niacinamide has been researched along with tryptophan in 310 studies
| Timeframe | Studies, this research(%) | All Research% |
|---|---|---|
| pre-1990 | 235 (75.81) | 18.7374 |
| 1990's | 22 (7.10) | 18.2507 |
| 2000's | 20 (6.45) | 29.6817 |
| 2010's | 25 (8.06) | 24.3611 |
| 2020's | 8 (2.58) | 2.80 |
| Authors | Studies |
|---|---|
| Barnes, JC; Bradley, P; Day, NC; Fourches, D; Reed, JZ; Tropsha, A | 1 |
| Curzon, G; Fernando, JC; Joseph, MH | 1 |
| MacSweeney, DA | 1 |
| Badawy, AA; Evans, M | 2 |
| Annable, L; Chouinard, G; Sourkes, TL; Young, SN | 3 |
| Caspary, WF | 1 |
| Bühlen, E; Bühner, R; Byrd, DJ; Kochen, W | 1 |
| Kajimoto, M; Nakagawa, I; Oguri, S; Sasaki, A; Sasaki, M | 1 |
| Neale, G; Swain, CP; Tavill, AS | 1 |
| Kimmig, J; Kreysel, HW; Meyerhoff, K | 1 |
| Tjälve, H; Wilander, E | 1 |
| Curzon, G; Fernando, JC | 1 |
| Ash, RP; Deranleau, DA; Herriott, JR | 1 |
| Brown, RR; Nielsen, HR; Wolf, H | 1 |
| Behal, FJ; Garner, CW | 1 |
| Allegri, G; Costa, C; Crepaldi, G; De Antoni, A; Muggeo, M | 4 |
| Beisel, WR; Dinterman, RE; Powanda, MC; Wannemacher, RW | 1 |
| Allegri, G; Allegri, L; Costa, C; De Antoni, A; Strauch, P | 1 |
| Altamura, AC; Sacchetti, E; Smeraldi, E; Zibetti, A | 1 |
| Brenner, A; Wapnir, RA | 1 |
| Annable, L; Chouinard, G; Kiriakos, RZ; Sourkes, TL; Young, SN | 1 |
| Dickerson, JW; Labadarios, D; McKenzie, DY; Parke, DV | 1 |
| Annable, L; Chouinard, G; Jones, BD; Young, SN | 1 |
| Grätz, R; Haase, J; Kröger, H; Museteanu, C | 2 |
| Beaudoin, AR | 1 |
| Streffer, C | 3 |
| Barton, RA; Chaffin, WL; Jacobson, EL; Jacobson, MK | 1 |
| Coan, CR; Deranleau, DA; Hinman, LM | 1 |
| Bender, DA; Njagi, EN | 2 |
| Atherton, DJ; Bender, DA; Bridges, NA; Clayton, PT; Malone, M; Milla, PJ | 1 |
| Bender, DA | 4 |
| Matsuo, H; Shibata, K | 1 |
| Butler, IJ; Jonas, AJ | 1 |
| Moreno, FS; Vannucchi, H | 1 |
| Grahn, H; Grätz, R; Kröger, H | 2 |
| Blom, W; Huijmans, JG; Sanders-Woudstra, JA; van den Berg, GB | 1 |
| Neumann, R; Pohl-Markl, H; Rappold, E | 1 |
| Carpenter, KJ; Cook, NE | 1 |
| Bender, DA; McCreanor, GM | 1 |
| Bender, DA; Olufunwa, R | 1 |
| Furuya, T; Orihara, T; Tochikubo, K; Tsuchiya, K | 1 |
| Kitos, PA; Kushaba-Rugaaju, S | 1 |
| Lester, G | 1 |
| Oguri, S | 3 |
| Maayan, ML; Rosenberg, IN | 1 |
| Sawyer, B; Slater, TF; Sträuli, U | 1 |
| Brown, RR; Madsen, PO; Price, JM; Wolf, H | 2 |
| Brown, RR; Hankes, LV; Linkswiler, H; Price, JM; Swan, P; Yess, N | 1 |
| Berjak, P; Reid, JV | 1 |
| Krakoff, IH | 1 |
| Brown, RR; Hankes, LV; Lippincott, S; Schmaeler, M | 2 |
| Lojkin, ME | 2 |
| Neujahr, HY | 1 |
| Arakawa, T; Morikawa, T; Tada, K | 1 |
| Bueno, J; Ginther, R; Himwich, HE; Spaide, J; Tanimukai, H | 1 |
| den Dooren de Jong, LE | 1 |
| Boucek, RJ; Dietrich, LS; Hlavackova, V | 1 |
| Kitabatake, M; Nakao, T; Oyanagi, K; Takagi, M | 1 |
| Pasquariello, G; Tenconi, LT | 1 |
| De Lange, DJ; De Villiers, LS; Du Plessis, JP; Kruger, H; Prinsloo, JG | 1 |
| Kelsay, J; Linkswiler, H; Miller, LT | 1 |
| Davis, W; Kibbey, AH | 1 |
| Aksenova, OV; Cherntsvoa, TA; Ivanova, VD | 1 |
| Kalyanpur, SG; Naik, SR; Sheth, UK | 1 |
| Jepson, JB | 1 |
| Bowman, AL; Hogue, DE; Travis, HF; Warner, RG | 1 |
| Pogodina, ON | 1 |
| Brown, RR; Price, JM; Rose, DP | 1 |
| Brown, RR; Hankes, LV; Schiffer, L; Schmaeler, M | 1 |
| Gibbs, DF | 1 |
| Hansen, JD; Truswell, AS; Wannenburg, P | 1 |
| Balcerzak, SP; Graff, KS; Mengel, CE | 1 |
| Milne, MD | 1 |
| Fridkin, M; Shinitzky, M | 1 |
| Bonollo, L | 1 |
| Kanig, K; Oesterle, W | 1 |
| Adrian, J | 2 |
| Brown, RR; Leklem, JE; Woodford, J | 1 |
| D'Alessio, G; Josse, J | 1 |
| Crawford, MA; Hansen, IL; Lopez, A | 1 |
| Brown, RR; Price, JM; Rose, DP; Wolf, H | 1 |
| Jameson, D; Josephs, JA; Parker, CM; Sprince, H | 1 |
| Bianchi-Donnasibilla, L; Curró, F; Luvara, A | 1 |
| Adrian, J; Carnovale, E; Lunven, P | 1 |
| Brown, RR; Burney, SW; Friedell, GH; Price, JM | 1 |
| Asatoor, AM; Navab, F | 1 |
| Hardy, J; Heeley, AF; Heeley, ME; Soothill, JF | 1 |
| Kanig, K | 1 |
| Galamon, T; Podoska, M; Rozniecki, J; Sosnowski, W | 1 |
| Guire, P | 1 |
| Brown, RR; Price, JM; Yess, N | 1 |
| Brown, RR; Hankes, LV; Leklem, JE; Schmaeler, M | 1 |
| Brune, GG; Brune, RM; Wiskemann, A | 1 |
| Leklem, JE | 1 |
| Brown, RR; Hankes, LV; Leklem, JE; Mekel, RC | 1 |
| Bleandonu, G; Boye, J | 1 |
| Curzon, G; Green, AR | 1 |
| Bradshaw, RA; Deranleau, DA | 1 |
| Berg, CP; Loh, HH | 1 |
| Harper, AE; Pant, KC; Rogers, QR | 1 |
| Gläsel, E; Moldenhauer, E; Moldenhauer, W; Pietsch, P | 1 |
| Alperovitch, A; Bohuon, C; Chabenat, C; Flamant, R | 1 |
| Castiello, RJ; Lynch, PJ | 1 |
| Holmes, LG; Robbins, FM | 2 |
| Consolazio, CF; Johnson, HL; Krzywicki, HJ; Witt, NF | 1 |
| Kong, YL; Smith, IM | 1 |
| Birnbaum, D; Böttcher, F; Samsonova, IA | 1 |
| Herken, H; Keller, K; Kolbe, H; Lange, K | 1 |
| Houpt, JB; Hunt, M; Ogryzlo, MA | 1 |
| Kajimoto, M; Nakagawa, I; Sasaki, A; Suzuki, T; Takahashi, T | 1 |
| Bradshaw, RA; Frazier, WA; Hogue-Angeletti, RA; Sherman, R | 1 |
| Hamaguchi, K; Ikeda, K | 2 |
| Chiancone, FM; Mainardi, L; Tenconi, LT | 1 |
| Wolf, H | 2 |
| Aĭzenberg NN+AIZENBERG, NN; Korabel'shchikova, NI; Lesik, OV | 1 |
| Basu, TK; Bates, C; Raven, RW; Williams, DC | 1 |
| Akarte, NR; Shastri, NV | 1 |
| Brauer, I; Bühner, R; Byrd, DJ; Kochen, W; Trefz, F | 1 |
| Kuntze, I; Schievelbein, H | 1 |
| Gholson, RK; Shimoyama, M; Yamaguchi, K | 1 |
| Greenbaum, AL; Pinder, S | 1 |
| McGinty, F; Rose, DP | 1 |
| Hayaishi, O; Ichiyama, A; Ijichi, H | 1 |
| Ichiyama, A; Nakamura, S; Nishizuka, Y | 1 |
| Sakamoto, H; Shimoyama, M; Takeuchi, T; Ueda, I; Yamaguchi, K | 1 |
| Amar, A; Bekierkunst, A; Flechner, I | 1 |
| Braidman, IP; Rose, DP | 1 |
| Shigehisa, S; Shimoyama, M; Ueda, I | 1 |
| Clerivet, A; Ragot, J | 1 |
| Brown, RR; Hankes, LV; Jansen, CR; Leklem, J; Mekel, RC | 1 |
| Scholz, G; Streffer, C | 1 |
| Audette, RC; Purvis, JL; Worthen, LR; Youngken, HW | 1 |
| Grunicke, H; Keller, J; Liersch, M | 1 |
| Bradshaw, RA; Frazier, WA; Hogue-Angeletti, RA | 1 |
| Gross, D | 1 |
| Cho-Chung, YS; Pitot, HC | 1 |
| Ceauşi, G; Dumitrescu, C | 1 |
| Gholson, RK | 1 |
| Greengard, P; Kalinsky, H; Manning, TJ; Zak, SB | 1 |
| Kimura, T; Murata, K | 1 |
| Masana, Y; Nakagawa, I; Suzuki, T; Takahashi, T | 1 |
| Cross, DG; Fisher, HF; McGregor, LL | 1 |
| Grätz, R; Kröger, H | 3 |
| Kennedy, B; Leonard, BE | 1 |
| Møller, SE | 1 |
| Dutra de Oliveira, JE; Mello de Oliveira, JA; Vannucchi, H | 1 |
| Motooka, K; Murata, K; Shibata, K | 1 |
| Bender, DA; Magboul, BI; Wynick, D | 1 |
| Fujii, K; Imai, H; Nasu, S; Sakakibara, S; Ueda, I; Yamaguchi, K | 1 |
| Sano, K; Shin, M; Umezawa, C | 1 |
| Bender, DA; Magboul, BI | 1 |
| Forchette, CA; Patterson, JI | 1 |
| Byrne, DH; Kitos, PA | 1 |
| Bender, DA; Totoe, L | 1 |
| de Oliveira Martin, C; Ventura, MM | 1 |
| Fuji, M; Fukumoto, Y; Nagamatsu, A; Shimeno, H | 1 |
| Kamat, JP; Mhatre, NA; Narurkar, LM; Narurkar, MV | 1 |
| Brown, RR; Harper, AE; Linkswiler, H; Patterson, JI | 1 |
| Freundlich, E; Statter, M; Yatziv, S | 1 |
| Aronson, JK; Curzon, G; Green, AR; Woods, HF | 1 |
| Harper, AE; Henderson, LM; Horwitt, MK | 1 |
| Miyazaki, M; Sanada, H; Takahashi, T | 1 |
| Annable, L; Chouinard, G; Young, SN | 1 |
| Baxter, DW; Hoyte, K; Kiely, ME; Lal, S; Sourkes, TL; Young, SN | 1 |
| Krishnaswamy, K; Narasinga Rao, BS | 1 |
| Harper, AE; Patterson, JI | 2 |
| Egashira, Y; Nakazawa, A; Ohta, T; Sanada, H; Shibata, K | 1 |
| Baker, DH; Oduho, GW | 1 |
| Bielenberg, J | 1 |
| Dame, AJ; Jacobson, EL; Jacobson, MK; Pyrek, JS | 1 |
| Hayakawa, T; Kondo, T; Mushiage, M; Shibata, K; Tsuge, H | 1 |
| Hayek, G; Jacomelli, G; Micheli, V; Pescaglini, M; Pompucci, G; Rocchigiani, M; Sestini, S | 1 |
| Mench, JA; Shea-Moore, MM; Thomas, OP | 1 |
| Kondo, T; Marugami, M; Shibata, K; Umezawa, C | 1 |
| Kondo, T; Shibata, K; Shimada, H | 1 |
| Egashira, Y; Komine, T; Ohta, T; Sanada, H; Shibata, K | 1 |
| Shibata, K; Toda, S | 1 |
| Kondo, T; Miki, A; Shibata, K | 1 |
| Bahnson, BJ; Chin, JK; Colby, TD; Goldstein, BM; Klinman, JP | 1 |
| Pasmans, SG; Preesman, AH; van Vloten, WA | 1 |
| Grant, RS; Kapoor, V; Matanovic, G; Passey, R; Smythe, G | 1 |
| Egashira, Y; Isagawa, A; Komine, T; Ohta, T; Sanada, H; Shibata, K; Yamada, E | 1 |
| Devasagayam, TP; Kamat, JP | 1 |
| Hubbard, PA; Kasper, CB; Kim, JJ; Paschke, R; Shen, AL | 1 |
| Fukuwatari, T; Ishikawa, A; Kodama, N; Nishimuta, M; Okamoto, H; Shibata, K; Yoshitake, Y | 1 |
| COSTABILE, L; SCALA, E; SCARDI, V; VIRGILIO, A | 1 |
| CIOTTI, MM; GOLDIN, A; HUMPHREYS, SR; KAPLAN, NO; VENDITTI, JM | 1 |
| CHALOUPKA, MM; REYNOLDS, MS; VIVIAN, VM | 1 |
| FEDELE, L; QUAGLIARIELLO, E; SACCONE, C; TANCREDI, F | 2 |
| Davidson, CS; Gabuzda, GJ | 1 |
| HALVORSEN, K; HALVORSEN, S | 1 |
| BELAVADY, B; GOPALAN, C; SRIKANTIA, SG | 1 |
| BERRY, LJ; SMYTHE, DS | 1 |
| CONTRERAS, E; CROXATTO, R; HUIDOBRO, F | 1 |
| DEMEULEMEESTER, F | 1 |
| MOLINA, C | 1 |
| TRUSWELL, AS | 1 |
| DELAEY, P; HOOFT, C; SNOECK, J; TIMMERMANS, J | 3 |
| BROWN, FC | 1 |
| FRATTA, I; GREENGARD, P; SIGG, EB; ZAK, SB | 1 |
| HUANG, PC; KAO, MS; LIU, DK | 1 |
| Delange, DJ; Joubert, CP | 1 |
| GREENGARD, P; QUINN, GP; REID, MB | 1 |
| IVANOVA, VD; RAUSHENBAKH, MO | 1 |
| PASQUARIELLO, G | 1 |
| MAINARDI, L; TENCONI, LT | 1 |
| Gopalan, C; Narasingarao, BS; Raghuramulu, N | 1 |
| BARKIN, M; KERR, WK; LEVERS, PE; MENCZYK, Z; WOO, SK | 1 |
| ZOELLER, WW | 1 |
| Abernathy, RP; Miller, J | 1 |
| OHGURI, S | 1 |
| CHIANCONE, FM | 1 |
| Murray, MF | 1 |
| Boulla, G; Deterre, P; Lacapère, JJ; Lund, FE; Oppenheimer, N; Primack, J; Schuber, F | 1 |
| Fukuwatari, T; Sasaki, R; Shibata, K; Wada, H | 1 |
| HEIMBERG, M; LEDER, IG; PERLZWEIG, WA; ROSEN, F | 1 |
| SUNG, SC; TUNG, TC | 1 |
| FICHTER, B; GLAZER, HS; MUELLER, JF; VILTER, RW | 1 |
| ELVEHJEM, CA; FEIGELSON, P; WILLIAMS, JN | 1 |
| Fukuwatari, T; Ohta, M; Sasaki, R; Shibata, K; Toriochi, M | 1 |
| ABDEL KADER, MM; ELLINGER, P | 5 |
| Fukuwatari, T; Sasaki, R; Shibata, K; Suzuura, C | 1 |
| Arvidsson, B; Bergquist, J; Bowyer, JF; Casida, JE; Dobrovolsky, VN; Doerge, DR; Heflich, RH; Pabarcus, MK; Williams, LD | 1 |
| Fukuwatari, T; Kimtjra, N; Ohta, M; Sasaki, R; Shibata, K | 1 |
| Ftukijwatari, T; Jin-No, Y; Kimura, N; Murakami, M; Ohta, M; Sasaki, R; Shibata, K | 1 |
| Ohura, T | 1 |
| Egashira, Y; Nagaki, S; Sanada, H | 1 |
| Astegiano, M; Pellicano, R; Rizzetto, M; Simondi, D; Terzi, E | 1 |
| BOND, HW; HUNDLEY, JM | 1 |
| DEWEY, VC; KIDDER, GW | 1 |
| Fukuwatari, T; Shibata, K | 3 |
| Cwik, M; Llenos, IC; Miller, CL; Walkup, J; Weis, S | 1 |
| Leanderson, T; Lund, H; Pero, RW | 1 |
| RUDKIN, GT; SCHULTZ, J | 1 |
| JUNQUEIRA, PB; SCHWEIGERT, BS | 1 |
| Fukuwatari, T; Shibata, K; Wada, H | 1 |
| Cholongitas, E; Ioannidou, D; Pipili, C | 1 |
| Egashira, Y; Sanada, H; Sasaki, N | 1 |
| Fukuwatari, T; Okuno, A; Shibata, K; Takahashi, K | 1 |
| PEARSON, PB; SCHWEIGERT, BS | 1 |
| PEARSON, PB; SCHWEIGERT, BS; WILKENING, MC | 1 |
| Lund, H; Pero, RW | 1 |
| Fukuwatari, T; Imai, E; Sano, M; Shibata, K | 1 |
| Camargo, SM; Clevers, H; Fukamizu, A; Hanada, R; Hanada, T; Hashimoto, T; Ishiguro, H; Kuba, K; Lipinski, S; Paolino, M; Penninger, JM; Perlot, T; Rehman, A; Richter, A; Rosenstiel, P; Schreiber, S; Sigl, V; Singer, D; Trichereau, J; Verrey, F; Wild, B | 1 |
| Fukuwatari, T; Kondo, R; Sano, M; Shibata, K | 1 |
| Fukuwatari, T; Hiratsuka, C; Saito, K; Sano, M; Sasaki, S; Shibata, K | 1 |
| Fukuwatari, T; Funakoshi, H; Kadota, E; Kanai, M; Nakamura, T; Sano, M; Shibata, K; Terakata, M | 1 |
| Fukuwatari, T; Morita, N; Shibata, K; Shibata, Y | 1 |
| Fukuwatari, T; Inomoto, K; Nakata, C; Shibata, K | 1 |
| Fukuwatari, T; Imai, S; Nakata, C; Shibata, K | 1 |
| Fukuwatari, T; Funakoshi, H; Maeta, A; Nakamura, T; Sano, M; Shibata, K | 1 |
| Fukuwatari, T; Nakata, C; Shibata, K | 1 |
| Fukuwatari, T; Kobayashi, R; Shibata, K | 1 |
| da Cunha, DF; Maltos, AL; Monteiro, MC; Moraes, GV; Portari, GV; Vannucchi, H | 1 |
| Bipath, P; Levay, PF; Viljoen, M | 1 |
| Bouma, G; de Vries, EG; Kats-Ugurlu, G; Kema, IP; van Faassen, M; Walenkamp, AM | 1 |
| Comte, B; Dardevet, D; Gatineau, E; Lyan, B; Martin, JF; Mazur, A; Mosoni, L; Polakof, S; Pujos-Guillot, E | 1 |
| James, EL; Karoly, ED; Lane, JA; Michalek, RD; Parkinson, EK | 1 |
| Makino, R; Okuyama, H; Tachibana, T; Tomonaga, S | 1 |
| Imai, E; Shibata, K | 1 |
| Baur, JA; Chellappa, K; Frederick, DW; Hui, S; Krukenberg, K; Liu, L; Migaud, M; Mitchison, TJ; Quinn, WJ; Rabinowitz, JD; Redpath, P; Su, X; White, E; Zhan, L | 1 |
| Shibata, K | 1 |
| Becquemont, L; Boniface, B; Boursier-Neyret, C; Chanson, P; Colle, R; Corruble, E; David, DJ; Falissard, B; Fève, B; Masson, P; Verstuyft, C; Walther, B; Werner, E | 1 |
| Berge, RK; Bjørndal, B; Lindquist, C; Lund, A; Nygård, O; Skorve, J; Slettom, G; Svardal, A | 1 |
| Akamatsu, Y; Hayashi, T; Moritani, T; Nishida, MM; Tsujita, N | 1 |
| Andres, CR; Benz-de Bretagne, I; Bernard, L; Bessy, C; Blasco, H; Boulard, P; Cannet, P; Emond, P; Guillon, A; Hérault, O; Lefevre, A; Lumbu, H; Marlet, J; Morel, T; Piver, E; Plantier, L; Stefic, K; Vourc'h, P | 1 |
| Bruls, YMH; Connell, NJ; de Vogel, J; Fealy, CE; Geurts, J; Grevendonk, L; Hageman, R; Havekes, B; Hoeks, J; Houtkooper, RH; Moonen-Kornips, E; Schrauwen, P; Schrauwen-Hinderling, VB; Zapata-Perez, R | 1 |
| Barr, DB; Batross, J; Baumert, BO; D'Souza, P; Fiedler, N; Kaewthit, K; Kohsuwan, K; Liang, D; Mangklabruks, A; Naksen, W; Panuwet, P; Pingwong, S; Prapamontol, T; Promkam, N; Ryan, PB; Sittiwang, S; Suttiwan, P; Tan, Y; Yakimavets, V | 1 |
| Liu, Q; Liu, R; Lu, Q; Pu, Y; Wang, S; Yin, L; Yu, X; Zhang, H; Zhang, Y; Zhao, C; Zhou, J | 1 |
| Fathi, M; Hajibeygi, R; Jazi, K; Klegeris, A; McElhinney, A; Sayehmiri, F; Shool, S; Sodeifian, F; Tavasol, A; Tavirani, MR; Vakili, K; Yaghoobpoor, S | 1 |
| Bozon, K; Bröer, S; Cuny, H; Dunwoodie, SL; Kirk, RB; Sheng, DZ | 1 |
17 review(s) available for niacinamide and tryptophan
| Article | Year |
|---|---|
[Nephrolithiasis and the gastrointestinal tract].
Topics: Amino Acids; Biological Transport; Calcium Oxalate; Cystinuria; Dehydration; Digestive System; Glutamine; Hartnup Disease; Humans; Kidney Calculi; Niacinamide; Oxalates; Solubility; Tryptophan | 1979 |
[Biochemical treatment possibilities in psychoses].
Topics: Amino Acids; Ascorbic Acid; Dihydroxyphenylalanine; Humans; Methionine; Niacinamide; Nicotinic Acids; Phenylalanine; Psychotic Disorders; Pyridoxine; Schizophrenia; Tryptophan; Tyrosine | 1969 |
Testing the functional capacity of the tryptophan-niacin pathway in man by analysis of urinary metabolites.
Topics: Adult; Amides; Amines; Chromatography, Ion Exchange; Equipment and Supplies; Female; Hormones; Humans; Indican; Ion Exchange Resins; Kynurenic Acid; Male; Metabolism, Inborn Errors; Methods; Niacinamide; Nicotinic Acids; Phenols; Pregnancy; Pyridoxine; Spectrophotometry; Tryptophan; Vitamins; Xanthurenates | 1965 |
Quantitative aspects of tryptophan metabolism in humans and other species: a review.
Topics: Age Factors; Amides; Animals; Carbon Isotopes; Cats; Dogs; Female; Glucuronates; Glycine; Hippurates; Humans; Hydroxyindoleacetic Acid; Indican; Kynurenic Acid; Kynurenine; Lysine; Male; Mice; Niacinamide; Nicotinic Acids; ortho-Aminobenzoates; Pyridines; Pyridones; Pyridoxine; Rats; Serotonin; Sex Factors; Species Specificity; Swine; Time Factors; Tryptophan; Xanthurenates | 1971 |
[Conformation of active site of lysozyme (author's transl)].
Topics: Aspartic Acid; Binding Sites; Circular Dichroism; Glucosamine; Glutamates; Hydrogen-Ion Concentration; Kinetics; Lysosomes; Niacinamide; Protein Conformation; Tryptophan | 1974 |
Excretion of tryptophan metabolites as affected by pregnancy, contraceptive steroids, and steroid hormones.
Topics: Androsterone; Animals; Contraceptives, Oral; Enzyme Induction; Estradiol; Female; Humans; Hydrocortisone; Kynurenine; Liver; Male; Megestrol; NAD; Niacinamide; ortho-Aminobenzoates; Pregnancy; Pyridoxine; Rats; Tryptophan; Tryptophan Oxygenase; Xanthurenates | 1971 |
Nerve growth factor and insulin: evidence of similarities in structure, function, and mechanism of action.
Topics: Amino Acid Sequence; Amino Acids; Animals; Binding Sites; Biological Assay; Bucladesine; Chick Embryo; Disulfides; Ganglia; Insulin; Nerve Growth Factors; Niacinamide; Oxidation-Reduction; Protein Binding; Protein Conformation; Succinates; Theophylline; Tryptophan | 1974 |
[Naturally occurring material containing pyridine and its biosynthesis].
Topics: Alkaloids; Bacteria; Carbon Radioisotopes; Isomerism; Molecular Conformation; NAD; Niacinamide; Nicotinic Acids; Oxygen Consumption; Picolinic Acids; Plants; Pyridines; Species Specificity; Streptomyces; Structure-Activity Relationship; Terpenes; Tryptophan | 1970 |
[Physiopathology of the nutritional imbalance caused by deficiency of vitamin PP].
Topics: Amino Acids; Animals; Avitaminosis; Humans; NAD; NADP; Niacinamide; Pellagra; Tryptophan | 1968 |
Effects of tryptophan and nicotinamide intakes on in vivo oxidation of tryptophan and excretion of N1-methylnicotinamide in young rats.
Topics: Animals; Dose-Response Relationship, Drug; Niacinamide; Rats; Tryptophan | 1983 |
Niacin-tryptophan relationships for evaluating niacin equivalents.
Topics: Biological Availability; Child; Dietary Proteins; Female; Food Analysis; Food Labeling; Humans; Infant; Lactation; Male; Niacinamide; Nicotinic Acids; Nutritional Requirements; Pregnancy; Tryptophan | 1981 |
[Hartnup syndrome. A rare metabolic disease].
Topics: Consanguinity; Hartnup Disease; Humans; Niacinamide; Tryptophan | 1993 |
Evaluating the role of niacin in human carcinogenesis.
Topics: Anticarcinogenic Agents; Diet; Erythrocytes; Humans; NAD; Niacin; Niacinamide; Poly Adenosine Diphosphate Ribose; Tryptophan | 1995 |
Tryptophan depletion and HIV infection: a metabolic link to pathogenesis.
Topics: Anti-HIV Agents; HIV Infections; Humans; Niacinamide; Tryptophan | 2003 |
[Hartnup disorder: Pathogenesis, pathophysiology, and therapy].
Topics: Amino Acid Transport Systems, Neutral; Child; Cloning, Molecular; Genotype; Hartnup Disease; Humans; Infant; Infant, Newborn; Mutation; Niacinamide; Phenotype; Serotonin; Tryptophan | 2006 |
Organ Co-Relationship in Tryptophan Metabolism and Factors That Govern the Biosynthesis of Nicotinamide from Tryptophan.
Topics: 3-Hydroxyanthranilate 3,4-Dioxygenase; 3-Hydroxyanthranilic Acid; Animals; Diet; Humans; Indoleamine-Pyrrole 2,3,-Dioxygenase; Kynurenic Acid; Liver; Niacinamide; Nutritional Status; Pentosyltransferases; Quinolinic Acid; Tryptophan; Vitamin B Deficiency; Xanthurenates | 2018 |
Dynamic changes in metabolites of the kynurenine pathway in Alzheimer's disease, Parkinson's disease, and Huntington's disease: A systematic Review and meta-analysis.
Topics: 3-Hydroxyanthranilic Acid; Adenosine; Alzheimer Disease; Humans; Huntington Disease; Hydroxyindoleacetic Acid; Kynurenic Acid; Kynurenine; NAD; Niacinamide; Parkinson Disease; Tryptophan | 2022 |
13 trial(s) available for niacinamide and tryptophan
| Article | Year |
|---|---|
Letter: Treatment of unipolar depression.
Topics: Depression; Electroconvulsive Therapy; Female; Humans; Male; Middle Aged; Niacinamide; Tryptophan | 1975 |
Tryptophan-nicotinamide combination in depression.
Topics: Adult; Aged; Clinical Trials as Topic; Depression; Drug Synergism; Drug Therapy, Combination; Female; Humans; Male; Middle Aged; Niacinamide; Tryptophan | 1977 |
Tryptophan dosage critical for its antidepressant effect.
Topics: Clinical Trials as Topic; Depression; Double-Blind Method; Drug Synergism; Humans; Imipramine; Niacinamide; Tryptophan | 1978 |
Tryptophan-nicotinamide, imipramine and their combination in depression. A controlled study.
Topics: Adult; Bipolar Disorder; Clinical Trials as Topic; Depression; Double-Blind Method; Drug Evaluation; Drug Synergism; Drug Therapy, Combination; Female; Humans; Imipramine; Kynurenine; Male; Middle Aged; Niacinamide; Psychiatric Status Rating Scales; Tryptophan | 1979 |
Interaction of niacin and zinc metabolism in patients with alcoholic pellagra.
Topics: Adult; Alcoholism; Drug Interactions; Female; Humans; Middle Aged; Niacin; Niacinamide; Pellagra; Tryptophan; Zinc | 1989 |
Studies on tryptophan metabolism in male subjects treated with female sex hormones.
Topics: Aminohippuric Acids; Chlorotrianisene; Chromatography, Ion Exchange; Clinical Trials as Topic; Diethylstilbestrol; Glucuronates; Humans; Indican; Isonicotinic Acids; Kynurenic Acid; Kynurenine; Male; Mestranol; Niacinamide; Norethindrone; Norethynodrel; ortho-Aminobenzoates; Progestins; Prostatic Diseases; Prostatic Hyperplasia; Prostatitis; Pyridones; Pyridoxine; Spectrophotometry; Tryptophan; Tryptophan Oxygenase; Xanthurenates | 1970 |
Metabolism of an oral tryptophan load. II: Effect of pretreatment with the putative tryptophan pyrrolase inhibitors nicotinamide or allopurinol.
Topics: Administration, Oral; Adult; Allopurinol; Humans; Male; Niacinamide; Tryptophan; Tryptophan Oxygenase | 1980 |
Effect of L-tryptophan on spasmodic torticollis.
Topics: Drug Therapy, Combination; Humans; Movement; Niacinamide; Torticollis; Tryptophan | 1981 |
Diurnal variations in human urinary excretion of nicotinamide catabolites: effects of stress on the metabolism of nicotinamide.
Topics: Adult; Chromatography, High Pressure Liquid; Circadian Rhythm; Cold Temperature; Cross-Over Studies; Darkness; Female; Humans; Kinetics; Mental Processes; Niacin; Niacinamide; Stress, Physiological; Tryptophan | 2003 |
Antioxidant metabolism induced by quinic acid. Increased urinary excretion of tryptophan and nicotinamide.
Topics: Antioxidants; Diet; Hippurates; Humans; Linear Models; Male; Niacinamide; Quinic Acid; Sulfhydryl Compounds; Tryptophan | 2009 |
Supplementing healthy women with up to 5.0 g/d of L-tryptophan has no adverse effects.
Topics: Adolescent; Adult; Biomarkers; Body Mass Index; Cross-Over Studies; Dietary Supplements; Double-Blind Method; Female; Humans; Kynurenic Acid; Kynurenine; Niacinamide; ortho-Aminobenzoates; Placebos; Tryptophan; Young Adult | 2013 |
Effect of Tryptophan, Vitamin B
Topics: Adolescent; Adult; Affect; Depression; Dietary Supplements; Double-Blind Method; Female; Heart Rate; Humans; Male; Niacinamide; Placebos; Tryptophan; Vitamin B 6; Young Adult | 2019 |
NAD+-Precursor Supplementation With L-Tryptophan, Nicotinic Acid, and Nicotinamide Does Not Affect Mitochondrial Function or Skeletal Muscle Function in Physically Compromised Older Adults.
Topics: Aged; Dietary Supplements; Female; Humans; Male; Mitochondria; Muscle, Skeletal; NAD; Niacin; Niacinamide; Tryptophan | 2021 |
280 other study(ies) available for niacinamide and tryptophan
| Article | Year |
|---|---|
Cheminformatics analysis of assertions mined from literature that describe drug-induced liver injury in different species.
Topics: Animals; Chemical and Drug Induced Liver Injury; Cluster Analysis; Databases, Factual; Humans; MEDLINE; Mice; Models, Chemical; Molecular Conformation; Quantitative Structure-Activity Relationship | 2010 |
Letter: Tryptophan plus a pyrrolase inhibitor for depression?
Topics: Allopurinol; Brain; Depression; Drug Synergism; Drug Therapy, Combination; Humans; Niacinamide; Time Factors; Tryptophan | 1975 |
Letter: Tryptophan plus a pyrrolase inhibitor for depression.
Topics: Allopurinol; Animals; Depression; Drug Synergism; Drug Therapy, Combination; Glucose; Humans; Niacinamide; Rats; Rats, Inbred Strains; Tryptophan; Tryptophan Oxygenase | 1975 |
[Studies on tryptophan metabolism in untreated phenylketonuric patients].
Topics: Acetophenones; Adolescent; Adult; Biotransformation; Child; Child, Preschool; Chromatography, Ion Exchange; Chromatography, Thin Layer; Female; Humans; Kynurenic Acid; Kynurenine; Male; Mass Spectrometry; Niacinamide; Nicotinic Acids; ortho-Aminobenzoates; Phenylalanine; Phenylketonurias; Quinolines; Tryptophan; Xanthurenates | 1975 |
Effects of excess intake of leucine and valine deficiency on tryptophan and niacin metabolites in humans.
Topics: Adult; Amino Acids; Dose-Response Relationship, Drug; Female; Humans; Hydroxyindoleacetic Acid; Leucine; Male; Middle Aged; Niacinamide; Nicotinic Acids; Nitrogen; Pyridones; Pyridoxine; Quinolinic Acids; Tryptophan; Valine | 1975 |
Studies of tryptophan and albumin metabolism in a patient with carcinoid syndrome, pellagra, and hypoproteinemia.
Topics: Adult; Body Weight; Female; Humans; Hypoproteinemia; Malignant Carcinoid Syndrome; Niacinamide; Pellagra; Serum Albumin; Serum Albumin, Radio-Iodinated; Tryptophan | 1976 |
[Tryptophan-load in progressive scleroderma (author's transl)].
Topics: 3-Hydroxyanthranilic Acid; Female; Humans; Hydroxyindoleacetic Acid; Indoleacetic Acids; Kynurenine; Male; Niacinamide; Scleroderma, Systemic; Serotonin; Skin; Tryptamines; Tryptophan; Xanthurenates | 1976 |
The uptake in the pancreatic islets of nicotinamide, nicotinic acid and tryptophan and their ability to prevent streptozotocin diabetes in mice.
Topics: Animals; Autoradiography; Blood Glucose; Diabetes Mellitus; Islets of Langerhans; Mice; Mice, Inbred C57BL; Niacinamide; Nicotinic Acids; Streptozocin; Tryptophan | 1976 |
Effect of aminophylline on tryptophan and other aromatic amino acids in plasma, brain and other tissues and on brain 5-hydroxytryptamine metabolism.
Topics: Amino Acids; Aminophylline; Animals; Behavior, Animal; Brain; Diabetes Mellitus; Fatty Acids, Nonesterified; Insulin; Male; Niacinamide; Propranolol; Rats; Serotonin; Time Factors; Tryptophan; Xanthines | 1976 |
Crystal structure of the ion pair 1-methyl-3-carbamidopyridinium N-acetyl-L-tryptophanate, a model for 1-substituted nicotinamide-protein charge-transfer completes.
Topics: Crystallography; Electrochemistry; Models, Chemical; Niacinamide; Protein Binding; Pyridinium Compounds; Tryptophan | 1977 |
Effect of tryptophan and nicotinamide loads on urinary excretion of RNA metabolites by bladder cancer patients.
Topics: Aminoisobutyric Acids; Guanine; Humans; Male; Niacinamide; Pseudouridine; RNA, Neoplasm; Tryptophan; Uric Acid; Urinary Bladder Neoplasms | 1977 |
Fluorescence of human liver alanine aminopeptidase.
Topics: Aminopeptidases; Binding Sites; Caprylates; Dansyl Compounds; Energy Transfer; Fluorescence; Humans; Iodides; Liver; Lysine; Niacinamide; Pyridines; Tryptophan | 1977 |
Tryptophan metabolism "via" nicotimic acid in patients with scleroderma.
Topics: Adult; Aged; Female; Humans; Kynurenine; Middle Aged; Niacinamide; Nicotinic Acids; Pyridoxine; Scleroderma, Localized; Scleroderma, Systemic; Tryptophan | 1976 |
Relationship between tryptophan metabolism and vitamin B6 and nicotinamide in aged subjects.
Topics: Adult; Age Factors; Aged; Female; Humans; Male; Niacinamide; Pyridoxine; Sex Factors; Tryptophan | 1975 |
Tryptophan metabolism in relation to amino acid alterations during typhoid fever.
Topics: Amino Acids; Humans; Kynurenine; Liver; Niacinamide; Tryptophan; Typhoid Fever; Xanthurenates | 1975 |
Studies on tryptophan metabolism in ethylism.
Topics: Adult; Aged; Alcoholism; Female; Humans; Male; Middle Aged; Niacinamide; Pyridoxine; Tryptophan | 1975 |
N1-Methylnicotinamide urinary output in multiple sclerosis affected patients.
Topics: Adult; Female; Humans; Male; Middle Aged; Multiple Sclerosis; Niacinamide; Tryptophan | 1975 |
A pyridoxine-dependent behavioral disorder unmasked by isoniazid.
Topics: Child Behavior Disorders; Child, Preschool; Female; Humans; Hyperkinesis; Isoniazid; Kynurenine; Niacinamide; Pyridoxine; Substance Withdrawal Syndrome; Tryptophan | 1978 |
Tryptophan-nicotinamide combination in the treatment of newly admitted depressed patients.
Topics: Adult; Bipolar Disorder; Depression; Drug Therapy, Combination; Female; Humans; Male; Middle Aged; Niacinamide; Tryptophan | 1978 |
Metabolic abnormalities of tryptophan and nicotinic acid in patients with rheumatoid arthritis.
Topics: 3-Hydroxyanthranilic Acid; Arthritis, Rheumatoid; Feeding Behavior; Humans; Kynuramine; Niacinamide; Nicotinic Acids; Tryptophan; Xanthurenates | 1978 |
Potentiation of lithium by tryptophan in a patient with bipolar illness.
Topics: Bipolar Disorder; Drug Synergism; Drug Therapy, Combination; Female; Humans; Lithium; Middle Aged; Niacinamide; Tryptophan | 1979 |
Influence of nicotinic acid amide, tryptophan, and methionine upon galactosamine-induced hepatitis.
Topics: Animals; Galactosamine; Hepatitis, Animal; Liver; Male; Methionine; Niacinamide; Rats; Tryptophan | 1979 |
NAD precursors as antiteratogens against aminothiadiazole.
Topics: Animals; Dose-Response Relationship, Drug; Female; Fetal Resorption; Gestational Age; Kynurenine; Male; NAD; Niacinamide; Nicotinic Acids; Pregnancy; Quinolinic Acids; Rats; Teratogens; Thiadiazoles; Tryptophan | 1976 |
The contribution of tryptophan to the regulation of the NAD+ level in mouse liver.
Topics: Aging; Animals; Liver; Mice; NAD; Niacinamide; Nicotinic Acids; Organ Specificity; Tryptophan | 1975 |
Nicotinamide adenine dinucleotide metabolism in Candida albicans.
Topics: Biological Transport; Candida albicans; Kinetics; NAD; Niacinamide; Nicotinic Acids; Tryptophan | 1979 |
Effects of pH on the exposure of aromatic donor residues in solution topography studies of bovine trypsin by charge transfer.
Topics: Animals; Binding Sites; Bromosuccinimide; Cattle; Energy Transfer; Hydrogen-Ion Concentration; Mathematics; Niacinamide; Pancreas; Protein Binding; Protein Conformation; Spectrophotometry; Spectrophotometry, Ultraviolet; Trypsin; Trypsin Inhibitors; Tryptophan; Tyrosine | 1975 |
Tryptophan metabolism in mice infected with Schistosoma mansoni.
Topics: Animals; Cells, Cultured; Hydroxyindoleacetic Acid; Kynurenic Acid; Kynurenine; Liver; Male; Mice; Niacinamide; Schistosomiasis mansoni; Serotonin; Tryptophan; Xanthurenates | 1991 |
Pellagra with colitis due to a defect in tryptophan metabolism.
Topics: Child; Colitis; Female; Humans; Kynurenine 3-Monooxygenase; Mixed Function Oxygenases; Niacinamide; Pellagra; Tryptophan | 1991 |
Inhibition of tryptophan----niacin metabolism by dietary leucine and by leucine and 2-oxo-isocaproate in vitro.
Topics: Animals; Cells, Cultured; Depression, Chemical; Dietary Proteins; Keto Acids; Kynurenine; Leucine; Liver; NADP; Niacin; Niacinamide; Pellagra; Rats; Tryptophan; Xanthurenates | 1991 |
Schistosoma mansoni: effects on tryptophan metabolism in mice.
Topics: Animals; Chemical Phenomena; Chemistry; Kynurenic Acid; Kynurenine; Liver; Male; Mice; Niacinamide; Oxidation-Reduction; Pyridoxine; Schistosomiasis mansoni; Tryptophan | 1990 |
Effect of dietary tryptophan levels on the urinary excretion of nicotinamide and its metabolites in rats fed a niacin-free diet or a constant total protein level.
Topics: Administration, Oral; Animals; Body Weight; Dietary Proteins; Liver; Male; Niacin; Niacinamide; Rats; Rats, Inbred Strains; Tryptophan | 1990 |
Circumvention of defective neutral amino acid transport in Hartnup disease using tryptophan ethyl ester.
Topics: Amino Acids; Animals; Biological Transport; Child, Preschool; Female; Hartnup Disease; Humans; Hydrolysis; Hydroxyindoleacetic Acid; Male; Niacinamide; Rats; Rats, Inbred Strains; Serotonin; Tryptophan | 1989 |
Effects of a dietary excess of leucine and of the addition of leucine and 2-oxo-isocaproate on the metabolism of tryptophan and niacin in isolated rat liver cells.
Topics: Animals; Caproates; In Vitro Techniques; Keto Acids; Kynurenine; Leucine; Liver; Male; NAD; Niacin; Niacinamide; Rats; Rats, Inbred Strains; Tryptophan; Xanthurenates | 1989 |
Influence of ethanol upon the introduction of tyrosine aminotransferase in liver, upon the NAD content in liver and brain, and upon the activity of glutamate oxalate aminotransferase and glutamate pyruvate aminotransferase in the serum of rats.
Topics: Adrenalectomy; Alanine Transaminase; Animals; Aspartate Aminotransferases; Brain Chemistry; Ethanol; Liver; Methionine; NAD; Niacinamide; Rats; Rats, Inbred Strains; Tryptophan; Tyrosine Transaminase | 1985 |
Successful nicotinamide treatment in an autosomal dominant behavioral and psychiatric disorder.
Topics: Child Behavior Disorders; Female; Genes, Dominant; Humans; Niacinamide; Tryptophan | 1985 |
Treatment of polymorphous light eruption with nicotinamide: a pilot study.
Topics: Administration, Oral; Adolescent; Adult; Female; Humans; Male; Middle Aged; Niacinamide; Photosensitivity Disorders; Sunlight; Tryptophan | 1986 |
Leucine excess and niacin status in rats.
Topics: Animals; Body Weight; Diet; Edible Grain; India; Leucine; Liver; Male; Niacin; Niacinamide; Nicotinamide Mononucleotide; Nutritional Status; Pellagra; Rats; Rats, Inbred Strains; Statistics as Topic; Tryptophan; Vitamin B 6 Deficiency | 1987 |
The metabolism of high intakes of tryptophan, nicotinamide and nicotinic acid in the rat.
Topics: Animals; Chromatography, High Pressure Liquid; Male; Niacin; Niacinamide; Rats; Rats, Inbred Strains; Tryptophan; Urine | 1986 |
Is leucine excess a factor in pellagra?
Topics: Animals; Leucine; Niacin; Niacinamide; Pellagra; Rats; Tryptophan | 1987 |
Utilization of tryptophan, nicotinamide and nicotinic acid as precursors for nicotinamide nucleotide synthesis in isolated rat liver cells.
Topics: Animals; Cells, Cultured; Dose-Response Relationship, Drug; In Vitro Techniques; Liver; Male; NAD; NADP; Niacin; Niacinamide; Rats; Rats, Inbred Strains; Tryptophan | 1988 |
[A case of Hartnup disease].
Topics: Adult; Amino Acids; Female; Hartnup Disease; Humans; Niacinamide; Skin; Tryptophan | 1988 |
Effects of diazinon on nucleotide and amino acid contents of chick embryos. Teratogenic considerations.
Topics: Abnormalities, Drug-Induced; Amino Acids; Animals; Chick Embryo; Diazinon; Insecticides; NAD; Niacinamide; Nucleotides; Tryptophan | 1985 |
End-product regulation of the tryptophan-nicotinic acid pathway in Neurospora crassa.
Topics: Arylformamidase; Cell-Free System; Culture Media; Fluorometry; Hydrolases; Kynurenine; Neurospora; Niacinamide; Nicotinic Acids; ortho-Aminobenzoates; Spectrophotometry; Spores, Fungal; Tryptophan; Tryptophan Oxygenase | 1971 |
Letter: Tryptophan plus a pyrrolase inhibitor for depression?
Topics: Adult; Allopurinol; Animals; Depression; Drug Evaluation; Drug Synergism; Drug Therapy, Combination; Humans; In Vitro Techniques; Niacinamide; Rats; Tryptophan; Tryptophan Oxygenase | 1974 |
The relation between urinary excretion of tryptophan and niacin metabolites and pyridine nucleotides in the liver in rats fed a tryptophan-deficient diet.
Topics: Adenine Nucleotides; Animal Nutritional Physiological Phenomena; Animals; Body Weight; Deficiency Diseases; Female; Liver; NAD; NADP; Niacinamide; Nicotinic Acids; Nucleotides; Organ Size; Pyridones; Rats; Tryptophan | 1974 |
Pyridine nucleotides in the thyroid gland. II. Effect of nicotinamide, nicotinic acid and L-tryptophan administration.
Topics: Animals; Kinetics; Male; NAD; NADP; Niacin; Niacinamide; Oxidation-Reduction; Rats; Thyroid Gland; Tryptophan | 1968 |
An assay procedure for nicotinamide-adenine dinucleotides in rat liver and other tissues.
Topics: Alcohol Oxidoreductases; Animals; Buffers; Chemistry Techniques, Analytical; Edetic Acid; Ethanol; Glucosephosphate Dehydrogenase; In Vitro Techniques; Indicators and Reagents; Liver; NAD; NADP; Niacinamide; Phenazines; Phenols; Phosphates; Rats; Spectrophotometry; Subcellular Fractions; Tryptophan | 1964 |
Vitamin B6 depletion in man: urinary excretion of quinolinic acid and niacin metabolites.
Topics: Humans; Male; Niacinamide; Nicotinic Acids; Pyridines; Pyridones; Tryptophan; Urine; Vitamin B 6 Deficiency | 1965 |
Dietary production of myocardial fibrosis in the rat.
Topics: Animals; Cardiomyopathies; Dietary Fats; Dietary Proteins; Niacinamide; Pyridoxine; Rats; Tryptophan; Zea mays | 1966 |
Increase in uric acid biosynthesis produced by 2-substituted thiadiazoles.
Topics: Azaserine; Azoles; Diazooxonorleucine; Mercaptopurine; Methotrexate; Niacinamide; Nicotinic Acids; Tryptophan; Uric Acid | 1965 |
Effects of L-tryptophan load on the metabolism of tryptophan-2-C14 in man.
Topics: Aged; Aminohippuric Acids; Carbon Dioxide; Female; Humans; Kynurenic Acid; Kynurenine; Male; Middle Aged; Niacinamide; Pyridines; Pyridones; Tryptophan; Tryptophan Oxygenase; Xanthurenates | 1967 |
Effect of levels of nitrogen intake on tryptophan metabolism and requirement for pregnancy of the rat.
Topics: Animals; Female; Glutamates; Glycine; Male; Niacinamide; Nitrogen; Nucleotides; Pregnancy; Pregnancy, Animal; Rats; Tryptophan | 1967 |
Transport of B-vitamins in microorganisms. IV. The specificity of the high accumulation of labelled thiamine in non-proliferating thiamine deficient cells of L. fermenti.
Topics: Adenine; Aspartic Acid; Biotin; Carbon Isotopes; Cell Membrane Permeability; Glutamates; Lactobacillus; Niacinamide; Thiamine; Thiamine Deficiency; Tryptophan | 1966 |
Tryptophan load and uptake of tryptophan by leukocytes in Hartnup disease.
Topics: Adolescent; Amino Acids; Chromatography, Paper; Female; Hartnup Disease; Humans; Indoleacetic Acids; Kynurenine; Leukocytes; Male; Niacinamide; Tryptophan | 1966 |
Schizophrenic behavior and urinary tryptophan metabolites associated with cysteine given with and without a monoamine oxidase inhibitor (tranylcypromine).
Topics: Adult; Catatonia; Creatine; Cysteine; Humans; Indoleacetic Acids; Male; Middle Aged; Niacinamide; Paranoid Disorders; Schizophrenia; Tranylcypromine; Tryptamines; Tryptophan | 1967 |
Dark and light metabolism of amino acids in Chlorella vulgaris.
Topics: Amino Acids; Darkness; Eukaryota; Histidine; Leucine; Light; Niacinamide; Tryptophan | 1967 |
Tryptophan metabolism during the mid-period of embryonic development (chick).
Topics: Animals; Body Fluids; Chick Embryo; Chromatography, Gas; Chromatography, Paper; Hydrolases; Kynurenic Acid; Liver; Niacinamide; Nicotinic Acids; Pyridines; Tryptophan; Xanthurenates | 1967 |
Hartnup disease.
Topics: Adult; Amino Acids; Chromatography, Paper; Female; Hartnup Disease; Humans; Liver; Male; Niacinamide; Pedigree; Tryptophan | 1967 |
[Elimination of the metabolites of the tryptophan--nicotinic acid pathway after corticoid treatment in the rat].
Topics: Adrenal Cortex Hormones; Animals; Hippurates; Hydrocortisone; Kynurenine; Niacinamide; Nicotinic Acids; Rats; Tryptophan; Xanthurenates | 1967 |
Protein nutrition status in childhood pellagra. Evaluation of nicotinic acid status and creatinine excretion.
Topics: Blood Proteins; Body Height; Body Weight; Child; Child, Preschool; Creatinine; Female; Hemoglobins; Humans; Male; Niacinamide; Nicotinic Acids; Pellagra; Protein Deficiency; Serum Albumin; Serum Globulins; Statistics as Topic; Tryptophan | 1968 |
Effect of protein intake on the excretion of quinolinic acid and niacin metabolites by men during vitamin B6 depletion.
Topics: Adolescent; Adult; Dietary Proteins; Humans; Male; Niacinamide; Nicotinic Acids; Pyridines; Pyridoxine; Tryptophan | 1968 |
Determination of urinary constituents in solutions by least-squares resolution of ultraviolet spectrums.
Topics: Acids; Adenine; Aminobenzoates; Ascorbic Acid; Benzoates; Cinnamates; Computers; Creatinine; Cytosine; Ergothioneine; Hippurates; Hypoxanthines; Indican; Niacinamide; ortho-Aminobenzoates; Spectrum Analysis; Statistics as Topic; Tryptophan; Ultraviolet Rays; Uric Acid; Urine; Xanthurenates | 1968 |
[Apropos of the use of vitamins in the treatment of chronic leukemia at its early stage. II].
Topics: Ascorbic Acid; Chronic Disease; Humans; Leukemia, Lymphoid; Leukemia, Myeloid; Niacinamide; Pyridoxine; Riboflavin; Thiamine; Tryptophan; Vitamin B 12; Vitamin B 6 Deficiency; Vitamins | 1966 |
Study of some factors affecting pentobarbital sleeping time.
Topics: Aldosterone; Animals; Desoxycorticosterone; Diet; Dietary Carbohydrates; Dietary Proteins; Diethylstilbestrol; Drug Synergism; Female; Niacinamide; Nicotinic Acids; Pentobarbital; Progesterone; Pyridoxine; Rats; Sleep; Thiamine; Time Factors; Tryptophan; Vitamin B Complex | 1968 |
Indole metabolism in Hartnup disease.
Topics: Animals; Hartnup Disease; Humans; Indoles; Niacinamide; Rats; Tryptophan | 1968 |
Vitamin B6 requirement of the mink.
Topics: Animal Nutritional Physiological Phenomena; Animals; Diet; Female; Growth; Kynurenic Acid; Male; Mink; Niacinamide; Pyridoxine; Time Factors; Tryptophan; Vitamin B 6 Deficiency; Xanthurenates | 1968 |
[The induction of back-mutations in Bacillus subtilis by some carcinogenic nitrosamines].
Topics: Bacillus subtilis; Carcinogens; Culture Media; Genetics, Microbial; Histidine; Indoles; Mutation; Niacinamide; Nitrosamines; Thymidine; Tryptophan | 1968 |
Metabolism of tryptophan to nicotinic acid derivatives by women taking oesttrogen-progestogen preparations.
Topics: Chemistry, Clinical; Contraceptives, Oral; Female; Humans; Mestranol; Niacinamide; Norethynodrel; Pyridones; Pyridoxine; Stimulation, Chemical; Tryptophan | 1968 |
Tryptophan metabolism in humans with various types of anemias.
Topics: Adult; Aged; Anemia; Carbon Dioxide; Carbon Isotopes; Child; Female; Humans; Kynurenine; Male; Middle Aged; Niacinamide; ortho-Aminobenzoates; Pyridines; Pyridones; Pyridoxine; Spirometry; Thalassemia; Tryptophan; Tryptophan Oxygenase | 1968 |
Effect of blood on the assay of 6-phosphogluconate dehydrogenase in vaginal fluid.
Topics: Blood; Body Fluids; Female; Humans; Methods; Niacinamide; Phosphogluconate Dehydrogenase; Spectrophotometry; Tryptophan; Uterine Cervical Neoplasms; Vagina; Vaginal Smears | 1968 |
Plasma tryptophan and other amino acids in pellagra.
Topics: Adult; Amides; Amino Acids; Child; Child, Preschool; Female; Humans; Kwashiorkor; Niacinamide; Nutrition Disorders; Pellagra; Serum Albumin; South Africa; Tryptophan | 1968 |
Inhibition of in vitro PNH erythrocyte lysis by tryptophan metabolites.
Topics: Anemia, Hemolytic; Culture Techniques; Erythrocytes; Glutathione; Hemoglobinuria, Paroxysmal; Hemolysis; Humans; Hydrogen-Ion Concentration; Indoleacetic Acids; Niacinamide; ortho-Aminobenzoates; Sucrose; Tryptophan | 1969 |
Hartnup disease.
Topics: Child; Child, Preschool; Female; Hartnup Disease; Humans; Infant; Infant, Newborn; Male; Nervous System Diseases; Niacinamide; Renal Tubular Transport, Inborn Errors; Tryptophan; Vitamin B Deficiency | 1969 |
Spectral studies with histidyl-tryptophan peptides.
Topics: Fluorescence; Histidine; Imidazoles; Indoles; Niacinamide; Peptides; Pyridinium Compounds; Spectrum Analysis; Tryptophan | 1969 |
[Observations on the urinary excretion of N1-methylnicotinamide in rats in relation to tryptophan load].
Topics: Animals; Diet; Male; Niacinamide; Pyridoxine; Rats; Tryptophan; Xanthurenates | 1969 |
[Level of tryptophan and vitamin PP in vegetable food products of intertropical Africa].
Topics: Africa; Edible Grain; Food Analysis; Niacinamide; Nutritional Physiological Phenomena; Tryptophan | 1969 |
Comparative tryptophan metabolism in cats and rats: differences in adaptation of tryptophan oxygenase and in vivo metabolism of tryptophan, kynurenine and hydroxykynurenine.
Topics: Amino Acids; Aminohippuric Acids; Animals; Cats; Enzyme Induction; Glucuronates; Hydrocortisone; Indican; Kynurenic Acid; Kynurenine; Male; Niacinamide; ortho-Aminobenzoates; Phenylbutyrates; Rats; Species Specificity; Sulfates; Tryptophan; Tryptophan Oxygenase; Urinary Bladder Neoplasms; Xanthurenates | 1969 |
[D-glyceraldehyde-3-phosphate dehydrogenase from Escherichia coli: content of nicotinamide, adenine dinucleotide and tryptophan; reactivity of the sulfhydryl groups of cysteine].
Topics: Adenine Nucleotides; Cysteine; Escherichia coli; Glyceraldehyde-3-Phosphate Dehydrogenases; Niacinamide; Sulfhydryl Compounds; Tryptophan | 1968 |
The excretion of 3-hydroxyanthranilic and quinolinic acid in Uganda Africans.
Topics: Adult; Analysis of Variance; Creatinine; Diet; Edible Grain; Female; Fruit; Humans; Kynurenic Acid; Male; Manihot; Niacinamide; ortho-Aminobenzoates; Plants, Edible; Pyridines; Tryptophan; Uganda; Urinary Bladder Neoplasms; Xanthurenates | 1969 |
Tryptophan metabolism as affected by anovulatory agents.
Topics: Aminohippuric Acids; Chlorotrianisene; Diethylstilbestrol; Estrogens; Female; Humans; Isoniazid; Kynurenine; Male; Menstruation; Mestranol; Niacinamide; Nicotinic Acids; Norethynodrel; Ovulation; Pregnancy; Progesterone; Pyridoxine; Scleroderma, Systemic; Tryptophan; Urinary Bladder Neoplasms; Vitamin B 6 Deficiency; Xanthurenates | 1969 |
Experimental alteration of tryptophan metabolism by methionine: neuropharmacologic implications.
Topics: Animals; Anti-Bacterial Agents; Body Weight; Creatinine; Deficiency Diseases; Diet; Glycine; Indoleacetic Acids; Male; Methionine; Methylation; Niacinamide; Nicotinic Acids; Pyridoxine; Rats; Tryptophan; Xanthurenates | 1969 |
[Observations on tryptophan-nicotinic acid metabolism after a load of tryptophan and lysine in rats with pyridoxine deficiency].
Topics: Animals; Chromatography; Kynurenine; Lysine; Niacinamide; Nicotinic Acids; Rats; Tryptophan; Vitamin B 6 Deficiency; Xanthurenates | 1969 |
[Alpist. l. Canary-grass seed (Phalaris canariensis L.). An exceptional source of tryptophan].
Topics: Adult; Albumins; Amino Acids; Biological Assay; Chromatography, Ion Exchange; Globulins; Humans; Hydrogen-Ion Concentration; Lactobacillus; Lysine; Methionine; Methods; Niacinamide; Nitrogen; Nutritional Physiological Phenomena; Nutritional Requirements; Plant Proteins; Plants; Seeds; Solubility; Species Specificity; Tryptophan | 1969 |
Lack of effect of smoking on the excretion of tryptophan metabolites by man.
Topics: Adult; Aminohippuric Acids; Female; Glucuronates; Humans; Kynurenic Acid; Kynurenine; Male; Middle Aged; Niacinamide; Pyridinium Compounds; Smoking; Tryptophan; Urinary Bladder Neoplasms; Xanthurenates | 1970 |
Studies on intestinal absorption of amino acids and a dipeptide in a case of Hartnup disease.
Topics: Adult; Alanine; Amino Acids; Chromatography, Paper; Dipeptides; Female; Hartnup Disease; Histidine; Humans; Intestinal Absorption; Intestine, Small; Niacinamide; Phenylalanine; Radiography; Tryptophan | 1970 |
A disorder of tryptophan metabolism in chronic granulomatous disease.
Topics: Child; Child, Preschool; Chromatography, Paper; Chronic Disease; Granuloma; Humans; Infant, Newborn; Infant, Newborn, Diseases; Infections; Kynurenic Acid; Kynurenine; Lymphadenitis; Male; Niacinamide; Pyridoxine; Tryptophan; Xanthurenates | 1970 |
[Biochemical mechanism of action of nicotinic acid, nicotinamide, methionine and D-penicillamine in treatment of psychoses].
Topics: Amines; Amino Acids; Biochemical Phenomena; Biochemistry; Humans; Methionine; Methylation; Niacinamide; Nicotinic Acids; Penicillamine; Psychopharmacology; Psychotic Disorders; Serotonin; Sulfhydryl Compounds; Tryptamines; Tryptophan | 1970 |
[Levels of isonicotinic acid amide in patients with pulmonary tuberculosis treated with isonicotinic acid hydrazide and ethionamide].
Topics: Ethionamide; Humans; Isoniazid; Niacinamide; Pyridoxine; Time Factors; Tryptophan; Tuberculosis, Pulmonary | 1970 |
Differences in tryptophan exposure between chicken egg-white lysozyme and bovine alpha-lactalbumin.
Topics: Albumins; Alkylation; Animals; Cattle; Chemical Phenomena; Chemistry; Chickens; Muramidase; Niacinamide; Ovalbumin; Oxidation-Reduction; Spectrophotometry; Tryptophan; Urea | 1970 |
The influence of nicotinamide on the urinary excretion of tryptophan metabolites in Hodgkin's disease.
Topics: Adolescent; Adult; Amino Acids; Female; Hodgkin Disease; Humans; Kynurenine; Male; Metabolism; Middle Aged; Niacinamide; ortho-Aminobenzoates; Phenylbutyrates; Pyridoxine; Tryptophan; Xanthurenates | 1970 |
Tryptophan metabolism in the cat: a study with carbon-14-labeled compounds.
Topics: Aminohippuric Acids; Animals; Carbon Dioxide; Carbon Isotopes; Cat Diseases; Cats; Kynurenine; Male; Niacinamide; Nicotinic Acids; ortho-Aminobenzoates; Picolinic Acids; Pyridines; Tryptophan; Urinary Bladder Neoplasms; Xanthurenates | 1971 |
[Tryptophan metabolism in patients with pellagra].
Topics: Acetaminophen; Administration, Oral; Adult; Aged; Child, Preschool; Female; Hartnup Disease; Humans; Hydroxyindoleacetic Acid; Indoleacetic Acids; Kynurenine; Middle Aged; Niacinamide; Pellagra; Tryptamines; Tryptophan | 1970 |
Tryptophan metabolism in patients with pellagra: problem of vitamin B 6 enzyme activity and feedback control of tryptophan pyrrolase enzyme.
Topics: Black or African American; Black People; Feedback; Female; Humans; Kynurenine; Male; Niacinamide; Nicotinic Acids; Pellagra; Pyridines; Pyridones; Pyridoxine; South Africa; Tryptophan; Tryptophan Oxygenase; United States; White People; Xanthurenates | 1971 |
[Neuropsychiatric incidences in antitubercular treatment consisting of isoniazid or isoniazid and ethionamide (8 cases)].
Topics: Acidosis; Adult; Alcoholism; Ammonia; Avitaminosis; Carboxy-Lyases; Chromatography, Paper; Chromatography, Thin Layer; Cognition Disorders; Coma; Drug Synergism; Ethionamide; Female; Humans; Isoniazid; Male; Mental Disorders; Methods; Middle Aged; Niacinamide; Pyridoxine; Renin; Seizures; Transaminases; Tryptophan; Tuberculosis, Pulmonary; Vitamin B 6 Deficiency | 1969 |
The effect of tryptophan metabolites on brain 5-hydroxytryptamine metabolism.
Topics: Alanine; Allopurinol; Amino Acids; Animals; Brain; Brain Chemistry; Carbon Isotopes; Carboxy-Lyases; Histamine; Kynurenic Acid; Kynurenine; Male; Methanol; Methyldopa; Mixed Function Oxygenases; Niacinamide; Nicotinic Acids; Nitroglycerin; ortho-Aminobenzoates; Phenylalanine; Phenylbutyrates; Picolinic Acids; Pyridines; Pyridoxal Phosphate; Pyridoxine; Rats; Serotonin; Sulfuric Acids; Time Factors; Tryptophan; Tryptophan Oxygenase; Xanthurenates | 1970 |
Use of N-methylnicotinamide chloride as a conformational probe in proteins. Identification of the binding sites in chicken egg-white lysozyme and a comparison with bovine-lactalbumin.
Topics: Albumins; Animals; Binding Sites; Bromine; Cattle; Chickens; Chlorides; Egg White; Glucosamine; Imides; Indoles; Mathematics; Micrococcus; Muramidase; Niacinamide; Optical Rotatory Dispersion; Oxidation-Reduction; Spectrophotometry; Succinates; Tryptophan | 1970 |
Conversion of D-tryptophan to nicotinic acid in the rat.
Topics: Animals; Deficiency Diseases; Indoles; Kidney; Kynurenic Acid; Kynurenine; Liver; Male; Niacinamide; Nicotinic Acids; ortho-Aminobenzoates; Pyruvates; Rats; Stereoisomerism; Sulfuric Acids; Tryptophan; Xanthurenates | 1971 |
Food selection studies of rats fed tryptophan-imbalanced diets with or without niacin.
Topics: Amino Acids; Animal Nutritional Physiological Phenomena; Animals; Body Weight; Caseins; Deficiency Diseases; Diet Therapy; Dietary Proteins; Food Preferences; Male; Methionine; Niacinamide; Nicotinic Acids; Protein Deficiency; Rats; Threonine; Tryptophan | 1972 |
[Trichobezoar and pellagra].
Topics: Adolescent; Bezoars; Bone Resorption; Female; Gastric Mucosa; Gastroscopy; Humans; Niacinamide; Pellagra; Skin Manifestations; Stomach; Stomach Diseases; Tryptophan | 1971 |
[Absence of change in urinary levels of metabolites of tryptophan and tobacco].
Topics: Adult; Female; Humans; Kynurenine; Male; Niacinamide; Nicotiana; ortho-Aminobenzoates; Phenols; Plants, Toxic; Smoking; Tryptophan | 1971 |
Pellagra and the carcinoid syndrome.
Topics: Digitalis Glycosides; Diuretics; Female; Fluorouracil; Humans; Malignant Carcinoid Syndrome; Middle Aged; Niacinamide; Nicotinic Acids; Pellagra; Tryptophan | 1972 |
Binding of N-methyl nicotinamide chloride by tryptophan residues of -lactalbumin.
Topics: Acetates; Albumins; Energy Transfer; Ethanol; Hydrogen-Ion Concentration; Methylation; Muramidase; Niacinamide; Protein Binding; Protein Denaturation; Spectrophotometry; Tryptophan; Ultraviolet Rays | 1972 |
Tryptophan-niacin interrelationships during acute fasting and caloric restriction in humans.
Topics: Adolescent; Adult; Creatinine; Dietary Carbohydrates; Dietary Proteins; Fasting; Humans; Male; Middle Aged; Niacinamide; Nicotinic Acids; Nitrogen; Nutrition Disorders; Nutritional Requirements; Protein-Energy Malnutrition; Proteins; Time Factors; Tryptophan | 1972 |
The influence of simultaneous administration of vitamin B 6 and nicotinamide on tryptophan metabolism in Hodgkin's disease.
Topics: Acylation; Administration, Oral; Aminohippuric Acids; Hodgkin Disease; Humans; Hydroxylation; Infusions, Parenteral; Kynurenic Acid; Kynurenine; Methyl Ethers; Niacinamide; ortho-Aminobenzoates; Pyridoxine; Tryptophan; Xanthurenates | 1972 |
The induction of host tryptophan oxygenase by staphylococcal infection. 1.
Topics: Adrenal Glands; Adrenalectomy; Animals; Enzyme Induction; Liver; Male; Mice; Niacinamide; Pyridines; Staphylococcal Infections; Staphylococcus; Tryptophan; Tryptophan Oxygenase | 1972 |
[Biosynthesis of nicotinic acid in Rhodotorula glutinis].
Topics: Kynurenine; Mitosporic Fungi; Mutation; Neurospora; Niacinamide; Nicotinic Acids; ortho-Aminobenzoates; Radiation Genetics; Tryptophan; Ultraviolet Rays | 1972 |
Behaviour of the glycolytic system of rat brain and kidney in vivo after in hibition of the glucosephosphate isomerase. II. Substrate concentrations under the influence of ischemia, 6-aminonicotinamide, and 2-deoxyglucose.
Topics: Animals; Brain; Gluconates; Gluconeogenesis; Glucose; Glucose-6-Phosphate Isomerase; Glycolysis; Ischemia; Kidney; Niacinamide; Phosphofructokinase-1; Rats; Tryptophan | 1972 |
Tryptophan metabolism in man (with special reference to rheumatoid arthritis and scleroderma).
Topics: Arthritis, Rheumatoid; Aspirin; Cystinuria; Drug Synergism; Edetic Acid; Humans; Kynurenic Acid; Kynurenine; Methods; Niacinamide; Penicillamine; Pyridoxine; Scleroderma, Systemic; Tryptophan; Xanthurenates | 1973 |
Efficiency of conversion of tryptophan to niacin in humans.
Topics: Adult; Amino Acids; Body Weight; Creatinine; Diet; Dose-Response Relationship, Drug; Female; Humans; Male; Niacinamide; Nicotinic Acids; Nitrogen; Nutritional Physiological Phenomena; Pyridinium Compounds; Tryptophan | 1973 |
Topography of mouse 2.5S nerve growth factor. Reactivity of tyrosine and tryptophan.
Topics: Animals; Biological Assay; Computers; Goats; Insulin; Iodine Isotopes; Kinetics; Macromolecular Substances; Male; Mice; Models, Chemical; Nerve Growth Factors; Niacinamide; Nitro Compounds; Nitrobenzenes; Protein Conformation; Rabbits; Radioimmunoassay; Sensory Receptor Cells; Submandibular Gland; Succinimides; Sulfonic Acids; Tryptophan; Tyrosine | 1973 |
[Efficacy of niacin in maize or oat diets].
Topics: Amino Acids; Animals; Body Weight; Dietary Proteins; Edible Grain; Feces; Liver; Lysine; Niacinamide; Nicotinic Acids; Nitrogen; Organ Size; Plant Proteins; Rats; Threonine; Tryptophan; Zea mays | 1973 |
Binding of N1-methylnicotinamide chloride to Trp 62 linked with the ionization of Glu 35 of hen egg-white lysozyme.
Topics: Animals; Chickens; Circular Dichroism; Egg White; Electron Transport; Glucose; Humans; Hydrogen-Ion Concentration; Muramidase; Niacinamide; Peptide Fragments; Protein Binding; Tryptophan | 1973 |
[Tryptophan metabolism in screening metabolic diseases of the newborn].
Topics: Amino Acid Metabolism, Inborn Errors; Evaluation Studies as Topic; Female; Humans; Infant, Newborn; Infant, Newborn, Diseases; Infant, Premature; Liver; Mass Screening; Metabolism, Inborn Errors; Methods; Niacinamide; Pregnancy; Tryptophan; Tryptophan Oxygenase | 1973 |
The effect of hormones and vitamin B6 on urinary excretion of metabolites of the kynurenine pathway.
Topics: Adolescent; Adult; Aged; Androgens; Animals; Estrogens; Female; Humans; Hydrocortisone; Hydrolases; Indican; Isoniazid; Kynurenine; Male; Menstruation; Middle Aged; Niacinamide; Nicotinic Acids; ortho-Aminobenzoates; Pregnancy; Pyridones; Pyridoxine; Rats; Transaminases; Tryptophan | 1974 |
Quenching of tryptophyl fluorescence in proteins by n'-methylnicotinamide chloride.
Topics: Binding Sites; Hydrogen-Ion Concentration; Mathematics; Niacinamide; Protein Binding; Proteins; Spectrometry, Fluorescence; Tryptophan | 1974 |
[Role of some metabolic changes in the development of complications of pregnancy and labor in women with rheumatic heart disease].
Topics: Amino Acids; Calcium; Computers; Cysteine; Cystine; Female; Glutamine; Humans; Isoleucine; Leucine; Magnesium; Methionine; Niacinamide; Obstetric Labor Complications; Phenylalanine; Potassium; Pregnancy; Pregnancy Complications, Cardiovascular; Rheumatic Heart Disease; Sodium; Tryptophan; Tyrosine; Valine; Vitamin E | 1974 |
Excretion of 5-hydroxyindole acetic acid and n1-methylnicotinamide in advanced cancer patients.
Topics: Aged; Humans; Hydroxyindoleacetic Acid; Middle Aged; Neoplasms; Niacinamide; Tryptophan | 1973 |
Studies on tryptophan-niacin metabolism in streptozotocin diabetic rats.
Topics: Animals; Diabetes Mellitus; Diet; Eating; Fluorometry; Male; Niacinamide; Nicotinic Acids; Rats; Streptozocin; Tryptophan; Xanthurenates | 1974 |
Effect of tryptophan deficiency on the urinary excretion of tryptophan and niacin metabolites in rats.
Topics: Animal Nutritional Physiological Phenomena; Animals; Deficiency Diseases; Female; Methionine; Niacinamide; Nicotinic Acids; Nitrogen; Pyridones; Rats; Riboflavin; Tryptophan; Xanthurenates | 1974 |
Metabolic relationship between tryptophan, vitamin B6 and nicotinic acid in rats.
Topics: Animal Nutritional Physiological Phenomena; Animals; Body Weight; Deficiency Diseases; Diet; Female; Niacinamide; Nicotinic Acids; Nitrogen; Pyridones; Pyridoxine; Rats; Tryptophan; Vitamin B 6 Deficiency; Xanthurenates | 1974 |
[Proceedings: Isolation and quantitative determination of tryptophan metabolites with pyridine- and indole-structures in urine].
Topics: Automation; Chromatography, DEAE-Cellulose; Chromatography, Gas; Chromatography, Gel; Chromatography, Thin Layer; Indoles; Niacinamide; Nicotinic Acids; Picolinic Acids; Pyridines; Tryptophan | 1972 |
[Proceedings: Tryptophan metabolism, bladder carcinoma and smoking habits].
Topics: 3-Hydroxyanthranilic Acid; Carcinoma; Humans; Kynurenine; Niacinamide; Smoking; Tryptophan; Urinary Bladder Neoplasms | 1972 |
Measurements of tryptophan pyrrolase in vivo: induction and feedback inhibition.
Topics: Adrenalectomy; Carbon Dioxide; Carbon Isotopes; Enzyme Induction; Feedback; Hypophysectomy; Liver; NAD; Niacinamide; Nicotinic Acids; Tryptophan; Tryptophan Oxygenase | 1967 |
The pathway of biosynthesis of nicotinamide-adenine dinucleotide in rat mammary gland.
Topics: Animals; Female; Glucosyltransferases; Kinetics; Lactation; Mammary Glands, Animal; Models, Biological; NAD; Niacinamide; Nicotinic Acids; Nucleotides; Nucleotidyltransferases; Pregnancy; Rats; Tryptophan | 1968 |
The biosynthesis of NAD in the liver of irradiated mice.
Topics: Adrenalectomy; Animals; Carbon Isotopes; Chromatography; Hydrocortisone; Hydrolases; Liver; Mice; Mixed Function Oxygenases; N-Glycosyl Hydrolases; NAD; Niacinamide; Nicotinic Acids; Nucleotides; Radiation Effects; Transaminases; Tryptophan; Tryptophan Oxygenase | 1968 |
The influence of adrenocortical hormones and vitamins upon tryptophan metabolism in man.
Topics: Adrenocorticotropic Hormone; Adult; Benzoates; Breast Neoplasms; Female; Humans; Hydrocortisone; Kynurenine; Liver; Male; Niacinamide; Pyridoxine; Riboflavin; Stimulation, Chemical; Stress, Physiological; Tryptophan; Tryptophan Oxygenase; Xanthurenates | 1968 |
Studies on the biosynthesis of NAD by a direct method of tracing metabolism in vivo.
Topics: Animals; Carbon Isotopes; Liver; Mice; NAD; Niacinamide; Nicotinic Acids; Pyridines; Tryptophan | 1967 |
Studies on the biosynthesis of nicotinamide adenine dinucleotide (NAD) in mammals and its regulatory mechanism. II.
Topics: Adenosine Triphosphate; Animals; Carbon Isotopes; Chromatography; Chromatography, Paper; Digestive System; Liver; Mice; NAD; Niacinamide; Nicotinic Acids; Pyridines; Radiometry; Tryptophan | 1967 |
The biosynthesis and degradation of nicotinamide-adenine dinucleotide during cick embryonic development.
Topics: Aging; Animals; Carbon Isotopes; Chick Embryo; N-Glycosyl Hydrolases; NAD; Niacinamide; Nicotinic Acids; Phosphoric Monoester Hydrolases; Tryptophan | 1969 |
Tryptophan and nitrogen metabolism and pregnancy of the rat as affected by dietary supplementations with leucine and with amino acid mixtures.
Topics: Amino Acids; Animals; Deficiency Diseases; Diet; Dietary Proteins; Feces; Female; Fetal Death; Fetus; Isoleucine; Kidney; Leucine; Liver; Male; Maternal-Fetal Exchange; NAD; Niacinamide; Nicotinic Acids; Nitrogen; Pregnancy; Pregnancy, Animal; Rats; Tryptophan; Valine | 1970 |
Effect of hormones on the biosynthesis of nicotinic acid from tryptophan in man.
Topics: Carboxy-Lyases; Chlorotrianisene; Chromatography, Ion Exchange; Diethylstilbestrol; Humans; Hydrocortisone; Male; NAD; Niacinamide; Nicotinic Acids; Picolinic Acids; Progestins; Prostatic Neoplasms; Pyridones; Tryptophan | 1970 |
NAD biosynthesis in polymorphonuclear leucocytes of guinea pigs. Comparative studies on different NAD precursors in intact cells.
Topics: Animals; Carbon Isotopes; Cell-Free System; Guinea Pigs; Leukocytes; NAD; Niacinamide; Nicotinic Acids; Nucleotides; Pyridines; Tryptophan | 1970 |
Hormonal alteration of efficiency of conversion of tryptophan to urinary metabolites of niacin in man.
Topics: Chlorotrianisene; Contraceptives, Oral; Depression, Chemical; Diethylstilbestrol; Humans; Hydrocortisone; Male; NAD; Niacinamide; Nicotinic Acids; Norethynodrel; Prostatic Diseases; Pyridones; Stimulation, Chemical; Tryptophan | 1971 |
Nicotinamide adenine dinucleotide in developing chick embryo.
Topics: Aging; Alcohol Oxidoreductases; Animals; Chick Embryo; Egg White; Egg Yolk; Female; Hydrogen-Ion Concentration; Liver; NAD; Niacinamide; Nicotinic Acids; Ovalbumin; Pyridines; Tryptophan | 1971 |
[Nutritional requirements of 4 species of Trichophyton verrucosum].
Topics: Alkanesulfonates; Aspartic Acid; Buffers; Culture Media; Glucose; Glutamates; Hydrogen-Ion Concentration; Inositol; Leucine; Morpholines; Niacinamide; Nicotinic Acids; Spores, Fungal; Temperature; Thiamine; Trichophyton; Tryptophan; Vitamins | 1972 |
Abnormal tryptophan metabolism in patients with scurvy-type skin.
Topics: Acetates; Adult; Aminohippuric Acids; Black or African American; Black People; Ethnicity; Glucuronates; Hemosiderosis; Humans; Indoles; Kynurenic Acid; Kynurenine; Male; NAD; Niacinamide; Nicotinic Acids; ortho-Aminobenzoates; Pyridines; Scurvy; South Africa; Sulfuric Acids; Tryptophan; Xanthurenates | 1973 |
Metabolism of pyridine nucleotides and its relation to DNA synthesis in regenerating mouse liver.
Topics: Adenine Nucleotides; Animals; DNA; Female; Hepatectomy; Hydrolases; Kynurenine; Liver; Liver Regeneration; Mice; Mice, Inbred Strains; NAD; Niacinamide; Nicotinamide Mononucleotide; Nucleotidyltransferases; ortho-Aminobenzoates; Pentosyltransferases; Transaminases; Tryptophan | 1972 |
Pyridine nucleotide biosynthesis in Claviceps.
Topics: Ascomycota; Carbon Isotopes; Chromatography, Paper; Chromatography, Thin Layer; Culture Media; Hydrolysis; NAD; Niacinamide; Nicotinic Acids; Nucleotides; Pyridines; Solvents; Time Factors; Tryptophan | 1973 |
[Significance of nicotinic acid amide for the biosynthesis of NAD in the isolated perfused rat liver].
Topics: Animals; In Vitro Techniques; Liver; NAD; Niacinamide; Nicotinic Acids; Perfusion; Rats; Tryptophan | 1972 |
[Proceedings: NAD biosynthesis from tryptophan in mouse liver].
Topics: Animals; DNA; Hydrolases; Kynurenine; Liver; Liver Regeneration; Mice; NAD; Niacinamide; Nicotinic Acids; Thymidine; Tryptophan | 1972 |
Feedback control of rat liver tryptophan pyrrolase. I. End product inhibition of trytophan pyrrolase activity.
Topics: Animals; Buffers; Chromatography; Electrophoresis; Enzymes; Hot Temperature; Kinetics; Liver; Molecular Weight; NAD; NADP; Niacinamide; Nicotinic Acids; Nucleotides; Oxidoreductases; Rats; Tryptophan; Ultracentrifugation | 1967 |
Regulation of NAD biosynthesis via the pyridine nucleotide cycle.
Topics: Adenosine Triphosphate; Animals; Bacillus; Carbon Isotopes; Escherichia coli; Hypophysectomy; In Vitro Techniques; Liver; NAD; NADP; Niacinamide; Nicotinic Acids; Nucleotides; Pyridines; Pyrophosphatases; Rats; Transferases; Tryptophan; Tryptophan Oxygenase | 1968 |
Prevention and remission by adrenocortical steriods of nicotinamide deficiency disease. II. A study of the mechanism.
Topics: Adrenal Cortex Hormones; Animals; Corticosterone; Deficiency Diseases; NAD; NADP; Niacinamide; Nucleotides; Pyridines; Rats; Tryptophan | 1968 |
Tryptophan metabolism of rats fed a threonine-free amino acid diet.
Topics: Alanine Transaminase; Amino Acids; Animals; Body Weight; Caseins; Diet; Lipids; Liver; Male; Niacinamide; Nicotinic Acids; Nitrogen; Rats; Threonine; Tryptophan; Tryptophan Oxygenase; Tyrosine Transaminase | 1969 |
Effect in man of the addition of tryptophan oniacin to the diet on the excretion of their metabolites.
Topics: Creatinine; Diet; Female; Humans; Kynurenic Acid; NAD; NADP; Niacinamide; Nicotinic Acids; Nitrogen; Pyridones; Tryptophan; Urea; Xanthurenates | 1969 |
The binding of -ketoglutarate in a binary complex and in a ternary complex with NADP + by L-glutamate dehydrogenase.
Topics: Animals; Binding Sites; Catalysis; Cattle; Chemical Phenomena; Chemistry; Glutamate Dehydrogenase; Glutamates; Ketoglutaric Acids; Kinetics; Liver; Mathematics; Molecular Weight; NADP; Niacinamide; Oxidation-Reduction; Protein Binding; Spectrophotometry, Ultraviolet; Structure-Activity Relationship; Tryptophan | 1972 |
Influence of chlorpromazine, reserpine and lithium carbonate upon the induction of the tyrosine aminotransferase (TAT) in the rat liver.
Topics: Adrenalectomy; Animals; Chlorpromazine; Enzyme Induction; Female; Lithium; Lithium Carbonate; Liver; Methionine; Niacinamide; Prednisolone; Rats; Rats, Inbred Strains; Reserpine; Tryptophan; Tyrosine Transaminase | 1983 |
Induction of tyrosine aminotransferase under the influence of D-galactosamine.
Topics: Animals; Enzyme Induction; Galactosamine; Hydrocortisone; Kinetics; Liver; Methionine; Niacinamide; Rats; Tryptophan; Tyrosine; Tyrosine Transaminase | 1984 |
Similarity between the action of nicotinamide and diazepam on neurotransmitter metabolism in the rat [proceedings].
Topics: Alkynes; Aminocaproates; Amygdala; Animals; Brain; Diazepam; gamma-Aminobutyric Acid; Hippocampus; Hydroxyindoleacetic Acid; Male; Niacinamide; Organ Specificity; Rats; Serotonin; Tryptophan | 1980 |
Pharmacokinetics of tryptophan, renal handling of kynurenine and the effect of nicotinamide on its appearance in plasma and urine following L-tryptophan loading of healthy subjects.
Topics: Adult; Female; Humans; Kidney; Kinetics; Kynurenine; Male; Niacinamide; Tryptophan; Tryptophan Oxygenase | 1981 |
Tryptophan metabolism in alcoholic pellagra patients: measurements of urinary metabolites and histochemical studies of related muscle enzymes.
Topics: 3-Hydroxyanthranilic Acid; Adolescent; Adult; Alcoholism; Aspartate Aminotransferases; Glycerolphosphate Dehydrogenase; Humans; Male; Middle Aged; Muscles; Niacinamide; Nutrition Disorders; Oxidoreductases; Pellagra; Pyridones; Tryptophan | 1982 |
The differences in growth and activity of the tryptophan-NAD pathway between Wistar and Sprague Dawley strains of rats fed on tryptophan-limited diet.
Topics: Animals; Carboxy-Lyases; Growth; Indoleamine-Pyrrole 2,3,-Dioxygenase; Male; NAD; Niacin; Niacinamide; Nicotinic Acids; Quinolinic Acids; Rats; Rats, Inbred Strains; Species Specificity; Tryptophan; Tryptophan Oxygenase | 1982 |
Probable mechanisms of regulation of the utilization of dietary tryptophan, nicotinamide and nicotinic acid as precursors of nicotinamide nucleotides in the rat.
Topics: Animals; Diet; Liver; Male; NAD; Niacin; Niacinamide; Nicotinamidase; Nicotinic Acids; Pentosyltransferases; Quinolinic Acids; Rats; Rats, Inbred Strains; Tryptophan | 1982 |
Effect of L-leucine-supplemented diet on the nicotinamide adenine dinucleotide content of rat liver.
Topics: Animals; Diet; Dose-Response Relationship, Drug; Intestinal Absorption; Leucine; Liver; Male; NAD; Niacinamide; Nicotinic Acids; Pentosyltransferases; Rats; Rats, Inbred Strains; Tryptophan; Tryptophan Oxygenase | 1982 |
Effect of L-tryptophan and L-leucine on biosynthesis of niacin-related compounds in Saccharomyces carlsbergensis.
Topics: Culture Media; Leucine; NAD; NADP; Niacin; Niacinamide; Nicotinamidase; Pentosyltransferases; Saccharomyces; Tryptophan | 1982 |
The effects of a dietary excess of leucine on the synthesis of nicotinamide nucleotides in the rat.
Topics: Animals; Diet; Enzyme Activation; Hydrolases; Kynurenine; Leucine; Liver; Male; NADP; Niacin; Niacinamide; Pellagra; Rats; Rats, Inbred Strains; Tryptophan; Tryptophan Oxygenase | 1983 |
Effects of chronic ethanol feeding on the metabolism of tryptophan and nicotinamide in rats.
Topics: Animals; Diet; Ethanol; Male; Niacin; Niacinamide; Oxidation-Reduction; Rats; Rats, Inbred Strains; Tryptophan | 1983 |
Teratogenic effects of cholinergic insecticides in chick embryos--IV. The role of tryptophan in protecting against limb deformities.
Topics: Animals; Cell Division; Chick Embryo; Diazinon; Extremities; Insecticides; Kinetics; Limb Deformities, Congenital; Niacinamide; Organ Culture Techniques; Proteoglycans; Structure-Activity Relationship; Teratogens; Tryptophan | 1983 |
[Effect of L-tryptophan, nicotinamide, L-methionine and 1-methylnicotinamide on the embryotoxic effect of various substances].
Topics: 6-Aminonicotinamide; Animals; Cyclophosphamide; Drug Interactions; Embryo, Mammalian; Female; Hydroxyurea; Mercaptopurine; Methionine; Mice; Niacinamide; Pregnancy; Tryptophan | 1983 |
Inhibition of tryptophan metabolism by oestrogens in the rat: a factor in the aetiology of pellagra.
Topics: Animals; Castration; Estrone; Female; Liver; NAD; NADP; Niacinamide; Pellagra; Rats; Rats, Inbred Strains; Tryptophan | 1984 |
The state of the single tryptophyl of the black-eyed pea trypsin and chymotrypsin inhibitor by charge transfer with N-methylnicotinamide chloride.
Topics: Chemical Phenomena; Chemistry; Chymotrypsin; Niacinamide; Potassium Chloride; Seeds; Spectrophotometry, Ultraviolet; Structure-Activity Relationship; Trypsin Inhibitors; Tryptophan | 1983 |
Treatment of Hartnup disease with nicotinic acid.
Topics: Cerebellar Ataxia; Child; Female; Hartnup Disease; Humans; Male; Niacin; Niacinamide; Pellagra; Tryptophan | 1984 |
Effect of combined administration of tryptophan with putative tryptophan pyrrolase inhibitors, DL-3-pyridylalanine, allopurinol or nicotinamide, on brain serotonin concentration.
Topics: Alanine; Allopurinol; Animals; Brain Chemistry; Liver; Male; Niacinamide; Rats; Rats, Inbred Strains; Serotonin; Tryptophan; Tryptophan Oxygenase | 1984 |
Influence of D-galactosamine upon the NAD-metabolism in rat liver.
Topics: Adrenalectomy; Animals; Chemical and Drug Induced Liver Injury; Galactosamine; Liver; Methionine; NAD; Niacinamide; Nucleotidyltransferases; Poly(ADP-ribose) Polymerases; Rats; Rats, Inbred Strains; Tryptophan | 1983 |
Nicotinamide-induced hepatic microsomal mixed function oxidase system in rats.
Topics: Aminopyrine N-Demethylase; Animals; Aryl Hydrocarbon Hydroxylases; Cytochromes; Female; Glucuronosyltransferase; Kinetics; Male; Methionine; Microsomes, Liver; Mixed Function Oxygenases; NADPH-Ferrihemoprotein Reductase; Niacinamide; Oxidoreductases; Puromycin; Rats; Tryptophan | 1980 |
Effects of benserazide, carbidopa and isoniazid administration on tryptophan-nicotinamide nucleotide metabolism in the rat.
Topics: Animals; Benserazide; Body Weight; Carbidopa; Diet; Hydrazines; Isoniazid; Liver; Male; Niacinamide; Rats; Ribonucleotides; Time Factors; Tryptophan | 1980 |
Excretion of tryptophan-niacin metabolites by young men: effects of tryptophan, leucine, and vitamin B6 intakes.
Topics: Adult; Dose-Response Relationship, Drug; Humans; Leucine; Male; Niacinamide; Nicotinic Acids; Nitrogen; Pyridoxine; Quinolinic Acids; Tryptophan | 1980 |
Familial pellagra-like skin rash with neurological manifestations.
Topics: Adolescent; Humans; Male; Nervous System Diseases; Niacinamide; Pellagra; Skin Diseases; Tryptophan | 1981 |
Regulation of tryptophan-niacin metabolism in diabetic rats.
Topics: Animals; Carboxy-Lyases; Diabetes Mellitus, Experimental; Insulin; Liver; Male; Niacinamide; Nicotinic Acids; Picolinic Acids; Rats; Tryptophan | 1980 |
The influence of nicotinamide, tryptophan, and methionine upon galactosamine-induced effects in the liver.
Topics: Alanine Transaminase; Animals; Aspartate Aminotransferases; Chemical and Drug Induced Liver Injury; Drug Interactions; Female; Galactosamine; Liver; Male; Methionine; Niacinamide; Prednisolone; Rats; Tryptophan | 1981 |
Tryptophan in the treatment of depression.
Topics: Allopurinol; Antidepressive Agents, Tricyclic; Ascorbic Acid; Bipolar Disorder; Depression; Electroconvulsive Therapy; Humans; Monoamine Oxidase Inhibitors; Niacinamide; Pyridoxine; Tryptophan | 1981 |
Effect of leucine on tryptophan metabolism.
Topics: Adult; Humans; Leucine; Male; Niacinamide; Pyridoxine; Quinolinic Acids; Socioeconomic Factors; Tryptophan | 1982 |
Effect of tryptophan intake on oxidation of [7a-14C]tryptophan and urinary excretion on N1-methylnicotinamide in the rat.
Topics: Animals; Body Weight; Dose-Response Relationship, Drug; Male; Niacin; Niacinamide; Nicotinic Acids; Nutritional Requirements; Oxidation-Reduction; Rats; Stereoisomerism; Tryptophan | 1982 |
Effect of nicotinamide intake on urinary excretion of N1-methylnicotinamide and oxidation of [7a-14C]tryptophan in the rat.
Topics: Animals; Dose-Response Relationship, Drug; Male; Niacin; Niacinamide; Nicotinic Acids; Oxidation-Reduction; Rats; Tryptophan | 1982 |
Effect of dietary linoleic acid on the tryptophan-niacin metabolism in streptozotocin diabetic rats.
Topics: Animals; Body Weight; Diabetes Mellitus, Experimental; Diet; Eating; Linoleic Acid; Linoleic Acids; Male; Niacin; Niacinamide; Rats; Rats, Sprague-Dawley; Tryptophan | 1995 |
Quantitative efficacy of niacin sources for chicks: nicotinic acid, nicotinamide, NAD and tryptophan.
Topics: Analysis of Variance; Animal Feed; Animals; Biological Assay; Chickens; Dose-Response Relationship, Drug; Eating; Liver; Male; Muscles; NAD; NADP; Niacin; Niacinamide; Regression Analysis; Tryptophan; Weight Gain | 1993 |
Effects of vitamin B6 deficiency on the conversion ratio of tryptophan to niacin.
Topics: Animals; Diet; Feeding Behavior; Kynurenic Acid; Niacin; Niacinamide; Rats; Rats, Wistar; Tryptophan; Vitamin B 6 Deficiency; Weight Gain; Xanthurenates | 1995 |
Purine and pyridine nucleotide metabolism in the erythrocytes of patients with Rett syndrome.
Topics: Adolescent; Adult; Brain; Child; Child, Preschool; Enzyme Precursors; Erythrocyte Count; Female; Humans; Male; Niacinamide; Purine Nucleotides; Pyridines; Rett Syndrome; Tryptophan | 1995 |
Decreases in aggression in tryptophan-supplemented broiler breeder males are not due to increases in blood niacin levels.
Topics: Aggression; Animals; Behavior, Animal; Chickens; Food, Fortified; Male; Niacin; Niacinamide; Tryptophan | 1996 |
Increased conversion ratio of tryptophan to niacin by the administration of clofibrate, a hypolipidemic drug, to rats.
Topics: Animals; Clofibrate; Hypolipidemic Agents; Liver; Male; NAD; Niacin; Niacinamide; Rats; Rats, Wistar; Tryptophan; Weaning; Weight Gain | 1996 |
Effects of feeding tryptophan-limiting diets on the conversion ratio of tryptophan to niacin in rats.
Topics: Amino Acids; Animals; Caseins; Diet; Eating; Gelatin; Liver; Male; Niacin; Niacinamide; Rats; Rats, Wistar; Tryptophan; Weight Gain; Zein | 1996 |
Change of tryptophan-niacin metabolism in D-galactosamine-induced liver injury in rat.
Topics: Alanine Transaminase; Animals; Aspartate Aminotransferases; Carboxy-Lyases; Galactosamine; Indoleamine-Pyrrole 2,3,-Dioxygenase; Liver; Male; Niacin; Niacinamide; Rats; Rats, Wistar; Tryptophan; Tryptophan Oxygenase | 1997 |
Effects of sex hormones on the metabolism of tryptophan to niacin and to serotonin in male rats.
Topics: Animals; Appetite; Body Weight; Brain; Carboxy-Lyases; Eating; Estrone; Female; Gonadal Steroid Hormones; Hydroxyindoleacetic Acid; Liver; Male; Niacin; Niacinamide; Pellagra; Pregnancy; Rats; Rats, Wistar; Serotonin; Testosterone; Tryptophan | 1997 |
Increased conversion ratio of tryptophan to niacin in severe food restriction.
Topics: Animals; Food Deprivation; Kynurenic Acid; Male; Niacin; Niacinamide; Rats; Rats, Wistar; Tryptophan; Xanthurenates | 1998 |
Active site modifications in a double mutant of liver alcohol dehydrogenase: structural studies of two enzyme-ligand complexes.
Topics: Alanine; Alcohol Dehydrogenase; Alcohol Oxidoreductases; Animals; Binding Sites; Coenzymes; Crystallography, X-Ray; Horses; Ligands; Liver; Models, Molecular; NAD; Niacinamide; Phenylalanine; Structure-Activity Relationship; Substrate Specificity; Tryptophan; Valine | 1998 |
[Pellagra (deficiency of vitamin B3 or of the amino acid tryptophan): a disease still extant in the Netherlands].
Topics: Alcoholism; Amino Acids, Essential; Dietary Proteins; Female; Humans; Middle Aged; Niacinamide; Pellagra; Skin Diseases, Vesiculobullous; Treatment Outcome; Tryptophan | 1998 |
Evidence for increased de novo synthesis of NAD in immune-activated RAW264.7 macrophages: a self-protective mechanism?
Topics: Animals; Benzamides; Cell Line; Dexamethasone; Enzyme Inhibitors; Interferon-gamma; Macrophage Activation; Macrophages; Mice; NAD; NG-Nitroarginine Methyl Ester; Niacinamide; Nitric Oxide Synthase; Poly(ADP-ribose) Polymerase Inhibitors; Quinolinic Acid; Recombinant Proteins; Tryptophan; Tryptophan Oxygenase | 1999 |
Tryptophan-niacin metabolism in liver cirrhosis rat caused by carbon tetrachloride.
Topics: Alanine Transaminase; Animals; Aspartate Aminotransferases; Carbon Tetrachloride; Liver Cirrhosis, Experimental; Male; Niacin; Niacinamide; Rats; Rats, Wistar; Tryptophan; Weight Gain | 1999 |
Nicotinamide (vitamin B3) as an effective antioxidant against oxidative damage in rat brain mitochondria.
Topics: Animals; Antioxidants; Ascorbic Acid; Brain; Buffers; Deuterium; Female; Iron; Isonicotinic Acids; Light; Lipid Peroxidation; Methylene Blue; Mitochondria; Niacinamide; Oxidative Stress; Photochemistry; Proteins; Rats; Rats, Wistar; Reactive Oxygen Species; Thiobarbituric Acid Reactive Substances; Tryptophan; Vitamin E | 1999 |
NADPH-cytochrome P450 oxidoreductase. Structural basis for hydride and electron transfer.
Topics: Amino Acid Substitution; Animals; Catalysis; Crystallography, X-Ray; Electron Transport; Flavin Mononucleotide; Flavin-Adenine Dinucleotide; Humans; Hydrogen Bonding; Models, Molecular; Mutagenesis, Site-Directed; NADP; NADPH-Ferrihemoprotein Reductase; Niacinamide; Protein Conformation; Rats; Recombinant Proteins; Serine; Spectrophotometry; Tryptophan | 2001 |
[Formation of pyridine-nucleotides from tryptophan and from nicotinamide in human erythrocytes in vitro].
Topics: Erythrocytes; Humans; In Vitro Techniques; Niacin; Niacinamide; Nucleotides; Tryptophan | 1952 |
Significance of enzymatically catalyzed exchange reactions in chemotherapy.
Topics: Animals; Coenzymes; Liver; Mice; Neoplasms; Niacin; Niacinamide; Nicotinic Acids; Pyridines; Tryptophan | 1954 |
Some aspects of tryptophan metabolism in human subjects. I. Nitrogen balances, blood pyridine nucleotides and urinary excretion of N1-methylnicotinamide and N1-methyl-2-pyridone-5-carboxamide on a low-niacin diet.
Topics: Diet; Humans; Niacin; Niacinamide; Nitrogen; Nucleosides; Nucleotides; Pyridones; Tryptophan; Vitamins | 1958 |
Tryptophan-nicotinic acid metabolism in patients with tumours of the bladder. Changes in the excretory products after treatment with nicotinamide and vitamin B6.
Topics: Humans; Neoplasms; Niacin; Niacinamide; Nicotinic Acids; Tryptophan; Urinary Bladder Neoplasms; Vitamin B 6 | 1961 |
[Studies on the metabolic conversion of tryptophan into nicotinic acid in individuals with tumors of the bladder. Modifications in the urinary excretory picture after the administration of nicotinamide and vitamin B6].
Topics: Humans; Neoplasms; Niacin; Niacinamide; Nicotinic Acids; Tryptophan; Urinary Bladder Neoplasms; Vitamin B 6 | 1960 |
Tryptophan and nicotinic acid metabolism in patients with cirrhosis of the liver.
Topics: Liver Cirrhosis; Niacin; Niacinamide; Nicotinic Acids; Tryptophan | 1962 |
Hartnup disease.
Topics: Amino Acids; Hartnup Disease; Humans; Indoles; Metabolic Diseases; Niacin; Niacinamide; Pellagra; Proteins; Tryptophan | 1963 |
The effect of the oral administration of leucine on the metabolism of tryptophan.
Topics: Administration, Oral; Leucine; Lysine; Niacin; Niacinamide; Nicotinic Acids; Pellagra; Quinolines; Tryptophan | 1963 |
EFFECTS OF BACTERIAL ENDOTOXINS ON METABOLISM. VI. THE ROLE OF TRYPTOPHAN PYRROLASE IN RESPONSE OF MICE TO ENDOTOXIN.
Topics: Adrenalectomy; Animals; Cortisone; Endotoxins; Liver; Mice; NAD; Niacin; Niacinamide; Nicotinic Acids; Nucleotides; Peroxidases; Polysaccharides; Polysaccharides, Bacterial; Proteins; Research; Salmonella typhimurium; Serratia marcescens; Tryptophan; Tryptophan Oxygenase | 1963 |
STUDIES ON MORPHINE. IV. EFFECTS OF SOME METABOLITES ON THE "ABSTINENCE SYNDROME" TO MORPHINE ON WHITE MICE.
Topics: Alanine; Cyanides; Fluoroacetates; Glutamine; Iodoacetates; Mice; Morphine; NAD; Nalorphine; Niacin; Niacinamide; Pharmacology; Pyridines; Pyridoxine; Research; Serine; Toxicology; Tryptophan | 1963 |
[THE CLINICAL FORM OF HARTNUP'S DISEASE].
Topics: Diagnosis, Differential; Friedreich Ataxia; Hartnup Disease; Humans; Indican; Indoles; Infant; Metabolic Diseases; Niacin; Niacinamide; Pellagra; Tryptophan; Urine | 1963 |
[VITAMIN B DEFICIENCIES IN PULMONARY TUBERCULOUS PATIENTS TREATED BY ANTIBACILLARY MEDICATIONS].
Topics: Aspartate Aminotransferases; Clinical Enzyme Tests; Dermatology; Diagnosis; Gynecomastia; Humans; Isoniazid; Male; Mental Disorders; Neurologic Manifestations; Niacin; Niacinamide; Pyridoxine; Toxicology; Tryptophan; Tuberculosis; Tuberculosis, Pulmonary; Urine; Vitamin B Deficiency | 1963 |
THE ROLE OF MAIZE IN THE PATHOGENESIS OF PELLAGRA: EFFECT OF LEUCINE ON N'-METHYLNICOTINAMIDE EXCRETION IN HUMAN ADULTS.
Topics: Adult; Edible Grain; Humans; Leucine; Niacin; Niacinamide; Nicotinic Acids; Nitrogen; Pellagra; Toxicology; Tryptophan; Urine; Zea mays | 1963 |
BIOCHEMICAL ASPECTS OF THE HARTNUP DISEASE. I. RESULTS OF INTRAVENOUS AND ORAL TRYPTOPHAN LOADING TESTS IN A CASE OF HARTNUP DISEASE.
Topics: Amino Acid Metabolism, Inborn Errors; Biomedical Research; Friedreich Ataxia; Genetics, Medical; Hartnup Disease; Humans; Indican; Indoles; Infant; Intestines; Metabolic Diseases; Neomycin; Niacin; Niacinamide; Nicotinic Acids; Nystatin; Pellagra; Renal Aminoacidurias; Tryptophan; Urine | 1964 |
BIOCHEMICAL ASPECTS OF THE HARTNUP DISEASE. II. SOME OBSERVATIONS ON RATS ABOUT TRYPTOPHAN METABOLISM.
Topics: Child; Clinical Enzyme Tests; Hartnup Disease; Humans; Indican; Indoles; Kidney; Kynurenine; Metabolic Diseases; Neomycin; Niacin; Niacinamide; Nicotinic Acids; Nystatin; Pellagra; Rats; Renal Aminoacidurias; Tryptophan; Urine | 1964 |
METABOLISM OF 3-HYDROXYANTHRANILIC ACID-CARBOXYL-C14 IN THE HUMAN.
Topics: 3-Hydroxyanthranilic Acid; Achondroplasia; Blood; Carbon Isotopes; Chromatography; Hippurates; Humans; Kynurenic Acid; Kynurenine; Metabolism; Niacin; Niacinamide; Nicotinic Acids; ortho-Aminobenzoates; Pyridines; Rats; Research; Tryptophan; Urine; Xanthurenates | 1964 |
NICOTINAMIDE ADENINE DINUCLEOTIDE LEVELS IN RAT BRAIN.
Topics: Brain; Dietary Fats; Metabolism; NAD; NADP; Niacin; Niacinamide; Nicotinic Acids; Pharmacology; Protein Deficiency; Rats; Research; Reserpine; Tryptophan | 1964 |
BIOCHEMICAL ASPECTS OF THE HARTNUP DISEASE. III. GENERAL DISCUSSION AND CONCLUSIONS.
Topics: Amino Acid Metabolism, Inborn Errors; Child; Drug Therapy; Feces; Hartnup Disease; Humans; Indican; Indoles; Metabolic Diseases; Niacin; Niacinamide; Nicotinic Acids; Pellagra; Renal Aminoacidurias; Tryptophan; Urine | 1964 |
FETAL DEATH FROM NICOTINAMIDE-DEFICIENT DIET AND ITS PREVENTION BY CHLORPROMAZINE AND IMIPRAMINE.
Topics: Animals; Avitaminosis; Chlorpromazine; Diet; Female; Fetal Death; Fetus; Imipramine; Liver; NAD; Niacin; Niacinamide; Nicotinic Acids; Pharmacology; Pregnancy; Pregnancy, Animal; Rats; Research; Tryptophan | 1964 |
THE METABOLISM OF ALPHA-N-MONOMETHYL-L-TRYPTOPHAN (L-ABRIN) IN MAN AND IN NORMAL AND PYRIDOXINE DEFICIENT RATS.
Topics: Abrin; Amino Acids; Body Fluids; Eclampsia; Female; Humans; Kynurenine; Male; Niacin; Niacinamide; Pregnancy; Pyridoxine; Rats; Research; Tryptophan; Urine; Vitamin B 6 Deficiency; Xanthurenates | 1964 |
ASSESSMENT OF NICOTINIC ACID STATUS OF POPULATION GROUPS.
Topics: Africa; Africa, Southern; Black People; Child; Humans; Metabolism; Niacin; Niacinamide; Nicotinic Acids; Nutrition Surveys; Population Groups; Pyridines; Tryptophan; Urine | 1964 |
PITUITARY INFLUENCE OF PYRIDINE NUCLEOTIDE METABOLISM OF RAT LIVER.
Topics: Adrenal Glands; Brain Chemistry; Fluorometry; Hypophysectomy; Intestines; Kidney; Liver; Lung; Metabolism; Muscles; Myocardium; NAD; NADP; Niacin; Niacinamide; Pharmacology; Pituitary Gland; Rats; Research; Spectrophotometry; Spleen; Tryptophan | 1964 |
[TRYPTOPHAN METABOLISM IN LEUKEMIA].
Topics: Anemia; Anemia, Aplastic; Chromatography; Drug Therapy; Hodgkin Disease; Humans; Indoles; Leukemia; Leukemia, Lymphoid; Leukemia, Myeloid; Leukemia, Radiation-Induced; Leukemoid Reaction; Leukocytosis; Metabolism; Niacin; Niacinamide; Pyridoxine; Riboflavin; Thiamine; Tryptophan | 1964 |
[RESEARCH ON THE TRYPTOPHAN--NICOTINIC ACID PATHWAY IN DIABETES MELLITUS].
Topics: Diabetes Mellitus; Geriatrics; Hippurates; Insulin; Kynurenic Acid; Kynurenine; Metabolism; Niacin; Niacinamide; Nicotinic Acids; Research; Tryptophan; Urine | 1964 |
[CONTRIBUTION TO THE STUDY OF METABOLITES OF THE TRYPTOPHAN TO NICOTINIC ACID PATHWAY IN RELATION TO SEX].
Topics: Humans; Kynurenic Acid; Kynurenine; Metabolism; Niacin; Niacinamide; Nicotinic Acids; Research; Sex; Tryptophan; Urine; Xanthurenates | 1964 |
AMINO ACID IMBALANCE AND TRYPTOPHANNIACIN METABOLISM. I. EFFECT OF EXCESS LEUCINE ON THE URINARY EXCRETION OF TRYPTOPHAN-NIACIN METABOLITES IN RATS.
Topics: Amino Acids; Caseins; Isoleucine; Leucine; Niacin; Niacinamide; Nicotinic Acids; Nitrogen; Pharmacology; Pyridines; Rats; Research; Triticum; Tryptophan; Urine | 1965 |
THE EFFECT OF CIGARETTE SMOKING ON BLADDER CARCINOGENS IN MAN.
Topics: Amino Acids; Carcinogens; Humans; Male; Metabolism; Neoplasms; Niacin; Niacinamide; Nicotiana; Smoking; Tryptophan; Urinary Bladder Neoplasms | 1965 |
[ON THE EFFECT OF ROENTGEN-IRRADIATED YOLK ON EMBRYONAL DEVELOPMENT OF THE CHICK].
Topics: Animals; Chick Embryo; Congenital Abnormalities; Embryonic Development; Niacin; Niacinamide; Ovum; Pharmacology; Phenylalanine; Radiation Effects; Research; Tryptophan | 1964 |
METABOLIC PATTERNS IN PREADOLESCENT CHILDREN. XIV. EXCRETION OF NIACIN OR TRYPTOPHAN METABOLITES BY GIRLS FED CONTROLLED DIETS SUPPLEMENTED WITH NICOTINAMIDE.
Topics: Child; Diet; Dietary Proteins; Dietary Supplements; Female; Fluids and Secretions; Humans; Metabolism; Niacin; Niacinamide; Nicotinic Acids; Pyridines; Riboflavin; Tryptophan; Urine | 1965 |
STUDIES ON THE EFFECT OF TRYPTOPHAN DEFICIENCY ON THE METABOLIC PRODUCTS OF TRYPTOPHAN AND NIACIN.
Topics: Amino Acids; Blood; Creatine; Creatinine; Deficiency Diseases; Diet; Fluids and Secretions; Histidine; Isoleucine; Leucine; Lysine; Metabolism; Methionine; Niacin; Niacinamide; Nitrogen; Nucleotides; Phenylalanine; Riboflavin; Tryptophan; Urine; Valine; Xanthurenates | 1965 |
[ELIMINATION OF METABOLITES OF TRYPTOPHAN IN THE PYRIDOXINE-DEFICIENT RAT AFTER DIFFERENT DOSES OF TRYPTOPHAN AND IN DIVERSE URINARY FRACTIONS].
Topics: Body Fluids; Hippurates; Kynurenine; Metabolism; Niacin; Niacinamide; Pyridoxine; Rats; Research; Tryptophan; Urinary Tract; Urine; Vitamin B 6 Deficiency; Xanthurenates | 1965 |
ENDEMIC PELLAGRA due to inadequacy of nicotinamide and tryptophan.
Topics: Humans; Niacin; Niacinamide; Pellagra; Tryptophan | 1955 |
Fluorometric studies of ligand-induced conformational changes of CD38.
Topics: Adenosine Diphosphate Ribose; ADP-ribosyl Cyclase; ADP-ribosyl Cyclase 1; Animals; Antigens, CD; Binding Sites; Humans; Hydrolysis; Kinetics; Ligands; Membrane Glycoproteins; Mice; Models, Molecular; NAD; Niacinamide; Protein Binding; Protein Conformation; Recombinant Proteins; Spectrometry, Fluorescence; Temperature; Tryptophan | 2003 |
Effects of excess nicotinamide administration on the urinary excretion of nicotinamide N-oxide and nicotinuric acid by rats.
Topics: Animals; Dose-Response Relationship, Drug; Eating; Liver; Male; NAD; NADP; Niacinamide; Nicotinic Acids; Predictive Value of Tests; Quinolinic Acid; Rats; Rats, Wistar; Tryptophan; Weaning; Weight Gain | 2004 |
The significance of dietary pyridoxine, niacin and protein in the conversion of tryptophan to N1-methylnicotinamide.
Topics: Diet; Humans; Niacin; Niacinamide; Nicotinic Acids; Pyridoxine; Tryptophan | 1950 |
Conversion of monomethyl-l-tryptophan to niacin and N1-methylnicotinamide by the rat.
Topics: Animals; Niacin; Niacinamide; Nicotinic Acids; Rats; Tryptophan | 1950 |
The effect of pyridoxine deficiency induced by desoxypyridoxine in human subjects upon the excretion of N-methylnicotinamide after tryptophan administration.
Topics: Humans; Niacinamide; Tryptophan; Vitamin B 6; Vitamin B 6 Deficiency | 1951 |
Comparative effect of tryptophan, niacin, and nicotinamide in forming liver pyridine nucleotides.
Topics: Liver; Niacin; Niacinamide; Nucleotides; Tryptophan | 1951 |
[Metabolic disturbance of tryptophan-nicotinamide conversion pathway by putative endocrine disruptors, bisphenol A and styrene monomer].
Topics: Animals; Benzhydryl Compounds; Body Weight; Eating; Hydrolases; Kynurenine; Liver; Male; Niacinamide; Phenols; Rats; Styrene; Tryptophan | 2004 |
Tryptophan and the biosynthesis of nicotinamide.
Topics: Niacin; Niacinamide; Nicotinic Acids; Tryptophan | 1949 |
[Action site of bisphenol A as metabolic disruptor lies in the tryptophan-nicotinamide conversion pathway].
Topics: Air Pollutants, Occupational; Animals; Benzhydryl Compounds; Kynurenine 3-Monooxygenase; Male; Mixed Function Oxygenases; Niacinamide; Organ Size; Phenols; Rats; Rats, Wistar; Thiamine; Tryptophan | 2004 |
Effect of arylformamidase (kynurenine formamidase) gene inactivation in mice on enzymatic activity, kynurenine pathway metabolites and phenotype.
Topics: Animals; Arylformamidase; Gene Silencing; Kidney; Kynurenine; Liver; Lymphocyte Activation; Mice; Mice, Knockout; Niacinamide; Phenotype; Renal Insufficiency; Thymidine Kinase; Tryptophan | 2005 |
Conversion ratio of tryptophan to niacin in Japanese women fed a purified diet conforming to the Japanese Dietary Reference Intakes.
Topics: Adult; Diet; Female; Humans; Japan; Male; NAD; NADP; Niacin; Niacinamide; Nutrition Policy; Sex Characteristics; Tryptophan | 2004 |
Changes in the urinary excretion of the metabolites of the tryptophan-niacin pathway during pregnancy in Japanese women and rats.
Topics: Animal Nutritional Physiological Phenomena; Animals; Female; Gestational Age; Humans; Niacin; Niacinamide; Nutritional Physiological Phenomena; Postpartum Period; Pregnancy; Rats; Rats, Wistar; Tryptophan | 2004 |
Tryptophan-niacin metabolism in rat with puromycin aminonucleoside-induced nephrosis.
Topics: Animals; Carboxy-Lyases; Kidney; Liver; Male; NAD; Nephrosis; Niacin; Niacinamide; Puromycin Aminonucleoside; Rats; Rats, Wistar; Serum Albumin; Tryptophan; Weight Gain | 2006 |
Treatment of irritable bowel syndrome. A case control experience.
Topics: Abdominal Pain; Adult; Angelica; Antidepressive Agents, Second-Generation; Case-Control Studies; Chi-Square Distribution; Constipation; Diarrhea; Female; Humans; Inulin; Irritable Bowel Syndrome; Male; Middle Aged; Niacinamide; Plant Preparations; Probiotics; Time Factors; Treatment Outcome; Tryptophan; Vitamin B Complex | 2006 |
A study of the conversion of tryptophan to N'-methylnicotinamide using isotopic carbon.
Topics: Carbon; Niacinamide; Tryptophan | 1949 |
Tryptophan and nicotinamide in the nutrition of the animal microorganism, Tetrahymena.
Topics: Animals; Humans; Niacin; Niacinamide; Nutritional Status; Tetrahymena; Tryptophan | 1949 |
Role of tryptophan in the biosynthesis of nicotinamide.
Topics: Niacin; Niacinamide; Nicotinic Acids; Tryptophan | 1949 |
The nicotinamide-saving action of tryptophan and the biosynthesis of nicotinamide by the intestinal flora of the rat.
Topics: Animals; Niacin; Niacinamide; Rats; Tryptophan | 1949 |
Nicotinamide biosynthesis by intestinal bacteria as influenced by methyltryptophans.
Topics: Bacteria; Bacteriology; Intestines; Niacin; Niacinamide; Tryptophan | 1949 |
Effect of nicotinamide administration on the tryptophan-nicotinamide pathway in humans.
Topics: 3-Hydroxyanthranilic Acid; Adult; Chromatography, High Pressure Liquid; Feedback, Physiological; Female; Humans; Kynurenic Acid; Niacinamide; ortho-Aminobenzoates; Quinolinic Acid; Tryptophan; Xanthurenates | 2007 |
Alterations in kynurenine precursor and product levels in schizophrenia and bipolar disorder.
Topics: 3-Hydroxyanthranilic Acid; Adult; Biomarkers; Bipolar Disorder; Brain; Chromatography, High Pressure Liquid; Female; Gyrus Cinguli; Humans; Kynurenine; Middle Aged; Niacinamide; Predictive Value of Tests; Schizophrenia; Signal Transduction; Suicide; Tryptophan; Tryptophan Oxygenase | 2008 |
Absence of a sparing action of tryptophane on nicotinamide requirements of the fly, Drosophila melanogaster.
Topics: Animals; Drosophila melanogaster; Niacin; Niacinamide; Tryptophan | 1948 |
Urinary excretion of nicotinic acid and N-methyl-nicotinamide by rats fed tryptophan and diets deficient in various B vitamins.
Topics: Animals; Diet; Niacin; Niacinamide; Nicotinic Acids; Rats; Tryptophan; Vitamin B Complex | 1948 |
Tryptophane as precursor of nicotinamide in mammals.
Topics: Animals; Mammals; Niacin; Niacinamide; Nicotinic Acids; Tryptophan | 1947 |
Age-related alterations of B-group vitamin contents in urine, blood and liver from rats.
Topics: Age Factors; Aging; Animals; Biotin; Body Weight; Eating; Folic Acid; Liver; Male; Models, Animal; Niacinamide; Pyridoxal Phosphate; Rats; Tryptophan; Vitamin B 12; Vitamin B Complex | 2008 |
The diagnostic importance of photosensitivity dermatoses in chronic alcoholism: report of two cases.
Topics: Alcoholism; Combined Modality Therapy; Dementia; Diabetes Complications; Glossitis; Greece; Humans; Male; Middle Aged; Niacin; Niacinamide; Pellagra; Photosensitivity Disorders; Tryptophan; Vitamin B Complex | 2008 |
Production of L-tryptophan-derived catabolites in hepatocytes from streptozotocin-induced diabetic rats.
Topics: Animals; Blood Glucose; Carboxy-Lyases; Diabetes Mellitus, Experimental; Hepatocytes; Kynurenine; Male; Niacinamide; Picolinic Acids; Quinolinic Acid; Rats; Rats, Sprague-Dawley; RNA, Messenger; Tritium; Tryptophan; Water | 2009 |
Comparison of the nicotinamide catabolism among rat strains.
Topics: Animals; Body Weight; Eating; Male; NAD; NADP; Niacinamide; Rats; Rats, Inbred Strains; Solubility; Species Specificity; Tryptophan; Vitamins; Water | 2009 |
Inhibition in vitro of the enzymes of the oxidative pathway of tryptophan metabolism and of nicotinamide nucleotide synthesis by benserazide, carbidopa and isoniazid.
Topics: Animals; Benserazide; Carbidopa; Isoniazid; Male; Niacinamide; Nucleotides; Oxidation-Reduction; Rats; Rats, Wistar; Tryptophan | 1980 |
Effect of vitamin B6 deficiency on the ability of rats and mice to convert tryptophane to N1-methyl nicotinamide and nicotinic acid.
Topics: Animals; Mice; Niacin; Niacinamide; Nicotinic Acids; Pyridoxine; Rats; Tryptophan; Vitamin B 6 Deficiency | 1947 |
The metabolic conversion of tryptophan to nicotinic acid and to N'-methylnicotinamide.
Topics: Niacin; Niacinamide; Nicotinic Acids; Tryptophan | 1947 |
Dietary quinic acid supplied as the nutritional supplement AIO + AC-11® leads to induction of micromolar levels of nicotinamide and tryptophan in the urine.
Topics: Adolescent; Adult; Aged; Antioxidants; Dietary Supplements; Female; Hippurates; Humans; Life Style; Male; Middle Aged; Niacinamide; Plant Extracts; Quinic Acid; Tryptophan; Young Adult | 2011 |
The urinary excretory ratio of nicotinamide catabolites was associated with the conversion ratio of tryptophan to nicotinamide in growing rats fed a niacin-free 20% casein diet.
Topics: Animals; Caseins; Diet; Male; Niacin; Niacinamide; Rats; Rats, Wistar; Time Factors; Tryptophan | 2012 |
ACE2 links amino acid malnutrition to microbial ecology and intestinal inflammation.
Topics: Angiotensin-Converting Enzyme 2; Animals; Biocatalysis; Colitis; Dextran Sulfate; Diarrhea; Dietary Proteins; Female; Gene Deletion; Genetic Predisposition to Disease; Germ-Free Life; Homeostasis; Immunity, Innate; Intestines; Male; Malnutrition; Metagenome; Mice; Models, Biological; Niacinamide; Peptidyl-Dipeptidase A; Renin-Angiotensin System; TOR Serine-Threonine Kinases; Trinitrobenzenesulfonic Acid; Tryptophan | 2012 |
The metabolites in the tryptophan degradation pathway might be useful to determine the tolerable upper intake level of tryptophan intake in rats.
Topics: Adult; Animals; Female; Humans; Kynurenic Acid; Male; Niacinamide; No-Observed-Adverse-Effect Level; Nutritional Requirements; ortho-Aminobenzoates; Rats; Rats, Wistar; Tryptophan; Vitamins | 2012 |
Increased conversion of tryptophan to nicotinamide in rats by dietary valproate.
Topics: 3-Hydroxyanthranilic Acid; Administration, Oral; Animals; Chromatography, High Pressure Liquid; Dose-Response Relationship, Drug; Food, Formulated; Liver; Male; Niacinamide; Quinolinic Acid; Rats; Rats, Wistar; Tryptophan; Valproic Acid | 2013 |
The niacin required for optimum growth can be synthesized from L-tryptophan in growing mice lacking tryptophan-2,3-dioxygenase.
Topics: 3-Hydroxyanthranilic Acid; Animals; Body Weight; Diet; Female; Indoleamine-Pyrrole 2,3,-Dioxygenase; Kynurenic Acid; Kynurenine; Liver; Male; Mice; Mice, Inbred C57BL; Mice, Knockout; Mice, Transgenic; Niacin; Niacinamide; Quinolinic Acid; Tryptophan; Tryptophan Oxygenase; Xanthurenates | 2013 |
Enzymes that control the conversion of L-tryptophan-nicotinamide and the urinary excretion ratio (N(1)-methyl-2-pyridone-5-carboxamide + N(1)-methyl-4-pyridone-3-carboxamide)/N(1)-methylnicotinamide in mice.
Topics: Animals; Body Weight; Eating; Enzymes; Male; Mice; NAD; Niacinamide; Pyridones; Quinolinic Acid; Tryptophan | 2013 |
Pantothenic acid deficiency may increase the urinary excretion of 2-oxo acids and nicotinamide catabolites in rats.
Topics: Adipates; Animals; Disease Models, Animal; Ketoglutaric Acids; Male; Niacinamide; Oxaloacetic Acid; Pantothenic Acid; Pyruvic Acid; Rats; Rats, Wistar; Tryptophan | 2013 |
The effects of glycine, L-threonine, and L-cystine supplementation to a 9% casein diet on the conversions of L-tryptophan to nicotinamide and to serotonin in rats.
Topics: Animals; Body Weight; Caseins; Cystine; Diet; Dietary Supplements; Glycine; Male; Models, Animal; Niacinamide; Rats; Rats, Wistar; Serotonin; Threonine; Tryptophan; Weight Gain | 2013 |
Contributions of tryptophan 2,3-dioxygenase and indoleamine 2,3-dioxygenase to the conversion of D-tryptophan to nicotinamide analyzed by using tryptophan 2,3-dioxygenase-knockout mice.
Topics: Animals; Body Weight; Diet; Eating; Female; Indoleamine-Pyrrole 2,3,-Dioxygenase; Mice; Mice, Knockout; Niacinamide; Stereoisomerism; Tryptophan; Tryptophan Oxygenase | 2014 |
Moderate food restriction suppresses the conversion of L-tryptophan to nicotinamide in weaning rats.
Topics: Animals; Diet; Eating; Male; Niacin; Niacinamide; Rats; Tryptophan; Weaning | 2014 |
Vitamin B1 deficiency inhibits the increased conversion of tryptophan to nicotinamide in severe food-restricted rats.
Topics: 3-Hydroxyanthranilate 3,4-Dioxygenase; 3-Hydroxyanthranilic Acid; Animals; Food Deprivation; Liver; Male; Niacin; Niacinamide; Protein Biosynthesis; Rats; Rats, Wistar; Thiamine; Tryptophan; Vitamin B Deficiency | 2015 |
Large amounts of picolinic acid are lethal but small amounts increase the conversion of tryptophan-nicotinamide in rats.
Topics: Animals; Body Weight; Carboxy-Lyases; Dose-Response Relationship, Drug; Iron Chelating Agents; Kynurenic Acid; Liver; Male; Niacinamide; ortho-Aminobenzoates; Pentosyltransferases; Picolinic Acids; Quinolinic Acid; Rats; Rats, Wistar; Tryptophan; Xanthurenates | 2014 |
Niacin metabolism and indoleamine 2,3-dioxygenase activation in malnourished patients with flaky paint dermatosis.
Topics: Acute-Phase Reaction; Adult; Aged; C-Reactive Protein; Humans; Indoleamine-Pyrrole 2,3,-Dioxygenase; Indoles; Kwashiorkor; Kynurenine; Middle Aged; Niacin; Niacinamide; Pellagra; Skin; Skin Diseases; Tryptophan | 2015 |
The kynurenine pathway activities in a sub-Saharan HIV/AIDS population.
Topics: Acquired Immunodeficiency Syndrome; Adult; Africa South of the Sahara; Antiretroviral Therapy, Highly Active; Case-Control Studies; CD4 Lymphocyte Count; Cross-Sectional Studies; Cytokines; Enzyme-Linked Immunosorbent Assay; Female; Flow Cytometry; Gas Chromatography-Mass Spectrometry; HIV Infections; Humans; Indoleamine-Pyrrole 2,3,-Dioxygenase; Inflammation; Interferon-gamma; Interleukin-6; Kynurenine; Male; Middle Aged; Neopterin; Niacinamide; Pentosyltransferases; Poverty; Quinolinic Acid; South Africa; Tryptophan | 2015 |
Niacin (Vitamin B3) Supplementation in Patients with Serotonin-Producing Neuroendocrine Tumor.
Topics: Administration, Oral; Adult; Aged; Aged, 80 and over; Female; Humans; Male; Middle Aged; Neuroendocrine Tumors; Niacinamide; Serotonin; Tryptophan; Vitamin B Complex; Young Adult | 2016 |
Time Course of Molecular and Metabolic Events in the Development of Insulin Resistance in Fructose-Fed Rats.
Topics: Animals; Carbohydrate Metabolism; Fructose; Hyperglycemia; Insulin Resistance; Lipid Metabolism; Liver; Metabolism; Metabolomics; Niacinamide; Rats; Time Factors; Tryptophan | 2016 |
Replicatively senescent human fibroblasts reveal a distinct intracellular metabolic profile with alterations in NAD+ and nicotinamide metabolism.
Topics: Cell Cycle; Cell Proliferation; Cells, Cultured; Cellular Senescence; Cluster Analysis; Fibroblasts; Homeostasis; Humans; Intracellular Space; Metabolome; Metabolomics; Models, Biological; NAD; Niacinamide; Oxidation-Reduction; Principal Component Analysis; Tryptophan | 2016 |
Effects of high ambient temperature on plasma metabolomic profiles in chicks.
Topics: Amino Acids, Sulfur; Animals; Chickens; Cystathionine; Cysteine; Cystine; Environmental Exposure; Gas Chromatography-Mass Spectrometry; Homocysteine; Hot Temperature; Kynurenine; Molecular Weight; Niacinamide; Oxidative Stress; Quinolinic Acid; Taurine; Tryptophan | 2018 |
Oral Glucose Tolerance and Tryptophan Metabolism in Non-Obese and Non-Insulin-Dependent Diabetic Goto-Kakizaki Rats Fed High-Tryptophan Diets.
Topics: Animals; Blood Glucose; Body Weight; Cholesterol; Creatinine; Diabetes Mellitus, Experimental; Diet; Dietary Supplements; Glucose Tolerance Test; Insulin; Male; Niacinamide; Pyridones; Rats; Rats, Wistar; Serum Albumin; Triglycerides; Tryptophan | 2018 |
Quantitative Analysis of NAD Synthesis-Breakdown Fluxes.
Topics: Animals; Female; HCT116 Cells; Hep G2 Cells; Humans; Intestine, Small; Liver; Mice; Mice, Inbred C57BL; Muscle, Skeletal; NAD; Niacinamide; Poly(ADP-ribose) Polymerases; Sirtuins; Spleen; Tryptophan | 2018 |
Peripheral tryptophan, serotonin, kynurenine, and their metabolites in major depression: A case-control study.
Topics: 3-Hydroxyanthranilic Acid; Adult; Case-Control Studies; Cohort Studies; Depressive Disorder, Major; Female; Humans; Kynurenine; Male; Middle Aged; Niacinamide; Picolinic Acids; Serotonin; Tryptophan; Xanthurenates | 2020 |
Increased fatty acid oxidation and mitochondrial proliferation in liver are associated with increased plasma kynurenine metabolites and nicotinamide levels in normolipidemic and carnitine-depleted rats.
Topics: Animals; Carnitine; Cell Proliferation; Kynurenine; Lipid Metabolism; Liver; Male; Metabolic Networks and Pathways; Methylhydrazines; Mitochondria; NAD; Niacinamide; Oxidation-Reduction; Peroxisomes; Rats; Tryptophan | 2020 |
The specific metabolome profiling of patients infected by SARS-COV-2 supports the key role of tryptophan-nicotinamide pathway and cytosine metabolism.
Topics: Aged; Aged, 80 and over; Betacoronavirus; Biomarkers; Coronavirus Infections; COVID-19; Cytosine; Early Diagnosis; Female; France; Humans; Male; Metabolome; Metabolomics; Middle Aged; Niacinamide; Pandemics; Pneumonia, Viral; Prognosis; Reproducibility of Results; SARS-CoV-2; Sensitivity and Specificity; Severity of Illness Index; Tryptophan | 2020 |
Metabolome-wide association study of the relationship between chlorpyrifos exposure and first trimester serum metabolite levels in pregnant Thai farmworkers.
Topics: Biomarkers; Child; Chlorpyrifos; Creatinine; Cystine; Cytochromes; Farmers; Fatty Acids; Female; Glutathione; Humans; Insecticides; Metabolome; NAD; Niacinamide; Organophosphorus Compounds; Pesticides; Pregnancy; Pregnancy Trimester, First; Reactive Oxygen Species; Thailand; Tryptophan | 2022 |
Metabolomic transition trajectory and potential mechanisms of N-nitrosomethylbenzylamine induced esophageal squamous cell carcinoma in rats.
Topics: Animals; Carcinogens; Carcinogens, Environmental; Cell Transformation, Neoplastic; Dimethylnitrosamine; Esophageal Neoplasms; Esophageal Squamous Cell Carcinoma; Metabolome; NAD; Niacin; Niacinamide; Nitrogen; Nitrosamines; Rats; Sphingolipids; Tryptophan; Tumor Microenvironment | 2022 |
Maternal heterozygosity of Slc6a19 causes metabolic perturbation and congenital NAD deficiency disorder in mice.
Topics: Amino Acid Transport Systems, Neutral; Animals; Congenital Abnormalities; Female; Heterozygote; Kidney; Mice; NAD; Niacinamide; Pregnancy; Tryptophan | 2023 |