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Caffeine is xanthine alkaloid that occurs naturally in seeds, leaves and fruit of several plants and trees that acts as a natural pesticide. Caffeine is a major component of coffee, tea and chocolate and in humans acts as a central nervous system (CNS) stimulant.
- Pharmacology
Caffeine (1,3,7-trimethylxanthine) is a plant alkaloid with...
- Pharmacology
26 sie 2024 · Caffeine, nitrogenous organic compound of the alkaloid group, substances that have marked physiological effects. Caffeine occurs in tea, coffee, guarana, maté, kola nuts, and cacao. Pure caffeine (trimethylxanthine) occurs as a white powder or as silky needles, which melt at 238 °C (460 °F); it.
Thus it requires roughly 50–100 ordinary cups of coffee to reach the toxic dose. However, pure powdered caffeine, which is available as a dietary supplement, can be lethal in tablespoon-sized amounts. Uses. Medical. Caffeine is used for both prevention [34] and treatment [35] of bronchopulmonary dysplasia in premature infants.
1 kwi 2024 · Caffeine is the world's most popular stimulant and psychoactive substance. Given the ubiquitous use of caffeine, it is crucial for us to comprehend how our body interacts with caffeine. The pharmacokinetics of caffeine and its action mechanisms have been reviewed in this paper.
Caffeine (1,3,7-trimethylxanthine) is a plant alkaloid with a chemical structure of C 8 H 10 N 4 O 2 (see Figure 2–1) and a molecular weight of 194.19. In pure form, it is a bitter white powder. Structurally, caffeine (and the other methylxanthines) resembles the purines.
Caffeine (1,3,7-trimethylxanthine) is a psychostimulant purine-like alkaloid, which is found naturally in coffee, tea, cacao beans (source for chocolate and cocoa) guarana, mate, and kola nuts, though it has been identified in more than 60 plant species [1,2].
1 sty 2019 · Effect of caffeine ( ), coffee ( ), and CGA (♦) on components of the antioxidant system and in oxidative stress. Caffeine treatment restores reactive oxygen and nitrogen species. Caffeine (1 g/L) alone increases catalase and superoxide dismutase (SOD) activities.
