methylxanthine


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Related to methylxanthine: caffeine, aminophylline, Xanthines

methylxanthine

(mĕth″ĭl-zăn′thēn)
A group of naturally occurring agents present in caffeine, theophylline, and theobromine. They act on the central nervous system, stimulate the myocardium, relax smooth muscle, and promote diuresis. A commonly prescribed methylxanthine is theophylline, which is used primarily to treat asthma and chronic obstructive pulmonary disease.
References in periodicals archive ?
The observation of the infants was done before and during the methylxanthine treatment, with the help of a cardio respiratory monitor and a pulse oximeter.
Early investigations have shown that some methylxanthines (caffeine, pentoxifylline, and others) at concentrations of an order of ca.
Almost half the individuals were receiving methylxanthines, representing most of the patients who received only one controller medication.
Due to its methylxanthine content, mate is a proven energizer.
Since then, other researchers reporting on much larger groups of women have reported "no evidence of an association between methylxanthine consumption and benign breast disease." Of course, if a woman with fibrocystic breast disease feels better without coffee, she should by all means stay away from it.
Theophylline is the major methylxanthine used in asthma therapy.
0.25 mM IBMX (3-isobutyl-1 methylxanthine; Sigma-Aldrich, Saint Louis, MO, USA) was added to the adipogenic differentiation cultures upon first change of culture media.
Seizures worsened with phenobarbital partially inhibiting GLUT 1, diazepam, methylxanthine and caffeine (9).
[1] Since 1970s, methylxanthine derivatives have been administered both parenterally and orally to decrease the frequency of apneic episodes and prevent the need for assisted ventilation.
Second, studies are needed to measure changes in catecholamine or methylxanthine concentrations in response to acute caffeine intake.
For that reason, it has been my practice to reserve high-dose iodine therapy for women who do not respond to more conservative measures such as methylxanthine avoidance and supplementation with vitamin E.
In addition, restriction was imposed on the intake of methylxanthine containing beverages, as well as on the consumption of grapefruit juice.