Page last updated: 2024-08-25

1,3,7,9-tetramethyluric acid and uric acid

1,3,7,9-tetramethyluric acid has been researched along with uric acid in 32 studies

Research

Studies (32)

TimeframeStudies, this research(%)All Research%
pre-19900 (0.00)18.7374
1990's1 (3.13)18.2507
2000's3 (9.38)29.6817
2010's14 (43.75)24.3611
2020's14 (43.75)2.80

Authors

AuthorsStudies
Cameron, IL; Lyles, MB; Rawls, HR1
Bearne, SL; Lunn, FA; Roy, AC1
Andersson, HC; Kihlman, BA1
Cameron, IL; Lyles, MB1
Ashihara, H; Crozier, A; Kato, M; Ye, CX; Zheng, XQ1
Li, J; Song, X; Wang, Y; Yang, X; Ye, C; Zheng, X1
Bartlett, SE; Bjeldanes, L; Feduccia, AA; Li, R; Simms, JA; Wang, Y; Ye, C; Yi, HY1
Chen, WM; He, RR; Kurihara, H; Li, WX; Li, YF; Zhai, YJ1
Hiroshi, K; Hu, JQ; Li, P; Tang, BH; Wang, SB; Xu, JK; Yao, XS; Zhang, WK1
Gong, P; He, RR; Hu, HH; Kurihara, H; Li, SB; Li, YF; Mao, ZF; Ouyang, SH; Tsoi, B; Wu, YP1
Bloomer, RJ; Joyner, KJ; Kuhman, DJ1
Hayward, S; Mullins, J; Mumford, P; Roberts, M; Taylor, L; Urbina, S; Wilborn, C1
Cao, H; Chang, YQ; He, RR; Kurihara, H; Li, WX; Li, YF; Ouyang, SH; Tian, HY; Wang, TM1
Bai, X; He, J; Li, T; Qiao, H; Xu, J; Ye, X; Zhang, J; Zhang, W1
Gong, L; He, RR; Hong, M; Kurihara, H; Li, YF; Tian, JY; Wang, GE; Wu, YP; Yao, N; Zhai, YJ1
Ahn, KS; Baek, SH; Jung, SH; Ko, JH; Nam, D; Yang, MH1
Dai, HZ; Song, LL; Song, YN; Zhang, XR; Zhang, Y1
Cesareo, KR; Mason, JR; Morrissey, MC; Ormsbee, MJ; Saracino, PG1
Gao, M; Huang, Q; Huang, Z; Zheng, C; Zheng, J1
Abe, I; Cao, ZQ; Ding, K; Duan, WJ; Gong, HB; He, RR; Hu, D; Kurihara, H; Li, YF; Lu, X; Ouyang, SH; Sun, WY; Tan, L; Wang, Y; Xie, C; Xie, G; Zhang, YH; Zhang, ZM1
Chen, J; Chen, L; Jin, J; Ma, J; Wang, S; Yao, M1
Chen, L; Jiang, CK; Jin, JQ; Yao, MZ1
Bi, W; Cheng, Y; Duan, WJ; He, RR; Kurihara, H; Li, SB; Li, WX; Li, YF; Liang, L; Liu, B; Lu, DH; Pan, MH; Wang, TM; Yang, XJ; Zhong, HB1
Hsu, WL; Jhuo, CF; Kuo, PC; Li, YC; Lin, PR; Tzen, JTC1
Bloomer, RJ; Butawan, M; Mondal, G; Wang, YH; Yates, CR1
Fox, CD; Godwin, JS; Mumford, PW; Osburn, SC; Roberts, MD1
Chen, WY; Hsu, YY; Jhuo, CF; Tzen, JTC1
Chen, X; Gu, M; Shao, S; Wang, P; Yang, R; Ye, N; Zhao, F1
Liu, XT; Liu, XY; Lv, XT; Qiao, JD; Wang, GE; Wang, RH; Ye, YJ1
Arent, SM; Bello, ML; Cardaci, TD; Chandler, AJ; Cintineo, HP; McFadden, BA1
Kong, M; Shen, P; Shi, Y; Xu, L; Yang, M; Yu, C1
Cerqueira, HSC; Corrêa Junior, M; Filho, HT; Martinelli Junior, CE1

Trials

5 trial(s) available for 1,3,7,9-tetramethyluric acid and uric acid

ArticleYear
Cognitive Performance and Mood Following Ingestion of a Theacrine-Containing Dietary Supplement, Caffeine, or Placebo by Young Men and Women.
    Nutrients, 2015, Nov-19, Volume: 7, Issue:11

    Topics: Affect; Appetite; Blood Pressure; Caffeine; Camellia; Cognition; Cross-Over Studies; Diet Records; Dietary Supplements; Double-Blind Method; Female; Heart Rate; Humans; Male; Motor Activity; Plant Extracts; Plant Leaves; Reaction Time; Uric Acid; Young Adult

2015
Safety of TeaCrine®, a non-habituating, naturally-occurring purine alkaloid over eight weeks of continuous use.
    Journal of the International Society of Sports Nutrition, 2016, Volume: 13

    Topics: Adult; Anti-Inflammatory Agents; Blood Pressure; Camellia; Coffee; Cognition; Dietary Supplements; Double-Blind Method; Female; Healthy Volunteers; Humans; Male; Motor Activity; Plant Extracts; Plant Leaves; Treatment Outcome; Uric Acid

2016
The effects of a caffeine-like supplement, TeaCrine®, on muscular strength, endurance and power performance in resistance-trained men.
    Journal of the International Society of Sports Nutrition, 2019, Oct-28, Volume: 16, Issue:1

    Topics: Adult; Caffeine; Cross-Over Studies; Double-Blind Method; Humans; Male; Muscle Strength; Muscle, Skeletal; Performance-Enhancing Substances; Physical Endurance; Resistance Training; Uric Acid; Young Adult

2019
Effects of caffeine, methylliberine, and theacrine on vigilance, marksmanship, and hemodynamic responses in tactical personnel: a double-blind, randomized, placebo-controlled trial.
    Journal of the International Society of Sports Nutrition, 2022, Volume: 19, Issue:1

    Topics: Alkaloids; Athletic Performance; Caffeine; Double-Blind Method; Heart Rate; Humans; Polyesters; Purines; Uric Acid

2022
Effects of Theacrine as a Pre-Workout Supplement.
    International journal of environmental research and public health, 2022, 10-28, Volume: 19, Issue:21

    Topics: Caffeine; Cross-Over Studies; Dietary Supplements; Double-Blind Method; Humans; Male; Uric Acid

2022

Other Studies

27 other study(ies) available for 1,3,7,9-tetramethyluric acid and uric acid

ArticleYear
Structural basis for the binding affinity of xanthines with the DNA intercalator acridine orange.
    Journal of medicinal chemistry, 2001, Dec-20, Volume: 44, Issue:26

    Topics: Acridine Orange; Intercalating Agents; Methylation; Nonlinear Dynamics; Spectrophotometry; Structure-Activity Relationship; Xanthines

2001
Inhibition of CTP synthase from Escherichia coli by xanthines and uric acids.
    Bioorganic & medicinal chemistry letters, 2010, Jan-01, Volume: 20, Issue:1

    Topics: Carbon-Nitrogen Ligases; Enzyme Inhibitors; Escherichia coli; Kinetics; Methylation; Structure-Activity Relationship; Uric Acid; Xanthines

2010
Enhancement and reduction by methylated oxypurines of the frequencies of chromatid aberrations induced by camptothecin in root-tip cells of Vicia faba.
    Mutation research, 1992, Volume: 269, Issue:2

    Topics: Caffeine; Camptothecin; Chromatids; Chromosome Aberrations; Dose-Response Relationship, Drug; Methylnitrosourea; Mutagenicity Tests; Mutagens; Plants; Purines; Theophylline; Uric Acid

1992
Caffeine and other xanthines as cytochemical blockers and removers of heterocyclic DNA intercalators from chromatin.
    Cell biology international, 2002, Volume: 26, Issue:2

    Topics: Acridine Orange; Aminophylline; Animals; Caffeine; Cell Nucleus; Central Nervous System Stimulants; Chick Embryo; Chromatin; Chromosomes; DNA; Fluorescent Dyes; Intercalating Agents; Kinetics; Microscopy, Fluorescence; Mutagens; Phosphodiesterase Inhibitors; Protein Binding; Spectrometry, Fluorescence; Time Factors; Uric Acid; Xanthine

2002
Theacrine (1,3,7,9-tetramethyluric acid) synthesis in leaves of a Chinese tea, kucha (Camellia assamica var. kucha).
    Phytochemistry, 2002, Volume: 60, Issue:2

    Topics: Adenosine; Alkaloids; Beverages; Caffeine; Camellia; Carbon Radioisotopes; Methylation; Molecular Structure; Plant Leaves; Staining and Labeling; Time Factors; Uric Acid

2002
Theacrine, a purine alkaloid with anti-inflammatory and analgesic activities.
    Fitoterapia, 2010, Volume: 81, Issue:6

    Topics: Analgesics; Animals; Anti-Inflammatory Agents; Camellia; Drug Evaluation, Preclinical; Female; Inflammation; Male; Mice; Pain; Phytotherapy; Plant Extracts; Uric Acid

2010
Locomotor activation by theacrine, a purine alkaloid structurally similar to caffeine: involvement of adenosine and dopamine receptors.
    Pharmacology, biochemistry, and behavior, 2012, Volume: 102, Issue:2

    Topics: Animals; Locomotion; Nucleus Accumbens; Rats; Rats, Long-Evans; Receptors, Dopamine; Receptors, Purinergic P1; Uric Acid

2012
Theacrine, a purine alkaloid obtained from Camellia assamica var. kucha, attenuates restraint stress-provoked liver damage in mice.
    Journal of agricultural and food chemistry, 2013, Jul-03, Volume: 61, Issue:26

    Topics: Animals; Camellia; China; Dietary Supplements; Hepatic Insufficiency; Liver; Mice; Protective Agents; Restraint, Physical; Specific Pathogen-Free Organisms; Stress, Physiological; Stress, Psychological; Uric Acid

2013
[Determination of theacrine in rat plasma by RP-HPLC].
    Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica, 2013, Volume: 38, Issue:5

    Topics: Animals; Blood Chemical Analysis; Calibration; Chromatography, High Pressure Liquid; Chromatography, Reverse-Phase; Rats; Rats, Sprague-Dawley; Reproducibility of Results; Uric Acid

2013
Differing chemical compositions of three teas may explain their different effects on acute blood pressure in spontaneously hypertensive rats.
    Journal of the science of food and agriculture, 2015, Volume: 95, Issue:6

    Topics: Animals; Blood Pressure; Caffeine; Camellia sinensis; Epinephrine; Hypertension; Male; Norepinephrine; Plant Extracts; Rats, Inbred SHR; Rats, Wistar; Species Specificity; Tea; Theobromine; Uric Acid; Xanthines

2015
A comparative analysis of chemical compositions in Camellia sinensis var. puanensis Kurihara, a novel Chinese tea, by HPLC and UFLC-Q-TOF-MS/MS.
    Food chemistry, 2017, Feb-01, Volume: 216

    Topics: Alkaloids; Caffeine; Camellia sinensis; China; Chromatography, High Pressure Liquid; Humans; Plant Leaves; Polyphenols; Tandem Mass Spectrometry; Tea; Uric Acid

2017
Theacrine: A purine alkaloid from Camellia assamica var. kucha with a hypnotic property via the adenosine system.
    Neuroscience letters, 2017, 10-17, Volume: 659

    Topics: Adenosine; Alkaloids; Animals; Caffeine; Camellia; Drug Synergism; Hippocampus; Male; Mice; Pentobarbital; Pyrimidines; Rats; Sleep Initiation and Maintenance Disorders; Sleep Stages; Triazoles; Uric Acid; Xanthines

2017
Theacrine protects against nonalcoholic fatty liver disease by regulating acylcarnitine metabolism.
    Metabolism: clinical and experimental, 2018, Volume: 85

    Topics: Animals; Apolipoproteins E; Carnitine; Diet, High-Fat; Energy Metabolism; Male; Mice; Mice, Knockout; Non-alcoholic Fatty Liver Disease; Oleic Acid; Plant Extracts; Protective Agents; Signal Transduction; Uric Acid

2018
Theacrine attenuates epithelial mesenchymal transition in human breast cancer MDA-MB-231 cells.
    Phytotherapy research : PTR, 2019, Volume: 33, Issue:7

    Topics: Antineoplastic Agents; Breast Neoplasms; Cadherins; Cell Line, Tumor; Cell Movement; Epithelial-Mesenchymal Transition; Female; Fibronectins; Humans; Nuclear Proteins; Snail Family Transcription Factors; Transforming Growth Factor beta; Twist-Related Protein 1; Uric Acid; Vimentin

2019
Theacrine attenuates myocardial fibrosis after myocardial infarction via the SIRT3/β-catenin/PPARγ pathway in estrogen-deficient mice.
    European review for medical and pharmacological sciences, 2019, Volume: 23, Issue:12

    Topics: Administration, Oral; Animals; Apoptosis; beta Catenin; Disease Models, Animal; Echocardiography; Estrogens; Female; Fibrosis; Heart; Heart Failure; Mice; Myocardial Infarction; Myocardium; Ovariectomy; PPAR gamma; Signal Transduction; Sirtuin 3; Up-Regulation; Uric Acid; Ventricular Remodeling

2019
Theacrine alleviates chronic inflammation by enhancing TGF-β-mediated shifts via TGF-β/SMAD pathway in Freund's incomplete adjuvant-induced rats.
    Biochemical and biophysical research communications, 2020, 02-12, Volume: 522, Issue:3

    Topics: Animals; Anti-Inflammatory Agents; Arthritis, Experimental; Arthritis, Rheumatoid; Chronic Disease; Freund's Adjuvant; Inflammation; Joints; Lipids; Rats; Rats, Sprague-Dawley; Signal Transduction; Smad Proteins; Transforming Growth Factor beta; Uric Acid

2020
Identification and characterization of N9-methyltransferase involved in converting caffeine into non-stimulatory theacrine in tea.
    Nature communications, 2020, 03-19, Volume: 11, Issue:1

    Topics: Binding Sites; Biosynthetic Pathways; Caffeine; Cloning, Molecular; Crystallography, X-Ray; Evolution, Molecular; Gene Expression Regulation, Plant; Methylation; Methyltransferases; Plant Leaves; Recombinant Proteins; Tea; Transcription, Genetic; Uric Acid

2020
Novel insight into theacrine metabolism revealed by transcriptome analysis in bitter tea (Kucha, Camellia sinensis).
    Scientific reports, 2020, 04-14, Volume: 10, Issue:1

    Topics: Camellia sinensis; Gene Expression Regulation, Plant; Plant Leaves; Transcriptome; Uric Acid

2020
Baiyacha, a wild tea plant naturally occurring high contents of theacrine and 3″-methyl-epigallocatechin gallate from Fujian, China.
    Scientific reports, 2020, 06-16, Volume: 10, Issue:1

    Topics: Alkaloids; Caffeine; Camellia; Catechin; China; Gallic Acid; Plant Extracts; Plant Leaves; Tea; Teas, Herbal; Uric Acid

2020
Theacrine, a purine alkaloid from kucha, protects against Parkinson's disease through SIRT3 activation.
    Phytomedicine : international journal of phytotherapy and phytopharmacology, 2020, Volume: 77

    Topics: Animals; Apoptosis; Behavior, Animal; Camellia; Dopaminergic Neurons; Embryo, Nonmammalian; Humans; Male; Mice, Inbred C57BL; Mitochondria; Neuroprotective Agents; Oxidopamine; Parkinsonian Disorders; Rats, Sprague-Dawley; Sirtuin 1; Uric Acid; Zebrafish

2020
Theacrine and strictinin, two major ingredients for the anti-influenza activity of Yunnan Kucha tea.
    Journal of ethnopharmacology, 2020, Nov-15, Volume: 262

    Topics: Alphainfluenzavirus; Animals; Antiviral Agents; Camellia sinensis; Cell Survival; Dogs; Humans; Madin Darby Canine Kidney Cells; Phenols; Plant Leaves; Teas, Herbal; Uric Acid

2020
Development of a liquid chromatography-tandem mass spectrometry (LC-MS/MS) method for characterizing caffeine, methylliberine, and theacrine pharmacokinetics in humans.
    Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 2020, Oct-15, Volume: 1155

    Topics: Alkaloids; Caffeine; Chromatography, Liquid; Humans; Limit of Detection; Linear Models; Purines; Reproducibility of Results; Tandem Mass Spectrometry; Uric Acid

2020
A Theacrine-Based Supplement Increases Cellular NAD
    Nutrients, 2020, Dec-03, Volume: 12, Issue:12

    Topics: Animals; Biomarkers; Cytokines; Humans; Mitochondria; Muscles; Myoblasts; NAD; Nicotinamide Phosphoribosyltransferase; RNA, Messenger; Rodentia; Sirtuin 1; Sirtuins; Uric Acid

2020
Attenuation of Tumor Development in Mammary Carcinoma Rats by Theacrine, an Antagonist of Adenosine 2A Receptor.
    Molecules (Basel, Switzerland), 2021, Dec-09, Volume: 26, Issue:24

    Topics: Adenosine A2 Receptor Antagonists; Animals; Female; Humans; Mammary Neoplasms, Experimental; MCF-7 Cells; Neoplasm Proteins; Rats; Rats, Sprague-Dawley; Receptor, Adenosine A2A; Uric Acid

2021
Identification of Co-Expressed Genes Related to Theacrine Synthesis in Tea Flowers at Different Developmental Stages.
    International journal of molecular sciences, 2021, Dec-13, Volume: 22, Issue:24

    Topics: Alkaloids; Biosynthetic Pathways; Caffeine; Camellia sinensis; China; Flowers; Gene Expression; Gene Expression Profiling; Gene Expression Regulation, Plant; Gene Regulatory Networks; Tea; Transcriptome; Uric Acid; Xanthines

2021
Theacrine ameliorates experimental liver fibrosis in rats by lowering cholesterol storage via activation of the Sirtuin 3-farnesoid X receptor signaling pathway.
    Chemico-biological interactions, 2022, Sep-01, Volume: 364

    Topics: Animals; beta Catenin; Cholesterol; Liver; Liver Cirrhosis; Mice; Rats; Signal Transduction; Sirtuin 3; Uric Acid

2022
Theacrine alleviates sepsis-induced acute kidney injury by repressing the activation of NLRP3/Caspase-1 inflammasome.
    PeerJ, 2022, Volume: 10

    Topics: Acute Kidney Injury; Animals; Caspase 1; Creatinine; Inflammasomes; Interleukin-18; Lipopolysaccharides; Mice; Mice, Inbred C57BL; NLR Family, Pyrin Domain-Containing 3 Protein; Sepsis; Uric Acid

2022