tryptophan has been researched along with ammonium hydroxide in 134 studies
| Timeframe | Studies, this research(%) | All Research% |
|---|---|---|
| pre-1990 | 98 (73.13) | 18.7374 |
| 1990's | 22 (16.42) | 18.2507 |
| 2000's | 7 (5.22) | 29.6817 |
| 2010's | 6 (4.48) | 24.3611 |
| 2020's | 1 (0.75) | 2.80 |
| Authors | Studies |
|---|---|
| Murphy, T; Zalkin, H | 1 |
| Carlsson, A; Holmin, T; Lindqvist, M; Siesjö, BK | 1 |
| Desai, JD; Pazoutová, S; Rehácek, Z; Sajdl, P | 1 |
| Fischer, JE; James, JH; Jeppsson, B; Ziparo, V | 1 |
| Gupta, AR; Rao, KK | 1 |
| Hevia, JE; Teitelbaum, H | 1 |
| Zieve, L | 1 |
| Brenner, W; Fischer, JE; Hummel, RP; James, JH; Jeppsson, BW | 1 |
| Borzani, M; Giovannini, M; Motta, G; Riva, E | 1 |
| Aguirre, A; Fischer, JE; Funovics, JM; James, JH; Keane, JM; Wesdorp, RI; Westman, T; Yoshimura, N | 1 |
| Fischer, JE; Funovics, J; James, JH; Keane, JM; Wesdorp, RI | 1 |
| Noda, K | 1 |
| Borisova, L | 1 |
| Fiedler, F; Hirschauer, C; Werle, E | 1 |
| Amos, HE; Burdick, D; Evans, J | 1 |
| Birkhahn, R; Border, JR; McMenamy, R; Oswald, G; Trietley, G; Vaidyanath, N; Yuan, TF | 1 |
| Anegawa, NJ; Batshaw, ML; Djali, S; Gorry, E; Heyes, MP; Mellits, ED; Robinson, MB | 1 |
| Butterworth, RF; Szerb, JC | 1 |
| Amino, N; Asari, S; Fushimi, R; Hayashi, S; Kimura, S; Miyai, K; Yamaguchi, Y | 1 |
| Mullen, KD; Weber, FL | 1 |
| Hawkins, RA; Jessy, J | 1 |
| Backes, G; Davidson, VL; Duine, JA; Huitema, F; Sanders-Loehr, J | 1 |
| Dubin, A; Javaid, JI; Mizock, BA; Poulos, A; Rackow, EC; Sabelli, HC | 1 |
| Boroń, P; Farbiszewski, R; Flisiak, R; Nowak, H; Pytel, B; Szpakowicz, T; Zimnoch, L | 1 |
| Arieff, AI; Fraser, CL | 1 |
| Brahamsha, B; Greenberg, EP | 1 |
| Gladisch, R; Holm, E; Leweling, H; Staedt, U; Tschepe, A | 1 |
| Colombo, JP | 1 |
| Celle, G; Gris, A; Marenco, S; Nobili, F; Novellone, G; Rodriguez, G; Rosadini, G; Testa, R | 1 |
| Bachmann, C; Colombo, JP; Gorgievski-Hrisoho, M | 1 |
| Farrell, GC; Maddison, JE; Stewart, P; Yau, D | 1 |
| Deuel, TF; Prusiner, S | 1 |
| Bender, RA; Brenchley, JE; DeLeo, AB; Magasanik, B; Paris, CG; Prival, MJ; Streicher, SL; Tyler, BM | 1 |
| Mitchison, GJ; Smith, RJ; Wilcox, M | 1 |
| Bleandonu, G; Boye, J | 1 |
| Henderson, EJ; Hwang, LH; Zalkin, H | 1 |
| Henderson, EJ; Hwang, LH; Nagano, H; Zalkin, H | 1 |
| Gallagher, BB | 1 |
| Asafov, GB; Ekisenina, NI; Ivanova, LM; Lumel'skiĭ, VIa; Smagin, VG | 1 |
| Snell, EE; Watanabe, T | 1 |
| Williams, R | 2 |
| Comty, CM; Shapiro, F; Wathen, RL | 1 |
| Jackson, EN; Yanofsky, C | 1 |
| Fujisawa, K; Kurihara, N | 1 |
| Host, WR; Rush, BF; Serlin, O | 1 |
| Axelrud-Cavadore, C; Coletti-Previero, MA; Previero, A | 1 |
| Seydel, H; Voigt, R | 1 |
| Cohen, HP; Lin, S | 1 |
| Trayhurn, P; van Heyningen, R | 1 |
| Baskerville, E; Twarog, R | 1 |
| Eick, HE; Kassell, B; Ward, PH | 1 |
| Menne, F | 1 |
| Ginsburg, A | 1 |
| Srinivasan, PR; Tamir, H | 1 |
| Benevenga, NJ; Harper, AE; Wohlhueter, RM | 1 |
| Haralambie, G; Keul, J | 1 |
| Deuel, TF; Stadtman, ER | 1 |
| Jensen, RA; Kane, JF | 1 |
| Dolif, D; Jürgens, P | 1 |
| Belser, WL; Hutchinson, MA; Robb, F | 1 |
| Edvinsson, L; Håkanson, R; Sundler, F | 1 |
| Fletcher, PL; Hash, JH | 1 |
| Hirayama, C | 1 |
| Buist, NR; Ferry, PC; Ramberg, DA; Strandholm, JJ | 1 |
| Asquith, RS; Rivett, DE | 1 |
| Schwarz, E | 1 |
| Endo, M; Ozeki, T; Pigman, W; Yosizawa, Z | 1 |
| DeMoss, RD; Griffiths, SK | 1 |
| Schenker, S; Walker, CO | 1 |
| Bhatt, K; D'Souza, L; Day, RA; Madaiah, M | 1 |
| DeMoss, RD; Hoch, JA; Roth, CW | 1 |
| Kerly, M; Spruyt, JE | 1 |
| Ellfolk, N | 1 |
| Demeyer, DI; Henderickx, HK | 1 |
| Boruchow, IB; Ludwig, GD; Wontorsky, D | 1 |
| Nanzyo, N; Sano, S | 1 |
| Brown, HH | 1 |
| Doi, Y; Funatsu, M; Hayashi, K; Imoto, T | 1 |
| Hirai, S; Mozai, T; Ogihara, K | 1 |
| Lea, PJ; Miflin, BJ; Wallsgrove, RM | 1 |
| Kamenich, W; Leimenstoll, A; Leimenstoll, G; Matthes, KJ; Moch, KJ | 1 |
| Jellinger, K; Kleinberger, G; Riederer, P; Weiser, M | 1 |
| Boschat, M; Delorme, ML; Denis, J; Nordlinger, B; Opolon, P | 1 |
| Pardridge, WM | 1 |
| Biebuyck, JF; Hawkins, RA; Mans, AM | 1 |
| Harrold, D; Rogers, QR; Strombeck, DR | 1 |
| Furukawa, T; Katsuki, T; Ono, J | 1 |
| Bachmann, C; Colombo, JP | 1 |
| Ballard, FJ; Murray, AJ; Tomas, FM | 1 |
| Horrocks, WD; Matthews, CR; Recchia, J; Rhee, MJ | 1 |
| Castorina-Ziparo, S; Fischer, JE; Freund, H; James, JH; Krause, R; Rossi-Fanelli, F; Smith, AR | 1 |
| Angiolini, A; Bianchi, FB; Dondi, C; Marchesini, G; Pisi, E; Zoli, M | 1 |
| Angiolini, A; Bianchi, FB; Cecchini, L; Dondi, C; Marchesini, G; Pisi, E; Zoli, M | 1 |
| Raaymakers, JS; Saris, WH; van Hall, G; Wagenmakers, AJ | 1 |
| Chance, WT; Fischer, JE; Thomas, I | 1 |
| Bengtsson, F; Bergqvist, PB; Bosman, DK; Chamuleau, RA; Hjorth, S; Maas, MA; Vogels, BA | 1 |
| Easter, RA; Trottier, NL | 1 |
| Seiler, N | 2 |
| Brooks, HB; Davidson, VL; Graichen, ME; Hyun, YL; Jones, LH | 1 |
| Easter, RA; Kerr, BJ | 1 |
| Batshaw, ML; Heyes, MP; Hopkins, K; McLaughlin, BA; Oster-Granite, ML; Robinson, MB | 1 |
| Ferrauti, A; Hollmann, W; Platen, P; Strüder, HK; Weber, K; Wöstmann, R | 1 |
| Davidson, VL; Zhu, Z | 1 |
| Bailey, SP; Mittleman, KD; Ricci, MR | 1 |
| Grips, E; Holm, E; Sedlaczek, O | 1 |
| Bahn, E; Hajak, G; Nolte, W; Pilz, J; Ramadori, G; Rüther, E; von Heppe, J; Wiltfang, J | 1 |
| Abele, C; Gohr, P; Grosse, W; Schröder, P; Stuhlfauth-Roisch, U | 1 |
| ALEXANDER, F; CROSLEY, AP; CURTIS, GC; SPRINCE, H | 1 |
| SCHENKER, S; WARREN, KS | 1 |
| BREUER, H; SCHREIBER, HW | 1 |
| LESTRADET, H | 1 |
| ANDERSON, RA; KIRKPATRICK, CH | 1 |
| NEWTON, WA; SNELL, EE | 1 |
| BARTOS, J | 1 |
| CRAIG, LC; KING, TP; RUTTENBERG, MA | 1 |
| IWASAKI, H; RAMACHANDRAN, LK; WITKOP, B | 1 |
| Al Mardini, H; Douglass, A; Record, CO | 1 |
| Chan, NK; Chew, SF; Hiong, KC; Ip, YK; Loong, AM; Tam, WL | 1 |
| Bachmann, C; Boulat, O; Braissant, O; Henry, H; Villard, AM | 1 |
| Baker, A; Inverarity, R; Ward, D | 1 |
| Dutta Gupta, A; Murthy, ChR; Reddanna, P; Reddy, PV; Roy, KR; Sathyasaikumar, KV; Senthilkumaran, B; Swapna, I | 1 |
| Dejong, CH; Jalan, R; Olde Damink, SW; Soeters, PB; van de Poll, MC | 1 |
| Dionne, IJ; Lorrain, D; Melancon, MO | 1 |
| Horiuchi, M; Kanesada, H; Kirisako, T; Kokubo, T; Miyata, T; Nishimura, A; Watanabe, K | 1 |
| Du, B; Han, F; Ju, L; Li, K; Li, M; Shi, L; Wang, B; Wang, X; Wang, Y; Wei, D; Wei, Q; Zhang, G | 1 |
| Aiyar, A; Sherchand, SP | 1 |
| Claeys, W; Geerts, A; Ghesquière, B; Lefere, S; Van Hoecke, L; Van Imschoot, G; Van Steenkiste, C; Van Vlierberghe, H; Van Wonterghem, E; Vandenbroucke, RE | 1 |
| Chen, YL; Chiu, HT; Lai, CC; Lee, MN; Lin, YC; Wang, MS | 1 |
| Chen, N; Cheng, LK; Shen, ZQ; Wang, J; Xie, XX; Xu, QY; Zhao, CG | 1 |
| Bai, F; Bai, G; Chen, N; Xu, Q | 1 |
19 review(s) available for tryptophan and ammonium hydroxide
| Article | Year |
|---|---|
[Hepatic coma and insufficiency].
Topics: Ammonia; Brain; Electrocardiography; Fatty Acids; Hepatic Encephalopathy; Hepatitis; Humans; Liver; Liver Diseases; Lysine; Methionine; Octopamine; Phenylalanine; Tryptophan | 1977 |
Hepatic encephalopathy: summary of present knowledge with an elaboration on recent developments.
Topics: Amino Acids; Ammonia; Animals; Brain Chemistry; Dogs; Hepatic Encephalopathy; Humans; Levodopa; Rats; Tryptophan | 1979 |
Effect of ammonium ions on synaptic transmission in the mammalian central nervous system.
Topics: Ammonia; Animals; Astrocytes; Brain; Calcium; Cell Communication; Central Nervous System; Coma; Excitatory Amino Acid Antagonists; Glutamates; Glutamic Acid; Humans; Hydrogen-Ion Concentration; Liver; Liver Diseases; Mammals; Membrane Potentials; Neurons; Neurotransmitter Agents; Quaternary Ammonium Compounds; Rabbits; Rats; Receptors, Neurotransmitter; Synaptic Transmission; Tryptophan | 1992 |
Role of nutrition in hepatic encephalopathy.
Topics: Ammonia; Diet; Diet Therapy; Dietary Proteins; Enteral Nutrition; Fatty Acids, Nonesterified; Hepatic Encephalopathy; Humans; Lactulose; Nutrition Disorders; Parenteral Nutrition; Tryptophan | 1991 |
Hepatic encephalopathy.
Topics: Ammonia; Animals; Blood-Brain Barrier; Brain; Demyelinating Diseases; Fatty Acids; Glutamine; Hepatic Encephalopathy; Humans; Hypernatremia; Hyponatremia; Ketoglutaric Acids; Lactulose; Methionine; Neomycin; Pons; Synaptic Transmission; Tryptophan | 1985 |
Urea cycle disorders, hyperammonemia and neurotransmitter changes.
Topics: Amino Acid Metabolism, Inborn Errors; Ammonia; Animals; Brain Chemistry; Rats; Serotonin; Tryptophan | 1987 |
[Metabolic anomaly and management of hepatic coma].
Topics: Adrenal Cortex Hormones; Ammonia; Catecholamines; Dihydroxyphenylalanine; Electrolytes; Exchange Transfusion, Whole Blood; Fatty Acids; Hepatic Encephalopathy; Humans; Hypokalemia; Immunization, Passive; Tryptophan | 1973 |
Fulminant viral hepatitis.
Topics: Acute Disease; Acute Kidney Injury; Amino Acids; Ammonia; Animals; Brain; Brain Diseases; Brain Edema; Cross Circulation; Female; Hemorrhagic Disorders; Heparin; Hepatic Encephalopathy; Hepatitis A; Humans; Levodopa; Liver Regeneration; Prothrombin Time; Swine; Tryptophan | 1974 |
[Feeble mindedness caused by genetic disorders of amino acid metabolism].
Topics: Amino Acid Metabolism, Inborn Errors; Ammonia; Arginine; Citrulline; Glycine; Hartnup Disease; Histidine; Homocystinuria; Humans; Hydroxyproline; Intellectual Disability; Lysine; Maple Syrup Urine Disease; Methionine; Phenylketonurias; Proline; Sarcosine; Succinates; Transferases; Tryptophan; Valine | 1968 |
Effects of ingestion of disproportionate amounts of amino acids.
Topics: Adaptation, Physiological; Age Factors; Amino Acids; Ammonia; Animals; Cystine; Deficiency Diseases; Feeding Behavior; Glycine; Growth Disorders; Histidine; Homeostasis; Humans; Leucine; Liver; Lysine; Methionine; Nicotinic Acids; Nutrition Disorders; Phenylalanine; Rats; Threonine; Tryptophan; Tyrosine | 1970 |
[Relation between protein metabolism and physical strain].
Topics: Adolescent; Ammonia; Animals; Blood Urea Nitrogen; Feeding Behavior; Female; Gluconeogenesis; Glycoproteins; Humans; Liver; Male; Muscles; Physical Exertion; Protein Biosynthesis; Proteins; Rats; Recreation; Sports Medicine; Stress, Physiological; Time Factors; Tryptophan; Tyrosine; Uric Acid | 1971 |
Glutamine metabolism in higher plants.
Topics: Ammonia; Anthranilate Synthase; Aspartate-Ammonia Ligase; Carbamoyl-Phosphate Synthase (Glutamine-Hydrolyzing); Chloroplasts; Glucosamine; Glutamate Synthase; Glutamate-Ammonia Ligase; Glutamine; Histidine; Isoenzymes; Nitrogen; Plants; Purines; Transaminases; Tryptophan | 1981 |
Brain metabolism: a perspective from the blood-brain barrier.
Topics: Amino Acids; Ammonia; Animals; Arginine; Biological Transport; Blood-Brain Barrier; Brain; Capillary Permeability; Carboxylic Acids; Deoxyglucose; Fatty Acids, Nonesterified; Glucose; Glycolysis; Humans; Ketone Bodies; Kinetics; Lactates; Models, Biological; Nerve Tissue Proteins; Protein Binding; Regression Analysis; Tryptophan | 1983 |
Treatment of hepatic coma with an L-valine supplement to full parenteral nutrition.
Topics: Ammonia; Brain; Hepatic Encephalopathy; Humans; Parenteral Nutrition; Tryptophan; Valine | 1981 |
Is ammonia a pathogenetic factor in Alzheimer's disease?
Topics: Alzheimer Disease; Ammonia; Amyloid beta-Protein Precursor; Brain; Humans; Tryptophan | 1993 |
An ammonia hypothesis of Alzheimer disease.
Topics: Alzheimer Disease; Ammonia; Astrocytes; Brain; Glucose; Humans; Neurotoxins; Synaptic Transmission; Tryptophan | 1997 |
Amino acid metabolism in liver disease.
Topics: Amino Acids; Amino Acids, Branched-Chain; Ammonia; Animals; Humans; Liver Diseases; Methionine; Nerve Growth Factors; Tryptophan; Urea | 1999 |
Ammonia toxicity to the brain and creatine.
Topics: Ammonia; Animals; Brain Chemistry; Creatine; Culture Media, Serum-Free; Glutamic Acid; Hyperammonemia; Plasma; Rats; Tryptophan | 2004 |
Aromatic amino acid metabolism during liver failure.
Topics: Amino Acids, Aromatic; Ammonia; Biological Transport; Humans; Liver Failure; Phenylalanine; Reference Values; Tryptophan; Tyrosine | 2007 |
5 trial(s) available for tryptophan and ammonium hydroxide
| Article | Year |
|---|---|
Ingestion of branched-chain amino acids and tryptophan during sustained exercise in man: failure to affect performance.
Topics: Adult; Amino Acids, Branched-Chain; Ammonia; Blood-Brain Barrier; Dietary Carbohydrates; Double-Blind Method; Exercise; Exercise Test; Humans; Kinetics; Male; Muscle Fatigue; Tryptophan | 1995 |
Effect of exercise intensity on free tryptophan to branched-chain amino acids ratio and plasma prolactin during endurance exercise.
Topics: Adult; Amino Acids, Branched-Chain; Ammonia; Blood Gas Analysis; Blood Glucose; Blood-Brain Barrier; Chromatography, High Pressure Liquid; Exercise; Exercise Test; Exercise Tolerance; Fatty Acids, Nonesterified; Heart Rate; Humans; Insulin; Male; Prolactin; Tryptophan | 1997 |
Branched-chain amino acids prolong exercise during heat stress in men and women.
Topics: Adolescent; Adult; Amino Acids, Branched-Chain; Ammonia; Blood Glucose; Dietary Supplements; Exercise; Exercise Test; Fatigue; Fatty Acids; Female; Heat Stress Disorders; Humans; Male; Physical Endurance; Sex Factors; Tryptophan | 1998 |
Oral tryptophan challenge studies in cirrhotic patients: no evidence of neuropsychiatric changes.
Topics: Aged; Ammonia; Electroencephalography; Female; Hepatic Encephalopathy; Humans; Liver Cirrhosis; Male; Middle Aged; Psychometrics; Psychomotor Performance; Reaction Time; Tryptophan | 2003 |
Ornithine ingestion improved sleep disturbances but was not associated with correction of blood tryptophan ratio in Japanese Antarctica expedition members during summer.
Topics: Adult; Ammonia; Antarctic Regions; Creatine Kinase; Double-Blind Method; Expeditions; Humans; Japan; L-Lactate Dehydrogenase; Ornithine; Seasons; Sleep; Sleep Wake Disorders; Surveys and Questionnaires; Tryptophan | 2013 |
110 other study(ies) available for tryptophan and ammonium hydroxide
| Article | Year |
|---|---|
Utilization of ammonia for tryptophan synthesis.
Topics: Ammonia; Anthranilate Synthase; Cell Division; Chromosome Mapping; Escherichia coli; Hydrogen-Ion Concentration; Molecular Weight; Mutation; Species Specificity; Tryptophan; Tryptophan Synthase | 1975 |
Effect of hypercapnia and hypocapnia on tryptophan and tyrosine hydroxylation in rat brain.
Topics: 5-Hydroxytryptophan; Amino Acids; Ammonia; Animals; Brain; Carbohydrate Metabolism; Carbon Dioxide; Dihydroxyphenylalanine; Hydrazines; Hydrogen-Ion Concentration; Hydroxylation; Hypercapnia; Male; Partial Pressure; Phosphates; Rats; Rats, Inbred Strains; Tryptophan; Tyrosine | 1977 |
The cellular role of nitrogen in the biosynthesis of alkaloids by submerged culture of Claviceps purpurea (Fr.) Tul.
Topics: Amino Acids; Ammonia; Asparaginase; Asparagine; Aspartate-Ammonia Ligase; Aspartic Acid; Claviceps; Ergot Alkaloids; Fermentation; Glutamate Dehydrogenase; Glutamate Synthase; Nitrogen; Quaternary Ammonium Compounds; Tryptophan | 1977 |
Hyperammonaemia, plasma aminoacid imbalance, and blood-brain aminoacid transport: a unified theory of portal-systemic encephalopathy.
Topics: Amino Acids, Branched-Chain; Ammonia; Animals; Biological Transport; Blood-Brain Barrier; Brain; Dogs; Glucagon; Glutamine; Haplorhini; Hepatic Encephalopathy; Humans; Insulin; Liver Cirrhosis; Phenylalanine; Portacaval Shunt, Surgical; Rats; Tryptophan; Tyrosine | 1979 |
Inhibition of tryptophan uptake in Aspergillus fumigatus by tryptamine.
Topics: Ammonia; Aspergillus fumigatus; Biological Transport, Active; Citrates; Feedback; Kinetics; Tryptamines; Tryptophan | 1977 |
Increased blood-brain transport of neutral amino acids after portacaval anastomosis in germfree rats.
Topics: Amino Acids; Amino Acids, Branched-Chain; Ammonia; Animals; Biological Transport; Blood-Brain Barrier; Brain; Germ-Free Life; Portacaval Shunt, Surgical; Rats; Tryptophan | 1979 |
[Therapeutic effectiveness of pyridoxine pyrrolidonecarboxylate in febrile convulsions in children].
Topics: Ammonia; Child, Preschool; Drug Evaluation; Female; Humans; Infant; Isonicotinic Acids; Male; Pyridoxal Phosphate; Pyridoxic Acid; Pyrrolidinones; Seizures; Seizures, Febrile; Tryptophan; Vitamin B 6 Deficiency | 1977 |
The role of plasma amino acids in hepatic encephalopathy.
Topics: Albumins; Amino Acids; Ammonia; Animals; Arginine; Blood Urea Nitrogen; Dogs; Glucose; Glutamates; Hepatic Encephalopathy; Isoleucine; Leucine; Liver Function Tests; Methionine; Parenteral Nutrition; Phenylalanine; Portacaval Shunt, Surgical; Threonine; Tryptophan; Tyrosine; Valine | 1975 |
[New evaluation of effect of total colectomy and intestinal sterilization following portacaval shunt].
Topics: Ammonia; Animals; Brain Chemistry; Colectomy; Disinfection; Enterobacteriaceae; Intestines; Kanamycin; Octopamine; Portacaval Shunt, Surgical; Rats; Tryptophan | 1975 |
Possible effect of blood ammonia on food intake of rats fed amino acid imbalanced diets.
Topics: Amino Acids; Ammonia; Animal Nutritional Physiological Phenomena; Animals; Arginine; Aspartic Acid; Body Weight; Citrulline; Histidine; Ligases; Liver; Male; Nutrition Disorders; Perfusion; Protein Deficiency; Quaternary Ammonium Compounds; Rats; Structure-Activity Relationship; Succinates; Tryptophan | 1975 |
[Influence of ammonia gas on indices of protein metabolism in broilers].
Topics: Alanine Transaminase; Amino Acids; Ammonia; Animals; Aspartate Aminotransferases; Blood Proteins; Chickens; Liver; Myocardium; Proteins; Transaminases; Tryptophan | 1975 |
Characterization of pig pancreatic kallikreins A and B.
Topics: Amino Acids; Ammonia; Animals; Catalysis; Electrophoresis; Glucosamine; Hexoses; Kallikreins; Methionine; Methylglycosides; Molecular Weight; Sialic Acids; Spectrophotometry, Ultraviolet; Swine; Tryptophan | 1975 |
Abomasal protein recovery and microbial protein synthesis in wethers fed high and low quality forage diets.
Topics: Abomasum; Amino Acids, Essential; Ammonia; Animal Feed; Animals; Dietary Proteins; Male; Poaceae; Protein Biosynthesis; Rumen; Sheep; Tryptophan | 1976 |
A method for determining amino acid concentrations and specific activities of amino acids and some other compounds in biological fluids.
Topics: Amino Acids; Ammonia; Animals; Arteries; Carbon Radioisotopes; Chromatography; Dogs; Glucose; Methods; Tritium; Tryptophan; Ultracentrifugation; Ultrafiltration; Veins | 1976 |
Quinolinate in brain and cerebrospinal fluid in rat models of congenital hyperammonemia.
Topics: Acetates; Ammonia; Animals; Brain; Disease Models, Animal; Hydroxyindoleacetic Acid; Male; Metabolism, Inborn Errors; Quinolinic Acid; Rats; Rats, Sprague-Dawley; Tryptophan; Urease | 1992 |
New enzymatic method with tryptophanase for determining potassium in serum.
Topics: Ammonia; Escherichia coli; Glutamate Dehydrogenase; Humans; Indoleamine-Pyrrole 2,3,-Dioxygenase; Ketoglutaric Acids; NADP; Potassium; Pyridoxal Phosphate; Tryptophan; Tryptophanase | 1992 |
Hyperammonaemia does not impair brain function in the absence of net glutamine synthesis.
Topics: Amino Acids; Ammonia; Animals; Biological Transport; Brain; Dose-Response Relationship, Drug; Energy Metabolism; Glucose; Glutamine; Male; Methionine Sulfoximine; Phosphates; Rats; Time Factors; Tryptophan | 1991 |
Characterization of the tryptophan-derived quinone cofactor of methylamine dehydrogenase by resonance Raman spectroscopy.
Topics: Ammonia; Deuterium; Hydroxides; Methylamines; Motion; Oxidation-Reduction; Oxidoreductases Acting on CH-NH Group Donors; Paracoccus denitrificans; Quinones; Spectrum Analysis; Spectrum Analysis, Raman; Thiobacillus; Tryptophan | 1991 |
Septic encephalopathy. Evidence for altered phenylalanine metabolism and comparison with hepatic encephalopathy.
Topics: Ammonia; Bacterial Infections; Brain Diseases, Metabolic; Glutamine; Hepatic Encephalopathy; Humans; Phenylacetates; Phenylalanine; Tryptophan; Tyrosine | 1990 |
[Studies of the effect of a protein-free diet and branched-chain amino acids (preparation Aminosteril-Hepa) on selected biochemical indicators in chronic experimental hepatic encephalopathy].
Topics: Amino Acids; Amino Acids, Branched-Chain; Ammonia; Animals; Chronic Disease; Dietary Proteins; Hepatic Encephalopathy; Male; Parenteral Nutrition; Phenols; Phenylalanine; Rats; Rats, Inbred Strains; Thioacetamide; Tryptophan; Tyrosine | 1989 |
Complementation of a trpE deletion in Escherichia coli by Spirochaeta aurantia DNA encoding anthranilate synthetase component I activity.
Topics: Ammonia; Anthranilate Synthase; Cloning, Molecular; DNA Transposable Elements; Escherichia coli; Genes, Bacterial; Genetic Complementation Test; Glutamine; Mutation; Spirochaeta; Transformation, Bacterial; Tryptophan | 1987 |
[The use of LCT- and MCT-containing fat emulsions in liver cirrhosis].
Topics: Ammonia; Blood Glucose; Electroencephalography; Fat Emulsions, Intravenous; Fatty Acids, Nonesterified; Humans; Ketone Bodies; Lactates; Liver Cirrhosis; Parenteral Nutrition, Total; Pyruvates; Triglycerides; Tryptophan | 1988 |
Reduction of cerebral blood flow in subclinical hepatic encephalopathy and its correlation with plasma-free tryptophan.
Topics: Adult; Aged; Ammonia; Blood Flow Velocity; Cerebrovascular Circulation; Electroencephalography; Female; Hepatic Encephalopathy; Humans; Male; Middle Aged; Tryptophan; Xenon Radioisotopes | 1987 |
Stimulation of tryptophan uptake into brain microvessels by D-glutamine.
Topics: Ammonia; Animals; Blood-Brain Barrier; Brain; Glutamine; Microcirculation; Stereoisomerism; Swine; Tryptophan | 1986 |
Cerebrospinal fluid gamma-aminobutyric acid levels in dogs with chronic portosystemic encephalopathy.
Topics: Ammonia; Animals; Dogs; gamma-Aminobutyric Acid; Hepatic Encephalopathy; Tryptophan | 1986 |
Regulation of glutamine synthetase from Bacillus subtilis by divalent cations, feedback inhibitors, and L-glutamine.
Topics: Adenosine Monophosphate; Adenosine Triphosphate; Alanine; Ammonia; Bacillus subtilis; Feedback; Glutamate-Ammonia Ligase; Glutamates; Glutamine; Glycine; Histidine; Kinetics; Magnesium; Manganese; Tryptophan | 1974 |
Glutamine synthetase as a regulator of enzyme synthesis.
Topics: Ammonia; Chromosome Mapping; Enzyme Activation; Enzyme Repression; Galactosidases; Genes; Glutamate Dehydrogenase; Glutamate-Ammonia Ligase; Glutamates; Glutamine; Histidine; Histidine Ammonia-Lyase; Klebsiella; Membrane Transport Proteins; Mutation; Tryptophan | 1974 |
Pattern formation in the blue-green alga Anabaena. II. Controlled proheterocyst regression.
Topics: Ammonia; Aza Compounds; Cell Differentiation; Cell Membrane; Cyanobacteria; Microscopy, Electron; Models, Biological; Probability; Tryptophan | 1973 |
[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 anthranilate synthetase-anthranilate 5-phosphoribosylpyrophosphate phosphoribosyltransferase aggregate. Catalytic and regulatory properties of aggregated and unaggregated forms of anthranilate 5-phosphoribosylpyrophosphate phosphoribosyltransferase.
Topics: Ammonia; Binding Sites; Cyclohexanecarboxylic Acids; Diphosphates; Electrophoresis, Disc; Feedback; Hydrogen-Ion Concentration; Kinetics; Ligases; Magnesium; Molecular Weight; ortho-Aminobenzoates; Pentosephosphates; Peptides; Phosphates; Phosphoric Acids; Phosphorus Isotopes; Salmonella typhimurium; Transaminases; Transferases; Tryptophan | 1970 |
The anthranilate synthetase-anthranilate 5-phosphoribosylpyrophosphate phosphoribosyltransferase aggregate. Purification of the aggregate and regulatory properties of anthranilate synthetase.
Topics: Ammonia; Binding Sites; Centrifugation, Density Gradient; Cyclohexanecarboxylic Acids; Electrophoresis; Feedback; Glutamine; Hydrogen-Ion Concentration; Ligases; Magnesium; Methods; Molecular Weight; ortho-Aminobenzoates; Pentosephosphates; Phosphoric Acids; Salmonella typhimurium; Transaminases; Transferases; Tryptophan | 1970 |
Amino acids and cerebral excitability.
Topics: Amino Acids; Ammonia; Animals; Brain; Central Nervous System Stimulants; Diet; Glutamates; Glutamine; Glycine; Leucine; Lysine; Male; Methionine; Phenylalanine; Rats; Seizures; Serine; Stimulation, Chemical; Time Factors; Tryptophan; Valine | 1969 |
[Amino acid levels in the blood serum of patients with chronic colitis].
Topics: Adult; Alanine; Amino Acids; Ammonia; Arginine; Aspartic Acid; Betaine; Chronic Disease; Citrulline; Colitis; Glutamates; Glutamine; Glycine; Histidine; Humans; Middle Aged; Ornithine; Phenylalanine; Proline; Serine; Taurine; Threonine; Tryptophan; Tyrosine; Urea | 1974 |
Reversibility of the tryptophanase reaction: synthesis of tryptophan from indole, pyruvate, and ammonia.
Topics: Acrylates; Ammonia; Ammonium Chloride; Biodegradation, Environmental; Catalysis; Escherichia coli; Hydro-Lyases; Hydrogen-Ion Concentration; Indoles; Kinetics; Osmolar Concentration; Potassium Chloride; Pyridoxal Phosphate; Pyruvates; Time Factors; Tryptophan | 1972 |
Hepatic encephalopathy.
Topics: Acetaminophen; Ammonia; Animals; Brain; Brain Edema; Diet Therapy; Dopamine; Female; Humans; Lactulose; Liver Diseases; Liver Transplantation; Male; Neomycin; Nervous System Diseases; Parabiosis; Renal Dialysis; Serotonin; Suicide; Swine; Tryptophan | 1973 |
Protein metabolism in renal failure.
Topics: Amino Acids, Essential; Ammonia; Arginine; Blood Urea Nitrogen; Diet; Dietary Carbohydrates; Dietary Fats; Dietary Proteins; Eggs; Hemoglobins; Histidine; Humans; Intestinal Absorption; Kidney Failure, Chronic; Kidney Transplantation; Nitrogen Isotopes; Nutritional Requirements; Phenylalanine; Renal Dialysis; Transplantation, Homologous; Tryptophan; Urea; Valine | 1973 |
Localization of two functions of the phosphoribosyl anthranilate transferase of Escherichia coli to distinct regions of the polypeptide chain.
Topics: Ammonia; Anthranilate Synthase; Cell-Free System; Chromosome Mapping; Escherichia coli; Genes; Glutamine; Multienzyme Complexes; Mutation; ortho-Aminobenzoates; Pentosyltransferases; Recombination, Genetic; Transaminases; Transduction, Genetic; Tryptophan; Tryptophan Synthase | 1974 |
Hyperalimentation in cirrhotic patients.
Topics: Acid-Base Equilibrium; Acidosis; Alanine Transaminase; Alkaline Phosphatase; Amino Acids; Ammonia; Arginine; Carbon Dioxide; Caseins; Catheterization; Cysteine; Diet Therapy; Fibrin; Glutamine; Glycine; Histidine; Humans; Isoleucine; Leucine; Liver; Liver Cirrhosis; Lysine; Methionine; Parenteral Nutrition; Phenylalanine; Potassium; Sodium; Threonine; Tryptophan | 1972 |
Methyl-1-methyl-3,4-dihydro- -carboline-3-carboxylate as a new chromogenic substrate for -chymotrypsin.
Topics: Acetylation; Amides; Ammonia; Carboxylic Acids; Chemical Phenomena; Chemistry; Chymotrypsin; Esters; Hydrogen-Ion Concentration; Hydrolysis; Indoles; Methanol; Pyridines; Spectrophotometry, Ultraviolet; Stereoisomerism; Structure-Activity Relationship; Tryptophan | 1972 |
[Stability of amino acid infusion solutions. 1. Stability of some amino acids in solutions].
Topics: Amino Acids; Ammonia; Arginine; Chromatography, Paper; Drug Stability; Glycine; Histidine; Hydrogen-Ion Concentration; Injections, Intravenous; Isoleucine; Leucine; Lysine; Methionine; Phenylalanine; Photometry; Solutions; Sorbitol; Spectrophotometry, Ultraviolet; Sterilization; Threonine; Tryptophan; Valine | 1972 |
Crayfish ventral nerve cord and hemolymph: content of free amino acids and other metabolites.
Topics: Amino Acids; Aminobutyrates; Ammonia; Animals; Asparagine; Astacoidea; Chromatography, Ion Exchange; Citrulline; Female; Glucose; Glutamates; Glutamine; Hemolymph; In Vitro Techniques; Male; Neurons; Sex Factors; Tryptophan; Urea | 1973 |
The metabolism of amino acids in the bovine lens. Their oxidation as a source of energy.
Topics: Adenosine Triphosphate; Alanine; Amino Acids; Ammonia; Animals; Aspartic Acid; Carbon Dioxide; Carbon Radioisotopes; Cattle; Collagen; Energy Metabolism; Glucose; Glutamates; Glutathione; In Vitro Techniques; Lactates; Lens, Crystalline; Leucine; Lipid Metabolism; Lysine; Oxidation-Reduction; Proline; Serine; Taurine; Tryptophan; Tyrosine | 1973 |
Regulation of a ligand-mediated association-dissociation system of anthranilate synthesis in Clostridium butyricum.
Topics: Ammonia; Anthranilate Synthase; Bacterial Proteins; Carbon Radioisotopes; Cell-Free System; Chromatography, Gel; Clostridium; Enzyme Repression; Feedback; Glutamine; Hydrogen-Ion Concentration; Leucine; Molecular Weight; Multienzyme Complexes; Mutation; ortho-Aminobenzoates; Tritium; Tryptophan; Tryptophan Synthase | 1974 |
A modified amino acid analyzer with greater versatility.
Topics: Amino Acids; Ammonia; Autoanalysis; Buffers; Chromatography, Ion Exchange; Colorimetry; Costs and Cost Analysis; Evaluation Studies as Topic; Hydrogen-Ion Concentration; Methods; Temperature; Time Factors; Tryptophan | 1974 |
Conformational changes in glutamine synthetase from Escherichia coli. II. Some characteristics of the equilibrium binding of feedback inhibitors to the enzyme.
Topics: Adenine Nucleotides; Alanine; Ammonia; Binding Sites; Carbon Isotopes; Chemical Phenomena; Chemistry; Dialysis; Escherichia coli; Feedback; Glutamine; Kinetics; Ligases; Magnesium; Manganese; Phosphorus Isotopes; Protein Binding; Thermodynamics; Tryptophan | 1969 |
Purification and properties of anthranilate synthase from Salmonella typhimurium.
Topics: Ammonia; Azaserine; Centrifugation, Density Gradient; Chemical Phenomena; Chemistry; Chromatography, DEAE-Cellulose; Chromatography, Gel; Culture Media; Cyclohexanecarboxylic Acids; Drug Stability; Electrophoresis; Feedback; Glutamine; Hydrogen-Ion Concentration; Kinetics; Mercury; Methods; Molecular Weight; ortho-Aminobenzoates; Quaternary Ammonium Compounds; Salmonella typhimurium; Solubility; Transaminases; Tryptophan | 1969 |
Some kinetic properties of Bacillus subtilis glutamine synthetase.
Topics: Adenine Nucleotides; Adenosine Triphosphate; Alanine; Ammonia; Bacillus subtilis; Cytosine Nucleotides; Drug Synergism; Enzyme Activation; Escherichia coli; Feedback; Glutamates; Glutamine; Glycine; Histidine; Hydrogen-Ion Concentration; Iron; Kinetics; Ligases; Magnesium; Manganese; Temperature; Tryptophan | 1970 |
The molecular aggregation of anthranilate synthase in Bacillus subtilis.
Topics: Ammonia; Bacillus subtilis; Chromatography, Gel; Chromosomes; Cyclohexanecarboxylic Acids; Depression, Chemical; Enzyme Repression; Genes; Glutamine; Molecular Weight; Mutation; ortho-Aminobenzoates; Pentosephosphates; Transaminases; Transferases; Tryptophan | 1970 |
[Nitrogen metabolism in parenteral feeding].
Topics: Adult; Aged; Alanine; Amino Acids; Ammonia; Creatinine; Diet Therapy; Duodenal Ulcer; Female; Glycine; Humans; Male; Methionine; Middle Aged; Nitrogen; Parenteral Nutrition; Proline; Serine; Stomach Ulcer; Tryptophan; Urea | 1971 |
Anthranilate synthetase. Some physical and kinetic properties of the enzyme from Serratia marcescens.
Topics: Ammonia; Animals; Antigens; Centrifugation, Density Gradient; Chloromercuribenzoates; Chromatography, Gel; Cyclohexanecarboxylic Acids; Drug Synergism; Electrophoresis, Disc; Feedback; Glutaminase; Glutamine; Hydrogen-Ion Concentration; Immune Sera; Immunodiffusion; Isoelectric Focusing; Kinetics; Molecular Weight; ortho-Aminobenzoates; Quaternary Ammonium Compounds; Rabbits; Serratia marcescens; Time Factors; Transaminases; Tryptophan | 1971 |
Separation of tryptophyl-peptides by thin-layer chromatography and microspectrofluorometric characterization of their formaldehyde-induced fluorophores.
Topics: Ammonia; Chromatography, Thin Layer; Ethanol; Fluorescence; Formaldehyde; Hydrochloric Acid; Indicators and Reagents; Methods; Peptides; Spectrometry, Fluorescence; Tryptophan | 1972 |
Ribonuclease of Chalaropsis species. II. Chemical properties.
Topics: Alanine; Alkylation; Amides; Amino Acid Sequence; Amino Acids; Ammonia; Aspergillus; Autoanalysis; Carbon Isotopes; Computers; Disulfides; Formates; Glycine; Iodoacetates; Mitosporic Fungi; Oxidation-Reduction; Peptides; Ribonucleases; Species Specificity; Thiocyanates; Tryptophan | 1972 |
Tryptophan metabolism in liver disease.
Topics: Adult; Aged; Amino Acids; Ammonia; Brain Diseases; Chronic Disease; Diabetes Complications; Diabetes Mellitus; Fasting; Female; Hepatic Encephalopathy; Hepatitis; Humans; Liver Cirrhosis; Liver Function Tests; Male; Methenolone; Middle Aged; Peptic Ulcer; Prednisolone; Syphilis; Tolbutamide; Tryptophan | 1971 |
Copper poppers: a benign cause of blue diapers.
Topics: Amino Acid Metabolism, Inborn Errors; Ammonia; Clothing; Color; Copper; Female; Humans; Infant; Malabsorption Syndromes; Tryptophan | 1971 |
Studies on the photooxidation of tryptophan.
Topics: Amino Acids; Ammonia; Aspartic Acid; Chromatography, Thin Layer; Electrophoresis, Paper; Formates; Hydrochloric Acid; Kinetics; Kynurenine; Light; Models, Structural; Nitrogen; Oxygen; Photolysis; Quinazolines; Radiation Effects; Tryptophan; Water | 1971 |
[Free amino acids and related compounds in the scrapable horny layer of uninvolved skin in microbial eczema and subjects without skin disease].
Topics: Adolescent; Adult; Aged; Amino Acids; Ammonia; Binding Sites; Chromatography; Chromatography, Paper; Eczema; Epithelium; Female; Glutamates; Histidine; Humans; Isoleucine; Male; Middle Aged; Nitrogen; Skin; Tryptophan; Urea | 1971 |
Analysis of submaxillary mucins for amide and tryptophan contents.
Topics: Amides; Ammonia; Animals; Aspartic Acid; Cattle; Glutamates; Hydrogen-Ion Concentration; Mucins; Neuraminic Acids; Sheep; Species Specificity; Submandibular Gland; Swine; Time Factors; Tryptophan | 1969 |
Physiological comparison of L-serine dehydratase and tryptophanase from Bacillus alvei.
Topics: Ammonia; Bacillus; Buffers; Carboxy-Lyases; Culture Media; Glucose; Glycerol; Hydro-Lyases; Hydrogen-Ion Concentration; Indicators and Reagents; Indoles; L-Serine Dehydratase; Phosphates; Potassium; Pyruvates; Serine; Sodium; Spectrophotometry; Toluene; Tryptophan | 1970 |
Pathogenesis of hepatic encephalopathy--with special reference to the role of ammonia.
Topics: Adenosine Triphosphate; Amino Acids; Ammonia; Animals; Brain; Electroencephalography; Fatty Acids; Glutamates; Glutamine; Hepatic Encephalopathy; Humans; Imines; Ketoglutaric Acids; Methionine; Oxygen Consumption; Phosphocreatine; Tryptophan | 1970 |
Photolysis of dansyl amino acids and dansyl peptides.
Topics: Amino Acids; Ammonia; Hydrogen-Ion Concentration; Light; Naphthalenes; Peptides; Photochemistry; Radiation Effects; Sulfonamides; Sulfonic Acids; Tryptophan | 1970 |
Physiological studies of biosynthetic indole excretion in Bacillus alvei.
Topics: Acrylates; Amino Acids; Ammonia; Autoanalysis; Bacillus; Caseins; Cell-Free System; Colorimetry; Culture Media; Genetics, Microbial; Hydro-Lyases; Indicators and Reagents; Indoles; L-Serine Dehydratase; Models, Theoretical; Mutation; ortho-Aminobenzoates; Serine; Spectrophotometry; Stereoisomerism; Threonine; Tryptophan | 1971 |
Amino acid metabolism in the isolated perfused rat liver.
Topics: Alanine; Amino Acids; Ammonia; Animals; Aspartic Acid; Chromatography; Glutamates; Glycine; In Vitro Techniques; Liver; Lysine; Male; Methionine; Nitrogen Isotopes; Perfusion; Phenylalanine; Proline; Rats; Serine; Threonine; Tryptophan; Tyrosine; Urea | 1971 |
Cytochrome c peroxidase. 3. The amino acid composition of cytochrome c peroxidase of Baker's yeast.
Topics: Amino Acids; Ammonia; Chemical Phenomena; Chemistry; Cysteine; Cytochromes; Lysine; Molecular Weight; Peroxidases; Saccharomyces; Tryptophan; Tyrosine | 1967 |
Ammonia production by rumen microbes in vitro.
Topics: Alanine; Amino Acids; Ammonia; Animals; Arginine; Asparagine; Aspartic Acid; Cysteine; Glutamates; Glutamine; Glycine; Histidine; Hydrogen-Ion Concentration; Isoleucine; Leucine; Lysine; Methionine; Phenylalanine; Proline; Rumen; Serine; Threonine; Tryptophan; Tyrosine; Valine | 1967 |
Potentiation of endotoxin shock by oral L-tryptophan.
Topics: Ammonia; Animals; Chromatography, Paper; Dogs; Endotoxins; Glucuronates; Hydrocortisone; Indoles; Kynurenic Acid; Kynurenine; Neomycin; ortho-Aminobenzoates; Portal Vein; Serotonin; Shock, Septic; Tryptophan | 1968 |
Type c ferri- and ferrohemochrome formation between hemin c, amino acids, and peptides.
Topics: Amino Acids; Ammonia; Arginine; Cytochromes; Detergents; Glycine; Heme; Histidine; Hydrogen-Ion Concentration; Imidazoles; Indoles; Iron; Lysine; Methionine; Peptides; Pigments, Biological; Porphyrins; Protein Binding; Spectrophotometry; Sulfur; Tryptophan | 1968 |
A study of 2,4,6-trinitrobenzenesulfonic acid for automated amino acid chromatography.
Topics: Alanine; Amino Acids; Ammonia; Arginine; Aspartic Acid; Autoanalysis; Chromatography; Cystine; Glycine; Histidine; Hydrogen-Ion Concentration; Indicators and Reagents; Isoleucine; Leucine; Lysine; Methionine; Methods; Nitrobenzenes; Phenylalanine; Proline; Serine; Spectrophotometry; Sulfonic Acids; Temperature; Threonine; Tryptophan; Tyrosine; Urea; Valine | 1968 |
Characterization of enzyme-substract complex of lysozyme. II. Effects of pH and salts.
Topics: Ammonia; Barium; Bromine; Calcium; Chitin; Chlorine; Chromatography; Hydrogen-Ion Concentration; Iodine; Ions; Lithium; Magnesium; Muramidase; Nitrites; Optical Rotatory Dispersion; Oxidation-Reduction; Sodium; Sodium Chloride; Spectrophotometry; Sulfuric Acids; Tryptophan | 1969 |
Tryptophan as cause of hepatic coma.
Topics: Ammonia; Animals; Dogs; Hepatic Encephalopathy; Male; Serotonin; Tryptophan | 1966 |
[Problems of protein supply in patients with liver cirrhosis].
Topics: Ammonia; Hepatic Encephalopathy; Humans; Liver Cirrhosis; Methionine; Neurotransmitter Agents; Parenteral Nutrition; Phenylalanine; Proteins; Tryptophan; Tyrosine; Urea | 1982 |
Oral and parenteral nutrition with L-Valine: mode of action.
Topics: Aged; Ammonia; Brain; Female; Hepatic Encephalopathy; Humans; Hydroxyindoleacetic Acid; Male; Middle Aged; Parenteral Nutrition; Serotonin; Tryptophan; Valine | 1980 |
Relationship between plasma and brain tryptophan in pigs during experimental hepatic coma before and after hemodialysis with selective membranes.
Topics: Acrylic Resins; Acrylonitrile; Amino Acids; Ammonia; Animals; Brain; Cellulose; Copper; Hepatic Encephalopathy; Hydroxyindoleacetic Acid; Membranes, Artificial; Molecular Weight; Renal Dialysis; Serotonin; Swine; Tryptophan | 1981 |
Ammonia selectively stimulates neutral amino acid transport across blood-brain barrier.
Topics: Amino Acids; Ammonia; Animals; Blood-Brain Barrier; Brain; Carbon Radioisotopes; Kinetics; Lysine; Male; Rats; Tritium; Tryptophan | 1983 |
Effects of catecholamines and ammonia on plasma and brain amino acids in dogs.
Topics: Amino Acids; Ammonia; Animals; Brain; Dogs; Drug Interactions; Epinephrine; Kinetics; Male; Norepinephrine; Organ Specificity; Tryptophan | 1984 |
[Changes in serotonin and histamine levels in blood and liver after acute hepatic ischemia].
Topics: Acute Disease; Amino Acids; Ammonia; Animals; Dogs; Histamine; Ischemia; Liver; Liver Diseases; Microcirculation; Serotonin; Tryptophan | 1984 |
Increased tryptophan uptake into the brain in hyperammonemia.
Topics: Amino Acids; Ammonia; Animals; Brain; Brain Stem; Disease Models, Animal; Indoles; Male; Probenecid; Rats; Rats, Inbred Strains; Tryptophan; Urease | 1983 |
A rapid method for the analysis of N tau-methylhistidine in human urine.
Topics: Acetonitriles; Ammonia; Autoanalysis; Chromatography, Ion Exchange; Fluorescamine; Formaldehyde; Glutaral; Histamine; Histidine; Humans; Methylhistidines; Solvents; Spiro Compounds; Tryptophan | 1981 |
Interresidue distance measurements in proteins. Fluorescent energy transfer between tryptophans and a Ru(III)(NH3)5-histidine complex in alpha-lytic protease and lysozyme.
Topics: Ammonia; Endopeptidases; Energy Transfer; Histidine; Kinetics; Muramidase; Myxococcales; Protein Binding; Protein Conformation; Ruthenium; Serine Endopeptidases; Spectrometry, Fluorescence; Tryptophan; X-Ray Diffraction | 1982 |
Induction of coma in normal dogs by the infusion of aromatic amino acids and its prevention by the addition of branched-chain amino acids.
Topics: Amino Acids, Branched-Chain; Ammonia; Animals; Biological Transport; Blood-Brain Barrier; Brain; Coma; Dogs; Hepatic Encephalopathy; Phenylalanine; Tryptophan | 1982 |
Plasma amino acids as markers of liver dysfunction in cirrhotics.
Topics: Adult; Aged; Amino Acids; Ammonia; Female; Galactose; Humans; Liver; Liver Cirrhosis; Liver Function Tests; Male; Methionine; Middle Aged; Phenylalanine; Tryptophan; Tyrosine | 1981 |
Prevalence of subclinical hepatic encephalopathy in cirrhotics and relationship to plasma amino acid imbalance.
Topics: Adult; Aged; Amino Acids; Amino Acids, Branched-Chain; Ammonia; Blood-Brain Barrier; Female; Hepatic Encephalopathy; Humans; Liver Cirrhosis; Male; Middle Aged; Phenylalanine; Trail Making Test; Tryptophan; Tyrosine | 1980 |
Hepatic encephalopathy: a unifying hypothesis.
Topics: Ammonia; Glutamine; Hepatic Encephalopathy; Humans; Tryptophan | 1980 |
Insulin reverses ammonia-induced anorexia and experimental cancer anorexia.
Topics: Ammonia; Animals; Anorexia; Blood Glucose; Dopamine; Eating; Glucagon; Hydroxyindoleacetic Acid; Hypothalamus; Insulin; Lactates; Lactic Acid; Male; Neoplasms, Experimental; Rats; Rats, Inbred F344; Serotonin; Tryptophan; Tyrosine | 1994 |
Neocortical dialysate monoamines of rats after acute, subacute, and chronic liver shunt.
Topics: 3,4-Dihydroxyphenylacetic Acid; Acute Disease; Amino Acids; Ammonia; Animals; Biogenic Monoamines; Body Weight; Cerebral Cortex; Chronic Disease; Dialysis; Disease Models, Animal; Dopamine; Extracellular Space; Hepatic Encephalopathy; Hydroxyindoleacetic Acid; Male; Norepinephrine; Phenylalanine; Rats; Rats, Wistar; Serotonin; Tryptophan; Tyrosine | 1995 |
Dietary and plasma branched-chain amino acids in relation to tryptophan: effect on voluntary feed intake and lactation metabolism in the primiparous sow.
Topics: Amino Acids, Branched-Chain; Ammonia; Animals; Blood Glucose; Blood Urea Nitrogen; Body Weight; Crosses, Genetic; Diet; Eating; Fatty Acids, Nonesterified; Female; Lactation; Litter Size; Postpartum Period; Pregnancy; Pregnancy, Animal; Random Allocation; Swine; Tryptophan | 1995 |
Detection of intermediates in tryptophan tryptophylquinone enzymes.
Topics: Alcaligenes; Ammonia; Bacteria; Dithionite; Indolequinones; Kinetics; Molecular Structure; Oxidation-Reduction; Oxidoreductases Acting on CH-NH Group Donors; Quinones; Spectrophotometry; Tryptophan | 1995 |
Effect of feeding reduced protein, amino acid-supplemented diets on nitrogen and energy balance in grower pigs.
Topics: Amino Acids; Ammonia; Animals; Blood Urea Nitrogen; Diet, Protein-Restricted; Energy Metabolism; Food, Fortified; Lysine; Male; Nitrogen; Random Allocation; Swine; Threonine; Tryptophan; Urea | 1995 |
Evidence of excitotoxicity in the brain of the ornithine carbamoyltransferase deficient sparse fur mouse.
Topics: Ammonia; Animals; Brain Damage, Chronic; Disease Models, Animal; Glutamine; Hair; Metabolism, Inborn Errors; Mice; Mice, Inbred Strains; Ornithine Carbamoyltransferase; Ornithine Carbamoyltransferase Deficiency Disease; Quinolinic Acid; Tryptophan | 1995 |
Kinetic and chemical mechanisms for the effects of univalent cations on the spectral properties of aromatic amine dehydrogenase.
Topics: Alcaligenes; Ammonia; Cations, Monovalent; Hydrogen-Ion Concentration; Indolequinones; Kinetics; Metals, Alkali; Molecular Structure; Oxidoreductases Acting on CH-NH Group Donors; Potassium; Protein Binding; Quinones; Sodium; Spectrophotometry; Tryptophan | 1998 |
Sleep disorders and portal-systemic encephalopathy following transjugular intrahepatic portosystemic stent shunt in patients with liver cirrhosis. Relation to plasma tryptophan.
Topics: Adult; Aged; Aged, 80 and over; Ammonia; Female; Follow-Up Studies; Hepatic Encephalopathy; Humans; Hypertension, Portal; Liver Cirrhosis; Male; Middle Aged; Portasystemic Shunt, Transjugular Intrahepatic; Sleep Wake Disorders; Stents; Time Factors; Tryptophan | 1999 |
Latest on enzymology of serotonin biosynthesis in walnut seeds.
Topics: Ammonia; Aromatic-L-Amino-Acid Decarboxylases; Cotyledon; Cytochrome P-450 Enzyme System; Light; Microsomes; Mixed Function Oxygenases; Nuts; Seeds; Serotonin; Substrate Specificity; Tryptamines; Tryptophan | 1999 |
L-METHIONINE AND L-TRYPTOPHAN FEEDINGS IN NON-PSYCHOTIC AND SCHIZOPHRENIC PATIENTS WITH AND WITHOUT TRANYLCYPROMINE.
Topics: Ammonia; Chlorides; Humans; Jews; Methionine; Neurotic Disorders; Potassium; Schizophrenia; Sodium; Toxicology; Tranylcypromine; Tryptophan; Urine | 1963 |
DRUGS RELATED TO THE EXACERBATION OR AMELIORATION OF HEPATIC COMA AND THEIR EFFECTS ON AMMONIA TOXICITY.
Topics: Acetazolamide; Ammonia; Ammonium Chloride; Arginine; Chlorothiazide; Cortisone; Formaldehyde; Glutamates; Hepatic Encephalopathy; Hydrogen-Ion Concentration; Iproniazid; Mice; Morphine; Paraldehyde; Pentobarbital; Phenobarbital; Research; Toxicology; Tryptophan | 1963 |
[MORPHOLOGICAL, ENZYMOLOGICAL AND TOXEMIC EARLY SEQUELAE AFTER PORTACAVAL ANASTOMOSIS].
Topics: Ammonia; Blood Chemical Analysis; Blood Protein Electrophoresis; Cholinesterases; Glucuronates; Liver; Liver Diseases; Necrosis; Perchlorates; Portacaval Shunt, Surgical; Toxemia; Tryptophan; Uremia | 1963 |
[THE PHYSIOPATHOLOGY AND TREATMENT OF HEPATIC COMA].
Topics: Alkalosis; Ammonia; Anti-Bacterial Agents; Antibiotics, Antitubercular; Arginine; Bilirubin; Blood Coagulation Disorders; Blood Glucose; Cortisone; Gastrointestinal Hemorrhage; Hepatic Encephalopathy; Humans; Hypoglycemia; Liver; Metabolism; Tryptophan; Urea; Water-Electrolyte Balance | 1964 |
A MODIFIED METHOD FOR THE SEPARATION OF BASIC AMINO ACIDS ON THE AUTOMATIC AMINO ACID ANALYZER.
Topics: Amino Acids; Amino Acids, Basic; Aminobutyrates; Ammonia; Arginine; Autoanalysis; Chromatography; Creatine; Creatinine; Hexosamines; Histidine; Lysine; Muscles; Ornithine; Peptides; Phenylalanine; Rabbits; Research; Tryptophan; Tyrosine | 1964 |
CATALYTIC PROPERTIES OF TRYPTOPHANASE, A MULTIFUNCTIONAL PYRIDOXAL PHOSPHATE ENZYME.
Topics: Aminohydrolases; Ammonia; Animals; Catalysis; Cattle; Cysteine; Electrophoresis; Escherichia coli; Indoles; Leuconostoc; Manometry; Multifunctional Enzymes; Mutation; Potassium; Pyridoxal Phosphate; Pyruvates; Research; Serine; Serum Albumin; Serum Albumin, Bovine; Tryptophan | 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 |
CLEAVAGE OF PEPTIDE PROLINE BONDS BY LITHIUM ALUMINUM HYDRIDE.
Topics: Aluminum Compounds; Amides; Amino Alcohols; Ammonia; Aspartic Acid; Autoanalysis; Chromatography; Countercurrent Distribution; Glutamates; Glycine; Indicators and Reagents; Leucine; Lithium Compounds; Ornithine; Peptides; Phenylalanine; Proline; Research; Tryptophan; Tyrothricin | 1964 |
CLEAVAGE OF OLEFINIC PEPTIDES UNDER THE CONDITIONS OF OXYMERCURATION.
Topics: Acetates; Ammonia; Chemical Phenomena; Chemistry; Glycine; Mercury; Oxidation-Reduction; Peptides; Research; Tryptophan | 1964 |
Nitrogen metabolism in the African lungfish (Protopterus dolloi) aestivating in a mucus cocoon on land.
Topics: Africa; Alanine; Ammonia; Animals; Arginine; Aspartic Acid; Estivation; Fishes; Glutamic Acid; Time Factors; Tryptophan | 2004 |
Catchment-scale fluorescence water quality determination.
Topics: Ammonia; England; Environmental Monitoring; Fluorescence; Nitrates; Oxygen; Phosphates; Quality Control; Solubility; Tryptophan; Water; Water Pollutants | 2005 |
Co-administration of C-Phycocyanin ameliorates thioacetamide-induced hepatic encephalopathy in Wistar rats.
Topics: Albumins; Ammonia; Animals; Antioxidants; Brain; Dose-Response Relationship, Drug; Drug Interactions; Hepatic Encephalopathy; Lipid Peroxidation; Liver; Male; Microscopy, Electron, Transmission; Phycocyanin; Rats; Rats, Wistar; Reaction Time; Survival Rate; Thioacetamide; Tryptophan | 2007 |
Exercise increases tryptophan availability to the brain in older men age 57-70 years.
Topics: Aged; Amino Acids, Branched-Chain; Ammonia; Biomarkers; Blood Glucose; Body Composition; Brain; Exercise; Exercise Test; Fatty Acids, Nonesterified; Humans; Lactates; Linear Models; Male; Middle Aged; Prolactin; Tryptophan | 2012 |
Toxicity assessment of 4-chlorophenol to aerobic granular sludge and its interaction with extracellular polymeric substances.
Topics: Aerobiosis; Ammonia; Chlorophenols; Nitrogen; Polymers; Polysaccharides; Sewage; Spectrometry, Fluorescence; Tryptophan; Waste Disposal, Fluid | 2015 |
Ammonia generation by tryptophan synthase drives a key genetic difference between genital and ocular
Topics: Ammonia; Chlamydia Infections; Chlamydia trachomatis; Eye; Genitalia; Humans; Tryptophan; Tryptophan Synthase | 2019 |
A mouse model of hepatic encephalopathy: bile duct ligation induces brain ammonia overload, glial cell activation and neuroinflammation.
Topics: Ammonia; Animals; Bile Acids and Salts; Bile Ducts; Brain; Choline; Disease Models, Animal; Glutamine; Hepatic Encephalopathy; Hyperammonemia; Kynurenine; Liver Diseases; Mice; Microglia; Neuroinflammatory Diseases; Rats; Taurine; Tryptophan | 2022 |
Biochemical characterization and substrate specificity of the gene cluster for biosyntheses of K-252a and its analogs by in vitro heterologous expression system of Escherichia coli.
Topics: Actinomycetales; Ammonium Hydroxide; Carbazoles; Chromatography, High Pressure Liquid; Electrophoresis, Polyacrylamide Gel; Escherichia coli; Gene Expression; Genes, Bacterial; Glycosyltransferases; Hydrogen-Ion Concentration; Hydroxides; Indole Alkaloids; Multigene Family; Substrate Specificity; Time Factors; Tryptophan | 2009 |
Strategy for pH control and pH feedback-controlled substrate feeding for high-level production of L-tryptophan by Escherichia coli.
Topics: Ammonium Hydroxide; Batch Cell Culture Techniques; Culture Media; Escherichia coli; Fermentation; Glucose; Hydrogen-Ion Concentration; Hydroxides; Potassium Compounds; Tryptophan | 2013 |
Utilization of acid hydrolysate of recovered bacterial cell as a novel organic nitrogen source for L-tryptophan fermentation.
Topics: Ammonium Hydroxide; Biomass; Bioreactors; Escherichia coli; Factor Analysis, Statistical; Fermentation; Humans; Hydrolysis; Industrial Microbiology; Nitrogen; Sulfuric Acids; Temperature; Tryptophan; Wastewater | 2019 |