caffeine has been researched along with allopurinol in 105 studies
Timeframe | Studies, this research(%) | All Research% |
---|---|---|
pre-1990 | 14 (13.33) | 18.7374 |
1990's | 28 (26.67) | 18.2507 |
2000's | 39 (37.14) | 29.6817 |
2010's | 22 (20.95) | 24.3611 |
2020's | 2 (1.90) | 2.80 |
Authors | Studies |
---|---|
Duffy, EM; Jorgensen, WL | 1 |
Topliss, JG; Yoshida, F | 1 |
Abraham, MH; Gao, F; Lombardo, F; Shalaeva, MY; Tupper, KA | 1 |
Gao, F; Lombardo, F; Shalaeva, MY; Tupper, KA | 1 |
Gao, F; Lombardo, F; Obach, RS; Shalaeva, MY | 2 |
Bellows, DS; Clarke, ID; Diamandis, P; Dirks, PB; Graham, J; Jamieson, LG; Ling, EK; Sacher, AG; Tyers, M; Ward, RJ; Wildenhain, J | 1 |
Lombardo, F; Obach, RS; Waters, NJ | 1 |
Ahlin, G; Artursson, P; Bergström, CA; Gustavsson, L; Karlsson, J; Larsson, R; Matsson, P; Norinder, U; Pedersen, JM | 1 |
González-Díaz, H; Orallo, F; Quezada, E; Santana, L; Uriarte, E; Viña, D; Yáñez, M | 1 |
Chupka, J; El-Kattan, A; Feng, B; Miller, HR; Obach, RS; Troutman, MD; Varma, MV | 1 |
Barnes, JC; Bradley, P; Day, NC; Fourches, D; Reed, JZ; Tropsha, A | 1 |
Choi, SS; Contrera, JF; Hastings, KL; Kruhlak, NL; Sancilio, LF; Weaver, JL; Willard, JM | 1 |
Chang, G; El-Kattan, A; Miller, HR; Obach, RS; Rotter, C; Steyn, SJ; Troutman, MD; Varma, MV | 1 |
Fisk, L; Greene, N; Naven, RT; Note, RR; Patel, ML; Pelletier, DJ | 1 |
Glen, RC; Lowe, R; Mitchell, JB | 1 |
Ekins, S; Williams, AJ; Xu, JJ | 1 |
Artursson, P; Haglund, U; Karlgren, M; Kimoto, E; Lai, Y; Norinder, U; Vildhede, A; Wisniewski, JR | 1 |
Ambroso, JL; Ayrton, AD; Baines, IA; Bloomer, JC; Chen, L; Clarke, SE; Ellens, HM; Harrell, AW; Lovatt, CA; Reese, MJ; Sakatis, MZ; Taylor, MA; Yang, EY | 1 |
Afshari, CA; Chen, Y; Dunn, RT; Hamadeh, HK; Kalanzi, J; Kalyanaraman, N; Morgan, RE; van Staden, CJ | 1 |
Chen, M; Hu, C; Suzuki, A; Thakkar, S; Tong, W; Yu, K | 1 |
Berizzi, A; Bird, L; Culurgioni, S; Navratilova, IH; Olsen, RHJ; Rawlins, PB; Robinson, S; Shepherd, C; Thompson, LEJ; Varzandeh, S | 1 |
Hossie, RD; McGilveray, IJ; Sved, S | 1 |
Loft, S; Poulsen, HE; Vistisen, K | 2 |
Bircher, J; Brandes, A; Compagnone, D; Hille, H; Münch, B; Ullrich, D | 1 |
Ayers, GD; Evans, WE; Lin, JS; Relling, MV | 1 |
Andersson, T; Bergstrand, R; Cederberg, C; Eriksson, S; Lagerström, PO; Skånberg, I | 1 |
Kalow, W; Tang, BK | 1 |
Barstow, L; Small, RE | 1 |
Boda, D; Németh, I | 1 |
Birkett, DJ; Kjellen, G; Lelo, A; Miners, JO | 1 |
Gale, GR; Smith, AB | 1 |
Kalow, W | 2 |
Ben-Zvi, Z; Gorodischer, R; Margalith, M; Warszawski, D; Yaari, A | 1 |
Campbell, ME; Grant, DM; Kalow, W; Tang, BK | 1 |
Gohda, E; Iwata, H; Morita, E; Nishino, K; Yamamoto, I | 1 |
Berlin, RD; Hawkins, RA | 1 |
Bukowskyj, M; Munt, PW; Nakatsu, K | 1 |
Grant, DM; Kalow, W; Tang, BK | 1 |
Kela, U; Trivedi, CP; Vijayvargiya, R | 1 |
Ben-Zvi, Z; Gorodischer, R; Warszawski, D | 1 |
Beke, M; Hasler, JA; Kalow, W; Masimirembwa, CM; Tang, BK | 1 |
Bennett, PN; Dobrocky, P; Farmer, KC; Notarianni, LJ; Nugent, KP; Oliver, S; Phillips, RK; Spigelman, AD | 1 |
Alm, C; Benitez, J; Bertilsson, L; Bondesson, U; Carrillo, JA; Dahl, ML; Lindström, L; Llerena, A; Ramos, S; Rodriguez de la Rubia, I | 1 |
Hamelin, BA; LeBel, M; Manseau, L; Richer, M; Vallé, F; Xu, K | 1 |
Kirillova, TV; Spivak, IM | 1 |
Fay, LB; Richoz, J; Stadler, RH; Turesky, RJ; Welti, DH | 1 |
Brøsen, K; Rasmussen, BB | 1 |
Benitez, J; Carrillo, JA | 1 |
Goldhaber, JI | 1 |
Birkett, DJ; Miners, JO | 1 |
Benowitz, NL; Fenster, L; Hiatt, RA; Quale, C; Wilson, M; Windham, GC | 1 |
Amsden, GW; Kashuba, AD; Kearns, GL; Nafziger, AN; Trépanier, EF | 1 |
Bertino, JS; Gotschall, R; James, AW; Kashuba, AD; Kearns, GL; Leeder, JS; Nafziger, AN | 1 |
Hageman, G; Krul, C | 1 |
Bechtel, PR; Bechtel, YC; Bendriss, EK; Bennani, A; Brientini, MP; Mantion, G; Miguet, JP; Paintaud, G | 1 |
Beck, DJ; Bertino, JS; Gotschall, R; Kashuba, AD; Kearns, GL; Kulawy, RW; Leeder, JS; Nafziger, AN; Rocci, ML | 1 |
Fuchs, P; Haefeli, WE; Ledermann, HR; Wenk, M | 1 |
Bliesath, H; Hartmann, M; Koch, H; Mascher, H; Steinijans, VW; Wurst, W; Zech, K | 1 |
Madhavi, YS; Madyastha, KM; Sridhar, GR; Vadiraja, BB | 1 |
Boda, D; Boda, M; Németh, I | 1 |
Cha, YN; Cho, MH; Chung, WG; Kang, JH; Park, CS | 1 |
Tamura, K; Wada-Takahashi, S | 1 |
Bertino, JS; Bleakley, JF; Gaedigk, A; Gotschall, R; Kearns, GL; Kim, JS; Leeder, JS; Nafziger, AN; Streetman, DS | 1 |
Castro, GD; Castro, JA; Costantini, MH; Delgado de Layño, AM | 1 |
Bechtel, PR; Bechtel, YC; Brientini, MP; Hrusovsky, S; Lelouët, H; Mantion, G; Miguet, JP; Paintaud, G | 1 |
Biollaz, J; Décosterd, LA; Kesselring, UW; Nyéki, A | 1 |
Ishii, Y; Kodama, Y; Kotegawa, T; Kuranari, M; Matsuki, S; Miyakawa, I; Nakano, S; Tanaka, Y; Tsutsumi, K | 1 |
Cao, XM; Ling, SS; Lu, JF; Yi, T; Zhuo, HT | 1 |
Alzueta, AF; Orallo, F | 1 |
Fujieda, M; Ishizaki, T; Kamataki, T; Nakagawa, K; Saruwatari, J; Shindo, J; Tajiri, T; Yamazaki, H | 1 |
Aklillu, E; Bertilsson, L; Carrillo, JA; Ingelman-Sundberg, M; Makonnen, E | 1 |
Bertino, JS; Chainuvati, S; Gaedigk, A; Kashuba, AD; Kearns, GL; Leeder, JS; Nafziger, AN; Rowland, E; Sellers, E; Zhang, Y | 1 |
Benowitz, NL; Jacob, P; Peng, M | 1 |
Echizen, H; Ishizaki, T; Nachi, S; Nakagawa, K; Saruwatari, J; Shindo, J | 1 |
Krähenbühl, S; Todesco, L; Wenk, M | 1 |
Abdel-Rahman, SM; Kashuba, AD; Kennedy, MJ; Leeder, JS | 1 |
Bertino, JS; Gaedigk, A; Kashuba, AD; Kearns, G; Leeder, JS; Nafziger, AN; Rowland, E; Sellers, E; Shelepova, T; Victory, J; Zhang, Y | 1 |
Fanlo, A; Ferrández-Longás, A; García de Jalón, A; Labarta, JI; Mayayo, E; Mayayo-Sinués, E; Sinués, B | 1 |
Dash, SS; Gummadi, SN | 1 |
Asprodini, EK; Begas, E; Kouvaras, E; Papakosta, S; Tsakalof, A | 1 |
Fukushima, Y; Hisadome, M; Muramoto, Y; Nakagawa, K; Nakao, M; Saruwatari, J; Shoji, M; Yamano, N | 1 |
Babu, VR; Karanth, NG; Kumar, MA; Patra, S; Thakur, MS | 1 |
Burhenne, J; Göggelmann, C; Haefeli, WE; Mikus, G; Rengelshausen, J; Riedel, KD; Walter-Sack, I | 1 |
Davis, DA; Gaedigk, A; Kearns, GL; Kennedy, MJ; Pearce, RE; Smith, N | 1 |
Fuhr, U; Jetter, A; Kinzig, M; Rodamer, M; Sörgel, F; Tomalik-Scharte, D | 1 |
Chen, Y; Fan, L; Guo, D; Han, Y; Huang, YF; Ou-Yang, DS; Tu, JH; Wang, YN; Xiao, P; Zhou, G; Zhou, HH | 1 |
Abate, S; Bianco, G; Cataldi, TR; Labella, C | 1 |
Hakooz, NM | 1 |
Blake, M; Brown, KC; Gaedigk, A; Gotzkowsky, K; Hein, DW; Jones, AE; Kashuba, AD; van der Horst, C; Werner, RE | 1 |
Aklillu, E; Carrillo, JA; Djordjevic, N; Gervasini, G; Jankovic, S | 1 |
Barnes, WS; Kim, JH; Kwak, HB; Lawler, JM | 1 |
Cao, S; Chen, BL; Chen, Y; He, YJ; Tan, ZR; Wang, G; Wang, LP; Xiao, CQ; Zhang, W; Zhou, G; Zhou, HH | 1 |
Chiney, MS; Johnson, LA; Schwarzenberg, SJ | 1 |
Aklillu, E; Bertilsson, L; Carrillo, JA; Djordjevic, N; Karlsson, S; Roh, HK; Ueda, N | 1 |
Abe, T; Fujimura, Y; Kitamado, M; Muramoto, Y; Nakagawa, K; Saruwatari, J; Shimomasuda, M; Takaishi, C; Takashima, A; Umemoto, Y; Yoshida, K | 1 |
Ding, TB; Imamura, M; Miyata, K; Nakagawa, K; Oniki, K; Saruwatari, J; Soraoka, H; Takashima, A; Tsuda, Y; Uchiyashiki, Y; Yoshida, K | 1 |
Adehin, A; Bolaji, OO | 1 |
Abooali, M; Berger, SM; Casely-Hayford, MA; Fasler-Kan, E; Gibbs, BF; Gonçalves Silva, I; Prokhorov, A; Sumbayev, VV; Yasinska, IM | 1 |
Kadowaki, D; Kamihashi, R; Kita, A; Matsuda, K; Miyata, K; Nakagawa, K; Oniki, K; Ono, T; Saruwatari, J; Soraoka, H; Taharazako, K; Takashima, A; Uchiyashiki, Y; Yasui-Furukori, N | 1 |
Asprodini, EK; Begas, E; Kilindris, T; Kouretas, D; Kouvaras, E; Tsioutsioumi, A | 1 |
Choi, MS; Ji, YS; Kim, HJ; Nakamura, K; Rehman, SU; Yoo, HH; Yu, JS | 1 |
Bernis, ME; Imam, FB; Maes, E; Maltepe, E; Pang, R; Pasca, AM; Robertson, NJ; Sabir, H; Schleehuber, Y; Silverman, J; White, Y; Zweyer, M | 1 |
6 review(s) available for caffeine and allopurinol
Article | Year |
---|---|
DILIrank: the largest reference drug list ranked by the risk for developing drug-induced liver injury in humans.
Topics: Chemical and Drug Induced Liver Injury; Databases, Factual; Drug Labeling; Humans; Pharmaceutical Preparations; Risk | 2016 |
Ethnic differences in reactions to drugs and xenobiotics. Caffeine and other drugs.
Topics: Acetylation; Caffeine; Cytochrome P-450 Enzyme System; Diphenhydramine; Drug-Related Side Effects and Adverse Reactions; Gene Frequency; Genetic Markers; Humans; Kinetics; Methemoglobinemia; Mutagens; Phenylthiourea; Polymorphism, Genetic; Porphyrias; Racial Groups; Superoxide Dismutase; Taste; Xanthine Oxidase | 1986 |
Theophylline reassessed.
Topics: Acidosis; Aging; Allopurinol; Animals; Anti-Bacterial Agents; Breast Feeding; Bronchodilator Agents; Caffeine; Contraceptives, Oral; Cooking; Cystic Fibrosis; Drug Interactions; Erythromycin; Female; Heart Diseases; Histamine H2 Antagonists; Humans; Hypoxia; Infections; Kinetics; Liver Diseases; Lung Diseases, Obstructive; Maternal-Fetal Exchange; Phenobarbital; Phenytoin; Pregnancy; Respiration Disorders; Sleep; Smoking; Theophylline | 1984 |
The use of caffeine as a metabolic probe for human drug metabolizing enzymes.
Topics: Acetyltransferases; Caffeine; Cytochrome P-450 Enzyme System; Humans; Xanthine Oxidase | 1996 |
Catabolic pathways and biotechnological applications of microbial caffeine degradation.
Topics: Bacterial Proteins; Caffeine; Cytochrome P-450 CYP1A2; Industrial Microbiology; Metabolic Networks and Pathways; Metabolism; Models, Biological; Oxidoreductases, N-Demethylating; Oxygenases; Pseudomonas; Xanthine Oxidase; Yeasts | 2006 |
Caffeine metabolic ratios for the in vivo evaluation of CYP1A2, N-acetyltransferase 2, xanthine oxidase and CYP2A6 enzymatic activities.
Topics: Aryl Hydrocarbon Hydroxylases; Arylamine N-Acetyltransferase; Caffeine; Cytochrome P-450 CYP1A2; Cytochrome P-450 CYP2A6; Dose-Response Relationship, Drug; Evaluation Studies as Topic; Humans; Metabolic Networks and Pathways; Molecular Structure; Phenotype; Xanthine Oxidase | 2009 |
14 trial(s) available for caffeine and allopurinol
Article | Year |
---|---|
Omeprazole treatment does not affect the metabolism of caffeine.
Topics: Adult; Arylamine N-Acetyltransferase; Caffeine; Chromatography, High Pressure Liquid; Cytochrome P-450 CYP1A2; Cytochrome P-450 Enzyme System; Double-Blind Method; Enzyme Induction; Humans; Male; Omeprazole; Oxidoreductases; Xanthine Oxidase | 1991 |
Clozapine disposition covaries with CYP1A2 activity determined by a caffeine test.
Topics: Administration, Oral; Arylamine N-Acetyltransferase; Caffeine; Chromatography, High Pressure Liquid; Clozapine; Cytochrome P-450 CYP1A2; Cytochrome P-450 Enzyme System; Humans; Methylation; Oxidoreductases; Sweden; Xanthine Oxidase | 1994 |
Determination of urinary metabolites of caffeine for the assessment of cytochrome P4501A2, xanthine oxidase, and N-acetyltransferase activity in humans.
Topics: Acetyltransferases; Adolescent; Adult; Biotransformation; Caffeine; Central Nervous System Stimulants; Chromatography, High Pressure Liquid; Contraceptives, Oral, Hormonal; Cytochrome P-450 CYP1A2; Drug Interactions; Female; Humans; Male; Reproducibility of Results; Sex Characteristics; Smoking; Spectrophotometry, Ultraviolet; Xanthine Oxidase | 1996 |
Absence of effect of terbinafine on the activity of CYP1A2, NAT-2, and xanthine oxidase.
Topics: Adult; Arylamine N-Acetyltransferase; Caffeine; Cross-Over Studies; Cytochrome P-450 CYP1A2; Cytochrome P-450 CYP1A2 Inhibitors; Enzyme Inhibitors; Female; Humans; Male; Naphthalenes; Terbinafine; Xanthine Oxidase | 1998 |
Quantitation of three-month intraindividual variability and influence of sex and menstrual cycle phase on CYP1A2, N-acetyltransferase-2, and xanthine oxidase activity determined with caffeine phenotyping.
Topics: Adult; Arylamine N-Acetyltransferase; Caffeine; Central Nervous System Stimulants; Chromatography, High Pressure Liquid; Cytochrome P-450 CYP1A2; Female; Humans; Male; Menstrual Cycle; Sex Characteristics; Xanthine Oxidase | 1998 |
Pantoprazole lacks induction of CYP1A2 activity in man.
Topics: 2-Pyridinylmethylsulfinylbenzimidazoles; Administration, Oral; Adult; Area Under Curve; Benzimidazoles; Caffeine; Central Nervous System Stimulants; Cross-Over Studies; Cytochrome P-450 CYP1A2; Double-Blind Method; Drug Interactions; Enzyme Inhibitors; Humans; Male; Omeprazole; Pantoprazole; Proton Pump Inhibitors; Sulfoxides; Xanthine Oxidase | 1999 |
Combined phenotypic assessment of cytochrome p450 1A2, 2C9, 2C19, 2D6, and 3A, N-acetyltransferase-2, and xanthine oxidase activities with the "Cooperstown 5+1 cocktail".
Topics: Acetyltransferases; Adult; Aryl Hydrocarbon Hydroxylases; Biomarkers; Caffeine; Cytochrome P-450 CYP1A2; Cytochrome P-450 CYP2C19; Cytochrome P-450 CYP2C9; Cytochrome P-450 CYP2D6; Cytochrome P-450 CYP3A; Cytochrome P-450 Enzyme System; Dextromethorphan; Drug Combinations; Genotype; Humans; Midazolam; Middle Aged; Mixed Function Oxygenases; Omeprazole; Oxidoreductases, N-Demethylating; Phenotype; Phosphodiesterase Inhibitors; Reproducibility of Results; Vitamins; Warfarin; Xanthine Oxidase | 2003 |
Effects of cigarette smoking and carbon monoxide on chlorzoxazone and caffeine metabolism.
Topics: Adult; Amino Acid Transport System A; Amino Acid Transport Systems; Area Under Curve; Caffeine; Carbon Monoxide; Carboxyhemoglobin; Carrier Proteins; Central Nervous System Stimulants; Chlorzoxazone; Cytochrome P-450 CYP1A2; Cytochrome P-450 CYP2E1; Gas Chromatography-Mass Spectrometry; Half-Life; Humans; Male; Middle Aged; Muscle Relaxants, Central; Smoking; Xanthine Oxidase | 2003 |
The in-vivo effects of sho-saiko-to, a traditional Chinese herbal medicine, on two cytochrome P450 enzymes (1A2 and 3A) and xanthine oxidase in man.
Topics: Adult; Aryl Hydrocarbon Hydroxylases; Caffeine; Cytochrome P-450 CYP1A2; Cytochrome P-450 CYP3A; Drugs, Chinese Herbal; Enzyme Activation; Female; Humans; Male; Oxidoreductases, N-Demethylating; Xanthine Oxidase | 2003 |
Effect of a triphasic oral contraceptive on drug-metabolizing enzyme activity as measured by the validated Cooperstown 5+1 cocktail.
Topics: Adult; Arylamine N-Acetyltransferase; Caffeine; Contraceptives, Oral; Cross-Over Studies; Cytochrome P-450 Enzyme System; Dextromethorphan; Drug Combinations; Drug Interactions; Ethinyl Estradiol; Female; Genotype; Humans; Midazolam; Norgestrel; Omeprazole; Therapeutic Equivalency; Vitamin K; Warfarin; Xanthine Oxidase | 2005 |
The effect of Shoseiryuto, a traditional Japanese medicine, on cytochrome P450s, N-acetyltransferase 2 and xanthine oxidase, in extensive or intermediate metabolizers of CYP2D6.
Topics: Adult; Arylamine N-Acetyltransferase; Caffeine; Central Nervous System Stimulants; Cytochrome P-450 CYP2D6; Cytochrome P-450 CYP3A; Drugs, Chinese Herbal; Female; Herb-Drug Interactions; Humans; Male; Xanthine Oxidase | 2007 |
Reduction in non-glomerular renal clearance of the caffeine metabolite 1-methylxanthine by probenecid.
Topics: Adult; Area Under Curve; Arylamine N-Acetyltransferase; Caffeine; Central Nervous System Stimulants; Chromatography, High Pressure Liquid; Creatinine; Cross-Over Studies; Cytochrome P-450 CYP1A2; Depression, Chemical; Double-Blind Method; Female; Humans; Kidney; Male; Probenecid; Renal Agents; Spectrophotometry, Ultraviolet; Xanthine Oxidase; Xanthines | 2007 |
Genistein alters caffeine exposure in healthy female volunteers.
Topics: Adolescent; Adult; Aryl Hydrocarbon Hydroxylases; Arylamine N-Acetyltransferase; Caffeine; Cytochrome P-450 CYP1A2; Cytochrome P-450 CYP2A6; Drug Interactions; Female; Genistein; Humans; Xanthine Oxidase | 2011 |
A herbal-drug interaction study of keishi-bukuryo-gan, a traditional herbal preparation used for menopausal symptoms, in healthy female volunteers.
Topics: Acetyltransferases; Adult; Caffeine; Cytochrome P-450 CYP1A2 Inhibitors; Cytochrome P-450 CYP2D6; Cytochrome P-450 CYP3A; Dextromethorphan; Drugs, Chinese Herbal; Estrogens; Female; Herb-Drug Interactions; Humans; Hydrocortisone; Menopause; Phenotype; Phytotherapy; Reference Values; Xanthine Oxidase; Young Adult | 2012 |
85 other study(ies) available for caffeine and allopurinol
Article | Year |
---|---|
Prediction of drug solubility from Monte Carlo simulations.
Topics: Monte Carlo Method; Pharmaceutical Preparations; Solubility | 2000 |
QSAR model for drug human oral bioavailability.
Topics: Administration, Oral; Biological Availability; Humans; Models, Biological; Models, Molecular; Pharmaceutical Preparations; Pharmacokinetics; Structure-Activity Relationship | 2000 |
ElogPoct: a tool for lipophilicity determination in drug discovery.
Topics: 1-Octanol; Chromatography, High Pressure Liquid; Pharmaceutical Preparations; Solubility; Solvents | 2000 |
ElogD(oct): a tool for lipophilicity determination in drug discovery. 2. Basic and neutral compounds.
Topics: 1-Octanol; Chromatography, High Pressure Liquid; Pharmaceutical Preparations; Solubility; Water | 2001 |
Prediction of volume of distribution values in humans for neutral and basic drugs using physicochemical measurements and plasma protein binding data.
Topics: Blood Proteins; Chemical Phenomena; Chemistry, Physical; Half-Life; Humans; Hydrogen-Ion Concentration; Models, Biological; Pharmaceutical Preparations; Pharmacokinetics; Protein Binding | 2002 |
Prediction of human volume of distribution values for neutral and basic drugs. 2. Extended data set and leave-class-out statistics.
Topics: Algorithms; Blood Proteins; Half-Life; Humans; Hydrogen-Ion Concentration; Models, Biological; Pharmaceutical Preparations; Pharmacokinetics; Protein Binding; Statistics as Topic; Tissue Distribution | 2004 |
Chemical genetics reveals a complex functional ground state of neural stem cells.
Topics: Animals; Cell Survival; Cells, Cultured; Mice; Molecular Structure; Neoplasms; Neurons; Pharmaceutical Preparations; Sensitivity and Specificity; Stem Cells | 2007 |
Trend analysis of a database of intravenous pharmacokinetic parameters in humans for 670 drug compounds.
Topics: Blood Proteins; Half-Life; Humans; Hydrogen Bonding; Infusions, Intravenous; Pharmacokinetics; Protein Binding | 2008 |
Structural requirements for drug inhibition of the liver specific human organic cation transport protein 1.
Topics: Cell Line; Computer Simulation; Drug Design; Gene Expression Profiling; Humans; Hydrogen Bonding; Liver; Molecular Weight; Organic Cation Transporter 1; Pharmaceutical Preparations; Predictive Value of Tests; Reverse Transcriptase Polymerase Chain Reaction; RNA, Messenger; Structure-Activity Relationship | 2008 |
Quantitative structure-activity relationship and complex network approach to monoamine oxidase A and B inhibitors.
Topics: Computational Biology; Drug Design; Humans; Isoenzymes; Molecular Structure; Monoamine Oxidase; Monoamine Oxidase Inhibitors; Quantitative Structure-Activity Relationship | 2008 |
Physicochemical determinants of human renal clearance.
Topics: Humans; Hydrogen Bonding; Hydrogen-Ion Concentration; Hydrophobic and Hydrophilic Interactions; Kidney; Metabolic Clearance Rate; Molecular Weight | 2009 |
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 |
Development of a phospholipidosis database and predictive quantitative structure-activity relationship (QSAR) models.
Topics: | 2008 |
Physicochemical space for optimum oral bioavailability: contribution of human intestinal absorption and first-pass elimination.
Topics: Administration, Oral; Biological Availability; Humans; Intestinal Absorption; Pharmaceutical Preparations | 2010 |
Developing structure-activity relationships for the prediction of hepatotoxicity.
Topics: Chemical and Drug Induced Liver Injury; Databases, Factual; Humans; Structure-Activity Relationship; Tetracyclines; Thiophenes | 2010 |
Predicting phospholipidosis using machine learning.
Topics: Animals; Artificial Intelligence; Databases, Factual; Drug Discovery; Humans; Lipidoses; Models, Biological; Phospholipids; Support Vector Machine | 2010 |
A predictive ligand-based Bayesian model for human drug-induced liver injury.
Topics: Bayes Theorem; Chemical and Drug Induced Liver Injury; Humans; Ligands | 2010 |
Classification of inhibitors of hepatic organic anion transporting polypeptides (OATPs): influence of protein expression on drug-drug interactions.
Topics: Atorvastatin; Biological Transport; Drug Interactions; Estradiol; Estrone; HEK293 Cells; Heptanoic Acids; Humans; Hydroxymethylglutaryl-CoA Reductase Inhibitors; In Vitro Techniques; Least-Squares Analysis; Liver; Liver-Specific Organic Anion Transporter 1; Models, Molecular; Multivariate Analysis; Organic Anion Transporters; Organic Anion Transporters, Sodium-Independent; Protein Isoforms; Pyrroles; Solute Carrier Organic Anion Transporter Family Member 1B3; Structure-Activity Relationship; Transfection | 2012 |
Preclinical strategy to reduce clinical hepatotoxicity using in vitro bioactivation data for >200 compounds.
Topics: Chemical and Drug Induced Liver Injury; Cytochrome P-450 Enzyme Inhibitors; Cytochrome P-450 Enzyme System; Decision Trees; Drug Evaluation, Preclinical; Drug-Related Side Effects and Adverse Reactions; Glutathione; Humans; Liver; Pharmaceutical Preparations; Protein Binding | 2012 |
A multifactorial approach to hepatobiliary transporter assessment enables improved therapeutic compound development.
Topics: Animals; ATP Binding Cassette Transporter, Subfamily B; ATP Binding Cassette Transporter, Subfamily B, Member 11; ATP-Binding Cassette Transporters; Biological Transport; Chemical and Drug Induced Liver Injury; Cluster Analysis; Drug-Related Side Effects and Adverse Reactions; Humans; Liver; Male; Multidrug Resistance-Associated Proteins; Pharmacokinetics; Rats; Rats, Sprague-Dawley; Recombinant Proteins; Risk Assessment; Risk Factors; Toxicity Tests | 2013 |
Surface Plasmon Resonance Screening to Identify Active and Selective Adenosine Receptor Binding Fragments.
Topics: | 2022 |
The human metabolism of caffeine to theophylline.
Topics: Allopurinol; Aminophylline; Biological Availability; Caffeine; Humans; Male; Theophylline; Time Factors | 1976 |
Foreign compound metabolism capacity in man measured from metabolites of dietary caffeine.
Topics: Acetylation; Arylamine N-Acetyltransferase; Caffeine; Cytochrome P-450 CYP1A2; Cytochrome P-450 Enzyme System; Diet; Exercise; Female; Humans; Life Style; Longitudinal Studies; Male; Multivariate Analysis; Oxidoreductases; Vegetables; Xanthine Oxidase | 1992 |
Urinary caffeine metabolites in man. Age-dependent changes and pattern in various clinical situations.
Topics: Adolescent; Adult; Age Factors; Allopurinol; Caffeine; Child; Cimetidine; Drug Interactions; Female; Humans; Kidney Failure, Chronic; Liver Cirrhosis; Male; Phenytoin; Smoking; Theophylline | 1992 |
Racial and gender differences in N-acetyltransferase, xanthine oxidase, and CYP1A2 activities.
Topics: Adolescent; Adult; Aging; Analysis of Variance; Arylamine N-Acetyltransferase; Caffeine; Child; Child, Preschool; Cytochrome P-450 CYP1A2; Cytochrome P-450 Enzyme System; Female; Humans; Male; Middle Aged; Oxidoreductases; Racial Groups; Reference Values; Sex Characteristics; Xanthine Oxidase | 1992 |
Use of caffeine metabolite ratios to explore CYP1A2 and xanthine oxidase activities.
Topics: Adult; Caffeine; Cytochrome P-450 Enzyme System; Drug Interactions; Ethanol; Female; Humans; Longitudinal Studies; Male; Uracil; Xanthine Oxidase | 1991 |
Cytochrome P450 IA2 activity in man measured by caffeine metabolism: effect of smoking, broccoli and exercise.
Topics: Arylamine N-Acetyltransferase; Caffeine; Contraceptives, Oral; Cytochrome P-450 CYP1A2; Cytochrome P-450 Enzyme System; Diet; Exercise; Female; Humans; Male; Oxidoreductases; Pregnancy; Sex Factors; Smoking; Vegetables; Xanthine Oxidase | 1991 |
Liver function assessment by drug metabolism.
Topics: Acetamides; Adult; Allopurinol; Aminopyrine; Caffeine; Half-Life; Humans; Indocyanine Green; Lidocaine; Liver; Liver Circulation; Liver Diseases; Liver Function Tests; Metabolic Clearance Rate; Middle Aged; Oxypurinol; Pyrimidines; Sorbitol | 1990 |
Measurement of urinary caffeine metabolites reflecting the "in vivo" xanthine oxidase activity in premature infants with RDS and in hypoxic states of children.
Topics: Biomarkers; Caffeine; Humans; Hypoxia; Infant, Newborn; Infant, Premature; Respiratory Distress Syndrome, Newborn; Uric Acid; Xanthine Oxidase | 1989 |
Paraxanthine metabolism in humans: determination of metabolic partial clearances and effects of allopurinol and cimetidine.
Topics: Acetylation; Adult; Allopurinol; Caffeine; Cimetidine; Cytochrome P-450 Enzyme System; Humans; Kidney; Male; Metabolic Clearance Rate; Theophylline | 1989 |
Interaction of caffeine with acetaminophen in mice: schedule dependency of the antagonism by caffeine of acetaminophen hepatotoxicity and the effects of caffeine metabolites, allopurinol, and diethyl ether.
Topics: Acetaminophen; Alanine Transaminase; Allopurinol; Animals; Biotransformation; Caffeine; Ethanol; Ether; Ethyl Ethers; Liver; Male; Mice; Mice, Inbred C57BL; Mice, Inbred DBA | 1988 |
Changes in theophylline metabolism during postnatal development in rat liver slices.
Topics: Allopurinol; Animals; Caffeine; Chromatography, High Pressure Liquid; Chromatography, Thin Layer; Liver; Proadifen; Rats; Theobromine; Theophylline | 1986 |
Effect of allopurinol on caffeine disposition in man.
Topics: Adult; Allopurinol; Biotransformation; Caffeine; Dose-Response Relationship, Drug; Drug Evaluation; Female; Humans; Kidney; Kinetics; Male; Uric Acid; Xanthine Oxidase; Xanthines | 1986 |
Variability of caffeine metabolism in humans.
Topics: Acetylation; Biotransformation; Caffeine; Dealkylation; Female; Half-Life; Humans; Kinetics; Liver Diseases; Male; Phenotype; Pregnancy; Racial Groups; Smoking; Time Factors; Xanthine Oxidase | 1985 |
Effects of 5-diazoimidazole-4-carboxamide and 3-diazopyrazole-4-carboxamide and related thioazo compounds on xanthine oxidase, uricase, and hypoxanthine-guanine phosphoriboxyltransferase.
Topics: Allopurinol; Amides; Animals; Azides; Azo Compounds; Caffeine; Cattle; Diazonium Compounds; Imidazoles; Inosine Nucleotides; Mercaptopurine; Pentosephosphates; Pentosyltransferases; Pyrazoles; Rats; Structure-Activity Relationship; Triazenes; Urate Oxidase; Xanthine Oxidase | 1972 |
Secretion of purines by the small intestine: general characteristics.
Topics: Adenine; Allopurinol; Animals; Biological Transport; Caffeine; Carbon Isotopes; Chromatography, Paper; Cricetinae; Female; Hypoxanthines; Intestinal Absorption; Intestinal Mucosa; Intestine, Small; Methods; Nucleotides; Purines; Pyrimidines; Tritium; Uric Acid; Xanthine Oxidase | 1968 |
Variability in caffeine metabolism.
Topics: Acetyltransferases; Administration, Oral; Adolescent; Adult; Aged; Biotransformation; Caffeine; Canada; China; Chromatography, High Pressure Liquid; Cytochrome P-450 Enzyme System; Female; Humans; Hydroxylation; Male; Middle Aged; Xanthine Oxidase | 1983 |
Inhibitory effects of methylxanthines on the activity of xanthine oxidase.
Topics: Animals; Brain; Buffaloes; Caffeine; Female; In Vitro Techniques; Kidney; Kinetics; Lung; Milk; Myocardium; Rats; Theobromine; Theophylline; Uric Acid; Xanthine Oxidase; Xanthines | 1980 |
Caffeine metabolism in liver slices during postnatal development in the rat.
Topics: Aging; Allopurinol; Animals; Biotransformation; Caffeine; Chromatography, High Pressure Liquid; In Vitro Techniques; Kinetics; Liver; Proadifen; Rats | 1981 |
Low CYP1A2 activity in rural Shona children of Zimbabwe.
Topics: Acetyltransferases; Adolescent; Adult; Caffeine; Canada; Child; Chromatography, High Pressure Liquid; Cytochrome P-450 CYP1A2; Cytochrome P-450 Enzyme System; Female; Humans; Liver; Male; Oxidoreductases; Rural Population; Urban Population; Xanthine Oxidase; Zimbabwe | 1995 |
Caffeine phenotyping of cytochrome P4501A2, N-acetyltransferase, and xanthine oxidase in patients with familial adenomatous polyposis.
Topics: Acetyltransferases; Adenomatous Polyposis Coli; Adolescent; Adult; Aged; Caffeine; Colectomy; Cytochrome P-450 CYP1A2; Cytochrome P-450 Enzyme System; Female; Humans; Male; Middle Aged; Oxidoreductases; Phenotype; Time Factors; Xanthine Oxidase | 1995 |
Caffeine metabolism in cystic fibrosis: enhanced xanthine oxidase activity.
Topics: Alleles; Aryl Hydrocarbon Hydroxylases; Arylamine N-Acetyltransferase; Base Sequence; Caffeine; Case-Control Studies; Child; Child, Preschool; Chromatography, High Pressure Liquid; Cystic Fibrosis; Cytochrome P-450 CYP1A2; Cytochrome P-450 CYP2A6; Cytochrome P-450 Enzyme System; Female; Humans; Liver; Male; Mixed Function Oxygenases; Molecular Sequence Data; Oxidoreductases; Polymerase Chain Reaction; Xanthine Oxidase | 1994 |
[A comparative study of the effect of allopurinol and caffeine on mitotic cycle recovery in cells after x-ray irradiation].
Topics: Allopurinol; Caffeine; DNA; Dose-Response Relationship, Drug; Flow Cytometry; HeLa Cells; Humans; Mitosis; Radiation-Sensitizing Agents; Time Factors | 1993 |
Oxidation of caffeine and related methylxanthines in ascorbate and polyphenol-driven Fenton-type oxidations.
Topics: Animals; Ascorbic Acid; Caffeine; Catalase; Cattle; Chromatography, High Pressure Liquid; Edetic Acid; Ferrous Compounds; Hydroxyl Radical; Kinetics; Liver; Mass Spectrometry; Molecular Structure; Oxidation-Reduction; Phenols; Purines; Superoxide Dismutase; Xanthine; Xanthine Oxidase; Xanthines | 1996 |
CYP1A2 activity, gender and smoking, as variables influencing the toxicity of caffeine.
Topics: Adult; Arylamine N-Acetyltransferase; Caffeine; Cytochrome P-450 CYP1A2; Dealkylation; Female; Humans; Male; Sex Factors; Smoking; Xanthine Oxidase | 1996 |
Free radicals enhance Na+/Ca2+ exchange in ventricular myocytes.
Topics: Animals; Caffeine; Calcium; Carrier Proteins; Heart Ventricles; Hydrogen Peroxide; Myocardium; Patch-Clamp Techniques; Rabbits; Reactive Oxygen Species; Sarcoplasmic Reticulum; Sodium-Calcium Exchanger; Xanthine; Xanthine Oxidase; Xanthines | 1996 |
Rate of caffeine metabolism and risk of spontaneous abortion.
Topics: Abortion, Spontaneous; Adult; Arylamine N-Acetyltransferase; Caffeine; Case-Control Studies; Cytochrome P-450 CYP1A2; Female; Humans; Pregnancy; Pregnancy Outcome; Risk Factors; Xanthine Oxidase | 1998 |
Analysis of urinary caffeine metabolites to assess biotransformation enzyme activities by reversed-phase high-performance liquid chromatography.
Topics: Adolescent; Adult; Aryl Hydrocarbon Hydroxylases; Arylamine N-Acetyltransferase; Biotransformation; Caffeine; Child; Chromatography, High Pressure Liquid; Contraceptives, Oral; Cytochrome P-450 CYP1A2; Cytochrome P-450 CYP2A6; Cytochrome P-450 Enzyme System; Female; Humans; Male; Mixed Function Oxygenases; Xanthine Oxidase | 1998 |
Acetylation polymorphism expression in patients before and after liver transplantation: influence of host/graft genotypes.
Topics: Acetylation; Adult; Aged; Alleles; Arylamine N-Acetyltransferase; Caffeine; Female; Genotype; Humans; Liver Transplantation; Male; Middle Aged; Phenotype; Polymorphism, Genetic; Transplantation Chimera; Xanthine Oxidase | 1998 |
Effect of fluvoxamine therapy on the activities of CYP1A2, CYP2D6, and CYP3A as determined by phenotyping.
Topics: Acetyltransferases; Adult; Anti-Anxiety Agents; Antitussive Agents; Aryl Hydrocarbon Hydroxylases; Caffeine; Central Nervous System Stimulants; Cytochrome P-450 CYP1A2 Inhibitors; Cytochrome P-450 CYP2D6 Inhibitors; Cytochrome P-450 CYP3A; Cytochrome P-450 Enzyme Inhibitors; Dextromethorphan; Female; Fluvoxamine; Genotype; Humans; Hypnotics and Sedatives; Male; Midazolam; Oxidoreductases, N-Demethylating; Phenotype; Reference Values; Selective Serotonin Reuptake Inhibitors; Time Factors; Xanthine Oxidase | 1998 |
Xanthine oxidase inhibition by allopurinol affects the reliability of urinary caffeine metabolic ratios as markers for N-acetyltransferase 2 and CYP1A2 activities.
Topics: Allopurinol; Arylamine N-Acetyltransferase; Biomarkers; Caffeine; Chromatography, High Pressure Liquid; Cytochrome P-450 CYP1A2; Dose-Response Relationship, Drug; Female; Humans; Male; Oxypurinol; Prospective Studies; Uric Acid; Xanthine Oxidase | 1999 |
Purification and partial characterization of caffeine oxidase--A novel enzyme from a mixed culture consortium.
Topics: Caffeine; Klebsiella; Oxidation-Reduction; Oxygenases; Rhodococcus; Substrate Specificity; Theobromine; Theophylline; Uric Acid; Xanthine Oxidase | 1999 |
The caffeine metabolic ratio as an index of xanthine oxidase activity in clinically active and silent celiac patients.
Topics: Caffeine; Celiac Disease; Child; Child, Preschool; Chromatography, High Pressure Liquid; Female; Humans; Iron; Male; Uric Acid; Xanthine Oxidase; Xanthines | 1999 |
Effect of age and smoking on in vivo CYP1A2, flavin-containing monooxygenase, and xanthine oxidase activities in Koreans: determination by caffeine metabolism.
Topics: Adult; Aged; Aging; Asian People; Caffeine; Case-Control Studies; Chromatography, High Pressure Liquid; Cytochrome P-450 CYP1A2; Female; Humans; Korea; Male; Middle Aged; Oxygenases; Reference Values; Smoking; Xanthine Oxidase | 2000 |
Actions of reactive oxygen species on AH/type 2 myenteric neurons in guinea pig distal colon.
Topics: Action Potentials; Animals; Caffeine; Colon; Guinea Pigs; Hydrogen Peroxide; Hydroxyl Radical; Hypoxanthine; Male; Myenteric Plexus; Neurons; Oxidants; Patch-Clamp Techniques; Phosphodiesterase Inhibitors; Reactive Oxygen Species; Xanthine Oxidase | 2000 |
Combined phenotypic assessment of CYP1A2, CYP2C19, CYP2D6, CYP3A, N-acetyltransferase-2, and xanthine oxidase with the "Cooperstown cocktail".
Topics: Administration, Oral; Adult; Anti-Anxiety Agents; Anti-Ulcer Agents; Antitussive Agents; Aryl Hydrocarbon Hydroxylases; Arylamine N-Acetyltransferase; Caffeine; Central Nervous System Stimulants; Cytochrome P-450 CYP1A2; Cytochrome P-450 CYP2C19; Cytochrome P-450 CYP2D6; Cytochrome P-450 CYP3A; Cytochrome P-450 Enzyme System; Dextromethorphan; Drug Combinations; Drug Interactions; Female; Genotype; Humans; Hypnotics and Sedatives; Male; Midazolam; Middle Aged; Mixed Function Oxygenases; Omeprazole; Oxidoreductases, N-Demethylating; Phenotype; Polymerase Chain Reaction; Xanthine Oxidase | 2000 |
Rat ventral prostate xanthine oxidase bioactivation of ethanol to acetaldehyde and 1-hydroxyethyl free radicals: analysis of its potential role in heavy alcohol drinking tumor-promoting effects.
Topics: Acetaldehyde; Alcohol Drinking; Allopurinol; Animals; Antimetabolites; Caffeine; Carcinogens; Chromatography, Gas; Cytosol; Diet; Enzyme Inhibitors; Ethanol; Free Radicals; Gas Chromatography-Mass Spectrometry; Hypoxanthine; Male; Meat; NAD; Neoplasms; Niacinamide; Phosphodiesterase Inhibitors; Prostate; Prostatic Neoplasms; Purines; Rats; Rats, Sprague-Dawley; Spin Trapping; Temperature; Theobromine; Theophylline; Time Factors; Vasodilator Agents; Xanthine; Xanthine Oxidase | 2001 |
Caffeine metabolism before and after liver transplantation.
Topics: Adult; Aged; Aryl Hydrocarbon Hydroxylases; Azathioprine; Caffeine; Case-Control Studies; Cyclosporine; Cytochrome P-450 CYP1A2; Cytochrome P-450 CYP2A6; Cytochrome P-450 Enzyme System; Female; Humans; Immunosuppressive Agents; Liver; Liver Function Tests; Liver Transplantation; Male; Middle Aged; Mixed Function Oxygenases; Reference Values; Uracil; Xanthine Oxidase | 2001 |
Extractionless method for the simultaneous high-performance liquid chromatographic determination of urinary caffeine metabolites for N-acetyltransferase 2, cytochrome P450 1A2 and xanthine oxidase activity assessment.
Topics: Arylamine N-Acetyltransferase; Caffeine; Chromatography, High Pressure Liquid; Cytochrome P-450 CYP1A2; Humans; Models, Chemical; Reproducibility of Results; Uracil; Xanthine Oxidase | 2001 |
The effect of pregnancy on cytochrome P4501A2, xanthine oxidase, and N-acetyltransferase activities in humans.
Topics: Adult; Analysis of Variance; Arylamine N-Acetyltransferase; Caffeine; Cytochrome P-450 CYP1A2; Female; Humans; Postpartum Period; Pregnancy; Pregnancy Trimester, First; Pregnancy Trimester, Second; Pregnancy Trimester, Third; Xanthine Oxidase | 2001 |
[Determination of caffeine metabolite for the evaluation of N-acetyltransferase, CYP1A2 and xanthine oxidase activities].
Topics: Adolescent; Adult; Aged; Arylamine N-Acetyltransferase; Caffeine; Chromatography, High Pressure Liquid; Cytochrome P-450 CYP1A2; Female; Humans; Male; Middle Aged; Theophylline; Uracil; Uric Acid; Xanthine Oxidase; Xanthines | 1997 |
Preliminary study of the vasorelaxant effects of (+)-nantenine, an alkaloid isolated from Platycapnos spicata, in rat aorta.
Topics: Animals; Aorta; Aporphines; Caffeine; Calcium; Calcium Channel Blockers; Dose-Response Relationship, Drug; In Vitro Techniques; Male; Papaveraceae; Plant Extracts; Rats; Rats, Wistar; Superoxides; Vasoconstriction; Vasodilation; Vasodilator Agents; Xanthine Oxidase | 2001 |
A population phenotyping study of three drug-metabolizing enzymes in Kyushu, Japan, with use of the caffeine test.
Topics: Adult; Arylamine N-Acetyltransferase; Asian People; Caffeine; Cytochrome P-450 CYP1A2; Female; Genotype; Humans; Japan; Male; Phenotype; Reference Values; Uric Acid; Xanthine Oxidase | 2002 |
Xanthine oxidase activity is influenced by environmental factors in Ethiopians.
Topics: Black People; Caffeine; Environment; Ethiopia; Female; Genotype; Humans; Male; Phenotype; Polymorphism, Genetic; Sex Factors; Smoking; Sweden; Xanthine Oxidase | 2003 |
Effect of St John's wort on the activities of CYP1A2, CYP3A4, CYP2D6, N-acetyltransferase 2, and xanthine oxidase in healthy males and females.
Topics: Adult; Arylamine N-Acetyltransferase; Caffeine; Cytochrome P-450 CYP1A2; Cytochrome P-450 CYP2D6; Cytochrome P-450 CYP3A; Cytochrome P-450 Enzyme System; Female; Humans; Hydrocortisone; Hypericum; Male; Middle Aged; Xanthine Oxidase | 2004 |
Comparison of various urine collection intervals for caffeine and dextromethorphan phenotyping in children.
Topics: Arylamine N-Acetyltransferase; Caffeine; Child; Child, Preschool; Cystic Fibrosis; Cytochrome P-450 CYP1A2; Cytochrome P-450 CYP2D6; Dextromethorphan; Female; Genotype; Humans; Male; Phenotype; Specimen Handling; Xanthine Oxidase | 2004 |
Lack of effect of growth hormone replacement therapy on CYP1A2 and xanthine oxidase activities in growth hormone-deficient children.
Topics: Adolescent; Biomarkers; Caffeine; Child; Child, Preschool; Cytochrome P-450 CYP1A2; Female; Hormone Replacement Therapy; Human Growth Hormone; Humans; Male; Recombinant Proteins; Xanthine Oxidase | 2006 |
In vivo evaluation of CYP1A2, CYP2A6, NAT-2 and xanthine oxidase activities in a Greek population sample by the RP-HPLC monitoring of caffeine metabolic ratios.
Topics: Adult; Aryl Hydrocarbon Hydroxylases; Arylamine N-Acetyltransferase; Caffeine; Chromatography, High Pressure Liquid; Cytochrome P-450 CYP1A2; Cytochrome P-450 CYP2A6; Female; Humans; Male; Middle Aged; Mixed Function Oxygenases; Reproducibility of Results; Sensitivity and Specificity; Smoking; Theophylline; Uracil; Uric Acid; Xanthine Oxidase; Xanthines | 2007 |
Development of a biosensor for caffeine.
Topics: Biosensing Techniques; Caffeine; Calibration; Chromatography, High Pressure Liquid; Enzymes, Immobilized; Hydrogen-Ion Concentration; Pseudomonas alcaligenes; Sensitivity and Specificity; Temperature; Xanthine Oxidase | 2007 |
Six-month, prospective, longitudinal, open-label caffeine and dextromethorphan phenotyping study in children with growth hormone deficiency receiving recombinant human growth hormone replacement.
Topics: Adolescent; Arylamine N-Acetyltransferase; Caffeine; Central Nervous System Stimulants; Child; Child, Preschool; Cytochrome P-450 CYP1A2; Cytochrome P-450 CYP2D6; Dextromethorphan; Dwarfism, Pituitary; Female; Growth Disorders; Human Growth Hormone; Humans; Insulin-Like Growth Factor I; Longitudinal Studies; Male; Phenotype; Prospective Studies; Recombinant Proteins; Xanthine Oxidase | 2008 |
Phenotyping of N-acetyltransferase type 2 and xanthine oxidase with caffeine: when should urine samples be collected?
Topics: Acetylation; Adult; Arylamine N-Acetyltransferase; Caffeine; Central Nervous System Stimulants; Humans; Male; Phenotype; Time Factors; Uracil; Uric Acid; White People; Xanthine Oxidase; Xanthines | 2009 |
Simultaneous action of the flavonoid quercetin on cytochrome P450 (CYP) 1A2, CYP2A6, N-acetyltransferase and xanthine oxidase activity in healthy volunteers.
Topics: Adolescent; Adult; Aryl Hydrocarbon Hydroxylases; Arylamine N-Acetyltransferase; Caffeine; Cross-Over Studies; Cytochrome P-450 CYP1A2; Cytochrome P-450 CYP2A6; Dose-Response Relationship, Drug; Drug Interactions; Humans; Inactivation, Metabolic; Male; Quercetin; Time Factors; Xanthine Oxidase; Young Adult | 2009 |
Identification and fragmentation pathways of caffeine metabolites in urine samples via liquid chromatography with positive electrospray ionization coupled to a hybrid quadrupole linear ion trap (LTQ) and Fourier transform ion cyclotron resonance mass spec
Topics: Arylamine N-Acetyltransferase; Caffeine; Chromatography, High Pressure Liquid; Cytochrome P-450 CYP1A1; Female; Humans; Male; Spectrometry, Mass, Electrospray Ionization; Spectroscopy, Fourier Transform Infrared; Tandem Mass Spectrometry; Xanthine Oxidase | 2009 |
Variability in drug metabolizing enzyme activity in HIV-infected patients.
Topics: Adult; Arylamine N-Acetyltransferase; Caffeine; Cytochrome P-450 Enzyme System; Dextromethorphan; Female; HIV Infections; Humans; Interleukin-6; Male; Midazolam; Phenotype; Tumor Necrosis Factor-alpha; Xanthine Oxidase | 2010 |
In vivo evaluation of CYP2A6 and xanthine oxidase enzyme activities in the Serbian population.
Topics: Adult; Aryl Hydrocarbon Hydroxylases; Caffeine; Cytochrome P-450 CYP2A6; Female; Gene Frequency; Genotype; Humans; Male; Middle Aged; Polymerase Chain Reaction; Polymorphism, Single Nucleotide; Serbia; Smoking; White People; Xanthine Oxidase | 2010 |
Redox modulation of diaphragm contractility: Interaction between DHPR and RyR channels.
Topics: Animals; Antioxidants; Caffeine; Calcium Channel Agonists; Calcium Channel Blockers; Calcium Channels, L-Type; Diaphragm; Dithiothreitol; In Vitro Techniques; Male; Muscle Contraction; Nitrendipine; Organometallic Compounds; Oxidation-Reduction; Oxidative Stress; Procaine; Rats; Rats, Inbred F344; Reactive Oxygen Species; Reducing Agents; Ruthenium Red; Ryanodine Receptor Calcium Release Channel; Salicylates; Xanthine Oxidase | 2010 |
Altered xanthine oxidase and N-acetyltransferase activity in obese children.
Topics: Arylamine N-Acetyltransferase; Biomarkers; Body Weight; Caffeine; Case-Control Studies; Child; Cytochrome P-450 CYP1A2; Female; Humans; Male; Models, Statistical; Obesity; Xanthine Oxidase | 2011 |
Comparison of N-acetyltransferase-2 enzyme genotype-phenotype and xanthine oxidase enzyme activity between Swedes and Koreans.
Topics: Arylamine N-Acetyltransferase; Asian People; Caffeine; Contraceptives, Oral; Genotype; Humans; Phenotype; Polymorphism, Single Nucleotide; Sex Factors; Uracil; Uric Acid; White People; Xanthine Oxidase; Xanthines | 2012 |
Effects of Seijo-bofu-to, a traditional Japanese herbal medicine containing furanocoumarin derivatives, on the drug-metabolizing enzyme activities in healthy male volunteers.
Topics: Adult; Arylamine N-Acetyltransferase; Asian People; Caffeine; Cytochrome P-450 CYP1A2; Cytochrome P-450 CYP2D6; Cytochrome P-450 CYP3A; Dextromethorphan; Furocoumarins; Healthy Volunteers; Herb-Drug Interactions; Herbal Medicine; Humans; Hydrocortisone; Male; Medicine, Traditional; Phytotherapy; Plants, Medicinal; Xanthine Oxidase; Young Adult | 2014 |
Distribution of xanthine oxidase activity in a Nigerian population.
Topics: Adult; Black People; Caffeine; Female; Humans; Male; Phenotype; Polymorphism, Genetic; Xanthine Oxidase; Young Adult | 2015 |
Caffeine affects the biological responses of human hematopoietic cells of myeloid lineage via downregulation of the mTOR pathway and xanthine oxidase activity.
Topics: Angiogenic Proteins; Basophils; Caffeine; Cell Line, Tumor; Cell Lineage; Cytokines; Dose-Response Relationship, Drug; Down-Regulation; Glycolysis; Humans; Inflammation Mediators; Leukemia, Myeloid, Acute; Monocytes; Myeloid Cells; Signal Transduction; TOR Serine-Threonine Kinases; Xanthine Oxidase | 2015 |
The Effect of Yokukansan, a Traditional Herbal Preparation Used for the Behavioral and Psychological Symptoms of Dementia, on the Drug-Metabolizing Enzyme Activities in Healthy Male Volunteers.
Topics: Adult; Arylamine N-Acetyltransferase; Behavior; Caffeine; Cytochrome P-450 Enzyme System; Dementia; Dextromethorphan; Drug Interactions; Drugs, Chinese Herbal; Healthy Volunteers; Humans; Hydrocortisone; Male; Middle Aged; Xanthine Oxidase | 2016 |
Dietary effects of Sideritis scardica "mountain tea" on human in vivo activities of xenobiotic metabolizing enzymes in healthy subjects.
Topics: Acetaminophen; Adult; Arylamine N-Acetyltransferase; Caffeine; Cytochrome P-450 CYP1A2; Cytochrome P-450 CYP2A6; Dietary Exposure; Female; Glucuronosyltransferase; Healthy Volunteers; Herb-Drug Interactions; Humans; Male; Middle Aged; Plant Components, Aerial; Saliva; Sideritis; Substrate Specificity; Teas, Herbal; Xanthine Oxidase; Xenobiotics; Young Adult | 2018 |
Determination of Urinary Caffeine Metabolites as Biomarkers for Drug Metabolic Enzyme Activities.
Topics: Adult; Arylamine N-Acetyltransferase; Biomarkers; Caffeine; Chromatography, High Pressure Liquid; Cytochrome P-450 CYP1A2; Cytochrome P-450 CYP2A6; Humans; Male; Middle Aged; Phenotype; Urinalysis; Xanthine Oxidase; Young Adult | 2019 |
Comparing the efficacy in reducing brain injury of different neuroprotective agents following neonatal hypoxia-ischemia in newborn rats: a multi-drug randomized controlled screening trial.
Topics: Allopurinol; Animals; Animals, Newborn; Asphyxia Neonatorum; Brain; Brain Injuries; Caffeine; Clemastine; Disease Models, Animal; Hedgehog Proteins; Humans; Hydroxybutyrates; Hypothermia, Induced; Hypoxia; Hypoxia-Ischemia, Brain; Infant, Newborn; Ischemia; Melatonin; Neuroprotective Agents; Rats | 2023 |