Results 31 to 40 of about 164,322 (311)
Espresso coffees, caffeine and chlorogenic acid intake: potential health implications [PDF]
, 2012 HPLC analysis of 20 commercial espresso coffees revealed 6-fold differences in caffeine levels, a 17-fold range of caffeoylquinic acid contents, and 4-fold differences in the caffeoylquinic acid:caffeine ratio.
Stalmach, A. +7 more
core +1 more source
Heliyon, 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
UV micro-irradiation of the Chinese hamster cell nucleus and caffeine post-treatment immunocytochemical localization of DNA photolesions in cells with partial and generalized chromosome shattering [PDF]
, 1983 UV micro-irradiation of a small part of the Chinese hamster nucleus and caffeine post-incubation often results in shattered chromosomes at the first post-irradiation mitosis.
Cornelis, Jan J. +14 more
core +1 more source
The Safety of Ingested Caffeine: A Comprehensive Review
Frontiers 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
Biosynthesis and Genetic Tuning of Guanine Crystals via Metabolic Engineering of Yeast
Angewandte Chemie, EarlyView.We demonstrate how yeast cells can be harnessed as cellular factories for the synthesis of optically functional guanine crystals, where genetic editing is used to tune crystal size, order and optical properties. This demonstrates a powerful new biosynthetic approach for the development of sustainable and biocompatible optical pigments, which utilizes ...
Jerome N. Janssen +11 more
wiley +2 more sources
Journal of the International Society of Sports NutritionCaffeine 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
Rapid measurement of serum caffeine concentrations in acuteclinical settings
Toxicology Communications, 2021 The number of acute caffeine poisoning cases have increased in Japan. We can use serum caffeine concentrations to evaluate the severity of caffeine poisoning and determine whether or not we should perform hemodialysis. In this study, we sought to develop
Tomoki Hanazawa +3 more
doaj +1 more source
[18F]Fluorodeprenyl‐D2 PET as a Tool to Monitor Disease Activity in GAD65‐Ab Autoimmune Encephalitis
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective To evaluate [18F]fluorodeprenyl‐D2 ([18F]F‐DED) positron‐emission tomography (PET) imaging as a biomarker of disease activity in autoimmune encephalitis (AIE) associated with glutamic acid decarboxylase 65 (GAD65) antibodies. Methods [18F]F‐DED PET was performed in 25 GAD65‐AIE patients and 8 controls using dynamic (0–60 min) and ...
Julia S. Dorneich +19 more
wiley +1 more source
Review Effect of Caffeine Overdose
RADS 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