tryptophan has been researched along with ascorbic acid in 193 studies
| Timeframe | Studies, this research(%) | All Research% |
|---|---|---|
| pre-1990 | 99 (51.30) | 18.7374 |
| 1990's | 25 (12.95) | 18.2507 |
| 2000's | 27 (13.99) | 29.6817 |
| 2010's | 32 (16.58) | 24.3611 |
| 2020's | 10 (5.18) | 2.80 |
| Authors | Studies |
|---|---|
| Barnes, JC; Bradley, P; Day, NC; Fourches, D; Reed, JZ; Tropsha, A | 1 |
| Ho, PP; Sullivan, HR; Walters, CP | 1 |
| Coppen, A | 1 |
| Evarts, RP; Mostafa, MH; Weisburger, EK | 1 |
| Chen, TL; Raisz, LG | 1 |
| Gellerfors, P; Nelson, BD | 1 |
| Fox, SW; Syren, RM; Windsor, CR | 1 |
| Subramanian, N | 1 |
| Chambers, CA; Naylor, GJ | 1 |
| Capel, ID; Pinnock, MH; Williams, DC | 1 |
| De Bruin, EJ; Hankes, LV; Jansen, CR; Schmaeler, M | 1 |
| Anderson, KE; Bodansky, O; Kappas, A | 1 |
| Basu, TK | 1 |
| Gambardella, RL; Richardson, KE | 1 |
| Hankes, LV; Jansen, CR | 1 |
| van Heyningen, R | 1 |
| Larsson-Cohn, U | 2 |
| Dahm, CH; Harvey, CC; Horwitt, MK | 1 |
| Hankes, LV | 2 |
| Koppenol, WH; Maskos, Z; Rush, JD | 1 |
| Martorana, GE; Meucci, E; Miggiano, GA; Mordente, A; Santini, SA | 1 |
| Vissers, MC; Winterbourn, CC | 1 |
| Kido, R; Matsui, IS; Minatogawa, Y | 1 |
| Nagayama, F; Serrano, AE | 1 |
| Ancill, RJ; Goumeniouk, AD; Koczapski, AB; MacEwan, GW | 1 |
| Kakizoe, T; Kushida, H; Nagao, M; Sone, H; Sugimura, T; Sugiyama, K; Suzuki, M; Wakabayashi, K | 1 |
| Bondy, SC; LeBel, CP | 1 |
| Enomoto, N; Itakura, K; Kawakishi, S; Uchida, K | 1 |
| Mathur, RL; Sahai, P | 1 |
| Mefford, IN | 1 |
| Khanam, A; Rahman, B; Rahman, MA | 1 |
| Kido, R; Kuroiwa, T; Takikawa, O; Yamazaki, F | 1 |
| Chakrabarti, B; Ueno, N | 1 |
| Blondin, J; Taylor, A | 1 |
| Everse, J; Lin, H | 1 |
| Pacáková, V; Stulík, K | 1 |
| Beetens, JR; Herman, AG; Van Hoydonck, AE | 1 |
| Paller, MS | 1 |
| Lerer, B | 1 |
| af Segerstad, CH; Brouwer, JN; Eichberg, JW; Glaser, D; Haynes, R; Hellekant, G; Roberts, T; van der Wel, H | 1 |
| Kavrakirova, SV; Maleev, AC; Popov, PG | 1 |
| Davis, W; Kibbey, AH | 1 |
| Aksenova, OV; Cherntsvoa, TA; Ivanova, VD | 1 |
| Kanig, K; Oesterle, W | 1 |
| Bates, CJ; Levene, CI | 1 |
| Dixit, BN | 1 |
| Bornstein, P; Jansen, HW | 1 |
| Fuzeau-Braesch, S | 1 |
| Csányi, V; Ferencz, I; Mile, I | 1 |
| Bates, CJ; Levene, CI; Prynne, CJ | 1 |
| Finazzi-Agrò, A; Mondovì, B; Morpurgo, L; Rotilio, G | 1 |
| Brady, FO; Feigelson, P; Rajagopalan, KV | 1 |
| Badawy, AA; Evans, M | 1 |
| Feige, G; Pfaender, P; Wieland, T | 1 |
| Gál, EM | 1 |
| Lilius, EM; Raunio, R | 1 |
| Brady, FO; Feigelson, P; Forman, HJ; Monaco, ME; Schutz, G | 1 |
| Emerson, PM; Mason, DY | 1 |
| Janssen, EG | 1 |
| Seifert, J | 1 |
| Barnett, JW | 1 |
| Knox, WE | 1 |
| Hvitefelt, J; Santti, RS | 1 |
| Hudson, MM; Payne, IR | 1 |
| Fujisawa, H; Nozaki, M; Okuno, S | 1 |
| Brady, FO; Feigelson, P; Forman, HJ | 1 |
| Geller, E; Yuwiler, A | 1 |
| Adil, AS; Ahmad, I; Hashmi, MH; Viegas, A | 1 |
| Kido, R; Nishino, M; Noguchi, T | 1 |
| Feigelson, P; Maeno, H | 1 |
| Feiner, LA; Kostellow, AB; Morrill, GA | 1 |
| Ishiguro, K; Koyanagi, T; Suwa, J | 1 |
| Duke, GA; Nishimura, R; Pipkin, GE; Schlegel, JU | 2 |
| Jervell, KF; Seglen, PO | 1 |
| Ogunlana, EO; Ramstad, E; Tyler, VE | 1 |
| Buckley, JP; Dixit, BN | 1 |
| Feigelson, P; Hayaishi, O; Ishimura, Y | 1 |
| Knox, WE; Piras, MM | 1 |
| Hayaishi, O; Yamamoto, S | 1 |
| Annable, L; Chouinard, G; Young, SN | 1 |
| Butler, J; Hoey, BM | 1 |
| Fukushima, S; Hasegawa, R; Ito, N; Sakata, T; Shirai, T | 1 |
| Moser, U; Weber, F | 1 |
| April, ME; Brandt, ME; Brandt, RB; Thomson, C | 1 |
| Fukushima, S; Hagiwara, A; Ito, N; Ogiso, T; Shibata, M | 1 |
| Gerrard, JM; Peterson, DA; Rao, GH; White, JG | 1 |
| Beetens, JR; Claeys, M; Herman, AG | 1 |
| Sauberlich, HE | 1 |
| Kanamori, H; Kinae, N; Morimoto, K; Tomita, I | 2 |
| Montenero, AS | 1 |
| Sivak, A; Tu, AS | 1 |
| Bieri, JG | 1 |
| Kanofsky, JR; Sima, PD | 1 |
| Manley, P; McKeon, P; Swanwick, G | 1 |
| Chatterjee, IB; Mukhopadhyay, CK | 1 |
| Antalík, M; Dadák, V; Nováková, O; Vrána, O | 1 |
| Birlouez-Aragon, I; Junes, P; Lecerf, JM; Mondon, H; Moreaux, V; Tessier, F | 1 |
| Ringvold, A | 2 |
| Minetti, M; Pietraforte, D | 1 |
| Beit-Yannai, E; Horowitz, M; Kohen, R; Shohami, E; Trembovler, V | 1 |
| Hlavaty, JJ; Nowak, T | 1 |
| Linetsky, M; Ortwerth, BJ; Ranson, N | 1 |
| Duell, PB; Nguyen, H; Shultz, A; Wheaton, DL | 1 |
| Birlouez-Aragon, I; Junes, P; Mondon, H; Moreaux, V; Tessier, F | 1 |
| Richer, SP; Rose, RC | 1 |
| Boyd, CA; Kudo, Y | 1 |
| Devasagayam, TP; Kamat, JP | 1 |
| Atwood, CS; Bowden, EF; Bush, AI; Chylack, LT; Faget, KY; Goldstein, LE; Hartshorn, M; Huang, X; Leopold, MC; Lim, JT; Muffat, JA; Saunders, AJ; Scarpa, RC; Tanzi, RE | 1 |
| Anderssen, E; Kjønniksen, I; Ringvold, A | 1 |
| Bazin, M; Hug, GL; Mazière, JC; Morlière, P; Patterson, LK; Santus, R | 1 |
| Birlouez-Aragon, I; de La Rochette, A; Edwards, AM; Mancini, M; Morlière, P; Silva, E | 1 |
| Decker, EA; Frei, B; Ivanov, V; Zhu, BZ | 1 |
| Cavalheiro, ET; Fiorucci, AR | 1 |
| Argirova, M; Breipohl, W | 1 |
| Häder, DP; Jha, PN; Kumar, A; Kumar, HD; Sinha, RP; Tyagi, MB; Tyagi, R | 1 |
| Birlouez-Aragon, I; de La Rochette, A; Morlière, P; Silva, E | 1 |
| Watanabe, Y | 1 |
| CHARCONNET-HARDING, F; TERROINE, T | 1 |
| DUNCAN, GM; FORBES, JC | 1 |
| COOPER, JR | 1 |
| DITTRICH, S | 1 |
| HEACOCK, RA; MAHON, ME | 1 |
| DESPIERRES, G; LAGEZE, P; MALTERRE, H | 1 |
| BARTOS, J | 1 |
| CHATTERJEE, SK; GAL, EM; MARSHALL, FD | 1 |
| Baker, EM; Canham, JE; Mcdowell, ME; Nunes, WT; Sauberlich, HE | 1 |
| STEENBERGEN, CL; TERPSTRA, W | 1 |
| MANCA, P; PREZIOSI, P | 1 |
| GELLER, E; SLATER, GG; YUWILER, A | 1 |
| HARDING-CHARCONNET, F | 1 |
| GRUENBERGER, D; KUTACEK, M; PROCHAZKA, Z | 1 |
| Geers, R; Henot, D; Neyt, A; Peeters, E | 1 |
| Aubert, AE; Beckers, F; De Smet, S; Geers, R; Neyt, A; Peeters, E | 1 |
| Carrasco, C; Lissi, E; López-Alarcón, C; Nuñez-Vergara, L; Rocco, C; Speisky, H; Squella, JA | 1 |
| Driessen, B; Geers, R; Peeters, E | 1 |
| de Groot, H; Kirsch, M; Korth, HG; Kytzia, A; Sustmann, R | 1 |
| Fuchs, D; Schennach, H; Schroecksnadel, K; Winkler, C | 1 |
| Fang, J; Han, Q; James, AA; Li, J; Li, JS; Rizzi, M | 1 |
| Adak, S; Dolai, S; Pal, S; Yadav, RK | 1 |
| Adrover, M; Donoso, J; Frau, J; Muñoz, F; Vilanova, B | 1 |
| Davies, MJ; Hawkins, CL; Pattison, DI; Stanley, NR | 1 |
| Babaei, A; Khalilzadeh, B; Taheri, A; Zendehdel, M | 1 |
| Min, DB; Yettella, RR | 1 |
| Domazou, AS; Gebicki, JM; Koppenol, WH | 1 |
| Bhattacharyya, J; Ortwerth, BJ; Shipova, E | 1 |
| Puntarulo, S; Rousseau, I | 1 |
| Appelhans, D; Müller, M; Ouyang, W; Voit, B | 1 |
| Finnie, C; Hägglund, P; Navrot, N; Svensson, B | 1 |
| Bomastyk, B; Hauser, PC; Petrovic, I | 1 |
| Akbari, R; Bemanadi Parizi, M; Khorasani-Motlagh, M; Noroozifar, M | 1 |
| Chatraei, F; Zare, HR | 1 |
| Deng, KQ; Li, XF; Zhou, JH | 1 |
| Chai, Y; Chen, S; Hu, F; Wang, C; Yuan, R; Zhang, M | 1 |
| Ahmar, H; Fakhari, AR; Nasirizadeh, N; Shekari, Z; Shishehbore, MR; Zare, HR | 1 |
| Chai, Y; Chen, S; Han, J; Yuan, D; Yuan, R; Zhang, W | 1 |
| Appadurai, DA; Manning, J; May, JM; Mitchell, B; Nganga, V; Pierce, LJ; Shakya, A; Spangrude, GJ; Swanson, PC; Tantin, D; Wang, H | 1 |
| Kaur, B; Pandiyan, T; Satpati, B; Srivastava, R | 1 |
| Chen, D; Li, X; Lu, Y; Wang, G | 1 |
| Estévez, M; Parra, V; Villaverde, A | 1 |
| He, Q; He, Z; Lian, Q; Lu, X; Luo, A; Yan, K; Zhang, D; Zhou, X | 1 |
| Kong, J; Li, H; Luo, J; Su, B; Wang, Y; Ye, D; Zhang, S | 1 |
| Galisteo, J; Herraiz, T | 1 |
| Alizad, K; Karimi-Maleh, H; Keyvanfard, M; Shakeri, R | 1 |
| Kaur, B; Srivastava, R | 1 |
| Chen, DM; Cheng, P; Gu, W; Li, H; Ma, JG; Wu, XQ; Yang, GM | 1 |
| Liu, Y; Nie, Z; Yao, S; Zhao, T; Zhu, X | 1 |
| Déjean, V; Dodson, CA; Evans, EW; Hore, PJ; Kattnig, DR; Mackenzie, SR; Timmel, CR; Wallace, MI | 1 |
| Diene, SM; Entenza, JM; François, P; Resch, G; Zbinden, A | 1 |
| Chung, C; McClements, DJ; Mutilangi, W; Rojanasasithara, T | 1 |
| Adelfi, MG; Aversano, R; Carputo, D; Contaldi, F; D'Amelia, V; De Tommasi, N; Diretto, G; Vaccaro, C; Vassallo, A | 1 |
| Davidson, VL; Ma, Z | 1 |
| Gebicki, JM; Nauser, T | 1 |
| Bai, Y; Li, X; Yang, Z | 1 |
| Dehghani, M; Makarem, S; Nasirizadeh, N; Shekari, Z | 1 |
| Ahmadi, H | 1 |
| Hore, PJ; Kattnig, DR; Nielsen, C; Sjulstok, E; Solov'yov, IA | 1 |
| Chakrabarti, R; Khan, NA; Sharma, J | 1 |
| Lang, Y; Li, B; Li, E; Meng, X; Ran, X; Tian, J; Wang, W; Zang, Z; Zhang, Y | 1 |
| Acosta, I; Armada, MPG; Arroquia, A | 1 |
| Davis, SE; Korich, AL; Ramsson, ES | 1 |
| Wang, SD; Wang, YN; Xie, LX; Zhao, YF | 1 |
| Baharifar, H; Faridbod, F; Faridi Majidi, R; Honarvarfard, E; Khorramizadeh, MR; Khoshnevisan, K; Larijani, B; Mahmoudi-Kohan, S; Maleki, H; Mohammadi, H; Saadat, F; Sadeghi Afjeh, M; Sajjadi-Jazi, SM; Torabi, F | 1 |
| Ay, E; Galopin, C; Gérard, V; Graff, B; Lalevée, J; Launay, V; Morlet-Savary, F | 1 |
| Bernaś, E; Krakowska, A; Kunicki, E; Muszyńska, B; Sękara, A; Suchanek, M; Sułkowska-Ziaja, K; Zięba, P | 1 |
| Badawy, BM; Darwish, WS; El-Toukhy, M; Elafify, M; Mohamed, RE; Shata, RR | 1 |
| Beheshtian, J; Ramazani, A; Rezayei, E; Shayeganfar, F | 1 |
| Cui, H; Gao, N; Jiao, X; Lang, Y; Li, B; Shu, C; Tan, H; Tian, J; Zang, Z | 1 |
| Du, N; Guan, R; Li, J; Zhao, S | 1 |
14 review(s) available for tryptophan and ascorbic acid
| Article | Year |
|---|---|
On the brain ascorbic acid and its importance in metabolism of biogenic amines.
Topics: Animals; Ascorbic Acid; Biogenic Amines; Brain; Brain Chemistry; Histamine; Histidine; Humans; Norepinephrine; Serotonin; Tryptophan; Tyrosine | 1977 |
Effects of oral contraceptives on vitamin metabolism.
Topics: Ascorbic Acid; Blood Platelets; Contraceptives, Oral; Depression; Female; Folic Acid; Humans; Leukocytes; Menstruation; Nicotinic Acids; Pregnancy; Pyridoxine; Riboflavin; Serotonin; Thiamine; Time Factors; Tryptophan; Vitamin A; Vitamin B 12; Vitamin E; Vitamin E Deficiency; Vitamins | 1976 |
Significance of vitamins in cancer.
Topics: Antineoplastic Agents; Ascorbic Acid; Bone Neoplasms; Brain Neoplasms; Breast Neoplasms; Bronchial Neoplasms; Humans; Neoplasms; Nutritional Physiological Phenomena; Tryptophan; Vitamin A; Vitamin B Complex; Vitamin B Deficiency; Vitamins | 1976 |
Oral contraceptives and vitamins: a review.
Topics: Ascorbic Acid; Contraceptives, Oral; Depression; Estradiol Congeners; Female; Folic Acid; Folic Acid Deficiency; Humans; Lipids; Menstruation; Nicotinic Acids; Pyridoxine; Tryptophan; Vitamin A; Vitamin B 12; Vitamin B 12 Deficiency; Vitamin B 6 Deficiency; Vitamins | 1975 |
Biomedical uses of high-performance liquid chromatography with electrochemical detection.
Topics: Ascorbic Acid; Catecholamines; Chemical Phenomena; Chemistry; Chromatography, High Pressure Liquid; Electrochemistry; Enzymes; Neurotransmitter Agents; Nitro Compounds; Psychotropic Drugs; Tryptophan | 1985 |
Role of vitamins in urolithiasis.
Topics: Adult; Ascorbic Acid; Glycine; Humans; Pyridoxine; Tryptophan; Urinary Calculi; Vitamin A; Vitamins | 1988 |
Electrochemical detection in HPLC. Part 2. Applications.
Topics: Amines; Ascorbic Acid; Catecholamines; Chemical Phenomena; Chemistry; Chromatography, High Pressure Liquid; Electrochemistry; Enzymes; Nitrosamines; Phenols; Sulfur; Tryptophan; Tyrosine; Uric Acid | 1985 |
Alternative therapies for bipolar disorder.
Topics: Ascorbic Acid; Bipolar Disorder; Bupropion; Carbamazepine; Choline; Clonazepam; Clonidine; Clorgyline; Demeclocycline; Fenfluramine; Humans; Methylene Blue; Phosphatidylcholines; Physostigmine; Propiophenones; Propranolol; Spironolactone; Thyroxine; Tryptophan; Valproic Acid | 1985 |
[Biochemical treatment possibilities in psychoses].
Topics: Amino Acids; Ascorbic Acid; Dihydroxyphenylalanine; Humans; Methionine; Niacinamide; Nicotinic Acids; Phenylalanine; Psychotic Disorders; Pyridoxine; Schizophrenia; Tryptophan; Tyrosine | 1969 |
[Oral contraceptives and vitamins].
Topics: Animals; Ascorbic Acid; Blood Glucose; Contraceptives, Oral; Depression; Depression, Chemical; Estrogens; Female; Folic Acid; Humans; Pregnancy; Pyridoxine; Rats; Tryptophan; Vitamin A; Vitamin B 12 | 1974 |
The regulation of tryptophan pyrrolase activity by tryptophan.
Topics: Adrenalectomy; Animals; Ascorbic Acid; Carbon Monoxide; Dialysis; Enzyme Induction; Globins; Hydrocortisone; In Vitro Techniques; Liver; Methemoglobin; Nitrogen; Oxygen; Rats; Tryptophan; Tryptophan Oxygenase | 1966 |
Interactions of thiamin, riboflavin, and other B-vitamins.
Topics: Adult; Animals; Ascorbic Acid; Aspartate Aminotransferases; Biotin; Cricetinae; Female; Humans; Male; NAD; Nicotinic Acids; Pantothenic Acid; Pyridoxine; Riboflavin; Riboflavin Deficiency; Thiamine; Tryptophan; Vitamin B 12; Vitamin B 6 Deficiency; Vitamin B Complex | 1980 |
[Neural and molecular mechanisms of fatigue and recovery from fatigue].
Topics: Acetylcarnitine; Ascorbic Acid; Biopterins; Brain; Cytokines; Fatigue; Glutamic Acid; Humans; Nerve Net; Serotonin; Tomography, Emission-Computed; Tryptophan | 2003 |
Plant redox proteomics.
Topics: Ascorbic Acid; Cysteine; Gene Expression Regulation, Plant; Glutaredoxins; Glutathione; Methionine; Oxidation-Reduction; Plant Proteins; Plants; Protein Processing, Post-Translational; Proteome; Proteomics; Reactive Nitrogen Species; Reactive Oxygen Species; Thioredoxins; Tryptophan | 2011 |
4 trial(s) available for tryptophan and ascorbic acid
| Article | Year |
|---|---|
Letter: Treatment of unpolar depression.
Topics: Ascorbic Acid; Depression; Drug Therapy, Combination; Humans; Pyridoxine; Tryptophan | 1976 |
A controlled trial of L-tryptophan in mania.
Topics: Adult; Ascorbic Acid; Bipolar Disorder; Clinical Trials as Topic; Double-Blind Method; Drug Combinations; Drug Evaluation; Female; Humans; Placebos; Psychiatric Status Rating Scales; Pyridoxine; Tryptophan | 1978 |
Effect of vitamin or amino acid supplementation on plasma free amino acid levels in South African Blacks.
Topics: Amino Acids; Ascorbic Acid; Black or African American; Black People; Humans; Kynurenine; Leucine; Male; Pyridoxine; Riboflavin; South Africa; Thiamine; Tryptophan; Vitamin B Complex | 1977 |
Influence of supplemental magnesium, tryptophan, vitamin C, vitamin E, and herbs on stress responses and pork quality.
Topics: Animal Feed; Animal Nutritional Physiological Phenomena; Animals; Ascorbic Acid; Diet; Dietary Supplements; Female; Magnesium; Male; Meat; Plant Preparations; Skin; Stress, Physiological; Swine; Tryptophan; Vitamin E | 2006 |
175 other study(ies) available for tryptophan and ascorbic acid
| 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 |
Biosynthesis of thromboxane B2: assay, isolation, and properties of the enzyme system in human platelets.
Topics: 8,11,14-Eicosatrienoic Acid; Arachidonic Acids; Ascorbic Acid; Blood Coagulation Factors; Blood Platelets; Catecholamines; Chromatography, Gas; Chromatography, Thin Layer; Glutathione; Hemin; Humans; Hydrogen-Ion Concentration; Hydroquinones; Hydroxy Acids; Indoleacetic Acids; Mass Spectrometry; Methemoglobin; Microsomes; Porphyrins; Prostaglandins E; Pyrans; Tryptophan | 1976 |
In vitro effect of L-tryptophan and its metabolites on dimethylaminoazobenzene reductase activity of rat liver.
Topics: Animals; Antimetabolites; Ascorbic Acid; Cysteine; Kinetics; Liver; Male; NADH, NADPH Oxidoreductases; p-Dimethylaminoazobenzene; Rats; Tryptophan | 1979 |
The effects of ascorbic acid deficiency on calcium and collagen metabolism in cultured fetal rat bones.
Topics: Animals; Ascorbic Acid; Ascorbic Acid Deficiency; Bone and Bones; Calcification, Physiologic; Calcium; Cartilage; Chromatography; Collagen; Dithiothreitol; Fetus; Glucose; Hydroxylation; Hydroxyproline; Microbial Collagenase; Organ Culture Techniques; Organ Size; Procollagen-Proline Dioxygenase; Protein Biosynthesis; Pyridines; Rats; Tryptophan | 1975 |
Alkali-induced reduction of the beta-cytochromes in purified complex III from beef heart mitochondria.
Topics: Adenosine Triphosphate; Animals; Ascorbic Acid; Cattle; Cytochromes; Dithionite; Hydrogen-Ion Concentration; Magnesium; Methylphenazonium Methosulfate; Mitochondria, Muscle; Myocardium; Tetramethylphenylenediamine; Tryptophan; Tyrosine | 1975 |
Thermal copoly(amino acids) as inhibitors of glyoxalase I.
Topics: Antineoplastic Agents; Ascorbic Acid; Hot Temperature; Kinetics; Lactoylglutathione Lyase; Lyases; Peptides; Spectrophotometry, Ultraviolet; Structure-Activity Relationship; Tryptophan | 1978 |
An in vitro assessment of the effect of cytotoxic drugs upon the intestinal absorption of nutrients in rats.
Topics: Animals; Ascorbic Acid; Biological Transport, Active; Fluorouracil; Glucose; Intestinal Absorption; Male; Methotrexate; Palmitic Acids; Rats; Tryptophan; Vitamin A | 1979 |
Influence of vitamin and amino acid supplements on tryptophan-kynurenine metabolism in South African Bantu.
Topics: Adult; Aminohippuric Acids; Ascorbic Acid; Humans; Kynurenic Acid; Kynurenine; Leucine; ortho-Aminobenzoates; Pyridoxine; Racial Groups; Riboflavin; South Africa; Thiamine; Tryptophan; Vitamins; Xanthurenates | 1978 |
The pathways of oxalate formation from phenylalanine, tyrosine, tryptophan and ascorbic acid in the rat.
Topics: Animals; Ascorbic Acid; Carbon Dioxide; Carbon Radioisotopes; Isotope Labeling; Kinetics; Male; Oxalates; Phenylalanine; Rats; Respiration; Tryptophan; Tyrosine | 1977 |
Experimental studies on cataract.
Topics: Aging; Animals; Ascorbic Acid; Cataract; Crystallins; Diabetic Retinopathy; Humans; Lens, Crystalline; Naphthalenes; Naphthoquinones; Peptide Hydrolases; Sorbitol; Tryptophan | 1976 |
Relationship between levels of blood lipids, vitamins C, A, and E, serum copper compounds, and urinary excretions of tryptophan metabolites in women taking oral contraceptive therapy.
Topics: Adult; Ascorbic Acid; Blood Pressure; Ceruloplasmin; Cholesterol; Contraceptives, Oral; Contraceptives, Oral, Synthetic; Copper; Female; Humans; Lipids; Male; Middle Aged; Phospholipids; Pregnancy; Triglycerides; Tryptophan; Vitamin A; Vitamin E; Xanthurenates | 1975 |
Influence of iron and ascorbic acid on tryptophan metabolism in man.
Topics: Ascorbic Acid; Female; Hemosiderosis; Humans; Iron; Male; Middle Aged; Scurvy; Tryptophan | 1975 |
The hydroxylation of tryptophan.
Topics: Ascorbic Acid; Chromatography, High Pressure Liquid; Edetic Acid; Ferric Compounds; Gamma Rays; Hydrogen Peroxide; Hydrogen-Ion Concentration; Hydroxides; Hydroxyl Radical; Hydroxylation; Iron; Kynurenine; Macromolecular Substances; Nitrous Oxide; Oxygen; Photochemistry; Pulse Radiolysis; Spectrophotometry; Tryptophan | 1992 |
Conformational stability of bovine alpha-crystallin. Evidence for a destabilizing effect of ascorbate.
Topics: Acrylamide; Acrylamides; Animals; Ascorbic Acid; Cattle; Crystallins; Guanidine; Guanidines; Hot Temperature; Hydrogen-Ion Concentration; In Vitro Techniques; Iodides; Light; Nephelometry and Turbidimetry; Protein Conformation; Protein Denaturation; Scattering, Radiation; Spectrometry, Fluorescence; Tryptophan; Urea | 1992 |
Oxidative damage to fibronectin. II. The effect of H2O2 and the hydroxyl radical.
Topics: Ascorbic Acid; Cobalt Radioisotopes; Cross-Linking Reagents; Edetic Acid; Electrophoresis, Polyacrylamide Gel; Fibronectins; Fluorescence; Humans; Hydrogen Peroxide; Hydroxides; Hydroxyl Radical; Leukocyte Elastase; Mannitol; Molecular Weight; Oxidation-Reduction; Pancreatic Elastase; Tryptophan; Tyrosine | 1991 |
Kinetic properties of human liver tryptophan pyrrolase.
Topics: Ascorbic Acid; Humans; Kinetics; Liver; Oxygen; PQQ Cofactor; Quinolones; Tryptophan; Tryptophan Oxygenase | 1991 |
Inhibition studies on liver arylformamidases of rainbow trout and cattle.
Topics: Amino Acids; Animals; Arylformamidase; Ascorbic Acid; Cations, Divalent; Cattle; Chromatography, Gel; Chromatography, Ion Exchange; Edetic Acid; Kinetics; Kynurenine; Liver; Species Specificity; Trout; Tryptophan | 1991 |
A case of drug-drug interaction involving clozapine.
Topics: Adult; Ascorbic Acid; Clozapine; Drug Eruptions; Drug Interactions; Humans; Male; Niacin; Schizophrenia; Schizophrenic Psychology; Tryptophan | 1991 |
Inhibitory effect of 2-O-octadecylascorbic acid in agglutination assay with concanavalin A; short-term examination of rat urinary bladder carcinogenesis.
Topics: Agglutination Tests; Animals; Ascorbic Acid; Butylhydroxybutylnitrosamine; Cell Aggregation; Concanavalin A; Free Radical Scavengers; Male; Rats; Saccharin; Tryptophan; Urinary Bladder Neoplasms | 1991 |
Persistent protein damage despite reduced oxygen radical formation in the aging rat brain.
Topics: Aging; Animals; Ascorbic Acid; Brain; Cerebral Cortex; Ferric Compounds; Fluoresceins; Free Radicals; In Vitro Techniques; Male; Nerve Tissue Proteins; Oxygen Consumption; Rats; Rats, Inbred F344; Superoxide Dismutase; Tryptophan | 1991 |
Formation of diastereoisomeric 3a-hydroxypyrroloindoles from a tryptophan residue analog mediated by iron (II)-EDTA and L-ascorbate.
Topics: Ascorbic Acid; Chemical Phenomena; Chemistry; Deoxyribose; Edetic Acid; Ferric Compounds; Indoles; Magnetic Resonance Spectroscopy; Oxidation-Reduction; Pyrroles; Tryptophan | 1990 |
Effects of a tryptophan supplemented diet and U.V. radiation on the rat lens.
Topics: Animals; Ascorbic Acid; Crystallins; Diet; Glucosephosphate Dehydrogenase; Glutathione; Glutathione Peroxidase; Glutathione Reductase; Lens, Crystalline; Malondialdehyde; Phosphogluconate Dehydrogenase; Rats; Rats, Inbred Strains; Tryptophan; Ultraviolet Rays; Urea | 1990 |
Mechanism of interferon-gamma action. Characterization of indoleamine 2,3-dioxygenase in cultured human cells induced by interferon-gamma and evaluation of the enzyme-mediated tryptophan degradation in its anticellular activity.
Topics: Ascorbic Acid; Carcinoma, Squamous Cell; Enzyme Induction; Humans; Immunosorbent Techniques; Interferon-gamma; Lung; Methylene Blue; Osteosarcoma; Oxygenases; Recombinant Proteins; Tryptophan; Tryptophan Oxygenase; Tumor Cells, Cultured | 1988 |
Monitoring in situ circular dichroism of the intact vitreous: a new approach.
Topics: Animals; Ascorbic Acid; Cattle; Circular Dichroism; Collagen; Dialysis; Hyaluronic Acid; Proteins; Spectrometry, Fluorescence; Spectrum Analysis; Tryptophan; Vitreous Body | 1988 |
Measures of leucine aminopeptidase can be used to anticipate UV-induced age-related damage to lens proteins: ascorbate can delay this damage.
Topics: Aging; Animals; Ascorbic Acid; Crystallins; Kinetics; Lens, Crystalline; Leucyl Aminopeptidase; Rabbits; Spectrometry, Fluorescence; Tryptophan; Ultraviolet Rays | 1987 |
The cytotoxic activity of hematoheme: evidence for two different mechanisms.
Topics: Animals; Ascorbic Acid; Cysteine; Hematoporphyrins; Hemolysis; Hydrogen Peroxide; Iodides; Oxygen; Rabbits; Tryptophan; Uric Acid | 1987 |
Stimulation of prostacyclin production by vitamin C in ram seminal vesicle microsomes: possible mode of action.
Topics: Animals; Arachidonic Acids; Ascorbic Acid; Catalase; Epoprostenol; In Vitro Techniques; Leukotrienes; Lipid Peroxides; Male; Microsomes; Prostaglandin Endoperoxides, Synthetic; Prostaglandin H2; Prostaglandins G; Prostaglandins H; Seminal Vesicles; Sheep; Superoxide Dismutase; Tryptophan | 1985 |
Free radical scavengers in mercuric chloride-induced acute renal failure in the rat.
Topics: Acute Kidney Injury; Allopurinol; Animals; Ascorbic Acid; Creatinine; Dimethyl Sulfoxide; Drug Interactions; Kidney Cortex; Lipid Peroxides; Male; Mercuric Chloride; Rats; Superoxide Dismutase; Thiourea; Tryptophan | 1985 |
Effects of gymnemic acid on the chorda tympani proper nerve responses to sweet, sour, salty and bitter taste stimuli in the chimpanzee.
Topics: Animals; Ascorbic Acid; Aspartame; Chorda Tympani Nerve; Citrates; Citric Acid; Female; Glycoproteins; Pan troglodytes; Plant Proteins; Quinine; Saponins; Sucrose; Sweetening Agents; Taste; Thiazines; Triterpenes; Tryptophan; Xylitol | 1985 |
Effect of olivomycin on the induced synthesis of tyrosine aminotransferase and tryptophan oxygenase in rat liver.
Topics: Adrenal Glands; Adrenalectomy; Animals; Ascorbic Acid; Drug Synergism; Enzyme Activation; Female; Hydrocortisone; Liver; Methemoglobin; Olivomycins; Rats; Tryptophan; Tryptophan Oxygenase; Tyrosine Transaminase | 1973 |
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 |
Growth and macromolecular synthesis in the 3T6 mouse fibroblast. I. General description and the role of ascorbic acid.
Topics: Animals; Ascorbic Acid; Carbon Isotopes; Cell Line; Collagen; Culture Techniques; Fibroblasts; Glucosamine; Glycosaminoglycans; Hydroxyproline; Macromolecular Substances; Mice; Proline; Protein Biosynthesis; Time Factors; Tryptophan; Uronic Acids | 1970 |
Brain 5-hydroxytryptamine and anterior pituitary activation by reserpine and its analogs.
Topics: Adrenal Glands; Animals; Ascorbic Acid; Brain; Corticosterone; Deficiency Diseases; Fenclonine; Male; Pituitary Gland; Quinolizines; Rats; Reserpine; Serotonin; Stimulation, Chemical; Tetrabenazine; Tryptophan | 1971 |
Effects of antimicrotubular agents on glycosaminoglycan synthesis and secretion by embryonic chick cartilage and chondrocytes.
Topics: Animals; Ascorbic Acid; Carbon Radioisotopes; Cartilage; Chick Embryo; Chromatography, Ion Exchange; Colchicine; Collagen; Epiphyses; Glucosamine; Glycosaminoglycans; Microtubules; Nitriles; Organ Specificity; Proline; Protein Biosynthesis; Spectrometry, Fluorescence; Sulfur Radioisotopes; Tibia; Time Factors; Tritium; Tryptophan; Vinblastine | 1974 |
[Effects of injections of different substrates and an enzyme inhibitor on pigmentation in normal and albino Locusta migratoria L. (Orthop.)].
Topics: Albinism; Amino Acids; Animals; Ascorbic Acid; Benserazide; Folic Acid; Grasshoppers; Nialamide; Pigmentation; Reserpine; Tryptophan; Tyrosine | 1974 |
Chemical nature of the inactivation of Bacillus cereus penicillinase by iodine.
Topics: Ascorbic Acid; Bacillus cereus; beta-Lactamase Inhibitors; Chemical Phenomena; Chemistry; Diiodotyrosine; Drug Stability; Enzyme Activation; Hydrogen Peroxide; Hydrogen-Ion Concentration; Iodine; Iodine Isotopes; Iodoproteins; Kinetics; Monoiodotyrosine; Oxidation-Reduction; Penicillinase; Perchlorates; Periodic Acid; Potassium; Potassium Permanganate; Sodium; Spectrophotometry; Tryptophan; Tyrosine; Ultraviolet Rays | 1971 |
The synthesis of underhydroxylated collagen by 3 T6 mouse fibroblasts in culture.
Topics: Animals; Ascorbic Acid; Carbon Isotopes; Cell Line; Chick Embryo; Chromatography, Paper; Collagen; Fibroblasts; Hydroxylation; Hydroxyproline; Kinetics; Mice; Microbial Collagenase; Proline; Proteins; Tritium; Tryptophan | 1972 |
Studies of the metal sites of copper proteins. IV. Stellacyanin: preparation of apoprotein and involvement of sulfhydryl and tryptophan in the copper chromophore.
Topics: Apoproteins; Ascorbic Acid; Chemical Phenomena; Chemistry; Copper; Cyanides; Dialysis; Electron Spin Resonance Spectroscopy; Hydrogen-Ion Concentration; Kinetics; Mercury; Oxidation-Reduction; Plant Proteins; Silver; Spectrometry, Fluorescence; Spectrophotometry; Sulfhydryl Compounds; Tryptophan | 1972 |
Studies of the copper and heme cofactors of pseudomonad L-tryptophan-2,3-dioxygenase by electron paramagnetic resonance spectroscopy.
Topics: Allosteric Regulation; Ascorbic Acid; Binding Sites; Chromatography, Gel; Copper; Cyanides; Dialysis; Electron Spin Resonance Spectroscopy; Electrophoresis, Polyacrylamide Gel; Ferricyanides; Heme; Oxidation-Reduction; Protein Binding; Protein Denaturation; Pseudomonas; Spectrophotometry, Ultraviolet; Tryptophan; Tryptophan Oxygenase; Ultrafiltration | 1973 |
The mechanism of inhibition of rat liver tryptophan pyrrolase activity by 4-hydroxypyrazolo(3,4-d)pyrimidine (Allopurinol).
Topics: Allopurinol; Alloxan; Animals; Ascorbic Acid; Cyclic AMP; Ethanol; Heme; Hydrocortisone; Hypoxanthines; Injections, Intraperitoneal; Liver; Male; NAD; Rats; Tryptophan; Tryptophan Oxygenase; Xanthine Oxidase; Xanthines | 1973 |
[Indoles for comparison with Amanita toxins. VI. Hydroxylation of tryptophan and tryptophyl peptides].
Topics: 5-Hydroxytryptophan; Ascorbic Acid; Chromatography, Paper; Edetic Acid; Iron; Mycotoxins; Oxygen; Peptides; Spectrum Analysis; Tryptophan; Ultraviolet Rays | 1968 |
Cerebral tryptophan-2,3-dioxygenase (pyrrolase) and its induction in rat brain.
Topics: Animals; Ascorbic Acid; Brain; Carbon Radioisotopes; Chromatography, Ion Exchange; Chromatography, Paper; Chromatography, Thin Layer; Dithiothreitol; Enzyme Induction; Female; Hydrocortisone; Liver; Spectrometry, Fluorescence; Spectrophotometry, Ultraviolet; Tryptophan; Tryptophan Oxygenase | 1974 |
Effect of electron donors and acceptors on alcohol dehydrogenase activity during the growth of Escherichia coli.
Topics: Alcohol Oxidoreductases; Aniline Compounds; Ascorbic Acid; Catechols; Colorimetry; Culture Media; Cytosine; Escherichia coli; Glutathione; Histidine; Iodates; Iodine; Nitrates; Oxidation-Reduction; Phenylalanine; Potassium Permanganate; Sulfides; Sulfites; Thymine; Time Factors; Tryptophan | 1973 |
On the role of copper in activation of and catalysis by tryptophan-2,3-dioxygenase.
Topics: Animals; Ascorbic Acid; Binding, Competitive; Catalysis; Chelating Agents; Copper; Enzyme Activation; Heme; Iron; Kinetics; Liver; Macromolecular Substances; Models, Chemical; Phenanthrolines; Pseudomonas; Rats; Species Specificity; Sulfonic Acids; Thiocarbamates; Tryptophan; Tryptophan Oxygenase | 1972 |
Primary acquired sideroblastic anaemia: response to treatment with pyridoxal-5-phosphate.
Topics: Aged; Anemia, Sideroblastic; Ascorbic Acid; Female; Folic Acid; Hemoglobinometry; Humans; Pyridoxal Phosphate; Pyridoxine; Reticulocytes; Tryptophan | 1973 |
[Clinical test of the adapted infant's rady-to-eat lactic food Pre-Aptamil].
Topics: Apgar Score; Ascorbic Acid; Birth Weight; Body Weight; Diet Therapy; Female; Food Preservation; Histidine; Humans; Infant Food; Infant Nutritional Physiological Phenomena; Infant, Newborn; Infant, Newborn, Diseases; Infant, Premature; Isoleucine; Leucine; Lysine; Male; Methionine; Phenylalanine; Threonine; Tryptophan; Valine | 1973 |
Tryptophan pyrrolase in rat liver after phenobarbital administration.
Topics: Animals; Ascorbic Acid; Dactinomycin; Enzyme Activation; Enzyme Induction; Heme; Hydrocortisone; Liver; Male; Phenobarbital; Proteins; Rats; Time Factors; Tryptophan; Tryptophan Oxygenase | 1973 |
Letter: Was it a drug? (Optimax).
Topics: Antidepressive Agents; Ascorbic Acid; Drug Combinations; Drug Prescriptions; Fees, Medical; Jurisprudence; Legislation, Drug; Pyridoxine; State Medicine; Tryptophan; United Kingdom | 1974 |
Letter: Interrelationships of ascorbic acid and tryptophan metabolism.
Topics: Africa; Ascorbic Acid; Black People; Ethnicity; Female; Hemosiderosis; Humans; Male; Models, Chemical; Pellagra; Scurvy; Tryptophan | 1974 |
Tryptophan pyrrolase in the liver of guinea pig: the absence of hydrocortisone induction.
Topics: Animals; Ascorbic Acid; Dactinomycin; Enzyme Induction; Female; Guinea Pigs; Hydrocortisone; Liver; Male; Oxidation-Reduction; Prednisolone; RNA; Solubility; Thymus Gland; Time Factors; Tritium; Tryptophan; Tryptophan Oxygenase; Uridine | 1972 |
Dietary intakes of mental patients.
Topics: Ascorbic Acid; Calcium; Dietary Carbohydrates; Dietary Proteins; Female; Food Analysis; Humans; Iron; Male; Mental Disorders; Nicotinic Acids; Nutrition Disorders; Nutrition Surveys; Riboflavin; Thiamine; Tryptophan; Vitamin A; Vitamins | 1972 |
The mechanism of inhibition of tryptophan 2,3-dioxygenase by aquayamycin.
Topics: Anti-Bacterial Agents; Ascorbic Acid; Benz(a)Anthracenes; Chemical Phenomena; Chemistry; Kinetics; Light; Oxidation-Reduction; Oxygen; Oxygenases; Polarography; Pseudomonas; Pyrans; Radiation Effects; Spectrophotometry; Sulfites; Tryptophan | 1971 |
The role of superoxide and hydroperoxide in the reductive activation of tryptophan-2,3-dioxygenase.
Topics: Allosteric Regulation; Animals; Ascorbic Acid; Binding Sites; Borohydrides; Catalase; Depression, Chemical; Dithiothreitol; Enzyme Activation; Free Radicals; Liver; Oxidation-Reduction; Oxidoreductases; Oxygen; Peroxides; Protein Binding; Pseudomonas; Rats; Species Specificity; Tryptophan; Tryptophan Oxygenase; Xanthine Oxidase | 1971 |
Brain amine decrease in leucine-fed rats.
Topics: 5-Hydroxytryptophan; Adrenal Glands; Animal Feed; Animals; Ascorbic Acid; Blood-Brain Barrier; Body Weight; Brain; Brain Chemistry; Carboxy-Lyases; Corticosterone; Diet; Dopamine; Female; Glutamates; Leucine; Liver; Male; Mixed Function Oxygenases; Monoamine Oxidase; Norepinephrine; Organ Size; Oxygenases; Phenylalanine; Rats; Serotonin; Transaminases; Tryptophan; Tryptophan Oxygenase | 1967 |
Microdetermination of ascorbic acid and tryptophan by colorimetry.
Topics: Ascorbic Acid; Colorimetry; Microchemistry; Tetrazolium Salts; Tryptophan | 1970 |
Tryptophan-5-hydroxylase in rat small intestine.
Topics: Animals; Ascorbic Acid; Chromatography, Paper; Copper; Hydroxyindoleacetic Acid; In Vitro Techniques; Intestine, Small; Male; Mixed Function Oxygenases; Oxygen; Rats; Tryptophan | 1971 |
Studies on the interaction of carbon monoxide with tryptophan oxygenase of Pseudomonas.
Topics: Ascorbic Acid; Binding Sites; Carbon Monoxide; Heme; Iron; Kinetics; Light; Oxygen; Porphyrins; Protein Binding; Pseudomonas; Tryptophan; Tryptophan Oxygenase | 1968 |
A reaction between typtophan and ascorbic acid: a possible source of error in the assay of tryptophan oxygenase (tryptophan pyrrolase).
Topics: Animals; Ascorbic Acid; In Vitro Techniques; Liver; Oxygen Consumption; Rats; Spectrophotometry; Time Factors; Tryptophan; Tryptophan Oxygenase | 1968 |
Effect of riboflavin, pyridoxine and other vitamins on the urinary corticoids and tryptophan metabolism in children.
Topics: 17-Hydroxycorticosteroids; 17-Ketosteroids; Ascorbic Acid; Body Height; Body Weight; Child; Creatinine; Female; Humans; Male; Nicotinic Acids; Palmitic Acids; Pantothenic Acid; Pyridoxine; Riboflavin; Tryptophan; Vitamins; Xanthurenates | 1968 |
Studies in the etiology and prevention of bladder carcinoma.
Topics: Ascorbic Acid; Carcinogens; Free Radicals; Humans; Kynurenine; Luminescent Measurements; ortho-Aminobenzoates; Oxidation-Reduction; Smoking; Tryptophan; Ultraviolet Rays; Urinary Bladder Neoplasms | 1968 |
Tryptophan oxygenase activation and ascorbate oxidation in whole homogenates from rat liver.
Topics: Adenine Nucleotides; Animals; Ascorbic Acid; Chromatography, Gel; Kinetics; Liver; Magnesium; Male; Methods; Microsomes; Rats; Spectrum Analysis; Tryptophan; Tryptophan Oxygenase | 1969 |
Effects of some substances on ergot alkaloid production.
Topics: Ascorbic Acid; Benz(a)Anthracenes; Benzopyrenes; Catalase; Culture Media; Ergot Alkaloids; Hydrocortisone; Oxygenases; Phenobarbital; Phenylalanine; Thyroxine; Tryptophan | 1969 |
Studies in the etiology and prevention of bladder carcinoma.
Topics: Amines; Ascorbic Acid; Carcinogens; Humans; Luminescent Measurements; Oxidation-Reduction; Smoking; Spectrum Analysis; Tryptophan; Urinary Bladder Neoplasms | 1969 |
Brain 5-hydroxytryptamine and anterior pituitary activation by stress.
Topics: Adrenal Glands; Amphetamine; Animals; Ascorbic Acid; Brain; Cold Temperature; Corticosterone; Diet; Male; Pituitary Gland; Pituitary-Adrenal System; Rats; Serotonin; Stimulation, Chemical; Stress, Physiological; Tranylcypromine; Tryptophan | 1969 |
On the activation and catalytic mechanism of microbial tryptophan pyrrolase.
Topics: Ascorbic Acid; Catalysis; Heme; In Vitro Techniques; Kynurenine; Oxygenases; Pseudomonas; Tryptophan; Tryptophan Oxygenase | 1964 |
A reinterpretation of the stabilization of tryptophan pyrrolase by its substrate.
Topics: Animals; Ascorbic Acid; Hydrocortisone; In Vitro Techniques; Liver; Methemoglobin; Oxygenases; Rats; Tryptophan; Tryptophan Oxygenase | 1966 |
Tryptophan pyrrolase of rabbit intestine. D- and L-tryptophan-cleaving enzyme or enzymes.
Topics: Amidohydrolases; Ascorbic Acid; Carbon Monoxide; Catalysis; Cyanides; Heme; Intestine, Small; Intestines; Kinetics; Kynurenine; Light; Methylene Blue; Spectrophotometry; Tryptophan; Tryptophan Oxygenase | 1967 |
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 |
The repair of oxidized amino acids by antioxidants.
Topics: Antioxidants; Ascorbic Acid; Azides; Free Radicals; Muramidase; Oxidation-Reduction; Spectrophotometry; Tryptophan; Tyrosine; Uric Acid; Vitamin E | 1984 |
Summation and synergism in the promotion of urinary bladder carcinogenesis initiated by N-butyl-N-(4-hydroxybutyl)-nitrosamine in F344 rats.
Topics: Allopurinol; Animals; Ascorbic Acid; Butylated Hydroxyanisole; Butylhydroxybutylnitrosamine; Drug Synergism; Hyperplasia; Male; Nitrosamines; Rats; Rats, Inbred F344; Saccharin; Tryptophan; Urinary Bladder; Urinary Bladder Neoplasms | 1984 |
Uptake of ascorbic acid by human granulocytes.
Topics: Ascorbic Acid; Biological Transport; Cells, Cultured; Chemotactic Factors; Dipeptides; Female; Fructose; Galactose; Glucose; Granulocytes; Humans; Male; N-Formylmethionine Leucyl-Phenylalanine; Tryptophan | 1984 |
Inhibitors of glyoxalase I in vitro.
Topics: Ascorbic Acid; Coumarins; Erythrocytes; Esculin; Humans; In Vitro Techniques; Lactoylglutathione Lyase; Lyases; Tryptophan | 1983 |
Promoting effects of various chemicals in rat urinary bladder carcinogenesis initiated by N-nitroso-n-butyl-(4-hydroxybutyl)amine.
Topics: Acetazolamide; Allopurinol; Animals; Ascorbic Acid; Body Weight; Butylhydroxybutylnitrosamine; Carcinogens; Hyperplasia; Male; Neoplasms, Experimental; Nitrosamines; Quercetin; Rats; Rats, Inbred F344; Saccharin; Tryptophan; Urinary Bladder; Urinary Bladder Neoplasms | 1983 |
Epinephrine and other activators of prostaglandin endoperoxide synthetase can reduce Fe3+-heme to Fe2+-heme.
Topics: Ascorbic Acid; Chemical Phenomena; Chemistry; Enzyme Activation; Epinephrine; Ferric Compounds; Ferrous Compounds; Heme; Lipoxygenase; Oxidation-Reduction; Tryptophan | 1980 |
Antioxidants increase the formation of 6-oxo-PGF1 alpha by ram seminal vesicle microsomes.
Topics: 6-Ketoprostaglandin F1 alpha; Animals; Antioxidants; Arachidonic Acid; Arachidonic Acids; Ascorbic Acid; Dose-Response Relationship, Drug; Male; Microsomes; Prostaglandins D; Prostaglandins E; Prostaglandins H; Seminal Vesicles; Sheep; Tryptophan | 1981 |
[Mutagenicity of the reaction products of L-ascorbic acid and L-tryptophan (author's transl)].
Topics: Ascorbic Acid; Carbolines; Chemical Phenomena; Chemistry; Furaldehyde; Mutagens; Salmonella typhimurium; Tryptophan | 1981 |
Drugs producing vitamin deficiencies.
Topics: Analgesics; Animals; Anti-Bacterial Agents; Anti-Inflammatory Agents; Anticonvulsants; Ascorbic Acid; Avitaminosis; Female; Folic Acid; Humans; Maternal-Fetal Exchange; Pregnancy; Pregnancy Complications; Tetracycline; Tryptophan; Vitamin B Complex | 1980 |
Cell culture tumor promotion experiments with saccharin, phorbol myristate acetate and several common food materials.
Topics: Animals; Ascorbic Acid; Cell Transformation, Neoplastic; Cells, Cultured; Mice; Pantothenic Acid; Phorbols; Saccharin; Tetradecanoylphorbol Acetate; Tryptophan | 1980 |
An overview of the RDAs for vitamins.
Topics: Ascorbic Acid; Diet; Folic Acid; Humans; Nicotinic Acids; Nutritional Physiological Phenomena; Nutritional Requirements; Public Policy; Pyridoxine; Tryptophan; United States; Vitamin A; Vitamin D; Vitamin E; Vitamins | 1980 |
The formation of the mutagenic substances in the reaction between L-ascorbic acid and L-tryptophan.
Topics: Ascorbic Acid; Mutagens; Tryptophan | 1980 |
Reactive absorption of ozone by aqueous biomolecule solutions: implications for the role of sulfhydryl compounds as targets for ozone.
Topics: Absorption; Ascorbic Acid; Cysteine; Glutathione; Hydrogen-Ion Concentration; Kinetics; Methionine; Models, Chemical; Muramidase; Oxidation-Reduction; Ozone; Sulfhydryl Compounds; Thiosulfates; Tryptophan | 1995 |
L-tryptophan and the eosinophilia-myalgia syndrome: a clinical and laboratory study.
Topics: Antibodies, Antinuclear; Antidepressive Agents; Ascorbic Acid; Diagnosis, Differential; Dose-Response Relationship, Drug; Drug Administration Schedule; Drug Combinations; Eosinophilia-Myalgia Syndrome; Eosinophils; Female; Fructose-Bisphosphate Aldolase; Humans; Leukocyte Count; Male; Pyridoxine; Tryptophan | 1994 |
NADPH-initiated cytochrome P450-mediated free metal ion-independent oxidative damage of microsomal proteins. Exclusive prevention by ascorbic acid.
Topics: Adenosine Diphosphate; Animals; Ascorbic Acid; Cytochrome P-450 Enzyme Inhibitors; Cytochrome P-450 Enzyme System; Guinea Pigs; Hydrolysis; Iron; Male; Microsomes, Liver; NADP; Oxidation-Reduction; Proteins; Tryptophan; Tyrosine | 1994 |
Interaction of alkaline phosphatase with cytochrome c.
Topics: Aerobiosis; Alkaline Phosphatase; Anaerobiosis; Animals; Ascorbic Acid; Chelating Agents; Circular Dichroism; Cytochrome c Group; Darkness; Edetic Acid; Electron Transport; Enzyme Inhibitors; Horses; Hydrogen-Ion Concentration; Light; Luminescent Measurements; Oxidation-Reduction; Potassium Chloride; Protein Binding; Protein Conformation; Tryptophan | 1996 |
Trp oxidation by copper-ascorbate under physiological conditions.
Topics: Adult; Aged; Aged, 80 and over; Ascorbic Acid; Cardiovascular Diseases; Cataract; Copper; Diabetes Mellitus; Diet; Humans; Lens, Crystalline; Middle Aged; Oxidation-Reduction; Peptides; Reference Values; Regression Analysis; Tryptophan | 1996 |
Quenching of UV-induced fluorescence by ascorbic acid in the aqueous humour.
Topics: Absorption; Animals; Aqueous Humor; Ascorbic Acid; Cattle; Dialysis; Eye Proteins; Fluorescence; Fluorometry; Light; Osmolar Concentration; Scattering, Radiation; Spectrophotometry; Tryptophan; Ultraviolet Rays | 1995 |
One-electron oxidation pathway of peroxynitrite decomposition in human blood plasma: evidence for the formation of protein tryptophan-centred radicals.
Topics: Ascorbic Acid; Benzenesulfonates; Bicarbonates; Blood Proteins; Chromatography, Gel; Electron Spin Resonance Spectroscopy; Electron Transport; Free Radicals; Glutathione; Humans; Methionine; Nitrates; Nitroso Compounds; Peptides; Pronase; Spin Trapping; Sulfhydryl Compounds; Tryptophan; Uric Acid | 1997 |
Changes of biological reducing activity in rat brain following closed head injury: a cyclic voltammetry study in normal and heat-acclimated rats.
Topics: Acclimatization; Animals; Antioxidants; Ascorbic Acid; Brain Chemistry; Brain Injuries; Craniocerebral Trauma; Disease Susceptibility; Electric Conductivity; Free Radical Scavengers; Heart; Hot Temperature; Male; Myocardium; Oxidation-Reduction; Oxidative Stress; Rats; Reactive Oxygen Species; Tryptophan | 1997 |
Affinity cleavage at the metal-binding site of phosphoenolpyruvate carboxykinase.
Topics: Amino Acid Sequence; Animals; Ascorbic Acid; Binding Sites; Chickens; Chromatography, High Pressure Liquid; Cysteine; Free Radical Scavengers; Guanosine Triphosphate; Humans; Hydrolysis; Kinetics; Liver; Metals; Phosphoenolpyruvate Carboxykinase (GTP); Tryptophan | 1997 |
The aggregation in human lens proteins blocks the scavenging of UVA-generated singlet oxygen by ascorbic acid and glutathione.
Topics: Aging; Antioxidants; Ascorbic Acid; Crystallins; Cysteine; Fluorescence; Free Radical Scavengers; Glutathione; Histidine; Humans; Peroxides; Photolysis; Protein Conformation; Protein Denaturation; Reactive Oxygen Species; Sodium Azide; Tryptophan; Ultraviolet Rays; Urea | 1998 |
Corneal epithelium and UV-protection of the eye.
Topics: Absorption; Animals; Ascorbic Acid; Cattle; Cornea; Fluorescence; Fluorometry; Glutathione; RNA; Spectrophotometry; Tryptophan; Ultraviolet Rays | 1998 |
Inhibition of LDL oxidation by melatonin requires supraphysiologic concentrations.
Topics: Antioxidants; Ascorbic Acid; Cells, Cultured; Electrophoresis, Agar Gel; Humans; Lipid Peroxidation; Lipoproteins, LDL; Macrophages; Melatonin; Oxidation-Reduction; Serotonin; Tryptophan; Vitamin E | 1998 |
Decrease in vitamin C concentration in human lenses during cataract progression.
Topics: Ascorbic Acid; Cataract; Disease Progression; Female; Fructose; Humans; Lens Nucleus, Crystalline; Lysine; Male; Sensitivity and Specificity; Tryptophan | 1998 |
Water soluble antioxidants in mammalian aqueous humor: interaction with UV B and hydrogen peroxide.
Topics: Aged; Analysis of Variance; Animals; Antioxidants; Aqueous Humor; Ascorbic Acid; Cataract; Chromatography, High Pressure Liquid; Cysteine; Disease Models, Animal; Female; Glutathione; Humans; Hydrogen Peroxide; Mammals; Oxidants; Rabbits; Rats; Rats, Sprague-Dawley; Tryptophan; Tyrosine; Ultraviolet Rays; Uric Acid | 1998 |
Human placental indoleamine 2,3-dioxygenase: cellular localization and characterization of an enzyme preventing fetal rejection.
Topics: Ascorbic Acid; Binding, Competitive; Catalase; Cytoplasm; Enzyme Inhibitors; Female; Fetus; Humans; Indoleamine-Pyrrole 2,3,-Dioxygenase; Isoenzymes; Kynurenine; Methylene Blue; Microvilli; Placenta; Subcellular Fractions; Substrate Specificity; Trophoblasts; Tryptophan; Tryptophan Oxygenase | 2000 |
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 |
3-Hydroxykynurenine and 3-hydroxyanthranilic acid generate hydrogen peroxide and promote alpha-crystallin cross-linking by metal ion reduction.
Topics: 3-Hydroxyanthranilic Acid; Animals; Ascorbic Acid; Cataract; Cattle; Copper; Crystallins; Electrochemistry; Humans; Hydrogen Peroxide; Iron; Kynurenine; Lens, Crystalline; Metals; Oxidation-Reduction; Superoxides; Tryptophan | 2000 |
UV absorption by uric acid in diurnal bird aqueous humor.
Topics: Absorption; Animals; Aqueous Humor; Ascorbic Acid; Cattle; Chickens; Chromatography, High Pressure Liquid; Eye Proteins; Spectrophotometry, Ultraviolet; Tryptophan; Turkeys; Tyrosine; Ultraviolet Rays; Uric Acid | 2000 |
Interactions of superoxide anion with enzyme radicals: kinetics of reaction with lysozyme tryptophan radicals and corresponding effects on tyrosine electron transfer.
Topics: Anions; Ascorbic Acid; Electron Transport; Free Radicals; Hydrogen-Ion Concentration; Kinetics; Micelles; Muramidase; Oxidation-Reduction; Oxygen; Pulse Radiolysis; Superoxides; Tryptophan; Tyrosine | 2000 |
Riboflavin photodegradation and photosensitizing effects are highly dependent on oxygen and ascorbate concentrations.
Topics: Ascorbic Acid; Hydrolysis; Oxygen; Photosensitizing Agents; Riboflavin; Tryptophan | 2000 |
Inhibition of low-density lipoprotein oxidation by carnosine histidine.
Topics: Antioxidants; Ascorbic Acid; Carnosine; Copper; Fluorescence; Histidine; Lipid Peroxidation; Lipoproteins, LDL; Oxidation-Reduction; Serum Albumin, Bovine; Tryptophan | 2001 |
The use of carbon paste electrode in the direct voltammetric determination of tryptophan in pharmaceutical formulations.
Topics: Ascorbic Acid; Buffers; Carbon; Drug Combinations; Electrochemistry; Electrodes; Indicators and Reagents; Tablets; Tryptophan | 2002 |
Comparison between modifications of lens proteins resulted from glycation with methylglyoxal, glyoxal, ascorbic acid, and fructose.
Topics: Animals; Ascorbic Acid; Cattle; Crystallins; Electrophoresis, Polyacrylamide Gel; Fructose; Glycosylation; Glyoxal; L-Lactate Dehydrogenase; Protein Conformation; Pyruvaldehyde; Spectrometry, Fluorescence; Spectrophotometry, Ultraviolet; Sulfhydryl Compounds; Tryptophan | 2002 |
Protective role of certain chemicals against UV-B-induced damage in the nitrogen-fixing cyanobacterium, Nostoc muscorum.
Topics: Ascorbic Acid; Cyanobacteria; Cysteine; Glutathione; Nitrogen Fixation; Pyruvic Acid; Radiation-Protective Agents; Tryptophan; Ultraviolet Rays | 2003 |
Advanced glycation endproducts as UVA photosensitizers of tryptophan and ascorbic acid: consequences for the lens.
Topics: Aging; Antioxidants; Ascorbic Acid; Glycation End Products, Advanced; Humans; Lens, Crystalline; Oxidation-Reduction; Oxygen; Photosensitizing Agents; Riboflavin; Tryptophan; Ultraviolet Rays | 2003 |
[Protection by ascorbic acid against tryptophan metabolic disorders in vitamin B2 deficiency].
Topics: Ascorbic Acid; Humans; Metabolic Diseases; Riboflavin; Riboflavin Deficiency; Tryptophan; Vitamin B Deficiency; Vitamins | 1956 |
The adrenal response to alcohol intoxication in rats maintained with diets deficient in tryptophan, niacin or lysine.
Topics: Adrenal Cortex; Alcoholic Intoxication; Animals; Ascorbic Acid; Cholesterol; Diet; Lysine; Niacin; Pellagra; Rats; Tryptophan | 1958 |
The role of ascorbic acid in the oxidation of tryptophan to 5-hydroxytryptophan.
Topics: 5-Hydroxytryptophan; Ascorbic Acid; Biochemical Phenomena; Oxidation-Reduction; Tryptophan; Vitamins | 1961 |
A NEW METHOD FOR QUANTITATIVE PAPER CHROMATOGRAPHY.
Topics: Alanine; Ascorbic Acid; Chromatography; Chromatography, Paper; Colorimetry; Creatine; Creatinine; Ephedrine; Iodides; Iodine; Malonates; Pilocarpine; Research; Tryptophan | 1963 |
THE HYDROXYLATION OF SKATOLE.
Topics: Acetophenones; Ascorbic Acid; Chromatography; Edetic Acid; Feces; Hydroxylation; Indoles; Iron; Research; Skatole; Sulfates; Tryptophan | 1963 |
[THE EUTROPHIC ACTION FAVORING ANTIBIOTIC TOLERANCE OF A VITAMIN COMPLEX: VITAMIN C AND VITAMIN B-6].
Topics: Anti-Bacterial Agents; Ascorbic Acid; Drug Tolerance; Immune Tolerance; Isoniazid; Metabolism; Pyridoxine; Toxicology; Tryptophan; Urine; Vitamin B 6; Vitamins; Xanthurenates | 1964 |
[ON THE COLORIMETRY OF ALPHA-AMINO ACIDS AND PRIMARY AMINES WITH THE AID OF ASCORBIC ACID].
Topics: Alanine; Amines; Amino Acids; Ammonia; Ascorbic Acid; Colorimetry; Ethylamines; Glutamates; Glycine; Histidine; Lysine; Methionine; Research; Spectrophotometry; Threonine; Tryptophan | 1964 |
DIVERGENT RESPONSE TO INHIBITION BY PHENYLALANINE AND TRYPTOPHAN HYDROXYLATING SYSTEMS IN VITRO.
Topics: Amino Acids; Ascorbic Acid; Benzoates; Borates; Dimercaprol; Enzyme Inhibitors; Hydroxylation; In Vitro Techniques; Liver; Mixed Function Oxygenases; NAD; Pharmacology; Phenylalanine; Pterins; Rats; Research; Thioctic Acid; Tryptophan | 1964 |
VITAMIN B6 REQUIREMENT FOR ADULT MEN.
Topics: Adult; Ascorbic Acid; Blood; Diet; Dietary Proteins; Humans; Kynurenine; Male; Oxalates; Pyridoxine; Tryptophan; Urine; Vitamin B 6; Vitamin B 6 Deficiency; Xanthurenates | 1964 |
INFLUENCE OF SOME INHIBITING AND ACTIVATING SUBSTANCES ON THE LIGHT REACTION IN VITRO OF PHOTOBACTERIUM PHOSPHOREUM.
Topics: Ascorbic Acid; Benzoates; Cysteine; Ferrocyanides; Flavin Mononucleotide; Fluorescence; Hydrogen Peroxide; In Vitro Techniques; Light; Luciferases; Oxidoreductases; Pharmacology; Photobacterium; Research; Spectrophotometry; Tryptophan | 1964 |
[THE ANTIEDEMA-ANTIINFLAMMATORY ACTION OF AESCIN AND ITS RELATIONS TO THE ADRENO-HYPOPHYSIAL AXIS].
Topics: Adrenal Cortex Hormones; Adrenal Glands; Adrenalectomy; Aesculus; Animals; Anti-Inflammatory Agents; Ascorbic Acid; Biomedical Research; Cholesterol; Edema; Escin; Guinea Pigs; Hypophysectomy; Inflammation; Lipid Metabolism; Metabolism; Pharmacology; Pituitary Gland; Rats; Research; Saponins; Tryptophan | 1964 |
ON THE MECHANISM OF THE BRAIN SEROTONIN DEPLETION IN EXPERIMENTAL PHENYLKETONURIA.
Topics: 5-Hydroxytryptophan; Adrenal Glands; Ascorbic Acid; Blood; Brain; Brain Chemistry; Carboxy-Lyases; Cholinesterases; Corticosterone; Dopamine; Glutamates; Liver; Metabolism; Mixed Function Oxygenases; Norepinephrine; Phenylalanine; Phenylketonurias; Rats; Research; Serotonin; Transaminases; Tryptophan; Tyrosine | 1965 |
[Role of riboflavin in the metabolism of tryptophan L and D. Effect of ascorbic acid on avitaminosis B2 and repercussion on the metabolism of tryptophan L].
Topics: Ascorbic Acid; Avitaminosis; Humans; Riboflavin; Riboflavin Deficiency; Tryptophan; Vitamin B Deficiency; Vitamins | 1959 |
Biogenesis of ascorbigen, 3-indolylacetonitrile and indole-3-carboxylic acid from D, L-tryptophan-3-14C in Brassica oleracea L.
Topics: Acetonitriles; Ascorbic Acid; Brassica; Brassicaceae; Indoles; Plants; Tryptophan | 1960 |
Effect of supplemental magnesium, tryptophan, vitamin C and vitamin E on pigs' stress responses to vibration.
Topics: Animal Welfare; Animals; Ascorbic Acid; Dietary Supplements; Least-Squares Analysis; Magnesium; Stress, Psychological; Swine; Swine Diseases; Tryptophan; Vibration; Vitamin E | 2004 |
Influence of supplemental magnesium, tryptophan, vitamin C, and vitamin E on stress responses of pigs to vibration.
Topics: Adaptation, Psychological; Amino Acids, Neutral; Animals; Ascorbic Acid; Behavior, Animal; Catecholamines; Dietary Supplements; Female; Heart Rate; Hydrocortisone; Least-Squares Analysis; Magnesium; Male; Propanolamines; Saliva; Stress, Physiological; Swine; Tryptophan; Vibration; Vitamin E | 2005 |
Reaction of 5-aminosalicylic acid with peroxyl radicals: protection and recovery by ascorbic acid and amino acids.
Topics: Amidines; Anti-Inflammatory Agents, Non-Steroidal; Ascorbic Acid; Cysteine; Electrochemistry; Mesalamine; Oxidants; Oxidation-Reduction; Peroxides; Phycocyanin; Tryptophan | 2005 |
On the mechanism of the ascorbic acid-induced release of nitric oxide from N-nitrosated tryptophan derivatives: scavenging of NO by ascorbyl radicals.
Topics: Ascorbic Acid; Dehydroascorbic Acid; Electron Spin Resonance Spectroscopy; Free Radicals; Magnetic Resonance Spectroscopy; Molecular Structure; Nitric Oxide; Nitrites; Nitrogen Oxides; Nitrosation; Nitroso Compounds; Oxidation-Reduction; Tryptophan | 2006 |
Vitamin C and E suppress mitogen-stimulated peripheral blood mononuclear cells in vitro.
Topics: Antioxidants; Ascorbic Acid; Dose-Response Relationship, Drug; Humans; In Vitro Techniques; Leukocytes, Mononuclear; Mitogens; Neopterin; Tryptophan; Vitamin E | 2007 |
Biochemical mechanisms leading to tryptophan 2,3-dioxygenase activation.
Topics: Aedes; Animals; Ascorbic Acid; Enzyme Activation; Hydrogen Peroxide; Kynurenine; Oxidants; Recombinant Proteins; Reducing Agents; Spectrophotometry, Ultraviolet; Sulfites; Superoxides; Tryptophan; Tryptophan Oxygenase | 2007 |
Role of tryptophan-208 residue in cytochrome c oxidation by ascorbate peroxidase from Leishmania major-kinetic studies on Trp208Phe mutant and wild type enzyme.
Topics: Amino Acid Sequence; Animals; Ascorbate Peroxidases; Ascorbic Acid; Cytochromes c; Hydrogen Peroxide; Kinetics; Leishmania major; Models, Biological; Molecular Sequence Data; Mutant Proteins; Oxidation-Reduction; Peroxidases; Phenylalanine; Spectrum Analysis; Structure-Activity Relationship; Substrate Specificity; Tryptophan | 2008 |
The pyridoxamine action on Amadori compounds: A reexamination of its scavenging capacity and chelating effect.
Topics: Amino Acids; Ascorbic Acid; Chelating Agents; Chromatography, High Pressure Liquid; Free Radical Scavengers; Fructose; Glucose; Glycation End Products, Advanced; Glycosylation; Guanidines; Kinetics; Ligands; Magnetic Resonance Spectroscopy; Molecular Structure; Organometallic Compounds; Oxidation-Reduction; Pyridoxamine; Schiff Bases; Stereoisomerism; Time Factors; Tryptophan; Zinc | 2008 |
Tryptophan residues are targets in hypothiocyanous acid-mediated protein oxidation.
Topics: Amino Acid Sequence; Antioxidants; Ascorbic Acid; Fluorescent Dyes; Glutathione; Humans; Hypochlorous Acid; Molecular Sequence Data; Molecular Structure; Myoglobin; Oxidation-Reduction; Peptide Fragments; Peptide Mapping; Protein Denaturation; Serum Albumin; Sulfhydryl Compounds; Thiocyanates; Tryptophan | 2008 |
Simultaneous determination of tryptophan, uric acid and ascorbic acid at iron(III) doped zeolite modified carbon paste electrode.
Topics: Ascorbic Acid; Calibration; Carbon; Electrochemistry; Electrodes; Humans; Hydrogen-Ion Concentration; Iron; Molecular Structure; Oxidation-Reduction; Reproducibility of Results; Surface Properties; Time Factors; Tryptophan; Uric Acid; Zeolites | 2008 |
Quenching mechanisms and kinetics of Trolox and ascorbic acid on the riboflavin-photosensitized oxidation of tryptophan and tyrosine.
Topics: Ascorbic Acid; Chromans; Kinetics; Oxidation-Reduction; Photochemistry; Riboflavin; Singlet Oxygen; Tryptophan; Tyrosine | 2008 |
Efficient repair of protein radicals by ascorbate.
Topics: Animals; Ascorbic Acid; Cattle; Chymotrypsin; In Vitro Techniques; Insulin; Lactoglobulins; Oxidative Stress; Pepsin A; Protein Binding; Protein Processing, Post-Translational; Pulse Radiolysis; Reactive Nitrogen Species; Reactive Oxygen Species; Serum Albumin, Bovine; Swine; Tryptophan; Tyrosine | 2009 |
Tryptophan metabolites from young human lenses and the photooxidation of ascorbic acid by UVA light.
Topics: Adolescent; Adult; Aged; Aged, 80 and over; Aging; Ascorbic Acid; Chromatography, High Pressure Liquid; Crystallins; Glucosides; Glutathione; Humans; Lens, Crystalline; Mass Spectrometry; Middle Aged; Oxidation-Reduction; Phenylbutyrates; Radiation-Sensitizing Agents; Subcellular Fractions; Tryptophan; Ultraviolet Rays | 2009 |
Ferritin-dependent radical generation in rat liver homogenates.
Topics: Adenosine Triphosphate; Animals; Antioxidants; Ascorbic Acid; Chelating Agents; Dehydroascorbic Acid; Edetic Acid; Electron Spin Resonance Spectroscopy; Ferritins; Hydroxyl Radical; Iron; Kinetics; Liver; Male; Microsomes, Liver; Oxidation-Reduction; Protein Conformation; Rats; Rats, Wistar; Sulfhydryl Compounds; Tryptophan; Tyrosine | 2009 |
In situ ATR-FTIR investigation on the preparation and enantiospecificity of chiral polyelectrolyte multilayers.
Topics: Ascorbic Acid; Electrolytes; Glutamic Acid; Hydrogen-Ion Concentration; Osmolar Concentration; Permeability; Polyelectrolytes; Polylysine; Polymers; Spectroscopy, Fourier Transform Infrared; Stereoisomerism; Sulfonic Acids; Tryptophan | 2009 |
Absorbance detector for high-performance liquid chromatography based on light-emitting diodes for the deep-ultraviolet range.
Topics: Ascorbic Acid; Chromatography, High Pressure Liquid; Electrical Equipment and Supplies; Electronics; Equipment Design; Reproducibility of Results; Sensitivity and Specificity; Tryptophan; Ultraviolet Rays | 2011 |
Simultaneous and sensitive determination of a quaternary mixture of AA, DA, UA and Trp using a modified GCE by iron ion-doped natrolite zeolite-multiwall carbon nanotube.
Topics: Ascorbic Acid; Biosensing Techniques; Calibration; Dopamine; Electrochemistry; Electrodes; Hydrogen-Ion Concentration; Microscopy, Electron, Scanning; Microscopy, Electron, Transmission; Nanotubes, Carbon; Oxidation-Reduction; Tryptophan; Uric Acid; Zeolites | 2011 |
Electrodeposited acetaminophen as a bifunctional electrocatalyst for simultaneous determination of ascorbic acid, glutathione, adrenaline and tryptophan.
Topics: Acetaminophen; Ascorbic Acid; Catalysis; Electrochemical Techniques; Electrodes; Epinephrine; Glutathione; Reproducibility of Results; Sensitivity and Specificity; Tryptophan | 2011 |
Direct electrochemical reduction of graphene oxide and its application to determination of L-tryptophan and L-tyrosine.
Topics: Ascorbic Acid; Buffers; Electrochemistry; Electrodes; Graphite; Indicators and Reagents; Reproducibility of Results; Spectrum Analysis, Raman; Tryptophan; Tyrosine; Uric Acid | 2013 |
Simultaneous determination of ascorbic acid, dopamine, uric acid and tryptophan on gold nanoparticles/overoxidized-polyimidazole composite modified glassy carbon electrode.
Topics: Ascorbic Acid; Carbon; Dopamine; Electrochemistry; Electrodes; Glass; Gold; Humans; Hydrogen-Ion Concentration; Imidazoles; Metal Nanoparticles; Oxidation-Reduction; Polymers; Reproducibility of Results; Time Factors; Tryptophan; Uric Acid | 2012 |
Electrosynthesis of an imidazole derivative and its application as a bifunctional electrocatalyst for simultaneous determination of ascorbic acid, adrenaline, acetaminophen, and tryptophan at a multi-wall carbon nanotubes modified electrode surface.
Topics: Acetaminophen; Ascorbic Acid; Biosensing Techniques; Catalysis; Complex Mixtures; Conductometry; Electrodes; Electroplating; Epinephrine; Equipment Design; Equipment Failure Analysis; Imidazoles; Nanotechnology; Nanotubes, Carbon; Reproducibility of Results; Sensitivity and Specificity; Tryptophan | 2013 |
Facile synthesis of graphene hybrid tube-like structure for simultaneous detection of ascorbic acid, dopamine, uric acid and tryptophan.
Topics: Ascorbic Acid; Dopamine; Electrochemical Techniques; Electrodes; Graphite; Microscopy, Electron, Scanning; Time Factors; Tryptophan; Uric Acid | 2012 |
Vitamin C promotes maturation of T-cells.
Topics: Animals; Ascorbic Acid; Azepines; Cells, Cultured; Culture Media; Epigenesis, Genetic; Gene Expression; Gene Rearrangement, T-Lymphocyte; Histone Methyltransferases; Histone-Lysine N-Methyltransferase; Histones; Immunologic Factors; Methylation; Mice; Mice, Inbred C57BL; Phthalimides; Protein Processing, Post-Translational; Quinazolines; Receptors, Antigen, T-Cell; T-Lymphocytes; Tryptophan | 2013 |
Simultaneous and sensitive determination of ascorbic acid, dopamine, uric acid, and tryptophan with silver nanoparticles-decorated reduced graphene oxide modified electrode.
Topics: Ascorbic Acid; Catalysis; Dopamine; Electrochemical Techniques; Electrodes; Graphite; Humans; Metal Nanoparticles; Oxidation-Reduction; Reproducibility of Results; Silver; Spectrophotometry, Ultraviolet; Spectrum Analysis, Raman; Tryptophan; Uric Acid; X-Ray Diffraction | 2013 |
Binding of ascorbic acid and α-tocopherol to bovine serum albumin: a comparative study.
Topics: Adsorption; alpha-Tocopherol; Ascorbic Acid; Binding Sites; Calorimetry; Entropy; Hydrogen Bonding; Ibuprofen; Protein Binding; Serum Albumin, Bovine; Spectroscopy, Fourier Transform Infrared; Thermodynamics; Tryptophan; Tyrosine; Warfarin | 2014 |
Oxidative and nitrosative stress induced in myofibrillar proteins by a hydroxyl-radical-generating system: impact of nitrite and ascorbate.
Topics: Ascorbic Acid; Dose-Response Relationship, Drug; Hydrogen Peroxide; Hydroxyl Radical; Myofibrils; Nitrites; Oxidation-Reduction; Oxidative Stress; Proteins; Schiff Bases; Tryptophan; Tyrosine | 2014 |
Simultaneous determination of ascorbic acid, dopamine and uric acid based on tryptophan functionalized graphene.
Topics: Ascorbic Acid; Dopamine; Electrochemical Techniques; Electrodes; Graphite; Molecular Structure; Nanocomposites; Particle Size; Surface Properties; Tryptophan; Uric Acid | 2014 |
An electrochemical sensor for simultaneous determination of ascorbic acid, dopamine, uric acid and tryptophan based on MWNTs bridged mesocellular graphene foam nanocomposite.
Topics: Ascorbic Acid; Dopamine; Electric Conductivity; Electrochemical Techniques; Electrodes; Graphite; Hydrogen-Ion Concentration; Nanocomposites; Nanotubes, Carbon; Reproducibility of Results; Surface Properties; Tryptophan; Uric Acid | 2014 |
Naturally-occurring tetrahydro-β-carboline alkaloids derived from tryptophan are oxidized to bioactive β-carboline alkaloids by heme peroxidases.
Topics: Ascorbic Acid; Carbolines; Enzyme Inhibitors; Harmine; Heme; Horseradish Peroxidase; Hydroxylamine; Kinetics; Lactoperoxidase; Oxidation-Reduction; Peroxidase; Peroxidases; Sodium Azide; Tryptophan | 2014 |
Highly selective and sensitive voltammetric sensor based on modified multiwall carbon nanotube paste electrode for simultaneous determination of ascorbic acid, acetaminophen and tryptophan.
Topics: Acetaminophen; Ascorbic Acid; Beverages; Caffeic Acids; Catalysis; Dielectric Spectroscopy; Electrochemical Techniques; Electrodes; Nanotubes, Carbon; Oxidation-Reduction; Tablets; Tryptophan | 2013 |
Simultaneous determination of ascorbic acid, dopamine, uric acid, and tryptophan by nanocrystalline ZSM-5 modified electrodes.
Topics: Ascorbic Acid; Biomarkers; Dopamine; Electrochemical Techniques; Electrodes; Humans; Reproducibility of Results; Sensitivity and Specificity; Tryptophan; Uric Acid; Zeolites | 2014 |
Metal-organic framework biosensor with high stability and selectivity in a bio-mimic environment.
Topics: Ascorbic Acid; Biosensing Techniques; Carbon; Coordination Complexes; Copper; Electrochemistry; Electrodes; Glass; Thiophenes; Tryptophan | 2015 |
Non-redox modulated fluorescence strategy for sensitive and selective ascorbic acid detection with highly photoluminescent nitrogen-doped carbon nanoparticles via solid-state synthesis.
Topics: Alginates; Animals; Ascorbic Acid; Biosensing Techniques; Carbon; Cattle; Fluorescent Dyes; Glucuronic Acid; Glutathione; Hexuronic Acids; Humans; Limit of Detection; Nanoparticles; Nitrogen; Quantum Theory; Serum Albumin, Bovine; Signal-To-Noise Ratio; Spectrometry, Fluorescence; Tryptophan | 2015 |
Chemical amplification of magnetic field effects relevant to avian magnetoreception.
Topics: Animals; Ascorbic Acid; Cryptochromes; Flavins; Light; Magnetic Fields; Muramidase; Sensory Receptor Cells; Tryptophan | 2016 |
Comparative Genomics Analysis of Streptococcus tigurinus Strains Identifies Genetic Elements Specifically and Uniquely Present in Highly Virulent Strains.
Topics: Ascorbic Acid; Bacterial Adhesion; Biological Transport; Genomics; Hyaluronic Acid; Indoles; Iron; Molecular Sequence Annotation; Phenotype; Proteomics; Species Specificity; Streptococcus; Tryptophan; Virulence | 2016 |
Stability improvement of natural food colors: Impact of amino acid and peptide addition on anthocyanin stability in model beverages.
Topics: Amino Acids; Anthocyanins; Ascorbic Acid; Citric Acid; Color; Daucus carota; Food Coloring Agents; Fruit and Vegetable Juices; Half-Life; Hydrogen-Ion Concentration; Peptides; Phenylalanine; Polylysine; Tryptophan; Tyrosine | 2017 |
Comparative metabolite and genome analysis of tuber-bearing potato species.
Topics: Ascorbic Acid; Chlorogenic Acid; Chromatography, High Pressure Liquid; Genetic Variation; Genome, Plant; Metabolome; Plant Tubers; Solanum; Solanum tuberosum; Species Specificity; Tandem Mass Spectrometry; Tryptophan; Tyrosine | 2017 |
Ascorbate protects the diheme enzyme, MauG, against self-inflicted oxidative damage by an unusual antioxidant mechanism.
Topics: Antioxidants; Ascorbate Peroxidases; Ascorbic Acid; Bacterial Proteins; Crystallography, X-Ray; Heme; Hydrogen Peroxide; Hydroxyurea; Indolequinones; Iron; Kinetics; Mutant Proteins; Oxidation-Reduction; Oxidative Stress; Paracoccus denitrificans; Spectrum Analysis; Time Factors; Tryptophan | 2017 |
Physiological Concentrations of Ascorbate Cannot Prevent the Potentially Damaging Reactions of Protein Radicals in Humans.
Topics: Ascorbic Acid; Free Radicals; Gamma Rays; Humans; Insulin; Muramidase; Nitrogen Oxides; Proteins; Pulse Radiolysis; Serum Albumin; Spectrophotometry, Ultraviolet; Tryptophan; Tyrosine | 2017 |
Fluorescence spectroscopic analysis of the interaction of papain and bromelain with l-ascorbic acid, α-tocopherol, β-carotene and astaxanthin.
Topics: alpha-Tocopherol; Antioxidants; Ascorbic Acid; beta Carotene; Bromelains; Papain; Spectrometry, Fluorescence; Thermodynamics; Tryptophan; Tyrosine; Xanthophylls | 2018 |
Delphinidin immobilized on silver nanoparticles for the simultaneous determination of ascorbic acid, noradrenalin, uric acid, and tryptophan.
Topics: Anthocyanins; Ascorbic Acid; Metal Nanoparticles; Norepinephrine; Oxidation-Reduction; Silver; Tryptophan; Uric Acid | 2016 |
A mathematical function for the description of nutrient-response curve.
Topics: Animals; Ascorbic Acid; Computer Simulation; Diet; Food; Humans; Models, Theoretical; Nutritional Requirements; Threonine; Tryptophan | 2017 |
Ascorbic acid may not be involved in cryptochrome-based magnetoreception.
Topics: Animals; Ascorbic Acid; Cryptochromes; Drosophila melanogaster; Drosophila Proteins; Eye Proteins; Flavin-Adenine Dinucleotide; Magnetic Fields; Molecular Dynamics Simulation; Signal Transduction; Songbirds; Tryptophan | 2017 |
The study of ameliorative effect of dietary supplementation of vitamin C, vitamin E, and tryptophan on Labeo rohita (Cyprinidae) fry exposed to intense light.
Topics: Animals; Ascorbic Acid; Blood Glucose; Cyprinidae; Dietary Supplements; Energy Metabolism; Glutathione Peroxidase; Glutathione Transferase; Hydrocortisone; Larva; Longevity; Melatonin; Nitric Oxide Synthase; Thiobarbituric Acid Reactive Substances; Tryptophan; Vitamin E; Weight Gain | 2019 |
Protective effects of bovine serum albumin on blueberry anthocyanins under illumination conditions and their mechanism analysis.
Topics: Anthocyanins; Antioxidants; Ascorbic Acid; Benzothiazoles; Binding Sites; Blueberry Plants; Circular Dichroism; Hydrogen Bonding; Light; Molecular Docking Simulation; Serum Albumin, Bovine; Spectrometry, Fluorescence; Spectrophotometry, Ultraviolet; Static Electricity; Sucrose; Sulfonic Acids; Thermodynamics; Tryptophan; Tyrosine | 2019 |
Self-assembled gold decorated polydopamine nanospheres as electrochemical sensor for simultaneous determination of ascorbic acid, dopamine, uric acid and tryptophan.
Topics: Ascorbic Acid; Dopamine; Electrochemical Techniques; Gold; Indoles; Nanospheres; Polymers; Tryptophan; Uric Acid | 2020 |
Enhancement of fast scan cyclic voltammetry detection of dopamine with tryptophan-modified electrodes.
Topics: Ascorbic Acid; Biosensing Techniques; Carbon; Dopamine; Electrochemical Techniques; Electrodes; Kinetics; Tryptophan; Uric Acid | 2020 |
A dual luminescent sensor coordination polymer for simultaneous determination of ascorbic acid and tryptophan.
Topics: Ascorbic Acid; Limit of Detection; Luminescence; Polymers; Tryptophan | 2020 |
Serotonin level as a potent diabetes biomarker based on electrochemical sensing: a new approach in a zebra fish model.
Topics: Animals; Ascorbic Acid; Biomarkers; Diabetes Mellitus; Dopamine; Electrochemical Techniques; Electrodes; Glucose; Gold; Hydrogen Bonding; Limit of Detection; Metal Nanoparticles; Microscopy, Electron, Scanning; Microscopy, Electron, Transmission; Nanocomposites; Particle Size; Reproducibility of Results; Serotonin; Tryptophan; Urea; Zebrafish | 2021 |
Photostability of l-tryptophan in aqueous solution: Effect of atmosphere and antioxidants addition.
Topics: Antioxidants; Ascorbic Acid; Atmosphere; Electron Spin Resonance Spectroscopy; Free Radicals; Photolysis; Solutions; Tryptophan; Water | 2021 |
Supplementation with Magnesium Salts-A Strategy to Increase Nutraceutical Value of
Topics: Agaricales; Ascorbic Acid; Biofortification; Chlorides; Culture Media; Dietary Supplements; Food Technology; Fruiting Bodies, Fungal; Functional Food; Magnesium; Phenol; Phenols; Pleurotus; Salts; Secale; Sugars; Sulfates; Thiamine; Tryptophan | 2021 |
Prevalence of multidrug resistant Salmonella spp. in dairy products with the evaluation of the inhibitory effects of ascorbic acid, pomegranate peel extract, and D-tryptophan against Salmonella growth in cheese.
Topics: Animals; Anti-Bacterial Agents; Ascorbic Acid; Cheese; Microbial Sensitivity Tests; Milk; Plant Extracts; Pomegranate; Prevalence; Salmonella; Tryptophan | 2022 |
Fundamental mechanisms of hexagonal boron nitride sensing of dopamine, tryptophan, ascorbic acid, and uric acid by first-principles study.
Topics: Ascorbic Acid; Boron Compounds; Dopamine; Electrochemical Techniques; Electrodes; Tryptophan; Uric Acid | 2022 |
Protective effects and mechanism of amino acids as chokeberry cyanidin and its glycoside protectant under the condition of vitamin C coexistence.
Topics: Amino Acids; Anthocyanins; Ascorbic Acid; Galactosides; Glycosides; Molecular Docking Simulation; Protective Agents; Tryptophan; Vitamins | 2022 |
Construction of a Chiral Fluorescent Probe for Tryptophan Enantiomers/Ascorbic Acid Identification.
Topics: Amino Acids; Ascorbic Acid; Carbon; Fluorescent Dyes; Stereoisomerism; Tryptophan | 2023 |