Results 21 to 30 of about 293,138 (336)

Excess caffeine exposure impairs eye development during chick embryogenesis [PDF]

open access: yes, 2014
Caffeine has been an integral component of our diet and medicines for centuries. It is now known that over consumption of caffeine has detrimental effects on our health, and also disrupts normal foetal development in pregnant mothers.
Cheng, Xin   +6 more
core   +3 more sources

Caffeine release and absorption from caffeinated gums [PDF]

open access: yesFood & Function, 2019
Caffeine release increased with chewing time (2 min < 5 min < 10 min). Two plasma caffeine concentration peaks were observed suggesting that caffeine absorption occurs both through the oral mucosa and gastrointestinal tract.
Cecile Morris   +4 more
openaire   +3 more sources

Effect Solvent and Extraction Method on the Characteristics of Green Bean Robusta Coffee [PDF]

open access: yesBIO Web of Conferences
One of the chemical elements found in coffee is caffeine, which is the second-largest secondary metabolite after chlorogenic acid. Robusta coffee has a higher caffeine content than Arabica.
Winarsih Sri   +3 more
doaj   +1 more source

Investigating the removal of some pharmaceutical compounds in hospital wastewater treatment plants operating in Saudi Arabia [PDF]

open access: yes, 2016
The concentrations of 12 pharmaceutical compounds (atenolol, erythromycin, cyclophosphamide, paracetamol, bezafibrate, carbamazepine, ciprofloxacin, caffeine, clarithromycin, lidocaine, sulfamethoxazole and Nacetylsulfamethoxazol (NACS)) were ...
Akunna, Joseph C.   +3 more
core   +3 more sources

Effects of chronic caffeine intake and withdrawal on neural activity assessed via resting-state functional magnetic resonance imaging in mice

open access: yesHeliyon, 2022
Caffeine is a psychoactive substance that not only improves wakefulness, but also slows the cognitive decline caused by aging. However, at present, there are no reports about the effects of caffeine withdrawal, including headaches and changes in brain ...
Mitsuki Rikitake   +11 more
doaj   +1 more source

The Safety of Ingested Caffeine: A Comprehensive Review

open access: yesFrontiers in Psychiatry, 2017
Caffeine is the most widely consumed psychoactive drug in the world. Natural sources of caffeine include coffee, tea, and chocolate. Synthetic caffeine is also added to products to promote arousal, alertness, energy, and elevated mood.
Jennifer L. Temple   +6 more
doaj   +1 more source

Induction of chromosome damage by ultraviolet light and caffeine: Correlation of cytogenetic evaluation and flow karyotype [PDF]

open access: yes, 1982
Asynchrononously growing cells of a M3-1 Chinese hamster line were ultraviolet (UV) irradiated ( = 254 nm) with UV fluences up to 7.5 J/m2. After irradiation, cells were incubated with or without 2 mM caffeine for 20 hr, then mitotic cells were selected ...
Carrano   +20 more
core   +1 more source

Common questions and misconceptions about caffeine supplementation: what does the scientific evidence really show?

open access: yesJournal of the International Society of Sports Nutrition
Caffeine is a popular ergogenic aid that has a plethora of evidence highlighting its positive effects. A Google Scholar search using the keywords “caffeine” and “exercise” yields over 200,000 results, emphasizing the extensive research on this topic ...
Jose Antonio   +19 more
doaj   +1 more source

Review Effect of Caffeine Overdose

open access: yesRADS Journal of Biological Research & Applied Science, 2021
Background: Caffeine is from methyl xanthine class which mainly stimulates the central nervous system. Caffeine is one of the most widely used psychoactive drugs in the world.
Zaheer Ahmed Chandio   +4 more
doaj   +1 more source

Digital image processing of optical density wave propagation in Dictyostelium discoideum and analysis of the effects of caffeine and ammonia [PDF]

open access: yes, 1989
Waves of chemotactic movement during the early phase of aggregation in Dictyostelium discoideum were analyzed by digital image processing in a manner that immediately shows the following parameters: wave propagation velocity, period length, wave ...
Siegert, Florian, Weijer, Cornelis J.
core   +1 more source

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