthindanetrione hydrate, 



in ascorbic acid assaj-, 259 



I'ernicious anemia, 397, 425, 47(1 



ascorbic acid and, 371 



effect of thymidine on, 4S1 



metabolic defect in, 492-493 



toxic agents in, 498-499 



vitamin Bi- and, It.'i- 440 

 Porosis, 444 



in biotin deficiency, 602 



in vitamin B12 deficiency-, 490 

 Peroxidase, 230, 279 



in ascorbic acid oxidation, 225-226 

 Peroxides, 61, 105, 466 

 PGA, see Folic acid 

 Phagocytosis, 388 



ascorbic acid and, 341-342, 392 

 Phenanthrenequinone, 537 

 Phenolindophenol, 181 

 Phenols, 



in ascorbic acid oxidation, 225 



in pernicious anemia, 498 

 IMienylalanine, 367, 384, 430 



deamination of, 583 



oxidation of, 237, 313-315 

 Phenjlenediamine, 227 

 o-Phenylenediamine, 187, 205 



in vitamin B12 assaj', 449 

 p-Phenylenediamine, 226 

 Phenjlhydrazine, 185, 187 

 Phenylhydrazine hjdrochloride, 



in anemia production, 444 

 Phosphatase, 124, 223, 242, 324, 380, 425 



ascorbic acid and, 322 



in ascorbic acid assay, 244, 384 



in scurvy, 239-241, 331, 365 

 Phosphate, 



ascorbic acid and, 392 

 Phosphoascorbic acid, 309, 322 

 Phosphocreatine, 



in scurvy, 322-323 

 Phosphoglyceric acid, 230 

 Phos])holii)ids, 124, 319, 323, 333 



biotin and, 607 



oxidation of, 311 



in scurvy, 318 

 Phosphomolybdic acid, 248 

 Phosphorus, 124, 125, 307 



ascorbic acid and, 322-323 



in scurvy, 365 



vitamin B,, and, 4(K), 405, 443 

 Ph(>8])horylaso, 



in scurvy, 331 



