Academic literature on the topic 'Caffeine metabolism rate'

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Journal articles on the topic "Caffeine metabolism rate"

1

Lader, Malcolm, Claire Cardwell, Philip Shine, and Nigel Scott. "Caffeine withdrawal symptoms and rate of metabolism." Journal of Psychopharmacology 10, no. 2 (1996): 110–18. http://dx.doi.org/10.1177/026988119601000205.

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2

Ashihara, Hiroshi, Hisayo Shimizu, Yoshiyuki Takeda, Takeo Suzuki, Fiona M. Gillies, and Alan Crozier. "Caffeine Metabolism in High and Low Caffeine Containing Cultivars of Camellia sinensis." Zeitschrift für Naturforschung C 50, no. 9-10 (1995): 602–7. http://dx.doi.org/10.1515/znc-1995-9-1002.

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Abstract The metabolism of [8-14C ]adenine and [2-14C]caffeine was examined in leaf segments from flush shoots of tea cultivars with high and low caffeine content. The caffeine biosynthesis pathway from AMP via theobromine was operative in both high and low caffeine containing cultivars. There was a m ore rapid rate of caffeine biosynthesis from [8-14C ]adenine in the high caffeine cultivars while the rate of degradation of both adenine nucleotides and caffeine into CO2 was greatest in cultivars with a low endogenous caffeine content. Cell-free p reparations from tea shoots contained an N-meth
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3

Vaughan, Roger A., Randi Garcia-Smith, Marco Bisoffi, Kristina A. Trujillo, and Carole A. Conn. "Effects of Caffeine on Metabolism and Mitochondria Biogenesis in Rhabdomyosarcoma Cells Compared with 2,4-Dinitrophenol." Nutrition and Metabolic Insights 5 (January 2012): NMI.S10233. http://dx.doi.org/10.4137/nmi.s10233.

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Purpose This work investigated if treatment with caffeine or 2,4-dinitrophenol (DNP) induce expression of peroxisome proliferator-activated receptor coactivator 1 alpha (PGC-1α) and increase both mitochondrial biosynthesis and metabolism in skeletal muscle. Methods Human rhabdomyosarcoma cells were treated with either ethanol control (0.1% final concentration) caffeine, or DNP at 250 or 500 μM for 16 or 24 hours. PGC-1α RNA levels were determined using quantitative reverse transcriptase polymerase chain reaction (qRT-PCR). PGC-1α protein and mitochondrial content was determined using flow cyto
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4

Bracco, D., J. M. Ferrarra, M. J. Arnaud, E. Jequier, and Y. Schutz. "Effects of caffeine on energy metabolism, heart rate, and methylxanthine metabolism in lean and obese women." American Journal of Physiology-Endocrinology and Metabolism 269, no. 4 (1995): E671—E678. http://dx.doi.org/10.1152/ajpendo.1995.269.4.e671.

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The magnitude of coffee-induced thermogenesis and the influence of coffee ingestion on substrate oxidation were investigated in 10 lean and 10 obese women, over two 24-h periods in a respiratory chamber. On one occasion the subjects consumed caffeinated coffee and on the other occasion, decaffeinated coffee. The magnitude of thermogenesis was smaller in obese (4.9 +/- 2.0%) than in lean subjects (7.6 +/- 1.3%). The thermogeneic response to caffeine was prolonged during the night in lean women only. The coffee-induced stimulation of energy expenditure was mediated by a concomitant increase in l
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5

Fenster, L., C. Quale, R. A. Hiatt, M. Wilson, G. C. Windham, and N. L. Benowitz. "Rate of Caffeine Metabolism and Risk of Spontaneous Abortion." American Journal of Epidemiology 147, no. 5 (1998): 503–10. http://dx.doi.org/10.1093/oxfordjournals.aje.a009477.

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6

Masi, Camilla, Caterina Dinnella, Nicola Pirastu, John Prescott, and Erminio Monteleone. "Caffeine metabolism rate influences coffee perception, preferences and intake." Food Quality and Preference 53 (October 2016): 97–104. http://dx.doi.org/10.1016/j.foodqual.2016.06.002.

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7

Wu, Shou En, and Wei-Liang Chen. "Exploring the Association between Urine Caffeine Metabolites and Urine Flow Rate: A Cross-Sectional Study." Nutrients 12, no. 9 (2020): 2803. http://dx.doi.org/10.3390/nu12092803.

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Examination of urine excretion of caffeine metabolites has been a simple but common way to determine the metabolism and effect of caffeine, but the relationship between urinary metabolites and urine flow rate is less discussed. To explore the association between urinary caffeine metabolite levels and urine flow rate, 1571 participants from the National Health and Nutrition Examination Survey (NHANES) 2011–2012 were enrolled in this study. We examined the association between urinary caffeine metabolites and urine flow rate with linear regression models. Separate models were constructed for male
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8

Brown, Christopher R., Peyton Jacob III, Margaret Wilson, and Neal L. Benowitz. "Changes in rate and pattern of caffeine metabolism after cigarette abstinence." Clinical Pharmacology and Therapeutics 43, no. 5 (1988): 488–91. http://dx.doi.org/10.1038/clpt.1988.63.

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9

Pascua, Stephanie M., Gabrielle E. McGahey, Ning Ma, Justin J. Wang, and Michelle A. Digman. "Caffeine and Cisplatin Effectively Targets the Metabolism of a Triple-Negative Breast Cancer Cell Line Assessed via Phasor-FLIM." International Journal of Molecular Sciences 21, no. 7 (2020): 2443. http://dx.doi.org/10.3390/ijms21072443.

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Triple-negative tumor cells, a malignant subtype of breast cancer, lack a biologically targeted therapy. Given its DNA repair inhibiting properties, caffeine has been shown to enhance the effectiveness of specific tumor chemotherapies. In this work, we have investigated the effects of caffeine, cisplatin, and a combination of the two as potential treatments in energy metabolism for three cell lines, triple-negative breast cancer (MDA-MB-231), estrogen-receptor lacking breast cancer (MCF7) and breast epithelial cells (MCF10A) using a sensitive label-free approach, phasor-fluorescence lifetime i
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10

Lopes, Cátia R., Andreia Oliveira, Ingride Gaspar, et al. "Effects of Chronic Caffeine Consumption on Synaptic Function, Metabolism and Adenosine Modulation in Different Brain Areas." Biomolecules 13, no. 1 (2023): 106. http://dx.doi.org/10.3390/biom13010106.

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Adenosine receptors mainly control synaptic function, and excessive activation of adenosine receptors may worsen the onset of many neurological disorders. Accordingly, the regular intake of moderate doses of caffeine antagonizes adenosine receptors and affords robust neuroprotection. Although caffeine intake alters brain functional connectivity and multi-omics analyses indicate that caffeine intake modifies synaptic and metabolic processes, it is unclear how caffeine intake affects behavior, synaptic plasticity and its modulation by adenosine. We now report that male mice drinking caffeinated
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