Theophylline

Bucklin, Mason H.; Groth, Christine M.

doi:10.1016/b978-0-12-386454-3.00792-2

Cited by 3 publications

(3 citation statements)

References 3 publications

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“…In terms of medications prescription, those who are taking theophylline should not be prescribed macrolide antibiotics to prevent symptoms such as nausea, vomiting, or palpitations due to increased serum methylxanthines level 27 . Narcotics, antihistamines, anticholinergic and hypnotic agents should not be prescribed as they might exacerbate COPD after COVID-19 infection 28 , 29 , 30 .…”

Section: Discussionmentioning

confidence: 99%

The Provision of Dental Care to COVID-19 Survivors: A Concise Review

Ngeow

Liszen

Yang

et al. 2022

International Dental Journal

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Section: Discussionmentioning

confidence: 99%

The Provision of Dental Care to COVID-19 Survivors: A Concise Review

Ngeow

Liszen

Yang

et al. 2022

International Dental Journal

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“…Tea and coffee beans naturally contains theophylline. Theobromine level is reported only 0.15-0.46% in different types of chocolates (1,11).…”

Section: E-issn: 2321-6794mentioning

confidence: 96%

“…Content of caffeine in coffee is to be about 0.4-2.4% dry weight. Content of caffeine in young leaves of camellia sinensis, camellia assamica and camellia taliensis is 2%-3% dry weight but it represents less than 0.02% in camellia kissi while the content of caffeine in tea(infusion) is in between 1.0% and 3.5% of the composition (1,11).…”

Section: Percentage Of Xanthine Alkaloidsmentioning

confidence: 98%

Simultaneous estimation of xanthine alkaloids (Theophylline, Theobromine and Caffeine) by High-Performance Liquid Chromatography

Mourya¹,

Bodla²,

Taurean³

et al. 2019

Int J Drug Reg Affairs

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Methylxanthines are mainly a group of phytochemicals which are derived from purine base xanthine. These xanthines are obtained from plant as a result of secondary metabolism. There are various physiological actions that have been attributed to these derivatives in neurogenerative diseases, respiratory diseases, cancer and diabetes. The aim of this study is to develop a suitable qualitative and quantitative method for these xanthine derivatives. HPLC method is suitable for simultaneous estimation of methylxanthines, based on their physicochemical properties. Theobromine, Theophylline and Caffeine that belongs to alkaloids possess their economic effects. They have various stimulant effects on cardiovascular system, gastrointestinal system, respiratory system, central nervous system etc. that results in increased motivation to work, increased energy and increased alertness. High performance liquid chromatography is used for simultaneous determination of theophylline, theobromine and caffeine from different tea leaves.

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Optical aptasensor for in situ detection and quantification of methylxanthines in Ilex guayusa

Intriago¹,

Oleas

Yánez³

et al. 2022

Av. Cienc. Ing. (Quito)

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The present work pursued the development of a system to detect and quantify methylxanthines in Ilex guayusa. The system, called IPMA (In situ Plant Metabolite Aptasensor), is based on an optical aptasensor that integrates a DNA complex and a porphyrin (NMM IX). IPMA's ability to detect known amounts of theophylline and caffeine in solution and infiltrated in guayusa's leaves was evaluated. The detection limits determined were: 0.25 mM for theophylline in solution, 0.1 mM for caffeine in solution, and 130 mM for caffeine in I. guayusa leaves. These results demonstrate the potential of IPMA to detect and quantify metabolites of interest directly from biological samples. Developing this type of tool will provide a wide range of applications such as the in situ determination of physiological stress in plants and the characterization of plant varieties with a higher content of compounds of pharmaceutical or food interest.

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Theophylline

Cited by 3 publications

References 3 publications

The Provision of Dental Care to COVID-19 Survivors: A Concise Review

The Provision of Dental Care to COVID-19 Survivors: A Concise Review

Simultaneous estimation of xanthine alkaloids (Theophylline, Theobromine and Caffeine) by High-Performance Liquid Chromatography

Optical aptasensor for in situ detection and quantification of methylxanthines in Ilex guayusa

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