methylxanthine


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Related to methylxanthine: caffeine, aminophylline, Xanthines

methylxanthine

(ˌmiːθaɪlˈzænˌθiːn)
n
(Chemistry) a compound formed through the methylation of xanthine, such as caffeine or theophylline
References in periodicals archive ?
Horrid heartburn Chocolate contains methylxanthine, which in some people results in a pleasant buzz sensation, but can, in some cases, make hearts beat faster and also cause acid heartburn by relaxing the muscle between the oesophagus and the stomach allowing acid to return causing pain.
Pentoxifylline (PTX), a methylxanthine derivative, specially blocks the synthesis of TNF-a, among other cytokines, by inhibiting gene transcription, thereby reducing the accumulation of TNF-a mRNA.
Pentoxifylline (PTX) is a methylxanthine derivative and phosphodiesterase inhibitor, which inhibits the generation of mRNA for TNF-[alpha] in vitro and decreases the in vivo production of TNF-[alpha] in humans and in experimental animals [4].
Pentoxifylline, a methylxanthine inhibiting the activity of tumor necrosis factor [alpha] (TNF[alpha]), an important component in the X-ALD inflammatory response, has been recently used in the treatment of X-ALD.
Pentoxifylline: Pentoxifylline is a methylxanthine that has been postulated to improve outcomes in sepsis through modulating the activity of the reticuloendothelial system and decreasing the neutrophil activation that contributes to acute tissue injury.
The methylxanthine beverages andfoods : chemistry, composition, and health effect.
The news emerged on the day Bolt's training partner Yohan Blake, who tested positive for methylxanthine in June, was withdrawn from the Jamaican team.
Sprinters Yohan Blake, Marvin Anderson and Sheri-Ann Brooks as well as Allodin Fothergill and Lansford Spence had tested positive for the stimulant methylxanthine.
Theophylline, a methylxanthine, affords moderate bronchial smooth muscle relaxation.
The maturity variables were days off incubator, days off gavage feeding, days without apnea, days without bradycardia, days since last methylxanthine exposure, days off oxygen, and a combined exponential smoothing variable for all six smoothed dimensions.
Both sympathomimetic and diuretic actions of caffeine lead to a putative dehydrating action, based on the distribution of methylxanthine into all body fluid compartments.
Acetazolamide, methylxanthine derivatives, nicotine, opioid antagonists, and medroxyprogesterone have all been evaluated for treatment of OSA, but none were found effective.